./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/combinations/Problem05_label45+token_ring.13.cil-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 798a7b37 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/combinations/Problem05_label45+token_ring.13.cil-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 d874363f5f49f36a9a30d2c3cc29fd064d32abc557b85cad7937ddf3d715286c --- Real Ultimate output --- This is Ultimate 0.3.0-?-798a7b3-m [2025-03-03 15:43:37,927 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-03 15:43:37,979 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-03-03 15:43:37,983 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-03 15:43:37,983 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-03 15:43:37,997 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-03 15:43:37,998 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-03 15:43:37,998 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-03 15:43:37,998 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-03 15:43:37,998 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-03 15:43:37,998 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-03 15:43:37,998 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-03 15:43:37,999 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-03 15:43:37,999 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-03 15:43:37,999 INFO L153 SettingsManager]: * Use SBE=true [2025-03-03 15:43:37,999 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-03 15:43:37,999 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-03 15:43:37,999 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-03 15:43:37,999 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-03 15:43:37,999 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-03 15:43:37,999 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-03 15:43:37,999 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-03 15:43:37,999 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-03 15:43:37,999 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-03 15:43:37,999 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-03 15:43:37,999 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-03 15:43:37,999 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-03 15:43:37,999 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-03 15:43:37,999 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-03 15:43:38,000 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-03 15:43:38,000 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-03 15:43:38,000 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-03 15:43:38,000 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-03 15:43:38,000 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-03 15:43:38,000 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-03 15:43:38,000 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-03 15:43:38,000 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-03 15:43:38,000 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-03 15:43:38,000 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-03 15:43:38,000 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-03 15:43:38,000 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-03 15:43:38,000 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-03 15:43:38,000 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-03 15:43:38,000 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 -> d874363f5f49f36a9a30d2c3cc29fd064d32abc557b85cad7937ddf3d715286c [2025-03-03 15:43:38,216 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-03 15:43:38,223 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-03 15:43:38,225 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-03 15:43:38,226 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-03 15:43:38,226 INFO L274 PluginConnector]: CDTParser initialized [2025-03-03 15:43:38,227 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/Problem05_label45+token_ring.13.cil-1.c [2025-03-03 15:43:39,375 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/666ecd72f/8c5ed3982ab14de3b213000803ce1929/FLAG9feddba6c [2025-03-03 15:43:39,989 INFO L384 CDTParser]: Found 1 translation units. [2025-03-03 15:43:39,991 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label45+token_ring.13.cil-1.c [2025-03-03 15:43:40,035 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/666ecd72f/8c5ed3982ab14de3b213000803ce1929/FLAG9feddba6c [2025-03-03 15:43:40,441 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/666ecd72f/8c5ed3982ab14de3b213000803ce1929 [2025-03-03 15:43:40,442 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-03 15:43:40,443 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-03 15:43:40,444 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-03 15:43:40,444 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-03 15:43:40,447 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-03 15:43:40,447 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.03 03:43:40" (1/1) ... [2025-03-03 15:43:40,448 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5989a0dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 03:43:40, skipping insertion in model container [2025-03-03 15:43:40,448 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.03 03:43:40" (1/1) ... [2025-03-03 15:43:40,568 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-03 15:43:41,629 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/combinations/Problem05_label45+token_ring.13.cil-1.c[380323,380336] [2025-03-03 15:43:41,653 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/combinations/Problem05_label45+token_ring.13.cil-1.c[383339,383352] [2025-03-03 15:43:41,927 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-03 15:43:41,936 INFO L200 MainTranslator]: Completed pre-run [2025-03-03 15:43:42,474 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/combinations/Problem05_label45+token_ring.13.cil-1.c[380323,380336] [2025-03-03 15:43:42,478 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/combinations/Problem05_label45+token_ring.13.cil-1.c[383339,383352] [2025-03-03 15:43:42,493 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-03 15:43:42,559 INFO L204 MainTranslator]: Completed translation [2025-03-03 15:43:42,559 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 03:43:42 WrapperNode [2025-03-03 15:43:42,560 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-03 15:43:42,561 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-03 15:43:42,561 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-03 15:43:42,561 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-03 15:43:42,566 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 03:43:42" (1/1) ... [2025-03-03 15:43:42,630 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 03:43:42" (1/1) ... [2025-03-03 15:43:42,905 INFO L138 Inliner]: procedures = 70, calls = 81, calls flagged for inlining = 47, calls inlined = 47, statements flattened = 13248 [2025-03-03 15:43:42,905 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-03 15:43:42,906 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-03 15:43:42,906 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-03 15:43:42,906 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-03 15:43:42,913 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 03:43:42" (1/1) ... [2025-03-03 15:43:42,913 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 03:43:42" (1/1) ... [2025-03-03 15:43:43,038 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 03:43:42" (1/1) ... [2025-03-03 15:43:43,135 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2025-03-03 15:43:43,137 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 03:43:42" (1/1) ... [2025-03-03 15:43:43,137 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 03:43:42" (1/1) ... [2025-03-03 15:43:43,352 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 03:43:42" (1/1) ... [2025-03-03 15:43:43,373 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 03:43:42" (1/1) ... [2025-03-03 15:43:43,397 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 03:43:42" (1/1) ... [2025-03-03 15:43:43,415 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 03:43:42" (1/1) ... [2025-03-03 15:43:43,470 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-03 15:43:43,472 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-03 15:43:43,472 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-03 15:43:43,472 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-03 15:43:43,473 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 03:43:42" (1/1) ... [2025-03-03 15:43:43,478 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-03 15:43:43,488 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-03 15:43:43,502 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) [2025-03-03 15:43:43,508 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 [2025-03-03 15:43:43,523 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-03 15:43:43,523 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2025-03-03 15:43:43,523 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2025-03-03 15:43:43,523 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2025-03-03 15:43:43,524 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2025-03-03 15:43:43,524 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2025-03-03 15:43:43,524 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2025-03-03 15:43:43,524 INFO L130 BoogieDeclarations]: Found specification of procedure error [2025-03-03 15:43:43,524 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2025-03-03 15:43:43,524 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2025-03-03 15:43:43,524 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2025-03-03 15:43:43,524 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2025-03-03 15:43:43,524 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2025-03-03 15:43:43,524 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2025-03-03 15:43:43,524 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2025-03-03 15:43:43,524 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-03 15:43:43,524 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-03 15:43:43,524 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-03 15:43:43,651 INFO L256 CfgBuilder]: Building ICFG [2025-03-03 15:43:43,653 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-03 15:43:49,789 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L4481: havoc calculate_output3_#t~ret16#1; [2025-03-03 15:43:49,790 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L7469: havoc calculate_output5_#t~ret18#1; [2025-03-03 15:43:49,790 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L3033: havoc calculate_output2_#t~ret15#1; [2025-03-03 15:43:49,790 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L10440: havoc calculate_output7_#t~ret20#1; [2025-03-03 15:43:49,791 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L8922: havoc calculate_output6_#t~ret19#1; [2025-03-03 15:43:49,791 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L6035: havoc calculate_output4_#t~ret17#1; [2025-03-03 15:43:49,791 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L1543: havoc calculate_output_#t~ret14#1; [2025-03-03 15:43:50,013 INFO L? ?]: Removed 1765 outVars from TransFormulas that were not future-live. [2025-03-03 15:43:50,013 INFO L307 CfgBuilder]: Performing block encoding [2025-03-03 15:43:50,068 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-03 15:43:50,069 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-03 15:43:50,070 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 03.03 03:43:50 BoogieIcfgContainer [2025-03-03 15:43:50,070 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-03 15:43:50,071 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-03 15:43:50,072 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-03 15:43:50,075 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-03 15:43:50,076 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.03 03:43:40" (1/3) ... [2025-03-03 15:43:50,077 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@557e8599 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.03 03:43:50, skipping insertion in model container [2025-03-03 15:43:50,077 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 03:43:42" (2/3) ... [2025-03-03 15:43:50,077 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@557e8599 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.03 03:43:50, skipping insertion in model container [2025-03-03 15:43:50,077 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 03.03 03:43:50" (3/3) ... [2025-03-03 15:43:50,078 INFO L128 eAbstractionObserver]: Analyzing ICFG Problem05_label45+token_ring.13.cil-1.c [2025-03-03 15:43:50,091 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-03 15:43:50,094 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG Problem05_label45+token_ring.13.cil-1.c that has 8 procedures, 2626 locations, 1 initial locations, 17 loop locations, and 2 error locations. [2025-03-03 15:43:50,193 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-03 15:43:50,204 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;@3f2a95ce, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-03 15:43:50,205 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2025-03-03 15:43:50,218 INFO L276 IsEmpty]: Start isEmpty. Operand has 2626 states, 2587 states have (on average 1.826439891766525) internal successors, (4725), 2592 states have internal predecessors, (4725), 29 states have call successors, (29), 7 states have call predecessors, (29), 7 states have return successors, (29), 28 states have call predecessors, (29), 29 states have call successors, (29) [2025-03-03 15:43:50,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2025-03-03 15:43:50,237 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 15:43:50,238 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 15:43:50,238 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 15:43:50,303 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 15:43:50,304 INFO L85 PathProgramCache]: Analyzing trace with hash -1841650084, now seen corresponding path program 1 times [2025-03-03 15:43:50,313 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 15:43:50,314 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [685575169] [2025-03-03 15:43:50,314 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 15:43:50,314 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 15:43:50,393 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 190 statements into 1 equivalence classes. [2025-03-03 15:43:50,428 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 190 of 190 statements. [2025-03-03 15:43:50,431 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 15:43:50,431 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 15:43:50,874 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-03 15:43:50,875 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 15:43:50,875 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [685575169] [2025-03-03 15:43:50,876 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [685575169] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 15:43:50,876 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 15:43:50,876 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-03 15:43:50,878 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1046923093] [2025-03-03 15:43:50,878 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 15:43:50,881 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-03 15:43:50,882 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 15:43:50,898 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-03 15:43:50,899 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-03 15:43:50,907 INFO L87 Difference]: Start difference. First operand has 2626 states, 2587 states have (on average 1.826439891766525) internal successors, (4725), 2592 states have internal predecessors, (4725), 29 states have call successors, (29), 7 states have call predecessors, (29), 7 states have return successors, (29), 28 states have call predecessors, (29), 29 states have call successors, (29) Second operand has 5 states, 5 states have (on average 35.8) internal successors, (179), 4 states have internal predecessors, (179), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-03-03 15:43:51,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 15:43:51,673 INFO L93 Difference]: Finished difference Result 5701 states and 10295 transitions. [2025-03-03 15:43:51,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-03 15:43:51,675 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 35.8) internal successors, (179), 4 states have internal predecessors, (179), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 190 [2025-03-03 15:43:51,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 15:43:51,707 INFO L225 Difference]: With dead ends: 5701 [2025-03-03 15:43:51,708 INFO L226 Difference]: Without dead ends: 3026 [2025-03-03 15:43:51,721 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2025-03-03 15:43:51,723 INFO L435 NwaCegarLoop]: 4561 mSDtfsCounter, 5303 mSDsluCounter, 9438 mSDsCounter, 0 mSdLazyCounter, 678 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5324 SdHoareTripleChecker+Valid, 13999 SdHoareTripleChecker+Invalid, 740 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 678 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2025-03-03 15:43:51,724 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5324 Valid, 13999 Invalid, 740 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 678 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2025-03-03 15:43:51,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3026 states. [2025-03-03 15:43:51,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3026 to 2993. [2025-03-03 15:43:51,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2993 states, 2927 states have (on average 1.7810044414075845) internal successors, (5213), 2931 states have internal predecessors, (5213), 51 states have call successors, (51), 13 states have call predecessors, (51), 13 states have return successors, (50), 49 states have call predecessors, (50), 49 states have call successors, (50) [2025-03-03 15:43:51,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2993 states to 2993 states and 5314 transitions. [2025-03-03 15:43:51,879 INFO L78 Accepts]: Start accepts. Automaton has 2993 states and 5314 transitions. Word has length 190 [2025-03-03 15:43:51,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 15:43:51,880 INFO L471 AbstractCegarLoop]: Abstraction has 2993 states and 5314 transitions. [2025-03-03 15:43:51,880 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 35.8) internal successors, (179), 4 states have internal predecessors, (179), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-03-03 15:43:51,880 INFO L276 IsEmpty]: Start isEmpty. Operand 2993 states and 5314 transitions. [2025-03-03 15:43:51,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2025-03-03 15:43:51,885 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 15:43:51,885 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 15:43:51,885 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-03 15:43:51,886 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 15:43:51,886 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 15:43:51,886 INFO L85 PathProgramCache]: Analyzing trace with hash -617679654, now seen corresponding path program 1 times [2025-03-03 15:43:51,886 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 15:43:51,886 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [672019067] [2025-03-03 15:43:51,886 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 15:43:51,887 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 15:43:51,902 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 190 statements into 1 equivalence classes. [2025-03-03 15:43:51,910 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 190 of 190 statements. [2025-03-03 15:43:51,911 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 15:43:51,911 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 15:43:52,164 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-03 15:43:52,165 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 15:43:52,165 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [672019067] [2025-03-03 15:43:52,165 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [672019067] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 15:43:52,166 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 15:43:52,166 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-03 15:43:52,166 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [106244310] [2025-03-03 15:43:52,166 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 15:43:52,167 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-03 15:43:52,168 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 15:43:52,169 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-03 15:43:52,169 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-03 15:43:52,169 INFO L87 Difference]: Start difference. First operand 2993 states and 5314 transitions. Second operand has 6 states, 6 states have (on average 29.833333333333332) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-03-03 15:43:53,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 15:43:53,224 INFO L93 Difference]: Finished difference Result 4390 states and 7525 transitions. [2025-03-03 15:43:53,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-03 15:43:53,225 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 29.833333333333332) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 190 [2025-03-03 15:43:53,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 15:43:53,255 INFO L225 Difference]: With dead ends: 4390 [2025-03-03 15:43:53,258 INFO L226 Difference]: Without dead ends: 3539 [2025-03-03 15:43:53,266 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2025-03-03 15:43:53,267 INFO L435 NwaCegarLoop]: 4866 mSDtfsCounter, 5244 mSDsluCounter, 14692 mSDsCounter, 0 mSdLazyCounter, 1163 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5265 SdHoareTripleChecker+Valid, 19558 SdHoareTripleChecker+Invalid, 1198 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 1163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2025-03-03 15:43:53,268 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5265 Valid, 19558 Invalid, 1198 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 1163 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2025-03-03 15:43:53,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3539 states. [2025-03-03 15:43:53,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3539 to 3398. [2025-03-03 15:43:53,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3398 states, 3303 states have (on average 1.7523463518013926) internal successors, (5788), 3308 states have internal predecessors, (5788), 73 states have call successors, (73), 19 states have call predecessors, (73), 20 states have return successors, (75), 72 states have call predecessors, (75), 71 states have call successors, (75) [2025-03-03 15:43:53,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3398 states to 3398 states and 5936 transitions. [2025-03-03 15:43:53,430 INFO L78 Accepts]: Start accepts. Automaton has 3398 states and 5936 transitions. Word has length 190 [2025-03-03 15:43:53,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 15:43:53,430 INFO L471 AbstractCegarLoop]: Abstraction has 3398 states and 5936 transitions. [2025-03-03 15:43:53,430 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 29.833333333333332) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-03-03 15:43:53,431 INFO L276 IsEmpty]: Start isEmpty. Operand 3398 states and 5936 transitions. [2025-03-03 15:43:53,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2025-03-03 15:43:53,433 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 15:43:53,433 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 15:43:53,433 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-03 15:43:53,434 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 15:43:53,434 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 15:43:53,434 INFO L85 PathProgramCache]: Analyzing trace with hash -1479983815, now seen corresponding path program 1 times [2025-03-03 15:43:53,434 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 15:43:53,434 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1748532704] [2025-03-03 15:43:53,434 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 15:43:53,435 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 15:43:53,451 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 190 statements into 1 equivalence classes. [2025-03-03 15:43:53,461 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 190 of 190 statements. [2025-03-03 15:43:53,461 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 15:43:53,461 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 15:43:53,631 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-03 15:43:53,631 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 15:43:53,631 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1748532704] [2025-03-03 15:43:53,632 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1748532704] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 15:43:53,632 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 15:43:53,632 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-03 15:43:53,632 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1524380454] [2025-03-03 15:43:53,632 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 15:43:53,632 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-03 15:43:53,632 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 15:43:53,633 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-03 15:43:53,633 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-03 15:43:53,633 INFO L87 Difference]: Start difference. First operand 3398 states and 5936 transitions. Second operand has 6 states, 6 states have (on average 29.833333333333332) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-03-03 15:43:54,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 15:43:54,395 INFO L93 Difference]: Finished difference Result 5678 states and 9536 transitions. [2025-03-03 15:43:54,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-03 15:43:54,395 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 29.833333333333332) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 190 [2025-03-03 15:43:54,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 15:43:54,412 INFO L225 Difference]: With dead ends: 5678 [2025-03-03 15:43:54,413 INFO L226 Difference]: Without dead ends: 4422 [2025-03-03 15:43:54,417 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2025-03-03 15:43:54,418 INFO L435 NwaCegarLoop]: 4862 mSDtfsCounter, 5239 mSDsluCounter, 14680 mSDsCounter, 0 mSdLazyCounter, 1163 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5260 SdHoareTripleChecker+Valid, 19542 SdHoareTripleChecker+Invalid, 1198 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 1163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2025-03-03 15:43:54,418 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5260 Valid, 19542 Invalid, 1198 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 1163 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2025-03-03 15:43:54,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4422 states. [2025-03-03 15:43:54,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4422 to 4259. [2025-03-03 15:43:54,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4259 states, 4104 states have (on average 1.7136939571150098) internal successors, (7033), 4113 states have internal predecessors, (7033), 117 states have call successors, (117), 31 states have call predecessors, (117), 36 states have return successors, (131), 118 states have call predecessors, (131), 115 states have call successors, (131) [2025-03-03 15:43:54,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4259 states to 4259 states and 7281 transitions. [2025-03-03 15:43:54,532 INFO L78 Accepts]: Start accepts. Automaton has 4259 states and 7281 transitions. Word has length 190 [2025-03-03 15:43:54,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 15:43:54,532 INFO L471 AbstractCegarLoop]: Abstraction has 4259 states and 7281 transitions. [2025-03-03 15:43:54,533 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 29.833333333333332) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-03-03 15:43:54,533 INFO L276 IsEmpty]: Start isEmpty. Operand 4259 states and 7281 transitions. [2025-03-03 15:43:54,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2025-03-03 15:43:54,536 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 15:43:54,536 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 15:43:54,536 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-03 15:43:54,536 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 15:43:54,537 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 15:43:54,537 INFO L85 PathProgramCache]: Analyzing trace with hash -1230705414, now seen corresponding path program 1 times [2025-03-03 15:43:54,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 15:43:54,537 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [378256238] [2025-03-03 15:43:54,537 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 15:43:54,537 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 15:43:54,553 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 190 statements into 1 equivalence classes. [2025-03-03 15:43:54,559 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 190 of 190 statements. [2025-03-03 15:43:54,560 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 15:43:54,560 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 15:43:54,731 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-03 15:43:54,731 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 15:43:54,731 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [378256238] [2025-03-03 15:43:54,731 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [378256238] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 15:43:54,732 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 15:43:54,732 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-03 15:43:54,732 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1493305412] [2025-03-03 15:43:54,732 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 15:43:54,732 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-03 15:43:54,732 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 15:43:54,733 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-03 15:43:54,733 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-03 15:43:54,733 INFO L87 Difference]: Start difference. First operand 4259 states and 7281 transitions. Second operand has 6 states, 6 states have (on average 29.833333333333332) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-03-03 15:43:55,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 15:43:55,482 INFO L93 Difference]: Finished difference Result 8453 states and 13959 transitions. [2025-03-03 15:43:55,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-03 15:43:55,483 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 29.833333333333332) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 190 [2025-03-03 15:43:55,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 15:43:55,506 INFO L225 Difference]: With dead ends: 8453 [2025-03-03 15:43:55,507 INFO L226 Difference]: Without dead ends: 6336 [2025-03-03 15:43:55,514 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2025-03-03 15:43:55,515 INFO L435 NwaCegarLoop]: 4859 mSDtfsCounter, 5234 mSDsluCounter, 14671 mSDsCounter, 0 mSdLazyCounter, 1163 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5255 SdHoareTripleChecker+Valid, 19530 SdHoareTripleChecker+Invalid, 1198 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 1163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2025-03-03 15:43:55,515 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5255 Valid, 19530 Invalid, 1198 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 1163 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2025-03-03 15:43:55,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6336 states. [2025-03-03 15:43:55,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6336 to 6128. [2025-03-03 15:43:55,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6128 states, 5847 states have (on average 1.6755601162989566) internal successors, (9797), 5870 states have internal predecessors, (9797), 205 states have call successors, (205), 55 states have call predecessors, (205), 74 states have return successors, (267), 210 states have call predecessors, (267), 203 states have call successors, (267) [2025-03-03 15:43:55,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6128 states to 6128 states and 10269 transitions. [2025-03-03 15:43:55,667 INFO L78 Accepts]: Start accepts. Automaton has 6128 states and 10269 transitions. Word has length 190 [2025-03-03 15:43:55,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 15:43:55,667 INFO L471 AbstractCegarLoop]: Abstraction has 6128 states and 10269 transitions. [2025-03-03 15:43:55,667 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 29.833333333333332) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-03-03 15:43:55,668 INFO L276 IsEmpty]: Start isEmpty. Operand 6128 states and 10269 transitions. [2025-03-03 15:43:55,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2025-03-03 15:43:55,671 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 15:43:55,671 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 15:43:55,671 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-03 15:43:55,672 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 15:43:55,672 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 15:43:55,672 INFO L85 PathProgramCache]: Analyzing trace with hash -945569511, now seen corresponding path program 1 times [2025-03-03 15:43:55,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 15:43:55,672 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1151350163] [2025-03-03 15:43:55,672 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 15:43:55,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 15:43:55,684 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 190 statements into 1 equivalence classes. [2025-03-03 15:43:55,691 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 190 of 190 statements. [2025-03-03 15:43:55,692 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 15:43:55,692 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 15:43:55,829 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-03 15:43:55,829 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 15:43:55,830 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1151350163] [2025-03-03 15:43:55,830 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1151350163] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 15:43:55,830 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 15:43:55,830 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-03 15:43:55,830 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1494670831] [2025-03-03 15:43:55,830 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 15:43:55,830 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-03 15:43:55,830 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 15:43:55,832 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-03 15:43:55,832 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-03 15:43:55,832 INFO L87 Difference]: Start difference. First operand 6128 states and 10269 transitions. Second operand has 6 states, 6 states have (on average 29.833333333333332) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-03-03 15:43:56,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 15:43:56,726 INFO L93 Difference]: Finished difference Result 14572 states and 23985 transitions. [2025-03-03 15:43:56,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-03 15:43:56,727 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 29.833333333333332) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 190 [2025-03-03 15:43:56,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 15:43:56,780 INFO L225 Difference]: With dead ends: 14572 [2025-03-03 15:43:56,781 INFO L226 Difference]: Without dead ends: 10586 [2025-03-03 15:43:56,796 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2025-03-03 15:43:56,798 INFO L435 NwaCegarLoop]: 4856 mSDtfsCounter, 5229 mSDsluCounter, 14662 mSDsCounter, 0 mSdLazyCounter, 1163 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5250 SdHoareTripleChecker+Valid, 19518 SdHoareTripleChecker+Invalid, 1198 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 1163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2025-03-03 15:43:56,798 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5250 Valid, 19518 Invalid, 1198 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 1163 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2025-03-03 15:43:56,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10586 states. [2025-03-03 15:43:57,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10586 to 10289. [2025-03-03 15:43:57,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10289 states, 9738 states have (on average 1.6546518792359828) internal successors, (16113), 9807 states have internal predecessors, (16113), 381 states have call successors, (381), 103 states have call predecessors, (381), 168 states have return successors, (635), 394 states have call predecessors, (635), 379 states have call successors, (635) [2025-03-03 15:43:57,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10289 states to 10289 states and 17129 transitions. [2025-03-03 15:43:57,104 INFO L78 Accepts]: Start accepts. Automaton has 10289 states and 17129 transitions. Word has length 190 [2025-03-03 15:43:57,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 15:43:57,105 INFO L471 AbstractCegarLoop]: Abstraction has 10289 states and 17129 transitions. [2025-03-03 15:43:57,106 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 29.833333333333332) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-03-03 15:43:57,106 INFO L276 IsEmpty]: Start isEmpty. Operand 10289 states and 17129 transitions. [2025-03-03 15:43:57,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2025-03-03 15:43:57,113 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 15:43:57,113 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 15:43:57,113 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-03-03 15:43:57,114 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 15:43:57,114 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 15:43:57,114 INFO L85 PathProgramCache]: Analyzing trace with hash -243634918, now seen corresponding path program 1 times [2025-03-03 15:43:57,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 15:43:57,114 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1481340118] [2025-03-03 15:43:57,114 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 15:43:57,114 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 15:43:57,125 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 190 statements into 1 equivalence classes. [2025-03-03 15:43:57,129 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 190 of 190 statements. [2025-03-03 15:43:57,130 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 15:43:57,130 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 15:43:57,363 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-03 15:43:57,363 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 15:43:57,364 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1481340118] [2025-03-03 15:43:57,364 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1481340118] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 15:43:57,364 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 15:43:57,364 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-03 15:43:57,364 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1894416968] [2025-03-03 15:43:57,364 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 15:43:57,364 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-03 15:43:57,365 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 15:43:57,365 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-03 15:43:57,366 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-03 15:43:57,366 INFO L87 Difference]: Start difference. First operand 10289 states and 17129 transitions. Second operand has 6 states, 6 states have (on average 29.833333333333332) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-03-03 15:43:58,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 15:43:58,439 INFO L93 Difference]: Finished difference Result 28443 states and 47555 transitions. [2025-03-03 15:43:58,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-03 15:43:58,439 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 29.833333333333332) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 190 [2025-03-03 15:43:58,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 15:43:58,500 INFO L225 Difference]: With dead ends: 28443 [2025-03-03 15:43:58,500 INFO L226 Difference]: Without dead ends: 20296 [2025-03-03 15:43:58,522 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2025-03-03 15:43:58,523 INFO L435 NwaCegarLoop]: 4853 mSDtfsCounter, 5224 mSDsluCounter, 14653 mSDsCounter, 0 mSdLazyCounter, 1163 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5245 SdHoareTripleChecker+Valid, 19506 SdHoareTripleChecker+Invalid, 1198 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 1163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2025-03-03 15:43:58,523 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5245 Valid, 19506 Invalid, 1198 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 1163 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2025-03-03 15:43:58,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20296 states. [2025-03-03 15:43:58,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20296 to 19826. [2025-03-03 15:43:59,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19826 states, 18681 states have (on average 1.6597077244258873) internal successors, (31005), 18896 states have internal predecessors, (31005), 733 states have call successors, (733), 199 states have call predecessors, (733), 410 states have return successors, (1755), 762 states have call predecessors, (1755), 731 states have call successors, (1755) [2025-03-03 15:43:59,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19826 states to 19826 states and 33493 transitions. [2025-03-03 15:43:59,058 INFO L78 Accepts]: Start accepts. Automaton has 19826 states and 33493 transitions. Word has length 190 [2025-03-03 15:43:59,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 15:43:59,059 INFO L471 AbstractCegarLoop]: Abstraction has 19826 states and 33493 transitions. [2025-03-03 15:43:59,059 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 29.833333333333332) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-03-03 15:43:59,059 INFO L276 IsEmpty]: Start isEmpty. Operand 19826 states and 33493 transitions. [2025-03-03 15:43:59,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2025-03-03 15:43:59,067 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 15:43:59,067 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 15:43:59,067 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-03-03 15:43:59,068 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 15:43:59,068 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 15:43:59,068 INFO L85 PathProgramCache]: Analyzing trace with hash -636633863, now seen corresponding path program 1 times [2025-03-03 15:43:59,068 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 15:43:59,068 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1474362938] [2025-03-03 15:43:59,068 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 15:43:59,069 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 15:43:59,080 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 190 statements into 1 equivalence classes. [2025-03-03 15:43:59,085 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 190 of 190 statements. [2025-03-03 15:43:59,085 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 15:43:59,085 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 15:43:59,218 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-03 15:43:59,219 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 15:43:59,219 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1474362938] [2025-03-03 15:43:59,219 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1474362938] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 15:43:59,219 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 15:43:59,219 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-03 15:43:59,219 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [697935029] [2025-03-03 15:43:59,219 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 15:43:59,219 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-03 15:43:59,220 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 15:43:59,220 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-03 15:43:59,220 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-03 15:43:59,220 INFO L87 Difference]: Start difference. First operand 19826 states and 33493 transitions. Second operand has 5 states, 5 states have (on average 35.8) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-03-03 15:44:00,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 15:44:00,228 INFO L93 Difference]: Finished difference Result 42900 states and 74128 transitions. [2025-03-03 15:44:00,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-03 15:44:00,230 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 35.8) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 190 [2025-03-03 15:44:00,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 15:44:00,323 INFO L225 Difference]: With dead ends: 42900 [2025-03-03 15:44:00,323 INFO L226 Difference]: Without dead ends: 25216 [2025-03-03 15:44:00,381 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2025-03-03 15:44:00,382 INFO L435 NwaCegarLoop]: 4468 mSDtfsCounter, 4865 mSDsluCounter, 8767 mSDsCounter, 0 mSdLazyCounter, 476 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4886 SdHoareTripleChecker+Valid, 13235 SdHoareTripleChecker+Invalid, 512 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 476 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-03-03 15:44:00,383 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4886 Valid, 13235 Invalid, 512 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 476 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-03-03 15:44:00,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25216 states. [2025-03-03 15:44:00,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25216 to 19826. [2025-03-03 15:44:00,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19826 states, 18681 states have (on average 1.6579412237032278) internal successors, (30972), 18896 states have internal predecessors, (30972), 733 states have call successors, (733), 199 states have call predecessors, (733), 410 states have return successors, (1755), 762 states have call predecessors, (1755), 731 states have call successors, (1755) [2025-03-03 15:44:01,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19826 states to 19826 states and 33460 transitions. [2025-03-03 15:44:01,009 INFO L78 Accepts]: Start accepts. Automaton has 19826 states and 33460 transitions. Word has length 190 [2025-03-03 15:44:01,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 15:44:01,010 INFO L471 AbstractCegarLoop]: Abstraction has 19826 states and 33460 transitions. [2025-03-03 15:44:01,010 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 35.8) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-03-03 15:44:01,010 INFO L276 IsEmpty]: Start isEmpty. Operand 19826 states and 33460 transitions. [2025-03-03 15:44:01,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2025-03-03 15:44:01,018 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 15:44:01,018 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 15:44:01,018 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-03-03 15:44:01,019 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 15:44:01,019 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 15:44:01,019 INFO L85 PathProgramCache]: Analyzing trace with hash 1844540730, now seen corresponding path program 1 times [2025-03-03 15:44:01,019 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 15:44:01,019 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1618442261] [2025-03-03 15:44:01,019 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 15:44:01,020 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 15:44:01,029 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 190 statements into 1 equivalence classes. [2025-03-03 15:44:01,035 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 190 of 190 statements. [2025-03-03 15:44:01,035 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 15:44:01,035 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 15:44:01,131 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-03 15:44:01,131 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 15:44:01,131 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1618442261] [2025-03-03 15:44:01,131 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1618442261] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 15:44:01,131 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 15:44:01,132 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-03 15:44:01,132 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1450205350] [2025-03-03 15:44:01,132 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 15:44:01,132 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-03 15:44:01,132 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 15:44:01,133 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-03 15:44:01,133 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-03 15:44:01,134 INFO L87 Difference]: Start difference. First operand 19826 states and 33460 transitions. Second operand has 5 states, 5 states have (on average 35.8) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-03-03 15:44:01,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 15:44:01,806 INFO L93 Difference]: Finished difference Result 42655 states and 73572 transitions. [2025-03-03 15:44:01,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-03 15:44:01,807 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 35.8) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 190 [2025-03-03 15:44:01,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 15:44:01,881 INFO L225 Difference]: With dead ends: 42655 [2025-03-03 15:44:01,882 INFO L226 Difference]: Without dead ends: 24971 [2025-03-03 15:44:01,918 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2025-03-03 15:44:01,919 INFO L435 NwaCegarLoop]: 4465 mSDtfsCounter, 4862 mSDsluCounter, 8762 mSDsCounter, 0 mSdLazyCounter, 476 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4883 SdHoareTripleChecker+Valid, 13227 SdHoareTripleChecker+Invalid, 512 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 476 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-03 15:44:01,919 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4883 Valid, 13227 Invalid, 512 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 476 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-03 15:44:01,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24971 states. [2025-03-03 15:44:02,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24971 to 19826. [2025-03-03 15:44:02,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19826 states, 18681 states have (on average 1.6561747229805686) internal successors, (30939), 18896 states have internal predecessors, (30939), 733 states have call successors, (733), 199 states have call predecessors, (733), 410 states have return successors, (1755), 762 states have call predecessors, (1755), 731 states have call successors, (1755) [2025-03-03 15:44:02,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19826 states to 19826 states and 33427 transitions. [2025-03-03 15:44:02,673 INFO L78 Accepts]: Start accepts. Automaton has 19826 states and 33427 transitions. Word has length 190 [2025-03-03 15:44:02,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 15:44:02,674 INFO L471 AbstractCegarLoop]: Abstraction has 19826 states and 33427 transitions. [2025-03-03 15:44:02,674 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 35.8) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-03-03 15:44:02,674 INFO L276 IsEmpty]: Start isEmpty. Operand 19826 states and 33427 transitions. [2025-03-03 15:44:02,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2025-03-03 15:44:02,682 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 15:44:02,682 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 15:44:02,682 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-03-03 15:44:02,682 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 15:44:02,683 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 15:44:02,683 INFO L85 PathProgramCache]: Analyzing trace with hash -1400557351, now seen corresponding path program 1 times [2025-03-03 15:44:02,683 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 15:44:02,683 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [763042777] [2025-03-03 15:44:02,683 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 15:44:02,683 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 15:44:02,693 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 190 statements into 1 equivalence classes. [2025-03-03 15:44:02,700 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 190 of 190 statements. [2025-03-03 15:44:02,700 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 15:44:02,700 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 15:44:02,795 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-03 15:44:02,796 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 15:44:02,796 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [763042777] [2025-03-03 15:44:02,796 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [763042777] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 15:44:02,796 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 15:44:02,796 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-03 15:44:02,796 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [10920086] [2025-03-03 15:44:02,796 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 15:44:02,797 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-03 15:44:02,797 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 15:44:02,797 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-03 15:44:02,797 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-03 15:44:02,798 INFO L87 Difference]: Start difference. First operand 19826 states and 33427 transitions. Second operand has 5 states, 5 states have (on average 35.8) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-03-03 15:44:03,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 15:44:03,567 INFO L93 Difference]: Finished difference Result 42165 states and 72526 transitions. [2025-03-03 15:44:03,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-03 15:44:03,570 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 35.8) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 190 [2025-03-03 15:44:03,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 15:44:03,630 INFO L225 Difference]: With dead ends: 42165 [2025-03-03 15:44:03,630 INFO L226 Difference]: Without dead ends: 24481 [2025-03-03 15:44:03,659 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2025-03-03 15:44:03,659 INFO L435 NwaCegarLoop]: 4460 mSDtfsCounter, 4858 mSDsluCounter, 8753 mSDsCounter, 0 mSdLazyCounter, 476 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4879 SdHoareTripleChecker+Valid, 13213 SdHoareTripleChecker+Invalid, 512 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 476 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-03-03 15:44:03,660 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4879 Valid, 13213 Invalid, 512 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 476 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-03-03 15:44:03,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24481 states. [2025-03-03 15:44:04,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24481 to 19826. [2025-03-03 15:44:04,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19826 states, 18681 states have (on average 1.654408222257909) internal successors, (30906), 18896 states have internal predecessors, (30906), 733 states have call successors, (733), 199 states have call predecessors, (733), 410 states have return successors, (1755), 762 states have call predecessors, (1755), 731 states have call successors, (1755) [2025-03-03 15:44:04,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19826 states to 19826 states and 33394 transitions. [2025-03-03 15:44:04,442 INFO L78 Accepts]: Start accepts. Automaton has 19826 states and 33394 transitions. Word has length 190 [2025-03-03 15:44:04,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 15:44:04,446 INFO L471 AbstractCegarLoop]: Abstraction has 19826 states and 33394 transitions. [2025-03-03 15:44:04,446 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 35.8) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-03-03 15:44:04,446 INFO L276 IsEmpty]: Start isEmpty. Operand 19826 states and 33394 transitions. [2025-03-03 15:44:04,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2025-03-03 15:44:04,461 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 15:44:04,462 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 15:44:04,462 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-03-03 15:44:04,462 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 15:44:04,462 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 15:44:04,462 INFO L85 PathProgramCache]: Analyzing trace with hash 1237403704, now seen corresponding path program 1 times [2025-03-03 15:44:04,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 15:44:04,463 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [574236388] [2025-03-03 15:44:04,463 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 15:44:04,463 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 15:44:04,491 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 190 statements into 1 equivalence classes. [2025-03-03 15:44:04,505 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 190 of 190 statements. [2025-03-03 15:44:04,505 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 15:44:04,505 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 15:44:04,644 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-03 15:44:04,644 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 15:44:04,644 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [574236388] [2025-03-03 15:44:04,645 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [574236388] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 15:44:04,645 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 15:44:04,645 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-03 15:44:04,645 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1466034798] [2025-03-03 15:44:04,645 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 15:44:04,645 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-03 15:44:04,645 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 15:44:04,646 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-03 15:44:04,646 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-03 15:44:04,646 INFO L87 Difference]: Start difference. First operand 19826 states and 33394 transitions. Second operand has 5 states, 5 states have (on average 35.8) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-03-03 15:44:05,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 15:44:05,489 INFO L93 Difference]: Finished difference Result 41920 states and 71970 transitions. [2025-03-03 15:44:05,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-03 15:44:05,490 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 35.8) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 190 [2025-03-03 15:44:05,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 15:44:05,559 INFO L225 Difference]: With dead ends: 41920 [2025-03-03 15:44:05,560 INFO L226 Difference]: Without dead ends: 24236 [2025-03-03 15:44:05,592 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2025-03-03 15:44:05,593 INFO L435 NwaCegarLoop]: 4457 mSDtfsCounter, 4855 mSDsluCounter, 8748 mSDsCounter, 0 mSdLazyCounter, 476 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4876 SdHoareTripleChecker+Valid, 13205 SdHoareTripleChecker+Invalid, 512 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 476 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-03 15:44:05,593 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4876 Valid, 13205 Invalid, 512 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 476 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-03 15:44:05,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24236 states. [2025-03-03 15:44:06,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24236 to 19826. [2025-03-03 15:44:06,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19826 states, 18681 states have (on average 1.6526417215352498) internal successors, (30873), 18896 states have internal predecessors, (30873), 733 states have call successors, (733), 199 states have call predecessors, (733), 410 states have return successors, (1755), 762 states have call predecessors, (1755), 731 states have call successors, (1755) [2025-03-03 15:44:06,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19826 states to 19826 states and 33361 transitions. [2025-03-03 15:44:06,187 INFO L78 Accepts]: Start accepts. Automaton has 19826 states and 33361 transitions. Word has length 190 [2025-03-03 15:44:06,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 15:44:06,189 INFO L471 AbstractCegarLoop]: Abstraction has 19826 states and 33361 transitions. [2025-03-03 15:44:06,189 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 35.8) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-03-03 15:44:06,189 INFO L276 IsEmpty]: Start isEmpty. Operand 19826 states and 33361 transitions. [2025-03-03 15:44:06,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2025-03-03 15:44:06,197 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 15:44:06,197 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 15:44:06,197 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-03-03 15:44:06,197 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 15:44:06,198 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 15:44:06,198 INFO L85 PathProgramCache]: Analyzing trace with hash 352667897, now seen corresponding path program 1 times [2025-03-03 15:44:06,198 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 15:44:06,198 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [834670756] [2025-03-03 15:44:06,198 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 15:44:06,198 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 15:44:06,211 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 190 statements into 1 equivalence classes. [2025-03-03 15:44:06,217 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 190 of 190 statements. [2025-03-03 15:44:06,218 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 15:44:06,218 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 15:44:06,305 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-03 15:44:06,307 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 15:44:06,307 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [834670756] [2025-03-03 15:44:06,308 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [834670756] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 15:44:06,308 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 15:44:06,308 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-03 15:44:06,308 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2116414123] [2025-03-03 15:44:06,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 15:44:06,308 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-03 15:44:06,308 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 15:44:06,309 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-03 15:44:06,309 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-03 15:44:06,309 INFO L87 Difference]: Start difference. First operand 19826 states and 33361 transitions. Second operand has 5 states, 5 states have (on average 35.8) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-03-03 15:44:07,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 15:44:07,076 INFO L93 Difference]: Finished difference Result 41675 states and 71414 transitions. [2025-03-03 15:44:07,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-03 15:44:07,077 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 35.8) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 190 [2025-03-03 15:44:07,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 15:44:07,155 INFO L225 Difference]: With dead ends: 41675 [2025-03-03 15:44:07,155 INFO L226 Difference]: Without dead ends: 23991 [2025-03-03 15:44:07,189 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2025-03-03 15:44:07,190 INFO L435 NwaCegarLoop]: 4454 mSDtfsCounter, 4852 mSDsluCounter, 8743 mSDsCounter, 0 mSdLazyCounter, 476 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4873 SdHoareTripleChecker+Valid, 13197 SdHoareTripleChecker+Invalid, 512 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 476 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-03 15:44:07,190 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4873 Valid, 13197 Invalid, 512 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 476 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-03 15:44:07,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23991 states. [2025-03-03 15:44:07,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23991 to 19826. [2025-03-03 15:44:07,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19826 states, 18681 states have (on average 1.6508752208125903) internal successors, (30840), 18896 states have internal predecessors, (30840), 733 states have call successors, (733), 199 states have call predecessors, (733), 410 states have return successors, (1755), 762 states have call predecessors, (1755), 731 states have call successors, (1755) [2025-03-03 15:44:07,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19826 states to 19826 states and 33328 transitions. [2025-03-03 15:44:07,936 INFO L78 Accepts]: Start accepts. Automaton has 19826 states and 33328 transitions. Word has length 190 [2025-03-03 15:44:07,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 15:44:07,936 INFO L471 AbstractCegarLoop]: Abstraction has 19826 states and 33328 transitions. [2025-03-03 15:44:07,937 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 35.8) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-03-03 15:44:07,937 INFO L276 IsEmpty]: Start isEmpty. Operand 19826 states and 33328 transitions. [2025-03-03 15:44:07,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2025-03-03 15:44:07,943 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 15:44:07,943 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 15:44:07,943 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2025-03-03 15:44:07,943 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 15:44:07,944 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 15:44:07,944 INFO L85 PathProgramCache]: Analyzing trace with hash 47033368, now seen corresponding path program 1 times [2025-03-03 15:44:07,944 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 15:44:07,944 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1328035201] [2025-03-03 15:44:07,944 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 15:44:07,944 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 15:44:07,960 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 190 statements into 1 equivalence classes. [2025-03-03 15:44:07,964 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 190 of 190 statements. [2025-03-03 15:44:07,965 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 15:44:07,965 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 15:44:08,055 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-03 15:44:08,055 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 15:44:08,055 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1328035201] [2025-03-03 15:44:08,056 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1328035201] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 15:44:08,056 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 15:44:08,056 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-03 15:44:08,056 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [336717646] [2025-03-03 15:44:08,057 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 15:44:08,057 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-03 15:44:08,057 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 15:44:08,057 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-03 15:44:08,057 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-03 15:44:08,058 INFO L87 Difference]: Start difference. First operand 19826 states and 33328 transitions. Second operand has 6 states, 6 states have (on average 29.833333333333332) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-03-03 15:44:09,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 15:44:09,582 INFO L93 Difference]: Finished difference Result 59202 states and 101482 transitions. [2025-03-03 15:44:09,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-03 15:44:09,582 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 29.833333333333332) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 190 [2025-03-03 15:44:09,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 15:44:09,745 INFO L225 Difference]: With dead ends: 59202 [2025-03-03 15:44:09,746 INFO L226 Difference]: Without dead ends: 41518 [2025-03-03 15:44:09,801 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2025-03-03 15:44:09,803 INFO L435 NwaCegarLoop]: 4821 mSDtfsCounter, 5176 mSDsluCounter, 14564 mSDsCounter, 0 mSdLazyCounter, 1163 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5197 SdHoareTripleChecker+Valid, 19385 SdHoareTripleChecker+Invalid, 1198 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 1163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2025-03-03 15:44:09,803 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5197 Valid, 19385 Invalid, 1198 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 1163 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2025-03-03 15:44:09,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41518 states. [2025-03-03 15:44:11,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41518 to 40925. [2025-03-03 15:44:11,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40925 states, 38430 states have (on average 1.6656778558417902) internal successors, (64012), 39099 states have internal predecessors, (64012), 1437 states have call successors, (1437), 391 states have call predecessors, (1437), 1056 states have return successors, (5531), 1498 states have call predecessors, (5531), 1435 states have call successors, (5531) [2025-03-03 15:44:11,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40925 states to 40925 states and 70980 transitions. [2025-03-03 15:44:11,222 INFO L78 Accepts]: Start accepts. Automaton has 40925 states and 70980 transitions. Word has length 190 [2025-03-03 15:44:11,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 15:44:11,222 INFO L471 AbstractCegarLoop]: Abstraction has 40925 states and 70980 transitions. [2025-03-03 15:44:11,222 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 29.833333333333332) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-03-03 15:44:11,222 INFO L276 IsEmpty]: Start isEmpty. Operand 40925 states and 70980 transitions. [2025-03-03 15:44:11,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2025-03-03 15:44:11,231 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 15:44:11,232 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 15:44:11,232 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2025-03-03 15:44:11,232 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 15:44:11,232 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 15:44:11,232 INFO L85 PathProgramCache]: Analyzing trace with hash -655562471, now seen corresponding path program 1 times [2025-03-03 15:44:11,232 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 15:44:11,232 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [957456483] [2025-03-03 15:44:11,232 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 15:44:11,233 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 15:44:11,241 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 190 statements into 1 equivalence classes. [2025-03-03 15:44:11,245 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 190 of 190 statements. [2025-03-03 15:44:11,245 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 15:44:11,245 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 15:44:11,330 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-03 15:44:11,330 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 15:44:11,330 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [957456483] [2025-03-03 15:44:11,330 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [957456483] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 15:44:11,330 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 15:44:11,331 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-03 15:44:11,331 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [139213816] [2025-03-03 15:44:11,331 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 15:44:11,331 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-03 15:44:11,331 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 15:44:11,332 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-03 15:44:11,332 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-03 15:44:11,333 INFO L87 Difference]: Start difference. First operand 40925 states and 70980 transitions. Second operand has 6 states, 6 states have (on average 29.833333333333332) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-03-03 15:44:14,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 15:44:14,065 INFO L93 Difference]: Finished difference Result 136135 states and 243549 transitions. [2025-03-03 15:44:14,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-03 15:44:14,066 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 29.833333333333332) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 190 [2025-03-03 15:44:14,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 15:44:14,395 INFO L225 Difference]: With dead ends: 136135 [2025-03-03 15:44:14,395 INFO L226 Difference]: Without dead ends: 97352 [2025-03-03 15:44:14,510 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2025-03-03 15:44:14,510 INFO L435 NwaCegarLoop]: 4816 mSDtfsCounter, 5575 mSDsluCounter, 14544 mSDsCounter, 0 mSdLazyCounter, 1166 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5610 SdHoareTripleChecker+Valid, 19360 SdHoareTripleChecker+Invalid, 1204 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 1166 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2025-03-03 15:44:14,511 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5610 Valid, 19360 Invalid, 1204 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 1166 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2025-03-03 15:44:14,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97352 states. [2025-03-03 15:44:17,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97352 to 89978. [2025-03-03 15:44:17,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89978 states, 84361 states have (on average 1.693104633657733) internal successors, (142832), 86424 states have internal predecessors, (142832), 2781 states have call successors, (2781), 775 states have call predecessors, (2781), 2834 states have return successors, (19163), 2906 states have call predecessors, (19163), 2779 states have call successors, (19163) [2025-03-03 15:44:17,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89978 states to 89978 states and 164776 transitions. [2025-03-03 15:44:17,968 INFO L78 Accepts]: Start accepts. Automaton has 89978 states and 164776 transitions. Word has length 190 [2025-03-03 15:44:17,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 15:44:17,969 INFO L471 AbstractCegarLoop]: Abstraction has 89978 states and 164776 transitions. [2025-03-03 15:44:17,969 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 29.833333333333332) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-03-03 15:44:17,969 INFO L276 IsEmpty]: Start isEmpty. Operand 89978 states and 164776 transitions. [2025-03-03 15:44:17,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2025-03-03 15:44:17,987 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 15:44:17,987 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 15:44:17,987 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2025-03-03 15:44:17,987 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 15:44:17,988 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 15:44:17,988 INFO L85 PathProgramCache]: Analyzing trace with hash 291604472, now seen corresponding path program 1 times [2025-03-03 15:44:17,988 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 15:44:17,988 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1395806185] [2025-03-03 15:44:17,988 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 15:44:17,988 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 15:44:17,998 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 190 statements into 1 equivalence classes. [2025-03-03 15:44:18,003 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 190 of 190 statements. [2025-03-03 15:44:18,004 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 15:44:18,004 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 15:44:18,274 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-03 15:44:18,274 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 15:44:18,274 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1395806185] [2025-03-03 15:44:18,274 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1395806185] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 15:44:18,274 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 15:44:18,274 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-03 15:44:18,275 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [243996131] [2025-03-03 15:44:18,275 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 15:44:18,275 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-03 15:44:18,275 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 15:44:18,275 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-03 15:44:18,276 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-03 15:44:18,276 INFO L87 Difference]: Start difference. First operand 89978 states and 164776 transitions. Second operand has 5 states, 5 states have (on average 35.8) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-03-03 15:44:21,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 15:44:21,965 INFO L93 Difference]: Finished difference Result 208460 states and 396926 transitions. [2025-03-03 15:44:21,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-03 15:44:21,965 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 35.8) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 190 [2025-03-03 15:44:21,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 15:44:22,609 INFO L225 Difference]: With dead ends: 208460 [2025-03-03 15:44:22,609 INFO L226 Difference]: Without dead ends: 120624 [2025-03-03 15:44:22,858 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2025-03-03 15:44:22,859 INFO L435 NwaCegarLoop]: 4447 mSDtfsCounter, 4845 mSDsluCounter, 8728 mSDsCounter, 0 mSdLazyCounter, 478 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4866 SdHoareTripleChecker+Valid, 13175 SdHoareTripleChecker+Invalid, 516 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 478 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-03 15:44:22,859 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4866 Valid, 13175 Invalid, 516 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [38 Valid, 478 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-03 15:44:22,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120624 states. [2025-03-03 15:44:26,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120624 to 89978. [2025-03-03 15:44:26,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89978 states, 84361 states have (on average 1.69157549104444) internal successors, (142703), 86424 states have internal predecessors, (142703), 2781 states have call successors, (2781), 775 states have call predecessors, (2781), 2834 states have return successors, (19163), 2906 states have call predecessors, (19163), 2779 states have call successors, (19163) [2025-03-03 15:44:27,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89978 states to 89978 states and 164647 transitions. [2025-03-03 15:44:27,045 INFO L78 Accepts]: Start accepts. Automaton has 89978 states and 164647 transitions. Word has length 190 [2025-03-03 15:44:27,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 15:44:27,046 INFO L471 AbstractCegarLoop]: Abstraction has 89978 states and 164647 transitions. [2025-03-03 15:44:27,046 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 35.8) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-03-03 15:44:27,046 INFO L276 IsEmpty]: Start isEmpty. Operand 89978 states and 164647 transitions. [2025-03-03 15:44:27,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2025-03-03 15:44:27,064 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 15:44:27,064 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 15:44:27,064 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2025-03-03 15:44:27,064 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 15:44:27,064 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 15:44:27,065 INFO L85 PathProgramCache]: Analyzing trace with hash 1014894905, now seen corresponding path program 1 times [2025-03-03 15:44:27,065 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 15:44:27,065 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1755948612] [2025-03-03 15:44:27,065 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 15:44:27,065 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 15:44:27,076 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 190 statements into 1 equivalence classes. [2025-03-03 15:44:27,083 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 190 of 190 statements. [2025-03-03 15:44:27,083 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 15:44:27,084 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 15:44:27,178 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-03 15:44:27,178 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 15:44:27,178 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1755948612] [2025-03-03 15:44:27,178 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1755948612] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 15:44:27,178 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 15:44:27,178 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-03 15:44:27,178 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1744797037] [2025-03-03 15:44:27,179 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 15:44:27,179 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-03 15:44:27,179 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 15:44:27,179 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-03 15:44:27,180 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-03 15:44:27,180 INFO L87 Difference]: Start difference. First operand 89978 states and 164647 transitions. Second operand has 6 states, 6 states have (on average 29.833333333333332) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-03-03 15:44:33,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 15:44:33,858 INFO L93 Difference]: Finished difference Result 305840 states and 587924 transitions. [2025-03-03 15:44:33,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-03 15:44:33,859 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 29.833333333333332) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 190 [2025-03-03 15:44:33,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 15:44:34,783 INFO L225 Difference]: With dead ends: 305840 [2025-03-03 15:44:34,784 INFO L226 Difference]: Without dead ends: 218004 [2025-03-03 15:44:35,087 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2025-03-03 15:44:35,088 INFO L435 NwaCegarLoop]: 4808 mSDtfsCounter, 5502 mSDsluCounter, 14521 mSDsCounter, 0 mSdLazyCounter, 1166 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5537 SdHoareTripleChecker+Valid, 19329 SdHoareTripleChecker+Invalid, 1204 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 1166 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2025-03-03 15:44:35,088 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5537 Valid, 19329 Invalid, 1204 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 1166 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2025-03-03 15:44:35,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218004 states.