./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/seq-mthreaded/rekh_aso.2.M1-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8fc3dc66 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/rekh_aso.2.M1-1.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash dc59d2eb5280d2e1e7e9c76bdd35770d97977523b6f11f8f4ccd72ffe423d428 --- Real Ultimate output --- This is Ultimate 0.3.0-?-8fc3dc6-m [2025-03-16 19:16:52,121 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-16 19:16:52,176 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-03-16 19:16:52,183 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-16 19:16:52,183 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-16 19:16:52,205 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-16 19:16:52,206 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-16 19:16:52,207 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-16 19:16:52,207 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-16 19:16:52,207 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-16 19:16:52,208 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-16 19:16:52,208 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-16 19:16:52,208 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-16 19:16:52,208 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-16 19:16:52,209 INFO L153 SettingsManager]: * Use SBE=true [2025-03-16 19:16:52,209 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-16 19:16:52,209 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-16 19:16:52,209 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-16 19:16:52,209 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-16 19:16:52,209 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-16 19:16:52,209 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-16 19:16:52,209 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-16 19:16:52,210 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-16 19:16:52,210 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-16 19:16:52,210 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-16 19:16:52,210 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-16 19:16:52,210 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-16 19:16:52,210 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-16 19:16:52,210 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-16 19:16:52,210 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-16 19:16:52,210 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-16 19:16:52,210 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-16 19:16:52,210 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-16 19:16:52,211 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-16 19:16:52,211 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-16 19:16:52,211 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-16 19:16:52,211 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-16 19:16:52,211 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-16 19:16:52,211 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-16 19:16:52,211 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-16 19:16:52,211 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-16 19:16:52,211 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-16 19:16:52,212 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-16 19:16:52,212 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 -> dc59d2eb5280d2e1e7e9c76bdd35770d97977523b6f11f8f4ccd72ffe423d428 [2025-03-16 19:16:52,493 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-16 19:16:52,502 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-16 19:16:52,504 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-16 19:16:52,505 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-16 19:16:52,506 INFO L274 PluginConnector]: CDTParser initialized [2025-03-16 19:16:52,507 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded/rekh_aso.2.M1-1.c [2025-03-16 19:16:53,656 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1f45564bc/2946ac8835a24b9da5c38bc24b2bbc82/FLAG99578b51e [2025-03-16 19:16:54,086 INFO L384 CDTParser]: Found 1 translation units. [2025-03-16 19:16:54,086 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/rekh_aso.2.M1-1.c [2025-03-16 19:16:54,114 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1f45564bc/2946ac8835a24b9da5c38bc24b2bbc82/FLAG99578b51e [2025-03-16 19:16:54,230 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1f45564bc/2946ac8835a24b9da5c38bc24b2bbc82 [2025-03-16 19:16:54,232 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-16 19:16:54,233 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-16 19:16:54,234 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-16 19:16:54,234 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-16 19:16:54,237 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-16 19:16:54,237 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.03 07:16:54" (1/1) ... [2025-03-16 19:16:54,238 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6dd28bc7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 07:16:54, skipping insertion in model container [2025-03-16 19:16:54,238 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.03 07:16:54" (1/1) ... [2025-03-16 19:16:54,282 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-16 19:16:54,396 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/rekh_aso.2.M1-1.c[1807,1820] [2025-03-16 19:16:54,750 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-16 19:16:54,791 INFO L200 MainTranslator]: Completed pre-run [2025-03-16 19:16:54,797 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"/tmp/aaaa/aso.ok2.i","-S") [39] [2025-03-16 19:16:54,801 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/rekh_aso.2.M1-1.c[1807,1820] [2025-03-16 19:16:55,053 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-16 19:16:55,083 INFO L204 MainTranslator]: Completed translation [2025-03-16 19:16:55,085 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 07:16:55 WrapperNode [2025-03-16 19:16:55,085 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-16 19:16:55,086 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-16 19:16:55,086 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-16 19:16:55,086 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-16 19:16:55,091 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 07:16:55" (1/1) ... [2025-03-16 19:16:55,154 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 07:16:55" (1/1) ... [2025-03-16 19:16:55,516 INFO L138 Inliner]: procedures = 70, calls = 5728, calls flagged for inlining = 26, calls inlined = 26, statements flattened = 12648 [2025-03-16 19:16:55,517 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-16 19:16:55,518 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-16 19:16:55,518 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-16 19:16:55,518 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-16 19:16:55,525 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 07:16:55" (1/1) ... [2025-03-16 19:16:55,525 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 07:16:55" (1/1) ... [2025-03-16 19:16:55,594 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 07:16:55" (1/1) ... [2025-03-16 19:16:55,673 INFO L175 MemorySlicer]: Split 4157 memory accesses to 27 slices as follows [4, 8, 2, 2, 379, 455, 113, 113, 180, 203, 180, 203, 180, 8, 203, 180, 203, 180, 203, 180, 2, 203, 180, 203, 180, 203, 7]. 11 percent of accesses are in the largest equivalence class. The 544 initializations are split as follows [0, 0, 0, 2, 27, 27, 27, 27, 27, 27, 27, 27, 27, 0, 27, 27, 27, 27, 27, 27, 0, 27, 27, 27, 27, 27, 2]. The 553 writes are split as follows [0, 4, 1, 0, 27, 27, 27, 27, 28, 26, 28, 26, 28, 4, 26, 28, 26, 28, 26, 28, 1, 26, 28, 26, 28, 26, 3]. [2025-03-16 19:16:55,674 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 07:16:55" (1/1) ... [2025-03-16 19:16:55,674 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 07:16:55" (1/1) ... [2025-03-16 19:16:55,843 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 07:16:55" (1/1) ... [2025-03-16 19:16:55,860 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 07:16:55" (1/1) ... [2025-03-16 19:16:55,882 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 07:16:55" (1/1) ... [2025-03-16 19:16:55,960 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 07:16:55" (1/1) ... [2025-03-16 19:16:56,008 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-16 19:16:56,009 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-16 19:16:56,009 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-16 19:16:56,009 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-16 19:16:56,010 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 07:16:55" (1/1) ... [2025-03-16 19:16:56,015 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-16 19:16:56,025 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-16 19:16:56,036 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) [2025-03-16 19:16:56,038 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 [2025-03-16 19:16:56,055 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-16 19:16:56,055 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_trans [2025-03-16 19:16:56,055 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_trans [2025-03-16 19:16:56,055 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_cmd_forward [2025-03-16 19:16:56,055 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_cmd_forward [2025-03-16 19:16:56,055 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2025-03-16 19:16:56,055 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2025-03-16 19:16:56,055 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_nxtway_gs_mode [2025-03-16 19:16:56,055 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_nxtway_gs_mode [2025-03-16 19:16:56,055 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-03-16 19:16:56,055 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2025-03-16 19:16:56,055 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2025-03-16 19:16:56,055 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2025-03-16 19:16:56,055 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2025-03-16 19:16:56,055 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read___startrek_current_priority [2025-03-16 19:16:56,055 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read___startrek_current_priority [2025-03-16 19:16:56,055 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_obstacle_flag [2025-03-16 19:16:56,055 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_obstacle_flag [2025-03-16 19:16:56,055 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-03-16 19:16:56,055 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-03-16 19:16:56,055 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-03-16 19:16:56,055 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-03-16 19:16:56,055 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2025-03-16 19:16:56,055 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2025-03-16 19:16:56,055 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2025-03-16 19:16:56,055 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2025-03-16 19:16:56,055 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2025-03-16 19:16:56,056 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2025-03-16 19:16:56,056 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#10 [2025-03-16 19:16:56,056 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#11 [2025-03-16 19:16:56,056 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#12 [2025-03-16 19:16:56,056 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#13 [2025-03-16 19:16:56,056 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#14 [2025-03-16 19:16:56,056 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#15 [2025-03-16 19:16:56,056 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#16 [2025-03-16 19:16:56,056 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#17 [2025-03-16 19:16:56,056 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#18 [2025-03-16 19:16:56,056 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#19 [2025-03-16 19:16:56,056 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#20 [2025-03-16 19:16:56,056 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#21 [2025-03-16 19:16:56,056 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#22 [2025-03-16 19:16:56,056 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#23 [2025-03-16 19:16:56,056 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#24 [2025-03-16 19:16:56,056 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#25 [2025-03-16 19:16:56,056 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#26 [2025-03-16 19:16:56,056 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2025-03-16 19:16:56,056 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2025-03-16 19:16:56,056 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_gyro_sensor [2025-03-16 19:16:56,056 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_gyro_sensor [2025-03-16 19:16:56,056 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_cmd_turn [2025-03-16 19:16:56,056 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_cmd_turn [2025-03-16 19:16:56,056 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write___startrek_current_priority [2025-03-16 19:16:56,056 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write___startrek_current_priority [2025-03-16 19:16:56,056 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts1 [2025-03-16 19:16:56,056 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts1 [2025-03-16 19:16:56,059 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts2 [2025-03-16 19:16:56,059 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts2 [2025-03-16 19:16:56,059 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts3 [2025-03-16 19:16:56,059 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts3 [2025-03-16 19:16:56,059 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-03-16 19:16:56,060 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-03-16 19:16:56,060 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-03-16 19:16:56,060 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-03-16 19:16:56,060 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-03-16 19:16:56,060 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2025-03-16 19:16:56,060 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2025-03-16 19:16:56,060 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2025-03-16 19:16:56,060 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2025-03-16 19:16:56,061 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2025-03-16 19:16:56,061 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2025-03-16 19:16:56,061 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#10 [2025-03-16 19:16:56,061 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#11 [2025-03-16 19:16:56,061 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#12 [2025-03-16 19:16:56,061 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#13 [2025-03-16 19:16:56,061 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#14 [2025-03-16 19:16:56,061 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#15 [2025-03-16 19:16:56,062 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#16 [2025-03-16 19:16:56,062 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#17 [2025-03-16 19:16:56,062 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#18 [2025-03-16 19:16:56,062 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#19 [2025-03-16 19:16:56,062 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#20 [2025-03-16 19:16:56,062 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#21 [2025-03-16 19:16:56,062 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#22 [2025-03-16 19:16:56,062 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#23 [2025-03-16 19:16:56,062 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#24 [2025-03-16 19:16:56,062 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#25 [2025-03-16 19:16:56,062 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#26 [2025-03-16 19:16:56,062 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2025-03-16 19:16:56,062 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2025-03-16 19:16:56,062 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_speed [2025-03-16 19:16:56,062 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_speed [2025-03-16 19:16:56,062 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_cmd_forward [2025-03-16 19:16:56,062 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_cmd_forward [2025-03-16 19:16:56,062 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_obstacle_flag [2025-03-16 19:16:56,062 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_obstacle_flag [2025-03-16 19:16:56,062 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-03-16 19:16:56,062 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-03-16 19:16:56,063 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-16 19:16:56,063 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-03-16 19:16:56,063 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-03-16 19:16:56,063 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-03-16 19:16:56,063 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-03-16 19:16:56,063 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2025-03-16 19:16:56,063 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2025-03-16 19:16:56,063 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2025-03-16 19:16:56,063 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2025-03-16 19:16:56,063 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2025-03-16 19:16:56,063 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2025-03-16 19:16:56,063 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2025-03-16 19:16:56,063 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2025-03-16 19:16:56,063 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2025-03-16 19:16:56,063 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2025-03-16 19:16:56,063 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2025-03-16 19:16:56,063 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#16 [2025-03-16 19:16:56,063 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#17 [2025-03-16 19:16:56,063 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#18 [2025-03-16 19:16:56,063 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#19 [2025-03-16 19:16:56,063 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#20 [2025-03-16 19:16:56,063 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#21 [2025-03-16 19:16:56,063 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#22 [2025-03-16 19:16:56,063 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#23 [2025-03-16 19:16:56,063 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#24 [2025-03-16 19:16:56,063 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#25 [2025-03-16 19:16:56,063 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#26 [2025-03-16 19:16:56,063 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-16 19:16:56,063 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-16 19:16:56,063 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_systick_ms [2025-03-16 19:16:56,063 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_systick_ms [2025-03-16 19:16:56,063 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2025-03-16 19:16:56,063 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2025-03-16 19:16:56,063 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtway_gs_mode [2025-03-16 19:16:56,063 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtway_gs_mode [2025-03-16 19:16:56,063 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_cmd_turn [2025-03-16 19:16:56,063 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_cmd_turn [2025-03-16 19:16:56,644 INFO L256 CfgBuilder]: Building ICFG [2025-03-16 19:16:56,646 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-16 19:16:56,996 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L235: 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; [2025-03-16 19:16:56,997 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L96: 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; [2025-03-16 19:17:05,469 INFO L? ?]: Removed 475 outVars from TransFormulas that were not future-live. [2025-03-16 19:17:05,470 INFO L307 CfgBuilder]: Performing block encoding [2025-03-16 19:17:05,538 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-16 19:17:05,539 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-16 19:17:05,539 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.03 07:17:05 BoogieIcfgContainer [2025-03-16 19:17:05,539 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-16 19:17:05,541 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-16 19:17:05,541 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-16 19:17:05,546 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-16 19:17:05,546 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.03 07:16:54" (1/3) ... [2025-03-16 19:17:05,547 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59b5ba8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.03 07:17:05, skipping insertion in model container [2025-03-16 19:17:05,547 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 07:16:55" (2/3) ... [2025-03-16 19:17:05,548 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59b5ba8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.03 07:17:05, skipping insertion in model container [2025-03-16 19:17:05,548 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.03 07:17:05" (3/3) ... [2025-03-16 19:17:05,549 INFO L128 eAbstractionObserver]: Analyzing ICFG rekh_aso.2.M1-1.c [2025-03-16 19:17:05,559 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-16 19:17:05,563 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG rekh_aso.2.M1-1.c that has 25 procedures, 3428 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2025-03-16 19:17:05,690 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-16 19:17:05,701 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;@7d8c24bb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-16 19:17:05,701 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-03-16 19:17:05,713 INFO L276 IsEmpty]: Start isEmpty. Operand has 3428 states, 1896 states have (on average 1.1777426160337552) internal successors, (2233), 2026 states have internal predecessors, (2233), 1506 states have call successors, (1506), 24 states have call predecessors, (1506), 24 states have return successors, (1506), 1406 states have call predecessors, (1506), 1506 states have call successors, (1506) [2025-03-16 19:17:05,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1373 [2025-03-16 19:17:05,826 INFO L210 NwaCegarLoop]: Found error trace [2025-03-16 19:17:05,827 INFO L218 NwaCegarLoop]: trace histogram [210, 210, 210, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-16 19:17:05,827 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-16 19:17:05,832 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-16 19:17:05,833 INFO L85 PathProgramCache]: Analyzing trace with hash -1167875685, now seen corresponding path program 1 times [2025-03-16 19:17:05,838 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-16 19:17:05,839 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [926690927] [2025-03-16 19:17:05,839 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 19:17:05,839 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-16 19:17:07,502 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1372 statements into 1 equivalence classes. [2025-03-16 19:17:07,694 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1372 of 1372 statements. [2025-03-16 19:17:07,694 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 19:17:07,695 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-16 19:17:08,596 INFO L134 CoverageAnalysis]: Checked inductivity of 87780 backedges. 0 proven. 418 refuted. 0 times theorem prover too weak. 87362 trivial. 0 not checked. [2025-03-16 19:17:08,597 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-16 19:17:08,597 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [926690927] [2025-03-16 19:17:08,600 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [926690927] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-16 19:17:08,600 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [104656887] [2025-03-16 19:17:08,601 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 19:17:08,601 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-16 19:17:08,601 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-16 19:17:08,603 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) [2025-03-16 19:17:08,604 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-03-16 19:17:10,918 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1372 statements into 1 equivalence classes. [2025-03-16 19:17:11,472 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1372 of 1372 statements. [2025-03-16 19:17:11,472 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 19:17:11,473 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-16 19:17:11,502 INFO L256 TraceCheckSpWp]: Trace formula consists of 5791 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-03-16 19:17:11,533 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-16 19:17:11,604 INFO L134 CoverageAnalysis]: Checked inductivity of 87780 backedges. 418 proven. 0 refuted. 0 times theorem prover too weak. 87362 trivial. 0 not checked. [2025-03-16 19:17:11,605 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-16 19:17:11,605 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [104656887] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-16 19:17:11,605 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-16 19:17:11,606 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2025-03-16 19:17:11,607 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1756585665] [2025-03-16 19:17:11,608 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-16 19:17:11,612 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-03-16 19:17:11,613 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-16 19:17:11,634 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-03-16 19:17:11,634 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-16 19:17:11,642 INFO L87 Difference]: Start difference. First operand has 3428 states, 1896 states have (on average 1.1777426160337552) internal successors, (2233), 2026 states have internal predecessors, (2233), 1506 states have call successors, (1506), 24 states have call predecessors, (1506), 24 states have return successors, (1506), 1406 states have call predecessors, (1506), 1506 states have call successors, (1506) Second operand has 2 states, 2 states have (on average 161.0) internal successors, (322), 2 states have internal predecessors, (322), 2 states have call successors, (213), 2 states have call predecessors, (213), 1 states have return successors, (212), 1 states have call predecessors, (212), 2 states have call successors, (212) [2025-03-16 19:17:11,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-16 19:17:11,931 INFO L93 Difference]: Finished difference Result 6854 states and 11965 transitions. [2025-03-16 19:17:11,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-16 19:17:11,933 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 161.0) internal successors, (322), 2 states have internal predecessors, (322), 2 states have call successors, (213), 2 states have call predecessors, (213), 1 states have return successors, (212), 1 states have call predecessors, (212), 2 states have call successors, (212) Word has length 1372 [2025-03-16 19:17:11,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-16 19:17:11,976 INFO L225 Difference]: With dead ends: 6854 [2025-03-16 19:17:11,976 INFO L226 Difference]: Without dead ends: 3425 [2025-03-16 19:17:12,004 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1373 GetRequests, 1373 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-16 19:17:12,005 INFO L435 NwaCegarLoop]: 5243 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, 5243 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 [2025-03-16 19:17:12,006 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 5243 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-16 19:17:12,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3425 states. [2025-03-16 19:17:12,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3425 to 3425. [2025-03-16 19:17:12,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3425 states, 1894 states have (on average 1.1768743400211192) internal successors, (2229), 2024 states have internal predecessors, (2229), 1506 states have call successors, (1506), 24 states have call predecessors, (1506), 24 states have return successors, (1505), 1405 states have call predecessors, (1505), 1505 states have call successors, (1505) [2025-03-16 19:17:12,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3425 states to 3425 states and 5240 transitions. [2025-03-16 19:17:12,955 INFO L78 Accepts]: Start accepts. Automaton has 3425 states and 5240 transitions. Word has length 1372 [2025-03-16 19:17:12,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-16 19:17:12,960 INFO L471 AbstractCegarLoop]: Abstraction has 3425 states and 5240 transitions. [2025-03-16 19:17:12,962 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 161.0) internal successors, (322), 2 states have internal predecessors, (322), 2 states have call successors, (213), 2 states have call predecessors, (213), 1 states have return successors, (212), 1 states have call predecessors, (212), 2 states have call successors, (212) [2025-03-16 19:17:12,962 INFO L276 IsEmpty]: Start isEmpty. Operand 3425 states and 5240 transitions. [2025-03-16 19:17:13,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1373 [2025-03-16 19:17:13,012 INFO L210 NwaCegarLoop]: Found error trace [2025-03-16 19:17:13,013 INFO L218 NwaCegarLoop]: trace histogram [210, 210, 210, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-16 19:17:13,033 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2025-03-16 19:17:13,214 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 [2025-03-16 19:17:13,214 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-16 19:17:13,216 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-16 19:17:13,216 INFO L85 PathProgramCache]: Analyzing trace with hash 1890257471, now seen corresponding path program 1 times [2025-03-16 19:17:13,216 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-16 19:17:13,216 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [130991429] [2025-03-16 19:17:13,216 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 19:17:13,217 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-16 19:17:14,621 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1372 statements into 1 equivalence classes. [2025-03-16 19:17:14,911 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1372 of 1372 statements. [2025-03-16 19:17:14,912 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 19:17:14,912 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-16 19:17:16,624 INFO L134 CoverageAnalysis]: Checked inductivity of 87780 backedges. 624 proven. 3 refuted. 0 times theorem prover too weak. 87153 trivial. 0 not checked. [2025-03-16 19:17:16,627 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-16 19:17:16,628 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [130991429] [2025-03-16 19:17:16,628 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [130991429] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-16 19:17:16,628 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1332807699] [2025-03-16 19:17:16,628 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 19:17:16,628 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-16 19:17:16,628 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-16 19:17:16,630 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-16 19:17:16,632 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-03-16 19:17:18,625 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1372 statements into 1 equivalence classes. [2025-03-16 19:17:19,129 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1372 of 1372 statements. [2025-03-16 19:17:19,129 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 19:17:19,130 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-16 19:17:19,153 INFO L256 TraceCheckSpWp]: Trace formula consists of 5791 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-16 19:17:19,178 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-16 19:17:19,239 INFO L134 CoverageAnalysis]: Checked inductivity of 87780 backedges. 1460 proven. 0 refuted. 0 times theorem prover too weak. 86320 trivial. 0 not checked. [2025-03-16 19:17:19,239 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-16 19:17:19,239 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1332807699] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-16 19:17:19,239 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-16 19:17:19,239 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 4 [2025-03-16 19:17:19,240 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2062565122] [2025-03-16 19:17:19,240 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-16 19:17:19,242 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-16 19:17:19,243 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-16 19:17:19,244 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-16 19:17:19,244 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-16 19:17:19,244 INFO L87 Difference]: Start difference. First operand 3425 states and 5240 transitions. Second operand has 4 states, 4 states have (on average 81.5) internal successors, (326), 4 states have internal predecessors, (326), 2 states have call successors, (213), 2 states have call predecessors, (213), 3 states have return successors, (212), 2 states have call predecessors, (212), 2 states have call successors, (212) [2025-03-16 19:17:27,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-16 19:17:27,625 INFO L93 Difference]: Finished difference Result 6142 states and 9425 transitions. [2025-03-16 19:17:27,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-16 19:17:27,626 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 81.5) internal successors, (326), 4 states have internal predecessors, (326), 2 states have call successors, (213), 2 states have call predecessors, (213), 3 states have return successors, (212), 2 states have call predecessors, (212), 2 states have call successors, (212) Word has length 1372 [2025-03-16 19:17:27,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-16 19:17:27,657 INFO L225 Difference]: With dead ends: 6142 [2025-03-16 19:17:27,658 INFO L226 Difference]: Without dead ends: 3423 [2025-03-16 19:17:27,673 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1376 GetRequests, 1373 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-16 19:17:27,674 INFO L435 NwaCegarLoop]: 3870 mSDtfsCounter, 1 mSDsluCounter, 5003 mSDsCounter, 0 mSdLazyCounter, 6832 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 8873 SdHoareTripleChecker+Invalid, 6836 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 6832 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.0s IncrementalHoareTripleChecker+Time [2025-03-16 19:17:27,674 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 8873 Invalid, 6836 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4 Valid, 6832 Invalid, 0 Unknown, 0 Unchecked, 8.0s Time] [2025-03-16 19:17:27,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3423 states. [2025-03-16 19:17:28,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3423 to 3421. [2025-03-16 19:17:28,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3421 states, 1892 states have (on average 1.1760042283298098) internal successors, (2225), 2022 states have internal predecessors, (2225), 1504 states have call successors, (1504), 24 states have call predecessors, (1504), 24 states have return successors, (1503), 1403 states have call predecessors, (1503), 1503 states have call successors, (1503) [2025-03-16 19:17:28,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3421 states to 3421 states and 5232 transitions. [2025-03-16 19:17:28,480 INFO L78 Accepts]: Start accepts. Automaton has 3421 states and 5232 transitions. Word has length 1372 [2025-03-16 19:17:28,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-16 19:17:28,485 INFO L471 AbstractCegarLoop]: Abstraction has 3421 states and 5232 transitions. [2025-03-16 19:17:28,486 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 81.5) internal successors, (326), 4 states have internal predecessors, (326), 2 states have call successors, (213), 2 states have call predecessors, (213), 3 states have return successors, (212), 2 states have call predecessors, (212), 2 states have call successors, (212) [2025-03-16 19:17:28,486 INFO L276 IsEmpty]: Start isEmpty. Operand 3421 states and 5232 transitions. [2025-03-16 19:17:28,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1408 [2025-03-16 19:17:28,500 INFO L210 NwaCegarLoop]: Found error trace [2025-03-16 19:17:28,501 INFO L218 NwaCegarLoop]: trace histogram [209, 209, 209, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-16 19:17:28,521 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-03-16 19:17:28,702 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2025-03-16 19:17:28,702 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-16 19:17:28,703 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-16 19:17:28,703 INFO L85 PathProgramCache]: Analyzing trace with hash -1200568550, now seen corresponding path program 1 times [2025-03-16 19:17:28,703 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-16 19:17:28,703 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [960804935] [2025-03-16 19:17:28,703 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 19:17:28,704 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-16 19:17:30,180 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1407 statements into 1 equivalence classes. [2025-03-16 19:17:30,338 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1407 of 1407 statements. [2025-03-16 19:17:30,338 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 19:17:30,338 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-16 19:17:30,895 INFO L134 CoverageAnalysis]: Checked inductivity of 86951 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 86951 trivial. 0 not checked. [2025-03-16 19:17:30,896 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-16 19:17:30,896 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [960804935] [2025-03-16 19:17:30,896 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [960804935] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-16 19:17:30,896 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-16 19:17:30,896 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-16 19:17:30,896 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [575548286] [2025-03-16 19:17:30,896 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-16 19:17:30,898 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-16 19:17:30,898 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-16 19:17:30,899 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-16 19:17:30,899 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-16 19:17:30,900 INFO L87 Difference]: Start difference. First operand 3421 states and 5232 transitions. Second operand has 3 states, 3 states have (on average 116.0) internal successors, (348), 3 states have internal predecessors, (348), 2 states have call successors, (215), 2 states have call predecessors, (215), 2 states have return successors, (214), 2 states have call predecessors, (214), 2 states have call successors, (214) [2025-03-16 19:17:30,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-16 19:17:30,999 INFO L93 Difference]: Finished difference Result 6134 states and 9407 transitions. [2025-03-16 19:17:31,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-16 19:17:31,001 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 116.0) internal successors, (348), 3 states have internal predecessors, (348), 2 states have call successors, (215), 2 states have call predecessors, (215), 2 states have return successors, (214), 2 states have call predecessors, (214), 2 states have call successors, (214) Word has length 1407 [2025-03-16 19:17:31,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-16 19:17:31,031 INFO L225 Difference]: With dead ends: 6134 [2025-03-16 19:17:31,031 INFO L226 Difference]: Without dead ends: 3421 [2025-03-16 19:17:31,046 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-16 19:17:31,047 INFO L435 NwaCegarLoop]: 5230 mSDtfsCounter, 0 mSDsluCounter, 5220 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 10450 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-16 19:17:31,048 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 10450 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-16 19:17:31,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3421 states. [2025-03-16 19:17:31,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3421 to 3421. [2025-03-16 19:17:31,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3421 states, 1892 states have (on average 1.175475687103594) internal successors, (2224), 2022 states have internal predecessors, (2224), 1504 states have call successors, (1504), 24 states have call predecessors, (1504), 24 states have return successors, (1503), 1403 states have call predecessors, (1503), 1503 states have call successors, (1503) [2025-03-16 19:17:31,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3421 states to 3421 states and 5231 transitions. [2025-03-16 19:17:31,749 INFO L78 Accepts]: Start accepts. Automaton has 3421 states and 5231 transitions. Word has length 1407 [2025-03-16 19:17:31,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-16 19:17:31,751 INFO L471 AbstractCegarLoop]: Abstraction has 3421 states and 5231 transitions. [2025-03-16 19:17:31,752 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 116.0) internal successors, (348), 3 states have internal predecessors, (348), 2 states have call successors, (215), 2 states have call predecessors, (215), 2 states have return successors, (214), 2 states have call predecessors, (214), 2 states have call successors, (214) [2025-03-16 19:17:31,752 INFO L276 IsEmpty]: Start isEmpty. Operand 3421 states and 5231 transitions. [2025-03-16 19:17:31,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1416 [2025-03-16 19:17:31,766 INFO L210 NwaCegarLoop]: Found error trace [2025-03-16 19:17:31,766 INFO L218 NwaCegarLoop]: trace histogram [209, 209, 209, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-16 19:17:31,766 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-16 19:17:31,766 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-16 19:17:31,767 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-16 19:17:31,767 INFO L85 PathProgramCache]: Analyzing trace with hash 388813465, now seen corresponding path program 1 times [2025-03-16 19:17:31,767 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-16 19:17:31,767 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1981905726] [2025-03-16 19:17:31,768 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 19:17:31,768 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-16 19:17:33,341 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1415 statements into 1 equivalence classes. [2025-03-16 19:17:33,561 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1415 of 1415 statements. [2025-03-16 19:17:33,561 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 19:17:33,561 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-16 19:17:35,811 INFO L134 CoverageAnalysis]: Checked inductivity of 86954 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 86954 trivial. 0 not checked. [2025-03-16 19:17:35,811 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-16 19:17:35,812 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1981905726] [2025-03-16 19:17:35,812 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1981905726] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-16 19:17:35,812 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-16 19:17:35,812 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-16 19:17:35,812 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [756511964] [2025-03-16 19:17:35,812 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-16 19:17:35,815 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-16 19:17:35,816 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-16 19:17:35,816 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-16 19:17:35,816 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-16 19:17:35,817 INFO L87 Difference]: Start difference. First operand 3421 states and 5231 transitions. Second operand has 5 states, 4 states have (on average 87.5) internal successors, (350), 5 states have internal predecessors, (350), 4 states have call successors, (217), 2 states have call predecessors, (217), 2 states have return successors, (216), 3 states have call predecessors, (216), 4 states have call successors, (216) [2025-03-16 19:17:41,365 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-03-16 19:17:45,388 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-03-16 19:17:50,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-16 19:17:50,920 INFO L93 Difference]: Finished difference Result 6439 states and 9850 transitions. [2025-03-16 19:17:50,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-16 19:17:50,920 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 87.5) internal successors, (350), 5 states have internal predecessors, (350), 4 states have call successors, (217), 2 states have call predecessors, (217), 2 states have return successors, (216), 3 states have call predecessors, (216), 4 states have call successors, (216) Word has length 1415 [2025-03-16 19:17:50,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-16 19:17:50,954 INFO L225 Difference]: With dead ends: 6439 [2025-03-16 19:17:50,955 INFO L226 Difference]: Without dead ends: 3726 [2025-03-16 19:17:50,973 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2025-03-16 19:17:50,974 INFO L435 NwaCegarLoop]: 5604 mSDtfsCounter, 5643 mSDsluCounter, 3501 mSDsCounter, 0 mSdLazyCounter, 4876 mSolverCounterSat, 28 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5643 SdHoareTripleChecker+Valid, 9105 SdHoareTripleChecker+Invalid, 4906 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 4876 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.7s IncrementalHoareTripleChecker+Time [2025-03-16 19:17:50,975 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5643 Valid, 9105 Invalid, 4906 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [28 Valid, 4876 Invalid, 2 Unknown, 0 Unchecked, 14.7s Time] [2025-03-16 19:17:50,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3726 states. [2025-03-16 19:17:51,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3726 to 3726. [2025-03-16 19:17:51,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3726 states, 2115 states have (on average 1.1929078014184398) internal successors, (2523), 2245 states have internal predecessors, (2523), 1576 states have call successors, (1576), 34 states have call predecessors, (1576), 34 states have return successors, (1575), 1475 states have call predecessors, (1575), 1575 states have call successors, (1575) [2025-03-16 19:17:51,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3726 states to 3726 states and 5674 transitions. [2025-03-16 19:17:51,649 INFO L78 Accepts]: Start accepts. Automaton has 3726 states and 5674 transitions. Word has length 1415 [2025-03-16 19:17:51,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-16 19:17:51,652 INFO L471 AbstractCegarLoop]: Abstraction has 3726 states and 5674 transitions. [2025-03-16 19:17:51,652 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 87.5) internal successors, (350), 5 states have internal predecessors, (350), 4 states have call successors, (217), 2 states have call predecessors, (217), 2 states have return successors, (216), 3 states have call predecessors, (216), 4 states have call successors, (216) [2025-03-16 19:17:51,652 INFO L276 IsEmpty]: Start isEmpty. Operand 3726 states and 5674 transitions. [2025-03-16 19:17:51,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1420 [2025-03-16 19:17:51,668 INFO L210 NwaCegarLoop]: Found error trace [2025-03-16 19:17:51,668 INFO L218 NwaCegarLoop]: trace histogram [209, 209, 209, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-16 19:17:51,669 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-16 19:17:51,669 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-16 19:17:51,669 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-16 19:17:51,670 INFO L85 PathProgramCache]: Analyzing trace with hash -1219814158, now seen corresponding path program 1 times [2025-03-16 19:17:51,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-16 19:17:51,670 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [441992491] [2025-03-16 19:17:51,670 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 19:17:51,670 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-16 19:17:52,947 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1419 statements into 1 equivalence classes. [2025-03-16 19:17:53,062 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1419 of 1419 statements. [2025-03-16 19:17:53,063 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 19:17:53,063 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-16 19:17:53,974 INFO L134 CoverageAnalysis]: Checked inductivity of 86954 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 86948 trivial. 0 not checked. [2025-03-16 19:17:53,974 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-16 19:17:53,975 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [441992491] [2025-03-16 19:17:53,975 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [441992491] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-16 19:17:53,975 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2147390039] [2025-03-16 19:17:53,975 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 19:17:53,975 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-16 19:17:53,978 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-16 19:17:53,981 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-16 19:17:53,984 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-03-16 19:17:56,111 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1419 statements into 1 equivalence classes. [2025-03-16 19:17:56,586 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1419 of 1419 statements. [2025-03-16 19:17:56,586 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 19:17:56,586 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-16 19:17:56,612 INFO L256 TraceCheckSpWp]: Trace formula consists of 5965 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-16 19:17:56,633 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-16 19:17:56,762 INFO L134 CoverageAnalysis]: Checked inductivity of 86954 backedges. 834 proven. 0 refuted. 0 times theorem prover too weak. 86120 trivial. 0 not checked. [2025-03-16 19:17:56,762 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-16 19:17:56,762 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2147390039] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-16 19:17:56,762 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-16 19:17:56,762 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 8 [2025-03-16 19:17:56,763 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1263439002] [2025-03-16 19:17:56,763 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-16 19:17:56,764 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-16 19:17:56,764 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-16 19:17:56,764 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-16 19:17:56,764 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2025-03-16 19:17:56,765 INFO L87 Difference]: Start difference. First operand 3726 states and 5674 transitions. Second operand has 5 states, 5 states have (on average 71.4) internal successors, (357), 5 states have internal predecessors, (357), 3 states have call successors, (218), 3 states have call predecessors, (218), 3 states have return successors, (217), 3 states have call predecessors, (217), 3 states have call successors, (217) [2025-03-16 19:18:03,014 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-03-16 19:18:07,059 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-03-16 19:18:11,111 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []