/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/rekcba_ctm.2-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-16 15:31:54,598 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-16 15:31:54,601 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-16 15:31:54,657 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-16 15:31:54,657 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-16 15:31:54,661 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-16 15:31:54,665 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-16 15:31:54,670 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-16 15:31:54,675 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-16 15:31:54,677 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-16 15:31:54,679 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-16 15:31:54,681 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-16 15:31:54,682 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-16 15:31:54,688 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-16 15:31:54,690 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-16 15:31:54,695 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-16 15:31:54,697 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-16 15:31:54,697 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-16 15:31:54,703 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-16 15:31:54,712 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-16 15:31:54,715 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-16 15:31:54,717 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-16 15:31:54,718 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-16 15:31:54,719 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-16 15:31:54,729 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-16 15:31:54,730 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-16 15:31:54,731 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-16 15:31:54,732 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-16 15:31:54,734 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-16 15:31:54,735 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-16 15:31:54,736 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-16 15:31:54,736 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-16 15:31:54,739 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-16 15:31:54,740 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-16 15:31:54,741 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-16 15:31:54,741 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-16 15:31:54,741 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-16 15:31:54,742 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-16 15:31:54,742 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-16 15:31:54,742 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-16 15:31:54,747 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-16 15:31:54,750 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 15:31:54,803 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-16 15:31:54,803 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-16 15:31:54,804 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-16 15:31:54,804 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-16 15:31:54,805 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-16 15:31:54,805 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-16 15:31:54,806 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-16 15:31:54,806 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-16 15:31:54,806 INFO L138 SettingsManager]: * Use SBE=true [2022-10-16 15:31:54,807 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-16 15:31:54,807 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-16 15:31:54,807 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-16 15:31:54,807 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-16 15:31:54,807 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-16 15:31:54,808 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-16 15:31:54,808 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-16 15:31:54,808 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-16 15:31:54,808 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-16 15:31:54,808 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-16 15:31:54,809 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-16 15:31:54,809 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-16 15:31:54,809 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-16 15:31:54,809 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-16 15:31:54,810 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-16 15:31:54,810 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-16 15:31:54,810 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-16 15:31:54,810 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 15:31:54,810 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-16 15:31:54,811 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-16 15:31:54,811 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-16 15:31:54,811 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-16 15:31:54,811 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-16 15:31:54,811 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-16 15:31:54,812 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-16 15:31:55,192 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-16 15:31:55,219 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-16 15:31:55,222 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-16 15:31:55,224 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-16 15:31:55,225 INFO L275 PluginConnector]: CDTParser initialized [2022-10-16 15:31:55,226 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded/rekcba_ctm.2-2.c [2022-10-16 15:31:55,308 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/897d50b53/34e7f82b95ad4c20ad308ddd9980c0ce/FLAGe68d68d25 [2022-10-16 15:31:56,483 INFO L306 CDTParser]: Found 1 translation units. [2022-10-16 15:31:56,484 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/rekcba_ctm.2-2.c [2022-10-16 15:31:56,519 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/897d50b53/34e7f82b95ad4c20ad308ddd9980c0ce/FLAGe68d68d25 [2022-10-16 15:31:56,890 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/897d50b53/34e7f82b95ad4c20ad308ddd9980c0ce [2022-10-16 15:31:56,893 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-16 15:31:56,899 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-16 15:31:56,901 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-16 15:31:56,902 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-16 15:31:56,906 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-16 15:31:56,907 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 03:31:56" (1/1) ... [2022-10-16 15:31:56,909 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@646c65a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:31:56, skipping insertion in model container [2022-10-16 15:31:56,909 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 03:31:56" (1/1) ... [2022-10-16 15:31:56,918 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-16 15:31:57,058 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-16 15:31:57,325 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/rekcba_ctm.2-2.c[2215,2228] [2022-10-16 15:31:58,588 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 15:31:58,632 INFO L203 MainTranslator]: Completed pre-run [2022-10-16 15:31:58,652 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/rekcba_ctm.2-2.c[2215,2228] [2022-10-16 15:31:59,240 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 15:31:59,368 INFO L208 MainTranslator]: Completed translation [2022-10-16 15:31:59,368 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:31:59 WrapperNode [2022-10-16 15:31:59,369 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-16 15:31:59,370 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-16 15:31:59,371 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-16 15:31:59,371 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-16 15:31:59,380 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:31:59" (1/1) ... [2022-10-16 15:31:59,612 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:31:59" (1/1) ... [2022-10-16 15:32:00,157 INFO L138 Inliner]: procedures = 101, calls = 6644, calls flagged for inlining = 37, calls inlined = 37, statements flattened = 21207 [2022-10-16 15:32:00,158 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-16 15:32:00,159 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-16 15:32:00,159 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-16 15:32:00,159 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-16 15:32:00,176 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:31:59" (1/1) ... [2022-10-16 15:32:00,177 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:31:59" (1/1) ... [2022-10-16 15:32:00,468 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:31:59" (1/1) ... [2022-10-16 15:32:00,469 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:31:59" (1/1) ... [2022-10-16 15:32:01,062 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:31:59" (1/1) ... [2022-10-16 15:32:01,122 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:31:59" (1/1) ... [2022-10-16 15:32:01,179 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:31:59" (1/1) ... [2022-10-16 15:32:01,213 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:31:59" (1/1) ... [2022-10-16 15:32:01,334 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-16 15:32:01,335 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-16 15:32:01,336 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-16 15:32:01,336 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-16 15:32:01,337 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:31:59" (1/1) ... [2022-10-16 15:32:01,346 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 15:32:01,360 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 15:32:01,388 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 15:32:01,406 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 15:32:01,461 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_state [2022-10-16 15:32:01,461 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_state [2022-10-16 15:32:01,461 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_state [2022-10-16 15:32:01,462 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_state [2022-10-16 15:32:01,462 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-16 15:32:01,462 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_need_to_run_nxtbg [2022-10-16 15:32:01,462 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_need_to_run_nxtbg [2022-10-16 15:32:01,462 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2022-10-16 15:32:01,462 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2022-10-16 15:32:01,463 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write___startrek_current_priority [2022-10-16 15:32:01,463 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write___startrek_current_priority [2022-10-16 15:32:01,463 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_input [2022-10-16 15:32:01,463 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_input [2022-10-16 15:32:01,463 INFO L130 BoogieDeclarations]: Found specification of procedure bg_nxtcolorsensor [2022-10-16 15:32:01,463 INFO L138 BoogieDeclarations]: Found implementation of procedure bg_nxtcolorsensor [2022-10-16 15:32:01,463 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Writer [2022-10-16 15:32:01,464 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Writer [2022-10-16 15:32:01,464 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtcolorsensor_mode [2022-10-16 15:32:01,464 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtcolorsensor_mode [2022-10-16 15:32:01,464 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-16 15:32:01,464 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2022-10-16 15:32:01,465 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2022-10-16 15:32:01,465 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_count [2022-10-16 15:32:01,465 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_count [2022-10-16 15:32:01,465 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_T_state [2022-10-16 15:32:01,465 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_T_state [2022-10-16 15:32:01,465 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_output [2022-10-16 15:32:01,465 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_output [2022-10-16 15:32:01,466 INFO L130 BoogieDeclarations]: Found specification of procedure move_motor [2022-10-16 15:32:01,466 INFO L138 BoogieDeclarations]: Found implementation of procedure move_motor [2022-10-16 15:32:01,466 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_speed [2022-10-16 15:32:01,466 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_speed [2022-10-16 15:32:01,466 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2022-10-16 15:32:01,466 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2022-10-16 15:32:01,467 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-16 15:32:01,467 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2022-10-16 15:32:01,467 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2022-10-16 15:32:01,467 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_set_nxtcolorsensor [2022-10-16 15:32:01,468 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_set_nxtcolorsensor [2022-10-16 15:32:01,468 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t3 [2022-10-16 15:32:01,468 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t3 [2022-10-16 15:32:01,468 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_output [2022-10-16 15:32:01,468 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_output [2022-10-16 15:32:01,469 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2022-10-16 15:32:01,469 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2022-10-16 15:32:01,469 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_T_count [2022-10-16 15:32:01,469 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_T_count [2022-10-16 15:32:01,469 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2022-10-16 15:32:01,469 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2022-10-16 15:32:01,469 INFO L130 BoogieDeclarations]: Found specification of procedure TerminateTask [2022-10-16 15:32:01,470 INFO L138 BoogieDeclarations]: Found implementation of procedure TerminateTask [2022-10-16 15:32:01,470 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_W_count [2022-10-16 15:32:01,470 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_W_count [2022-10-16 15:32:01,470 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read___startrek_current_priority [2022-10-16 15:32:01,470 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read___startrek_current_priority [2022-10-16 15:32:01,470 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_count [2022-10-16 15:32:01,471 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_count [2022-10-16 15:32:01,471 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_count [2022-10-16 15:32:01,471 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_count [2022-10-16 15:32:01,471 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_speed [2022-10-16 15:32:01,471 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_speed [2022-10-16 15:32:01,471 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtcolorsensor_data_mode [2022-10-16 15:32:01,471 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtcolorsensor_data_mode [2022-10-16 15:32:01,472 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_threshold [2022-10-16 15:32:01,472 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_threshold [2022-10-16 15:32:01,472 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_need_to_read [2022-10-16 15:32:01,472 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_need_to_read [2022-10-16 15:32:01,472 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_R_state [2022-10-16 15:32:01,472 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_R_state [2022-10-16 15:32:01,473 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Reader [2022-10-16 15:32:01,473 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Reader [2022-10-16 15:32:01,473 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_dir [2022-10-16 15:32:01,473 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_dir [2022-10-16 15:32:01,473 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_speed [2022-10-16 15:32:01,473 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_speed [2022-10-16 15:32:01,474 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_input [2022-10-16 15:32:01,474 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_input [2022-10-16 15:32:01,474 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_state [2022-10-16 15:32:01,474 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_state [2022-10-16 15:32:01,474 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_need_to_run_nxtbg [2022-10-16 15:32:01,474 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_need_to_run_nxtbg [2022-10-16 15:32:01,474 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_W_state [2022-10-16 15:32:01,475 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_W_state [2022-10-16 15:32:01,475 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_R_count [2022-10-16 15:32:01,475 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_R_count [2022-10-16 15:32:01,475 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_TapeMover [2022-10-16 15:32:01,475 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_TapeMover [2022-10-16 15:32:01,475 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_nxtcolorsensor_mode [2022-10-16 15:32:01,475 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_nxtcolorsensor_mode [2022-10-16 15:32:01,476 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-16 15:32:01,476 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Controller [2022-10-16 15:32:01,476 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Controller [2022-10-16 15:32:01,476 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-16 15:32:01,476 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-16 15:32:02,698 INFO L235 CfgBuilder]: Building ICFG [2022-10-16 15:32:02,702 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-16 15:36:14,191 INFO L276 CfgBuilder]: Performing block encoding [2022-10-16 15:36:14,241 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-16 15:36:14,241 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-10-16 15:36:14,250 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 03:36:14 BoogieIcfgContainer [2022-10-16 15:36:14,250 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-16 15:36:14,253 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-16 15:36:14,253 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-16 15:36:14,258 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-16 15:36:14,258 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 03:31:56" (1/3) ... [2022-10-16 15:36:14,259 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22ea2f5b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 03:36:14, skipping insertion in model container [2022-10-16 15:36:14,259 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:31:59" (2/3) ... [2022-10-16 15:36:14,260 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22ea2f5b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 03:36:14, skipping insertion in model container [2022-10-16 15:36:14,260 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 03:36:14" (3/3) ... [2022-10-16 15:36:14,262 INFO L112 eAbstractionObserver]: Analyzing ICFG rekcba_ctm.2-2.c [2022-10-16 15:36:14,290 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-16 15:36:14,291 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 96 error locations. [2022-10-16 15:36:14,478 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-16 15:36:14,488 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;@7ecf2627, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-16 15:36:14,489 INFO L358 AbstractCegarLoop]: Starting to check reachability of 96 error locations. [2022-10-16 15:36:14,514 INFO L276 IsEmpty]: Start isEmpty. Operand has 5007 states, 4524 states have (on average 1.5568081343943412) internal successors, (7043), 4643 states have internal predecessors, (7043), 342 states have call successors, (342), 44 states have call predecessors, (342), 44 states have return successors, (342), 332 states have call predecessors, (342), 342 states have call successors, (342) [2022-10-16 15:36:14,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-10-16 15:36:14,524 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 15:36:14,525 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 15:36:14,526 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [__startrek_entry_pt_ReaderErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, __startrek_entry_pt_ReaderErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 94 more)] === [2022-10-16 15:36:14,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 15:36:14,533 INFO L85 PathProgramCache]: Analyzing trace with hash -934825266, now seen corresponding path program 1 times [2022-10-16 15:36:14,546 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 15:36:14,547 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [113185402] [2022-10-16 15:36:14,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 15:36:14,548 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms