./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/seq-mthreaded/rekh_aso.1.M4-1.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.1.M4-1.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 6591ce47dfe4224cb6f7a03e7ab6e8c9fb535aeaf619e89bc0784a15f3516b25 --- Real Ultimate output --- This is Ultimate 0.3.0-?-e2fb8be-m [2025-03-08 06:09:05,511 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-08 06:09:05,573 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-03-08 06:09:05,577 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-08 06:09:05,577 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-08 06:09:05,600 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-08 06:09:05,601 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-08 06:09:05,601 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-08 06:09:05,602 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-08 06:09:05,602 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-08 06:09:05,602 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-08 06:09:05,602 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-08 06:09:05,602 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-08 06:09:05,602 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-08 06:09:05,602 INFO L153 SettingsManager]: * Use SBE=true [2025-03-08 06:09:05,603 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-08 06:09:05,603 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-08 06:09:05,603 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-08 06:09:05,603 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-08 06:09:05,603 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-08 06:09:05,603 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-08 06:09:05,603 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-08 06:09:05,603 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-08 06:09:05,603 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-08 06:09:05,603 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-08 06:09:05,603 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-08 06:09:05,603 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-08 06:09:05,603 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-08 06:09:05,603 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-08 06:09:05,603 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-08 06:09:05,604 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-08 06:09:05,604 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-08 06:09:05,604 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 06:09:05,604 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-08 06:09:05,604 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-08 06:09:05,604 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-08 06:09:05,604 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-08 06:09:05,604 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-08 06:09:05,604 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-08 06:09:05,604 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-08 06:09:05,604 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-08 06:09:05,604 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-08 06:09:05,604 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-08 06:09:05,604 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 -> 6591ce47dfe4224cb6f7a03e7ab6e8c9fb535aeaf619e89bc0784a15f3516b25 [2025-03-08 06:09:05,823 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-08 06:09:05,830 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-08 06:09:05,832 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-08 06:09:05,833 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-08 06:09:05,834 INFO L274 PluginConnector]: CDTParser initialized [2025-03-08 06:09:05,835 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded/rekh_aso.1.M4-1.c [2025-03-08 06:09:07,038 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a17e6c914/8765af3f89754ba3a506667b07f3731d/FLAG098d2bd2f [2025-03-08 06:09:07,377 INFO L384 CDTParser]: Found 1 translation units. [2025-03-08 06:09:07,379 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/rekh_aso.1.M4-1.c [2025-03-08 06:09:07,399 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a17e6c914/8765af3f89754ba3a506667b07f3731d/FLAG098d2bd2f [2025-03-08 06:09:07,604 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a17e6c914/8765af3f89754ba3a506667b07f3731d [2025-03-08 06:09:07,605 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-08 06:09:07,608 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-08 06:09:07,609 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-08 06:09:07,609 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-08 06:09:07,613 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-08 06:09:07,614 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 06:09:07" (1/1) ... [2025-03-08 06:09:07,614 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@72373dfa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:09:07, skipping insertion in model container [2025-03-08 06:09:07,615 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 06:09:07" (1/1) ... [2025-03-08 06:09:07,663 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-08 06:09:07,781 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.1.M4-1.c[1800,1813] [2025-03-08 06:09:08,048 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 06:09:08,067 INFO L200 MainTranslator]: Completed pre-run [2025-03-08 06:09:08,074 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"/tmp/aaaa/aso.ok1.i","-S") [43] [2025-03-08 06:09:08,080 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.1.M4-1.c[1800,1813] [2025-03-08 06:09:08,262 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 06:09:08,287 INFO L204 MainTranslator]: Completed translation [2025-03-08 06:09:08,288 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:09:08 WrapperNode [2025-03-08 06:09:08,288 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-08 06:09:08,289 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-08 06:09:08,289 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-08 06:09:08,290 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-08 06:09:08,293 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:09:08" (1/1) ... [2025-03-08 06:09:08,342 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:09:08" (1/1) ... [2025-03-08 06:09:08,528 INFO L138 Inliner]: procedures = 60, calls = 3478, calls flagged for inlining = 18, calls inlined = 18, statements flattened = 7561 [2025-03-08 06:09:08,529 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-08 06:09:08,529 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-08 06:09:08,530 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-08 06:09:08,530 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-08 06:09:08,536 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:09:08" (1/1) ... [2025-03-08 06:09:08,536 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:09:08" (1/1) ... [2025-03-08 06:09:08,586 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:09:08" (1/1) ... [2025-03-08 06:09:08,654 INFO L175 MemorySlicer]: Split 2489 memory accesses to 19 slices as follows [2, 2, 319, 355, 113, 113, 186, 8, 203, 186, 203, 186, 203, 186, 203, 4, 2, 7, 8]. 14 percent of accesses are in the largest equivalence class. The 328 initializations are split as follows [2, 0, 27, 27, 27, 27, 27, 0, 27, 27, 27, 27, 27, 27, 27, 0, 0, 2, 0]. The 349 writes are split as follows [0, 1, 27, 27, 27, 27, 31, 4, 26, 31, 26, 31, 26, 31, 26, 0, 1, 3, 4]. [2025-03-08 06:09:08,655 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:09:08" (1/1) ... [2025-03-08 06:09:08,656 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:09:08" (1/1) ... [2025-03-08 06:09:08,829 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:09:08" (1/1) ... [2025-03-08 06:09:08,850 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:09:08" (1/1) ... [2025-03-08 06:09:08,872 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:09:08" (1/1) ... [2025-03-08 06:09:08,890 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:09:08" (1/1) ... [2025-03-08 06:09:08,964 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-08 06:09:08,966 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-08 06:09:08,966 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-08 06:09:08,966 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-08 06:09:08,967 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:09:08" (1/1) ... [2025-03-08 06:09:08,971 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 06:09:08,981 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 06:09:09,011 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 06:09:09,021 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 06:09:09,035 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-08 06:09:09,035 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_cmd_forward [2025-03-08 06:09:09,035 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_cmd_forward [2025-03-08 06:09:09,036 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2025-03-08 06:09:09,036 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2025-03-08 06:09:09,036 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_nxtway_gs_mode [2025-03-08 06:09:09,036 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_nxtway_gs_mode [2025-03-08 06:09:09,036 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-03-08 06:09:09,036 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2025-03-08 06:09:09,036 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2025-03-08 06:09:09,036 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2025-03-08 06:09:09,036 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2025-03-08 06:09:09,036 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_obstacle_flag [2025-03-08 06:09:09,036 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_obstacle_flag [2025-03-08 06:09:09,037 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-03-08 06:09:09,037 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-03-08 06:09:09,037 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-03-08 06:09:09,037 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-03-08 06:09:09,037 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2025-03-08 06:09:09,037 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2025-03-08 06:09:09,037 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2025-03-08 06:09:09,037 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2025-03-08 06:09:09,037 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2025-03-08 06:09:09,037 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2025-03-08 06:09:09,037 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#10 [2025-03-08 06:09:09,038 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#11 [2025-03-08 06:09:09,038 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#12 [2025-03-08 06:09:09,038 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#13 [2025-03-08 06:09:09,038 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#14 [2025-03-08 06:09:09,038 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#15 [2025-03-08 06:09:09,038 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#16 [2025-03-08 06:09:09,038 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#17 [2025-03-08 06:09:09,038 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#18 [2025-03-08 06:09:09,038 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2025-03-08 06:09:09,038 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2025-03-08 06:09:09,038 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_gyro_sensor [2025-03-08 06:09:09,038 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_gyro_sensor [2025-03-08 06:09:09,038 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_cmd_turn [2025-03-08 06:09:09,038 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_cmd_turn [2025-03-08 06:09:09,038 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts1 [2025-03-08 06:09:09,038 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts1 [2025-03-08 06:09:09,038 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts2 [2025-03-08 06:09:09,038 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts2 [2025-03-08 06:09:09,038 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts3 [2025-03-08 06:09:09,039 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts3 [2025-03-08 06:09:09,039 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-03-08 06:09:09,039 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_hyperperiod [2025-03-08 06:09:09,039 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_hyperperiod [2025-03-08 06:09:09,039 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-03-08 06:09:09,039 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-03-08 06:09:09,039 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-03-08 06:09:09,039 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-03-08 06:09:09,039 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2025-03-08 06:09:09,039 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2025-03-08 06:09:09,039 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2025-03-08 06:09:09,039 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2025-03-08 06:09:09,039 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2025-03-08 06:09:09,039 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2025-03-08 06:09:09,039 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#10 [2025-03-08 06:09:09,039 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#11 [2025-03-08 06:09:09,039 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#12 [2025-03-08 06:09:09,039 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#13 [2025-03-08 06:09:09,039 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#14 [2025-03-08 06:09:09,039 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#15 [2025-03-08 06:09:09,039 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#16 [2025-03-08 06:09:09,039 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#17 [2025-03-08 06:09:09,039 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#18 [2025-03-08 06:09:09,039 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2025-03-08 06:09:09,039 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2025-03-08 06:09:09,039 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_speed [2025-03-08 06:09:09,039 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_speed [2025-03-08 06:09:09,039 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_cmd_forward [2025-03-08 06:09:09,039 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_cmd_forward [2025-03-08 06:09:09,039 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_obstacle_flag [2025-03-08 06:09:09,039 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_obstacle_flag [2025-03-08 06:09:09,039 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-03-08 06:09:09,039 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-03-08 06:09:09,039 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-08 06:09:09,040 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-03-08 06:09:09,040 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-03-08 06:09:09,040 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-03-08 06:09:09,040 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-03-08 06:09:09,040 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2025-03-08 06:09:09,040 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2025-03-08 06:09:09,040 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2025-03-08 06:09:09,040 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2025-03-08 06:09:09,040 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2025-03-08 06:09:09,040 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2025-03-08 06:09:09,040 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2025-03-08 06:09:09,040 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2025-03-08 06:09:09,040 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2025-03-08 06:09:09,040 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2025-03-08 06:09:09,040 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2025-03-08 06:09:09,040 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#16 [2025-03-08 06:09:09,040 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#17 [2025-03-08 06:09:09,040 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#18 [2025-03-08 06:09:09,040 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-08 06:09:09,040 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-08 06:09:09,040 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_systick_ms [2025-03-08 06:09:09,043 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_systick_ms [2025-03-08 06:09:09,043 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2025-03-08 06:09:09,043 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2025-03-08 06:09:09,044 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtway_gs_mode [2025-03-08 06:09:09,044 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtway_gs_mode [2025-03-08 06:09:09,044 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_cmd_turn [2025-03-08 06:09:09,044 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_cmd_turn [2025-03-08 06:09:09,510 INFO L256 CfgBuilder]: Building ICFG [2025-03-08 06:09:09,512 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-08 06:09:10,121 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L85: 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 06:09:10,122 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L216: 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 06:09:17,894 INFO L? ?]: Removed 404 outVars from TransFormulas that were not future-live. [2025-03-08 06:09:17,894 INFO L307 CfgBuilder]: Performing block encoding [2025-03-08 06:09:17,936 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-08 06:09:17,936 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-08 06:09:17,936 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 06:09:17 BoogieIcfgContainer [2025-03-08 06:09:17,937 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-08 06:09:17,938 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-08 06:09:17,939 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-08 06:09:17,944 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-08 06:09:17,944 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.03 06:09:07" (1/3) ... [2025-03-08 06:09:17,945 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3cc067dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 06:09:17, skipping insertion in model container [2025-03-08 06:09:17,945 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:09:08" (2/3) ... [2025-03-08 06:09:17,945 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3cc067dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 06:09:17, skipping insertion in model container [2025-03-08 06:09:17,945 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 06:09:17" (3/3) ... [2025-03-08 06:09:17,946 INFO L128 eAbstractionObserver]: Analyzing ICFG rekh_aso.1.M4-1.c [2025-03-08 06:09:17,956 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-08 06:09:17,960 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG rekh_aso.1.M4-1.c that has 23 procedures, 2216 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2025-03-08 06:09:18,034 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-08 06:09:18,042 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;@232e7f8f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-08 06:09:18,042 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-03-08 06:09:18,050 INFO L276 IsEmpty]: Start isEmpty. Operand has 2216 states, 1252 states have (on average 1.2172523961661341) internal successors, (1524), 1381 states have internal predecessors, (1524), 940 states have call successors, (940), 22 states have call predecessors, (940), 22 states have return successors, (940), 840 states have call predecessors, (940), 940 states have call successors, (940) [2025-03-08 06:09:18,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1339 [2025-03-08 06:09:18,115 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 06:09:18,116 INFO L218 NwaCegarLoop]: trace histogram [209, 209, 209, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:09:18,117 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 06:09:18,121 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 06:09:18,122 INFO L85 PathProgramCache]: Analyzing trace with hash 85457586, now seen corresponding path program 1 times [2025-03-08 06:09:18,127 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 06:09:18,129 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [411433817] [2025-03-08 06:09:18,130 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 06:09:18,130 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 06:09:18,930 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1338 statements into 1 equivalence classes. [2025-03-08 06:09:19,042 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1338 of 1338 statements. [2025-03-08 06:09:19,043 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 06:09:19,043 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 06:09:19,831 INFO L134 CoverageAnalysis]: Checked inductivity of 86944 backedges. 0 proven. 416 refuted. 0 times theorem prover too weak. 86528 trivial. 0 not checked. [2025-03-08 06:09:19,833 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 06:09:19,834 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [411433817] [2025-03-08 06:09:19,835 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [411433817] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 06:09:19,835 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [492891449] [2025-03-08 06:09:19,835 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 06:09:19,835 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 06:09:19,835 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 06:09:19,839 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 06:09:19,841 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 06:09:20,910 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1338 statements into 1 equivalence classes. [2025-03-08 06:09:21,401 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1338 of 1338 statements. [2025-03-08 06:09:21,402 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 06:09:21,402 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 06:09:21,422 INFO L256 TraceCheckSpWp]: Trace formula consists of 4650 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-03-08 06:09:21,455 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 06:09:21,545 INFO L134 CoverageAnalysis]: Checked inductivity of 86944 backedges. 416 proven. 0 refuted. 0 times theorem prover too weak. 86528 trivial. 0 not checked. [2025-03-08 06:09:21,545 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-08 06:09:21,545 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [492891449] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 06:09:21,545 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-08 06:09:21,546 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2025-03-08 06:09:21,547 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2036424906] [2025-03-08 06:09:21,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 06:09:21,553 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-03-08 06:09:21,553 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 06:09:21,573 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-03-08 06:09:21,573 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-08 06:09:21,580 INFO L87 Difference]: Start difference. First operand has 2216 states, 1252 states have (on average 1.2172523961661341) internal successors, (1524), 1381 states have internal predecessors, (1524), 940 states have call successors, (940), 22 states have call predecessors, (940), 22 states have return successors, (940), 840 states have call predecessors, (940), 940 states have call successors, (940) Second operand has 2 states, 2 states have (on average 146.0) internal successors, (292), 2 states have internal predecessors, (292), 2 states have call successors, (213), 2 states have call predecessors, (213), 1 states have return successors, (211), 1 states have call predecessors, (211), 2 states have call successors, (211) [2025-03-08 06:09:21,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 06:09:21,809 INFO L93 Difference]: Finished difference Result 4427 states and 7722 transitions. [2025-03-08 06:09:21,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-08 06:09:21,812 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 146.0) internal successors, (292), 2 states have internal predecessors, (292), 2 states have call successors, (213), 2 states have call predecessors, (213), 1 states have return successors, (211), 1 states have call predecessors, (211), 2 states have call successors, (211) Word has length 1338 [2025-03-08 06:09:21,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 06:09:21,850 INFO L225 Difference]: With dead ends: 4427 [2025-03-08 06:09:21,850 INFO L226 Difference]: Without dead ends: 2211 [2025-03-08 06:09:21,884 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1339 GetRequests, 1339 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 06:09:21,887 INFO L435 NwaCegarLoop]: 3402 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, 3402 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 06:09:21,889 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3402 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-08 06:09:21,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2211 states. [2025-03-08 06:09:22,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2211 to 2211. [2025-03-08 06:09:22,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2211 states, 1248 states have (on average 1.2163461538461537) internal successors, (1518), 1377 states have internal predecessors, (1518), 940 states have call successors, (940), 22 states have call predecessors, (940), 22 states have return successors, (939), 839 states have call predecessors, (939), 939 states have call successors, (939) [2025-03-08 06:09:22,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2211 states to 2211 states and 3397 transitions. [2025-03-08 06:09:22,337 INFO L78 Accepts]: Start accepts. Automaton has 2211 states and 3397 transitions. Word has length 1338 [2025-03-08 06:09:22,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 06:09:22,338 INFO L471 AbstractCegarLoop]: Abstraction has 2211 states and 3397 transitions. [2025-03-08 06:09:22,339 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 146.0) internal successors, (292), 2 states have internal predecessors, (292), 2 states have call successors, (213), 2 states have call predecessors, (213), 1 states have return successors, (211), 1 states have call predecessors, (211), 2 states have call successors, (211) [2025-03-08 06:09:22,339 INFO L276 IsEmpty]: Start isEmpty. Operand 2211 states and 3397 transitions. [2025-03-08 06:09:22,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1339 [2025-03-08 06:09:22,380 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 06:09:22,381 INFO L218 NwaCegarLoop]: trace histogram [209, 209, 209, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:09:22,398 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-03-08 06:09:22,582 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 06:09:22,582 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 06:09:22,583 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 06:09:22,583 INFO L85 PathProgramCache]: Analyzing trace with hash -2060096883, now seen corresponding path program 1 times [2025-03-08 06:09:22,583 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 06:09:22,583 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2115389452] [2025-03-08 06:09:22,584 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 06:09:22,584 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 06:09:23,215 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1338 statements into 1 equivalence classes. [2025-03-08 06:09:23,530 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1338 of 1338 statements. [2025-03-08 06:09:23,531 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 06:09:23,531 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 06:09:25,145 INFO L134 CoverageAnalysis]: Checked inductivity of 86944 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 86944 trivial. 0 not checked. [2025-03-08 06:09:25,148 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 06:09:25,148 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2115389452] [2025-03-08 06:09:25,148 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2115389452] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 06:09:25,149 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 06:09:25,149 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-08 06:09:25,149 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1011503755] [2025-03-08 06:09:25,149 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 06:09:25,157 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-08 06:09:25,158 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 06:09:25,159 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-08 06:09:25,159 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-08 06:09:25,160 INFO L87 Difference]: Start difference. First operand 2211 states and 3397 transitions. Second operand has 3 states, 3 states have (on average 96.66666666666667) internal successors, (290), 3 states have internal predecessors, (290), 2 states have call successors, (213), 2 states have call predecessors, (213), 2 states have return successors, (211), 2 states have call predecessors, (211), 2 states have call successors, (211) [2025-03-08 06:09:25,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 06:09:25,449 INFO L93 Difference]: Finished difference Result 4417 states and 6815 transitions. [2025-03-08 06:09:25,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-08 06:09:25,450 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 96.66666666666667) internal successors, (290), 3 states have internal predecessors, (290), 2 states have call successors, (213), 2 states have call predecessors, (213), 2 states have return successors, (211), 2 states have call predecessors, (211), 2 states have call successors, (211) Word has length 1338 [2025-03-08 06:09:25,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 06:09:25,484 INFO L225 Difference]: With dead ends: 4417 [2025-03-08 06:09:25,484 INFO L226 Difference]: Without dead ends: 2211 [2025-03-08 06:09:25,505 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 06:09:25,506 INFO L435 NwaCegarLoop]: 3395 mSDtfsCounter, 0 mSDsluCounter, 3385 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 6780 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 06:09:25,507 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 6780 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-08 06:09:25,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2211 states. [2025-03-08 06:09:25,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2211 to 2211. [2025-03-08 06:09:25,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2211 states, 1248 states have (on average 1.2155448717948718) internal successors, (1517), 1377 states have internal predecessors, (1517), 940 states have call successors, (940), 22 states have call predecessors, (940), 22 states have return successors, (939), 839 states have call predecessors, (939), 939 states have call successors, (939) [2025-03-08 06:09:25,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2211 states to 2211 states and 3396 transitions. [2025-03-08 06:09:25,844 INFO L78 Accepts]: Start accepts. Automaton has 2211 states and 3396 transitions. Word has length 1338 [2025-03-08 06:09:25,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 06:09:25,848 INFO L471 AbstractCegarLoop]: Abstraction has 2211 states and 3396 transitions. [2025-03-08 06:09:25,849 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 96.66666666666667) internal successors, (290), 3 states have internal predecessors, (290), 2 states have call successors, (213), 2 states have call predecessors, (213), 2 states have return successors, (211), 2 states have call predecessors, (211), 2 states have call successors, (211) [2025-03-08 06:09:25,849 INFO L276 IsEmpty]: Start isEmpty. Operand 2211 states and 3396 transitions. [2025-03-08 06:09:25,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1347 [2025-03-08 06:09:25,861 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 06:09:25,862 INFO L218 NwaCegarLoop]: trace histogram [209, 209, 209, 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] [2025-03-08 06:09:25,862 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-08 06:09:25,862 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 06:09:25,863 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 06:09:25,863 INFO L85 PathProgramCache]: Analyzing trace with hash 1667942190, now seen corresponding path program 1 times [2025-03-08 06:09:25,863 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 06:09:25,863 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1142899069] [2025-03-08 06:09:25,863 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 06:09:25,864 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 06:09:26,634 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1346 statements into 1 equivalence classes. [2025-03-08 06:09:26,867 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1346 of 1346 statements. [2025-03-08 06:09:26,867 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 06:09:26,867 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 06:09:30,074 INFO L134 CoverageAnalysis]: Checked inductivity of 86947 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 86947 trivial. 0 not checked. [2025-03-08 06:09:30,074 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 06:09:30,074 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1142899069] [2025-03-08 06:09:30,075 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1142899069] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 06:09:30,075 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 06:09:30,075 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-08 06:09:30,075 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [466658147] [2025-03-08 06:09:30,075 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 06:09:30,077 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-08 06:09:30,077 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 06:09:30,078 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-08 06:09:30,078 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-08 06:09:30,079 INFO L87 Difference]: Start difference. First operand 2211 states and 3396 transitions. Second operand has 5 states, 4 states have (on average 73.0) internal successors, (292), 5 states have internal predecessors, (292), 4 states have call successors, (215), 2 states have call predecessors, (215), 2 states have return successors, (213), 3 states have call predecessors, (213), 4 states have call successors, (213) [2025-03-08 06:09:36,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 06:09:36,564 INFO L93 Difference]: Finished difference Result 5271 states and 8088 transitions. [2025-03-08 06:09:36,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-08 06:09:36,565 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 73.0) internal successors, (292), 5 states have internal predecessors, (292), 4 states have call successors, (215), 2 states have call predecessors, (215), 2 states have return successors, (213), 3 states have call predecessors, (213), 4 states have call successors, (213) Word has length 1346 [2025-03-08 06:09:36,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 06:09:36,596 INFO L225 Difference]: With dead ends: 5271 [2025-03-08 06:09:36,597 INFO L226 Difference]: Without dead ends: 3065 [2025-03-08 06:09:36,616 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 06:09:36,619 INFO L435 NwaCegarLoop]: 4629 mSDtfsCounter, 4637 mSDsluCounter, 3208 mSDsCounter, 0 mSdLazyCounter, 4064 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4637 SdHoareTripleChecker+Valid, 7837 SdHoareTripleChecker+Invalid, 4092 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 4064 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2025-03-08 06:09:36,619 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4637 Valid, 7837 Invalid, 4092 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [28 Valid, 4064 Invalid, 0 Unknown, 0 Unchecked, 6.0s Time] [2025-03-08 06:09:36,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3065 states. [2025-03-08 06:09:37,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3065 to 3060. [2025-03-08 06:09:37,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3060 states, 1772 states have (on average 1.2155756207674944) internal successors, (2154), 1901 states have internal predecessors, (2154), 1256 states have call successors, (1256), 32 states have call predecessors, (1256), 31 states have return successors, (1255), 1154 states have call predecessors, (1255), 1255 states have call successors, (1255) [2025-03-08 06:09:37,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3060 states to 3060 states and 4665 transitions. [2025-03-08 06:09:37,087 INFO L78 Accepts]: Start accepts. Automaton has 3060 states and 4665 transitions. Word has length 1346 [2025-03-08 06:09:37,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 06:09:37,089 INFO L471 AbstractCegarLoop]: Abstraction has 3060 states and 4665 transitions. [2025-03-08 06:09:37,089 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 73.0) internal successors, (292), 5 states have internal predecessors, (292), 4 states have call successors, (215), 2 states have call predecessors, (215), 2 states have return successors, (213), 3 states have call predecessors, (213), 4 states have call successors, (213) [2025-03-08 06:09:37,089 INFO L276 IsEmpty]: Start isEmpty. Operand 3060 states and 4665 transitions. [2025-03-08 06:09:37,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1351 [2025-03-08 06:09:37,101 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 06:09:37,102 INFO L218 NwaCegarLoop]: trace histogram [209, 209, 209, 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] [2025-03-08 06:09:37,102 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-08 06:09:37,102 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 06:09:37,103 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 06:09:37,103 INFO L85 PathProgramCache]: Analyzing trace with hash -132086066, now seen corresponding path program 1 times [2025-03-08 06:09:37,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 06:09:37,103 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1768213370] [2025-03-08 06:09:37,103 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 06:09:37,104 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 06:09:37,752 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1350 statements into 1 equivalence classes. [2025-03-08 06:09:37,970 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1350 of 1350 statements. [2025-03-08 06:09:37,974 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 06:09:37,975 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 06:09:39,306 INFO L134 CoverageAnalysis]: Checked inductivity of 86947 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 86947 trivial. 0 not checked. [2025-03-08 06:09:39,307 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 06:09:39,307 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1768213370] [2025-03-08 06:09:39,307 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1768213370] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 06:09:39,307 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 06:09:39,307 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-08 06:09:39,307 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [203637193] [2025-03-08 06:09:39,307 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 06:09:39,309 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-08 06:09:39,309 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 06:09:39,310 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-08 06:09:39,310 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-08 06:09:39,316 INFO L87 Difference]: Start difference. First operand 3060 states and 4665 transitions. Second operand has 5 states, 4 states have (on average 73.5) internal successors, (294), 5 states have internal predecessors, (294), 4 states have call successors, (216), 2 states have call predecessors, (216), 2 states have return successors, (214), 3 states have call predecessors, (214), 4 states have call successors, (214) [2025-03-08 06:09:43,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 06:09:43,486 INFO L93 Difference]: Finished difference Result 5550 states and 8492 transitions. [2025-03-08 06:09:43,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-08 06:09:43,488 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 73.5) internal successors, (294), 5 states have internal predecessors, (294), 4 states have call successors, (216), 2 states have call predecessors, (216), 2 states have return successors, (214), 3 states have call predecessors, (214), 4 states have call successors, (214) Word has length 1350 [2025-03-08 06:09:43,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 06:09:43,516 INFO L225 Difference]: With dead ends: 5550 [2025-03-08 06:09:43,516 INFO L226 Difference]: Without dead ends: 3061 [2025-03-08 06:09:43,532 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 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 06:09:43,533 INFO L435 NwaCegarLoop]: 4622 mSDtfsCounter, 4627 mSDsluCounter, 3203 mSDsCounter, 0 mSdLazyCounter, 4051 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4627 SdHoareTripleChecker+Valid, 7825 SdHoareTripleChecker+Invalid, 4081 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 4051 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2025-03-08 06:09:43,533 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4627 Valid, 7825 Invalid, 4081 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 4051 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2025-03-08 06:09:43,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3061 states. [2025-03-08 06:09:43,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3061 to 3056. [2025-03-08 06:09:43,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3056 states, 1770 states have (on average 1.2146892655367232) internal successors, (2150), 1899 states have internal predecessors, (2150), 1254 states have call successors, (1254), 32 states have call predecessors, (1254), 31 states have return successors, (1253), 1152 states have call predecessors, (1253), 1253 states have call successors, (1253) [2025-03-08 06:09:43,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3056 states to 3056 states and 4657 transitions. [2025-03-08 06:09:43,985 INFO L78 Accepts]: Start accepts. Automaton has 3056 states and 4657 transitions. Word has length 1350 [2025-03-08 06:09:43,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 06:09:43,988 INFO L471 AbstractCegarLoop]: Abstraction has 3056 states and 4657 transitions. [2025-03-08 06:09:43,989 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 73.5) internal successors, (294), 5 states have internal predecessors, (294), 4 states have call successors, (216), 2 states have call predecessors, (216), 2 states have return successors, (214), 3 states have call predecessors, (214), 4 states have call successors, (214) [2025-03-08 06:09:43,989 INFO L276 IsEmpty]: Start isEmpty. Operand 3056 states and 4657 transitions. [2025-03-08 06:09:44,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1352 [2025-03-08 06:09:44,002 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 06:09:44,003 INFO L218 NwaCegarLoop]: trace histogram [209, 209, 209, 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] [2025-03-08 06:09:44,003 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-08 06:09:44,003 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 06:09:44,004 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 06:09:44,004 INFO L85 PathProgramCache]: Analyzing trace with hash -1072515644, now seen corresponding path program 1 times [2025-03-08 06:09:44,005 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 06:09:44,005 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [41755869] [2025-03-08 06:09:44,005 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 06:09:44,005 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 06:09:44,635 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1351 statements into 1 equivalence classes. [2025-03-08 06:09:44,784 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1351 of 1351 statements. [2025-03-08 06:09:44,785 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 06:09:44,785 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 06:09:47,018 INFO L134 CoverageAnalysis]: Checked inductivity of 86947 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 86947 trivial. 0 not checked. [2025-03-08 06:09:47,019 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 06:09:47,019 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [41755869] [2025-03-08 06:09:47,019 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [41755869] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 06:09:47,019 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 06:09:47,019 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-08 06:09:47,020 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [690672410] [2025-03-08 06:09:47,020 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 06:09:47,021 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-08 06:09:47,021 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 06:09:47,021 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-08 06:09:47,022 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-03-08 06:09:47,022 INFO L87 Difference]: Start difference. First operand 3056 states and 4657 transitions. Second operand has 6 states, 6 states have (on average 49.166666666666664) internal successors, (295), 5 states have internal predecessors, (295), 3 states have call successors, (216), 3 states have call predecessors, (216), 2 states have return successors, (214), 3 states have call predecessors, (214), 3 states have call successors, (214) [2025-03-08 06:09:50,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 06:09:50,506 INFO L93 Difference]: Finished difference Result 5446 states and 8327 transitions. [2025-03-08 06:09:50,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-08 06:09:50,507 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 49.166666666666664) internal successors, (295), 5 states have internal predecessors, (295), 3 states have call successors, (216), 3 states have call predecessors, (216), 2 states have return successors, (214), 3 states have call predecessors, (214), 3 states have call successors, (214) Word has length 1351 [2025-03-08 06:09:50,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 06:09:50,545 INFO L225 Difference]: With dead ends: 5446 [2025-03-08 06:09:50,545 INFO L226 Difference]: Without dead ends: 5444 [2025-03-08 06:09:50,548 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2025-03-08 06:09:50,549 INFO L435 NwaCegarLoop]: 3387 mSDtfsCounter, 4150 mSDsluCounter, 9108 mSDsCounter, 0 mSdLazyCounter, 2327 mSolverCounterSat, 883 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4510 SdHoareTripleChecker+Valid, 12495 SdHoareTripleChecker+Invalid, 3210 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 883 IncrementalHoareTripleChecker+Valid, 2327 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2025-03-08 06:09:50,550 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4510 Valid, 12495 Invalid, 3210 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [883 Valid, 2327 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2025-03-08 06:09:50,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5444 states. [2025-03-08 06:09:51,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5444 to 5416. [2025-03-08 06:09:51,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5416 states, 3144 states have (on average 1.2229643765903309) internal successors, (3845), 3397 states have internal predecessors, (3845), 2213 states have call successors, (2213), 58 states have call predecessors, (2213), 58 states have return successors, (2240), 2014 states have call predecessors, (2240), 2211 states have call successors, (2240) [2025-03-08 06:09:51,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5416 states to 5416 states and 8298 transitions. [2025-03-08 06:09:51,569 INFO L78 Accepts]: Start accepts. Automaton has 5416 states and 8298 transitions. Word has length 1351 [2025-03-08 06:09:51,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 06:09:51,575 INFO L471 AbstractCegarLoop]: Abstraction has 5416 states and 8298 transitions. [2025-03-08 06:09:51,576 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 49.166666666666664) internal successors, (295), 5 states have internal predecessors, (295), 3 states have call successors, (216), 3 states have call predecessors, (216), 2 states have return successors, (214), 3 states have call predecessors, (214), 3 states have call successors, (214) [2025-03-08 06:09:51,576 INFO L276 IsEmpty]: Start isEmpty. Operand 5416 states and 8298 transitions. [2025-03-08 06:09:51,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1403 [2025-03-08 06:09:51,637 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 06:09:51,637 INFO L218 NwaCegarLoop]: trace histogram [210, 210, 210, 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] [2025-03-08 06:09:51,637 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-03-08 06:09:51,638 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 06:09:51,638 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 06:09:51,638 INFO L85 PathProgramCache]: Analyzing trace with hash -1331853294, now seen corresponding path program 1 times [2025-03-08 06:09:51,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 06:09:51,639 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [808533597] [2025-03-08 06:09:51,639 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 06:09:51,639 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 06:09:52,207 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1402 statements into 1 equivalence classes. [2025-03-08 06:09:52,326 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1402 of 1402 statements. [2025-03-08 06:09:52,326 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 06:09:52,326 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 06:09:54,252 INFO L134 CoverageAnalysis]: Checked inductivity of 87792 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 87790 trivial. 0 not checked. [2025-03-08 06:09:54,252 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 06:09:54,252 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [808533597] [2025-03-08 06:09:54,252 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [808533597] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 06:09:54,253 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 06:09:54,253 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-08 06:09:54,253 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1399105318] [2025-03-08 06:09:54,253 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 06:09:54,254 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-08 06:09:54,254 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 06:09:54,255 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-08 06:09:54,255 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-08 06:09:54,255 INFO L87 Difference]: Start difference. First operand 5416 states and 8298 transitions. Second operand has 5 states, 4 states have (on average 82.0) internal successors, (328), 5 states have internal predecessors, (328), 4 states have call successors, (221), 2 states have call predecessors, (221), 2 states have return successors, (219), 3 states have call predecessors, (219), 4 states have call successors, (219) [2025-03-08 06:09:57,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 06:09:57,029 INFO L93 Difference]: Finished difference Result 10789 states and 16520 transitions. [2025-03-08 06:09:57,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-08 06:09:57,030 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 82.0) internal successors, (328), 5 states have internal predecessors, (328), 4 states have call successors, (221), 2 states have call predecessors, (221), 2 states have return successors, (219), 3 states have call predecessors, (219), 4 states have call successors, (219) Word has length 1402 [2025-03-08 06:09:57,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 06:09:57,076 INFO L225 Difference]: With dead ends: 10789 [2025-03-08 06:09:57,076 INFO L226 Difference]: Without dead ends: 5944 [2025-03-08 06:09:57,114 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 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 06:09:57,115 INFO L435 NwaCegarLoop]: 3749 mSDtfsCounter, 3757 mSDsluCounter, 2132 mSDsCounter, 0 mSdLazyCounter, 2486 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3757 SdHoareTripleChecker+Valid, 5881 SdHoareTripleChecker+Invalid, 2514 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 2486 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2025-03-08 06:09:57,115 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3757 Valid, 5881 Invalid, 2514 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 2486 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2025-03-08 06:09:57,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5944 states. [2025-03-08 06:09:58,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5944 to 5942. [2025-03-08 06:09:58,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5942 states, 3532 states have (on average 1.2358437146092864) internal successors, (4365), 3785 states have internal predecessors, (4365), 2337 states have call successors, (2337), 72 states have call predecessors, (2337), 72 states have return successors, (2364), 2138 states have call predecessors, (2364), 2335 states have call successors, (2364) [2025-03-08 06:09:58,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5942 states to 5942 states and 9066 transitions. [2025-03-08 06:09:58,486 INFO L78 Accepts]: Start accepts. Automaton has 5942 states and 9066 transitions. Word has length 1402 [2025-03-08 06:09:58,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 06:09:58,487 INFO L471 AbstractCegarLoop]: Abstraction has 5942 states and 9066 transitions. [2025-03-08 06:09:58,488 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 82.0) internal successors, (328), 5 states have internal predecessors, (328), 4 states have call successors, (221), 2 states have call predecessors, (221), 2 states have return successors, (219), 3 states have call predecessors, (219), 4 states have call successors, (219) [2025-03-08 06:09:58,489 INFO L276 IsEmpty]: Start isEmpty. Operand 5942 states and 9066 transitions. [2025-03-08 06:09:58,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1407 [2025-03-08 06:09:58,506 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 06:09:58,506 INFO L218 NwaCegarLoop]: trace histogram [210, 210, 210, 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] [2025-03-08 06:09:58,507 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-03-08 06:09:58,507 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 06:09:58,508 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 06:09:58,508 INFO L85 PathProgramCache]: Analyzing trace with hash 1356112875, now seen corresponding path program 1 times [2025-03-08 06:09:58,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 06:09:58,508 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1134395247] [2025-03-08 06:09:58,508 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 06:09:58,508 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 06:09:59,005 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1406 statements into 1 equivalence classes. [2025-03-08 06:09:59,107 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1406 of 1406 statements. [2025-03-08 06:09:59,107 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 06:09:59,107 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 06:10:00,307 INFO L134 CoverageAnalysis]: Checked inductivity of 87792 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 87784 trivial. 0 not checked. [2025-03-08 06:10:00,307 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 06:10:00,308 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1134395247] [2025-03-08 06:10:00,308 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1134395247] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 06:10:00,308 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 06:10:00,308 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-08 06:10:00,308 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2003127456] [2025-03-08 06:10:00,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 06:10:00,309 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-08 06:10:00,309 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 06:10:00,311 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-08 06:10:00,311 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2025-03-08 06:10:00,312 INFO L87 Difference]: Start difference. First operand 5942 states and 9066 transitions. Second operand has 6 states, 6 states have (on average 55.833333333333336) internal successors, (335), 6 states have internal predecessors, (335), 3 states have call successors, (222), 2 states have call predecessors, (222), 4 states have return successors, (220), 3 states have call predecessors, (220), 3 states have call successors, (220) [2025-03-08 06:10:04,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 06:10:04,367 INFO L93 Difference]: Finished difference Result 11300 states and 17266 transitions. [2025-03-08 06:10:04,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-08 06:10:04,368 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 55.833333333333336) internal successors, (335), 6 states have internal predecessors, (335), 3 states have call successors, (222), 2 states have call predecessors, (222), 4 states have return successors, (220), 3 states have call predecessors, (220), 3 states have call successors, (220) Word has length 1406 [2025-03-08 06:10:04,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 06:10:04,431 INFO L225 Difference]: With dead ends: 11300 [2025-03-08 06:10:04,432 INFO L226 Difference]: Without dead ends: 5929 [2025-03-08 06:10:04,468 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2025-03-08 06:10:04,469 INFO L435 NwaCegarLoop]: 4637 mSDtfsCounter, 5459 mSDsluCounter, 2886 mSDsCounter, 0 mSdLazyCounter, 3516 mSolverCounterSat, 898 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5459 SdHoareTripleChecker+Valid, 7523 SdHoareTripleChecker+Invalid, 4414 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 898 IncrementalHoareTripleChecker+Valid, 3516 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2025-03-08 06:10:04,469 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5459 Valid, 7523 Invalid, 4414 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [898 Valid, 3516 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2025-03-08 06:10:04,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5929 states. [2025-03-08 06:10:05,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5929 to 5926. [2025-03-08 06:10:05,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5926 states, 3522 states have (on average 1.2342419080068143) internal successors, (4347), 3775 states have internal predecessors, (4347), 2331 states have call successors, (2331), 72 states have call predecessors, (2331), 72 states have return successors, (2358), 2132 states have call predecessors, (2358), 2329 states have call successors, (2358) [2025-03-08 06:10:05,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5926 states to 5926 states and 9036 transitions. [2025-03-08 06:10:05,377 INFO L78 Accepts]: Start accepts. Automaton has 5926 states and 9036 transitions. Word has length 1406 [2025-03-08 06:10:05,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 06:10:05,378 INFO L471 AbstractCegarLoop]: Abstraction has 5926 states and 9036 transitions. [2025-03-08 06:10:05,379 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 55.833333333333336) internal successors, (335), 6 states have internal predecessors, (335), 3 states have call successors, (222), 2 states have call predecessors, (222), 4 states have return successors, (220), 3 states have call predecessors, (220), 3 states have call successors, (220) [2025-03-08 06:10:05,379 INFO L276 IsEmpty]: Start isEmpty. Operand 5926 states and 9036 transitions. [2025-03-08 06:10:05,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1408 [2025-03-08 06:10:05,394 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 06:10:05,394 INFO L218 NwaCegarLoop]: trace histogram [210, 210, 210, 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] [2025-03-08 06:10:05,395 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-03-08 06:10:05,395 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 06:10:05,395 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 06:10:05,396 INFO L85 PathProgramCache]: Analyzing trace with hash -1126687316, now seen corresponding path program 1 times [2025-03-08 06:10:05,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 06:10:05,396 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2028521242] [2025-03-08 06:10:05,396 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 06:10:05,396 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 06:10:06,024 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1407 statements into 1 equivalence classes. [2025-03-08 06:10:06,130 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1407 of 1407 statements. [2025-03-08 06:10:06,130 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 06:10:06,130 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 06:10:07,269 INFO L134 CoverageAnalysis]: Checked inductivity of 87792 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 87785 trivial. 0 not checked. [2025-03-08 06:10:07,269 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 06:10:07,270 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2028521242] [2025-03-08 06:10:07,270 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2028521242] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 06:10:07,270 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 06:10:07,270 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-08 06:10:07,270 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1699371285] [2025-03-08 06:10:07,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 06:10:07,271 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-08 06:10:07,271 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 06:10:07,272 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-08 06:10:07,272 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2025-03-08 06:10:07,273 INFO L87 Difference]: Start difference. First operand 5926 states and 9036 transitions. Second operand has 6 states, 6 states have (on average 55.833333333333336) internal successors, (335), 6 states have internal predecessors, (335), 3 states have call successors, (222), 2 states have call predecessors, (222), 4 states have return successors, (220), 3 states have call predecessors, (220), 3 states have call successors, (220) [2025-03-08 06:10:10,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 06:10:10,492 INFO L93 Difference]: Finished difference Result 11277 states and 17214 transitions. [2025-03-08 06:10:10,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-08 06:10:10,492 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 55.833333333333336) internal successors, (335), 6 states have internal predecessors, (335), 3 states have call successors, (222), 2 states have call predecessors, (222), 4 states have return successors, (220), 3 states have call predecessors, (220), 3 states have call successors, (220) Word has length 1407 [2025-03-08 06:10:10,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 06:10:10,537 INFO L225 Difference]: With dead ends: 11277 [2025-03-08 06:10:10,538 INFO L226 Difference]: Without dead ends: 5922 [2025-03-08 06:10:10,573 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 [2025-03-08 06:10:10,574 INFO L435 NwaCegarLoop]: 3735 mSDtfsCounter, 4150 mSDsluCounter, 2119 mSDsCounter, 0 mSdLazyCounter, 2473 mSolverCounterSat, 393 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4150 SdHoareTripleChecker+Valid, 5854 SdHoareTripleChecker+Invalid, 2866 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 393 IncrementalHoareTripleChecker+Valid, 2473 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2025-03-08 06:10:10,574 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4150 Valid, 5854 Invalid, 2866 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [393 Valid, 2473 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2025-03-08 06:10:10,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5922 states. [2025-03-08 06:10:11,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5922 to 5920. [2025-03-08 06:10:11,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5920 states, 3518 states have (on average 1.233371233655486) internal successors, (4339), 3771 states have internal predecessors, (4339), 2329 states have call successors, (2329), 72 states have call predecessors, (2329), 72 states have return successors, (2356), 2130 states have call predecessors, (2356), 2327 states have call successors, (2356) [2025-03-08 06:10:11,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5920 states to 5920 states and 9024 transitions. [2025-03-08 06:10:11,982 INFO L78 Accepts]: Start accepts. Automaton has 5920 states and 9024 transitions. Word has length 1407 [2025-03-08 06:10:11,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 06:10:11,984 INFO L471 AbstractCegarLoop]: Abstraction has 5920 states and 9024 transitions. [2025-03-08 06:10:11,984 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 55.833333333333336) internal successors, (335), 6 states have internal predecessors, (335), 3 states have call successors, (222), 2 states have call predecessors, (222), 4 states have return successors, (220), 3 states have call predecessors, (220), 3 states have call successors, (220) [2025-03-08 06:10:11,985 INFO L276 IsEmpty]: Start isEmpty. Operand 5920 states and 9024 transitions. [2025-03-08 06:10:12,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1412 [2025-03-08 06:10:12,012 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 06:10:12,013 INFO L218 NwaCegarLoop]: trace histogram [210, 210, 210, 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] [2025-03-08 06:10:12,013 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-03-08 06:10:12,013 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 06:10:12,014 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 06:10:12,015 INFO L85 PathProgramCache]: Analyzing trace with hash -86331380, now seen corresponding path program 1 times [2025-03-08 06:10:12,015 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 06:10:12,015 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1557848103] [2025-03-08 06:10:12,015 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 06:10:12,015 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 06:10:12,499 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1411 statements into 1 equivalence classes. [2025-03-08 06:10:12,616 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1411 of 1411 statements. [2025-03-08 06:10:12,616 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 06:10:12,616 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 06:10:13,693 INFO L134 CoverageAnalysis]: Checked inductivity of 87790 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 87784 trivial. 0 not checked. [2025-03-08 06:10:13,693 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 06:10:13,693 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1557848103] [2025-03-08 06:10:13,693 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1557848103] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 06:10:13,693 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 06:10:13,694 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-08 06:10:13,694 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [734905399] [2025-03-08 06:10:13,694 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 06:10:13,695 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-08 06:10:13,695 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 06:10:13,696 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-08 06:10:13,696 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2025-03-08 06:10:13,696 INFO L87 Difference]: Start difference. First operand 5920 states and 9024 transitions. Second operand has 6 states, 6 states have (on average 56.333333333333336) internal successors, (338), 6 states have internal predecessors, (338), 4 states have call successors, (223), 2 states have call predecessors, (223), 4 states have return successors, (221), 4 states have call predecessors, (221), 4 states have call successors, (221) [2025-03-08 06:10:18,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 06:10:18,552 INFO L93 Difference]: Finished difference Result 11268 states and 17196 transitions. [2025-03-08 06:10:18,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-08 06:10:18,553 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 56.333333333333336) internal successors, (338), 6 states have internal predecessors, (338), 4 states have call successors, (223), 2 states have call predecessors, (223), 4 states have return successors, (221), 4 states have call predecessors, (221), 4 states have call successors, (221) Word has length 1411 [2025-03-08 06:10:18,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 06:10:18,607 INFO L225 Difference]: With dead ends: 11268 [2025-03-08 06:10:18,607 INFO L226 Difference]: Without dead ends: 5919 [2025-03-08 06:10:18,645 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2025-03-08 06:10:18,647 INFO L435 NwaCegarLoop]: 4633 mSDtfsCounter, 6756 mSDsluCounter, 2088 mSDsCounter, 0 mSdLazyCounter, 2629 mSolverCounterSat, 2569 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6756 SdHoareTripleChecker+Valid, 6721 SdHoareTripleChecker+Invalid, 5198 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2569 IncrementalHoareTripleChecker+Valid, 2629 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2025-03-08 06:10:18,648 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6756 Valid, 6721 Invalid, 5198 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2569 Valid, 2629 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2025-03-08 06:10:18,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5919 states.