./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/seq-mthreaded/rekh_aso.1.M4-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/seq-mthreaded/rekh_aso.1.M4-1.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 6591ce47dfe4224cb6f7a03e7ab6e8c9fb535aeaf619e89bc0784a15f3516b25 --- Real Ultimate output --- This is Ultimate 0.2.2-839c364b5d67a0f615c82cb70ab247790648d4a9-839c364 [2021-12-14 15:05:23,168 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-14 15:05:23,172 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-14 15:05:23,222 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-14 15:05:23,222 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-14 15:05:23,225 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-14 15:05:23,226 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-14 15:05:23,230 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-14 15:05:23,232 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-14 15:05:23,238 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-14 15:05:23,239 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-14 15:05:23,241 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-14 15:05:23,241 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-14 15:05:23,244 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-14 15:05:23,246 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-14 15:05:23,252 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-14 15:05:23,254 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-14 15:05:23,255 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-14 15:05:23,257 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-14 15:05:23,264 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-14 15:05:23,266 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-14 15:05:23,267 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-14 15:05:23,269 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-14 15:05:23,270 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-14 15:05:23,277 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-14 15:05:23,278 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-14 15:05:23,278 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-14 15:05:23,280 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-14 15:05:23,281 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-14 15:05:23,282 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-14 15:05:23,282 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-14 15:05:23,283 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-14 15:05:23,285 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-14 15:05:23,286 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-14 15:05:23,287 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-14 15:05:23,287 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-14 15:05:23,288 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-14 15:05:23,288 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-14 15:05:23,289 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-14 15:05:23,291 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-14 15:05:23,291 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-14 15:05:23,292 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-14 15:05:23,326 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-14 15:05:23,326 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-14 15:05:23,327 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-14 15:05:23,327 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-14 15:05:23,329 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-14 15:05:23,329 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-14 15:05:23,330 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-14 15:05:23,330 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-14 15:05:23,330 INFO L138 SettingsManager]: * Use SBE=true [2021-12-14 15:05:23,330 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-14 15:05:23,331 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-14 15:05:23,332 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-14 15:05:23,332 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-14 15:05:23,332 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-14 15:05:23,332 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-14 15:05:23,332 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-14 15:05:23,333 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-14 15:05:23,333 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-14 15:05:23,333 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-14 15:05:23,333 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-14 15:05:23,333 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-14 15:05:23,334 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-14 15:05:23,334 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-14 15:05:23,334 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-14 15:05:23,334 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-14 15:05:23,334 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-14 15:05:23,335 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-14 15:05:23,336 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-14 15:05:23,336 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-14 15:05:23,336 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-14 15:05:23,337 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-14 15:05:23,337 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-14 15:05:23,337 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-14 15:05:23,338 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-14 15:05:23,338 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6591ce47dfe4224cb6f7a03e7ab6e8c9fb535aeaf619e89bc0784a15f3516b25 [2021-12-14 15:05:23,622 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-14 15:05:23,653 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-14 15:05:23,655 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-14 15:05:23,657 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-14 15:05:23,657 INFO L275 PluginConnector]: CDTParser initialized [2021-12-14 15:05:23,659 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded/rekh_aso.1.M4-1.c [2021-12-14 15:05:23,747 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2aff4f7c3/a4f302ac4e074153b4116085e7f9da38/FLAG93c0e4eb4 [2021-12-14 15:05:24,430 INFO L306 CDTParser]: Found 1 translation units. [2021-12-14 15:05:24,431 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/rekh_aso.1.M4-1.c [2021-12-14 15:05:24,457 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2aff4f7c3/a4f302ac4e074153b4116085e7f9da38/FLAG93c0e4eb4 [2021-12-14 15:05:24,632 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2aff4f7c3/a4f302ac4e074153b4116085e7f9da38 [2021-12-14 15:05:24,635 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-14 15:05:24,637 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-14 15:05:24,642 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-14 15:05:24,643 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-14 15:05:24,645 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-14 15:05:24,646 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 03:05:24" (1/1) ... [2021-12-14 15:05:24,647 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@312b57fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:05:24, skipping insertion in model container [2021-12-14 15:05:24,648 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 03:05:24" (1/1) ... [2021-12-14 15:05:24,653 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-14 15:05:24,731 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-14 15:05:24,904 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_aso.1.M4-1.c[1800,1813] [2021-12-14 15:05:25,219 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-14 15:05:25,236 INFO L203 MainTranslator]: Completed pre-run [2021-12-14 15:05:25,261 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_aso.1.M4-1.c[1800,1813] [2021-12-14 15:05:25,525 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-14 15:05:25,551 INFO L208 MainTranslator]: Completed translation [2021-12-14 15:05:25,552 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:05:25 WrapperNode [2021-12-14 15:05:25,552 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-14 15:05:25,553 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-14 15:05:25,553 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-14 15:05:25,553 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-14 15:05:25,560 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:05:25" (1/1) ... [2021-12-14 15:05:25,653 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:05:25" (1/1) ... [2021-12-14 15:05:25,894 INFO L137 Inliner]: procedures = 60, calls = 3154, calls flagged for inlining = 18, calls inlined = 18, statements flattened = 5973 [2021-12-14 15:05:25,895 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-14 15:05:25,896 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-14 15:05:25,896 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-14 15:05:25,896 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-14 15:05:25,905 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:05:25" (1/1) ... [2021-12-14 15:05:25,905 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:05:25" (1/1) ... [2021-12-14 15:05:25,968 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:05:25" (1/1) ... [2021-12-14 15:05:25,970 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:05:25" (1/1) ... [2021-12-14 15:05:26,103 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:05:25" (1/1) ... [2021-12-14 15:05:26,175 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:05:25" (1/1) ... [2021-12-14 15:05:26,202 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:05:25" (1/1) ... [2021-12-14 15:05:26,234 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-14 15:05:26,235 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-14 15:05:26,236 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-14 15:05:26,236 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-14 15:05:26,238 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:05:25" (1/1) ... [2021-12-14 15:05:26,245 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-14 15:05:26,256 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 15:05:26,277 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) [2021-12-14 15:05:26,307 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 [2021-12-14 15:05:26,334 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-14 15:05:26,334 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_cmd_forward [2021-12-14 15:05:26,334 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_cmd_forward [2021-12-14 15:05:26,335 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2021-12-14 15:05:26,335 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2021-12-14 15:05:26,335 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_nxtway_gs_mode [2021-12-14 15:05:26,335 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_nxtway_gs_mode [2021-12-14 15:05:26,335 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-14 15:05:26,335 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2021-12-14 15:05:26,335 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2021-12-14 15:05:26,336 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2021-12-14 15:05:26,336 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2021-12-14 15:05:26,336 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_obstacle_flag [2021-12-14 15:05:26,336 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_obstacle_flag [2021-12-14 15:05:26,336 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-14 15:05:26,336 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2021-12-14 15:05:26,336 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2021-12-14 15:05:26,337 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_gyro_sensor [2021-12-14 15:05:26,337 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_gyro_sensor [2021-12-14 15:05:26,337 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_cmd_turn [2021-12-14 15:05:26,337 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_cmd_turn [2021-12-14 15:05:26,337 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts1 [2021-12-14 15:05:26,337 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts1 [2021-12-14 15:05:26,337 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts2 [2021-12-14 15:05:26,338 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts2 [2021-12-14 15:05:26,338 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts3 [2021-12-14 15:05:26,338 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts3 [2021-12-14 15:05:26,338 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-14 15:05:26,338 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_hyperperiod [2021-12-14 15:05:26,338 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_hyperperiod [2021-12-14 15:05:26,338 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-14 15:05:26,339 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2021-12-14 15:05:26,339 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2021-12-14 15:05:26,339 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_speed [2021-12-14 15:05:26,339 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_speed [2021-12-14 15:05:26,340 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_cmd_forward [2021-12-14 15:05:26,340 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_cmd_forward [2021-12-14 15:05:26,340 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_obstacle_flag [2021-12-14 15:05:26,340 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_obstacle_flag [2021-12-14 15:05:26,340 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-14 15:05:26,340 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-14 15:05:26,340 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-14 15:05:26,341 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-14 15:05:26,341 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-14 15:05:26,341 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_systick_ms [2021-12-14 15:05:26,341 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_systick_ms [2021-12-14 15:05:26,341 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2021-12-14 15:05:26,341 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2021-12-14 15:05:26,341 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtway_gs_mode [2021-12-14 15:05:26,342 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtway_gs_mode [2021-12-14 15:05:26,342 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_cmd_turn [2021-12-14 15:05:26,342 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_cmd_turn [2021-12-14 15:05:26,872 INFO L236 CfgBuilder]: Building ICFG [2021-12-14 15:05:26,874 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-14 15:05:36,102 INFO L277 CfgBuilder]: Performing block encoding [2021-12-14 15:05:36,130 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-14 15:05:36,130 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-14 15:05:36,135 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 03:05:36 BoogieIcfgContainer [2021-12-14 15:05:36,136 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-14 15:05:36,138 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-14 15:05:36,138 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-14 15:05:36,141 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-14 15:05:36,142 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 03:05:24" (1/3) ... [2021-12-14 15:05:36,143 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b5caa4c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 03:05:36, skipping insertion in model container [2021-12-14 15:05:36,143 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:05:25" (2/3) ... [2021-12-14 15:05:36,144 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b5caa4c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 03:05:36, skipping insertion in model container [2021-12-14 15:05:36,144 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 03:05:36" (3/3) ... [2021-12-14 15:05:36,146 INFO L111 eAbstractionObserver]: Analyzing ICFG rekh_aso.1.M4-1.c [2021-12-14 15:05:36,151 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-14 15:05:36,151 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-14 15:05:36,212 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-14 15:05:36,221 INFO L339 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=PETRI_NET, 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, mLoopAccelerationTechnique=FAST_UPR [2021-12-14 15:05:36,222 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-14 15:05:36,294 INFO L276 IsEmpty]: Start isEmpty. Operand has 2341 states, 1377 states have (on average 1.198257080610022) internal successors, (1650), 1381 states have internal predecessors, (1650), 940 states have call successors, (940), 22 states have call predecessors, (940), 22 states have return successors, (940), 938 states have call predecessors, (940), 940 states have call successors, (940) [2021-12-14 15:05:36,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1339 [2021-12-14 15:05:36,362 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 15:05:36,363 INFO L514 BasicCegarLoop]: trace histogram [209, 209, 209, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 15:05:36,364 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 15:05:36,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 15:05:36,369 INFO L85 PathProgramCache]: Analyzing trace with hash -590931743, now seen corresponding path program 1 times [2021-12-14 15:05:36,378 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 15:05:36,378 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2081705504] [2021-12-14 15:05:36,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 15:05:36,380 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms