/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.3-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-16 15:38:42,050 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-16 15:38:42,057 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-16 15:38:42,110 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-16 15:38:42,110 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-16 15:38:42,115 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-16 15:38:42,131 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-16 15:38:42,133 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-16 15:38:42,136 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-16 15:38:42,143 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-16 15:38:42,145 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-16 15:38:42,149 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-16 15:38:42,149 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-16 15:38:42,152 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-16 15:38:42,154 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-16 15:38:42,155 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-16 15:38:42,159 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-16 15:38:42,160 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-16 15:38:42,163 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-16 15:38:42,169 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-16 15:38:42,177 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-16 15:38:42,179 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-16 15:38:42,181 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-16 15:38:42,184 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-16 15:38:42,195 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-10-16 15:38:42,201 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-16 15:38:42,202 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-16 15:38:42,205 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-16 15:38:42,206 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-16 15:38:42,207 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-16 15:38:42,208 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-16 15:38:42,209 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-16 15:38:42,209 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-16 15:38:42,209 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-16 15:38:42,210 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-16 15:38:42,212 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-16 15:38:42,213 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 15:38:42,278 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-16 15:38:42,278 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-16 15:38:42,279 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-16 15:38:42,279 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-16 15:38:42,283 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-16 15:38:42,283 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-16 15:38:42,287 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-16 15:38:42,287 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-16 15:38:42,288 INFO L138 SettingsManager]: * Use SBE=true [2022-10-16 15:38:42,288 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-16 15:38:42,288 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-16 15:38:42,288 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-16 15:38:42,289 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-16 15:38:42,289 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-16 15:38:42,289 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-16 15:38:42,289 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-16 15:38:42,290 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-16 15:38:42,290 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-16 15:38:42,290 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-16 15:38:42,290 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-16 15:38:42,290 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-16 15:38:42,291 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-16 15:38:42,291 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-16 15:38:42,291 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-16 15:38:42,291 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-16 15:38:42,292 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-16 15:38:42,292 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 15:38:42,292 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-16 15:38:42,292 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-16 15:38:42,292 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-16 15:38:42,293 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-16 15:38:42,293 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-16 15:38:42,293 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-16 15:38:42,293 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-16 15:38:42,695 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-16 15:38:42,725 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-16 15:38:42,729 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-16 15:38:42,730 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-16 15:38:42,731 INFO L275 PluginConnector]: CDTParser initialized [2022-10-16 15:38:42,733 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded/rekh_ctm.3-1.c [2022-10-16 15:38:42,832 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/180449491/e1974ebceab34ca186b6e96af6dfbc73/FLAGe8684f5d7 [2022-10-16 15:38:43,728 INFO L306 CDTParser]: Found 1 translation units. [2022-10-16 15:38:43,729 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/rekh_ctm.3-1.c [2022-10-16 15:38:43,764 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/180449491/e1974ebceab34ca186b6e96af6dfbc73/FLAGe8684f5d7 [2022-10-16 15:38:43,851 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/180449491/e1974ebceab34ca186b6e96af6dfbc73 [2022-10-16 15:38:43,854 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-16 15:38:43,862 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-16 15:38:43,867 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-16 15:38:43,867 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-16 15:38:43,872 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-16 15:38:43,873 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 03:38:43" (1/1) ... [2022-10-16 15:38:43,876 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@39396d01 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:38:43, skipping insertion in model container [2022-10-16 15:38:43,877 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 03:38:43" (1/1) ... [2022-10-16 15:38:43,888 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-16 15:38:44,011 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-16 15:38:44,351 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.3-1.c[1870,1883] [2022-10-16 15:38:45,332 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 15:38:45,353 INFO L203 MainTranslator]: Completed pre-run [2022-10-16 15:38:45,370 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.3-1.c[1870,1883] [2022-10-16 15:38:45,711 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 15:38:45,785 INFO L208 MainTranslator]: Completed translation [2022-10-16 15:38:45,785 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:38:45 WrapperNode [2022-10-16 15:38:45,786 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-16 15:38:45,787 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-16 15:38:45,787 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-16 15:38:45,787 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-16 15:38:45,797 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 15:38:45,971 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 15:38:46,228 INFO L138 Inliner]: procedures = 99, calls = 2816, calls flagged for inlining = 35, calls inlined = 35, statements flattened = 8412 [2022-10-16 15:38:46,229 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-16 15:38:46,230 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-16 15:38:46,230 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-16 15:38:46,230 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-16 15:38:46,243 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 15:38:46,243 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 15:38:46,294 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 15:38:46,294 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 15:38:46,549 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 15:38:46,591 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 15:38:46,619 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 15:38:46,647 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 15:38:46,687 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-16 15:38:46,690 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-16 15:38:46,690 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-16 15:38:46,690 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-16 15:38:46,692 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 15:38:46,701 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 15:38:46,715 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 15:38:46,734 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 15:38:46,793 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 15:38:46,863 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_state [2022-10-16 15:38:46,864 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_state [2022-10-16 15:38:46,864 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_state [2022-10-16 15:38:46,864 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_state [2022-10-16 15:38:46,864 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-16 15:38:46,864 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_need_to_run_nxtbg [2022-10-16 15:38:46,865 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_need_to_run_nxtbg [2022-10-16 15:38:46,865 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2022-10-16 15:38:46,865 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2022-10-16 15:38:46,865 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write___startrek_current_priority [2022-10-16 15:38:46,866 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write___startrek_current_priority [2022-10-16 15:38:46,866 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_input [2022-10-16 15:38:46,866 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_input [2022-10-16 15:38:46,866 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_hyperperiod [2022-10-16 15:38:46,866 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_hyperperiod [2022-10-16 15:38:46,866 INFO L130 BoogieDeclarations]: Found specification of procedure bg_nxtcolorsensor [2022-10-16 15:38:46,866 INFO L138 BoogieDeclarations]: Found implementation of procedure bg_nxtcolorsensor [2022-10-16 15:38:46,867 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Writer [2022-10-16 15:38:46,867 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Writer [2022-10-16 15:38:46,867 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtcolorsensor_mode [2022-10-16 15:38:46,867 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtcolorsensor_mode [2022-10-16 15:38:46,867 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-16 15:38:46,867 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2022-10-16 15:38:46,868 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2022-10-16 15:38:46,868 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_count [2022-10-16 15:38:46,868 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_count [2022-10-16 15:38:46,868 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_T_state [2022-10-16 15:38:46,868 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_T_state [2022-10-16 15:38:46,868 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_output [2022-10-16 15:38:46,868 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_output [2022-10-16 15:38:46,869 INFO L130 BoogieDeclarations]: Found specification of procedure move_motor [2022-10-16 15:38:46,869 INFO L138 BoogieDeclarations]: Found implementation of procedure move_motor [2022-10-16 15:38:46,869 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_speed [2022-10-16 15:38:46,869 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_speed [2022-10-16 15:38:46,869 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2022-10-16 15:38:46,869 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2022-10-16 15:38:46,869 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-16 15:38:46,870 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2022-10-16 15:38:46,870 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2022-10-16 15:38:46,870 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_set_nxtcolorsensor [2022-10-16 15:38:46,870 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_set_nxtcolorsensor [2022-10-16 15:38:46,870 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t3 [2022-10-16 15:38:46,870 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t3 [2022-10-16 15:38:46,870 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_output [2022-10-16 15:38:46,871 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_output [2022-10-16 15:38:46,871 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2022-10-16 15:38:46,871 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2022-10-16 15:38:46,871 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_T_count [2022-10-16 15:38:46,871 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_T_count [2022-10-16 15:38:46,872 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2022-10-16 15:38:46,873 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2022-10-16 15:38:46,873 INFO L130 BoogieDeclarations]: Found specification of procedure TerminateTask [2022-10-16 15:38:46,873 INFO L138 BoogieDeclarations]: Found implementation of procedure TerminateTask [2022-10-16 15:38:46,873 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_W_count [2022-10-16 15:38:46,873 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_W_count [2022-10-16 15:38:46,874 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read___startrek_current_priority [2022-10-16 15:38:46,874 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read___startrek_current_priority [2022-10-16 15:38:46,875 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_count [2022-10-16 15:38:46,875 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_count [2022-10-16 15:38:46,875 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_count [2022-10-16 15:38:46,875 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_count [2022-10-16 15:38:46,876 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_speed [2022-10-16 15:38:46,876 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_speed [2022-10-16 15:38:46,876 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtcolorsensor_data_mode [2022-10-16 15:38:46,877 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtcolorsensor_data_mode [2022-10-16 15:38:46,877 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_threshold [2022-10-16 15:38:46,877 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_threshold [2022-10-16 15:38:46,877 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_need_to_read [2022-10-16 15:38:46,877 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_need_to_read [2022-10-16 15:38:46,878 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_R_state [2022-10-16 15:38:46,878 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_R_state [2022-10-16 15:38:46,879 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Reader [2022-10-16 15:38:46,879 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Reader [2022-10-16 15:38:46,879 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_dir [2022-10-16 15:38:46,879 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_dir [2022-10-16 15:38:46,880 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_speed [2022-10-16 15:38:46,880 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_speed [2022-10-16 15:38:46,880 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_input [2022-10-16 15:38:46,880 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_input [2022-10-16 15:38:46,880 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_state [2022-10-16 15:38:46,881 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_state [2022-10-16 15:38:46,881 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_need_to_run_nxtbg [2022-10-16 15:38:46,881 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_need_to_run_nxtbg [2022-10-16 15:38:46,881 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_W_state [2022-10-16 15:38:46,881 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_W_state [2022-10-16 15:38:46,881 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_R_count [2022-10-16 15:38:46,881 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_R_count [2022-10-16 15:38:46,881 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_TapeMover [2022-10-16 15:38:46,882 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_TapeMover [2022-10-16 15:38:46,882 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-16 15:38:46,882 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Controller [2022-10-16 15:38:46,883 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Controller [2022-10-16 15:38:46,883 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-16 15:38:46,883 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-16 15:38:47,591 INFO L235 CfgBuilder]: Building ICFG [2022-10-16 15:38:47,597 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-16 15:39:10,033 INFO L276 CfgBuilder]: Performing block encoding [2022-10-16 15:39:10,075 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-16 15:39:10,076 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-10-16 15:39:10,082 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 03:39:10 BoogieIcfgContainer [2022-10-16 15:39:10,083 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-16 15:39:10,086 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-16 15:39:10,086 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-16 15:39:10,090 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-16 15:39:10,091 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 03:38:43" (1/3) ... [2022-10-16 15:39:10,091 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40b435d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 03:39:10, skipping insertion in model container [2022-10-16 15:39:10,092 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 15:39:10,092 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40b435d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 03:39:10, skipping insertion in model container [2022-10-16 15:39:10,092 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 03:39:10" (3/3) ... [2022-10-16 15:39:10,094 INFO L112 eAbstractionObserver]: Analyzing ICFG rekh_ctm.3-1.c [2022-10-16 15:39:10,119 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-16 15:39:10,120 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 48 error locations. [2022-10-16 15:39:10,244 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-16 15:39:10,254 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;@62ed405e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-16 15:39:10,255 INFO L358 AbstractCegarLoop]: Starting to check reachability of 48 error locations. [2022-10-16 15:39:10,273 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 15:39:10,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2022-10-16 15:39:10,313 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 15:39:10,315 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 15:39:10,316 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 15:39:10,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 15:39:10,325 INFO L85 PathProgramCache]: Analyzing trace with hash 2104003966, now seen corresponding path program 1 times [2022-10-16 15:39:10,335 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 15:39:10,336 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2103521410] [2022-10-16 15:39:10,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 15:39:10,337 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms