/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.M1-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-16 15:39:45,638 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-16 15:39:45,641 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-16 15:39:45,691 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-16 15:39:45,692 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-16 15:39:45,696 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-16 15:39:45,700 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-16 15:39:45,709 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-16 15:39:45,712 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-16 15:39:45,721 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-16 15:39:45,722 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-16 15:39:45,725 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-16 15:39:45,726 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-16 15:39:45,727 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-16 15:39:45,728 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-16 15:39:45,730 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-16 15:39:45,731 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-16 15:39:45,732 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-16 15:39:45,734 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-16 15:39:45,736 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-16 15:39:45,738 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-16 15:39:45,739 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-16 15:39:45,741 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-16 15:39:45,742 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-16 15:39:45,746 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-16 15:39:45,747 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-16 15:39:45,747 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-16 15:39:45,748 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-16 15:39:45,749 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-16 15:39:45,750 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-16 15:39:45,750 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-16 15:39:45,751 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-16 15:39:45,752 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-16 15:39:45,753 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-16 15:39:45,754 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-16 15:39:45,754 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-16 15:39:45,755 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-16 15:39:45,756 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-16 15:39:45,756 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-16 15:39:45,757 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-16 15:39:45,758 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-16 15:39:45,759 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 15:39:45,788 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-16 15:39:45,789 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-16 15:39:45,789 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-16 15:39:45,789 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-16 15:39:45,790 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-16 15:39:45,790 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-16 15:39:45,791 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-16 15:39:45,791 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-16 15:39:45,792 INFO L138 SettingsManager]: * Use SBE=true [2022-10-16 15:39:45,792 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-16 15:39:45,792 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-16 15:39:45,792 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-16 15:39:45,793 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-16 15:39:45,793 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-16 15:39:45,793 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-16 15:39:45,793 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-16 15:39:45,793 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-16 15:39:45,794 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-16 15:39:45,794 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-16 15:39:45,794 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-16 15:39:45,794 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-16 15:39:45,794 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-16 15:39:45,795 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-16 15:39:45,795 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-16 15:39:45,795 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-16 15:39:45,795 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-16 15:39:45,796 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 15:39:45,796 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-16 15:39:45,796 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-16 15:39:45,796 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-16 15:39:45,796 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-16 15:39:45,797 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-16 15:39:45,797 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-16 15:39:45,797 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-16 15:39:46,247 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-16 15:39:46,277 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-16 15:39:46,282 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-16 15:39:46,284 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-16 15:39:46,285 INFO L275 PluginConnector]: CDTParser initialized [2022-10-16 15:39:46,286 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded/rekh_nxt.2.M1-2.c [2022-10-16 15:39:46,377 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/312058ce5/a04b9360abef44009f0be9e99c05c259/FLAG94c21ff5f [2022-10-16 15:39:47,172 INFO L306 CDTParser]: Found 1 translation units. [2022-10-16 15:39:47,173 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/rekh_nxt.2.M1-2.c [2022-10-16 15:39:47,203 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/312058ce5/a04b9360abef44009f0be9e99c05c259/FLAG94c21ff5f [2022-10-16 15:39:47,308 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/312058ce5/a04b9360abef44009f0be9e99c05c259 [2022-10-16 15:39:47,313 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-16 15:39:47,322 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-16 15:39:47,325 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-16 15:39:47,325 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-16 15:39:47,333 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-16 15:39:47,335 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 03:39:47" (1/1) ... [2022-10-16 15:39:47,337 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11a08ecc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:39:47, skipping insertion in model container [2022-10-16 15:39:47,337 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 03:39:47" (1/1) ... [2022-10-16 15:39:47,346 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-16 15:39:47,448 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-16 15:39:47,751 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.M1-2.c[1682,1695] [2022-10-16 15:39:48,250 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 15:39:48,263 INFO L203 MainTranslator]: Completed pre-run [2022-10-16 15:39:48,279 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.M1-2.c[1682,1695] [2022-10-16 15:39:48,460 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 15:39:48,486 INFO L208 MainTranslator]: Completed translation [2022-10-16 15:39:48,487 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:39:48 WrapperNode [2022-10-16 15:39:48,487 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-16 15:39:48,488 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-16 15:39:48,488 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-16 15:39:48,488 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-16 15:39:48,497 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:39:48" (1/1) ... [2022-10-16 15:39:48,556 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:39:48" (1/1) ... [2022-10-16 15:39:48,754 INFO L138 Inliner]: procedures = 56, calls = 2059, calls flagged for inlining = 22, calls inlined = 22, statements flattened = 4022 [2022-10-16 15:39:48,755 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-16 15:39:48,756 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-16 15:39:48,756 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-16 15:39:48,756 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-16 15:39:48,768 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:39:48" (1/1) ... [2022-10-16 15:39:48,768 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:39:48" (1/1) ... [2022-10-16 15:39:48,791 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:39:48" (1/1) ... [2022-10-16 15:39:48,792 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:39:48" (1/1) ... [2022-10-16 15:39:48,935 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:39:48" (1/1) ... [2022-10-16 15:39:48,963 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:39:48" (1/1) ... [2022-10-16 15:39:48,985 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:39:48" (1/1) ... [2022-10-16 15:39:49,006 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:39:48" (1/1) ... [2022-10-16 15:39:49,040 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-16 15:39:49,041 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-16 15:39:49,042 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-16 15:39:49,042 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-16 15:39:49,044 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:39:48" (1/1) ... [2022-10-16 15:39:49,052 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 15:39:49,064 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 15:39:49,080 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 15:39:49,154 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 15:39:49,241 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-16 15:39:49,241 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2022-10-16 15:39:49,241 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2022-10-16 15:39:49,242 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_nxtway_gs_mode [2022-10-16 15:39:49,242 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_nxtway_gs_mode [2022-10-16 15:39:49,242 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-16 15:39:49,242 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2022-10-16 15:39:49,245 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2022-10-16 15:39:49,245 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2022-10-16 15:39:49,245 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2022-10-16 15:39:49,245 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_obstacle_flag [2022-10-16 15:39:49,245 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_obstacle_flag [2022-10-16 15:39:49,246 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-16 15:39:49,246 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2022-10-16 15:39:49,246 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2022-10-16 15:39:49,246 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_gyro_sensor [2022-10-16 15:39:49,246 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_gyro_sensor [2022-10-16 15:39:49,246 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts1 [2022-10-16 15:39:49,247 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts1 [2022-10-16 15:39:49,247 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts2 [2022-10-16 15:39:49,247 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts2 [2022-10-16 15:39:49,247 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-16 15:39:49,247 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_Background [2022-10-16 15:39:49,248 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_Background [2022-10-16 15:39:49,248 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-16 15:39:49,248 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2022-10-16 15:39:49,248 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2022-10-16 15:39:49,248 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_speed [2022-10-16 15:39:49,248 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_speed [2022-10-16 15:39:49,249 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-10-16 15:39:49,249 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-10-16 15:39:49,249 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-16 15:39:49,249 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-16 15:39:49,249 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-16 15:39:49,250 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_systick_ms [2022-10-16 15:39:49,250 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_systick_ms [2022-10-16 15:39:49,250 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2022-10-16 15:39:49,250 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2022-10-16 15:39:49,250 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtway_gs_mode [2022-10-16 15:39:49,250 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtway_gs_mode [2022-10-16 15:39:49,799 INFO L235 CfgBuilder]: Building ICFG [2022-10-16 15:39:49,802 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-16 15:39:57,835 INFO L276 CfgBuilder]: Performing block encoding [2022-10-16 15:39:57,858 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-16 15:39:57,858 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-10-16 15:39:57,863 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 03:39:57 BoogieIcfgContainer [2022-10-16 15:39:57,864 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-16 15:39:57,867 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-16 15:39:57,867 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-16 15:39:57,871 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-16 15:39:57,871 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 03:39:47" (1/3) ... [2022-10-16 15:39:57,872 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24a66de8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 03:39:57, skipping insertion in model container [2022-10-16 15:39:57,872 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:39:48" (2/3) ... [2022-10-16 15:39:57,873 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24a66de8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 03:39:57, skipping insertion in model container [2022-10-16 15:39:57,873 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 03:39:57" (3/3) ... [2022-10-16 15:39:57,875 INFO L112 eAbstractionObserver]: Analyzing ICFG rekh_nxt.2.M1-2.c [2022-10-16 15:39:57,897 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-16 15:39:57,898 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 12 error locations. [2022-10-16 15:39:58,000 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-16 15:39:58,009 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;@382fb843, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-16 15:39:58,010 INFO L358 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2022-10-16 15:39:58,023 INFO L276 IsEmpty]: Start isEmpty. Operand has 1678 states, 1011 states have (on average 1.2344213649851632) internal successors, (1248), 1027 states have internal predecessors, (1248), 638 states have call successors, (638), 16 states have call predecessors, (638), 16 states have return successors, (638), 636 states have call predecessors, (638), 638 states have call successors, (638) [2022-10-16 15:39:58,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1289 [2022-10-16 15:39:58,118 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 15:39:58,120 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] [2022-10-16 15:39:58,120 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 15:39:58,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 15:39:58,128 INFO L85 PathProgramCache]: Analyzing trace with hash 1773448812, now seen corresponding path program 1 times [2022-10-16 15:39:58,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 15:39:58,140 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1958254721] [2022-10-16 15:39:58,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 15:39:58,141 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms