/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.M4-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-16 15:34:40,128 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-16 15:34:40,130 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-16 15:34:40,164 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-16 15:34:40,165 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-16 15:34:40,166 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-16 15:34:40,168 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-16 15:34:40,185 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-16 15:34:40,187 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-16 15:34:40,188 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-16 15:34:40,190 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-16 15:34:40,191 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-16 15:34:40,192 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-16 15:34:40,193 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-16 15:34:40,194 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-16 15:34:40,195 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-16 15:34:40,196 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-16 15:34:40,197 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-16 15:34:40,199 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-16 15:34:40,202 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-16 15:34:40,203 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-16 15:34:40,205 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-16 15:34:40,206 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-16 15:34:40,207 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-16 15:34:40,212 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-16 15:34:40,212 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-16 15:34:40,212 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-16 15:34:40,213 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-16 15:34:40,214 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-16 15:34:40,215 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-16 15:34:40,216 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-16 15:34:40,217 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-16 15:34:40,218 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-16 15:34:40,218 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-16 15:34:40,220 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-16 15:34:40,220 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-16 15:34:40,221 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-16 15:34:40,222 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-16 15:34:40,222 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-16 15:34:40,223 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-16 15:34:40,224 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-16 15:34:40,225 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 15:34:40,251 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-16 15:34:40,252 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-16 15:34:40,252 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-16 15:34:40,252 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-16 15:34:40,253 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-16 15:34:40,254 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-16 15:34:40,254 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-16 15:34:40,255 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-16 15:34:40,255 INFO L138 SettingsManager]: * Use SBE=true [2022-10-16 15:34:40,255 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-16 15:34:40,256 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-16 15:34:40,256 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-16 15:34:40,256 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-16 15:34:40,256 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-16 15:34:40,257 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-16 15:34:40,257 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-16 15:34:40,257 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-16 15:34:40,258 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-16 15:34:40,258 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-16 15:34:40,258 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-16 15:34:40,260 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-16 15:34:40,260 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-16 15:34:40,261 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-16 15:34:40,261 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-16 15:34:40,261 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-16 15:34:40,261 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-16 15:34:40,262 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 15:34:40,263 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-16 15:34:40,263 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-16 15:34:40,263 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-16 15:34:40,263 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-16 15:34:40,264 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-16 15:34:40,264 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-16 15:34:40,265 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-16 15:34:40,641 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-16 15:34:40,667 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-16 15:34:40,670 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-16 15:34:40,671 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-16 15:34:40,672 INFO L275 PluginConnector]: CDTParser initialized [2022-10-16 15:34:40,673 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded/rekcba_nxt.2.M4-1.c [2022-10-16 15:34:40,739 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ad899fb13/43db9b3f65c44b218912fd24776e33b3/FLAG4ba2f1a6f [2022-10-16 15:34:41,822 INFO L306 CDTParser]: Found 1 translation units. [2022-10-16 15:34:41,823 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/rekcba_nxt.2.M4-1.c [2022-10-16 15:34:41,905 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ad899fb13/43db9b3f65c44b218912fd24776e33b3/FLAG4ba2f1a6f [2022-10-16 15:34:42,164 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ad899fb13/43db9b3f65c44b218912fd24776e33b3 [2022-10-16 15:34:42,169 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-16 15:34:42,174 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-16 15:34:42,176 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-16 15:34:42,176 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-16 15:34:42,181 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-16 15:34:42,181 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 03:34:42" (1/1) ... [2022-10-16 15:34:42,183 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@66bb3838 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:34:42, skipping insertion in model container [2022-10-16 15:34:42,183 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 03:34:42" (1/1) ... [2022-10-16 15:34:42,191 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-16 15:34:42,414 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-16 15:34:42,755 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.M4-1.c[2195,2208] [2022-10-16 15:34:44,058 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 15:34:44,089 INFO L203 MainTranslator]: Completed pre-run [2022-10-16 15:34:44,115 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.M4-1.c[2195,2208] [2022-10-16 15:34:45,166 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 15:34:45,211 INFO L208 MainTranslator]: Completed translation [2022-10-16 15:34:45,212 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:34:45 WrapperNode [2022-10-16 15:34:45,212 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-16 15:34:45,214 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-16 15:34:45,214 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-16 15:34:45,214 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-16 15:34:45,223 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:34:45" (1/1) ... [2022-10-16 15:34:45,721 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:34:45" (1/1) ... [2022-10-16 15:34:47,302 INFO L138 Inliner]: procedures = 58, calls = 18195, calls flagged for inlining = 24, calls inlined = 24, statements flattened = 40074 [2022-10-16 15:34:47,303 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-16 15:34:47,307 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-16 15:34:47,307 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-16 15:34:47,307 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-16 15:34:47,329 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:34:45" (1/1) ... [2022-10-16 15:34:47,329 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:34:45" (1/1) ... [2022-10-16 15:34:47,757 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:34:45" (1/1) ... [2022-10-16 15:34:47,758 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:34:45" (1/1) ... [2022-10-16 15:34:48,965 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:34:45" (1/1) ... [2022-10-16 15:34:49,169 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:34:45" (1/1) ... [2022-10-16 15:34:49,236 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:34:45" (1/1) ... [2022-10-16 15:34:49,345 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:34:45" (1/1) ... [2022-10-16 15:34:49,502 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-16 15:34:49,504 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-16 15:34:49,504 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-16 15:34:49,504 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-16 15:34:49,505 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:34:45" (1/1) ... [2022-10-16 15:34:49,513 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 15:34:49,527 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 15:34:49,544 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 15:34:49,570 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 15:34:49,611 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-16 15:34:49,611 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2022-10-16 15:34:49,612 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2022-10-16 15:34:49,612 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_nxtway_gs_mode [2022-10-16 15:34:49,612 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_nxtway_gs_mode [2022-10-16 15:34:49,612 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-16 15:34:49,612 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2022-10-16 15:34:49,612 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2022-10-16 15:34:49,613 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2022-10-16 15:34:49,613 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2022-10-16 15:34:49,613 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_obstacle_flag [2022-10-16 15:34:49,613 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_obstacle_flag [2022-10-16 15:34:49,613 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-16 15:34:49,613 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2022-10-16 15:34:49,613 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2022-10-16 15:34:49,613 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_gyro_sensor [2022-10-16 15:34:49,614 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_gyro_sensor [2022-10-16 15:34:49,614 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts1 [2022-10-16 15:34:49,614 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts1 [2022-10-16 15:34:49,614 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts2 [2022-10-16 15:34:49,614 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts2 [2022-10-16 15:34:49,614 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-16 15:34:49,614 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_Background [2022-10-16 15:34:49,614 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_Background [2022-10-16 15:34:49,615 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-16 15:34:49,615 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2022-10-16 15:34:49,615 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2022-10-16 15:34:49,615 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_speed [2022-10-16 15:34:49,615 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_speed [2022-10-16 15:34:49,615 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-10-16 15:34:49,615 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-10-16 15:34:49,616 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-16 15:34:49,616 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-16 15:34:49,616 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-16 15:34:49,616 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_systick_ms [2022-10-16 15:34:49,616 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_systick_ms [2022-10-16 15:34:49,616 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2022-10-16 15:34:49,616 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2022-10-16 15:34:49,704 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtway_gs_mode [2022-10-16 15:34:49,704 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtway_gs_mode [2022-10-16 15:34:51,355 INFO L235 CfgBuilder]: Building ICFG [2022-10-16 15:34:51,357 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-16 15:35:35,929 INFO L276 CfgBuilder]: Performing block encoding [2022-10-16 15:35:35,999 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-16 15:35:35,999 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-10-16 15:35:36,017 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 03:35:36 BoogieIcfgContainer [2022-10-16 15:35:36,017 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-16 15:35:36,021 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-16 15:35:36,022 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-16 15:35:36,026 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-16 15:35:36,027 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 03:34:42" (1/3) ... [2022-10-16 15:35:36,027 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@141bdd84 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 03:35:36, skipping insertion in model container [2022-10-16 15:35:36,028 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:34:45" (2/3) ... [2022-10-16 15:35:36,028 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@141bdd84 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 03:35:36, skipping insertion in model container [2022-10-16 15:35:36,028 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 03:35:36" (3/3) ... [2022-10-16 15:35:36,034 INFO L112 eAbstractionObserver]: Analyzing ICFG rekcba_nxt.2.M4-1.c [2022-10-16 15:35:36,058 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-16 15:35:36,058 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 222 error locations. [2022-10-16 15:35:36,383 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-16 15:35:36,391 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;@1849f604, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-16 15:35:36,391 INFO L358 AbstractCegarLoop]: Starting to check reachability of 222 error locations. [2022-10-16 15:35:36,441 INFO L276 IsEmpty]: Start isEmpty. Operand has 12683 states, 8218 states have (on average 1.3340228766123143) internal successors, (10963), 8552 states have internal predecessors, (10963), 4226 states have call successors, (4226), 16 states have call predecessors, (4226), 16 states have return successors, (4226), 4224 states have call predecessors, (4226), 4226 states have call successors, (4226) [2022-10-16 15:35:36,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-10-16 15:35:36,453 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 15:35:36,454 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 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 15:35:36,455 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 220 more)] === [2022-10-16 15:35:36,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 15:35:36,463 INFO L85 PathProgramCache]: Analyzing trace with hash -1799166534, now seen corresponding path program 1 times [2022-10-16 15:35:36,473 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 15:35:36,474 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [814806755] [2022-10-16 15:35:36,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 15:35:36,475 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 15:35:37,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:35:37,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 15:35:37,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:35:37,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-16 15:35:37,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:35:37,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-10-16 15:35:37,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:35:37,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-10-16 15:35:37,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:35:37,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-10-16 15:35:37,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:35:37,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-10-16 15:35:37,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:35:37,682 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-10-16 15:35:37,683 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 15:35:37,683 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [814806755] [2022-10-16 15:35:37,685 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [814806755] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 15:35:37,685 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 15:35:37,686 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-16 15:35:37,687 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1621623559] [2022-10-16 15:35:37,688 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 15:35:37,695 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-10-16 15:35:37,696 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 15:35:37,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-10-16 15:35:37,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-10-16 15:35:37,785 INFO L87 Difference]: Start difference. First operand has 12683 states, 8218 states have (on average 1.3340228766123143) internal successors, (10963), 8552 states have internal predecessors, (10963), 4226 states have call successors, (4226), 16 states have call predecessors, (4226), 16 states have return successors, (4226), 4224 states have call predecessors, (4226), 4226 states have call successors, (4226) Second operand has 2 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 2 states have call successors, (6) [2022-10-16 15:35:38,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 15:35:38,593 INFO L93 Difference]: Finished difference Result 25149 states and 43034 transitions. [2022-10-16 15:35:38,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-16 15:35:38,598 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 2 states have call successors, (6) Word has length 41 [2022-10-16 15:35:38,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 15:35:38,740 INFO L225 Difference]: With dead ends: 25149 [2022-10-16 15:35:38,740 INFO L226 Difference]: Without dead ends: 11811 [2022-10-16 15:35:38,868 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 20 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 15:35:38,873 INFO L413 NwaCegarLoop]: 19200 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, 19200 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 15:35:38,876 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 19200 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 15:35:38,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11811 states. [2022-10-16 15:35:46,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11811 to 11811. [2022-10-16 15:35:46,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11811 states, 7883 states have (on average 1.3206900926043383) internal successors, (10411), 8004 states have internal predecessors, (10411), 3903 states have call successors, (3903), 15 states have call predecessors, (3903), 15 states have return successors, (3902), 3900 states have call predecessors, (3902), 3902 states have call successors, (3902) [2022-10-16 15:35:46,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11811 states to 11811 states and 18216 transitions. [2022-10-16 15:35:46,764 INFO L78 Accepts]: Start accepts. Automaton has 11811 states and 18216 transitions. Word has length 41 [2022-10-16 15:35:46,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 15:35:46,765 INFO L495 AbstractCegarLoop]: Abstraction has 11811 states and 18216 transitions. [2022-10-16 15:35:46,767 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 2 states have call successors, (6) [2022-10-16 15:35:46,767 INFO L276 IsEmpty]: Start isEmpty. Operand 11811 states and 18216 transitions. [2022-10-16 15:35:47,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3361 [2022-10-16 15:35:47,184 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 15:35:47,189 INFO L195 NwaCegarLoop]: trace histogram [123, 123, 123, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:35:47,190 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-16 15:35:47,191 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 220 more)] === [2022-10-16 15:35:47,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 15:35:47,193 INFO L85 PathProgramCache]: Analyzing trace with hash -331501214, now seen corresponding path program 1 times [2022-10-16 15:35:47,196 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 15:35:47,203 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [493449331] [2022-10-16 15:35:47,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 15:35:47,206 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms