/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.1.M1-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-16 15:39:19,537 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-16 15:39:19,541 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-16 15:39:19,602 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-16 15:39:19,603 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-16 15:39:19,608 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-16 15:39:19,613 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-16 15:39:19,623 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-16 15:39:19,626 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-16 15:39:19,633 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-16 15:39:19,635 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-16 15:39:19,639 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-16 15:39:19,639 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-16 15:39:19,642 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-16 15:39:19,644 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-16 15:39:19,650 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-16 15:39:19,651 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-16 15:39:19,662 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-16 15:39:19,666 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-16 15:39:19,673 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-16 15:39:19,679 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-16 15:39:19,680 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-16 15:39:19,681 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-16 15:39:19,685 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-16 15:39:19,695 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-16 15:39:19,695 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-16 15:39:19,695 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-16 15:39:19,697 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-16 15:39:19,699 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-16 15:39:19,701 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-16 15:39:19,701 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-16 15:39:19,702 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-16 15:39:19,704 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-16 15:39:19,704 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-16 15:39:19,706 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-16 15:39:19,706 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-16 15:39:19,707 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-16 15:39:19,707 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-16 15:39:19,707 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-16 15:39:19,708 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-16 15:39:19,709 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-16 15:39:19,710 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 15:39:19,744 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-16 15:39:19,744 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-16 15:39:19,745 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-16 15:39:19,745 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-16 15:39:19,746 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-16 15:39:19,746 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-16 15:39:19,747 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-16 15:39:19,747 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-16 15:39:19,747 INFO L138 SettingsManager]: * Use SBE=true [2022-10-16 15:39:19,747 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-16 15:39:19,747 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-16 15:39:19,748 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-16 15:39:19,748 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-16 15:39:19,748 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-16 15:39:19,748 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-16 15:39:19,748 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-16 15:39:19,748 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-16 15:39:19,749 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-16 15:39:19,749 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-16 15:39:19,749 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-16 15:39:19,749 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-16 15:39:19,749 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-16 15:39:19,750 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-16 15:39:19,750 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-16 15:39:19,750 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-16 15:39:19,750 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-16 15:39:19,750 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 15:39:19,751 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-16 15:39:19,751 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-16 15:39:19,751 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-16 15:39:19,751 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-16 15:39:19,751 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-16 15:39:19,752 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-16 15:39:19,752 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-16 15:39:20,150 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-16 15:39:20,182 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-16 15:39:20,186 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-16 15:39:20,188 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-16 15:39:20,189 INFO L275 PluginConnector]: CDTParser initialized [2022-10-16 15:39:20,191 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded/rekh_nxt.1.M1-2.c [2022-10-16 15:39:20,273 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fc1e15ada/6f5938631b50433a88417fa59ca51f9d/FLAGbb287a3d6 [2022-10-16 15:39:21,103 INFO L306 CDTParser]: Found 1 translation units. [2022-10-16 15:39:21,104 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/rekh_nxt.1.M1-2.c [2022-10-16 15:39:21,128 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fc1e15ada/6f5938631b50433a88417fa59ca51f9d/FLAGbb287a3d6 [2022-10-16 15:39:21,266 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fc1e15ada/6f5938631b50433a88417fa59ca51f9d [2022-10-16 15:39:21,269 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-16 15:39:21,274 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-16 15:39:21,277 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-16 15:39:21,278 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-16 15:39:21,282 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-16 15:39:21,283 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 03:39:21" (1/1) ... [2022-10-16 15:39:21,284 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@26d73057 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:39:21, skipping insertion in model container [2022-10-16 15:39:21,284 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 03:39:21" (1/1) ... [2022-10-16 15:39:21,293 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-16 15:39:21,369 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-16 15:39:21,561 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.1.M1-2.c[1509,1522] [2022-10-16 15:39:22,150 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 15:39:22,201 INFO L203 MainTranslator]: Completed pre-run [2022-10-16 15:39:22,219 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.1.M1-2.c[1509,1522] [2022-10-16 15:39:22,384 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 15:39:22,410 INFO L208 MainTranslator]: Completed translation [2022-10-16 15:39:22,410 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:39:22 WrapperNode [2022-10-16 15:39:22,411 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-16 15:39:22,412 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-16 15:39:22,412 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-16 15:39:22,412 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-16 15:39:22,422 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:39:22" (1/1) ... [2022-10-16 15:39:22,490 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:39:22" (1/1) ... [2022-10-16 15:39:22,690 INFO L138 Inliner]: procedures = 55, calls = 2033, calls flagged for inlining = 22, calls inlined = 22, statements flattened = 3958 [2022-10-16 15:39:22,691 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-16 15:39:22,692 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-16 15:39:22,692 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-16 15:39:22,693 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-16 15:39:22,705 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:39:22" (1/1) ... [2022-10-16 15:39:22,706 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:39:22" (1/1) ... [2022-10-16 15:39:22,744 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:39:22" (1/1) ... [2022-10-16 15:39:22,745 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:39:22" (1/1) ... [2022-10-16 15:39:22,914 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:39:22" (1/1) ... [2022-10-16 15:39:22,952 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:39:22" (1/1) ... [2022-10-16 15:39:22,972 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:39:22" (1/1) ... [2022-10-16 15:39:22,997 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:39:22" (1/1) ... [2022-10-16 15:39:23,031 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-16 15:39:23,032 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-16 15:39:23,032 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-16 15:39:23,033 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-16 15:39:23,034 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:39:22" (1/1) ... [2022-10-16 15:39:23,043 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 15:39:23,056 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 15:39:23,074 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 15:39:23,087 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 15:39:23,140 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-16 15:39:23,140 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2022-10-16 15:39:23,141 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2022-10-16 15:39:23,141 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_nxtway_gs_mode [2022-10-16 15:39:23,141 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_nxtway_gs_mode [2022-10-16 15:39:23,141 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-16 15:39:23,141 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2022-10-16 15:39:23,142 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2022-10-16 15:39:23,142 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2022-10-16 15:39:23,142 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2022-10-16 15:39:23,142 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_obstacle_flag [2022-10-16 15:39:23,142 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_obstacle_flag [2022-10-16 15:39:23,143 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-16 15:39:23,143 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2022-10-16 15:39:23,143 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2022-10-16 15:39:23,143 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_gyro_sensor [2022-10-16 15:39:23,144 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_gyro_sensor [2022-10-16 15:39:23,144 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts1 [2022-10-16 15:39:23,203 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts1 [2022-10-16 15:39:23,203 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts2 [2022-10-16 15:39:23,203 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts2 [2022-10-16 15:39:23,204 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-16 15:39:23,204 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_Background [2022-10-16 15:39:23,204 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_Background [2022-10-16 15:39:23,204 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-16 15:39:23,204 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_speed [2022-10-16 15:39:23,204 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_speed [2022-10-16 15:39:23,205 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-10-16 15:39:23,205 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-10-16 15:39:23,205 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-16 15:39:23,205 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-16 15:39:23,205 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-16 15:39:23,205 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_systick_ms [2022-10-16 15:39:23,208 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_systick_ms [2022-10-16 15:39:23,208 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2022-10-16 15:39:23,208 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2022-10-16 15:39:23,208 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtway_gs_mode [2022-10-16 15:39:23,209 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtway_gs_mode [2022-10-16 15:39:23,780 INFO L235 CfgBuilder]: Building ICFG [2022-10-16 15:39:23,783 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-16 15:39:31,443 INFO L276 CfgBuilder]: Performing block encoding [2022-10-16 15:39:31,465 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-16 15:39:31,466 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-10-16 15:39:31,471 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 03:39:31 BoogieIcfgContainer [2022-10-16 15:39:31,472 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-16 15:39:31,475 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-16 15:39:31,475 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-16 15:39:31,479 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-16 15:39:31,479 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 03:39:21" (1/3) ... [2022-10-16 15:39:31,480 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a97ad15 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 03:39:31, skipping insertion in model container [2022-10-16 15:39:31,480 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:39:22" (2/3) ... [2022-10-16 15:39:31,481 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a97ad15 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 03:39:31, skipping insertion in model container [2022-10-16 15:39:31,481 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 03:39:31" (3/3) ... [2022-10-16 15:39:31,483 INFO L112 eAbstractionObserver]: Analyzing ICFG rekh_nxt.1.M1-2.c [2022-10-16 15:39:31,507 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-16 15:39:31,507 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 12 error locations. [2022-10-16 15:39:31,644 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-16 15:39:31,654 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;@7579a0f2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-16 15:39:31,655 INFO L358 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2022-10-16 15:39:31,668 INFO L276 IsEmpty]: Start isEmpty. Operand has 1620 states, 981 states have (on average 1.2375127420998981) internal successors, (1214), 997 states have internal predecessors, (1214), 611 states have call successors, (611), 15 states have call predecessors, (611), 15 states have return successors, (611), 609 states have call predecessors, (611), 611 states have call successors, (611) [2022-10-16 15:39:31,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1289 [2022-10-16 15:39:31,793 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 15:39:31,796 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 15:39:31,797 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 15:39:31,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 15:39:31,808 INFO L85 PathProgramCache]: Analyzing trace with hash -896038681, now seen corresponding path program 1 times [2022-10-16 15:39:31,820 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 15:39:31,821 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [410581095] [2022-10-16 15:39:31,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 15:39:31,822 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms