./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 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/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-?-e2fb8be-m [2025-03-08 06:09:07,295 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-08 06:09:07,352 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-03-08 06:09:07,359 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-08 06:09:07,359 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-08 06:09:07,385 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-08 06:09:07,386 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-08 06:09:07,386 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-08 06:09:07,386 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-08 06:09:07,386 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-08 06:09:07,386 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-08 06:09:07,386 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-08 06:09:07,386 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-08 06:09:07,387 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-08 06:09:07,387 INFO L153 SettingsManager]: * Use SBE=true [2025-03-08 06:09:07,387 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-08 06:09:07,387 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-08 06:09:07,387 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-08 06:09:07,387 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-08 06:09:07,387 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-08 06:09:07,387 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-08 06:09:07,387 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-08 06:09:07,387 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-08 06:09:07,388 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-08 06:09:07,388 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-08 06:09:07,388 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-08 06:09:07,388 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-08 06:09:07,388 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-08 06:09:07,388 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-08 06:09:07,388 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-08 06:09:07,388 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-08 06:09:07,388 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-08 06:09:07,388 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 06:09:07,388 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-08 06:09:07,389 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-08 06:09:07,389 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-08 06:09:07,389 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-08 06:09:07,389 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-08 06:09:07,389 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-08 06:09:07,389 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-08 06:09:07,389 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-08 06:09:07,389 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-08 06:09:07,389 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-08 06:09:07,389 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 [2025-03-08 06:09:07,631 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-08 06:09:07,640 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-08 06:09:07,642 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-08 06:09:07,643 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-08 06:09:07,643 INFO L274 PluginConnector]: CDTParser initialized [2025-03-08 06:09:07,644 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded/rekh_aso.2.M1-1.c [2025-03-08 06:09:08,872 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/277b3c8db/f8c865d11647449e85fca8c90ced07c3/FLAG12f1fd895 [2025-03-08 06:09:09,348 INFO L384 CDTParser]: Found 1 translation units. [2025-03-08 06:09:09,349 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/rekh_aso.2.M1-1.c [2025-03-08 06:09:09,379 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/277b3c8db/f8c865d11647449e85fca8c90ced07c3/FLAG12f1fd895 [2025-03-08 06:09:09,437 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/277b3c8db/f8c865d11647449e85fca8c90ced07c3 [2025-03-08 06:09:09,439 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-08 06:09:09,440 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-08 06:09:09,442 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-08 06:09:09,443 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-08 06:09:09,446 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-08 06:09:09,448 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 06:09:09" (1/1) ... [2025-03-08 06:09:09,448 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f46f020 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:09:09, skipping insertion in model container [2025-03-08 06:09:09,450 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 06:09:09" (1/1) ... [2025-03-08 06:09:09,501 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-08 06:09:09,624 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] [2025-03-08 06:09:09,960 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 06:09:09,997 INFO L200 MainTranslator]: Completed pre-run [2025-03-08 06:09:10,003 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"/tmp/aaaa/aso.ok2.i","-S") [39] [2025-03-08 06:09:10,007 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] [2025-03-08 06:09:10,239 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 06:09:10,267 INFO L204 MainTranslator]: Completed translation [2025-03-08 06:09:10,268 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:09:10 WrapperNode [2025-03-08 06:09:10,268 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-08 06:09:10,269 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-08 06:09:10,269 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-08 06:09:10,270 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-08 06:09:10,274 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:09:10" (1/1) ... [2025-03-08 06:09:10,350 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:09:10" (1/1) ... [2025-03-08 06:09:10,659 INFO L138 Inliner]: procedures = 70, calls = 5728, calls flagged for inlining = 26, calls inlined = 26, statements flattened = 12648 [2025-03-08 06:09:10,659 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-08 06:09:10,661 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-08 06:09:10,661 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-08 06:09:10,661 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-08 06:09:10,668 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:09:10" (1/1) ... [2025-03-08 06:09:10,669 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:09:10" (1/1) ... [2025-03-08 06:09:10,777 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:09:10" (1/1) ... [2025-03-08 06:09:10,911 INFO L175 MemorySlicer]: Split 4157 memory accesses to 27 slices as follows [4, 2, 2, 8, 2, 379, 455, 113, 113, 180, 203, 8, 180, 203, 180, 203, 180, 203, 180, 203, 180, 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, 0, 2, 27, 27, 27, 27, 27, 27, 0, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 2]. The 553 writes are split as follows [0, 1, 1, 4, 0, 27, 27, 27, 27, 28, 26, 4, 28, 26, 28, 26, 28, 26, 28, 26, 28, 26, 28, 26, 28, 26, 3]. [2025-03-08 06:09:10,912 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:09:10" (1/1) ... [2025-03-08 06:09:10,912 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:09:10" (1/1) ... [2025-03-08 06:09:11,092 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:09:10" (1/1) ... [2025-03-08 06:09:11,118 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:09:10" (1/1) ... [2025-03-08 06:09:11,142 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:09:10" (1/1) ... [2025-03-08 06:09:11,168 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:09:10" (1/1) ... [2025-03-08 06:09:11,224 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-08 06:09:11,225 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-08 06:09:11,226 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-08 06:09:11,226 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-08 06:09:11,227 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:09:10" (1/1) ... [2025-03-08 06:09:11,231 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 06:09:11,241 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 06:09:11,254 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-03-08 06:09:11,257 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 06:09:11,274 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-08 06:09:11,275 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_trans [2025-03-08 06:09:11,275 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_trans [2025-03-08 06:09:11,275 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_cmd_forward [2025-03-08 06:09:11,275 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_cmd_forward [2025-03-08 06:09:11,275 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2025-03-08 06:09:11,275 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2025-03-08 06:09:11,275 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_nxtway_gs_mode [2025-03-08 06:09:11,276 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_nxtway_gs_mode [2025-03-08 06:09:11,276 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-03-08 06:09:11,276 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2025-03-08 06:09:11,276 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2025-03-08 06:09:11,276 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2025-03-08 06:09:11,276 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2025-03-08 06:09:11,276 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read___startrek_current_priority [2025-03-08 06:09:11,276 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read___startrek_current_priority [2025-03-08 06:09:11,276 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_obstacle_flag [2025-03-08 06:09:11,276 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_obstacle_flag [2025-03-08 06:09:11,277 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-03-08 06:09:11,277 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-03-08 06:09:11,277 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-03-08 06:09:11,277 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-03-08 06:09:11,277 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2025-03-08 06:09:11,277 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2025-03-08 06:09:11,277 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2025-03-08 06:09:11,278 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2025-03-08 06:09:11,278 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2025-03-08 06:09:11,278 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2025-03-08 06:09:11,278 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#10 [2025-03-08 06:09:11,278 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#11 [2025-03-08 06:09:11,278 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#12 [2025-03-08 06:09:11,278 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#13 [2025-03-08 06:09:11,278 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#14 [2025-03-08 06:09:11,278 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#15 [2025-03-08 06:09:11,278 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#16 [2025-03-08 06:09:11,278 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#17 [2025-03-08 06:09:11,278 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#18 [2025-03-08 06:09:11,278 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#19 [2025-03-08 06:09:11,278 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#20 [2025-03-08 06:09:11,278 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#21 [2025-03-08 06:09:11,278 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#22 [2025-03-08 06:09:11,278 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#23 [2025-03-08 06:09:11,278 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#24 [2025-03-08 06:09:11,278 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#25 [2025-03-08 06:09:11,278 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#26 [2025-03-08 06:09:11,278 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2025-03-08 06:09:11,278 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2025-03-08 06:09:11,279 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_gyro_sensor [2025-03-08 06:09:11,279 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_gyro_sensor [2025-03-08 06:09:11,279 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_cmd_turn [2025-03-08 06:09:11,279 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_cmd_turn [2025-03-08 06:09:11,279 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write___startrek_current_priority [2025-03-08 06:09:11,279 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write___startrek_current_priority [2025-03-08 06:09:11,279 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts1 [2025-03-08 06:09:11,279 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts1 [2025-03-08 06:09:11,279 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts2 [2025-03-08 06:09:11,279 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts2 [2025-03-08 06:09:11,279 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts3 [2025-03-08 06:09:11,279 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts3 [2025-03-08 06:09:11,279 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-03-08 06:09:11,279 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-03-08 06:09:11,279 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-03-08 06:09:11,279 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-03-08 06:09:11,279 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-03-08 06:09:11,279 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2025-03-08 06:09:11,279 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2025-03-08 06:09:11,279 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2025-03-08 06:09:11,279 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2025-03-08 06:09:11,279 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2025-03-08 06:09:11,279 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2025-03-08 06:09:11,279 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#10 [2025-03-08 06:09:11,279 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#11 [2025-03-08 06:09:11,279 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#12 [2025-03-08 06:09:11,279 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#13 [2025-03-08 06:09:11,279 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#14 [2025-03-08 06:09:11,279 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#15 [2025-03-08 06:09:11,279 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#16 [2025-03-08 06:09:11,279 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#17 [2025-03-08 06:09:11,280 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#18 [2025-03-08 06:09:11,280 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#19 [2025-03-08 06:09:11,280 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#20 [2025-03-08 06:09:11,280 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#21 [2025-03-08 06:09:11,280 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#22 [2025-03-08 06:09:11,280 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#23 [2025-03-08 06:09:11,280 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#24 [2025-03-08 06:09:11,280 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#25 [2025-03-08 06:09:11,280 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#26 [2025-03-08 06:09:11,280 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2025-03-08 06:09:11,280 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2025-03-08 06:09:11,280 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_speed [2025-03-08 06:09:11,280 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_speed [2025-03-08 06:09:11,280 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_cmd_forward [2025-03-08 06:09:11,280 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_cmd_forward [2025-03-08 06:09:11,280 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_obstacle_flag [2025-03-08 06:09:11,280 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_obstacle_flag [2025-03-08 06:09:11,280 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-03-08 06:09:11,280 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-03-08 06:09:11,280 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-08 06:09:11,280 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-03-08 06:09:11,280 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-03-08 06:09:11,283 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-03-08 06:09:11,284 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-03-08 06:09:11,284 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2025-03-08 06:09:11,284 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2025-03-08 06:09:11,284 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2025-03-08 06:09:11,284 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2025-03-08 06:09:11,284 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2025-03-08 06:09:11,284 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2025-03-08 06:09:11,284 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2025-03-08 06:09:11,284 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2025-03-08 06:09:11,284 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2025-03-08 06:09:11,284 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2025-03-08 06:09:11,284 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2025-03-08 06:09:11,284 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#16 [2025-03-08 06:09:11,284 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#17 [2025-03-08 06:09:11,284 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#18 [2025-03-08 06:09:11,284 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#19 [2025-03-08 06:09:11,284 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#20 [2025-03-08 06:09:11,284 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#21 [2025-03-08 06:09:11,284 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#22 [2025-03-08 06:09:11,284 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#23 [2025-03-08 06:09:11,284 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#24 [2025-03-08 06:09:11,284 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#25 [2025-03-08 06:09:11,284 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#26 [2025-03-08 06:09:11,284 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-08 06:09:11,284 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-08 06:09:11,284 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_systick_ms [2025-03-08 06:09:11,284 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_systick_ms [2025-03-08 06:09:11,284 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2025-03-08 06:09:11,284 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2025-03-08 06:09:11,284 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtway_gs_mode [2025-03-08 06:09:11,285 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtway_gs_mode [2025-03-08 06:09:11,285 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_cmd_turn [2025-03-08 06:09:11,285 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_cmd_turn [2025-03-08 06:09:11,900 INFO L256 CfgBuilder]: Building ICFG [2025-03-08 06:09:11,902 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-08 06:09:12,297 INFO L1307 $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; [2025-03-08 06:09:12,298 INFO L1307 $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; [2025-03-08 06:09:21,394 INFO L? ?]: Removed 504 outVars from TransFormulas that were not future-live. [2025-03-08 06:09:21,394 INFO L307 CfgBuilder]: Performing block encoding [2025-03-08 06:09:21,467 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-08 06:09:21,468 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-08 06:09:21,468 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 06:09:21 BoogieIcfgContainer [2025-03-08 06:09:21,468 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-08 06:09:21,470 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-08 06:09:21,470 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-08 06:09:21,475 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-08 06:09:21,476 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.03 06:09:09" (1/3) ... [2025-03-08 06:09:21,476 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4af4f145 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 06:09:21, skipping insertion in model container [2025-03-08 06:09:21,477 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:09:10" (2/3) ... [2025-03-08 06:09:21,477 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4af4f145 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 06:09:21, skipping insertion in model container [2025-03-08 06:09:21,477 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 06:09:21" (3/3) ... [2025-03-08 06:09:21,478 INFO L128 eAbstractionObserver]: Analyzing ICFG rekh_aso.2.M1-1.c [2025-03-08 06:09:21,491 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-08 06:09:21,494 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG rekh_aso.2.M1-1.c that has 25 procedures, 3448 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2025-03-08 06:09:21,616 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-08 06:09:21,627 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;@7861c8b8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-08 06:09:21,627 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-03-08 06:09:21,642 INFO L276 IsEmpty]: Start isEmpty. Operand has 3448 states, 1916 states have (on average 1.1758872651356993) internal successors, (2253), 2046 states have internal predecessors, (2253), 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) [2025-03-08 06:09:21,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1377 [2025-03-08 06:09:21,723 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 06:09:21,724 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, 1, 1, 1, 1] [2025-03-08 06:09:21,725 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 06:09:21,729 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 06:09:21,729 INFO L85 PathProgramCache]: Analyzing trace with hash -1812676025, now seen corresponding path program 1 times [2025-03-08 06:09:21,736 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 06:09:21,737 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [617358960] [2025-03-08 06:09:21,739 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 06:09:21,739 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 06:09:23,634 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1376 statements into 1 equivalence classes. [2025-03-08 06:09:23,826 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1376 of 1376 statements. [2025-03-08 06:09:23,827 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 06:09:23,827 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 06:09:24,699 INFO L134 CoverageAnalysis]: Checked inductivity of 87780 backedges. 0 proven. 418 refuted. 0 times theorem prover too weak. 87362 trivial. 0 not checked. [2025-03-08 06:09:24,701 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 06:09:24,701 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [617358960] [2025-03-08 06:09:24,702 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [617358960] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 06:09:24,702 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1803860564] [2025-03-08 06:09:24,702 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 06:09:24,703 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 06:09:24,703 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 06:09:24,705 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 06:09:24,707 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 06:09:27,257 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1376 statements into 1 equivalence classes. [2025-03-08 06:09:27,864 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1376 of 1376 statements. [2025-03-08 06:09:27,864 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 06:09:27,864 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 06:09:27,896 INFO L256 TraceCheckSpWp]: Trace formula consists of 5794 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-03-08 06:09:27,932 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 06:09:28,027 INFO L134 CoverageAnalysis]: Checked inductivity of 87780 backedges. 418 proven. 0 refuted. 0 times theorem prover too weak. 87362 trivial. 0 not checked. [2025-03-08 06:09:28,027 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-08 06:09:28,028 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1803860564] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 06:09:28,028 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-08 06:09:28,028 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2025-03-08 06:09:28,030 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [454056609] [2025-03-08 06:09:28,030 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 06:09:28,036 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-03-08 06:09:28,036 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 06:09:28,053 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-03-08 06:09:28,054 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-08 06:09:28,062 INFO L87 Difference]: Start difference. First operand has 3448 states, 1916 states have (on average 1.1758872651356993) internal successors, (2253), 2046 states have internal predecessors, (2253), 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 163.0) internal successors, (326), 2 states have internal predecessors, (326), 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) [2025-03-08 06:09:28,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 06:09:28,331 INFO L93 Difference]: Finished difference Result 6891 states and 12002 transitions. [2025-03-08 06:09:28,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-08 06:09:28,334 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 163.0) internal successors, (326), 2 states have internal predecessors, (326), 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 1376 [2025-03-08 06:09:28,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 06:09:28,390 INFO L225 Difference]: With dead ends: 6891 [2025-03-08 06:09:28,391 INFO L226 Difference]: Without dead ends: 3443 [2025-03-08 06:09:28,428 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1377 GetRequests, 1377 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 06:09:28,430 INFO L435 NwaCegarLoop]: 5263 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, 5263 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 06:09:28,430 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 5263 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-08 06:09:28,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3443 states. [2025-03-08 06:09:29,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3443 to 3443. [2025-03-08 06:09:29,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3443 states, 1912 states have (on average 1.1752092050209204) internal successors, (2247), 2042 states have internal predecessors, (2247), 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) [2025-03-08 06:09:29,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3443 states to 3443 states and 5258 transitions. [2025-03-08 06:09:29,290 INFO L78 Accepts]: Start accepts. Automaton has 3443 states and 5258 transitions. Word has length 1376 [2025-03-08 06:09:29,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 06:09:29,291 INFO L471 AbstractCegarLoop]: Abstraction has 3443 states and 5258 transitions. [2025-03-08 06:09:29,292 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 163.0) internal successors, (326), 2 states have internal predecessors, (326), 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) [2025-03-08 06:09:29,292 INFO L276 IsEmpty]: Start isEmpty. Operand 3443 states and 5258 transitions. [2025-03-08 06:09:29,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1377 [2025-03-08 06:09:29,383 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 06:09:29,384 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, 1, 1, 1, 1] [2025-03-08 06:09:29,432 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2025-03-08 06:09:29,585 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 06:09:29,586 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 06:09:29,588 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 06:09:29,588 INFO L85 PathProgramCache]: Analyzing trace with hash 1172064227, now seen corresponding path program 1 times [2025-03-08 06:09:29,589 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 06:09:29,589 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [797686562] [2025-03-08 06:09:29,589 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 06:09:29,590 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 06:09:31,260 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1376 statements into 1 equivalence classes. [2025-03-08 06:09:31,690 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1376 of 1376 statements. [2025-03-08 06:09:31,691 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 06:09:31,691 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 06:09:33,488 INFO L134 CoverageAnalysis]: Checked inductivity of 87780 backedges. 624 proven. 3 refuted. 0 times theorem prover too weak. 87153 trivial. 0 not checked. [2025-03-08 06:09:33,489 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 06:09:33,489 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [797686562] [2025-03-08 06:09:33,489 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [797686562] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 06:09:33,489 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [393541894] [2025-03-08 06:09:33,489 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 06:09:33,490 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 06:09:33,490 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 06:09:33,492 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) [2025-03-08 06:09:33,494 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-03-08 06:09:35,759 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1376 statements into 1 equivalence classes. [2025-03-08 06:09:36,312 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1376 of 1376 statements. [2025-03-08 06:09:36,313 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 06:09:36,313 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 06:09:36,344 INFO L256 TraceCheckSpWp]: Trace formula consists of 5794 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-08 06:09:36,364 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 06:09:36,435 INFO L134 CoverageAnalysis]: Checked inductivity of 87780 backedges. 1460 proven. 0 refuted. 0 times theorem prover too weak. 86320 trivial. 0 not checked. [2025-03-08 06:09:36,436 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-08 06:09:36,436 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [393541894] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 06:09:36,436 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-08 06:09:36,436 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 4 [2025-03-08 06:09:36,436 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [781400163] [2025-03-08 06:09:36,436 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 06:09:36,439 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-08 06:09:36,439 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 06:09:36,441 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-08 06:09:36,441 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-08 06:09:36,441 INFO L87 Difference]: Start difference. First operand 3443 states and 5258 transitions. Second operand has 4 states, 4 states have (on average 82.5) internal successors, (330), 4 states have internal predecessors, (330), 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) [2025-03-08 06:09:43,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 06:09:43,523 INFO L93 Difference]: Finished difference Result 6174 states and 9457 transitions. [2025-03-08 06:09:43,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-08 06:09:43,524 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 82.5) internal successors, (330), 4 states have internal predecessors, (330), 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 1376 [2025-03-08 06:09:43,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 06:09:43,556 INFO L225 Difference]: With dead ends: 6174 [2025-03-08 06:09:43,556 INFO L226 Difference]: Without dead ends: 3441 [2025-03-08 06:09:43,570 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1380 GetRequests, 1377 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-08 06:09:43,571 INFO L435 NwaCegarLoop]: 3888 mSDtfsCounter, 1 mSDsluCounter, 5039 mSDsCounter, 0 mSdLazyCounter, 6832 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 8927 SdHoareTripleChecker+Invalid, 6836 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 6832 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.7s IncrementalHoareTripleChecker+Time [2025-03-08 06:09:43,571 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 8927 Invalid, 6836 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4 Valid, 6832 Invalid, 0 Unknown, 0 Unchecked, 6.7s Time] [2025-03-08 06:09:43,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3441 states. [2025-03-08 06:09:44,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3441 to 3439. [2025-03-08 06:09:44,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3439 states, 1910 states have (on average 1.1743455497382198) internal successors, (2243), 2040 states have internal predecessors, (2243), 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) [2025-03-08 06:09:44,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3439 states to 3439 states and 5250 transitions. [2025-03-08 06:09:44,261 INFO L78 Accepts]: Start accepts. Automaton has 3439 states and 5250 transitions. Word has length 1376 [2025-03-08 06:09:44,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 06:09:44,266 INFO L471 AbstractCegarLoop]: Abstraction has 3439 states and 5250 transitions. [2025-03-08 06:09:44,267 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 82.5) internal successors, (330), 4 states have internal predecessors, (330), 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) [2025-03-08 06:09:44,267 INFO L276 IsEmpty]: Start isEmpty. Operand 3439 states and 5250 transitions. [2025-03-08 06:09:44,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1414 [2025-03-08 06:09:44,282 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 06:09:44,282 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, 1, 1, 1, 1, 1, 1] [2025-03-08 06:09:44,304 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-03-08 06:09:44,483 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 [2025-03-08 06:09:44,483 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 06:09:44,484 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 06:09:44,484 INFO L85 PathProgramCache]: Analyzing trace with hash -1134864421, now seen corresponding path program 1 times [2025-03-08 06:09:44,485 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 06:09:44,485 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1102318301] [2025-03-08 06:09:44,485 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 06:09:44,485 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 06:09:45,831 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1413 statements into 1 equivalence classes. [2025-03-08 06:09:46,198 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1413 of 1413 statements. [2025-03-08 06:09:46,199 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 06:09:46,199 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 06:09:46,785 INFO L134 CoverageAnalysis]: Checked inductivity of 86951 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 86951 trivial. 0 not checked. [2025-03-08 06:09:46,786 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 06:09:46,786 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1102318301] [2025-03-08 06:09:46,786 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1102318301] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 06:09:46,786 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 06:09:46,786 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-08 06:09:46,786 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [968879318] [2025-03-08 06:09:46,786 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 06:09:46,788 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-08 06:09:46,788 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 06:09:46,789 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-08 06:09:46,790 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-08 06:09:46,794 INFO L87 Difference]: Start difference. First operand 3439 states and 5250 transitions. Second operand has 3 states, 3 states have (on average 118.0) internal successors, (354), 3 states have internal predecessors, (354), 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) [2025-03-08 06:09:46,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 06:09:46,892 INFO L93 Difference]: Finished difference Result 6166 states and 9439 transitions. [2025-03-08 06:09:46,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-08 06:09:46,897 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 118.0) internal successors, (354), 3 states have internal predecessors, (354), 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 1413 [2025-03-08 06:09:46,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 06:09:47,022 INFO L225 Difference]: With dead ends: 6166 [2025-03-08 06:09:47,025 INFO L226 Difference]: Without dead ends: 3439 [2025-03-08 06:09:47,047 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 [2025-03-08 06:09:47,049 INFO L435 NwaCegarLoop]: 5248 mSDtfsCounter, 0 mSDsluCounter, 5238 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 10486 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 [2025-03-08 06:09:47,049 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 10486 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-08 06:09:47,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3439 states. [2025-03-08 06:09:47,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3439 to 3439. [2025-03-08 06:09:47,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3439 states, 1910 states have (on average 1.1738219895287958) internal successors, (2242), 2040 states have internal predecessors, (2242), 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) [2025-03-08 06:09:47,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3439 states to 3439 states and 5249 transitions. [2025-03-08 06:09:47,868 INFO L78 Accepts]: Start accepts. Automaton has 3439 states and 5249 transitions. Word has length 1413 [2025-03-08 06:09:47,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 06:09:47,870 INFO L471 AbstractCegarLoop]: Abstraction has 3439 states and 5249 transitions. [2025-03-08 06:09:47,871 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 118.0) internal successors, (354), 3 states have internal predecessors, (354), 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) [2025-03-08 06:09:47,871 INFO L276 IsEmpty]: Start isEmpty. Operand 3439 states and 5249 transitions. [2025-03-08 06:09:47,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1422 [2025-03-08 06:09:47,885 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 06:09:47,886 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, 1, 1] [2025-03-08 06:09:47,886 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-08 06:09:47,886 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 06:09:47,887 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 06:09:47,888 INFO L85 PathProgramCache]: Analyzing trace with hash -1118592678, now seen corresponding path program 1 times [2025-03-08 06:09:47,888 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 06:09:47,888 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [131719126] [2025-03-08 06:09:47,888 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 06:09:47,888 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 06:09:49,436 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1421 statements into 1 equivalence classes. [2025-03-08 06:09:49,688 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1421 of 1421 statements. [2025-03-08 06:09:49,688 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 06:09:49,688 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 06:09:52,344 INFO L134 CoverageAnalysis]: Checked inductivity of 86954 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 86954 trivial. 0 not checked. [2025-03-08 06:09:52,344 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 06:09:52,344 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [131719126] [2025-03-08 06:09:52,344 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [131719126] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 06:09:52,345 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 06:09:52,345 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-08 06:09:52,345 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1755865688] [2025-03-08 06:09:52,345 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 06:09:52,346 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-08 06:09:52,346 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 06:09:52,347 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-08 06:09:52,347 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-08 06:09:52,347 INFO L87 Difference]: Start difference. First operand 3439 states and 5249 transitions. Second operand has 5 states, 4 states have (on average 89.0) internal successors, (356), 5 states have internal predecessors, (356), 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) [2025-03-08 06:09:58,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 06:09:58,262 INFO L93 Difference]: Finished difference Result 6471 states and 9882 transitions. [2025-03-08 06:09:58,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-08 06:09:58,263 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 89.0) internal successors, (356), 5 states have internal predecessors, (356), 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 1421 [2025-03-08 06:09:58,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 06:09:58,300 INFO L225 Difference]: With dead ends: 6471 [2025-03-08 06:09:58,300 INFO L226 Difference]: Without dead ends: 3744 [2025-03-08 06:09:58,317 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 [2025-03-08 06:09:58,318 INFO L435 NwaCegarLoop]: 5622 mSDtfsCounter, 5661 mSDsluCounter, 3525 mSDsCounter, 0 mSdLazyCounter, 4878 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5661 SdHoareTripleChecker+Valid, 9147 SdHoareTripleChecker+Invalid, 4906 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 4878 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2025-03-08 06:09:58,318 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5661 Valid, 9147 Invalid, 4906 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [28 Valid, 4878 Invalid, 0 Unknown, 0 Unchecked, 5.5s Time] [2025-03-08 06:09:58,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3744 states. [2025-03-08 06:09:59,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3744 to 3744. [2025-03-08 06:09:59,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3744 states, 2133 states have (on average 1.191279887482419) internal successors, (2541), 2263 states have internal predecessors, (2541), 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) [2025-03-08 06:09:59,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3744 states to 3744 states and 5692 transitions. [2025-03-08 06:09:59,200 INFO L78 Accepts]: Start accepts. Automaton has 3744 states and 5692 transitions. Word has length 1421 [2025-03-08 06:09:59,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 06:09:59,202 INFO L471 AbstractCegarLoop]: Abstraction has 3744 states and 5692 transitions. [2025-03-08 06:09:59,202 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 89.0) internal successors, (356), 5 states have internal predecessors, (356), 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) [2025-03-08 06:09:59,203 INFO L276 IsEmpty]: Start isEmpty. Operand 3744 states and 5692 transitions. [2025-03-08 06:09:59,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1426 [2025-03-08 06:09:59,231 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 06:09:59,232 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, 1, 1, 1, 1, 1, 1] [2025-03-08 06:09:59,232 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-08 06:09:59,232 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 06:09:59,233 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 06:09:59,233 INFO L85 PathProgramCache]: Analyzing trace with hash -188362943, now seen corresponding path program 1 times [2025-03-08 06:09:59,233 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 06:09:59,233 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [545608912] [2025-03-08 06:09:59,234 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 06:09:59,234 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 06:10:00,521 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1425 statements into 1 equivalence classes. [2025-03-08 06:10:00,662 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1425 of 1425 statements. [2025-03-08 06:10:00,662 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 06:10:00,663 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 06:10:01,888 INFO L134 CoverageAnalysis]: Checked inductivity of 86954 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 86948 trivial. 0 not checked. [2025-03-08 06:10:01,888 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 06:10:01,888 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [545608912] [2025-03-08 06:10:01,889 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [545608912] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 06:10:01,889 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [649144721] [2025-03-08 06:10:01,889 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 06:10:01,889 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 06:10:01,889 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 06:10:01,891 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) [2025-03-08 06:10:01,894 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-03-08 06:10:03,902 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1425 statements into 1 equivalence classes. [2025-03-08 06:10:04,385 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1425 of 1425 statements. [2025-03-08 06:10:04,385 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 06:10:04,385 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 06:10:04,415 INFO L256 TraceCheckSpWp]: Trace formula consists of 5971 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-08 06:10:04,436 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 06:10:04,553 INFO L134 CoverageAnalysis]: Checked inductivity of 86954 backedges. 834 proven. 0 refuted. 0 times theorem prover too weak. 86120 trivial. 0 not checked. [2025-03-08 06:10:04,553 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-08 06:10:04,554 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [649144721] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 06:10:04,554 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-08 06:10:04,554 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 8 [2025-03-08 06:10:04,554 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1751264306] [2025-03-08 06:10:04,554 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 06:10:04,555 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-08 06:10:04,555 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 06:10:04,556 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-08 06:10:04,556 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2025-03-08 06:10:04,556 INFO L87 Difference]: Start difference. First operand 3744 states and 5692 transitions. Second operand has 5 states, 5 states have (on average 72.6) internal successors, (363), 5 states have internal predecessors, (363), 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) [2025-03-08 06:10:12,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 06:10:12,418 INFO L93 Difference]: Finished difference Result 9259 states and 14107 transitions. [2025-03-08 06:10:12,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-08 06:10:12,419 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 72.6) internal successors, (363), 5 states have internal predecessors, (363), 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) Word has length 1425 [2025-03-08 06:10:12,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 06:10:12,464 INFO L225 Difference]: With dead ends: 9259 [2025-03-08 06:10:12,464 INFO L226 Difference]: Without dead ends: 6227 [2025-03-08 06:10:12,477 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1430 GetRequests, 1424 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2025-03-08 06:10:12,478 INFO L435 NwaCegarLoop]: 7169 mSDtfsCounter, 5154 mSDsluCounter, 9642 mSDsCounter, 0 mSdLazyCounter, 6273 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5154 SdHoareTripleChecker+Valid, 16811 SdHoareTripleChecker+Invalid, 6275 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 6273 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.4s IncrementalHoareTripleChecker+Time [2025-03-08 06:10:12,478 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5154 Valid, 16811 Invalid, 6275 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 6273 Invalid, 0 Unknown, 0 Unchecked, 7.4s Time] [2025-03-08 06:10:12,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6227 states. [2025-03-08 06:10:13,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6227 to 6145. [2025-03-08 06:10:13,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6145 states, 3509 states have (on average 1.1940723852949557) internal successors, (4190), 3718 states have internal predecessors, (4190), 2572 states have call successors, (2572), 59 states have call predecessors, (2572), 63 states have return successors, (2599), 2398 states have call predecessors, (2599), 2571 states have call successors, (2599) [2025-03-08 06:10:13,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6145 states to 6145 states and 9361 transitions. [2025-03-08 06:10:13,470 INFO L78 Accepts]: Start accepts. Automaton has 6145 states and 9361 transitions. Word has length 1425 [2025-03-08 06:10:13,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 06:10:13,472 INFO L471 AbstractCegarLoop]: Abstraction has 6145 states and 9361 transitions. [2025-03-08 06:10:13,473 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 72.6) internal successors, (363), 5 states have internal predecessors, (363), 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) [2025-03-08 06:10:13,473 INFO L276 IsEmpty]: Start isEmpty. Operand 6145 states and 9361 transitions. [2025-03-08 06:10:13,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1427 [2025-03-08 06:10:13,559 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 06:10:13,560 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, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 06:10:13,584 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-03-08 06:10:13,760 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 06:10:13,761 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 06:10:13,762 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 06:10:13,763 INFO L85 PathProgramCache]: Analyzing trace with hash 818191025, now seen corresponding path program 1 times [2025-03-08 06:10:13,763 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 06:10:13,763 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1788259330] [2025-03-08 06:10:13,763 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 06:10:13,764 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 06:10:15,127 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1426 statements into 1 equivalence classes. [2025-03-08 06:10:15,309 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1426 of 1426 statements. [2025-03-08 06:10:15,309 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 06:10:15,309 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 06:10:16,461 INFO L134 CoverageAnalysis]: Checked inductivity of 86954 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 86950 trivial. 0 not checked. [2025-03-08 06:10:16,461 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 06:10:16,462 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1788259330] [2025-03-08 06:10:16,462 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1788259330] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 06:10:16,462 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1091167788] [2025-03-08 06:10:16,462 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 06:10:16,462 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 06:10:16,462 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 06:10:16,464 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-08 06:10:16,466 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-03-08 06:10:18,474 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1426 statements into 1 equivalence classes. [2025-03-08 06:10:18,956 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1426 of 1426 statements. [2025-03-08 06:10:18,956 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 06:10:18,956 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 06:10:18,986 INFO L256 TraceCheckSpWp]: Trace formula consists of 5971 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-08 06:10:19,005 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 06:10:19,130 INFO L134 CoverageAnalysis]: Checked inductivity of 86954 backedges. 836 proven. 0 refuted. 0 times theorem prover too weak. 86118 trivial. 0 not checked. [2025-03-08 06:10:19,131 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-08 06:10:19,131 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1091167788] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 06:10:19,131 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-08 06:10:19,131 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 8 [2025-03-08 06:10:19,131 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1854402556] [2025-03-08 06:10:19,131 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 06:10:19,132 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-08 06:10:19,132 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 06:10:19,133 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-08 06:10:19,133 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2025-03-08 06:10:19,133 INFO L87 Difference]: Start difference. First operand 6145 states and 9361 transitions. Second operand has 5 states, 5 states have (on average 73.2) internal successors, (366), 5 states have internal predecessors, (366), 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)