/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_nxt.2.M4-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-16 15:40:37,830 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-16 15:40:37,832 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-16 15:40:37,868 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-16 15:40:37,869 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-16 15:40:37,870 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-16 15:40:37,872 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-16 15:40:37,874 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-16 15:40:37,877 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-16 15:40:37,878 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-16 15:40:37,879 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-16 15:40:37,881 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-16 15:40:37,881 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-16 15:40:37,883 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-16 15:40:37,884 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-16 15:40:37,900 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-16 15:40:37,903 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-16 15:40:37,907 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-16 15:40:37,909 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-16 15:40:37,916 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-16 15:40:37,920 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-16 15:40:37,922 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-16 15:40:37,928 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-16 15:40:37,929 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-16 15:40:37,934 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-16 15:40:37,940 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-16 15:40:37,940 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-16 15:40:37,942 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-16 15:40:37,942 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-16 15:40:37,947 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-16 15:40:37,947 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-16 15:40:37,949 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-16 15:40:37,950 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-16 15:40:37,951 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-16 15:40:37,956 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-16 15:40:37,956 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-16 15:40:37,958 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-16 15:40:37,959 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-16 15:40:37,959 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-16 15:40:37,960 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-16 15:40:37,961 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-16 15:40:37,962 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 15:40:38,022 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-16 15:40:38,022 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-16 15:40:38,023 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-16 15:40:38,023 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-16 15:40:38,026 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-16 15:40:38,026 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-16 15:40:38,028 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-16 15:40:38,029 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-16 15:40:38,029 INFO L138 SettingsManager]: * Use SBE=true [2022-10-16 15:40:38,029 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-16 15:40:38,030 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-16 15:40:38,031 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-16 15:40:38,031 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-16 15:40:38,031 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-16 15:40:38,031 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-16 15:40:38,032 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-16 15:40:38,032 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-16 15:40:38,032 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-16 15:40:38,032 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-16 15:40:38,032 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-16 15:40:38,033 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-16 15:40:38,033 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-16 15:40:38,033 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-16 15:40:38,033 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-16 15:40:38,033 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-16 15:40:38,034 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-16 15:40:38,034 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 15:40:38,034 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-16 15:40:38,034 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-16 15:40:38,035 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-16 15:40:38,035 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-16 15:40:38,035 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-16 15:40:38,036 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-16 15:40:38,036 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-16 15:40:38,462 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-16 15:40:38,487 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-16 15:40:38,490 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-16 15:40:38,492 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-16 15:40:38,493 INFO L275 PluginConnector]: CDTParser initialized [2022-10-16 15:40:38,494 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded/rekh_nxt.2.M4-2.c [2022-10-16 15:40:38,571 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7aa467657/a187724db8234e77aebe72053971178a/FLAGc3508f019 [2022-10-16 15:40:39,411 INFO L306 CDTParser]: Found 1 translation units. [2022-10-16 15:40:39,412 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/rekh_nxt.2.M4-2.c [2022-10-16 15:40:39,438 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7aa467657/a187724db8234e77aebe72053971178a/FLAGc3508f019 [2022-10-16 15:40:39,547 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7aa467657/a187724db8234e77aebe72053971178a [2022-10-16 15:40:39,553 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-16 15:40:39,561 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-16 15:40:39,565 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-16 15:40:39,565 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-16 15:40:39,570 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-16 15:40:39,571 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 03:40:39" (1/1) ... [2022-10-16 15:40:39,573 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3df68faf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:40:39, skipping insertion in model container [2022-10-16 15:40:39,574 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 03:40:39" (1/1) ... [2022-10-16 15:40:39,584 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-16 15:40:39,682 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-16 15:40:39,881 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_nxt.2.M4-2.c[1765,1778] [2022-10-16 15:40:40,449 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 15:40:40,472 INFO L203 MainTranslator]: Completed pre-run [2022-10-16 15:40:40,505 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_nxt.2.M4-2.c[1765,1778] [2022-10-16 15:40:40,778 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 15:40:40,811 INFO L208 MainTranslator]: Completed translation [2022-10-16 15:40:40,812 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:40:40 WrapperNode [2022-10-16 15:40:40,812 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-16 15:40:40,814 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-16 15:40:40,814 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-16 15:40:40,814 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-16 15:40:40,824 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:40:40" (1/1) ... [2022-10-16 15:40:40,918 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:40:40" (1/1) ... [2022-10-16 15:40:41,096 INFO L138 Inliner]: procedures = 60, calls = 2543, calls flagged for inlining = 21, calls inlined = 21, statements flattened = 4826 [2022-10-16 15:40:41,097 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-16 15:40:41,098 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-16 15:40:41,098 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-16 15:40:41,098 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-16 15:40:41,110 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:40:40" (1/1) ... [2022-10-16 15:40:41,110 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:40:40" (1/1) ... [2022-10-16 15:40:41,139 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:40:40" (1/1) ... [2022-10-16 15:40:41,139 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:40:40" (1/1) ... [2022-10-16 15:40:41,354 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:40:40" (1/1) ... [2022-10-16 15:40:41,374 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:40:40" (1/1) ... [2022-10-16 15:40:41,393 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:40:40" (1/1) ... [2022-10-16 15:40:41,412 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:40:40" (1/1) ... [2022-10-16 15:40:41,441 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-16 15:40:41,442 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-16 15:40:41,443 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-16 15:40:41,443 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-16 15:40:41,444 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:40:40" (1/1) ... [2022-10-16 15:40:41,452 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 15:40:41,466 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 15:40:41,484 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 15:40:41,516 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 15:40:41,573 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-16 15:40:41,574 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2022-10-16 15:40:41,574 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2022-10-16 15:40:41,574 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_nxtway_gs_mode [2022-10-16 15:40:41,575 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_nxtway_gs_mode [2022-10-16 15:40:41,575 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-16 15:40:41,575 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2022-10-16 15:40:41,577 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2022-10-16 15:40:41,578 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2022-10-16 15:40:41,578 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2022-10-16 15:40:41,578 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_observer_obstacle_flag [2022-10-16 15:40:41,578 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_observer_obstacle_flag [2022-10-16 15:40:41,578 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_obstacle_flag [2022-10-16 15:40:41,578 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_obstacle_flag [2022-10-16 15:40:41,578 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-16 15:40:41,579 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2022-10-16 15:40:41,579 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2022-10-16 15:40:41,631 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_gyro_sensor [2022-10-16 15:40:41,631 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_gyro_sensor [2022-10-16 15:40:41,631 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts1 [2022-10-16 15:40:41,631 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts1 [2022-10-16 15:40:41,631 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts2 [2022-10-16 15:40:41,631 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts2 [2022-10-16 15:40:41,632 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-16 15:40:41,632 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_hyperperiod [2022-10-16 15:40:41,632 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_hyperperiod [2022-10-16 15:40:41,632 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_Background [2022-10-16 15:40:41,632 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_Background [2022-10-16 15:40:41,632 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-16 15:40:41,632 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2022-10-16 15:40:41,633 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2022-10-16 15:40:41,633 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_speed [2022-10-16 15:40:41,633 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_speed [2022-10-16 15:40:41,633 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_obstacle_flag [2022-10-16 15:40:41,633 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_obstacle_flag [2022-10-16 15:40:41,633 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-10-16 15:40:41,633 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-10-16 15:40:41,634 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-16 15:40:41,634 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-16 15:40:41,634 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-16 15:40:41,634 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_systick_ms [2022-10-16 15:40:41,634 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_systick_ms [2022-10-16 15:40:41,634 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2022-10-16 15:40:41,634 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2022-10-16 15:40:41,635 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtway_gs_mode [2022-10-16 15:40:41,635 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtway_gs_mode [2022-10-16 15:40:42,204 INFO L235 CfgBuilder]: Building ICFG [2022-10-16 15:40:42,207 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-16 15:40:51,375 INFO L276 CfgBuilder]: Performing block encoding [2022-10-16 15:40:51,398 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-16 15:40:51,399 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-10-16 15:40:51,404 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 03:40:51 BoogieIcfgContainer [2022-10-16 15:40:51,404 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-16 15:40:51,408 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-16 15:40:51,408 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-16 15:40:51,412 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-16 15:40:51,412 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 03:40:39" (1/3) ... [2022-10-16 15:40:51,413 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e9a0e1f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 03:40:51, skipping insertion in model container [2022-10-16 15:40:51,413 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:40:40" (2/3) ... [2022-10-16 15:40:51,414 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e9a0e1f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 03:40:51, skipping insertion in model container [2022-10-16 15:40:51,414 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 03:40:51" (3/3) ... [2022-10-16 15:40:51,416 INFO L112 eAbstractionObserver]: Analyzing ICFG rekh_nxt.2.M4-2.c [2022-10-16 15:40:51,439 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-16 15:40:51,440 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 12 error locations. [2022-10-16 15:40:51,568 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-16 15:40:51,577 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;@163e9f9f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-16 15:40:51,577 INFO L358 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2022-10-16 15:40:51,591 INFO L276 IsEmpty]: Start isEmpty. Operand has 1967 states, 1161 states have (on average 1.2101636520241172) internal successors, (1405), 1177 states have internal predecessors, (1405), 774 states have call successors, (774), 19 states have call predecessors, (774), 19 states have return successors, (774), 772 states have call predecessors, (774), 774 states have call successors, (774) [2022-10-16 15:40:51,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1291 [2022-10-16 15:40:51,744 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 15:40:51,746 INFO L195 NwaCegarLoop]: trace histogram [208, 208, 208, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:40:51,747 INFO L420 AbstractCegarLoop]: === Iteration 1 === 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 10 more)] === [2022-10-16 15:40:51,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 15:40:51,755 INFO L85 PathProgramCache]: Analyzing trace with hash -980380261, now seen corresponding path program 1 times [2022-10-16 15:40:51,767 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 15:40:51,767 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [192389040] [2022-10-16 15:40:51,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 15:40:51,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms