./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/seq-mthreaded/rekh_aso.2.M4-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 791161d1 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.2.M4-2.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 20976b2d8a648a632a55cb7b6a072d8c835d658a3592a366af91723667ead694 --- Real Ultimate output --- This is Ultimate 0.2.2-?-791161d [2022-07-22 18:11:40,406 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-22 18:11:40,409 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-22 18:11:40,456 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-22 18:11:40,457 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-22 18:11:40,458 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-22 18:11:40,460 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-22 18:11:40,463 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-22 18:11:40,464 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-22 18:11:40,472 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-22 18:11:40,473 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-22 18:11:40,475 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-22 18:11:40,475 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-22 18:11:40,477 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-22 18:11:40,478 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-22 18:11:40,481 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-22 18:11:40,482 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-22 18:11:40,483 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-22 18:11:40,485 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-22 18:11:40,490 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-22 18:11:40,492 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-22 18:11:40,492 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-22 18:11:40,493 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-22 18:11:40,494 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-22 18:11:40,496 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-22 18:11:40,500 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-22 18:11:40,501 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-22 18:11:40,501 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-22 18:11:40,502 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-22 18:11:40,503 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-22 18:11:40,504 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-22 18:11:40,504 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-22 18:11:40,505 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-22 18:11:40,506 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-22 18:11:40,507 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-22 18:11:40,508 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-22 18:11:40,509 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-22 18:11:40,509 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-22 18:11:40,510 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-22 18:11:40,510 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-22 18:11:40,511 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-22 18:11:40,513 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-22 18:11:40,514 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-22 18:11:40,542 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-22 18:11:40,542 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-22 18:11:40,543 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-22 18:11:40,543 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-22 18:11:40,544 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-22 18:11:40,544 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-22 18:11:40,544 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-22 18:11:40,545 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-22 18:11:40,545 INFO L138 SettingsManager]: * Use SBE=true [2022-07-22 18:11:40,546 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-22 18:11:40,546 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-22 18:11:40,546 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-22 18:11:40,546 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-22 18:11:40,546 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-22 18:11:40,547 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-22 18:11:40,547 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-22 18:11:40,547 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-22 18:11:40,547 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-22 18:11:40,547 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-22 18:11:40,549 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-22 18:11:40,549 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-22 18:11:40,549 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-22 18:11:40,549 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-22 18:11:40,549 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-22 18:11:40,550 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-22 18:11:40,550 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-22 18:11:40,550 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-22 18:11:40,550 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-22 18:11:40,551 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-22 18:11:40,551 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-22 18:11:40,551 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-22 18:11:40,551 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-22 18:11:40,551 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-22 18:11:40,552 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 20976b2d8a648a632a55cb7b6a072d8c835d658a3592a366af91723667ead694 [2022-07-22 18:11:40,777 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-22 18:11:40,808 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-22 18:11:40,811 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-22 18:11:40,812 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-22 18:11:40,812 INFO L275 PluginConnector]: CDTParser initialized [2022-07-22 18:11:40,813 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded/rekh_aso.2.M4-2.c [2022-07-22 18:11:40,876 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5884707b5/bddb7e06e6c744b28d5bc6243ae900a7/FLAG42cf841ef [2022-07-22 18:11:41,430 INFO L306 CDTParser]: Found 1 translation units. [2022-07-22 18:11:41,431 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/rekh_aso.2.M4-2.c [2022-07-22 18:11:41,453 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5884707b5/bddb7e06e6c744b28d5bc6243ae900a7/FLAG42cf841ef [2022-07-22 18:11:41,681 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5884707b5/bddb7e06e6c744b28d5bc6243ae900a7 [2022-07-22 18:11:41,683 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-22 18:11:41,685 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-22 18:11:41,686 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-22 18:11:41,686 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-22 18:11:41,689 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-22 18:11:41,689 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 06:11:41" (1/1) ... [2022-07-22 18:11:41,690 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7026d669 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 06:11:41, skipping insertion in model container [2022-07-22 18:11:41,691 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 06:11:41" (1/1) ... [2022-07-22 18:11:41,697 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-22 18:11:41,794 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-22 18:11:41,958 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.2.M4-2.c[1807,1820] [2022-07-22 18:11:42,461 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 18:11:42,473 INFO L203 MainTranslator]: Completed pre-run [2022-07-22 18:11:42,490 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.2.M4-2.c[1807,1820] [2022-07-22 18:11:42,772 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 18:11:42,794 INFO L208 MainTranslator]: Completed translation [2022-07-22 18:11:42,795 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 06:11:42 WrapperNode [2022-07-22 18:11:42,795 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-22 18:11:42,796 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-22 18:11:42,796 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-22 18:11:42,796 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-22 18:11:42,802 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 06:11:42" (1/1) ... [2022-07-22 18:11:42,884 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 06:11:42" (1/1) ... [2022-07-22 18:11:43,292 INFO L137 Inliner]: procedures = 70, calls = 5237, calls flagged for inlining = 25, calls inlined = 25, statements flattened = 9803 [2022-07-22 18:11:43,293 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-22 18:11:43,294 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-22 18:11:43,294 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-22 18:11:43,294 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-22 18:11:43,302 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 06:11:42" (1/1) ... [2022-07-22 18:11:43,302 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 06:11:42" (1/1) ... [2022-07-22 18:11:43,381 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 06:11:42" (1/1) ... [2022-07-22 18:11:43,382 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 06:11:42" (1/1) ... [2022-07-22 18:11:43,609 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 06:11:42" (1/1) ... [2022-07-22 18:11:43,635 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 06:11:42" (1/1) ... [2022-07-22 18:11:43,661 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 06:11:42" (1/1) ... [2022-07-22 18:11:43,699 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-22 18:11:43,701 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-22 18:11:43,702 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-22 18:11:43,702 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-22 18:11:43,703 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 06:11:42" (1/1) ... [2022-07-22 18:11:43,709 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-22 18:11:43,718 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 18:11:43,736 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) [2022-07-22 18:11:43,760 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 [2022-07-22 18:11:43,785 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-22 18:11:43,786 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_trans [2022-07-22 18:11:43,786 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_trans [2022-07-22 18:11:43,786 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_cmd_forward [2022-07-22 18:11:43,786 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_cmd_forward [2022-07-22 18:11:43,786 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2022-07-22 18:11:43,787 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2022-07-22 18:11:43,787 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_nxtway_gs_mode [2022-07-22 18:11:43,787 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_nxtway_gs_mode [2022-07-22 18:11:43,787 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-22 18:11:43,787 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2022-07-22 18:11:43,787 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2022-07-22 18:11:43,787 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2022-07-22 18:11:43,788 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2022-07-22 18:11:43,788 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read___startrek_current_priority [2022-07-22 18:11:43,788 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read___startrek_current_priority [2022-07-22 18:11:43,788 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_obstacle_flag [2022-07-22 18:11:43,788 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_obstacle_flag [2022-07-22 18:11:43,788 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-22 18:11:43,789 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2022-07-22 18:11:43,789 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2022-07-22 18:11:43,789 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_gyro_sensor [2022-07-22 18:11:43,789 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_gyro_sensor [2022-07-22 18:11:43,789 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_cmd_turn [2022-07-22 18:11:43,789 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_cmd_turn [2022-07-22 18:11:43,789 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write___startrek_current_priority [2022-07-22 18:11:43,790 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write___startrek_current_priority [2022-07-22 18:11:43,790 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts1 [2022-07-22 18:11:43,790 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts1 [2022-07-22 18:11:43,790 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts2 [2022-07-22 18:11:43,790 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts2 [2022-07-22 18:11:43,790 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts3 [2022-07-22 18:11:43,790 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts3 [2022-07-22 18:11:43,791 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-22 18:11:43,791 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_hyperperiod [2022-07-22 18:11:43,791 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_hyperperiod [2022-07-22 18:11:43,791 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-22 18:11:43,791 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2022-07-22 18:11:43,792 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2022-07-22 18:11:43,792 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_speed [2022-07-22 18:11:43,792 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_speed [2022-07-22 18:11:43,792 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_cmd_forward [2022-07-22 18:11:43,792 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_cmd_forward [2022-07-22 18:11:43,792 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_obstacle_flag [2022-07-22 18:11:43,792 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_obstacle_flag [2022-07-22 18:11:43,793 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-07-22 18:11:43,793 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-07-22 18:11:43,793 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-22 18:11:43,793 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-22 18:11:43,793 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-22 18:11:43,794 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_systick_ms [2022-07-22 18:11:43,794 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_systick_ms [2022-07-22 18:11:43,794 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2022-07-22 18:11:43,795 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2022-07-22 18:11:43,796 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtway_gs_mode [2022-07-22 18:11:43,796 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtway_gs_mode [2022-07-22 18:11:43,796 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_cmd_turn [2022-07-22 18:11:43,797 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_cmd_turn [2022-07-22 18:11:44,569 INFO L234 CfgBuilder]: Building ICFG [2022-07-22 18:11:44,571 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-22 18:11:59,646 INFO L275 CfgBuilder]: Performing block encoding [2022-07-22 18:11:59,676 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-22 18:11:59,677 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-07-22 18:11:59,683 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 06:11:59 BoogieIcfgContainer [2022-07-22 18:11:59,684 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-22 18:11:59,686 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-22 18:11:59,687 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-22 18:11:59,690 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-22 18:11:59,690 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.07 06:11:41" (1/3) ... [2022-07-22 18:11:59,691 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a1c468e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.07 06:11:59, skipping insertion in model container [2022-07-22 18:11:59,691 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 06:11:42" (2/3) ... [2022-07-22 18:11:59,692 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a1c468e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.07 06:11:59, skipping insertion in model container [2022-07-22 18:11:59,692 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 06:11:59" (3/3) ... [2022-07-22 18:11:59,694 INFO L111 eAbstractionObserver]: Analyzing ICFG rekh_aso.2.M4-2.c [2022-07-22 18:11:59,707 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-22 18:11:59,707 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-22 18:11:59,840 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-22 18:11:59,847 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=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, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@39d7eb9f, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@5cd0b169 [2022-07-22 18:11:59,848 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-22 18:11:59,864 INFO L276 IsEmpty]: Start isEmpty. Operand has 3579 states, 2044 states have (on average 1.1653620352250489) internal successors, (2382), 2049 states have internal predecessors, (2382), 1508 states have call successors, (1508), 25 states have call predecessors, (1508), 25 states have return successors, (1508), 1506 states have call predecessors, (1508), 1508 states have call successors, (1508) [2022-07-22 18:11:59,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1379 [2022-07-22 18:11:59,953 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 18:11:59,954 INFO L195 NwaCegarLoop]: trace histogram [210, 210, 210, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 18:11:59,955 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 18:11:59,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 18:11:59,963 INFO L85 PathProgramCache]: Analyzing trace with hash 1024813490, now seen corresponding path program 1 times [2022-07-22 18:11:59,971 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 18:11:59,972 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1582673842] [2022-07-22 18:11:59,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 18:11:59,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms