/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_nxt.2.M1-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-16 15:34:28,305 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-16 15:34:28,308 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-16 15:34:28,366 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-16 15:34:28,366 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-16 15:34:28,370 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-16 15:34:28,374 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-16 15:34:28,383 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-16 15:34:28,385 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-16 15:34:28,391 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-16 15:34:28,393 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-16 15:34:28,396 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-16 15:34:28,396 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-16 15:34:28,399 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-16 15:34:28,401 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-16 15:34:28,420 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-16 15:34:28,422 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-16 15:34:28,423 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-16 15:34:28,425 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-16 15:34:28,427 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-16 15:34:28,429 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-16 15:34:28,430 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-16 15:34:28,432 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-16 15:34:28,433 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-16 15:34:28,437 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-16 15:34:28,438 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-16 15:34:28,438 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-16 15:34:28,439 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-16 15:34:28,440 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-16 15:34:28,441 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-16 15:34:28,441 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-16 15:34:28,442 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-16 15:34:28,443 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-16 15:34:28,444 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-16 15:34:28,445 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-16 15:34:28,446 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-16 15:34:28,447 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-16 15:34:28,447 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-16 15:34:28,447 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-16 15:34:28,448 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-16 15:34:28,449 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-16 15:34:28,454 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 15:34:28,503 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-16 15:34:28,504 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-16 15:34:28,504 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-16 15:34:28,505 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-16 15:34:28,506 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-16 15:34:28,506 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-16 15:34:28,509 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-16 15:34:28,509 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-16 15:34:28,510 INFO L138 SettingsManager]: * Use SBE=true [2022-10-16 15:34:28,510 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-16 15:34:28,511 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-16 15:34:28,511 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-16 15:34:28,512 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-16 15:34:28,512 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-16 15:34:28,512 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-16 15:34:28,512 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-16 15:34:28,512 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-16 15:34:28,513 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-16 15:34:28,513 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-16 15:34:28,513 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-16 15:34:28,513 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-16 15:34:28,514 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-16 15:34:28,514 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-16 15:34:28,514 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-16 15:34:28,514 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-16 15:34:28,515 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-16 15:34:28,515 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 15:34:28,515 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-16 15:34:28,516 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-16 15:34:28,516 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-16 15:34:28,516 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-16 15:34:28,516 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-16 15:34:28,517 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-16 15:34:28,517 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-16 15:34:28,892 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-16 15:34:28,917 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-16 15:34:28,920 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-16 15:34:28,922 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-16 15:34:28,923 INFO L275 PluginConnector]: CDTParser initialized [2022-10-16 15:34:28,924 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded/rekcba_nxt.2.M1-2.c [2022-10-16 15:34:29,011 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3cba89b18/bd21919be3f64523ac5bf9e3c2b41197/FLAG6e3684e30 [2022-10-16 15:34:29,924 INFO L306 CDTParser]: Found 1 translation units. [2022-10-16 15:34:29,925 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/rekcba_nxt.2.M1-2.c [2022-10-16 15:34:29,950 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3cba89b18/bd21919be3f64523ac5bf9e3c2b41197/FLAG6e3684e30 [2022-10-16 15:34:30,074 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3cba89b18/bd21919be3f64523ac5bf9e3c2b41197 [2022-10-16 15:34:30,077 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-16 15:34:30,086 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-16 15:34:30,090 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-16 15:34:30,091 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-16 15:34:30,095 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-16 15:34:30,097 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 03:34:30" (1/1) ... [2022-10-16 15:34:30,098 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3f7885e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:34:30, skipping insertion in model container [2022-10-16 15:34:30,098 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 03:34:30" (1/1) ... [2022-10-16 15:34:30,108 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-16 15:34:30,200 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-16 15:34:30,378 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_nxt.2.M1-2.c[1937,1950] [2022-10-16 15:34:30,838 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 15:34:30,855 INFO L203 MainTranslator]: Completed pre-run [2022-10-16 15:34:30,873 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_nxt.2.M1-2.c[1937,1950] [2022-10-16 15:34:31,151 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 15:34:31,188 INFO L208 MainTranslator]: Completed translation [2022-10-16 15:34:31,192 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:34:31 WrapperNode [2022-10-16 15:34:31,192 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-16 15:34:31,193 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-16 15:34:31,193 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-16 15:34:31,194 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-16 15:34:31,202 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:34:31" (1/1) ... [2022-10-16 15:34:31,285 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:34:31" (1/1) ... [2022-10-16 15:34:31,435 INFO L138 Inliner]: procedures = 58, calls = 1758, calls flagged for inlining = 24, calls inlined = 24, statements flattened = 3900 [2022-10-16 15:34:31,435 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-16 15:34:31,436 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-16 15:34:31,436 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-16 15:34:31,436 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-16 15:34:31,448 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:34:31" (1/1) ... [2022-10-16 15:34:31,448 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:34:31" (1/1) ... [2022-10-16 15:34:31,473 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:34:31" (1/1) ... [2022-10-16 15:34:31,473 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:34:31" (1/1) ... [2022-10-16 15:34:31,584 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:34:31" (1/1) ... [2022-10-16 15:34:31,622 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:34:31" (1/1) ... [2022-10-16 15:34:31,639 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:34:31" (1/1) ... [2022-10-16 15:34:31,659 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:34:31" (1/1) ... [2022-10-16 15:34:31,692 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-16 15:34:31,694 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-16 15:34:31,695 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-16 15:34:31,695 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-16 15:34:31,696 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:34:31" (1/1) ... [2022-10-16 15:34:31,707 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 15:34:31,723 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 15:34:31,741 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 15:34:31,758 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 15:34:31,812 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-16 15:34:31,812 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2022-10-16 15:34:31,812 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2022-10-16 15:34:31,813 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_nxtway_gs_mode [2022-10-16 15:34:31,813 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_nxtway_gs_mode [2022-10-16 15:34:31,813 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-16 15:34:31,813 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2022-10-16 15:34:31,814 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2022-10-16 15:34:31,814 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2022-10-16 15:34:31,814 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2022-10-16 15:34:31,814 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_obstacle_flag [2022-10-16 15:34:31,814 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_obstacle_flag [2022-10-16 15:34:31,814 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-16 15:34:31,815 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2022-10-16 15:34:31,815 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2022-10-16 15:34:31,815 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_gyro_sensor [2022-10-16 15:34:31,815 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_gyro_sensor [2022-10-16 15:34:31,815 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts1 [2022-10-16 15:34:31,816 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts1 [2022-10-16 15:34:31,816 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts2 [2022-10-16 15:34:31,816 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts2 [2022-10-16 15:34:31,816 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-16 15:34:31,816 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_Background [2022-10-16 15:34:31,816 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_Background [2022-10-16 15:34:31,816 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-16 15:34:31,817 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2022-10-16 15:34:31,817 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2022-10-16 15:34:31,817 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_speed [2022-10-16 15:34:31,817 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_speed [2022-10-16 15:34:31,817 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-10-16 15:34:31,817 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-10-16 15:34:31,817 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-16 15:34:31,818 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-16 15:34:31,818 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-16 15:34:31,818 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_systick_ms [2022-10-16 15:34:31,818 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_systick_ms [2022-10-16 15:34:31,818 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2022-10-16 15:34:31,818 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2022-10-16 15:34:31,819 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtway_gs_mode [2022-10-16 15:34:31,819 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtway_gs_mode [2022-10-16 15:34:32,418 INFO L235 CfgBuilder]: Building ICFG [2022-10-16 15:34:32,421 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-16 15:34:39,455 INFO L276 CfgBuilder]: Performing block encoding [2022-10-16 15:34:39,490 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-16 15:34:39,490 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-10-16 15:34:39,495 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 03:34:39 BoogieIcfgContainer [2022-10-16 15:34:39,496 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-16 15:34:39,499 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-16 15:34:39,499 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-16 15:34:39,503 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-16 15:34:39,504 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 03:34:30" (1/3) ... [2022-10-16 15:34:39,505 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c7a0e10 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 03:34:39, skipping insertion in model container [2022-10-16 15:34:39,505 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:34:31" (2/3) ... [2022-10-16 15:34:39,505 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c7a0e10 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 03:34:39, skipping insertion in model container [2022-10-16 15:34:39,506 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 03:34:39" (3/3) ... [2022-10-16 15:34:39,512 INFO L112 eAbstractionObserver]: Analyzing ICFG rekcba_nxt.2.M1-2.c [2022-10-16 15:34:39,535 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-16 15:34:39,535 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 60 error locations. [2022-10-16 15:34:39,655 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-16 15:34:39,664 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;@eba2f49, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-16 15:34:39,665 INFO L358 AbstractCegarLoop]: Starting to check reachability of 60 error locations. [2022-10-16 15:34:39,677 INFO L276 IsEmpty]: Start isEmpty. Operand has 1322 states, 826 states have (on average 1.334140435835351) internal successors, (1102), 917 states have internal predecessors, (1102), 419 states have call successors, (419), 16 states have call predecessors, (419), 16 states have return successors, (419), 417 states have call predecessors, (419), 419 states have call successors, (419) [2022-10-16 15:34:39,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-10-16 15:34:39,689 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 15:34:39,690 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 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 15:34:39,690 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [__startrek_entry_pt_OSEK_Task_ts1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, __startrek_entry_pt_OSEK_Task_ts1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 58 more)] === [2022-10-16 15:34:39,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 15:34:39,696 INFO L85 PathProgramCache]: Analyzing trace with hash 1066703688, now seen corresponding path program 1 times [2022-10-16 15:34:39,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 15:34:39,709 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1111985601] [2022-10-16 15:34:39,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 15:34:39,710 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 15:34:40,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:34:40,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 15:34:40,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:34:40,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-16 15:34:40,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:34:40,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-10-16 15:34:40,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:34:40,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-10-16 15:34:40,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:34:40,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-10-16 15:34:40,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:34:40,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-10-16 15:34:40,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:34:40,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-10-16 15:34:40,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:34:40,246 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2022-10-16 15:34:40,247 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 15:34:40,247 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1111985601] [2022-10-16 15:34:40,248 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1111985601] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 15:34:40,249 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 15:34:40,249 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-16 15:34:40,252 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [687264871] [2022-10-16 15:34:40,254 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 15:34:40,262 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-10-16 15:34:40,263 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 15:34:40,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-10-16 15:34:40,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-10-16 15:34:40,325 INFO L87 Difference]: Start difference. First operand has 1322 states, 826 states have (on average 1.334140435835351) internal successors, (1102), 917 states have internal predecessors, (1102), 419 states have call successors, (419), 16 states have call predecessors, (419), 16 states have return successors, (419), 417 states have call predecessors, (419), 419 states have call successors, (419) Second operand has 2 states, 2 states have (on average 7.5) internal successors, (15), 2 states have internal predecessors, (15), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 2 states have call successors, (7) [2022-10-16 15:34:40,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 15:34:40,544 INFO L93 Difference]: Finished difference Result 2589 states and 4277 transitions. [2022-10-16 15:34:40,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-16 15:34:40,547 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 7.5) internal successors, (15), 2 states have internal predecessors, (15), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 2 states have call successors, (7) Word has length 47 [2022-10-16 15:34:40,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 15:34:40,580 INFO L225 Difference]: With dead ends: 2589 [2022-10-16 15:34:40,581 INFO L226 Difference]: Without dead ends: 1098 [2022-10-16 15:34:40,612 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-10-16 15:34:40,617 INFO L413 NwaCegarLoop]: 1887 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1887 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 15:34:40,619 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1887 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 15:34:40,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1098 states. [2022-10-16 15:34:40,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1098 to 1098. [2022-10-16 15:34:40,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1098 states, 734 states have (on average 1.3010899182561309) internal successors, (955), 774 states have internal predecessors, (955), 339 states have call successors, (339), 15 states have call predecessors, (339), 15 states have return successors, (338), 336 states have call predecessors, (338), 338 states have call successors, (338) [2022-10-16 15:34:40,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1098 states to 1098 states and 1632 transitions. [2022-10-16 15:34:40,967 INFO L78 Accepts]: Start accepts. Automaton has 1098 states and 1632 transitions. Word has length 47 [2022-10-16 15:34:40,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 15:34:40,968 INFO L495 AbstractCegarLoop]: Abstraction has 1098 states and 1632 transitions. [2022-10-16 15:34:40,968 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 7.5) internal successors, (15), 2 states have internal predecessors, (15), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 2 states have call successors, (7) [2022-10-16 15:34:40,968 INFO L276 IsEmpty]: Start isEmpty. Operand 1098 states and 1632 transitions. [2022-10-16 15:34:40,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 423 [2022-10-16 15:34:40,992 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 15:34:40,992 INFO L195 NwaCegarLoop]: trace histogram [33, 33, 33, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:34:40,993 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-16 15:34:40,993 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __startrek_entry_pt_OSEK_Task_ts1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [__startrek_entry_pt_OSEK_Task_ts1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, __startrek_entry_pt_OSEK_Task_ts1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 58 more)] === [2022-10-16 15:34:40,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 15:34:40,994 INFO L85 PathProgramCache]: Analyzing trace with hash 1541731298, now seen corresponding path program 1 times [2022-10-16 15:34:40,995 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 15:34:40,995 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2025944288] [2022-10-16 15:34:40,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 15:34:40,996 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms