./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/seq-mthreaded/rekcba_nxt.2.M4-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 803cd42f Calling Ultimate with: /root/.sdkman/candidates/java/current/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_nxt.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 --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 6240875fd021ef86002633b5e6fdfcec4ffcbe681ff045b4f4e341a758fe554a --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-803cd42-m [2024-11-22 02:35:05,186 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-22 02:35:05,261 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-22 02:35:05,267 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-22 02:35:05,269 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-22 02:35:05,295 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-22 02:35:05,296 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-22 02:35:05,296 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-22 02:35:05,297 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-22 02:35:05,299 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-22 02:35:05,299 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-22 02:35:05,300 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-22 02:35:05,300 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-22 02:35:05,301 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-22 02:35:05,301 INFO L153 SettingsManager]: * Use SBE=true [2024-11-22 02:35:05,301 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-22 02:35:05,301 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-22 02:35:05,302 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-22 02:35:05,302 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-22 02:35:05,306 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-22 02:35:05,306 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-22 02:35:05,307 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-22 02:35:05,307 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-22 02:35:05,307 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-22 02:35:05,307 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-22 02:35:05,308 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-22 02:35:05,308 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-22 02:35:05,308 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-22 02:35:05,308 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-22 02:35:05,309 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-22 02:35:05,309 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-22 02:35:05,309 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-22 02:35:05,309 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 02:35:05,309 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-22 02:35:05,310 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-22 02:35:05,310 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-22 02:35:05,310 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-22 02:35:05,310 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-22 02:35:05,311 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-22 02:35:05,311 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-22 02:35:05,311 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-22 02:35:05,311 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-22 02:35:05,312 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6240875fd021ef86002633b5e6fdfcec4ffcbe681ff045b4f4e341a758fe554a [2024-11-22 02:35:05,580 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-22 02:35:05,605 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-22 02:35:05,608 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-22 02:35:05,609 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-22 02:35:05,610 INFO L274 PluginConnector]: CDTParser initialized [2024-11-22 02:35:05,611 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded/rekcba_nxt.2.M4-1.c [2024-11-22 02:35:07,139 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-22 02:35:07,652 INFO L384 CDTParser]: Found 1 translation units. [2024-11-22 02:35:07,653 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/rekcba_nxt.2.M4-1.c [2024-11-22 02:35:07,700 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0ea3be8ee/6c8e5735a1ec48acb5513744a0beba08/FLAGe637f71ae [2024-11-22 02:35:07,716 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0ea3be8ee/6c8e5735a1ec48acb5513744a0beba08 [2024-11-22 02:35:07,719 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-22 02:35:07,720 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-22 02:35:07,724 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-22 02:35:07,724 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-22 02:35:07,729 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-22 02:35:07,729 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:35:07" (1/1) ... [2024-11-22 02:35:07,730 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1e9df894 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:35:07, skipping insertion in model container [2024-11-22 02:35:07,730 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:35:07" (1/1) ... [2024-11-22 02:35:07,859 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-22 02:35:08,137 WARN L250 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_nxt.2.M4-1.c[2195,2208] [2024-11-22 02:35:09,281 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 02:35:09,318 INFO L200 MainTranslator]: Completed pre-run [2024-11-22 02:35:09,327 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"/tmp/aaaa/nxt.ok2.i","-S") [51] [2024-11-22 02:35:09,334 WARN L250 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_nxt.2.M4-1.c[2195,2208] [2024-11-22 02:35:10,325 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 02:35:10,553 INFO L204 MainTranslator]: Completed translation [2024-11-22 02:35:10,557 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:35:10 WrapperNode [2024-11-22 02:35:10,557 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-22 02:35:10,558 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-22 02:35:10,558 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-22 02:35:10,558 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-22 02:35:10,574 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:35:10" (1/1) ... [2024-11-22 02:35:11,145 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:35:10" (1/1) ... [2024-11-22 02:35:13,502 INFO L138 Inliner]: procedures = 59, calls = 18819, calls flagged for inlining = 24, calls inlined = 24, statements flattened = 40935 [2024-11-22 02:35:13,506 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-22 02:35:13,507 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-22 02:35:13,507 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-22 02:35:13,507 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-22 02:35:13,529 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:35:10" (1/1) ... [2024-11-22 02:35:13,530 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:35:10" (1/1) ... [2024-11-22 02:35:14,269 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:35:10" (1/1) ... [2024-11-22 02:35:14,560 INFO L175 MemorySlicer]: Split 14537 memory accesses to 20 slices as follows [2, 194, 17, 9, 8, 2784, 2, 3812, 2400, 1676, 1252, 852, 325, 429, 325, 429, 7, 8, 2, 4]. 26 percent of accesses are in the largest equivalence class. The 664 initializations are split as follows [2, 0, 8, 4, 0, 96, 0, 96, 8, 8, 4, 4, 108, 108, 108, 108, 2, 0, 0, 0]. The 761 writes are split as follows [0, 98, 1, 1, 4, 96, 1, 96, 8, 8, 4, 4, 109, 107, 109, 107, 3, 4, 1, 0]. [2024-11-22 02:35:14,561 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:35:10" (1/1) ... [2024-11-22 02:35:14,561 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:35:10" (1/1) ... [2024-11-22 02:35:15,499 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:35:10" (1/1) ... [2024-11-22 02:35:15,592 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:35:10" (1/1) ... [2024-11-22 02:35:15,750 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:35:10" (1/1) ... [2024-11-22 02:35:15,992 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:35:10" (1/1) ... [2024-11-22 02:35:16,217 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-22 02:35:16,218 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-22 02:35:16,218 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-22 02:35:16,219 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-22 02:35:16,219 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:35:10" (1/1) ... [2024-11-22 02:35:16,225 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 02:35:16,235 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 02:35:16,254 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-22 02:35:16,256 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-22 02:35:16,298 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-22 02:35:16,298 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2024-11-22 02:35:16,298 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2024-11-22 02:35:16,298 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_nxtway_gs_mode [2024-11-22 02:35:16,298 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_nxtway_gs_mode [2024-11-22 02:35:16,298 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-11-22 02:35:16,298 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-11-22 02:35:16,298 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-11-22 02:35:16,298 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-11-22 02:35:16,298 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2024-11-22 02:35:16,299 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2024-11-22 02:35:16,299 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2024-11-22 02:35:16,299 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#7 [2024-11-22 02:35:16,299 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#8 [2024-11-22 02:35:16,299 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#9 [2024-11-22 02:35:16,299 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#10 [2024-11-22 02:35:16,299 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#11 [2024-11-22 02:35:16,300 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#12 [2024-11-22 02:35:16,300 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#13 [2024-11-22 02:35:16,300 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#14 [2024-11-22 02:35:16,300 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#15 [2024-11-22 02:35:16,300 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#16 [2024-11-22 02:35:16,300 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#17 [2024-11-22 02:35:16,300 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#18 [2024-11-22 02:35:16,301 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#19 [2024-11-22 02:35:16,301 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-22 02:35:16,301 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2024-11-22 02:35:16,301 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2024-11-22 02:35:16,301 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2024-11-22 02:35:16,301 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2024-11-22 02:35:16,301 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_obstacle_flag [2024-11-22 02:35:16,302 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_obstacle_flag [2024-11-22 02:35:16,302 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-22 02:35:16,302 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-22 02:35:16,302 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-22 02:35:16,302 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-22 02:35:16,302 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-22 02:35:16,302 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-22 02:35:16,303 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-11-22 02:35:16,303 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-11-22 02:35:16,303 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2024-11-22 02:35:16,303 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2024-11-22 02:35:16,303 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#10 [2024-11-22 02:35:16,303 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#11 [2024-11-22 02:35:16,303 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#12 [2024-11-22 02:35:16,303 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#13 [2024-11-22 02:35:16,303 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#14 [2024-11-22 02:35:16,303 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#15 [2024-11-22 02:35:16,304 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#16 [2024-11-22 02:35:16,304 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#17 [2024-11-22 02:35:16,304 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#18 [2024-11-22 02:35:16,304 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#19 [2024-11-22 02:35:16,304 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2024-11-22 02:35:16,304 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2024-11-22 02:35:16,304 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_gyro_sensor [2024-11-22 02:35:16,305 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_gyro_sensor [2024-11-22 02:35:16,305 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts1 [2024-11-22 02:35:16,305 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts1 [2024-11-22 02:35:16,305 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts2 [2024-11-22 02:35:16,305 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts2 [2024-11-22 02:35:16,305 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-22 02:35:16,305 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_Background [2024-11-22 02:35:16,305 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_Background [2024-11-22 02:35:16,306 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-22 02:35:16,306 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-22 02:35:16,306 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-22 02:35:16,306 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-22 02:35:16,306 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-22 02:35:16,306 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-22 02:35:16,306 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-11-22 02:35:16,306 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-11-22 02:35:16,307 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2024-11-22 02:35:16,307 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2024-11-22 02:35:16,307 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#10 [2024-11-22 02:35:16,307 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#11 [2024-11-22 02:35:16,307 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#12 [2024-11-22 02:35:16,307 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#13 [2024-11-22 02:35:16,307 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#14 [2024-11-22 02:35:16,307 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#15 [2024-11-22 02:35:16,308 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#16 [2024-11-22 02:35:16,308 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#17 [2024-11-22 02:35:16,308 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#18 [2024-11-22 02:35:16,308 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#19 [2024-11-22 02:35:16,308 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2024-11-22 02:35:16,308 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2024-11-22 02:35:16,308 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_speed [2024-11-22 02:35:16,308 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_speed [2024-11-22 02:35:16,308 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-22 02:35:16,308 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-22 02:35:16,308 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-22 02:35:16,308 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-22 02:35:16,309 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-22 02:35:16,309 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-22 02:35:16,309 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-22 02:35:16,309 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-22 02:35:16,309 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-22 02:35:16,309 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-11-22 02:35:16,309 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-11-22 02:35:16,309 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2024-11-22 02:35:16,310 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2024-11-22 02:35:16,310 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2024-11-22 02:35:16,310 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2024-11-22 02:35:16,310 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2024-11-22 02:35:16,310 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2024-11-22 02:35:16,310 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2024-11-22 02:35:16,310 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#16 [2024-11-22 02:35:16,310 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#17 [2024-11-22 02:35:16,311 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#18 [2024-11-22 02:35:16,311 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#19 [2024-11-22 02:35:16,311 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-22 02:35:16,311 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-22 02:35:16,311 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_systick_ms [2024-11-22 02:35:16,311 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_systick_ms [2024-11-22 02:35:16,311 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2024-11-22 02:35:16,312 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2024-11-22 02:35:16,312 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtway_gs_mode [2024-11-22 02:35:16,312 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtway_gs_mode [2024-11-22 02:35:18,155 INFO L238 CfgBuilder]: Building ICFG [2024-11-22 02:35:18,157 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-22 02:35:48,531 INFO L? ?]: Removed 279 outVars from TransFormulas that were not future-live. [2024-11-22 02:35:48,532 INFO L287 CfgBuilder]: Performing block encoding [2024-11-22 02:35:48,664 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-22 02:35:48,665 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-22 02:35:48,665 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:35:48 BoogieIcfgContainer [2024-11-22 02:35:48,665 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-22 02:35:48,669 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-22 02:35:48,669 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-22 02:35:48,672 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-22 02:35:48,673 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 02:35:07" (1/3) ... [2024-11-22 02:35:48,673 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d894719 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 02:35:48, skipping insertion in model container [2024-11-22 02:35:48,673 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:35:10" (2/3) ... [2024-11-22 02:35:48,674 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d894719 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 02:35:48, skipping insertion in model container [2024-11-22 02:35:48,674 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:35:48" (3/3) ... [2024-11-22 02:35:48,676 INFO L112 eAbstractionObserver]: Analyzing ICFG rekcba_nxt.2.M4-1.c [2024-11-22 02:35:48,696 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-22 02:35:48,697 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-22 02:35:49,016 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 02:35:49,025 INFO L333 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, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, 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=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@52e86811, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 02:35:49,026 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-22 02:35:49,068 INFO L276 IsEmpty]: Start isEmpty. Operand has 12240 states, 7996 states have (on average 1.3156578289144572) internal successors, (10520), 8109 states have internal predecessors, (10520), 4226 states have call successors, (4226), 16 states have call predecessors, (4226), 16 states have return successors, (4226), 4224 states have call predecessors, (4226), 4226 states have call successors, (4226) [2024-11-22 02:35:49,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4617 [2024-11-22 02:35:49,472 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:35:49,475 INFO L215 NwaCegarLoop]: trace histogram [337, 337, 337, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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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1, 1, 1] [2024-11-22 02:35:49,476 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:35:49,481 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:35:49,484 INFO L85 PathProgramCache]: Analyzing trace with hash -1774636817, now seen corresponding path program 1 times [2024-11-22 02:35:49,493 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:35:49,494 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [538677770] [2024-11-22 02:35:49,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:35:49,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:36:02,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:36:09,016 INFO L134 CoverageAnalysis]: Checked inductivity of 226464 backedges. 0 proven. 672 refuted. 0 times theorem prover too weak. 225792 trivial. 0 not checked. [2024-11-22 02:36:09,018 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:36:09,019 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [538677770] [2024-11-22 02:36:09,020 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [538677770] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 02:36:09,020 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1168096070] [2024-11-22 02:36:09,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:36:09,023 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 02:36:09,023 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 02:36:09,026 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 02:36:09,027 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process