./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/seq-mthreaded/rekh_aso.2.M1-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/seq-mthreaded/rekh_aso.2.M1-1.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 dc59d2eb5280d2e1e7e9c76bdd35770d97977523b6f11f8f4ccd72ffe423d428 --- Real Ultimate output --- This is Ultimate 0.2.2-839c364b5d67a0f615c82cb70ab247790648d4a9-839c364 [2021-12-14 15:05:38,195 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-14 15:05:38,202 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-14 15:05:38,236 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-14 15:05:38,236 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-14 15:05:38,240 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-14 15:05:38,241 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-14 15:05:38,243 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-14 15:05:38,245 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-14 15:05:38,247 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-14 15:05:38,248 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-14 15:05:38,250 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-14 15:05:38,251 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-14 15:05:38,256 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-14 15:05:38,258 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-14 15:05:38,259 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-14 15:05:38,263 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-14 15:05:38,264 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-14 15:05:38,265 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-14 15:05:38,267 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-14 15:05:38,271 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-14 15:05:38,272 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-14 15:05:38,273 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-14 15:05:38,274 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-14 15:05:38,276 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-14 15:05:38,278 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-14 15:05:38,278 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-14 15:05:38,279 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-14 15:05:38,280 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-14 15:05:38,281 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-14 15:05:38,281 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-14 15:05:38,282 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-14 15:05:38,283 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-14 15:05:38,284 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-14 15:05:38,286 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-14 15:05:38,286 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-14 15:05:38,287 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-14 15:05:38,287 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-14 15:05:38,287 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-14 15:05:38,288 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-14 15:05:38,288 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-14 15:05:38,289 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-14 15:05:38,319 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-14 15:05:38,322 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-14 15:05:38,322 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-14 15:05:38,323 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-14 15:05:38,323 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-14 15:05:38,324 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-14 15:05:38,324 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-14 15:05:38,324 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-14 15:05:38,324 INFO L138 SettingsManager]: * Use SBE=true [2021-12-14 15:05:38,325 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-14 15:05:38,326 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-14 15:05:38,326 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-14 15:05:38,326 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-14 15:05:38,326 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-14 15:05:38,327 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-14 15:05:38,327 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-14 15:05:38,327 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-14 15:05:38,327 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-14 15:05:38,327 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-14 15:05:38,327 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-14 15:05:38,328 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-14 15:05:38,328 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-14 15:05:38,328 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-14 15:05:38,328 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-14 15:05:38,328 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-14 15:05:38,329 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-14 15:05:38,329 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-14 15:05:38,329 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-14 15:05:38,329 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-14 15:05:38,330 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-14 15:05:38,330 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-14 15:05:38,330 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-14 15:05:38,330 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-14 15:05:38,330 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-14 15:05:38,331 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dc59d2eb5280d2e1e7e9c76bdd35770d97977523b6f11f8f4ccd72ffe423d428 [2021-12-14 15:05:38,567 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-14 15:05:38,590 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-14 15:05:38,593 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-14 15:05:38,594 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-14 15:05:38,595 INFO L275 PluginConnector]: CDTParser initialized [2021-12-14 15:05:38,596 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded/rekh_aso.2.M1-1.c [2021-12-14 15:05:38,656 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2a63c8151/993d91aed4ba45d28d8bfcff93653a99/FLAG0c816b401 [2021-12-14 15:05:39,233 INFO L306 CDTParser]: Found 1 translation units. [2021-12-14 15:05:39,233 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/rekh_aso.2.M1-1.c [2021-12-14 15:05:39,265 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2a63c8151/993d91aed4ba45d28d8bfcff93653a99/FLAG0c816b401 [2021-12-14 15:05:39,675 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2a63c8151/993d91aed4ba45d28d8bfcff93653a99 [2021-12-14 15:05:39,677 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-14 15:05:39,679 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-14 15:05:39,682 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-14 15:05:39,682 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-14 15:05:39,685 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-14 15:05:39,685 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 03:05:39" (1/1) ... [2021-12-14 15:05:39,687 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56a2260c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:05:39, skipping insertion in model container [2021-12-14 15:05:39,688 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 03:05:39" (1/1) ... [2021-12-14 15:05:39,693 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-14 15:05:39,762 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-14 15:05:39,934 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.M1-1.c[1807,1820] [2021-12-14 15:05:40,413 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-14 15:05:40,423 INFO L203 MainTranslator]: Completed pre-run [2021-12-14 15:05:40,435 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.M1-1.c[1807,1820] [2021-12-14 15:05:40,740 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-14 15:05:40,763 INFO L208 MainTranslator]: Completed translation [2021-12-14 15:05:40,764 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:05:40 WrapperNode [2021-12-14 15:05:40,764 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-14 15:05:40,765 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-14 15:05:40,765 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-14 15:05:40,765 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-14 15:05:40,772 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:05:40" (1/1) ... [2021-12-14 15:05:40,871 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:05:40" (1/1) ... [2021-12-14 15:05:41,208 INFO L137 Inliner]: procedures = 70, calls = 5188, calls flagged for inlining = 26, calls inlined = 26, statements flattened = 9727 [2021-12-14 15:05:41,209 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-14 15:05:41,210 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-14 15:05:41,210 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-14 15:05:41,210 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-14 15:05:41,218 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:05:40" (1/1) ... [2021-12-14 15:05:41,218 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:05:40" (1/1) ... [2021-12-14 15:05:41,289 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:05:40" (1/1) ... [2021-12-14 15:05:41,290 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:05:40" (1/1) ... [2021-12-14 15:05:41,519 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:05:40" (1/1) ... [2021-12-14 15:05:41,547 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:05:40" (1/1) ... [2021-12-14 15:05:41,577 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:05:40" (1/1) ... [2021-12-14 15:05:41,626 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-14 15:05:41,628 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-14 15:05:41,629 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-14 15:05:41,629 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-14 15:05:41,630 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:05:40" (1/1) ... [2021-12-14 15:05:41,636 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-14 15:05:41,647 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 15:05:41,660 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-14 15:05:41,672 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-14 15:05:41,736 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-14 15:05:41,737 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_trans [2021-12-14 15:05:41,737 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_trans [2021-12-14 15:05:41,737 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_cmd_forward [2021-12-14 15:05:41,737 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_cmd_forward [2021-12-14 15:05:41,737 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2021-12-14 15:05:41,737 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2021-12-14 15:05:41,738 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_nxtway_gs_mode [2021-12-14 15:05:41,738 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_nxtway_gs_mode [2021-12-14 15:05:41,738 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-14 15:05:41,738 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2021-12-14 15:05:41,738 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2021-12-14 15:05:41,738 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2021-12-14 15:05:41,739 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2021-12-14 15:05:41,739 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read___startrek_current_priority [2021-12-14 15:05:41,739 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read___startrek_current_priority [2021-12-14 15:05:41,739 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_obstacle_flag [2021-12-14 15:05:41,739 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_obstacle_flag [2021-12-14 15:05:41,739 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-14 15:05:41,739 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2021-12-14 15:05:41,740 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2021-12-14 15:05:41,740 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_gyro_sensor [2021-12-14 15:05:41,740 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_gyro_sensor [2021-12-14 15:05:41,740 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_cmd_turn [2021-12-14 15:05:41,741 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_cmd_turn [2021-12-14 15:05:41,741 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write___startrek_current_priority [2021-12-14 15:05:41,741 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write___startrek_current_priority [2021-12-14 15:05:41,741 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts1 [2021-12-14 15:05:41,741 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts1 [2021-12-14 15:05:41,741 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts2 [2021-12-14 15:05:41,742 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts2 [2021-12-14 15:05:41,742 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts3 [2021-12-14 15:05:41,742 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts3 [2021-12-14 15:05:41,742 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-14 15:05:41,742 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-14 15:05:41,743 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2021-12-14 15:05:41,743 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2021-12-14 15:05:41,743 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_speed [2021-12-14 15:05:41,743 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_speed [2021-12-14 15:05:41,743 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_cmd_forward [2021-12-14 15:05:41,743 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_cmd_forward [2021-12-14 15:05:41,744 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_obstacle_flag [2021-12-14 15:05:41,744 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_obstacle_flag [2021-12-14 15:05:41,744 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-14 15:05:41,744 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-14 15:05:41,744 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-14 15:05:41,744 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-14 15:05:41,745 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-14 15:05:41,745 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_systick_ms [2021-12-14 15:05:41,745 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_systick_ms [2021-12-14 15:05:41,745 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2021-12-14 15:05:41,745 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2021-12-14 15:05:41,746 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtway_gs_mode [2021-12-14 15:05:41,746 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtway_gs_mode [2021-12-14 15:05:41,747 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_cmd_turn [2021-12-14 15:05:41,747 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_cmd_turn [2021-12-14 15:05:42,546 INFO L236 CfgBuilder]: Building ICFG [2021-12-14 15:05:42,557 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-14 15:05:54,804 INFO L277 CfgBuilder]: Performing block encoding [2021-12-14 15:05:54,831 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-14 15:05:54,832 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-14 15:05:54,837 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 03:05:54 BoogieIcfgContainer [2021-12-14 15:05:54,838 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-14 15:05:54,839 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-14 15:05:54,839 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-14 15:05:54,842 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-14 15:05:54,843 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 03:05:39" (1/3) ... [2021-12-14 15:05:54,844 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17f15905 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 03:05:54, skipping insertion in model container [2021-12-14 15:05:54,844 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:05:40" (2/3) ... [2021-12-14 15:05:54,845 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17f15905 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 03:05:54, skipping insertion in model container [2021-12-14 15:05:54,845 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 03:05:54" (3/3) ... [2021-12-14 15:05:54,847 INFO L111 eAbstractionObserver]: Analyzing ICFG rekh_aso.2.M1-1.c [2021-12-14 15:05:54,853 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-14 15:05:54,853 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-14 15:05:54,916 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-14 15:05:54,925 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-14 15:05:54,925 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-14 15:05:55,008 INFO L276 IsEmpty]: Start isEmpty. Operand has 3573 states, 2041 states have (on average 1.1656050955414012) internal successors, (2379), 2046 states have internal predecessors, (2379), 1506 states have call successors, (1506), 24 states have call predecessors, (1506), 24 states have return successors, (1506), 1504 states have call predecessors, (1506), 1506 states have call successors, (1506) [2021-12-14 15:05:55,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1377 [2021-12-14 15:05:55,084 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 15:05:55,086 INFO L514 BasicCegarLoop]: 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] [2021-12-14 15:05:55,087 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 15:05:55,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 15:05:55,092 INFO L85 PathProgramCache]: Analyzing trace with hash -274580296, now seen corresponding path program 1 times [2021-12-14 15:05:55,099 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 15:05:55,100 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [466124020] [2021-12-14 15:05:55,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 15:05:55,101 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms