./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/seq-mthreaded/rekcba_nxt.2.M4-2.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.2.M4-2.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 1074202fec0087dade7e2e551bbdbc8477fa7ac87a060024146de6dec8d276ec --- Real Ultimate output --- This is Ultimate 0.3.0-?-551b009-m [2025-01-09 04:31:20,822 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-09 04:31:20,881 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-01-09 04:31:20,885 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-09 04:31:20,886 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-09 04:31:20,904 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-09 04:31:20,904 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-09 04:31:20,904 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-09 04:31:20,905 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-01-09 04:31:20,905 INFO L153 SettingsManager]: * Use memory slicer=true [2025-01-09 04:31:20,905 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-09 04:31:20,905 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-09 04:31:20,905 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-09 04:31:20,905 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-09 04:31:20,905 INFO L153 SettingsManager]: * Use SBE=true [2025-01-09 04:31:20,905 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-09 04:31:20,906 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-09 04:31:20,906 INFO L153 SettingsManager]: * sizeof long=4 [2025-01-09 04:31:20,906 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-09 04:31:20,906 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-01-09 04:31:20,906 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-09 04:31:20,906 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-09 04:31:20,906 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-09 04:31:20,908 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-09 04:31:20,908 INFO L153 SettingsManager]: * sizeof long double=12 [2025-01-09 04:31:20,908 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-09 04:31:20,908 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-09 04:31:20,908 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-09 04:31:20,908 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-01-09 04:31:20,908 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 04:31:20,908 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 04:31:20,908 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 04:31:20,908 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 04:31:20,908 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-09 04:31:20,908 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 04:31:20,908 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 04:31:20,908 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 04:31:20,908 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 04:31:20,909 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-09 04:31:20,909 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-09 04:31:20,909 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-09 04:31:20,909 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-09 04:31:20,909 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-01-09 04:31:20,909 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-01-09 04:31:20,909 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-09 04:31:20,909 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-01-09 04:31:20,909 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-01-09 04:31:20,909 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-01-09 04:31:20,909 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 -> 1074202fec0087dade7e2e551bbdbc8477fa7ac87a060024146de6dec8d276ec [2025-01-09 04:31:21,153 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-09 04:31:21,159 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-09 04:31:21,161 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-09 04:31:21,162 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-09 04:31:21,163 INFO L274 PluginConnector]: CDTParser initialized [2025-01-09 04:31:21,163 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded/rekcba_nxt.2.M4-2.c [2025-01-09 04:31:22,364 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/cca4262ba/a6497808f9b6463e9201b94609b57d62/FLAGda8f9acda [2025-01-09 04:31:22,912 INFO L384 CDTParser]: Found 1 translation units. [2025-01-09 04:31:22,913 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/rekcba_nxt.2.M4-2.c [2025-01-09 04:31:22,959 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/cca4262ba/a6497808f9b6463e9201b94609b57d62/FLAGda8f9acda [2025-01-09 04:31:23,441 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/cca4262ba/a6497808f9b6463e9201b94609b57d62 [2025-01-09 04:31:23,443 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-09 04:31:23,444 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-09 04:31:23,445 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-09 04:31:23,445 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-09 04:31:23,448 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-09 04:31:23,449 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 04:31:23" (1/1) ... [2025-01-09 04:31:23,450 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@69ed43b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:31:23, skipping insertion in model container [2025-01-09 04:31:23,450 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 04:31:23" (1/1) ... [2025-01-09 04:31:23,540 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-09 04:31:23,746 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.2.M4-2.c[2278,2291] [2025-01-09 04:31:24,598 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 04:31:24,645 INFO L200 MainTranslator]: Completed pre-run [2025-01-09 04:31:24,650 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"/tmp/aaaa/nxt.bug2.i","-S") [51] [2025-01-09 04:31:24,656 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.2.M4-2.c[2278,2291] [2025-01-09 04:31:25,425 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 04:31:25,465 INFO L204 MainTranslator]: Completed translation [2025-01-09 04:31:25,466 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:31:25 WrapperNode [2025-01-09 04:31:25,466 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-09 04:31:25,468 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-09 04:31:25,468 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-09 04:31:25,470 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-09 04:31:25,475 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:31:25" (1/1) ... [2025-01-09 04:31:25,708 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:31:25" (1/1) ... [2025-01-09 04:31:27,365 INFO L138 Inliner]: procedures = 63, calls = 19692, calls flagged for inlining = 24, calls inlined = 24, statements flattened = 42452 [2025-01-09 04:31:27,366 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-09 04:31:27,367 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-09 04:31:27,367 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-09 04:31:27,370 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-09 04:31:27,378 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:31:25" (1/1) ... [2025-01-09 04:31:27,379 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:31:25" (1/1) ... [2025-01-09 04:31:27,752 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:31:25" (1/1) ... [2025-01-09 04:31:27,938 INFO L175 MemorySlicer]: Split 15291 memory accesses to 22 slices as follows [8, 2, 194, 17, 9, 2784, 2, 3812, 2, 2400, 1676, 1252, 852, 325, 429, 325, 4, 429, 7, 325, 8, 429]. 25 percent of accesses are in the largest equivalence class. The 880 initializations are split as follows [0, 2, 0, 8, 4, 96, 0, 96, 0, 8, 8, 4, 4, 108, 108, 108, 0, 108, 2, 108, 0, 108]. The 977 writes are split as follows [4, 0, 98, 1, 1, 96, 1, 96, 1, 8, 8, 4, 4, 109, 107, 109, 0, 107, 3, 109, 4, 107]. [2025-01-09 04:31:27,938 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:31:25" (1/1) ... [2025-01-09 04:31:27,938 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:31:25" (1/1) ... [2025-01-09 04:31:28,441 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:31:25" (1/1) ... [2025-01-09 04:31:28,496 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:31:25" (1/1) ... [2025-01-09 04:31:28,583 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:31:25" (1/1) ... [2025-01-09 04:31:28,723 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:31:25" (1/1) ... [2025-01-09 04:31:28,807 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:31:25" (1/1) ... [2025-01-09 04:31:29,062 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-09 04:31:29,063 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-09 04:31:29,063 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-09 04:31:29,063 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-09 04:31:29,064 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:31:25" (1/1) ... [2025-01-09 04:31:29,069 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 04:31:29,082 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 04:31:29,102 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 04:31:29,107 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 04:31:29,125 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-09 04:31:29,126 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2025-01-09 04:31:29,126 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2025-01-09 04:31:29,126 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_nxtway_gs_mode [2025-01-09 04:31:29,126 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_nxtway_gs_mode [2025-01-09 04:31:29,126 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2025-01-09 04:31:29,126 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2025-01-09 04:31:29,126 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2025-01-09 04:31:29,126 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2025-01-09 04:31:29,126 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2025-01-09 04:31:29,127 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2025-01-09 04:31:29,127 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2025-01-09 04:31:29,127 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#7 [2025-01-09 04:31:29,127 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#8 [2025-01-09 04:31:29,127 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#9 [2025-01-09 04:31:29,127 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#10 [2025-01-09 04:31:29,127 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#11 [2025-01-09 04:31:29,127 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#12 [2025-01-09 04:31:29,127 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#13 [2025-01-09 04:31:29,127 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#14 [2025-01-09 04:31:29,127 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#15 [2025-01-09 04:31:29,128 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#16 [2025-01-09 04:31:29,128 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#17 [2025-01-09 04:31:29,128 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#18 [2025-01-09 04:31:29,128 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#19 [2025-01-09 04:31:29,128 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#20 [2025-01-09 04:31:29,128 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#21 [2025-01-09 04:31:29,128 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-01-09 04:31:29,128 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2025-01-09 04:31:29,128 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2025-01-09 04:31:29,128 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2025-01-09 04:31:29,128 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2025-01-09 04:31:29,128 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_observer_obstacle_flag [2025-01-09 04:31:29,128 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_observer_obstacle_flag [2025-01-09 04:31:29,128 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_obstacle_flag [2025-01-09 04:31:29,128 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_obstacle_flag [2025-01-09 04:31:29,128 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-01-09 04:31:29,128 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-01-09 04:31:29,128 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-01-09 04:31:29,128 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-01-09 04:31:29,128 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2025-01-09 04:31:29,128 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2025-01-09 04:31:29,129 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2025-01-09 04:31:29,129 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2025-01-09 04:31:29,129 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2025-01-09 04:31:29,129 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2025-01-09 04:31:29,129 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#10 [2025-01-09 04:31:29,129 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#11 [2025-01-09 04:31:29,129 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#12 [2025-01-09 04:31:29,129 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#13 [2025-01-09 04:31:29,129 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#14 [2025-01-09 04:31:29,129 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#15 [2025-01-09 04:31:29,129 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#16 [2025-01-09 04:31:29,129 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#17 [2025-01-09 04:31:29,129 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#18 [2025-01-09 04:31:29,129 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#19 [2025-01-09 04:31:29,129 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#20 [2025-01-09 04:31:29,129 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#21 [2025-01-09 04:31:29,129 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2025-01-09 04:31:29,129 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2025-01-09 04:31:29,129 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_gyro_sensor [2025-01-09 04:31:29,129 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_gyro_sensor [2025-01-09 04:31:29,129 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts1 [2025-01-09 04:31:29,129 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts1 [2025-01-09 04:31:29,129 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts2 [2025-01-09 04:31:29,130 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts2 [2025-01-09 04:31:29,130 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-01-09 04:31:29,130 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_Background [2025-01-09 04:31:29,130 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_Background [2025-01-09 04:31:29,130 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-01-09 04:31:29,131 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-01-09 04:31:29,131 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-01-09 04:31:29,131 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-01-09 04:31:29,131 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2025-01-09 04:31:29,131 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2025-01-09 04:31:29,131 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2025-01-09 04:31:29,131 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2025-01-09 04:31:29,131 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2025-01-09 04:31:29,131 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2025-01-09 04:31:29,131 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#10 [2025-01-09 04:31:29,131 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#11 [2025-01-09 04:31:29,132 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#12 [2025-01-09 04:31:29,132 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#13 [2025-01-09 04:31:29,132 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#14 [2025-01-09 04:31:29,132 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#15 [2025-01-09 04:31:29,132 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#16 [2025-01-09 04:31:29,132 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#17 [2025-01-09 04:31:29,132 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#18 [2025-01-09 04:31:29,132 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#19 [2025-01-09 04:31:29,132 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#20 [2025-01-09 04:31:29,132 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#21 [2025-01-09 04:31:29,132 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2025-01-09 04:31:29,133 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2025-01-09 04:31:29,133 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_speed [2025-01-09 04:31:29,133 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_speed [2025-01-09 04:31:29,133 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_obstacle_flag [2025-01-09 04:31:29,133 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_obstacle_flag [2025-01-09 04:31:29,133 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-01-09 04:31:29,133 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-01-09 04:31:29,133 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-01-09 04:31:29,133 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-01-09 04:31:29,133 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-01-09 04:31:29,133 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-01-09 04:31:29,134 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-01-09 04:31:29,134 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2025-01-09 04:31:29,134 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2025-01-09 04:31:29,134 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2025-01-09 04:31:29,134 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2025-01-09 04:31:29,134 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2025-01-09 04:31:29,134 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2025-01-09 04:31:29,134 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2025-01-09 04:31:29,134 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2025-01-09 04:31:29,134 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2025-01-09 04:31:29,134 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2025-01-09 04:31:29,134 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2025-01-09 04:31:29,134 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#16 [2025-01-09 04:31:29,135 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#17 [2025-01-09 04:31:29,135 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#18 [2025-01-09 04:31:29,135 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#19 [2025-01-09 04:31:29,135 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#20 [2025-01-09 04:31:29,135 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#21 [2025-01-09 04:31:29,135 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-09 04:31:29,135 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-09 04:31:29,135 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_systick_ms [2025-01-09 04:31:29,135 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_systick_ms [2025-01-09 04:31:29,135 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2025-01-09 04:31:29,135 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2025-01-09 04:31:29,135 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtway_gs_mode [2025-01-09 04:31:29,135 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtway_gs_mode [2025-01-09 04:31:30,620 INFO L234 CfgBuilder]: Building ICFG [2025-01-09 04:31:30,622 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-09 04:31:57,355 INFO L? ?]: Removed 303 outVars from TransFormulas that were not future-live. [2025-01-09 04:31:57,355 INFO L283 CfgBuilder]: Performing block encoding [2025-01-09 04:31:57,479 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-09 04:31:57,480 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-01-09 04:31:57,480 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 04:31:57 BoogieIcfgContainer [2025-01-09 04:31:57,480 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-09 04:31:57,482 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-09 04:31:57,482 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-09 04:31:57,485 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-09 04:31:57,486 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.01 04:31:23" (1/3) ... [2025-01-09 04:31:57,486 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@387af38a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 04:31:57, skipping insertion in model container [2025-01-09 04:31:57,486 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:31:25" (2/3) ... [2025-01-09 04:31:57,486 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@387af38a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 04:31:57, skipping insertion in model container [2025-01-09 04:31:57,487 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 04:31:57" (3/3) ... [2025-01-09 04:31:57,487 INFO L128 eAbstractionObserver]: Analyzing ICFG rekcba_nxt.2.M4-2.c [2025-01-09 04:31:57,501 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-09 04:31:57,505 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG rekcba_nxt.2.M4-2.c that has 19 procedures, 12488 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2025-01-09 04:31:57,758 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-09 04:31:57,770 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;@4870fe84, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-09 04:31:57,771 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-01-09 04:31:57,800 INFO L276 IsEmpty]: Start isEmpty. Operand has 12488 states, 8125 states have (on average 1.3113846153846154) internal successors, (10655), 8238 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 04:31:58,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5259 [2025-01-09 04:31:58,198 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 04:31:58,201 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 04:31:58,207 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 04:31:58,209 INFO L85 PathProgramCache]: Analyzing trace with hash 1566316333, now seen corresponding path program 1 times [2025-01-09 04:31:58,214 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 04:31:58,214 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [537445995] [2025-01-09 04:31:58,215 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 04:31:58,215 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 04:32:15,960 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5258 statements into 1 equivalence classes. [2025-01-09 04:32:16,188 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5258 of 5258 statements. [2025-01-09 04:32:16,189 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 04:32:16,189 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 04:32:20,182 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 04:32:20,183 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 04:32:20,183 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [537445995] [2025-01-09 04:32:20,184 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [537445995] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 04:32:20,184 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1127693721] [2025-01-09 04:32:20,185 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 04:32:20,185 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 04:32:20,185 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 04:32:20,187 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 04:32:20,189 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 04:32:41,012 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5258 statements into 1 equivalence classes. [2025-01-09 04:32:42,737 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5258 of 5258 statements. [2025-01-09 04:32:42,738 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 04:32:42,738 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 04:32:42,840 INFO L256 TraceCheckSpWp]: Trace formula consists of 16602 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-01-09 04:32:42,981 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 04:32:43,156 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 04:32:43,157 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 04:32:43,157 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1127693721] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 04:32:43,157 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 04:32:43,158 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2025-01-09 04:32:43,159 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2061807445] [2025-01-09 04:32:43,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 04:32:43,167 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-01-09 04:32:43,168 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 04:32:43,184 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-01-09 04:32:43,184 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-01-09 04:32:43,209 INFO L87 Difference]: Start difference. First operand has 12488 states, 8125 states have (on average 1.3113846153846154) internal successors, (10655), 8238 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 04:32:43,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 04:32:43,685 INFO L93 Difference]: Finished difference Result 24971 states and 43001 transitions. [2025-01-09 04:32:43,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-09 04:32:43,689 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 04:32:43,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 04:32:43,801 INFO L225 Difference]: With dead ends: 24971 [2025-01-09 04:32:43,802 INFO L226 Difference]: Without dead ends: 12480 [2025-01-09 04:32:43,875 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 04:32:43,880 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 04:32:43,882 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 04:32:43,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12480 states. [2025-01-09 04:32:50,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12480 to 12480. [2025-01-09 04:32:50,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12480 states, 8118 states have (on average 1.3112835673811283) internal successors, (10645), 8231 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 04:32:50,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12480 states to 12480 states and 19330 transitions. [2025-01-09 04:32:51,023 INFO L78 Accepts]: Start accepts. Automaton has 12480 states and 19330 transitions. Word has length 5258 [2025-01-09 04:32:51,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 04:32:51,026 INFO L471 AbstractCegarLoop]: Abstraction has 12480 states and 19330 transitions. [2025-01-09 04:32:51,032 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 04:32:51,033 INFO L276 IsEmpty]: Start isEmpty. Operand 12480 states and 19330 transitions. [2025-01-09 04:32:51,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5259 [2025-01-09 04:32:51,242 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 04:32:51,244 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 L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2025-01-09 04:32:51,445 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 04:32:51,445 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 04:32:51,447 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 04:32:51,448 INFO L85 PathProgramCache]: Analyzing trace with hash 135441529, now seen corresponding path program 1 times [2025-01-09 04:32:51,448 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 04:32:51,448 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [837056029] [2025-01-09 04:32:51,449 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 04:32:51,449 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms