./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 e2fb8bed Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/seq-mthreaded/rekcba_nxt.2.M4-2.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 1074202fec0087dade7e2e551bbdbc8477fa7ac87a060024146de6dec8d276ec --- Real Ultimate output --- This is Ultimate 0.3.0-?-e2fb8be-m [2025-03-08 06:08:01,759 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-08 06:08:01,823 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-03-08 06:08:01,829 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-08 06:08:01,829 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-08 06:08:01,853 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-08 06:08:01,854 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-08 06:08:01,854 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-08 06:08:01,855 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-08 06:08:01,855 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-08 06:08:01,856 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-08 06:08:01,856 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-08 06:08:01,856 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-08 06:08:01,856 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-08 06:08:01,856 INFO L153 SettingsManager]: * Use SBE=true [2025-03-08 06:08:01,857 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-08 06:08:01,857 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-08 06:08:01,857 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-08 06:08:01,857 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-08 06:08:01,857 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-08 06:08:01,857 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-08 06:08:01,857 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-08 06:08:01,857 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-08 06:08:01,857 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-08 06:08:01,857 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-08 06:08:01,857 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-08 06:08:01,857 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-08 06:08:01,857 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-08 06:08:01,858 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-08 06:08:01,858 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-08 06:08:01,858 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-08 06:08:01,858 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-08 06:08:01,858 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 06:08:01,858 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-08 06:08:01,858 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-08 06:08:01,858 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-08 06:08:01,858 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-08 06:08:01,858 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-08 06:08:01,858 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-08 06:08:01,858 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-08 06:08:01,859 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-08 06:08:01,859 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-08 06:08:01,859 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-08 06:08:01,859 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/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 [2025-03-08 06:08:02,118 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-08 06:08:02,125 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-08 06:08:02,129 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-08 06:08:02,130 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-08 06:08:02,131 INFO L274 PluginConnector]: CDTParser initialized [2025-03-08 06:08:02,132 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded/rekcba_nxt.2.M4-2.c [2025-03-08 06:08:03,369 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c9f7c91bf/708527c5ab2644b79419f14bf1567aeb/FLAGa17cb0bcb [2025-03-08 06:08:03,963 INFO L384 CDTParser]: Found 1 translation units. [2025-03-08 06:08:03,964 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/rekcba_nxt.2.M4-2.c [2025-03-08 06:08:04,014 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c9f7c91bf/708527c5ab2644b79419f14bf1567aeb/FLAGa17cb0bcb [2025-03-08 06:08:04,031 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c9f7c91bf/708527c5ab2644b79419f14bf1567aeb [2025-03-08 06:08:04,035 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-08 06:08:04,036 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-08 06:08:04,037 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-08 06:08:04,037 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-08 06:08:04,041 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-08 06:08:04,043 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 06:08:04" (1/1) ... [2025-03-08 06:08:04,045 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56d5c793 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:08:04, skipping insertion in model container [2025-03-08 06:08:04,045 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 06:08:04" (1/1) ... [2025-03-08 06:08:04,176 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-08 06:08:04,449 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/rekcba_nxt.2.M4-2.c[2278,2291] [2025-03-08 06:08:05,381 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 06:08:05,449 INFO L200 MainTranslator]: Completed pre-run [2025-03-08 06:08:05,455 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"/tmp/aaaa/nxt.bug2.i","-S") [51] [2025-03-08 06:08:05,463 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/rekcba_nxt.2.M4-2.c[2278,2291] [2025-03-08 06:08:06,339 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 06:08:06,378 INFO L204 MainTranslator]: Completed translation [2025-03-08 06:08:06,379 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:08:06 WrapperNode [2025-03-08 06:08:06,379 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-08 06:08:06,380 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-08 06:08:06,380 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-08 06:08:06,380 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-08 06:08:06,386 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:08:06" (1/1) ... [2025-03-08 06:08:06,678 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:08:06" (1/1) ... [2025-03-08 06:08:08,113 INFO L138 Inliner]: procedures = 63, calls = 19692, calls flagged for inlining = 24, calls inlined = 24, statements flattened = 42452 [2025-03-08 06:08:08,114 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-08 06:08:08,115 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-08 06:08:08,115 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-08 06:08:08,115 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-08 06:08:08,129 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:08:06" (1/1) ... [2025-03-08 06:08:08,129 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:08:06" (1/1) ... [2025-03-08 06:08:08,531 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:08:06" (1/1) ... [2025-03-08 06:08:08,760 INFO L175 MemorySlicer]: Split 15291 memory accesses to 22 slices as follows [8, 2, 194, 17, 9, 4, 2784, 3812, 2400, 1676, 1252, 852, 325, 429, 325, 429, 325, 8, 429, 2, 7, 2]. 25 percent of accesses are in the largest equivalence class. The 880 initializations are split as follows [0, 2, 0, 8, 4, 0, 96, 96, 8, 8, 4, 4, 108, 108, 108, 108, 108, 0, 108, 0, 2, 0]. The 977 writes are split as follows [4, 0, 98, 1, 1, 0, 96, 96, 8, 8, 4, 4, 109, 107, 109, 107, 109, 4, 107, 1, 3, 1]. [2025-03-08 06:08:08,760 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:08:06" (1/1) ... [2025-03-08 06:08:08,761 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:08:06" (1/1) ... [2025-03-08 06:08:09,512 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:08:06" (1/1) ... [2025-03-08 06:08:09,564 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:08:06" (1/1) ... [2025-03-08 06:08:09,656 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:08:06" (1/1) ... [2025-03-08 06:08:09,736 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:08:06" (1/1) ... [2025-03-08 06:08:09,956 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-08 06:08:09,958 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-08 06:08:09,958 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-08 06:08:09,958 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-08 06:08:09,959 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:08:06" (1/1) ... [2025-03-08 06:08:09,963 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 06:08:09,973 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 06:08:09,986 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-03-08 06:08:09,988 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-03-08 06:08:10,005 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-08 06:08:10,005 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2025-03-08 06:08:10,005 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2025-03-08 06:08:10,005 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_nxtway_gs_mode [2025-03-08 06:08:10,005 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_nxtway_gs_mode [2025-03-08 06:08:10,005 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2025-03-08 06:08:10,005 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2025-03-08 06:08:10,005 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2025-03-08 06:08:10,005 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2025-03-08 06:08:10,005 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2025-03-08 06:08:10,005 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2025-03-08 06:08:10,005 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2025-03-08 06:08:10,005 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#7 [2025-03-08 06:08:10,005 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#8 [2025-03-08 06:08:10,005 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#9 [2025-03-08 06:08:10,006 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#10 [2025-03-08 06:08:10,006 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#11 [2025-03-08 06:08:10,006 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#12 [2025-03-08 06:08:10,006 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#13 [2025-03-08 06:08:10,006 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#14 [2025-03-08 06:08:10,006 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#15 [2025-03-08 06:08:10,006 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#16 [2025-03-08 06:08:10,006 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#17 [2025-03-08 06:08:10,006 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#18 [2025-03-08 06:08:10,006 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#19 [2025-03-08 06:08:10,007 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#20 [2025-03-08 06:08:10,007 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#21 [2025-03-08 06:08:10,007 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-03-08 06:08:10,007 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2025-03-08 06:08:10,007 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2025-03-08 06:08:10,007 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2025-03-08 06:08:10,007 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2025-03-08 06:08:10,007 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_observer_obstacle_flag [2025-03-08 06:08:10,007 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_observer_obstacle_flag [2025-03-08 06:08:10,007 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_obstacle_flag [2025-03-08 06:08:10,007 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_obstacle_flag [2025-03-08 06:08:10,007 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-03-08 06:08:10,007 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-03-08 06:08:10,007 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-03-08 06:08:10,007 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-03-08 06:08:10,007 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2025-03-08 06:08:10,007 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2025-03-08 06:08:10,007 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2025-03-08 06:08:10,007 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2025-03-08 06:08:10,007 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2025-03-08 06:08:10,007 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2025-03-08 06:08:10,007 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#10 [2025-03-08 06:08:10,007 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#11 [2025-03-08 06:08:10,007 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#12 [2025-03-08 06:08:10,007 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#13 [2025-03-08 06:08:10,007 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#14 [2025-03-08 06:08:10,007 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#15 [2025-03-08 06:08:10,007 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#16 [2025-03-08 06:08:10,007 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#17 [2025-03-08 06:08:10,008 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#18 [2025-03-08 06:08:10,008 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#19 [2025-03-08 06:08:10,008 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#20 [2025-03-08 06:08:10,008 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#21 [2025-03-08 06:08:10,008 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2025-03-08 06:08:10,008 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2025-03-08 06:08:10,008 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_gyro_sensor [2025-03-08 06:08:10,008 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_gyro_sensor [2025-03-08 06:08:10,008 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts1 [2025-03-08 06:08:10,008 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts1 [2025-03-08 06:08:10,008 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts2 [2025-03-08 06:08:10,008 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts2 [2025-03-08 06:08:10,008 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-03-08 06:08:10,008 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_Background [2025-03-08 06:08:10,008 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_Background [2025-03-08 06:08:10,008 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-03-08 06:08:10,008 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-03-08 06:08:10,008 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-03-08 06:08:10,008 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-03-08 06:08:10,008 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2025-03-08 06:08:10,008 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2025-03-08 06:08:10,008 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2025-03-08 06:08:10,008 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2025-03-08 06:08:10,008 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2025-03-08 06:08:10,008 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2025-03-08 06:08:10,008 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#10 [2025-03-08 06:08:10,008 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#11 [2025-03-08 06:08:10,008 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#12 [2025-03-08 06:08:10,008 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#13 [2025-03-08 06:08:10,008 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#14 [2025-03-08 06:08:10,008 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#15 [2025-03-08 06:08:10,008 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#16 [2025-03-08 06:08:10,009 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#17 [2025-03-08 06:08:10,009 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#18 [2025-03-08 06:08:10,009 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#19 [2025-03-08 06:08:10,009 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#20 [2025-03-08 06:08:10,009 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#21 [2025-03-08 06:08:10,009 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2025-03-08 06:08:10,009 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2025-03-08 06:08:10,009 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_speed [2025-03-08 06:08:10,009 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_speed [2025-03-08 06:08:10,009 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_obstacle_flag [2025-03-08 06:08:10,009 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_obstacle_flag [2025-03-08 06:08:10,009 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-03-08 06:08:10,010 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-03-08 06:08:10,010 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-08 06:08:10,010 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-03-08 06:08:10,010 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-03-08 06:08:10,010 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-03-08 06:08:10,010 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-03-08 06:08:10,010 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2025-03-08 06:08:10,010 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2025-03-08 06:08:10,010 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2025-03-08 06:08:10,011 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2025-03-08 06:08:10,011 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2025-03-08 06:08:10,011 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2025-03-08 06:08:10,011 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2025-03-08 06:08:10,011 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2025-03-08 06:08:10,011 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2025-03-08 06:08:10,011 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2025-03-08 06:08:10,011 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2025-03-08 06:08:10,011 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#16 [2025-03-08 06:08:10,011 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#17 [2025-03-08 06:08:10,011 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#18 [2025-03-08 06:08:10,011 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#19 [2025-03-08 06:08:10,011 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#20 [2025-03-08 06:08:10,011 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#21 [2025-03-08 06:08:10,011 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-08 06:08:10,012 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-08 06:08:10,012 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_systick_ms [2025-03-08 06:08:10,012 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_systick_ms [2025-03-08 06:08:10,012 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2025-03-08 06:08:10,012 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2025-03-08 06:08:10,012 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtway_gs_mode [2025-03-08 06:08:10,012 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtway_gs_mode [2025-03-08 06:08:11,471 INFO L256 CfgBuilder]: Building ICFG [2025-03-08 06:08:11,473 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-08 06:08:11,799 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L225: call ULTIMATE.dealloc(OSEK_Task_ts1_~#pwm_l~0#1.base, OSEK_Task_ts1_~#pwm_l~0#1.offset);havoc OSEK_Task_ts1_~#pwm_l~0#1.base, OSEK_Task_ts1_~#pwm_l~0#1.offset;call ULTIMATE.dealloc(OSEK_Task_ts1_~#pwm_r~0#1.base, OSEK_Task_ts1_~#pwm_r~0#1.offset);havoc OSEK_Task_ts1_~#pwm_r~0#1.base, OSEK_Task_ts1_~#pwm_r~0#1.offset; [2025-03-08 06:08:11,800 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L93: call ULTIMATE.dealloc(balance_control_~#tmp~0#1.base, balance_control_~#tmp~0#1.offset);havoc balance_control_~#tmp~0#1.base, balance_control_~#tmp~0#1.offset;call ULTIMATE.dealloc(balance_control_~#tmp_theta_0~0#1.base, balance_control_~#tmp_theta_0~0#1.offset);havoc balance_control_~#tmp_theta_0~0#1.base, balance_control_~#tmp_theta_0~0#1.offset; [2025-03-08 06:08:37,608 INFO L? ?]: Removed 303 outVars from TransFormulas that were not future-live. [2025-03-08 06:08:37,608 INFO L307 CfgBuilder]: Performing block encoding [2025-03-08 06:08:37,731 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-08 06:08:37,731 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-08 06:08:37,732 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 06:08:37 BoogieIcfgContainer [2025-03-08 06:08:37,732 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-08 06:08:37,734 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-08 06:08:37,734 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-08 06:08:37,737 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-08 06:08:37,738 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.03 06:08:04" (1/3) ... [2025-03-08 06:08:37,738 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3080459f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 06:08:37, skipping insertion in model container [2025-03-08 06:08:37,739 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:08:06" (2/3) ... [2025-03-08 06:08:37,740 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3080459f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 06:08:37, skipping insertion in model container [2025-03-08 06:08:37,740 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 06:08:37" (3/3) ... [2025-03-08 06:08:37,741 INFO L128 eAbstractionObserver]: Analyzing ICFG rekcba_nxt.2.M4-2.c [2025-03-08 06:08:37,752 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-08 06:08:37,755 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. [2025-03-08 06:08:38,002 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-08 06:08:38,013 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;@9aad012, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-08 06:08:38,013 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-03-08 06:08:38,044 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) [2025-03-08 06:08:38,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5259 [2025-03-08 06:08:38,531 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 06:08:38,534 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] === [2025-03-08 06:08:38,539 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 06:08:38,540 INFO L85 PathProgramCache]: Analyzing trace with hash 297040045, now seen corresponding path program 1 times [2025-03-08 06:08:38,547 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 06:08:38,548 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [225748339] [2025-03-08 06:08:38,549 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 06:08:38,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 06:08:55,731 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5258 statements into 1 equivalence classes. [2025-03-08 06:08:55,961 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5258 of 5258 statements. [2025-03-08 06:08:55,961 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 06:08:55,961 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 06:09:00,419 INFO L134 CoverageAnalysis]: Checked inductivity of 393384 backedges. 0 proven. 886 refuted. 0 times theorem prover too weak. 392498 trivial. 0 not checked. [2025-03-08 06:09:00,420 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 06:09:00,420 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [225748339] [2025-03-08 06:09:00,421 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [225748339] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 06:09:00,421 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1173317060] [2025-03-08 06:09:00,422 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 06:09:00,422 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 06:09:00,422 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 06:09:00,424 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-08 06:09:00,426 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-03-08 06:09:19,455 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5258 statements into 1 equivalence classes. [2025-03-08 06:09:21,088 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5258 of 5258 statements. [2025-03-08 06:09:21,088 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 06:09:21,088 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 06:09:21,200 INFO L256 TraceCheckSpWp]: Trace formula consists of 16602 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-03-08 06:09:21,340 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 06:09:21,538 INFO L134 CoverageAnalysis]: Checked inductivity of 393384 backedges. 886 proven. 0 refuted. 0 times theorem prover too weak. 392498 trivial. 0 not checked. [2025-03-08 06:09:21,539 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-08 06:09:21,539 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1173317060] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 06:09:21,539 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-08 06:09:21,540 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2025-03-08 06:09:21,542 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1932249872] [2025-03-08 06:09:21,542 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 06:09:21,552 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-03-08 06:09:21,553 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 06:09:21,575 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-03-08 06:09:21,576 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-08 06:09:21,617 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) [2025-03-08 06:09:22,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 06:09:22,111 INFO L93 Difference]: Finished difference Result 24971 states and 43001 transitions. [2025-03-08 06:09:22,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-08 06:09:22,119 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 [2025-03-08 06:09:22,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 06:09:22,235 INFO L225 Difference]: With dead ends: 24971 [2025-03-08 06:09:22,236 INFO L226 Difference]: Without dead ends: 12480 [2025-03-08 06:09:22,321 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 [2025-03-08 06:09:22,325 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 [2025-03-08 06:09:22,326 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] [2025-03-08 06:09:22,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12480 states. [2025-03-08 06:09:28,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12480 to 12480. [2025-03-08 06:09:28,073 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) [2025-03-08 06:09:28,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12480 states to 12480 states and 19330 transitions. [2025-03-08 06:09:28,154 INFO L78 Accepts]: Start accepts. Automaton has 12480 states and 19330 transitions. Word has length 5258 [2025-03-08 06:09:28,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 06:09:28,157 INFO L471 AbstractCegarLoop]: Abstraction has 12480 states and 19330 transitions. [2025-03-08 06:09:28,159 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) [2025-03-08 06:09:28,159 INFO L276 IsEmpty]: Start isEmpty. Operand 12480 states and 19330 transitions. [2025-03-08 06:09:28,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5259 [2025-03-08 06:09:28,360 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 06:09:28,363 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/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-03-08 06:09:28,564 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2025-03-08 06:09:28,564 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 06:09:28,566 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 06:09:28,568 INFO L85 PathProgramCache]: Analyzing trace with hash -418397357, now seen corresponding path program 1 times [2025-03-08 06:09:28,568 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 06:09:28,568 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1117829673] [2025-03-08 06:09:28,568 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 06:09:28,568 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms