./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/seq-mthreaded/rekcba_nxt.3.M4.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 551b0097 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/seq-mthreaded/rekcba_nxt.3.M4.c -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/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 17a6dd75e60112a7f7af78ca3548f5d14d93f1e305c1fc4e0acf996889e6f17b --- Real Ultimate output --- This is Ultimate 0.3.0-?-551b009-m [2025-01-09 04:31:43,385 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-09 04:31:43,444 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-01-09 04:31:43,447 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-09 04:31:43,448 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-09 04:31:43,461 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-09 04:31:43,462 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-09 04:31:43,462 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-09 04:31:43,462 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-01-09 04:31:43,462 INFO L153 SettingsManager]: * Use memory slicer=true [2025-01-09 04:31:43,463 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-09 04:31:43,463 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-09 04:31:43,463 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-09 04:31:43,463 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-09 04:31:43,463 INFO L153 SettingsManager]: * Use SBE=true [2025-01-09 04:31:43,463 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-09 04:31:43,463 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-09 04:31:43,463 INFO L153 SettingsManager]: * sizeof long=4 [2025-01-09 04:31:43,463 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-09 04:31:43,464 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-01-09 04:31:43,464 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-09 04:31:43,464 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-09 04:31:43,464 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-09 04:31:43,464 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-09 04:31:43,464 INFO L153 SettingsManager]: * sizeof long double=12 [2025-01-09 04:31:43,464 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-09 04:31:43,464 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-09 04:31:43,464 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-09 04:31:43,464 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-01-09 04:31:43,464 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 04:31:43,464 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 04:31:43,464 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 04:31:43,464 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 04:31:43,464 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-09 04:31:43,464 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 04:31:43,464 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 04:31:43,464 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 04:31:43,464 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 04:31:43,465 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-09 04:31:43,465 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-09 04:31:43,465 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-09 04:31:43,465 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-09 04:31:43,465 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-01-09 04:31:43,465 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-01-09 04:31:43,465 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-09 04:31:43,465 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-01-09 04:31:43,465 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-01-09 04:31:43,465 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-01-09 04:31:43,465 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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-jdk21/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 -> 17a6dd75e60112a7f7af78ca3548f5d14d93f1e305c1fc4e0acf996889e6f17b [2025-01-09 04:31:43,669 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-09 04:31:43,677 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-09 04:31:43,680 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-09 04:31:43,681 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-09 04:31:43,681 INFO L274 PluginConnector]: CDTParser initialized [2025-01-09 04:31:43,682 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded/rekcba_nxt.3.M4.c [2025-01-09 04:31:44,837 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/2fbe0ba46/d4b7a86130f648f2a499013db24c15af/FLAGe08a36c69 [2025-01-09 04:31:45,399 INFO L384 CDTParser]: Found 1 translation units. [2025-01-09 04:31:45,400 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/rekcba_nxt.3.M4.c [2025-01-09 04:31:45,441 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/2fbe0ba46/d4b7a86130f648f2a499013db24c15af/FLAGe08a36c69 [2025-01-09 04:31:45,451 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/2fbe0ba46/d4b7a86130f648f2a499013db24c15af [2025-01-09 04:31:45,453 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-09 04:31:45,454 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-09 04:31:45,455 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-09 04:31:45,455 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-09 04:31:45,458 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-09 04:31:45,459 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 04:31:45" (1/1) ... [2025-01-09 04:31:45,459 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@20c5212c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:31:45, skipping insertion in model container [2025-01-09 04:31:45,459 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 04:31:45" (1/1) ... [2025-01-09 04:31:45,570 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-09 04:31:45,750 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/rekcba_nxt.3.M4.c[2275,2288] [2025-01-09 04:31:46,541 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 04:31:46,567 INFO L200 MainTranslator]: Completed pre-run [2025-01-09 04:31:46,575 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"/tmp/aaaa/nxt.ok3.i","-S") [51] [2025-01-09 04:31:46,583 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/rekcba_nxt.3.M4.c[2275,2288] [2025-01-09 04:31:47,183 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 04:31:47,275 INFO L204 MainTranslator]: Completed translation [2025-01-09 04:31:47,276 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:31:47 WrapperNode [2025-01-09 04:31:47,276 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-09 04:31:47,277 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-09 04:31:47,277 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-09 04:31:47,277 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-09 04:31:47,283 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:31:47" (1/1) ... [2025-01-09 04:31:47,528 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:31:47" (1/1) ... [2025-01-09 04:31:49,084 INFO L138 Inliner]: procedures = 63, calls = 19692, calls flagged for inlining = 24, calls inlined = 24, statements flattened = 42452 [2025-01-09 04:31:49,085 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-09 04:31:49,085 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-09 04:31:49,085 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-09 04:31:49,085 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-09 04:31:49,094 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:31:47" (1/1) ... [2025-01-09 04:31:49,094 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:31:47" (1/1) ... [2025-01-09 04:31:49,372 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:31:47" (1/1) ... [2025-01-09 04:31:49,550 INFO L175 MemorySlicer]: Split 15291 memory accesses to 22 slices as follows [2, 2, 194, 17, 9, 2784, 3812, 2400, 1676, 8, 1252, 852, 325, 429, 325, 429, 325, 429, 2, 8, 4, 7]. 25 percent of accesses are in the largest equivalence class. The 880 initializations are split as follows [0, 2, 0, 8, 4, 96, 96, 8, 8, 0, 4, 4, 108, 108, 108, 108, 108, 108, 0, 0, 0, 2]. The 977 writes are split as follows [1, 0, 98, 1, 1, 96, 96, 8, 8, 4, 4, 4, 109, 107, 109, 107, 109, 107, 1, 4, 0, 3]. [2025-01-09 04:31:49,550 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:31:47" (1/1) ... [2025-01-09 04:31:49,550 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:31:47" (1/1) ... [2025-01-09 04:31:50,327 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:31:47" (1/1) ... [2025-01-09 04:31:50,377 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:31:47" (1/1) ... [2025-01-09 04:31:50,473 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:31:47" (1/1) ... [2025-01-09 04:31:50,557 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:31:47" (1/1) ... [2025-01-09 04:31:50,679 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:31:47" (1/1) ... [2025-01-09 04:31:50,857 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-09 04:31:50,857 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-09 04:31:50,857 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-09 04:31:50,857 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-09 04:31:50,858 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:31:47" (1/1) ... [2025-01-09 04:31:50,866 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 04:31:50,877 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 04:31:50,892 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-01-09 04:31:50,896 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-01-09 04:31:50,909 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-09 04:31:50,909 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2025-01-09 04:31:50,910 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2025-01-09 04:31:50,910 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_nxtway_gs_mode [2025-01-09 04:31:50,910 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_nxtway_gs_mode [2025-01-09 04:31:50,910 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2025-01-09 04:31:50,910 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2025-01-09 04:31:50,910 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2025-01-09 04:31:50,910 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2025-01-09 04:31:50,910 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2025-01-09 04:31:50,910 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2025-01-09 04:31:50,910 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2025-01-09 04:31:50,910 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#7 [2025-01-09 04:31:50,910 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#8 [2025-01-09 04:31:50,910 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#9 [2025-01-09 04:31:50,910 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#10 [2025-01-09 04:31:50,910 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#11 [2025-01-09 04:31:50,910 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#12 [2025-01-09 04:31:50,910 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#13 [2025-01-09 04:31:50,910 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#14 [2025-01-09 04:31:50,910 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#15 [2025-01-09 04:31:50,910 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#16 [2025-01-09 04:31:50,910 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#17 [2025-01-09 04:31:50,910 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#18 [2025-01-09 04:31:50,910 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#19 [2025-01-09 04:31:50,910 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#20 [2025-01-09 04:31:50,910 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#21 [2025-01-09 04:31:50,910 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-01-09 04:31:50,910 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2025-01-09 04:31:50,910 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2025-01-09 04:31:50,910 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2025-01-09 04:31:50,910 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2025-01-09 04:31:50,911 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_observer_obstacle_flag [2025-01-09 04:31:50,911 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_observer_obstacle_flag [2025-01-09 04:31:50,911 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_obstacle_flag [2025-01-09 04:31:50,911 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_obstacle_flag [2025-01-09 04:31:50,911 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-01-09 04:31:50,911 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-01-09 04:31:50,911 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-01-09 04:31:50,911 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-01-09 04:31:50,911 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2025-01-09 04:31:50,911 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2025-01-09 04:31:50,911 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2025-01-09 04:31:50,911 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2025-01-09 04:31:50,911 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2025-01-09 04:31:50,911 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2025-01-09 04:31:50,911 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#10 [2025-01-09 04:31:50,911 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#11 [2025-01-09 04:31:50,911 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#12 [2025-01-09 04:31:50,911 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#13 [2025-01-09 04:31:50,911 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#14 [2025-01-09 04:31:50,911 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#15 [2025-01-09 04:31:50,911 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#16 [2025-01-09 04:31:50,911 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#17 [2025-01-09 04:31:50,911 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#18 [2025-01-09 04:31:50,917 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#19 [2025-01-09 04:31:50,918 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#20 [2025-01-09 04:31:50,918 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#21 [2025-01-09 04:31:50,918 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2025-01-09 04:31:50,918 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2025-01-09 04:31:50,918 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_gyro_sensor [2025-01-09 04:31:50,918 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_gyro_sensor [2025-01-09 04:31:50,918 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts1 [2025-01-09 04:31:50,918 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts1 [2025-01-09 04:31:50,918 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts2 [2025-01-09 04:31:50,918 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts2 [2025-01-09 04:31:50,918 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-01-09 04:31:50,918 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_Background [2025-01-09 04:31:50,918 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_Background [2025-01-09 04:31:50,918 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-01-09 04:31:50,918 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-01-09 04:31:50,918 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-01-09 04:31:50,918 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-01-09 04:31:50,918 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2025-01-09 04:31:50,918 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2025-01-09 04:31:50,918 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2025-01-09 04:31:50,918 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2025-01-09 04:31:50,918 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2025-01-09 04:31:50,918 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2025-01-09 04:31:50,918 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#10 [2025-01-09 04:31:50,918 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#11 [2025-01-09 04:31:50,919 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#12 [2025-01-09 04:31:50,919 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#13 [2025-01-09 04:31:50,919 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#14 [2025-01-09 04:31:50,919 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#15 [2025-01-09 04:31:50,919 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#16 [2025-01-09 04:31:50,919 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#17 [2025-01-09 04:31:50,919 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#18 [2025-01-09 04:31:50,919 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#19 [2025-01-09 04:31:50,919 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#20 [2025-01-09 04:31:50,919 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#21 [2025-01-09 04:31:50,919 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2025-01-09 04:31:50,919 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2025-01-09 04:31:50,919 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_speed [2025-01-09 04:31:50,919 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_speed [2025-01-09 04:31:50,919 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_obstacle_flag [2025-01-09 04:31:50,919 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_obstacle_flag [2025-01-09 04:31:50,919 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-01-09 04:31:50,919 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-01-09 04:31:50,919 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-01-09 04:31:50,919 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-01-09 04:31:50,920 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-01-09 04:31:50,920 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-01-09 04:31:50,920 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-01-09 04:31:50,920 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2025-01-09 04:31:50,920 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2025-01-09 04:31:50,920 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2025-01-09 04:31:50,920 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2025-01-09 04:31:50,920 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2025-01-09 04:31:50,920 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2025-01-09 04:31:50,920 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2025-01-09 04:31:50,920 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2025-01-09 04:31:50,920 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2025-01-09 04:31:50,920 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2025-01-09 04:31:50,920 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2025-01-09 04:31:50,920 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#16 [2025-01-09 04:31:50,920 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#17 [2025-01-09 04:31:50,920 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#18 [2025-01-09 04:31:50,920 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#19 [2025-01-09 04:31:50,920 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#20 [2025-01-09 04:31:50,920 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#21 [2025-01-09 04:31:50,920 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-09 04:31:50,920 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-09 04:31:50,920 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_systick_ms [2025-01-09 04:31:50,920 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_systick_ms [2025-01-09 04:31:50,920 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2025-01-09 04:31:50,920 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2025-01-09 04:31:50,920 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtway_gs_mode [2025-01-09 04:31:50,920 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtway_gs_mode [2025-01-09 04:31:52,310 INFO L234 CfgBuilder]: Building ICFG [2025-01-09 04:31:52,312 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-09 04:32:18,530 INFO L? ?]: Removed 303 outVars from TransFormulas that were not future-live. [2025-01-09 04:32:18,530 INFO L283 CfgBuilder]: Performing block encoding [2025-01-09 04:32:18,642 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-09 04:32:18,642 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-01-09 04:32:18,643 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 04:32:18 BoogieIcfgContainer [2025-01-09 04:32:18,643 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-09 04:32:18,645 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-09 04:32:18,645 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-09 04:32:18,648 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-09 04:32:18,649 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.01 04:31:45" (1/3) ... [2025-01-09 04:32:18,650 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@861b1d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 04:32:18, skipping insertion in model container [2025-01-09 04:32:18,650 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:31:47" (2/3) ... [2025-01-09 04:32:18,650 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@861b1d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 04:32:18, skipping insertion in model container [2025-01-09 04:32:18,651 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 04:32:18" (3/3) ... [2025-01-09 04:32:18,652 INFO L128 eAbstractionObserver]: Analyzing ICFG rekcba_nxt.3.M4.c [2025-01-09 04:32:18,662 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-09 04:32:18,664 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG rekcba_nxt.3.M4.c that has 19 procedures, 12488 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2025-01-09 04:32:18,893 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-09 04:32:18,902 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;@6538a66e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-09 04:32:18,903 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-01-09 04:32:18,932 INFO L276 IsEmpty]: Start isEmpty. Operand has 12488 states, 8125 states have (on average 1.3113846153846154) internal successors, (10655), 8237 states have internal predecessors, (10655), 4343 states have call successors, (4343), 18 states have call predecessors, (4343), 18 states have return successors, (4343), 4341 states have call predecessors, (4343), 4343 states have call successors, (4343) [2025-01-09 04:32:19,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5259 [2025-01-09 04:32:19,410 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 04:32:19,412 INFO L218 NwaCegarLoop]: trace histogram [444, 444, 444, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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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INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 04:32:19,418 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 04:32:19,420 INFO L85 PathProgramCache]: Analyzing trace with hash 1566316333, now seen corresponding path program 1 times [2025-01-09 04:32:19,426 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 04:32:19,427 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [781361105] [2025-01-09 04:32:19,428 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 04:32:19,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 04:32:36,844 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5258 statements into 1 equivalence classes. [2025-01-09 04:32:37,036 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5258 of 5258 statements. [2025-01-09 04:32:37,037 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 04:32:37,037 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 04:32:41,335 INFO L134 CoverageAnalysis]: Checked inductivity of 393384 backedges. 0 proven. 886 refuted. 0 times theorem prover too weak. 392498 trivial. 0 not checked. [2025-01-09 04:32:41,336 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 04:32:41,336 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [781361105] [2025-01-09 04:32:41,336 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [781361105] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 04:32:41,336 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [686704324] [2025-01-09 04:32:41,338 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 04:32:41,339 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 04:32:41,339 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 04:32:41,342 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-09 04:32:41,343 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-01-09 04:33:00,793 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5258 statements into 1 equivalence classes. [2025-01-09 04:33:02,748 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5258 of 5258 statements. [2025-01-09 04:33:02,748 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 04:33:02,748 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 04:33:02,855 INFO L256 TraceCheckSpWp]: Trace formula consists of 16602 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-01-09 04:33:02,950 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 04:33:03,183 INFO L134 CoverageAnalysis]: Checked inductivity of 393384 backedges. 886 proven. 0 refuted. 0 times theorem prover too weak. 392498 trivial. 0 not checked. [2025-01-09 04:33:03,184 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 04:33:03,185 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [686704324] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 04:33:03,185 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 04:33:03,186 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2025-01-09 04:33:03,187 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [949594218] [2025-01-09 04:33:03,188 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 04:33:03,198 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-01-09 04:33:03,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 04:33:03,217 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-01-09 04:33:03,218 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-01-09 04:33:03,257 INFO L87 Difference]: Start difference. First operand has 12488 states, 8125 states have (on average 1.3113846153846154) internal successors, (10655), 8237 states have internal predecessors, (10655), 4343 states have call successors, (4343), 18 states have call predecessors, (4343), 18 states have return successors, (4343), 4341 states have call predecessors, (4343), 4343 states have call successors, (4343) Second operand has 2 states, 2 states have (on average 1521.0) internal successors, (3042), 2 states have internal predecessors, (3042), 2 states have call successors, (445), 2 states have call predecessors, (445), 1 states have return successors, (444), 1 states have call predecessors, (444), 2 states have call successors, (444) [2025-01-09 04:33:03,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 04:33:03,720 INFO L93 Difference]: Finished difference Result 24971 states and 43001 transitions. [2025-01-09 04:33:03,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-09 04:33:03,727 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 1521.0) internal successors, (3042), 2 states have internal predecessors, (3042), 2 states have call successors, (445), 2 states have call predecessors, (445), 1 states have return successors, (444), 1 states have call predecessors, (444), 2 states have call successors, (444) Word has length 5258 [2025-01-09 04:33:03,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 04:33:03,825 INFO L225 Difference]: With dead ends: 24971 [2025-01-09 04:33:03,825 INFO L226 Difference]: Without dead ends: 12480 [2025-01-09 04:33:03,888 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5259 GetRequests, 5259 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-01-09 04:33:03,891 INFO L435 NwaCegarLoop]: 19339 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 19339 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-09 04:33:03,892 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 19339 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 04:33:03,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12480 states. [2025-01-09 04:33:09,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12480 to 12480. [2025-01-09 04:33:09,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12480 states, 8118 states have (on average 1.3112835673811283) internal successors, (10645), 8230 states have internal predecessors, (10645), 4343 states have call successors, (4343), 18 states have call predecessors, (4343), 18 states have return successors, (4342), 4340 states have call predecessors, (4342), 4342 states have call successors, (4342) [2025-01-09 04:33:09,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12480 states to 12480 states and 19330 transitions. [2025-01-09 04:33:09,614 INFO L78 Accepts]: Start accepts. Automaton has 12480 states and 19330 transitions. Word has length 5258 [2025-01-09 04:33:09,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 04:33:09,617 INFO L471 AbstractCegarLoop]: Abstraction has 12480 states and 19330 transitions. [2025-01-09 04:33:09,619 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 1521.0) internal successors, (3042), 2 states have internal predecessors, (3042), 2 states have call successors, (445), 2 states have call predecessors, (445), 1 states have return successors, (444), 1 states have call predecessors, (444), 2 states have call successors, (444) [2025-01-09 04:33:09,624 INFO L276 IsEmpty]: Start isEmpty. Operand 12480 states and 19330 transitions. [2025-01-09 04:33:09,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5259 [2025-01-09 04:33:09,815 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 04:33:09,817 INFO L218 NwaCegarLoop]: trace histogram [444, 444, 444, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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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INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-01-09 04:33:10,018 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2025-01-09 04:33:10,019 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 04:33:10,021 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 04:33:10,022 INFO L85 PathProgramCache]: Analyzing trace with hash 135441529, now seen corresponding path program 1 times [2025-01-09 04:33:10,022 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 04:33:10,022 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1271238169] [2025-01-09 04:33:10,022 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 04:33:10,023 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms