./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/seq-mthreaded/rekcba_aso.2.M4-1.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/rekcba_aso.2.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 2d62eb188ec8009366dfdca221ff91e65711c28198c7f8ea6438b1bcf863cd3f --- Real Ultimate output --- This is Ultimate 0.2.2-?-791161d [2022-07-22 18:08:06,955 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-22 18:08:06,957 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-22 18:08:07,006 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-22 18:08:07,006 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-22 18:08:07,008 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-22 18:08:07,010 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-22 18:08:07,012 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-22 18:08:07,014 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-22 18:08:07,019 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-22 18:08:07,020 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-22 18:08:07,021 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-22 18:08:07,022 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-22 18:08:07,024 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-22 18:08:07,025 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-22 18:08:07,029 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-22 18:08:07,029 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-22 18:08:07,031 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-22 18:08:07,032 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-22 18:08:07,038 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-22 18:08:07,040 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-22 18:08:07,040 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-22 18:08:07,041 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-22 18:08:07,042 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-22 18:08:07,044 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-22 18:08:07,050 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-22 18:08:07,051 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-22 18:08:07,051 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-22 18:08:07,052 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-22 18:08:07,053 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-22 18:08:07,054 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-22 18:08:07,054 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-22 18:08:07,056 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-22 18:08:07,056 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-22 18:08:07,057 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-22 18:08:07,057 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-22 18:08:07,058 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-22 18:08:07,058 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-22 18:08:07,058 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-22 18:08:07,059 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-22 18:08:07,060 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-22 18:08:07,061 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-22 18:08:07,062 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-22 18:08:07,090 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-22 18:08:07,091 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-22 18:08:07,091 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-22 18:08:07,091 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-22 18:08:07,092 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-22 18:08:07,092 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-22 18:08:07,093 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-22 18:08:07,093 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-22 18:08:07,093 INFO L138 SettingsManager]: * Use SBE=true [2022-07-22 18:08:07,094 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-22 18:08:07,094 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-22 18:08:07,094 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-22 18:08:07,095 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-22 18:08:07,095 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-22 18:08:07,095 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-22 18:08:07,095 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-22 18:08:07,095 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-22 18:08:07,096 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-22 18:08:07,096 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-22 18:08:07,097 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-22 18:08:07,097 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-22 18:08:07,097 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-22 18:08:07,097 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-22 18:08:07,098 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-22 18:08:07,098 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-22 18:08:07,098 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-22 18:08:07,098 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-22 18:08:07,098 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-22 18:08:07,099 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-22 18:08:07,099 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-22 18:08:07,099 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-22 18:08:07,099 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-22 18:08:07,099 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-22 18:08:07,100 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2d62eb188ec8009366dfdca221ff91e65711c28198c7f8ea6438b1bcf863cd3f [2022-07-22 18:08:07,323 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-22 18:08:07,345 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-22 18:08:07,347 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-22 18:08:07,348 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-22 18:08:07,349 INFO L275 PluginConnector]: CDTParser initialized [2022-07-22 18:08:07,349 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded/rekcba_aso.2.M4-1.c [2022-07-22 18:08:07,429 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/10edb5e88/58f7114369664127900a3097a0ae4206/FLAG2e692e34e [2022-07-22 18:08:08,054 INFO L306 CDTParser]: Found 1 translation units. [2022-07-22 18:08:08,055 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/rekcba_aso.2.M4-1.c [2022-07-22 18:08:08,113 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/10edb5e88/58f7114369664127900a3097a0ae4206/FLAG2e692e34e [2022-07-22 18:08:08,155 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/10edb5e88/58f7114369664127900a3097a0ae4206 [2022-07-22 18:08:08,174 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-22 18:08:08,183 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-22 18:08:08,186 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-22 18:08:08,186 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-22 18:08:08,190 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-22 18:08:08,191 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 06:08:08" (1/1) ... [2022-07-22 18:08:08,192 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@25a8d5b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 06:08:08, skipping insertion in model container [2022-07-22 18:08:08,192 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 06:08:08" (1/1) ... [2022-07-22 18:08:08,198 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-22 18:08:08,351 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-22 18:08:08,651 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/rekcba_aso.2.M4-1.c[2836,2849] [2022-07-22 18:08:09,660 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 18:08:09,687 INFO L203 MainTranslator]: Completed pre-run [2022-07-22 18:08:09,711 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/rekcba_aso.2.M4-1.c[2836,2849] [2022-07-22 18:08:10,497 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 18:08:10,529 INFO L208 MainTranslator]: Completed translation [2022-07-22 18:08:10,530 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 06:08:10 WrapperNode [2022-07-22 18:08:10,530 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-22 18:08:10,531 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-22 18:08:10,531 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-22 18:08:10,531 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-22 18:08:10,537 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 06:08:10" (1/1) ... [2022-07-22 18:08:10,912 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 06:08:10" (1/1) ... [2022-07-22 18:08:12,364 INFO L137 Inliner]: procedures = 63, calls = 19673, calls flagged for inlining = 22, calls inlined = 22, statements flattened = 42427 [2022-07-22 18:08:12,365 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-22 18:08:12,367 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-22 18:08:12,367 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-22 18:08:12,367 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-22 18:08:12,374 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 06:08:10" (1/1) ... [2022-07-22 18:08:12,374 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 06:08:10" (1/1) ... [2022-07-22 18:08:12,583 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 06:08:10" (1/1) ... [2022-07-22 18:08:12,583 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 06:08:10" (1/1) ... [2022-07-22 18:08:13,250 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 06:08:10" (1/1) ... [2022-07-22 18:08:13,351 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 06:08:10" (1/1) ... [2022-07-22 18:08:13,472 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 06:08:10" (1/1) ... [2022-07-22 18:08:13,660 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-22 18:08:13,661 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-22 18:08:13,661 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-22 18:08:13,661 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-22 18:08:13,662 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 06:08:10" (1/1) ... [2022-07-22 18:08:13,668 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-22 18:08:13,677 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 18:08:13,693 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 18:08:13,704 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 18:08:13,728 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-22 18:08:13,728 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_cmd_forward [2022-07-22 18:08:13,728 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_cmd_forward [2022-07-22 18:08:13,728 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2022-07-22 18:08:13,728 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2022-07-22 18:08:13,729 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_nxtway_gs_mode [2022-07-22 18:08:13,729 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_nxtway_gs_mode [2022-07-22 18:08:13,729 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-22 18:08:13,729 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2022-07-22 18:08:13,729 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2022-07-22 18:08:13,729 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2022-07-22 18:08:13,729 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2022-07-22 18:08:13,730 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_obstacle_flag [2022-07-22 18:08:13,730 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_obstacle_flag [2022-07-22 18:08:13,730 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-22 18:08:13,730 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2022-07-22 18:08:13,730 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2022-07-22 18:08:13,730 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_gyro_sensor [2022-07-22 18:08:13,730 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_gyro_sensor [2022-07-22 18:08:13,731 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_cmd_turn [2022-07-22 18:08:13,731 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_cmd_turn [2022-07-22 18:08:13,731 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts1 [2022-07-22 18:08:13,731 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts1 [2022-07-22 18:08:13,731 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts2 [2022-07-22 18:08:13,731 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts2 [2022-07-22 18:08:13,731 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts3 [2022-07-22 18:08:13,732 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts3 [2022-07-22 18:08:13,732 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-22 18:08:13,732 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-22 18:08:13,732 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2022-07-22 18:08:13,732 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2022-07-22 18:08:13,732 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_speed [2022-07-22 18:08:13,732 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_speed [2022-07-22 18:08:13,733 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_cmd_forward [2022-07-22 18:08:13,733 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_cmd_forward [2022-07-22 18:08:13,733 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_obstacle_flag [2022-07-22 18:08:13,733 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_obstacle_flag [2022-07-22 18:08:13,733 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-07-22 18:08:13,733 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-07-22 18:08:13,733 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-22 18:08:13,734 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-22 18:08:13,734 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-22 18:08:13,734 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_systick_ms [2022-07-22 18:08:13,734 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_systick_ms [2022-07-22 18:08:13,734 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2022-07-22 18:08:13,734 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2022-07-22 18:08:13,734 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtway_gs_mode [2022-07-22 18:08:13,735 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtway_gs_mode [2022-07-22 18:08:13,735 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_cmd_turn [2022-07-22 18:08:13,735 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_cmd_turn [2022-07-22 18:08:15,707 INFO L234 CfgBuilder]: Building ICFG [2022-07-22 18:08:15,708 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-22 18:09:33,282 INFO L275 CfgBuilder]: Performing block encoding [2022-07-22 18:09:33,363 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-22 18:09:33,364 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-07-22 18:09:33,378 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 06:09:33 BoogieIcfgContainer [2022-07-22 18:09:33,379 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-22 18:09:33,381 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-22 18:09:33,381 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-22 18:09:33,384 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-22 18:09:33,385 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.07 06:08:08" (1/3) ... [2022-07-22 18:09:33,385 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1081ac7d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.07 06:09:33, skipping insertion in model container [2022-07-22 18:09:33,385 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 06:08:10" (2/3) ... [2022-07-22 18:09:33,386 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1081ac7d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.07 06:09:33, skipping insertion in model container [2022-07-22 18:09:33,386 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 06:09:33" (3/3) ... [2022-07-22 18:09:33,389 INFO L111 eAbstractionObserver]: Analyzing ICFG rekcba_aso.2.M4-1.c [2022-07-22 18:09:33,402 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-22 18:09:33,402 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-22 18:09:33,635 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-22 18:09:33,642 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@700e65d7, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@77d3e03f [2022-07-22 18:09:33,643 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-22 18:09:33,681 INFO L276 IsEmpty]: Start isEmpty. Operand has 12868 states, 8328 states have (on average 1.3061959654178674) internal successors, (10878), 8440 states have internal predecessors, (10878), 4517 states have call successors, (4517), 21 states have call predecessors, (4517), 21 states have return successors, (4517), 4515 states have call predecessors, (4517), 4517 states have call successors, (4517) [2022-07-22 18:09:34,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5901 [2022-07-22 18:09:34,224 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 18:09:34,229 INFO L195 NwaCegarLoop]: trace histogram [551, 551, 551, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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Iteration 1 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 18:09:34,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 18:09:34,236 INFO L85 PathProgramCache]: Analyzing trace with hash 70935065, now seen corresponding path program 1 times [2022-07-22 18:09:34,242 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 18:09:34,243 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [365723028] [2022-07-22 18:09:34,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 18:09:34,244 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms