./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/seq-mthreaded/rekh_aso.3.M4.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c00e63dc Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/seq-mthreaded/rekh_aso.3.M4.c -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 88c381f80ede07771f395015e897371ba8d778e07b9cc24c64e290568f2e97f7 --- Real Ultimate output --- This is Ultimate 0.3.0-?-c00e63d-m [2025-02-05 16:24:05,652 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-05 16:24:05,728 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-02-05 16:24:05,733 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-05 16:24:05,733 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-05 16:24:05,759 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-05 16:24:05,760 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-05 16:24:05,760 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-05 16:24:05,761 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-05 16:24:05,761 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-05 16:24:05,762 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-05 16:24:05,762 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-05 16:24:05,763 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-05 16:24:05,763 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-05 16:24:05,763 INFO L153 SettingsManager]: * Use SBE=true [2025-02-05 16:24:05,763 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-05 16:24:05,763 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-05 16:24:05,763 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-05 16:24:05,763 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-05 16:24:05,763 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-05 16:24:05,763 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-05 16:24:05,763 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-05 16:24:05,763 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-05 16:24:05,763 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-05 16:24:05,763 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-05 16:24:05,763 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-05 16:24:05,763 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-05 16:24:05,764 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-05 16:24:05,764 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-05 16:24:05,764 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-05 16:24:05,764 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-05 16:24:05,764 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-05 16:24:05,764 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-05 16:24:05,764 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-05 16:24:05,764 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-05 16:24:05,764 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-05 16:24:05,764 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-05 16:24:05,764 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-05 16:24:05,764 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-05 16:24:05,764 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-05 16:24:05,764 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-05 16:24:05,766 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-05 16:24:05,766 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-05 16:24:05,766 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 88c381f80ede07771f395015e897371ba8d778e07b9cc24c64e290568f2e97f7 [2025-02-05 16:24:06,090 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-05 16:24:06,102 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-05 16:24:06,105 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-05 16:24:06,107 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-05 16:24:06,108 INFO L274 PluginConnector]: CDTParser initialized [2025-02-05 16:24:06,110 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded/rekh_aso.3.M4.c [2025-02-05 16:24:07,465 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/752727a9f/b6f32a06d1254a7ab62bb3e08c8bd1b6/FLAG3f3ca2ce8 [2025-02-05 16:24:07,908 INFO L384 CDTParser]: Found 1 translation units. [2025-02-05 16:24:07,909 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/rekh_aso.3.M4.c [2025-02-05 16:24:07,938 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/752727a9f/b6f32a06d1254a7ab62bb3e08c8bd1b6/FLAG3f3ca2ce8 [2025-02-05 16:24:07,954 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/752727a9f/b6f32a06d1254a7ab62bb3e08c8bd1b6 [2025-02-05 16:24:07,957 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-05 16:24:07,959 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-05 16:24:07,960 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-05 16:24:07,961 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-05 16:24:07,966 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-05 16:24:07,967 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.02 04:24:07" (1/1) ... [2025-02-05 16:24:07,967 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f92fc21 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 04:24:07, skipping insertion in model container [2025-02-05 16:24:07,968 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.02 04:24:07" (1/1) ... [2025-02-05 16:24:08,035 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-05 16:24:08,188 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/rekh_aso.3.M4.c[1806,1819] [2025-02-05 16:24:08,667 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-05 16:24:08,723 INFO L200 MainTranslator]: Completed pre-run [2025-02-05 16:24:08,732 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"/tmp/aaaa/aso.bug3.i","-S") [39] [2025-02-05 16:24:08,737 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/rekh_aso.3.M4.c[1806,1819] [2025-02-05 16:24:09,068 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-05 16:24:09,103 INFO L204 MainTranslator]: Completed translation [2025-02-05 16:24:09,104 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 04:24:09 WrapperNode [2025-02-05 16:24:09,105 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-05 16:24:09,107 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-05 16:24:09,107 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-05 16:24:09,107 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-05 16:24:09,114 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 04:24:09" (1/1) ... [2025-02-05 16:24:09,207 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 04:24:09" (1/1) ... [2025-02-05 16:24:09,680 INFO L138 Inliner]: procedures = 70, calls = 5779, calls flagged for inlining = 24, calls inlined = 24, statements flattened = 12680 [2025-02-05 16:24:09,680 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-05 16:24:09,681 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-05 16:24:09,681 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-05 16:24:09,681 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-05 16:24:09,699 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 04:24:09" (1/1) ... [2025-02-05 16:24:09,699 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 04:24:09" (1/1) ... [2025-02-05 16:24:09,776 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 04:24:09" (1/1) ... [2025-02-05 16:24:09,956 INFO L175 MemorySlicer]: Split 4205 memory accesses to 27 slices as follows [2, 7, 2, 379, 455, 113, 8, 113, 186, 4, 203, 186, 203, 186, 203, 186, 203, 186, 203, 186, 203, 8, 186, 203, 186, 203, 2]. 11 percent of accesses are in the largest equivalence class. The 544 initializations are split as follows [0, 2, 2, 27, 27, 27, 0, 27, 27, 0, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 0, 27, 27, 27, 27, 0]. The 577 writes are split as follows [1, 3, 0, 27, 27, 27, 4, 27, 31, 0, 26, 31, 26, 31, 26, 31, 26, 31, 26, 31, 26, 4, 31, 26, 31, 26, 1]. [2025-02-05 16:24:09,957 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 04:24:09" (1/1) ... [2025-02-05 16:24:09,957 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 04:24:09" (1/1) ... [2025-02-05 16:24:10,170 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 04:24:09" (1/1) ... [2025-02-05 16:24:10,190 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 04:24:09" (1/1) ... [2025-02-05 16:24:10,214 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 04:24:09" (1/1) ... [2025-02-05 16:24:10,248 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 04:24:09" (1/1) ... [2025-02-05 16:24:10,308 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-05 16:24:10,309 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-05 16:24:10,310 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-05 16:24:10,310 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-05 16:24:10,311 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 04:24:09" (1/1) ... [2025-02-05 16:24:10,316 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-05 16:24:10,330 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-05 16:24:10,346 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-02-05 16:24:10,350 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-02-05 16:24:10,378 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-05 16:24:10,378 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_cmd_forward [2025-02-05 16:24:10,378 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_cmd_forward [2025-02-05 16:24:10,378 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2025-02-05 16:24:10,378 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2025-02-05 16:24:10,378 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_nxtway_gs_mode [2025-02-05 16:24:10,378 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_nxtway_gs_mode [2025-02-05 16:24:10,378 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-02-05 16:24:10,378 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2025-02-05 16:24:10,379 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2025-02-05 16:24:10,379 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2025-02-05 16:24:10,379 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2025-02-05 16:24:10,379 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read___startrek_current_priority [2025-02-05 16:24:10,379 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read___startrek_current_priority [2025-02-05 16:24:10,379 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_obstacle_flag [2025-02-05 16:24:10,379 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_obstacle_flag [2025-02-05 16:24:10,379 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-02-05 16:24:10,379 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-02-05 16:24:10,379 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-02-05 16:24:10,379 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-02-05 16:24:10,379 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2025-02-05 16:24:10,379 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2025-02-05 16:24:10,379 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2025-02-05 16:24:10,379 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2025-02-05 16:24:10,379 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2025-02-05 16:24:10,379 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2025-02-05 16:24:10,380 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#10 [2025-02-05 16:24:10,380 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#11 [2025-02-05 16:24:10,380 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#12 [2025-02-05 16:24:10,380 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#13 [2025-02-05 16:24:10,380 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#14 [2025-02-05 16:24:10,380 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#15 [2025-02-05 16:24:10,380 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#16 [2025-02-05 16:24:10,380 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#17 [2025-02-05 16:24:10,380 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#18 [2025-02-05 16:24:10,380 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#19 [2025-02-05 16:24:10,380 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#20 [2025-02-05 16:24:10,380 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#21 [2025-02-05 16:24:10,380 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#22 [2025-02-05 16:24:10,380 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#23 [2025-02-05 16:24:10,380 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#24 [2025-02-05 16:24:10,382 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#25 [2025-02-05 16:24:10,383 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#26 [2025-02-05 16:24:10,383 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2025-02-05 16:24:10,383 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2025-02-05 16:24:10,384 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_version [2025-02-05 16:24:10,384 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_version [2025-02-05 16:24:10,385 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_gyro_sensor [2025-02-05 16:24:10,385 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_gyro_sensor [2025-02-05 16:24:10,385 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_cmd_turn [2025-02-05 16:24:10,385 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_cmd_turn [2025-02-05 16:24:10,385 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write___startrek_current_priority [2025-02-05 16:24:10,385 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write___startrek_current_priority [2025-02-05 16:24:10,385 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts1 [2025-02-05 16:24:10,385 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts1 [2025-02-05 16:24:10,386 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_version [2025-02-05 16:24:10,386 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_version [2025-02-05 16:24:10,386 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts2 [2025-02-05 16:24:10,386 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts2 [2025-02-05 16:24:10,386 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts3 [2025-02-05 16:24:10,386 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts3 [2025-02-05 16:24:10,386 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-02-05 16:24:10,386 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_hyperperiod [2025-02-05 16:24:10,386 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_hyperperiod [2025-02-05 16:24:10,386 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-02-05 16:24:10,386 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-02-05 16:24:10,386 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-02-05 16:24:10,386 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-02-05 16:24:10,386 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2025-02-05 16:24:10,386 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2025-02-05 16:24:10,386 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2025-02-05 16:24:10,386 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2025-02-05 16:24:10,386 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2025-02-05 16:24:10,386 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2025-02-05 16:24:10,386 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#10 [2025-02-05 16:24:10,386 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#11 [2025-02-05 16:24:10,386 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#12 [2025-02-05 16:24:10,386 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#13 [2025-02-05 16:24:10,387 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#14 [2025-02-05 16:24:10,387 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#15 [2025-02-05 16:24:10,387 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#16 [2025-02-05 16:24:10,387 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#17 [2025-02-05 16:24:10,387 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#18 [2025-02-05 16:24:10,387 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#19 [2025-02-05 16:24:10,387 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#20 [2025-02-05 16:24:10,387 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#21 [2025-02-05 16:24:10,387 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#22 [2025-02-05 16:24:10,387 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#23 [2025-02-05 16:24:10,387 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#24 [2025-02-05 16:24:10,387 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#25 [2025-02-05 16:24:10,387 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#26 [2025-02-05 16:24:10,387 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2025-02-05 16:24:10,387 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2025-02-05 16:24:10,387 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_speed [2025-02-05 16:24:10,387 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_speed [2025-02-05 16:24:10,387 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_cmd_forward [2025-02-05 16:24:10,387 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_cmd_forward [2025-02-05 16:24:10,390 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_obstacle_flag [2025-02-05 16:24:10,390 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_obstacle_flag [2025-02-05 16:24:10,390 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-02-05 16:24:10,390 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-02-05 16:24:10,390 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-05 16:24:10,390 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-02-05 16:24:10,391 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-02-05 16:24:10,391 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-02-05 16:24:10,391 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-02-05 16:24:10,391 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2025-02-05 16:24:10,391 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2025-02-05 16:24:10,391 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2025-02-05 16:24:10,391 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2025-02-05 16:24:10,391 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2025-02-05 16:24:10,391 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2025-02-05 16:24:10,391 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2025-02-05 16:24:10,391 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2025-02-05 16:24:10,391 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2025-02-05 16:24:10,391 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2025-02-05 16:24:10,391 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2025-02-05 16:24:10,391 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#16 [2025-02-05 16:24:10,391 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#17 [2025-02-05 16:24:10,391 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#18 [2025-02-05 16:24:10,391 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#19 [2025-02-05 16:24:10,391 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#20 [2025-02-05 16:24:10,392 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#21 [2025-02-05 16:24:10,392 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#22 [2025-02-05 16:24:10,392 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#23 [2025-02-05 16:24:10,392 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#24 [2025-02-05 16:24:10,392 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#25 [2025-02-05 16:24:10,392 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#26 [2025-02-05 16:24:10,392 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-05 16:24:10,392 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-05 16:24:10,392 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_systick_ms [2025-02-05 16:24:10,392 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_systick_ms [2025-02-05 16:24:10,392 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2025-02-05 16:24:10,392 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2025-02-05 16:24:10,392 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtway_gs_mode [2025-02-05 16:24:10,392 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtway_gs_mode [2025-02-05 16:24:10,392 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_cmd_turn [2025-02-05 16:24:10,392 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_cmd_turn [2025-02-05 16:24:11,261 INFO L257 CfgBuilder]: Building ICFG [2025-02-05 16:24:11,264 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-05 16:24:11,813 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L236: 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; [2025-02-05 16:24:11,814 INFO L1309 $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; [2025-02-05 16:24:23,628 INFO L? ?]: Removed 504 outVars from TransFormulas that were not future-live. [2025-02-05 16:24:23,629 INFO L308 CfgBuilder]: Performing block encoding [2025-02-05 16:24:23,724 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-05 16:24:23,724 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-05 16:24:23,725 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 05.02 04:24:23 BoogieIcfgContainer [2025-02-05 16:24:23,725 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-05 16:24:23,727 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-05 16:24:23,728 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-05 16:24:23,732 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-05 16:24:23,733 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.02 04:24:07" (1/3) ... [2025-02-05 16:24:23,735 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1be7f3e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.02 04:24:23, skipping insertion in model container [2025-02-05 16:24:23,736 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 04:24:09" (2/3) ... [2025-02-05 16:24:23,737 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1be7f3e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.02 04:24:23, skipping insertion in model container [2025-02-05 16:24:23,737 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 05.02 04:24:23" (3/3) ... [2025-02-05 16:24:23,739 INFO L128 eAbstractionObserver]: Analyzing ICFG rekh_aso.3.M4.c [2025-02-05 16:24:23,754 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-05 16:24:23,759 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG rekh_aso.3.M4.c that has 27 procedures, 3464 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2025-02-05 16:24:23,928 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-05 16:24:23,939 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;@45adb9c7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-05 16:24:23,941 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-02-05 16:24:23,957 INFO L276 IsEmpty]: Start isEmpty. Operand has 3464 states, 1925 states have (on average 1.1755844155844155) internal successors, (2263), 2055 states have internal predecessors, (2263), 1511 states have call successors, (1511), 26 states have call predecessors, (1511), 26 states have return successors, (1511), 1411 states have call predecessors, (1511), 1511 states have call successors, (1511) [2025-02-05 16:24:24,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1379 [2025-02-05 16:24:24,040 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 16:24:24,041 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, 1, 1] [2025-02-05 16:24:24,042 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 16:24:24,046 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 16:24:24,047 INFO L85 PathProgramCache]: Analyzing trace with hash -1846111677, now seen corresponding path program 1 times [2025-02-05 16:24:24,054 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 16:24:24,054 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2074503638] [2025-02-05 16:24:24,055 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 16:24:24,056 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 16:24:26,235 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1378 statements into 1 equivalence classes. [2025-02-05 16:24:26,484 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1378 of 1378 statements. [2025-02-05 16:24:26,485 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 16:24:26,485 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 16:24:27,825 INFO L134 CoverageAnalysis]: Checked inductivity of 87780 backedges. 0 proven. 418 refuted. 0 times theorem prover too weak. 87362 trivial. 0 not checked. [2025-02-05 16:24:27,825 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 16:24:27,826 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2074503638] [2025-02-05 16:24:27,826 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2074503638] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-05 16:24:27,827 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [611404659] [2025-02-05 16:24:27,827 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 16:24:27,827 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-05 16:24:27,827 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-05 16:24:27,831 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-05 16:24:27,832 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-02-05 16:24:29,917 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1378 statements into 1 equivalence classes. [2025-02-05 16:24:30,590 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1378 of 1378 statements. [2025-02-05 16:24:30,591 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 16:24:30,591 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 16:24:30,616 INFO L256 TraceCheckSpWp]: Trace formula consists of 5917 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-02-05 16:24:30,650 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-05 16:24:30,752 INFO L134 CoverageAnalysis]: Checked inductivity of 87780 backedges. 418 proven. 0 refuted. 0 times theorem prover too weak. 87362 trivial. 0 not checked. [2025-02-05 16:24:30,753 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-05 16:24:30,753 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [611404659] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 16:24:30,753 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-05 16:24:30,754 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2025-02-05 16:24:30,756 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [459133315] [2025-02-05 16:24:30,756 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 16:24:30,761 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-02-05 16:24:30,762 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 16:24:30,782 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-02-05 16:24:30,783 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-05 16:24:30,795 INFO L87 Difference]: Start difference. First operand has 3464 states, 1925 states have (on average 1.1755844155844155) internal successors, (2263), 2055 states have internal predecessors, (2263), 1511 states have call successors, (1511), 26 states have call predecessors, (1511), 26 states have return successors, (1511), 1411 states have call predecessors, (1511), 1511 states have call successors, (1511) Second operand has 2 states, 2 states have (on average 163.5) internal successors, (327), 2 states have internal predecessors, (327), 2 states have call successors, (214), 2 states have call predecessors, (214), 1 states have return successors, (212), 1 states have call predecessors, (212), 2 states have call successors, (212) [2025-02-05 16:24:31,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 16:24:31,265 INFO L93 Difference]: Finished difference Result 6923 states and 12047 transitions. [2025-02-05 16:24:31,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-02-05 16:24:31,269 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 163.5) internal successors, (327), 2 states have internal predecessors, (327), 2 states have call successors, (214), 2 states have call predecessors, (214), 1 states have return successors, (212), 1 states have call predecessors, (212), 2 states have call successors, (212) Word has length 1378 [2025-02-05 16:24:31,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 16:24:31,378 INFO L225 Difference]: With dead ends: 6923 [2025-02-05 16:24:31,379 INFO L226 Difference]: Without dead ends: 3459 [2025-02-05 16:24:31,441 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1379 GetRequests, 1379 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-05 16:24:31,444 INFO L435 NwaCegarLoop]: 5283 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, 5283 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 [2025-02-05 16:24:31,444 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 5283 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-05 16:24:31,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3459 states. [2025-02-05 16:24:32,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3459 to 3459. [2025-02-05 16:24:32,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3459 states, 1921 states have (on average 1.1749089016137428) internal successors, (2257), 2051 states have internal predecessors, (2257), 1511 states have call successors, (1511), 26 states have call predecessors, (1511), 26 states have return successors, (1510), 1410 states have call predecessors, (1510), 1510 states have call successors, (1510) [2025-02-05 16:24:32,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3459 states to 3459 states and 5278 transitions. [2025-02-05 16:24:32,703 INFO L78 Accepts]: Start accepts. Automaton has 3459 states and 5278 transitions. Word has length 1378 [2025-02-05 16:24:32,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 16:24:32,705 INFO L471 AbstractCegarLoop]: Abstraction has 3459 states and 5278 transitions. [2025-02-05 16:24:32,706 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 163.5) internal successors, (327), 2 states have internal predecessors, (327), 2 states have call successors, (214), 2 states have call predecessors, (214), 1 states have return successors, (212), 1 states have call predecessors, (212), 2 states have call successors, (212) [2025-02-05 16:24:32,706 INFO L276 IsEmpty]: Start isEmpty. Operand 3459 states and 5278 transitions. [2025-02-05 16:24:32,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1379 [2025-02-05 16:24:32,813 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 16:24:32,814 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, 1, 1] [2025-02-05 16:24:32,837 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-02-05 16:24:33,016 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2025-02-05 16:24:33,017 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 16:24:33,017 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 16:24:33,018 INFO L85 PathProgramCache]: Analyzing trace with hash 1138628575, now seen corresponding path program 1 times [2025-02-05 16:24:33,018 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 16:24:33,018 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [187795941] [2025-02-05 16:24:33,018 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 16:24:33,018 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 16:24:34,369 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1378 statements into 1 equivalence classes. [2025-02-05 16:24:34,867 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1378 of 1378 statements. [2025-02-05 16:24:34,868 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 16:24:34,868 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 16:24:36,672 INFO L134 CoverageAnalysis]: Checked inductivity of 87780 backedges. 624 proven. 3 refuted. 0 times theorem prover too weak. 87153 trivial. 0 not checked. [2025-02-05 16:24:36,672 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 16:24:36,672 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [187795941] [2025-02-05 16:24:36,673 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [187795941] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-05 16:24:36,673 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1493407184] [2025-02-05 16:24:36,673 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 16:24:36,674 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-05 16:24:36,674 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-05 16:24:36,676 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-05 16:24:36,679 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-02-05 16:24:38,896 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1378 statements into 1 equivalence classes. [2025-02-05 16:24:39,523 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1378 of 1378 statements. [2025-02-05 16:24:39,524 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 16:24:39,524 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 16:24:39,551 INFO L256 TraceCheckSpWp]: Trace formula consists of 5917 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-02-05 16:24:39,572 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-05 16:24:39,646 INFO L134 CoverageAnalysis]: Checked inductivity of 87780 backedges. 1460 proven. 0 refuted. 0 times theorem prover too weak. 86320 trivial. 0 not checked. [2025-02-05 16:24:39,647 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-05 16:24:39,647 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1493407184] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 16:24:39,647 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-05 16:24:39,647 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 4 [2025-02-05 16:24:39,648 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [268427147] [2025-02-05 16:24:39,648 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 16:24:39,652 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-05 16:24:39,652 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 16:24:39,654 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-05 16:24:39,654 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-05 16:24:39,654 INFO L87 Difference]: Start difference. First operand 3459 states and 5278 transitions. Second operand has 4 states, 4 states have (on average 82.75) internal successors, (331), 4 states have internal predecessors, (331), 2 states have call successors, (214), 2 states have call predecessors, (214), 3 states have return successors, (212), 2 states have call predecessors, (212), 2 states have call successors, (212) [2025-02-05 16:24:49,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 16:24:49,572 INFO L93 Difference]: Finished difference Result 6913 states and 10579 transitions. [2025-02-05 16:24:49,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-05 16:24:49,574 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 82.75) internal successors, (331), 4 states have internal predecessors, (331), 2 states have call successors, (214), 2 states have call predecessors, (214), 3 states have return successors, (212), 2 states have call predecessors, (212), 2 states have call successors, (212) Word has length 1378 [2025-02-05 16:24:49,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 16:24:49,626 INFO L225 Difference]: With dead ends: 6913 [2025-02-05 16:24:49,629 INFO L226 Difference]: Without dead ends: 3457 [2025-02-05 16:24:49,676 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1382 GetRequests, 1379 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-02-05 16:24:49,677 INFO L435 NwaCegarLoop]: 3910 mSDtfsCounter, 1 mSDsluCounter, 5087 mSDsCounter, 0 mSdLazyCounter, 6822 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 8997 SdHoareTripleChecker+Invalid, 6826 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 6822 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.4s IncrementalHoareTripleChecker+Time [2025-02-05 16:24:49,678 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 8997 Invalid, 6826 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4 Valid, 6822 Invalid, 0 Unknown, 0 Unchecked, 9.4s Time] [2025-02-05 16:24:49,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3457 states. [2025-02-05 16:24:50,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3457 to 3455. [2025-02-05 16:24:50,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3455 states, 1919 states have (on average 1.174048983845753) internal successors, (2253), 2049 states have internal predecessors, (2253), 1509 states have call successors, (1509), 26 states have call predecessors, (1509), 26 states have return successors, (1508), 1408 states have call predecessors, (1508), 1508 states have call successors, (1508) [2025-02-05 16:24:50,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3455 states to 3455 states and 5270 transitions. [2025-02-05 16:24:50,565 INFO L78 Accepts]: Start accepts. Automaton has 3455 states and 5270 transitions. Word has length 1378 [2025-02-05 16:24:50,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 16:24:50,574 INFO L471 AbstractCegarLoop]: Abstraction has 3455 states and 5270 transitions. [2025-02-05 16:24:50,575 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 82.75) internal successors, (331), 4 states have internal predecessors, (331), 2 states have call successors, (214), 2 states have call predecessors, (214), 3 states have return successors, (212), 2 states have call predecessors, (212), 2 states have call successors, (212) [2025-02-05 16:24:50,575 INFO L276 IsEmpty]: Start isEmpty. Operand 3455 states and 5270 transitions. [2025-02-05 16:24:50,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1420 [2025-02-05 16:24:50,594 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 16:24:50,595 INFO L218 NwaCegarLoop]: trace histogram [209, 209, 209, 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, 1, 1, 1] [2025-02-05 16:24:50,615 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-02-05 16:24:50,795 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-05 16:24:50,796 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 16:24:50,796 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 16:24:50,797 INFO L85 PathProgramCache]: Analyzing trace with hash -932351476, now seen corresponding path program 1 times [2025-02-05 16:24:50,797 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 16:24:50,797 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1942535824] [2025-02-05 16:24:50,797 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 16:24:50,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 16:24:51,968 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1419 statements into 1 equivalence classes. [2025-02-05 16:24:52,297 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1419 of 1419 statements. [2025-02-05 16:24:52,297 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 16:24:52,297 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 16:24:53,060 INFO L134 CoverageAnalysis]: Checked inductivity of 86949 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 86949 trivial. 0 not checked. [2025-02-05 16:24:53,061 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 16:24:53,061 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1942535824] [2025-02-05 16:24:53,061 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1942535824] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 16:24:53,061 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 16:24:53,061 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-05 16:24:53,061 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [564443807] [2025-02-05 16:24:53,062 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 16:24:53,063 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-05 16:24:53,064 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 16:24:53,065 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-05 16:24:53,065 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-05 16:24:53,070 INFO L87 Difference]: Start difference. First operand 3455 states and 5270 transitions. Second operand has 3 states, 3 states have (on average 120.0) internal successors, (360), 3 states have internal predecessors, (360), 2 states have call successors, (217), 2 states have call predecessors, (217), 2 states have return successors, (215), 2 states have call predecessors, (215), 2 states have call successors, (215) [2025-02-05 16:24:53,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 16:24:53,236 INFO L93 Difference]: Finished difference Result 6905 states and 10561 transitions. [2025-02-05 16:24:53,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-05 16:24:53,238 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 120.0) internal successors, (360), 3 states have internal predecessors, (360), 2 states have call successors, (217), 2 states have call predecessors, (217), 2 states have return successors, (215), 2 states have call predecessors, (215), 2 states have call successors, (215) Word has length 1419 [2025-02-05 16:24:53,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 16:24:53,281 INFO L225 Difference]: With dead ends: 6905 [2025-02-05 16:24:53,282 INFO L226 Difference]: Without dead ends: 3455 [2025-02-05 16:24:53,309 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 [2025-02-05 16:24:53,312 INFO L435 NwaCegarLoop]: 5268 mSDtfsCounter, 0 mSDsluCounter, 5258 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 10526 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 [2025-02-05 16:24:53,312 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 10526 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-05 16:24:53,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3455 states. [2025-02-05 16:24:54,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3455 to 3455. [2025-02-05 16:24:54,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3455 states, 1919 states have (on average 1.1735278791036998) internal successors, (2252), 2049 states have internal predecessors, (2252), 1509 states have call successors, (1509), 26 states have call predecessors, (1509), 26 states have return successors, (1508), 1408 states have call predecessors, (1508), 1508 states have call successors, (1508) [2025-02-05 16:24:54,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3455 states to 3455 states and 5269 transitions. [2025-02-05 16:24:54,439 INFO L78 Accepts]: Start accepts. Automaton has 3455 states and 5269 transitions. Word has length 1419 [2025-02-05 16:24:54,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 16:24:54,444 INFO L471 AbstractCegarLoop]: Abstraction has 3455 states and 5269 transitions. [2025-02-05 16:24:54,444 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 120.0) internal successors, (360), 3 states have internal predecessors, (360), 2 states have call successors, (217), 2 states have call predecessors, (217), 2 states have return successors, (215), 2 states have call predecessors, (215), 2 states have call successors, (215) [2025-02-05 16:24:54,444 INFO L276 IsEmpty]: Start isEmpty. Operand 3455 states and 5269 transitions. [2025-02-05 16:24:54,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1428 [2025-02-05 16:24:54,477 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 16:24:54,478 INFO L218 NwaCegarLoop]: trace histogram [209, 209, 209, 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, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 16:24:54,478 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-02-05 16:24:54,478 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 16:24:54,479 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 16:24:54,480 INFO L85 PathProgramCache]: Analyzing trace with hash -1176490421, now seen corresponding path program 1 times [2025-02-05 16:24:54,480 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 16:24:54,480 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1045302897] [2025-02-05 16:24:54,480 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 16:24:54,481 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 16:24:55,826 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1427 statements into 1 equivalence classes. [2025-02-05 16:24:56,056 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1427 of 1427 statements. [2025-02-05 16:24:56,056 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 16:24:56,056 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 16:24:57,826 INFO L134 CoverageAnalysis]: Checked inductivity of 86952 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 86948 trivial. 0 not checked. [2025-02-05 16:24:57,826 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 16:24:57,826 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1045302897] [2025-02-05 16:24:57,826 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1045302897] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 16:24:57,826 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 16:24:57,827 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-02-05 16:24:57,827 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1886177226] [2025-02-05 16:24:57,827 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 16:24:57,828 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-05 16:24:57,828 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 16:24:57,830 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-05 16:24:57,830 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2025-02-05 16:24:57,830 INFO L87 Difference]: Start difference. First operand 3455 states and 5269 transitions. Second operand has 6 states, 6 states have (on average 60.833333333333336) internal successors, (365), 6 states have internal predecessors, (365), 4 states have call successors, (219), 2 states have call predecessors, (219), 4 states have return successors, (217), 4 states have call predecessors, (217), 4 states have call successors, (217) [2025-02-05 16:25:10,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 16:25:10,179 INFO L93 Difference]: Finished difference Result 7942 states and 12122 transitions. [2025-02-05 16:25:10,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-05 16:25:10,179 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 60.833333333333336) internal successors, (365), 6 states have internal predecessors, (365), 4 states have call successors, (219), 2 states have call predecessors, (219), 4 states have return successors, (217), 4 states have call predecessors, (217), 4 states have call successors, (217) Word has length 1427 [2025-02-05 16:25:10,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 16:25:10,235 INFO L225 Difference]: With dead ends: 7942 [2025-02-05 16:25:10,235 INFO L226 Difference]: Without dead ends: 4492 [2025-02-05 16:25:10,269 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2025-02-05 16:25:10,270 INFO L435 NwaCegarLoop]: 6750 mSDtfsCounter, 9785 mSDsluCounter, 2966 mSDsCounter, 0 mSdLazyCounter, 3934 mSolverCounterSat, 3805 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9785 SdHoareTripleChecker+Valid, 9716 SdHoareTripleChecker+Invalid, 7739 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3805 IncrementalHoareTripleChecker+Valid, 3934 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.7s IncrementalHoareTripleChecker+Time [2025-02-05 16:25:10,270 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [9785 Valid, 9716 Invalid, 7739 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3805 Valid, 3934 Invalid, 0 Unknown, 0 Unchecked, 11.7s Time] [2025-02-05 16:25:10,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4492 states. [2025-02-05 16:25:11,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4492 to 4489. [2025-02-05 16:25:11,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4489 states, 2574 states have (on average 1.193084693084693) internal successors, (3071), 2704 states have internal predecessors, (3071), 1876 states have call successors, (1876), 39 states have call predecessors, (1876), 38 states have return successors, (1875), 1774 states have call predecessors, (1875), 1875 states have call successors, (1875) [2025-02-05 16:25:11,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4489 states to 4489 states and 6822 transitions. [2025-02-05 16:25:11,696 INFO L78 Accepts]: Start accepts. Automaton has 4489 states and 6822 transitions. Word has length 1427 [2025-02-05 16:25:11,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 16:25:11,698 INFO L471 AbstractCegarLoop]: Abstraction has 4489 states and 6822 transitions. [2025-02-05 16:25:11,699 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 60.833333333333336) internal successors, (365), 6 states have internal predecessors, (365), 4 states have call successors, (219), 2 states have call predecessors, (219), 4 states have return successors, (217), 4 states have call predecessors, (217), 4 states have call successors, (217) [2025-02-05 16:25:11,699 INFO L276 IsEmpty]: Start isEmpty. Operand 4489 states and 6822 transitions. [2025-02-05 16:25:11,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1424 [2025-02-05 16:25:11,719 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 16:25:11,720 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] [2025-02-05 16:25:11,720 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-02-05 16:25:11,721 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 16:25:11,722 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 16:25:11,722 INFO L85 PathProgramCache]: Analyzing trace with hash 1180066741, now seen corresponding path program 1 times [2025-02-05 16:25:11,722 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 16:25:11,722 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1028847820] [2025-02-05 16:25:11,723 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 16:25:11,723 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 16:25:12,975 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1423 statements into 1 equivalence classes. [2025-02-05 16:25:13,295 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1423 of 1423 statements. [2025-02-05 16:25:13,296 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 16:25:13,296 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat