./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/seq-mthreaded/rekh_aso.3.M4.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f4b24e32 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.3.M4.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 88c381f80ede07771f395015e897371ba8d778e07b9cc24c64e290568f2e97f7 --- Real Ultimate output --- This is Ultimate 0.2.2-?-f4b24e3 [2022-07-13 18:33:28,127 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-13 18:33:28,129 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-13 18:33:28,155 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-13 18:33:28,156 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-13 18:33:28,157 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-13 18:33:28,158 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-13 18:33:28,160 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-13 18:33:28,161 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-13 18:33:28,162 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-13 18:33:28,162 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-13 18:33:28,163 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-13 18:33:28,164 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-13 18:33:28,165 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-13 18:33:28,166 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-13 18:33:28,167 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-13 18:33:28,167 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-13 18:33:28,168 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-13 18:33:28,170 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-13 18:33:28,171 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-13 18:33:28,173 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-13 18:33:28,174 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-13 18:33:28,175 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-13 18:33:28,176 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-13 18:33:28,177 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-13 18:33:28,179 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-13 18:33:28,180 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-13 18:33:28,180 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-13 18:33:28,181 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-13 18:33:28,181 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-13 18:33:28,182 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-13 18:33:28,183 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-13 18:33:28,183 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-13 18:33:28,184 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-13 18:33:28,185 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-13 18:33:28,185 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-13 18:33:28,186 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-13 18:33:28,186 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-13 18:33:28,187 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-13 18:33:28,187 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-13 18:33:28,188 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-13 18:33:28,188 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-13 18:33:28,189 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-13 18:33:28,209 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-13 18:33:28,209 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-13 18:33:28,209 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-13 18:33:28,209 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-13 18:33:28,210 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-13 18:33:28,210 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-13 18:33:28,211 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-13 18:33:28,211 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-13 18:33:28,211 INFO L138 SettingsManager]: * Use SBE=true [2022-07-13 18:33:28,212 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-13 18:33:28,212 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-13 18:33:28,212 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-13 18:33:28,212 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-13 18:33:28,212 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-13 18:33:28,213 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-13 18:33:28,213 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-13 18:33:28,213 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-13 18:33:28,213 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-13 18:33:28,213 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-13 18:33:28,214 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-13 18:33:28,214 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-13 18:33:28,214 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-13 18:33:28,214 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-13 18:33:28,215 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-13 18:33:28,215 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-13 18:33:28,215 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-13 18:33:28,215 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-13 18:33:28,216 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-13 18:33:28,216 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-13 18:33:28,216 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-13 18:33:28,216 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-13 18:33:28,216 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-13 18:33:28,217 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-13 18:33:28,217 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 88c381f80ede07771f395015e897371ba8d778e07b9cc24c64e290568f2e97f7 [2022-07-13 18:33:28,417 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-13 18:33:28,444 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-13 18:33:28,446 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-13 18:33:28,448 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-13 18:33:28,448 INFO L275 PluginConnector]: CDTParser initialized [2022-07-13 18:33:28,449 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded/rekh_aso.3.M4.c [2022-07-13 18:33:28,513 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ee417a736/1347273c666e4b20bd2a7bb5d01a2bbd/FLAG72361e949 [2022-07-13 18:33:29,124 INFO L306 CDTParser]: Found 1 translation units. [2022-07-13 18:33:29,124 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/rekh_aso.3.M4.c [2022-07-13 18:33:29,143 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ee417a736/1347273c666e4b20bd2a7bb5d01a2bbd/FLAG72361e949 [2022-07-13 18:33:29,529 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ee417a736/1347273c666e4b20bd2a7bb5d01a2bbd [2022-07-13 18:33:29,532 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-13 18:33:29,533 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-13 18:33:29,534 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-13 18:33:29,534 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-13 18:33:29,537 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-13 18:33:29,538 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 06:33:29" (1/1) ... [2022-07-13 18:33:29,538 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@10e1e490 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:33:29, skipping insertion in model container [2022-07-13 18:33:29,539 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 06:33:29" (1/1) ... [2022-07-13 18:33:29,546 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-13 18:33:29,609 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-13 18:33:29,857 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.3.M4.c[1806,1819] [2022-07-13 18:33:30,369 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 18:33:30,378 INFO L203 MainTranslator]: Completed pre-run [2022-07-13 18:33:30,399 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.3.M4.c[1806,1819] [2022-07-13 18:33:30,649 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 18:33:30,670 INFO L208 MainTranslator]: Completed translation [2022-07-13 18:33:30,671 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:33:30 WrapperNode [2022-07-13 18:33:30,671 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-13 18:33:30,673 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-13 18:33:30,673 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-13 18:33:30,673 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-13 18:33:30,680 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:33:30" (1/1) ... [2022-07-13 18:33:30,764 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:33:30" (1/1) ... [2022-07-13 18:33:31,132 INFO L137 Inliner]: procedures = 70, calls = 5239, calls flagged for inlining = 24, calls inlined = 24, statements flattened = 9786 [2022-07-13 18:33:31,133 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-13 18:33:31,134 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-13 18:33:31,134 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-13 18:33:31,134 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-13 18:33:31,145 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:33:30" (1/1) ... [2022-07-13 18:33:31,145 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:33:30" (1/1) ... [2022-07-13 18:33:31,224 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:33:30" (1/1) ... [2022-07-13 18:33:31,224 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:33:30" (1/1) ... [2022-07-13 18:33:31,430 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:33:30" (1/1) ... [2022-07-13 18:33:31,460 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:33:30" (1/1) ... [2022-07-13 18:33:31,484 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:33:30" (1/1) ... [2022-07-13 18:33:31,522 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-13 18:33:31,524 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-13 18:33:31,524 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-13 18:33:31,525 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-13 18:33:31,526 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:33:30" (1/1) ... [2022-07-13 18:33:31,532 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-13 18:33:31,543 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 18:33:31,561 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) [2022-07-13 18:33:31,584 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 [2022-07-13 18:33:31,603 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-13 18:33:31,604 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_cmd_forward [2022-07-13 18:33:31,604 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_cmd_forward [2022-07-13 18:33:31,604 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2022-07-13 18:33:31,604 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2022-07-13 18:33:31,604 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_nxtway_gs_mode [2022-07-13 18:33:31,604 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_nxtway_gs_mode [2022-07-13 18:33:31,605 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-13 18:33:31,605 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2022-07-13 18:33:31,605 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2022-07-13 18:33:31,605 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2022-07-13 18:33:31,605 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2022-07-13 18:33:31,605 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read___startrek_current_priority [2022-07-13 18:33:31,605 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read___startrek_current_priority [2022-07-13 18:33:31,606 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_obstacle_flag [2022-07-13 18:33:31,606 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_obstacle_flag [2022-07-13 18:33:31,606 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-13 18:33:31,606 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2022-07-13 18:33:31,607 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2022-07-13 18:33:31,607 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_version [2022-07-13 18:33:31,607 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_version [2022-07-13 18:33:31,607 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_gyro_sensor [2022-07-13 18:33:31,607 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_gyro_sensor [2022-07-13 18:33:31,607 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_cmd_turn [2022-07-13 18:33:31,608 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_cmd_turn [2022-07-13 18:33:31,608 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write___startrek_current_priority [2022-07-13 18:33:31,608 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write___startrek_current_priority [2022-07-13 18:33:31,608 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts1 [2022-07-13 18:33:31,608 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts1 [2022-07-13 18:33:31,608 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_version [2022-07-13 18:33:31,608 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_version [2022-07-13 18:33:31,609 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts2 [2022-07-13 18:33:31,609 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts2 [2022-07-13 18:33:31,609 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts3 [2022-07-13 18:33:31,609 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts3 [2022-07-13 18:33:31,609 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-13 18:33:31,609 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_hyperperiod [2022-07-13 18:33:31,609 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_hyperperiod [2022-07-13 18:33:31,610 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-13 18:33:31,610 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2022-07-13 18:33:31,610 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2022-07-13 18:33:31,610 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_speed [2022-07-13 18:33:31,610 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_speed [2022-07-13 18:33:31,611 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_cmd_forward [2022-07-13 18:33:31,611 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_cmd_forward [2022-07-13 18:33:31,611 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_obstacle_flag [2022-07-13 18:33:31,611 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_obstacle_flag [2022-07-13 18:33:31,611 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-07-13 18:33:31,611 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-07-13 18:33:31,611 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-13 18:33:31,612 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-13 18:33:31,612 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-13 18:33:31,613 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_systick_ms [2022-07-13 18:33:31,613 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_systick_ms [2022-07-13 18:33:31,613 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2022-07-13 18:33:31,613 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2022-07-13 18:33:31,614 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtway_gs_mode [2022-07-13 18:33:31,614 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtway_gs_mode [2022-07-13 18:33:31,614 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_cmd_turn [2022-07-13 18:33:31,615 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_cmd_turn [2022-07-13 18:33:32,405 INFO L234 CfgBuilder]: Building ICFG [2022-07-13 18:33:32,407 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-13 18:33:48,005 INFO L275 CfgBuilder]: Performing block encoding [2022-07-13 18:33:48,032 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-13 18:33:48,033 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-07-13 18:33:48,038 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 06:33:48 BoogieIcfgContainer [2022-07-13 18:33:48,038 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-13 18:33:48,042 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-13 18:33:48,043 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-13 18:33:48,046 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-13 18:33:48,046 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.07 06:33:29" (1/3) ... [2022-07-13 18:33:48,047 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46028aab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 06:33:48, skipping insertion in model container [2022-07-13 18:33:48,047 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:33:30" (2/3) ... [2022-07-13 18:33:48,048 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46028aab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 06:33:48, skipping insertion in model container [2022-07-13 18:33:48,048 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 06:33:48" (3/3) ... [2022-07-13 18:33:48,049 INFO L111 eAbstractionObserver]: Analyzing ICFG rekh_aso.3.M4.c [2022-07-13 18:33:48,062 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-13 18:33:48,063 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-13 18:33:48,178 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-13 18:33:48,183 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@2d398716, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@3b711af4 [2022-07-13 18:33:48,184 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-13 18:33:48,199 INFO L276 IsEmpty]: Start isEmpty. Operand has 3589 states, 2050 states have (on average 1.1653658536585365) internal successors, (2389), 2055 states have internal predecessors, (2389), 1511 states have call successors, (1511), 26 states have call predecessors, (1511), 26 states have return successors, (1511), 1509 states have call predecessors, (1511), 1511 states have call successors, (1511) [2022-07-13 18:33:48,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1379 [2022-07-13 18:33:48,289 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 18:33:48,290 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] [2022-07-13 18:33:48,291 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 18:33:48,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 18:33:48,298 INFO L85 PathProgramCache]: Analyzing trace with hash 1434617797, now seen corresponding path program 1 times [2022-07-13 18:33:48,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 18:33:48,305 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [377006655] [2022-07-13 18:33:48,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 18:33:48,305 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms