./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/combinations/Problem05_label40+token_ring.01.cil-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e2fb8bed Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/combinations/Problem05_label40+token_ring.01.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 4ea3f29ba9098b2aba97edb9cb7f70305173955e39ba1f1f997318892591c82e --- Real Ultimate output --- This is Ultimate 0.3.0-?-e2fb8be-m [2025-03-08 06:46:36,379 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-08 06:46:36,417 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-03-08 06:46:36,421 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-08 06:46:36,421 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-08 06:46:36,437 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-08 06:46:36,437 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-08 06:46:36,438 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-08 06:46:36,438 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-08 06:46:36,438 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-08 06:46:36,438 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-08 06:46:36,438 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-08 06:46:36,438 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-08 06:46:36,438 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-08 06:46:36,438 INFO L153 SettingsManager]: * Use SBE=true [2025-03-08 06:46:36,438 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-08 06:46:36,438 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-08 06:46:36,438 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-08 06:46:36,439 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-08 06:46:36,439 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-08 06:46:36,439 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-08 06:46:36,439 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-08 06:46:36,439 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-08 06:46:36,439 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-08 06:46:36,439 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-08 06:46:36,439 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-08 06:46:36,439 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-08 06:46:36,439 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-08 06:46:36,439 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-08 06:46:36,439 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-08 06:46:36,441 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-08 06:46:36,441 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-08 06:46:36,441 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 06:46:36,442 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-08 06:46:36,442 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-08 06:46:36,442 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-08 06:46:36,442 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-08 06:46:36,443 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-08 06:46:36,443 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-08 06:46:36,444 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-08 06:46:36,444 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-08 06:46:36,444 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-08 06:46:36,444 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-08 06:46:36,444 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 -> 4ea3f29ba9098b2aba97edb9cb7f70305173955e39ba1f1f997318892591c82e [2025-03-08 06:46:36,669 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-08 06:46:36,675 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-08 06:46:36,676 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-08 06:46:36,677 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-08 06:46:36,677 INFO L274 PluginConnector]: CDTParser initialized [2025-03-08 06:46:36,678 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/Problem05_label40+token_ring.01.cil-1.c [2025-03-08 06:46:37,868 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/744b695cb/240c65185d174ff7a528e74ca63f15e7/FLAG0381c1b21 [2025-03-08 06:46:38,459 INFO L384 CDTParser]: Found 1 translation units. [2025-03-08 06:46:38,461 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label40+token_ring.01.cil-1.c [2025-03-08 06:46:38,502 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/744b695cb/240c65185d174ff7a528e74ca63f15e7/FLAG0381c1b21 [2025-03-08 06:46:38,517 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/744b695cb/240c65185d174ff7a528e74ca63f15e7 [2025-03-08 06:46:38,519 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-08 06:46:38,520 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-08 06:46:38,522 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-08 06:46:38,522 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-08 06:46:38,525 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-08 06:46:38,527 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 06:46:38" (1/1) ... [2025-03-08 06:46:38,528 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@62b9ba58 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:46:38, skipping insertion in model container [2025-03-08 06:46:38,528 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 06:46:38" (1/1) ... [2025-03-08 06:46:38,645 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-08 06:46:39,723 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_label40+token_ring.01.cil-1.c[377069,377082] [2025-03-08 06:46:39,753 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_label40+token_ring.01.cil-1.c[383339,383352] [2025-03-08 06:46:39,844 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 06:46:39,850 INFO L200 MainTranslator]: Completed pre-run [2025-03-08 06:46:40,331 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_label40+token_ring.01.cil-1.c[377069,377082] [2025-03-08 06:46:40,338 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_label40+token_ring.01.cil-1.c[383339,383352] [2025-03-08 06:46:40,348 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 06:46:40,391 INFO L204 MainTranslator]: Completed translation [2025-03-08 06:46:40,392 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:46:40 WrapperNode [2025-03-08 06:46:40,393 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-08 06:46:40,394 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-08 06:46:40,394 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-08 06:46:40,395 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-08 06:46:40,400 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:46:40" (1/1) ... [2025-03-08 06:46:40,455 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:46:40" (1/1) ... [2025-03-08 06:46:40,817 INFO L138 Inliner]: procedures = 46, calls = 44, calls flagged for inlining = 24, calls inlined = 24, statements flattened = 12558 [2025-03-08 06:46:40,818 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-08 06:46:40,819 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-08 06:46:40,819 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-08 06:46:40,819 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-08 06:46:40,827 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:46:40" (1/1) ... [2025-03-08 06:46:40,828 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:46:40" (1/1) ... [2025-03-08 06:46:40,856 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:46:40" (1/1) ... [2025-03-08 06:46:40,926 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]. [2025-03-08 06:46:40,927 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:46:40" (1/1) ... [2025-03-08 06:46:40,927 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:46:40" (1/1) ... [2025-03-08 06:46:41,100 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:46:40" (1/1) ... [2025-03-08 06:46:41,115 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:46:40" (1/1) ... [2025-03-08 06:46:41,131 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:46:40" (1/1) ... [2025-03-08 06:46:41,146 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:46:40" (1/1) ... [2025-03-08 06:46:41,180 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-08 06:46:41,182 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-08 06:46:41,183 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-08 06:46:41,183 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-08 06:46:41,183 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:46:40" (1/1) ... [2025-03-08 06:46:41,187 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 06:46:41,196 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 06:46:41,209 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-03-08 06:46:41,215 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-03-08 06:46:41,229 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-08 06:46:41,230 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2025-03-08 06:46:41,230 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2025-03-08 06:46:41,230 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2025-03-08 06:46:41,230 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2025-03-08 06:46:41,230 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2025-03-08 06:46:41,230 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2025-03-08 06:46:41,230 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2025-03-08 06:46:41,230 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2025-03-08 06:46:41,230 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2025-03-08 06:46:41,230 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2025-03-08 06:46:41,230 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-08 06:46:41,230 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2025-03-08 06:46:41,230 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2025-03-08 06:46:41,230 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-08 06:46:41,230 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-08 06:46:41,302 INFO L256 CfgBuilder]: Building ICFG [2025-03-08 06:46:41,304 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-08 06:46:47,023 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L4481: havoc calculate_output3_#t~ret16#1; [2025-03-08 06:46:47,024 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L7469: havoc calculate_output5_#t~ret18#1; [2025-03-08 06:46:47,024 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L3033: havoc calculate_output2_#t~ret15#1; [2025-03-08 06:46:47,024 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L10440: havoc calculate_output7_#t~ret20#1; [2025-03-08 06:46:47,025 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L8922: havoc calculate_output6_#t~ret19#1; [2025-03-08 06:46:47,025 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L6035: havoc calculate_output4_#t~ret17#1; [2025-03-08 06:46:47,025 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L1543: havoc calculate_output_#t~ret14#1; [2025-03-08 06:46:47,273 INFO L? ?]: Removed 1689 outVars from TransFormulas that were not future-live. [2025-03-08 06:46:47,273 INFO L307 CfgBuilder]: Performing block encoding [2025-03-08 06:46:47,350 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-08 06:46:47,350 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-08 06:46:47,351 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 06:46:47 BoogieIcfgContainer [2025-03-08 06:46:47,351 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-08 06:46:47,356 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-08 06:46:47,356 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-08 06:46:47,363 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-08 06:46:47,364 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.03 06:46:38" (1/3) ... [2025-03-08 06:46:47,364 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ff3aefe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 06:46:47, skipping insertion in model container [2025-03-08 06:46:47,364 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:46:40" (2/3) ... [2025-03-08 06:46:47,364 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ff3aefe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 06:46:47, skipping insertion in model container [2025-03-08 06:46:47,364 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 06:46:47" (3/3) ... [2025-03-08 06:46:47,365 INFO L128 eAbstractionObserver]: Analyzing ICFG Problem05_label40+token_ring.01.cil-1.c [2025-03-08 06:46:47,379 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-08 06:46:47,381 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG Problem05_label40+token_ring.01.cil-1.c that has 7 procedures, 2288 locations, 1 initial locations, 5 loop locations, and 2 error locations. [2025-03-08 06:46:47,543 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-08 06:46:47,550 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;@607b6598, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-08 06:46:47,554 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2025-03-08 06:46:47,563 INFO L276 IsEmpty]: Start isEmpty. Operand has 2288 states, 2265 states have (on average 1.8565121412803531) internal successors, (4205), 2267 states have internal predecessors, (4205), 15 states have call successors, (15), 6 states have call predecessors, (15), 6 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2025-03-08 06:46:47,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2025-03-08 06:46:47,569 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 06:46:47,569 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] [2025-03-08 06:46:47,570 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 06:46:47,573 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 06:46:47,573 INFO L85 PathProgramCache]: Analyzing trace with hash -94711627, now seen corresponding path program 1 times [2025-03-08 06:46:47,580 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 06:46:47,580 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1933972903] [2025-03-08 06:46:47,581 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 06:46:47,581 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 06:46:47,668 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 55 statements into 1 equivalence classes. [2025-03-08 06:46:47,685 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 55 of 55 statements. [2025-03-08 06:46:47,686 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 06:46:47,686 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 06:46:47,863 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 06:46:47,865 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 06:46:47,865 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1933972903] [2025-03-08 06:46:47,865 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1933972903] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 06:46:47,866 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 06:46:47,866 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-08 06:46:47,867 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1314470826] [2025-03-08 06:46:47,867 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 06:46:47,870 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-08 06:46:47,871 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 06:46:47,884 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-08 06:46:47,885 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-08 06:46:47,892 INFO L87 Difference]: Start difference. First operand has 2288 states, 2265 states have (on average 1.8565121412803531) internal successors, (4205), 2267 states have internal predecessors, (4205), 15 states have call successors, (15), 6 states have call predecessors, (15), 6 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) Second operand has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-03-08 06:46:48,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 06:46:48,255 INFO L93 Difference]: Finished difference Result 4665 states and 8603 transitions. [2025-03-08 06:46:48,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-08 06:46:48,257 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 55 [2025-03-08 06:46:48,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 06:46:48,276 INFO L225 Difference]: With dead ends: 4665 [2025-03-08 06:46:48,277 INFO L226 Difference]: Without dead ends: 2316 [2025-03-08 06:46:48,285 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 [2025-03-08 06:46:48,286 INFO L435 NwaCegarLoop]: 4143 mSDtfsCounter, 4239 mSDsluCounter, 8325 mSDsCounter, 0 mSdLazyCounter, 181 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4248 SdHoareTripleChecker+Valid, 12468 SdHoareTripleChecker+Invalid, 215 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 181 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-08 06:46:48,287 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4248 Valid, 12468 Invalid, 215 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 181 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-08 06:46:48,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2316 states. [2025-03-08 06:46:48,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2316 to 2309. [2025-03-08 06:46:48,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2309 states, 2269 states have (on average 1.8391361833406787) internal successors, (4173), 2272 states have internal predecessors, (4173), 25 states have call successors, (25), 12 states have call predecessors, (25), 13 states have return successors, (26), 25 states have call predecessors, (26), 25 states have call successors, (26) [2025-03-08 06:46:48,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2309 states to 2309 states and 4224 transitions. [2025-03-08 06:46:48,406 INFO L78 Accepts]: Start accepts. Automaton has 2309 states and 4224 transitions. Word has length 55 [2025-03-08 06:46:48,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 06:46:48,406 INFO L471 AbstractCegarLoop]: Abstraction has 2309 states and 4224 transitions. [2025-03-08 06:46:48,408 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-03-08 06:46:48,408 INFO L276 IsEmpty]: Start isEmpty. Operand 2309 states and 4224 transitions. [2025-03-08 06:46:48,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2025-03-08 06:46:48,410 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 06:46:48,410 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] [2025-03-08 06:46:48,410 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-08 06:46:48,410 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 06:46:48,411 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 06:46:48,411 INFO L85 PathProgramCache]: Analyzing trace with hash -332057353, now seen corresponding path program 1 times [2025-03-08 06:46:48,411 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 06:46:48,411 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1472822306] [2025-03-08 06:46:48,412 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 06:46:48,412 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 06:46:48,420 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 55 statements into 1 equivalence classes. [2025-03-08 06:46:48,428 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 55 of 55 statements. [2025-03-08 06:46:48,432 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 06:46:48,432 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 06:46:48,545 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 06:46:48,545 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 06:46:48,545 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1472822306] [2025-03-08 06:46:48,546 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1472822306] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 06:46:48,546 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 06:46:48,546 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-08 06:46:48,546 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1861997210] [2025-03-08 06:46:48,546 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 06:46:48,547 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-08 06:46:48,547 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 06:46:48,547 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-08 06:46:48,547 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-08 06:46:48,548 INFO L87 Difference]: Start difference. First operand 2309 states and 4224 transitions. Second operand has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-03-08 06:46:48,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 06:46:48,714 INFO L93 Difference]: Finished difference Result 2500 states and 4499 transitions. [2025-03-08 06:46:48,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-08 06:46:48,715 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 55 [2025-03-08 06:46:48,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 06:46:48,724 INFO L225 Difference]: With dead ends: 2500 [2025-03-08 06:46:48,724 INFO L226 Difference]: Without dead ends: 2321 [2025-03-08 06:46:48,726 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 [2025-03-08 06:46:48,727 INFO L435 NwaCegarLoop]: 4055 mSDtfsCounter, 4120 mSDsluCounter, 8065 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4129 SdHoareTripleChecker+Valid, 12120 SdHoareTripleChecker+Invalid, 158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-08 06:46:48,727 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4129 Valid, 12120 Invalid, 158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-08 06:46:48,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2321 states. [2025-03-08 06:46:48,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2321 to 2309. [2025-03-08 06:46:48,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2309 states, 2269 states have (on average 1.8382547377699427) internal successors, (4171), 2272 states have internal predecessors, (4171), 25 states have call successors, (25), 12 states have call predecessors, (25), 13 states have return successors, (26), 25 states have call predecessors, (26), 25 states have call successors, (26) [2025-03-08 06:46:48,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2309 states to 2309 states and 4222 transitions. [2025-03-08 06:46:48,787 INFO L78 Accepts]: Start accepts. Automaton has 2309 states and 4222 transitions. Word has length 55 [2025-03-08 06:46:48,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 06:46:48,787 INFO L471 AbstractCegarLoop]: Abstraction has 2309 states and 4222 transitions. [2025-03-08 06:46:48,787 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-03-08 06:46:48,787 INFO L276 IsEmpty]: Start isEmpty. Operand 2309 states and 4222 transitions. [2025-03-08 06:46:48,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2025-03-08 06:46:48,788 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 06:46:48,788 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] [2025-03-08 06:46:48,788 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-08 06:46:48,788 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 06:46:48,789 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 06:46:48,789 INFO L85 PathProgramCache]: Analyzing trace with hash -207984106, now seen corresponding path program 1 times [2025-03-08 06:46:48,789 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 06:46:48,789 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [326334406] [2025-03-08 06:46:48,789 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 06:46:48,789 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 06:46:48,796 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 55 statements into 1 equivalence classes. [2025-03-08 06:46:48,802 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 55 of 55 statements. [2025-03-08 06:46:48,805 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 06:46:48,805 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 06:46:48,928 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 06:46:48,929 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 06:46:48,929 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [326334406] [2025-03-08 06:46:48,929 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [326334406] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 06:46:48,929 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 06:46:48,929 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-08 06:46:48,930 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [892190731] [2025-03-08 06:46:48,930 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 06:46:48,931 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-08 06:46:48,931 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 06:46:48,931 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-08 06:46:48,931 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-08 06:46:48,931 INFO L87 Difference]: Start difference. First operand 2309 states and 4222 transitions. Second operand has 6 states, 6 states have (on average 7.5) internal successors, (45), 5 states have internal predecessors, (45), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-03-08 06:46:49,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 06:46:49,287 INFO L93 Difference]: Finished difference Result 2601 states and 4630 transitions. [2025-03-08 06:46:49,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-08 06:46:49,288 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 5 states have internal predecessors, (45), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 55 [2025-03-08 06:46:49,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 06:46:49,297 INFO L225 Difference]: With dead ends: 2601 [2025-03-08 06:46:49,298 INFO L226 Difference]: Without dead ends: 2422 [2025-03-08 06:46:49,299 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 [2025-03-08 06:46:49,300 INFO L435 NwaCegarLoop]: 4121 mSDtfsCounter, 4196 mSDsluCounter, 12314 mSDsCounter, 0 mSdLazyCounter, 359 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4207 SdHoareTripleChecker+Valid, 16435 SdHoareTripleChecker+Invalid, 383 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 359 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-08 06:46:49,300 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4207 Valid, 16435 Invalid, 383 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 359 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-08 06:46:49,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2422 states. [2025-03-08 06:46:49,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2422 to 2388. [2025-03-08 06:46:49,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2388 states, 2332 states have (on average 1.8263293310463122) internal successors, (4259), 2336 states have internal predecessors, (4259), 34 states have call successors, (34), 18 states have call predecessors, (34), 20 states have return successors, (38), 35 states have call predecessors, (38), 34 states have call successors, (38) [2025-03-08 06:46:49,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2388 states to 2388 states and 4331 transitions. [2025-03-08 06:46:49,348 INFO L78 Accepts]: Start accepts. Automaton has 2388 states and 4331 transitions. Word has length 55 [2025-03-08 06:46:49,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 06:46:49,348 INFO L471 AbstractCegarLoop]: Abstraction has 2388 states and 4331 transitions. [2025-03-08 06:46:49,348 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 5 states have internal predecessors, (45), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-03-08 06:46:49,348 INFO L276 IsEmpty]: Start isEmpty. Operand 2388 states and 4331 transitions. [2025-03-08 06:46:49,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2025-03-08 06:46:49,349 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 06:46:49,349 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] [2025-03-08 06:46:49,349 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-08 06:46:49,350 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 06:46:49,350 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 06:46:49,350 INFO L85 PathProgramCache]: Analyzing trace with hash -2143644393, now seen corresponding path program 1 times [2025-03-08 06:46:49,350 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 06:46:49,350 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [751113588] [2025-03-08 06:46:49,350 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 06:46:49,350 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 06:46:49,354 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 55 statements into 1 equivalence classes. [2025-03-08 06:46:49,358 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 55 of 55 statements. [2025-03-08 06:46:49,358 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 06:46:49,358 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 06:46:49,415 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 06:46:49,416 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 06:46:49,416 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [751113588] [2025-03-08 06:46:49,416 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [751113588] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 06:46:49,416 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 06:46:49,416 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-08 06:46:49,416 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [988937749] [2025-03-08 06:46:49,416 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 06:46:49,416 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-08 06:46:49,416 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 06:46:49,416 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-08 06:46:49,417 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-08 06:46:49,417 INFO L87 Difference]: Start difference. First operand 2388 states and 4331 transitions. Second operand has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-03-08 06:46:49,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 06:46:49,574 INFO L93 Difference]: Finished difference Result 2656 states and 4708 transitions. [2025-03-08 06:46:49,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-08 06:46:49,574 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 55 [2025-03-08 06:46:49,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 06:46:49,582 INFO L225 Difference]: With dead ends: 2656 [2025-03-08 06:46:49,582 INFO L226 Difference]: Without dead ends: 2398 [2025-03-08 06:46:49,583 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 [2025-03-08 06:46:49,584 INFO L435 NwaCegarLoop]: 4050 mSDtfsCounter, 4114 mSDsluCounter, 8054 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4123 SdHoareTripleChecker+Valid, 12104 SdHoareTripleChecker+Invalid, 162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-08 06:46:49,584 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4123 Valid, 12104 Invalid, 162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-08 06:46:49,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2398 states. [2025-03-08 06:46:49,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2398 to 2388. [2025-03-08 06:46:49,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2388 states, 2332 states have (on average 1.8250428816466553) internal successors, (4256), 2336 states have internal predecessors, (4256), 34 states have call successors, (34), 18 states have call predecessors, (34), 20 states have return successors, (38), 35 states have call predecessors, (38), 34 states have call successors, (38) [2025-03-08 06:46:49,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2388 states to 2388 states and 4328 transitions. [2025-03-08 06:46:49,637 INFO L78 Accepts]: Start accepts. Automaton has 2388 states and 4328 transitions. Word has length 55 [2025-03-08 06:46:49,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 06:46:49,637 INFO L471 AbstractCegarLoop]: Abstraction has 2388 states and 4328 transitions. [2025-03-08 06:46:49,637 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-03-08 06:46:49,637 INFO L276 IsEmpty]: Start isEmpty. Operand 2388 states and 4328 transitions. [2025-03-08 06:46:49,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2025-03-08 06:46:49,639 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 06:46:49,639 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] [2025-03-08 06:46:49,639 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-08 06:46:49,639 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 06:46:49,639 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 06:46:49,639 INFO L85 PathProgramCache]: Analyzing trace with hash -682064394, now seen corresponding path program 1 times [2025-03-08 06:46:49,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 06:46:49,639 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1739693735] [2025-03-08 06:46:49,640 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 06:46:49,640 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 06:46:49,643 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 55 statements into 1 equivalence classes. [2025-03-08 06:46:49,646 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 55 of 55 statements. [2025-03-08 06:46:49,646 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 06:46:49,646 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 06:46:49,685 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 06:46:49,685 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 06:46:49,685 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1739693735] [2025-03-08 06:46:49,685 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1739693735] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 06:46:49,685 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 06:46:49,686 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-08 06:46:49,686 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [900720931] [2025-03-08 06:46:49,686 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 06:46:49,686 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-08 06:46:49,686 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 06:46:49,686 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-08 06:46:49,686 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-08 06:46:49,686 INFO L87 Difference]: Start difference. First operand 2388 states and 4328 transitions. Second operand has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-03-08 06:46:49,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 06:46:49,808 INFO L93 Difference]: Finished difference Result 2887 states and 5038 transitions. [2025-03-08 06:46:49,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-08 06:46:49,809 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 55 [2025-03-08 06:46:49,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 06:46:49,817 INFO L225 Difference]: With dead ends: 2887 [2025-03-08 06:46:49,817 INFO L226 Difference]: Without dead ends: 2630 [2025-03-08 06:46:49,819 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-08 06:46:49,819 INFO L435 NwaCegarLoop]: 4203 mSDtfsCounter, 4184 mSDsluCounter, 4148 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4184 SdHoareTripleChecker+Valid, 8351 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-08 06:46:49,819 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4184 Valid, 8351 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-08 06:46:49,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2630 states. [2025-03-08 06:46:49,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2630 to 2627. [2025-03-08 06:46:49,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2627 states, 2521 states have (on average 1.7869892899642998) internal successors, (4505), 2530 states have internal predecessors, (4505), 64 states have call successors, (64), 36 states have call predecessors, (64), 40 states have return successors, (71), 62 states have call predecessors, (71), 64 states have call successors, (71) [2025-03-08 06:46:49,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2627 states to 2627 states and 4640 transitions. [2025-03-08 06:46:49,877 INFO L78 Accepts]: Start accepts. Automaton has 2627 states and 4640 transitions. Word has length 55 [2025-03-08 06:46:49,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 06:46:49,877 INFO L471 AbstractCegarLoop]: Abstraction has 2627 states and 4640 transitions. [2025-03-08 06:46:49,877 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-03-08 06:46:49,877 INFO L276 IsEmpty]: Start isEmpty. Operand 2627 states and 4640 transitions. [2025-03-08 06:46:49,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2025-03-08 06:46:49,878 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 06:46:49,879 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 06:46:49,879 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-03-08 06:46:49,879 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 06:46:49,879 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 06:46:49,879 INFO L85 PathProgramCache]: Analyzing trace with hash -1428162897, now seen corresponding path program 1 times [2025-03-08 06:46:49,879 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 06:46:49,879 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [394018106] [2025-03-08 06:46:49,879 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 06:46:49,879 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 06:46:49,885 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 89 statements into 1 equivalence classes. [2025-03-08 06:46:49,889 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 89 of 89 statements. [2025-03-08 06:46:49,890 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 06:46:49,890 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 06:46:49,964 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2025-03-08 06:46:49,964 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 06:46:49,964 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [394018106] [2025-03-08 06:46:49,964 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [394018106] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 06:46:49,964 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1965414414] [2025-03-08 06:46:49,964 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 06:46:49,965 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 06:46:49,965 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 06:46:49,968 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-08 06:46:49,969 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-03-08 06:46:50,017 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 89 statements into 1 equivalence classes. [2025-03-08 06:46:50,042 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 89 of 89 statements. [2025-03-08 06:46:50,042 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 06:46:50,042 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 06:46:50,044 INFO L256 TraceCheckSpWp]: Trace formula consists of 318 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-03-08 06:46:50,047 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 06:46:50,085 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2025-03-08 06:46:50,085 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-08 06:46:50,085 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1965414414] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 06:46:50,085 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-08 06:46:50,086 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2025-03-08 06:46:50,086 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [103155919] [2025-03-08 06:46:50,086 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 06:46:50,086 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-08 06:46:50,086 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 06:46:50,086 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-08 06:46:50,087 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-08 06:46:50,087 INFO L87 Difference]: Start difference. First operand 2627 states and 4640 transitions. Second operand has 3 states, 3 states have (on average 20.0) internal successors, (60), 2 states have internal predecessors, (60), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2025-03-08 06:46:50,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 06:46:50,213 INFO L93 Difference]: Finished difference Result 3594 states and 5958 transitions. [2025-03-08 06:46:50,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-08 06:46:50,214 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 2 states have internal predecessors, (60), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 89 [2025-03-08 06:46:50,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 06:46:50,225 INFO L225 Difference]: With dead ends: 3594 [2025-03-08 06:46:50,225 INFO L226 Difference]: Without dead ends: 3098 [2025-03-08 06:46:50,228 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-08 06:46:50,229 INFO L435 NwaCegarLoop]: 4093 mSDtfsCounter, 4061 mSDsluCounter, 115 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4061 SdHoareTripleChecker+Valid, 4208 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-08 06:46:50,229 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4061 Valid, 4208 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-08 06:46:50,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3098 states. [2025-03-08 06:46:50,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3098 to 3090. [2025-03-08 06:46:50,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3090 states, 2888 states have (on average 1.7306094182825484) internal successors, (4998), 2904 states have internal predecessors, (4998), 120 states have call successors, (120), 72 states have call predecessors, (120), 80 states have return successors, (133), 115 states have call predecessors, (133), 120 states have call successors, (133) [2025-03-08 06:46:50,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3090 states to 3090 states and 5251 transitions. [2025-03-08 06:46:50,344 INFO L78 Accepts]: Start accepts. Automaton has 3090 states and 5251 transitions. Word has length 89 [2025-03-08 06:46:50,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 06:46:50,344 INFO L471 AbstractCegarLoop]: Abstraction has 3090 states and 5251 transitions. [2025-03-08 06:46:50,344 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 2 states have internal predecessors, (60), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2025-03-08 06:46:50,344 INFO L276 IsEmpty]: Start isEmpty. Operand 3090 states and 5251 transitions. [2025-03-08 06:46:50,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2025-03-08 06:46:50,346 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 06:46:50,346 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 06:46:50,353 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2025-03-08 06:46:50,550 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2025-03-08 06:46:50,551 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 06:46:50,552 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 06:46:50,552 INFO L85 PathProgramCache]: Analyzing trace with hash -1416559051, now seen corresponding path program 1 times [2025-03-08 06:46:50,552 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 06:46:50,552 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [767397972] [2025-03-08 06:46:50,552 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 06:46:50,552 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 06:46:50,558 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 89 statements into 1 equivalence classes. [2025-03-08 06:46:50,560 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 89 of 89 statements. [2025-03-08 06:46:50,561 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 06:46:50,561 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 06:46:50,628 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2025-03-08 06:46:50,628 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 06:46:50,628 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [767397972] [2025-03-08 06:46:50,628 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [767397972] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 06:46:50,628 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1731344698] [2025-03-08 06:46:50,628 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 06:46:50,628 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 06:46:50,628 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 06:46:50,631 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-08 06:46:50,633 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-03-08 06:46:50,676 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 89 statements into 1 equivalence classes. [2025-03-08 06:46:50,707 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 89 of 89 statements. [2025-03-08 06:46:50,707 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 06:46:50,707 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 06:46:50,709 INFO L256 TraceCheckSpWp]: Trace formula consists of 312 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-03-08 06:46:50,711 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 06:46:50,731 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2025-03-08 06:46:50,732 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-08 06:46:50,732 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1731344698] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 06:46:50,732 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-08 06:46:50,733 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2025-03-08 06:46:50,733 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1315087309] [2025-03-08 06:46:50,733 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 06:46:50,733 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-08 06:46:50,733 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 06:46:50,734 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-08 06:46:50,734 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-08 06:46:50,734 INFO L87 Difference]: Start difference. First operand 3090 states and 5251 transitions. Second operand has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2025-03-08 06:46:50,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 06:46:50,841 INFO L93 Difference]: Finished difference Result 4907 states and 7739 transitions. [2025-03-08 06:46:50,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-08 06:46:50,842 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 89 [2025-03-08 06:46:50,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 06:46:50,855 INFO L225 Difference]: With dead ends: 4907 [2025-03-08 06:46:50,856 INFO L226 Difference]: Without dead ends: 3949 [2025-03-08 06:46:50,859 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-08 06:46:50,860 INFO L435 NwaCegarLoop]: 4206 mSDtfsCounter, 111 mSDsluCounter, 4090 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 8296 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-08 06:46:50,860 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [111 Valid, 8296 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-08 06:46:50,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3949 states. [2025-03-08 06:46:50,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3949 to 3949. [2025-03-08 06:46:50,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3949 states, 3576 states have (on average 1.654082774049217) internal successors, (5915), 3601 states have internal predecessors, (5915), 219 states have call successors, (219), 136 states have call predecessors, (219), 152 states have return successors, (270), 215 states have call predecessors, (270), 219 states have call successors, (270) [2025-03-08 06:46:50,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3949 states to 3949 states and 6404 transitions. [2025-03-08 06:46:50,987 INFO L78 Accepts]: Start accepts. Automaton has 3949 states and 6404 transitions. Word has length 89 [2025-03-08 06:46:50,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 06:46:50,988 INFO L471 AbstractCegarLoop]: Abstraction has 3949 states and 6404 transitions. [2025-03-08 06:46:50,988 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2025-03-08 06:46:50,988 INFO L276 IsEmpty]: Start isEmpty. Operand 3949 states and 6404 transitions. [2025-03-08 06:46:50,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2025-03-08 06:46:50,993 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 06:46:50,993 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 06:46:50,999 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-03-08 06:46:51,193 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2025-03-08 06:46:51,194 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 06:46:51,195 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 06:46:51,195 INFO L85 PathProgramCache]: Analyzing trace with hash -1640381121, now seen corresponding path program 1 times [2025-03-08 06:46:51,195 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 06:46:51,195 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1358047615] [2025-03-08 06:46:51,195 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 06:46:51,195 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 06:46:51,201 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 130 statements into 1 equivalence classes. [2025-03-08 06:46:51,203 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 130 of 130 statements. [2025-03-08 06:46:51,203 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 06:46:51,203 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 06:46:51,267 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2025-03-08 06:46:51,267 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 06:46:51,267 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1358047615] [2025-03-08 06:46:51,267 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1358047615] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 06:46:51,267 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [613560221] [2025-03-08 06:46:51,267 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 06:46:51,267 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 06:46:51,267 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 06:46:51,270 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-08 06:46:51,271 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-03-08 06:46:51,317 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 130 statements into 1 equivalence classes. [2025-03-08 06:46:51,351 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 130 of 130 statements. [2025-03-08 06:46:51,351 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 06:46:51,351 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 06:46:51,352 INFO L256 TraceCheckSpWp]: Trace formula consists of 424 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-03-08 06:46:51,356 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 06:46:51,392 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 54 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2025-03-08 06:46:51,392 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-08 06:46:51,392 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [613560221] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 06:46:51,392 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-08 06:46:51,392 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2025-03-08 06:46:51,392 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1753403426] [2025-03-08 06:46:51,392 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 06:46:51,392 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-08 06:46:51,392 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 06:46:51,393 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-08 06:46:51,393 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-08 06:46:51,393 INFO L87 Difference]: Start difference. First operand 3949 states and 6404 transitions. Second operand has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 3 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) [2025-03-08 06:46:51,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 06:46:51,517 INFO L93 Difference]: Finished difference Result 5953 states and 9143 transitions. [2025-03-08 06:46:51,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-08 06:46:51,517 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 3 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) Word has length 130 [2025-03-08 06:46:51,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 06:46:51,537 INFO L225 Difference]: With dead ends: 5953 [2025-03-08 06:46:51,537 INFO L226 Difference]: Without dead ends: 4141 [2025-03-08 06:46:51,542 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-08 06:46:51,543 INFO L435 NwaCegarLoop]: 4096 mSDtfsCounter, 4072 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4072 SdHoareTripleChecker+Valid, 4120 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-08 06:46:51,543 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4072 Valid, 4120 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-08 06:46:51,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4141 states. [2025-03-08 06:46:51,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4141 to 4141. [2025-03-08 06:46:51,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4141 states, 3748 states have (on average 1.617129135538954) internal successors, (6061), 3773 states have internal predecessors, (6061), 223 states have call successors, (223), 152 states have call predecessors, (223), 168 states have return successors, (274), 219 states have call predecessors, (274), 223 states have call successors, (274) [2025-03-08 06:46:51,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4141 states to 4141 states and 6558 transitions. [2025-03-08 06:46:51,696 INFO L78 Accepts]: Start accepts. Automaton has 4141 states and 6558 transitions. Word has length 130 [2025-03-08 06:46:51,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 06:46:51,696 INFO L471 AbstractCegarLoop]: Abstraction has 4141 states and 6558 transitions. [2025-03-08 06:46:51,697 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 3 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) [2025-03-08 06:46:51,697 INFO L276 IsEmpty]: Start isEmpty. Operand 4141 states and 6558 transitions. [2025-03-08 06:46:51,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2025-03-08 06:46:51,701 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 06:46:51,701 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 06:46:51,707 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-03-08 06:46:51,901 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 06:46:51,902 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 06:46:51,902 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 06:46:51,902 INFO L85 PathProgramCache]: Analyzing trace with hash -1182561213, now seen corresponding path program 1 times [2025-03-08 06:46:51,902 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 06:46:51,902 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [35871919] [2025-03-08 06:46:51,902 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 06:46:51,903 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 06:46:51,908 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 130 statements into 1 equivalence classes. [2025-03-08 06:46:51,910 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 130 of 130 statements. [2025-03-08 06:46:51,911 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 06:46:51,911 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 06:46:51,968 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2025-03-08 06:46:51,968 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 06:46:51,968 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [35871919] [2025-03-08 06:46:51,968 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [35871919] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 06:46:51,968 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1035541061] [2025-03-08 06:46:51,969 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 06:46:51,969 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 06:46:51,969 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 06:46:51,970 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-08 06:46:51,972 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-03-08 06:46:52,009 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 130 statements into 1 equivalence classes. [2025-03-08 06:46:52,041 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 130 of 130 statements. [2025-03-08 06:46:52,041 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 06:46:52,041 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 06:46:52,044 INFO L256 TraceCheckSpWp]: Trace formula consists of 418 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-08 06:46:52,046 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 06:46:52,083 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2025-03-08 06:46:52,085 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-08 06:46:52,085 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1035541061] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 06:46:52,085 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-08 06:46:52,086 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2025-03-08 06:46:52,086 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [241935442] [2025-03-08 06:46:52,086 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 06:46:52,086 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-08 06:46:52,086 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 06:46:52,086 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-08 06:46:52,087 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-08 06:46:52,087 INFO L87 Difference]: Start difference. First operand 4141 states and 6558 transitions. Second operand has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 3 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2025-03-08 06:46:52,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 06:46:52,197 INFO L93 Difference]: Finished difference Result 5844 states and 8752 transitions. [2025-03-08 06:46:52,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-08 06:46:52,197 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 3 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 130 [2025-03-08 06:46:52,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 06:46:52,217 INFO L225 Difference]: With dead ends: 5844 [2025-03-08 06:46:52,217 INFO L226 Difference]: Without dead ends: 4261 [2025-03-08 06:46:52,222 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-08 06:46:52,223 INFO L435 NwaCegarLoop]: 4113 mSDtfsCounter, 4054 mSDsluCounter, 121 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4054 SdHoareTripleChecker+Valid, 4234 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-08 06:46:52,223 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4054 Valid, 4234 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-08 06:46:52,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4261 states. [2025-03-08 06:46:52,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4261 to 4129. [2025-03-08 06:46:52,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4129 states, 3736 states have (on average 1.609475374732334) internal successors, (6013), 3761 states have internal predecessors, (6013), 223 states have call successors, (223), 152 states have call predecessors, (223), 168 states have return successors, (274), 219 states have call predecessors, (274), 223 states have call successors, (274) [2025-03-08 06:46:52,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4129 states to 4129 states and 6510 transitions. [2025-03-08 06:46:52,384 INFO L78 Accepts]: Start accepts. Automaton has 4129 states and 6510 transitions. Word has length 130 [2025-03-08 06:46:52,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 06:46:52,384 INFO L471 AbstractCegarLoop]: Abstraction has 4129 states and 6510 transitions. [2025-03-08 06:46:52,384 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 3 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2025-03-08 06:46:52,385 INFO L276 IsEmpty]: Start isEmpty. Operand 4129 states and 6510 transitions. [2025-03-08 06:46:52,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2025-03-08 06:46:52,388 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 06:46:52,388 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 06:46:52,394 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2025-03-08 06:46:52,592 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 06:46:52,592 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 06:46:52,592 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 06:46:52,595 INFO L85 PathProgramCache]: Analyzing trace with hash -1488050802, now seen corresponding path program 1 times [2025-03-08 06:46:52,595 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 06:46:52,595 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [729604091] [2025-03-08 06:46:52,595 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 06:46:52,595 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 06:46:52,601 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 131 statements into 1 equivalence classes. [2025-03-08 06:46:52,606 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 131 of 131 statements. [2025-03-08 06:46:52,606 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 06:46:52,606 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 06:46:52,670 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2025-03-08 06:46:52,670 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 06:46:52,670 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [729604091] [2025-03-08 06:46:52,670 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [729604091] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 06:46:52,670 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1048465569] [2025-03-08 06:46:52,670 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 06:46:52,670 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 06:46:52,671 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 06:46:52,672 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-08 06:46:52,674 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2025-03-08 06:46:52,722 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 131 statements into 1 equivalence classes. [2025-03-08 06:46:52,771 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 131 of 131 statements. [2025-03-08 06:46:52,771 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 06:46:52,771 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 06:46:52,773 INFO L256 TraceCheckSpWp]: Trace formula consists of 416 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-03-08 06:46:52,776 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 06:46:52,797 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 58 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2025-03-08 06:46:52,797 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-08 06:46:52,797 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1048465569] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 06:46:52,797 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-08 06:46:52,797 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2025-03-08 06:46:52,798 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [526790552] [2025-03-08 06:46:52,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 06:46:52,798 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-08 06:46:52,798 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 06:46:52,799 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-08 06:46:52,799 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-08 06:46:52,799 INFO L87 Difference]: Start difference. First operand 4129 states and 6510 transitions. Second operand has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 3 states have call successors, (11), 3 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) [2025-03-08 06:46:52,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 06:46:52,934 INFO L93 Difference]: Finished difference Result 7965 states and 11452 transitions. [2025-03-08 06:46:52,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-08 06:46:52,935 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 3 states have call successors, (11), 3 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) Word has length 131 [2025-03-08 06:46:52,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 06:46:52,951 INFO L225 Difference]: With dead ends: 7965 [2025-03-08 06:46:52,951 INFO L226 Difference]: Without dead ends: 5973 [2025-03-08 06:46:52,958 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-08 06:46:52,958 INFO L435 NwaCegarLoop]: 4201 mSDtfsCounter, 108 mSDsluCounter, 4088 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 8289 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-08 06:46:52,959 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [108 Valid, 8289 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-08 06:46:52,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5973 states. [2025-03-08 06:46:53,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5973 to 5971. [2025-03-08 06:46:53,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5971 states, 5212 states have (on average 1.5021105141980047) internal successors, (7829), 5261 states have internal predecessors, (7829), 429 states have call successors, (429), 296 states have call predecessors, (429), 328 states have return successors, (598), 421 states have call predecessors, (598), 429 states have call successors, (598) [2025-03-08 06:46:53,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5971 states to 5971 states and 8856 transitions. [2025-03-08 06:46:53,289 INFO L78 Accepts]: Start accepts. Automaton has 5971 states and 8856 transitions. Word has length 131 [2025-03-08 06:46:53,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 06:46:53,289 INFO L471 AbstractCegarLoop]: Abstraction has 5971 states and 8856 transitions. [2025-03-08 06:46:53,289 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 3 states have call successors, (11), 3 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) [2025-03-08 06:46:53,289 INFO L276 IsEmpty]: Start isEmpty. Operand 5971 states and 8856 transitions. [2025-03-08 06:46:53,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2025-03-08 06:46:53,295 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 06:46:53,295 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 06:46:53,302 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2025-03-08 06:46:53,496 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2025-03-08 06:46:53,496 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 06:46:53,497 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 06:46:53,499 INFO L85 PathProgramCache]: Analyzing trace with hash 522776877, now seen corresponding path program 1 times [2025-03-08 06:46:53,499 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 06:46:53,499 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [699211888] [2025-03-08 06:46:53,499 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 06:46:53,499 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 06:46:53,517 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 132 statements into 1 equivalence classes. [2025-03-08 06:46:53,523 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 132 of 132 statements. [2025-03-08 06:46:53,523 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 06:46:53,523 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 06:46:53,572 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2025-03-08 06:46:53,572 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 06:46:53,572 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [699211888] [2025-03-08 06:46:53,572 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [699211888] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 06:46:53,572 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [318922837] [2025-03-08 06:46:53,572 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 06:46:53,572 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 06:46:53,573 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 06:46:53,575 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-08 06:46:53,576 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2025-03-08 06:46:53,613 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 132 statements into 1 equivalence classes. [2025-03-08 06:46:53,645 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 132 of 132 statements. [2025-03-08 06:46:53,645 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 06:46:53,645 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 06:46:53,646 INFO L256 TraceCheckSpWp]: Trace formula consists of 424 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-08 06:46:53,648 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 06:46:53,701 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 71 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2025-03-08 06:46:53,701 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-08 06:46:53,701 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [318922837] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 06:46:53,701 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-08 06:46:53,701 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2025-03-08 06:46:53,701 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [775248023] [2025-03-08 06:46:53,701 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 06:46:53,702 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-08 06:46:53,702 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 06:46:53,702 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-08 06:46:53,702 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-08 06:46:53,702 INFO L87 Difference]: Start difference. First operand 5971 states and 8856 transitions. Second operand has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2025-03-08 06:46:53,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 06:46:53,831 INFO L93 Difference]: Finished difference Result 7955 states and 11520 transitions. [2025-03-08 06:46:53,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-08 06:46:53,831 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 132 [2025-03-08 06:46:53,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 06:46:53,850 INFO L225 Difference]: With dead ends: 7955 [2025-03-08 06:46:53,850 INFO L226 Difference]: Without dead ends: 5981 [2025-03-08 06:46:53,858 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-08 06:46:53,859 INFO L435 NwaCegarLoop]: 4168 mSDtfsCounter, 73 mSDsluCounter, 4080 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 8248 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-08 06:46:53,859 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 8248 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-08 06:46:53,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5981 states. [2025-03-08 06:46:54,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5981 to 5963. [2025-03-08 06:46:54,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5963 states, 5204 states have (on average 1.4913528055342045) internal successors, (7761), 5253 states have internal predecessors, (7761), 429 states have call successors, (429), 296 states have call predecessors, (429), 328 states have return successors, (598), 421 states have call predecessors, (598), 429 states have call successors, (598) [2025-03-08 06:46:54,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5963 states to 5963 states and 8788 transitions. [2025-03-08 06:46:54,052 INFO L78 Accepts]: Start accepts. Automaton has 5963 states and 8788 transitions. Word has length 132 [2025-03-08 06:46:54,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 06:46:54,052 INFO L471 AbstractCegarLoop]: Abstraction has 5963 states and 8788 transitions. [2025-03-08 06:46:54,053 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2025-03-08 06:46:54,053 INFO L276 IsEmpty]: Start isEmpty. Operand 5963 states and 8788 transitions. [2025-03-08 06:46:54,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2025-03-08 06:46:54,057 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 06:46:54,058 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 06:46:54,064 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2025-03-08 06:46:54,262 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 06:46:54,262 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 06:46:54,262 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 06:46:54,262 INFO L85 PathProgramCache]: Analyzing trace with hash 279732022, now seen corresponding path program 1 times [2025-03-08 06:46:54,263 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 06:46:54,263 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1678932956] [2025-03-08 06:46:54,263 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 06:46:54,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 06:46:54,268 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 133 statements into 1 equivalence classes. [2025-03-08 06:46:54,270 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 133 of 133 statements. [2025-03-08 06:46:54,270 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 06:46:54,270 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 06:46:54,325 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 59 trivial. 0 not checked. [2025-03-08 06:46:54,325 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 06:46:54,325 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1678932956] [2025-03-08 06:46:54,326 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1678932956] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 06:46:54,326 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [780057226] [2025-03-08 06:46:54,326 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 06:46:54,326 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 06:46:54,326 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 06:46:54,328 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-08 06:46:54,329 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2025-03-08 06:46:54,367 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 133 statements into 1 equivalence classes. [2025-03-08 06:46:54,397 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 133 of 133 statements. [2025-03-08 06:46:54,398 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 06:46:54,398 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 06:46:54,399 INFO L256 TraceCheckSpWp]: Trace formula consists of 426 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-03-08 06:46:54,401 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 06:46:54,478 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2025-03-08 06:46:54,480 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-08 06:46:54,480 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [780057226] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 06:46:54,480 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-08 06:46:54,481 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 8 [2025-03-08 06:46:54,481 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [931662806] [2025-03-08 06:46:54,481 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 06:46:54,481 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-08 06:46:54,481 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 06:46:54,482 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-08 06:46:54,482 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2025-03-08 06:46:54,482 INFO L87 Difference]: Start difference. First operand 5963 states and 8788 transitions. Second operand has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 2 states have call successors, (8), 3 states have call predecessors, (8), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2025-03-08 06:46:54,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 06:46:54,802 INFO L93 Difference]: Finished difference Result 9781 states and 13673 transitions. [2025-03-08 06:46:54,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-08 06:46:54,802 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 2 states have call successors, (8), 3 states have call predecessors, (8), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 133 [2025-03-08 06:46:54,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 06:46:54,818 INFO L225 Difference]: With dead ends: 9781 [2025-03-08 06:46:54,819 INFO L226 Difference]: Without dead ends: 5963 [2025-03-08 06:46:54,827 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2025-03-08 06:46:54,828 INFO L435 NwaCegarLoop]: 4044 mSDtfsCounter, 4091 mSDsluCounter, 8047 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4099 SdHoareTripleChecker+Valid, 12091 SdHoareTripleChecker+Invalid, 149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-08 06:46:54,828 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4099 Valid, 12091 Invalid, 149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-08 06:46:54,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5963 states. [2025-03-08 06:46:55,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5963 to 5963. [2025-03-08 06:46:55,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5963 states, 5204 states have (on average 1.4729054573405074) internal successors, (7665), 5253 states have internal predecessors, (7665), 429 states have call successors, (429), 296 states have call predecessors, (429), 328 states have return successors, (598), 421 states have call predecessors, (598), 429 states have call successors, (598) [2025-03-08 06:46:55,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5963 states to 5963 states and 8692 transitions. [2025-03-08 06:46:55,114 INFO L78 Accepts]: Start accepts. Automaton has 5963 states and 8692 transitions. Word has length 133 [2025-03-08 06:46:55,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 06:46:55,115 INFO L471 AbstractCegarLoop]: Abstraction has 5963 states and 8692 transitions. [2025-03-08 06:46:55,115 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 2 states have call successors, (8), 3 states have call predecessors, (8), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2025-03-08 06:46:55,115 INFO L276 IsEmpty]: Start isEmpty. Operand 5963 states and 8692 transitions. [2025-03-08 06:46:55,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2025-03-08 06:46:55,121 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 06:46:55,122 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 06:46:55,128 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2025-03-08 06:46:55,322 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 06:46:55,323 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 06:46:55,323 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 06:46:55,323 INFO L85 PathProgramCache]: Analyzing trace with hash -673469611, now seen corresponding path program 1 times [2025-03-08 06:46:55,323 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 06:46:55,323 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1030447658] [2025-03-08 06:46:55,323 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 06:46:55,323 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 06:46:55,331 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 133 statements into 1 equivalence classes. [2025-03-08 06:46:55,336 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 133 of 133 statements. [2025-03-08 06:46:55,337 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 06:46:55,337 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 06:46:55,393 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 59 trivial. 0 not checked. [2025-03-08 06:46:55,394 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 06:46:55,394 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1030447658] [2025-03-08 06:46:55,394 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1030447658] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 06:46:55,394 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [91297668] [2025-03-08 06:46:55,394 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 06:46:55,394 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 06:46:55,394 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 06:46:55,396 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-08 06:46:55,399 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2025-03-08 06:46:55,439 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 133 statements into 1 equivalence classes. [2025-03-08 06:46:55,470 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 133 of 133 statements. [2025-03-08 06:46:55,470 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 06:46:55,470 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 06:46:55,471 INFO L256 TraceCheckSpWp]: Trace formula consists of 423 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-03-08 06:46:55,473 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 06:46:55,534 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2025-03-08 06:46:55,534 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-08 06:46:55,534 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [91297668] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 06:46:55,534 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-08 06:46:55,534 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 8 [2025-03-08 06:46:55,534 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1799293452] [2025-03-08 06:46:55,534 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 06:46:55,534 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-08 06:46:55,534 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 06:46:55,535 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-08 06:46:55,535 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2025-03-08 06:46:55,535 INFO L87 Difference]: Start difference. First operand 5963 states and 8692 transitions. Second operand has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 2 states have call successors, (8), 3 states have call predecessors, (8), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2025-03-08 06:46:55,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 06:46:55,839 INFO L93 Difference]: Finished difference Result 9357 states and 13053 transitions. [2025-03-08 06:46:55,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-08 06:46:55,840 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 2 states have call successors, (8), 3 states have call predecessors, (8), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 133 [2025-03-08 06:46:55,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 06:46:55,857 INFO L225 Difference]: With dead ends: 9357 [2025-03-08 06:46:55,857 INFO L226 Difference]: Without dead ends: 6095 [2025-03-08 06:46:55,863 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2025-03-08 06:46:55,864 INFO L435 NwaCegarLoop]: 4042 mSDtfsCounter, 4129 mSDsluCounter, 8042 mSDsCounter, 0 mSdLazyCounter, 167 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4138 SdHoareTripleChecker+Valid, 12084 SdHoareTripleChecker+Invalid, 193 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 167 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-08 06:46:55,864 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4138 Valid, 12084 Invalid, 193 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 167 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-08 06:46:55,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6095 states. [2025-03-08 06:46:55,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6095 to 5125. [2025-03-08 06:46:55,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5125 states, 4550 states have (on average 1.4852747252747254) internal successors, (6758), 4579 states have internal predecessors, (6758), 329 states have call successors, (329), 228 states have call predecessors, (329), 244 states have return successors, (439), 321 states have call predecessors, (439), 329 states have call successors, (439) [2025-03-08 06:46:56,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5125 states to 5125 states and 7526 transitions. [2025-03-08 06:46:56,005 INFO L78 Accepts]: Start accepts. Automaton has 5125 states and 7526 transitions. Word has length 133 [2025-03-08 06:46:56,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 06:46:56,005 INFO L471 AbstractCegarLoop]: Abstraction has 5125 states and 7526 transitions. [2025-03-08 06:46:56,005 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 2 states have call successors, (8), 3 states have call predecessors, (8), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2025-03-08 06:46:56,005 INFO L276 IsEmpty]: Start isEmpty. Operand 5125 states and 7526 transitions. [2025-03-08 06:46:56,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2025-03-08 06:46:56,009 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 06:46:56,009 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 06:46:56,015 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2025-03-08 06:46:56,209 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2025-03-08 06:46:56,210 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 06:46:56,211 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 06:46:56,211 INFO L85 PathProgramCache]: Analyzing trace with hash 127065942, now seen corresponding path program 1 times [2025-03-08 06:46:56,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 06:46:56,211 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [929879667] [2025-03-08 06:46:56,211 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 06:46:56,211 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 06:46:56,217 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 133 statements into 1 equivalence classes. [2025-03-08 06:46:56,219 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 133 of 133 statements. [2025-03-08 06:46:56,219 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 06:46:56,219 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 06:46:56,258 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 59 trivial. 0 not checked. [2025-03-08 06:46:56,259 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 06:46:56,259 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [929879667] [2025-03-08 06:46:56,259 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [929879667] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 06:46:56,259 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [794362105] [2025-03-08 06:46:56,259 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 06:46:56,259 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 06:46:56,259 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 06:46:56,261 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-08 06:46:56,262 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2025-03-08 06:46:56,301 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 133 statements into 1 equivalence classes. [2025-03-08 06:46:56,332 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 133 of 133 statements. [2025-03-08 06:46:56,333 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 06:46:56,333 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 06:46:56,334 INFO L256 TraceCheckSpWp]: Trace formula consists of 420 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-08 06:46:56,336 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 06:46:56,407 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 54 proven. 16 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2025-03-08 06:46:56,407 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-08 06:46:56,469 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2025-03-08 06:46:56,469 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [794362105] provided 1 perfect and 1 imperfect interpolant sequences [2025-03-08 06:46:56,469 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2025-03-08 06:46:56,469 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5, 4] total 7 [2025-03-08 06:46:56,469 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1307954860] [2025-03-08 06:46:56,469 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 06:46:56,470 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-08 06:46:56,470 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 06:46:56,470 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-08 06:46:56,470 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2025-03-08 06:46:56,470 INFO L87 Difference]: Start difference. First operand 5125 states and 7526 transitions. Second operand has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 3 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2025-03-08 06:46:56,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 06:46:56,759 INFO L93 Difference]: Finished difference Result 8917 states and 12002 transitions. [2025-03-08 06:46:56,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-08 06:46:56,759 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 3 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 133 [2025-03-08 06:46:56,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 06:46:56,776 INFO L225 Difference]: With dead ends: 8917 [2025-03-08 06:46:56,776 INFO L226 Difference]: Without dead ends: 7507 [2025-03-08 06:46:56,779 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 269 GetRequests, 264 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2025-03-08 06:46:56,779 INFO L435 NwaCegarLoop]: 4186 mSDtfsCounter, 4165 mSDsluCounter, 4140 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4165 SdHoareTripleChecker+Valid, 8326 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-08 06:46:56,779 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4165 Valid, 8326 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-08 06:46:56,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7507 states. [2025-03-08 06:46:56,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7507 to 6256. [2025-03-08 06:46:56,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6256 states, 5473 states have (on average 1.4275534441805227) internal successors, (7813), 5506 states have internal predecessors, (7813), 449 states have call successors, (449), 308 states have call predecessors, (449), 332 states have return successors, (597), 445 states have call predecessors, (597), 449 states have call successors, (597) [2025-03-08 06:46:56,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6256 states to 6256 states and 8859 transitions. [2025-03-08 06:46:56,975 INFO L78 Accepts]: Start accepts. Automaton has 6256 states and 8859 transitions. Word has length 133 [2025-03-08 06:46:56,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 06:46:56,976 INFO L471 AbstractCegarLoop]: Abstraction has 6256 states and 8859 transitions. [2025-03-08 06:46:56,976 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 3 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2025-03-08 06:46:56,976 INFO L276 IsEmpty]: Start isEmpty. Operand 6256 states and 8859 transitions. [2025-03-08 06:46:56,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2025-03-08 06:46:56,982 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 06:46:56,982 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 06:46:56,989 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2025-03-08 06:46:57,182 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2025-03-08 06:46:57,183 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 06:46:57,184 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 06:46:57,184 INFO L85 PathProgramCache]: Analyzing trace with hash -1879713240, now seen corresponding path program 1 times [2025-03-08 06:46:57,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 06:46:57,184 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1989038600] [2025-03-08 06:46:57,184 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 06:46:57,184 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 06:46:57,190 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 154 statements into 1 equivalence classes. [2025-03-08 06:46:57,192 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 154 of 154 statements. [2025-03-08 06:46:57,192 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 06:46:57,192 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 06:46:57,239 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 97 trivial. 0 not checked. [2025-03-08 06:46:57,240 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 06:46:57,240 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1989038600] [2025-03-08 06:46:57,240 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1989038600] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 06:46:57,240 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2004501626] [2025-03-08 06:46:57,240 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 06:46:57,240 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 06:46:57,241 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 06:46:57,242 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-08 06:46:57,245 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2025-03-08 06:46:57,284 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 154 statements into 1 equivalence classes. [2025-03-08 06:46:57,323 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 154 of 154 statements. [2025-03-08 06:46:57,323 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 06:46:57,323 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 06:46:57,326 INFO L256 TraceCheckSpWp]: Trace formula consists of 466 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-08 06:46:57,327 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 06:46:57,342 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 74 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2025-03-08 06:46:57,343 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-08 06:46:57,343 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2004501626] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 06:46:57,343 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-08 06:46:57,343 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2025-03-08 06:46:57,344 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [160039431] [2025-03-08 06:46:57,344 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 06:46:57,344 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-08 06:46:57,344 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 06:46:57,345 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-08 06:46:57,345 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-08 06:46:57,345 INFO L87 Difference]: Start difference. First operand 6256 states and 8859 transitions. Second operand has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (14), 3 states have call predecessors, (14), 2 states have call successors, (14) [2025-03-08 06:46:57,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 06:46:57,537 INFO L93 Difference]: Finished difference Result 9761 states and 13032 transitions. [2025-03-08 06:46:57,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-08 06:46:57,537 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (14), 3 states have call predecessors, (14), 2 states have call successors, (14) Word has length 154 [2025-03-08 06:46:57,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 06:46:57,552 INFO L225 Difference]: With dead ends: 9761 [2025-03-08 06:46:57,552 INFO L226 Difference]: Without dead ends: 6333 [2025-03-08 06:46:57,557 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 158 GetRequests, 154 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-08 06:46:57,558 INFO L435 NwaCegarLoop]: 4103 mSDtfsCounter, 4069 mSDsluCounter, 114 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4069 SdHoareTripleChecker+Valid, 4217 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-08 06:46:57,558 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4069 Valid, 4217 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-08 06:46:57,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6333 states. [2025-03-08 06:46:57,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6333 to 6256. [2025-03-08 06:46:57,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6256 states, 5473 states have (on average 1.4204275534441806) internal successors, (7774), 5506 states have internal predecessors, (7774), 449 states have call successors, (449), 308 states have call predecessors, (449), 332 states have return successors, (597), 445 states have call predecessors, (597), 449 states have call successors, (597) [2025-03-08 06:46:57,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6256 states to 6256 states and 8820 transitions. [2025-03-08 06:46:57,749 INFO L78 Accepts]: Start accepts. Automaton has 6256 states and 8820 transitions. Word has length 154 [2025-03-08 06:46:57,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 06:46:57,749 INFO L471 AbstractCegarLoop]: Abstraction has 6256 states and 8820 transitions. [2025-03-08 06:46:57,749 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (14), 3 states have call predecessors, (14), 2 states have call successors, (14) [2025-03-08 06:46:57,750 INFO L276 IsEmpty]: Start isEmpty. Operand 6256 states and 8820 transitions. [2025-03-08 06:46:57,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2025-03-08 06:46:57,754 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 06:46:57,755 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 06:46:57,761 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2025-03-08 06:46:57,959 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2025-03-08 06:46:57,959 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 06:46:57,959 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 06:46:57,959 INFO L85 PathProgramCache]: Analyzing trace with hash 223910532, now seen corresponding path program 1 times [2025-03-08 06:46:57,959 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 06:46:57,959 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [784790112] [2025-03-08 06:46:57,960 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 06:46:57,960 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 06:46:57,966 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 154 statements into 1 equivalence classes. [2025-03-08 06:46:57,967 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 154 of 154 statements. [2025-03-08 06:46:57,967 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 06:46:57,967 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 06:46:57,982 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 119 trivial. 0 not checked. [2025-03-08 06:46:57,982 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 06:46:57,982 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [784790112] [2025-03-08 06:46:57,982 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [784790112] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 06:46:57,982 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 06:46:57,982 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-08 06:46:57,982 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1234340621] [2025-03-08 06:46:57,982 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 06:46:57,983 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-08 06:46:57,983 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 06:46:57,983 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-08 06:46:57,983 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-08 06:46:57,983 INFO L87 Difference]: Start difference. First operand 6256 states and 8820 transitions. Second operand has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 3 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2025-03-08 06:46:58,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 06:46:58,180 INFO L93 Difference]: Finished difference Result 9686 states and 12831 transitions. [2025-03-08 06:46:58,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-08 06:46:58,181 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 3 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 154 [2025-03-08 06:46:58,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 06:46:58,196 INFO L225 Difference]: With dead ends: 9686 [2025-03-08 06:46:58,196 INFO L226 Difference]: Without dead ends: 5565 [2025-03-08 06:46:58,203 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-08 06:46:58,203 INFO L435 NwaCegarLoop]: 4088 mSDtfsCounter, 125 mSDsluCounter, 3958 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 8046 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-08 06:46:58,203 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [125 Valid, 8046 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-08 06:46:58,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5565 states. [2025-03-08 06:46:58,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5565 to 5565. [2025-03-08 06:46:58,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5565 states, 4924 states have (on average 1.4524776604386678) internal successors, (7152), 4951 states have internal predecessors, (7152), 365 states have call successors, (365), 254 states have call predecessors, (365), 274 states have return successors, (473), 361 states have call predecessors, (473), 365 states have call successors, (473) [2025-03-08 06:46:58,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5565 states to 5565 states and 7990 transitions. [2025-03-08 06:46:58,467 INFO L78 Accepts]: Start accepts. Automaton has 5565 states and 7990 transitions. Word has length 154 [2025-03-08 06:46:58,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 06:46:58,467 INFO L471 AbstractCegarLoop]: Abstraction has 5565 states and 7990 transitions. [2025-03-08 06:46:58,468 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 3 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2025-03-08 06:46:58,468 INFO L276 IsEmpty]: Start isEmpty. Operand 5565 states and 7990 transitions. [2025-03-08 06:46:58,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2025-03-08 06:46:58,472 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 06:46:58,472 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 06:46:58,472 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2025-03-08 06:46:58,472 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 06:46:58,473 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 06:46:58,473 INFO L85 PathProgramCache]: Analyzing trace with hash -1235541543, now seen corresponding path program 1 times [2025-03-08 06:46:58,473 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 06:46:58,473 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1846414390] [2025-03-08 06:46:58,473 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 06:46:58,473 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 06:46:58,478 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 156 statements into 1 equivalence classes. [2025-03-08 06:46:58,480 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 156 of 156 statements. [2025-03-08 06:46:58,480 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 06:46:58,480 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 06:46:58,524 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 97 trivial. 0 not checked. [2025-03-08 06:46:58,524 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 06:46:58,524 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1846414390] [2025-03-08 06:46:58,524 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1846414390] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 06:46:58,524 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [53816653] [2025-03-08 06:46:58,525 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 06:46:58,525 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 06:46:58,525 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 06:46:58,528 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-08 06:46:58,530 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2025-03-08 06:46:58,570 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 156 statements into 1 equivalence classes. [2025-03-08 06:46:58,607 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 156 of 156 statements. [2025-03-08 06:46:58,607 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 06:46:58,607 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 06:46:58,608 INFO L256 TraceCheckSpWp]: Trace formula consists of 472 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-08 06:46:58,610 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 06:46:58,636 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 87 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2025-03-08 06:46:58,637 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-08 06:46:58,637 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [53816653] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 06:46:58,637 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-08 06:46:58,637 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [5] total 9 [2025-03-08 06:46:58,637 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [59106004] [2025-03-08 06:46:58,637 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 06:46:58,637 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-08 06:46:58,638 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 06:46:58,638 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-08 06:46:58,638 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2025-03-08 06:46:58,638 INFO L87 Difference]: Start difference. First operand 5565 states and 7990 transitions. Second operand has 6 states, 6 states have (on average 17.333333333333332) internal successors, (104), 5 states have internal predecessors, (104), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (15), 3 states have call predecessors, (15), 2 states have call successors, (15) [2025-03-08 06:46:58,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 06:46:58,767 INFO L93 Difference]: Finished difference Result 7941 states and 10762 transitions. [2025-03-08 06:46:58,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-08 06:46:58,767 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 17.333333333333332) internal successors, (104), 5 states have internal predecessors, (104), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (15), 3 states have call predecessors, (15), 2 states have call successors, (15) Word has length 156 [2025-03-08 06:46:58,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 06:46:58,778 INFO L225 Difference]: With dead ends: 7941 [2025-03-08 06:46:58,779 INFO L226 Difference]: Without dead ends: 4513 [2025-03-08 06:46:58,783 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 153 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2025-03-08 06:46:58,784 INFO L435 NwaCegarLoop]: 4086 mSDtfsCounter, 0 mSDsluCounter, 16335 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 20421 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-08 06:46:58,784 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 20421 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-08 06:46:58,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4513 states. [2025-03-08 06:46:58,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4513 to 4481. [2025-03-08 06:46:58,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4481 states, 4084 states have (on average 1.5124877571008815) internal successors, (6177), 4093 states have internal predecessors, (6177), 217 states have call successors, (217), 151 states have call predecessors, (217), 178 states have return successors, (297), 236 states have call predecessors, (297), 217 states have call successors, (297) [2025-03-08 06:46:58,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4481 states to 4481 states and 6691 transitions. [2025-03-08 06:46:58,953 INFO L78 Accepts]: Start accepts. Automaton has 4481 states and 6691 transitions. Word has length 156 [2025-03-08 06:46:58,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 06:46:58,954 INFO L471 AbstractCegarLoop]: Abstraction has 4481 states and 6691 transitions. [2025-03-08 06:46:58,954 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 17.333333333333332) internal successors, (104), 5 states have internal predecessors, (104), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (15), 3 states have call predecessors, (15), 2 states have call successors, (15) [2025-03-08 06:46:58,954 INFO L276 IsEmpty]: Start isEmpty. Operand 4481 states and 6691 transitions. [2025-03-08 06:46:58,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2025-03-08 06:46:58,957 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 06:46:58,957 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 06:46:58,964 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2025-03-08 06:46:59,158 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2025-03-08 06:46:59,159 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 06:46:59,159 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 06:46:59,160 INFO L85 PathProgramCache]: Analyzing trace with hash 532402855, now seen corresponding path program 1 times [2025-03-08 06:46:59,160 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 06:46:59,160 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1985466846] [2025-03-08 06:46:59,160 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 06:46:59,160 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 06:46:59,166 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 160 statements into 1 equivalence classes. [2025-03-08 06:46:59,167 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 160 of 160 statements. [2025-03-08 06:46:59,167 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 06:46:59,167 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 06:46:59,208 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 97 trivial. 0 not checked. [2025-03-08 06:46:59,208 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 06:46:59,209 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1985466846] [2025-03-08 06:46:59,209 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1985466846] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 06:46:59,209 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [619331810] [2025-03-08 06:46:59,209 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 06:46:59,209 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 06:46:59,209 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 06:46:59,211 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-08 06:46:59,212 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2025-03-08 06:46:59,252 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 160 statements into 1 equivalence classes. [2025-03-08 06:46:59,286 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 160 of 160 statements. [2025-03-08 06:46:59,287 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 06:46:59,287 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 06:46:59,288 INFO L256 TraceCheckSpWp]: Trace formula consists of 481 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-03-08 06:46:59,290 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 06:46:59,308 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2025-03-08 06:46:59,308 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-08 06:46:59,308 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [619331810] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 06:46:59,308 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-08 06:46:59,308 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 8 [2025-03-08 06:46:59,309 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1777567789] [2025-03-08 06:46:59,309 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 06:46:59,309 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-08 06:46:59,309 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 06:46:59,309 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-08 06:46:59,309 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2025-03-08 06:46:59,310 INFO L87 Difference]: Start difference. First operand 4481 states and 6691 transitions. Second operand has 5 states, 5 states have (on average 18.6) internal successors, (93), 5 states have internal predecessors, (93), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2025-03-08 06:46:59,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 06:46:59,380 INFO L93 Difference]: Finished difference Result 5494 states and 7878 transitions. [2025-03-08 06:46:59,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-08 06:46:59,381 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.6) internal successors, (93), 5 states have internal predecessors, (93), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 160 [2025-03-08 06:46:59,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 06:46:59,388 INFO L225 Difference]: With dead ends: 5494 [2025-03-08 06:46:59,388 INFO L226 Difference]: Without dead ends: 3186 [2025-03-08 06:46:59,391 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 164 GetRequests, 158 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2025-03-08 06:46:59,391 INFO L435 NwaCegarLoop]: 4086 mSDtfsCounter, 0 mSDsluCounter, 12252 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 16338 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-08 06:46:59,391 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 16338 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-08 06:46:59,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3186 states. [2025-03-08 06:46:59,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3186 to 3186. [2025-03-08 06:46:59,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3186 states, 2999 states have (on average 1.6415471823941314) internal successors, (4923), 3007 states have internal predecessors, (4923), 95 states have call successors, (95), 70 states have call predecessors, (95), 90 states have return successors, (122), 108 states have call predecessors, (122), 95 states have call successors, (122) [2025-03-08 06:46:59,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3186 states to 3186 states and 5140 transitions. [2025-03-08 06:46:59,452 INFO L78 Accepts]: Start accepts. Automaton has 3186 states and 5140 transitions. Word has length 160 [2025-03-08 06:46:59,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 06:46:59,452 INFO L471 AbstractCegarLoop]: Abstraction has 3186 states and 5140 transitions. [2025-03-08 06:46:59,452 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.6) internal successors, (93), 5 states have internal predecessors, (93), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2025-03-08 06:46:59,452 INFO L276 IsEmpty]: Start isEmpty. Operand 3186 states and 5140 transitions. [2025-03-08 06:46:59,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2025-03-08 06:46:59,454 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 06:46:59,454 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 06:46:59,460 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2025-03-08 06:46:59,654 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2025-03-08 06:46:59,655 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 06:46:59,657 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 06:46:59,657 INFO L85 PathProgramCache]: Analyzing trace with hash 507238630, now seen corresponding path program 1 times [2025-03-08 06:46:59,657 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 06:46:59,657 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1881239611] [2025-03-08 06:46:59,657 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 06:46:59,657 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 06:46:59,662 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 160 statements into 1 equivalence classes. [2025-03-08 06:46:59,664 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 160 of 160 statements. [2025-03-08 06:46:59,664 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 06:46:59,664 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 06:46:59,699 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 97 trivial. 0 not checked. [2025-03-08 06:46:59,700 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 06:46:59,700 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1881239611] [2025-03-08 06:46:59,700 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1881239611] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 06:46:59,700 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1951517208] [2025-03-08 06:46:59,700 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 06:46:59,700 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 06:46:59,700 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 06:46:59,702 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-08 06:46:59,704 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2025-03-08 06:46:59,743 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 160 statements into 1 equivalence classes. [2025-03-08 06:46:59,780 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 160 of 160 statements. [2025-03-08 06:46:59,780 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 06:46:59,780 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 06:46:59,782 INFO L256 TraceCheckSpWp]: Trace formula consists of 478 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-03-08 06:46:59,783 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 06:46:59,791 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 68 proven. 0 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2025-03-08 06:46:59,791 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-08 06:46:59,791 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1951517208] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 06:46:59,791 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-08 06:46:59,791 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 5 [2025-03-08 06:46:59,791 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [857794997] [2025-03-08 06:46:59,792 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 06:46:59,792 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-08 06:46:59,793 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 06:46:59,793 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-08 06:46:59,793 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-08 06:46:59,793 INFO L87 Difference]: Start difference. First operand 3186 states and 5140 transitions. Second operand has 5 states, 5 states have (on average 19.6) internal successors, (98), 5 states have internal predecessors, (98), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2025-03-08 06:46:59,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 06:46:59,858 INFO L93 Difference]: Finished difference Result 3675 states and 5697 transitions. [2025-03-08 06:46:59,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-08 06:46:59,858 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 5 states have internal predecessors, (98), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 160 [2025-03-08 06:46:59,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 06:46:59,867 INFO L225 Difference]: With dead ends: 3675 [2025-03-08 06:46:59,867 INFO L226 Difference]: Without dead ends: 2123 [2025-03-08 06:46:59,869 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 164 GetRequests, 161 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-08 06:46:59,870 INFO L435 NwaCegarLoop]: 4084 mSDtfsCounter, 0 mSDsluCounter, 12246 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 16330 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-08 06:46:59,870 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 16330 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-08 06:46:59,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2123 states. [2025-03-08 06:46:59,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2123 to 2123. [2025-03-08 06:46:59,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2123 states, 2122 states have (on average 1.8656927426955703) internal successors, (3959), 2122 states have internal predecessors, (3959), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 06:46:59,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2123 states to 2123 states and 3959 transitions. [2025-03-08 06:46:59,890 INFO L78 Accepts]: Start accepts. Automaton has 2123 states and 3959 transitions. Word has length 160 [2025-03-08 06:46:59,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 06:46:59,891 INFO L471 AbstractCegarLoop]: Abstraction has 2123 states and 3959 transitions. [2025-03-08 06:46:59,891 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 5 states have internal predecessors, (98), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2025-03-08 06:46:59,891 INFO L276 IsEmpty]: Start isEmpty. Operand 2123 states and 3959 transitions. [2025-03-08 06:46:59,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1653 [2025-03-08 06:46:59,924 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 06:46:59,924 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 06:46:59,931 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2025-03-08 06:47:00,129 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 06:47:00,130 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 06:47:00,131 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 06:47:00,131 INFO L85 PathProgramCache]: Analyzing trace with hash -1095990614, now seen corresponding path program 1 times [2025-03-08 06:47:00,131 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 06:47:00,131 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [149015517] [2025-03-08 06:47:00,131 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 06:47:00,132 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 06:47:00,249 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1652 statements into 1 equivalence classes. [2025-03-08 06:47:00,358 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1652 of 1652 statements. [2025-03-08 06:47:00,358 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 06:47:00,358 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 06:47:01,307 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 06:47:01,307 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 06:47:01,308 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [149015517] [2025-03-08 06:47:01,308 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [149015517] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 06:47:01,308 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 06:47:01,308 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-08 06:47:01,308 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [260782724] [2025-03-08 06:47:01,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 06:47:01,310 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-08 06:47:01,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 06:47:01,311 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-08 06:47:01,311 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-08 06:47:01,311 INFO L87 Difference]: Start difference. First operand 2123 states and 3959 transitions. Second operand has 3 states, 3 states have (on average 550.6666666666666) internal successors, (1652), 2 states have internal predecessors, (1652), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 06:47:06,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 06:47:06,235 INFO L93 Difference]: Finished difference Result 6058 states and 11375 transitions. [2025-03-08 06:47:06,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-08 06:47:06,236 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 550.6666666666666) internal successors, (1652), 2 states have internal predecessors, (1652), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1652 [2025-03-08 06:47:06,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 06:47:06,249 INFO L225 Difference]: With dead ends: 6058 [2025-03-08 06:47:06,249 INFO L226 Difference]: Without dead ends: 3938 [2025-03-08 06:47:06,253 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-08 06:47:06,253 INFO L435 NwaCegarLoop]: 1258 mSDtfsCounter, 615 mSDsluCounter, 154 mSDsCounter, 0 mSdLazyCounter, 4951 mSolverCounterSat, 2591 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 615 SdHoareTripleChecker+Valid, 1412 SdHoareTripleChecker+Invalid, 7542 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2591 IncrementalHoareTripleChecker+Valid, 4951 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2025-03-08 06:47:06,253 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [615 Valid, 1412 Invalid, 7542 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2591 Valid, 4951 Invalid, 0 Unknown, 0 Unchecked, 4.8s Time] [2025-03-08 06:47:06,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3938 states. [2025-03-08 06:47:06,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3938 to 3922. [2025-03-08 06:47:06,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3922 states, 3921 states have (on average 1.7309359857179292) internal successors, (6787), 3921 states have internal predecessors, (6787), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 06:47:06,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3922 states to 3922 states and 6787 transitions. [2025-03-08 06:47:06,301 INFO L78 Accepts]: Start accepts. Automaton has 3922 states and 6787 transitions. Word has length 1652 [2025-03-08 06:47:06,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 06:47:06,304 INFO L471 AbstractCegarLoop]: Abstraction has 3922 states and 6787 transitions. [2025-03-08 06:47:06,304 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 550.6666666666666) internal successors, (1652), 2 states have internal predecessors, (1652), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 06:47:06,304 INFO L276 IsEmpty]: Start isEmpty. Operand 3922 states and 6787 transitions. [2025-03-08 06:47:06,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1664 [2025-03-08 06:47:06,361 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 06:47:06,361 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 06:47:06,361 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2025-03-08 06:47:06,362 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 06:47:06,362 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 06:47:06,363 INFO L85 PathProgramCache]: Analyzing trace with hash 400963184, now seen corresponding path program 1 times [2025-03-08 06:47:06,363 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 06:47:06,363 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1340909186] [2025-03-08 06:47:06,363 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 06:47:06,363 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 06:47:06,520 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1663 statements into 1 equivalence classes. [2025-03-08 06:47:06,530 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1663 of 1663 statements. [2025-03-08 06:47:06,530 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 06:47:06,530 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 06:47:07,044 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 06:47:07,044 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 06:47:07,044 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1340909186] [2025-03-08 06:47:07,044 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1340909186] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 06:47:07,044 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 06:47:07,044 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-08 06:47:07,044 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [321720347] [2025-03-08 06:47:07,044 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 06:47:07,046 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-08 06:47:07,046 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 06:47:07,047 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-08 06:47:07,047 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-08 06:47:07,047 INFO L87 Difference]: Start difference. First operand 3922 states and 6787 transitions. Second operand has 3 states, 3 states have (on average 554.3333333333334) internal successors, (1663), 2 states have internal predecessors, (1663), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 06:47:11,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 06:47:11,615 INFO L93 Difference]: Finished difference Result 11252 states and 19642 transitions. [2025-03-08 06:47:11,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-08 06:47:11,615 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 554.3333333333334) internal successors, (1663), 2 states have internal predecessors, (1663), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1663 [2025-03-08 06:47:11,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 06:47:11,629 INFO L225 Difference]: With dead ends: 11252 [2025-03-08 06:47:11,629 INFO L226 Difference]: Without dead ends: 7333 [2025-03-08 06:47:11,634 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-08 06:47:11,635 INFO L435 NwaCegarLoop]: 1093 mSDtfsCounter, 3188 mSDsluCounter, 87 mSDsCounter, 0 mSdLazyCounter, 4773 mSolverCounterSat, 2134 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3188 SdHoareTripleChecker+Valid, 1180 SdHoareTripleChecker+Invalid, 6907 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2134 IncrementalHoareTripleChecker+Valid, 4773 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2025-03-08 06:47:11,635 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3188 Valid, 1180 Invalid, 6907 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2134 Valid, 4773 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2025-03-08 06:47:11,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7333 states. [2025-03-08 06:47:11,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7333 to 7333. [2025-03-08 06:47:11,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7333 states, 7332 states have (on average 1.6518003273322421) internal successors, (12111), 7332 states have internal predecessors, (12111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 06:47:11,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7333 states to 7333 states and 12111 transitions. [2025-03-08 06:47:11,712 INFO L78 Accepts]: Start accepts. Automaton has 7333 states and 12111 transitions. Word has length 1663 [2025-03-08 06:47:11,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 06:47:11,713 INFO L471 AbstractCegarLoop]: Abstraction has 7333 states and 12111 transitions. [2025-03-08 06:47:11,713 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 554.3333333333334) internal successors, (1663), 2 states have internal predecessors, (1663), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 06:47:11,713 INFO L276 IsEmpty]: Start isEmpty. Operand 7333 states and 12111 transitions. [2025-03-08 06:47:11,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1742 [2025-03-08 06:47:11,734 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 06:47:11,735 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 06:47:11,735 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2025-03-08 06:47:11,736 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 06:47:11,737 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 06:47:11,737 INFO L85 PathProgramCache]: Analyzing trace with hash 44185147, now seen corresponding path program 1 times [2025-03-08 06:47:11,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 06:47:11,737 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1160522974] [2025-03-08 06:47:11,737 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 06:47:11,738 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 06:47:11,867 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1741 statements into 1 equivalence classes. [2025-03-08 06:47:11,879 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1741 of 1741 statements. [2025-03-08 06:47:11,880 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 06:47:11,880 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 06:47:12,538 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 88 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 06:47:12,539 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 06:47:12,539 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1160522974] [2025-03-08 06:47:12,539 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1160522974] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 06:47:12,539 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 06:47:12,539 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-08 06:47:12,539 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [124555986] [2025-03-08 06:47:12,539 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 06:47:12,541 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-08 06:47:12,541 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 06:47:12,542 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-08 06:47:12,542 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-08 06:47:12,542 INFO L87 Difference]: Start difference. First operand 7333 states and 12111 transitions. Second operand has 3 states, 3 states have (on average 580.3333333333334) internal successors, (1741), 2 states have internal predecessors, (1741), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 06:47:16,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 06:47:16,863 INFO L93 Difference]: Finished difference Result 18101 states and 29447 transitions. [2025-03-08 06:47:16,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-08 06:47:16,863 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 580.3333333333334) internal successors, (1741), 2 states have internal predecessors, (1741), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1741 [2025-03-08 06:47:16,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 06:47:16,884 INFO L225 Difference]: With dead ends: 18101 [2025-03-08 06:47:16,884 INFO L226 Difference]: Without dead ends: 10771 [2025-03-08 06:47:16,893 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-08 06:47:16,895 INFO L435 NwaCegarLoop]: 1208 mSDtfsCounter, 2029 mSDsluCounter, 170 mSDsCounter, 0 mSdLazyCounter, 5633 mSolverCounterSat, 1377 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2029 SdHoareTripleChecker+Valid, 1378 SdHoareTripleChecker+Invalid, 7010 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1377 IncrementalHoareTripleChecker+Valid, 5633 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2025-03-08 06:47:16,896 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2029 Valid, 1378 Invalid, 7010 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1377 Valid, 5633 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2025-03-08 06:47:16,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10771 states. [2025-03-08 06:47:16,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10771 to 10750. [2025-03-08 06:47:16,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10750 states, 10749 states have (on average 1.4301795515861941) internal successors, (15373), 10749 states have internal predecessors, (15373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 06:47:16,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10750 states to 10750 states and 15373 transitions. [2025-03-08 06:47:16,989 INFO L78 Accepts]: Start accepts. Automaton has 10750 states and 15373 transitions. Word has length 1741 [2025-03-08 06:47:16,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 06:47:16,990 INFO L471 AbstractCegarLoop]: Abstraction has 10750 states and 15373 transitions. [2025-03-08 06:47:16,990 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 580.3333333333334) internal successors, (1741), 2 states have internal predecessors, (1741), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 06:47:16,990 INFO L276 IsEmpty]: Start isEmpty. Operand 10750 states and 15373 transitions. [2025-03-08 06:47:17,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1747 [2025-03-08 06:47:17,012 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 06:47:17,013 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 06:47:17,013 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2025-03-08 06:47:17,013 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 06:47:17,014 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 06:47:17,014 INFO L85 PathProgramCache]: Analyzing trace with hash 625705974, now seen corresponding path program 1 times [2025-03-08 06:47:17,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 06:47:17,015 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [146738594] [2025-03-08 06:47:17,015 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 06:47:17,015 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 06:47:17,135 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1746 statements into 1 equivalence classes. [2025-03-08 06:47:17,142 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1746 of 1746 statements. [2025-03-08 06:47:17,143 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 06:47:17,143 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 06:47:17,634 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 89 trivial. 0 not checked. [2025-03-08 06:47:17,634 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 06:47:17,634 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [146738594] [2025-03-08 06:47:17,634 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [146738594] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 06:47:17,634 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 06:47:17,635 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-08 06:47:17,635 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [717104437] [2025-03-08 06:47:17,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 06:47:17,637 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-08 06:47:17,637 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 06:47:17,638 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-08 06:47:17,638 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-08 06:47:17,638 INFO L87 Difference]: Start difference. First operand 10750 states and 15373 transitions. Second operand has 3 states, 3 states have (on average 552.6666666666666) internal successors, (1658), 2 states have internal predecessors, (1658), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 06:47:21,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 06:47:21,926 INFO L93 Difference]: Finished difference Result 31702 states and 45380 transitions. [2025-03-08 06:47:21,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-08 06:47:21,926 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 552.6666666666666) internal successors, (1658), 2 states have internal predecessors, (1658), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1746 [2025-03-08 06:47:21,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 06:47:21,957 INFO L225 Difference]: With dead ends: 31702 [2025-03-08 06:47:21,957 INFO L226 Difference]: Without dead ends: 20955 [2025-03-08 06:47:21,973 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-08 06:47:21,974 INFO L435 NwaCegarLoop]: 1816 mSDtfsCounter, 2455 mSDsluCounter, 147 mSDsCounter, 0 mSdLazyCounter, 4507 mSolverCounterSat, 2370 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2455 SdHoareTripleChecker+Valid, 1963 SdHoareTripleChecker+Invalid, 6877 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2370 IncrementalHoareTripleChecker+Valid, 4507 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2025-03-08 06:47:21,974 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2455 Valid, 1963 Invalid, 6877 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2370 Valid, 4507 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2025-03-08 06:47:21,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20955 states. [2025-03-08 06:47:22,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20955 to 20952. [2025-03-08 06:47:22,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20952 states, 20951 states have (on average 1.3149253018948976) internal successors, (27549), 20951 states have internal predecessors, (27549), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 06:47:22,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20952 states to 20952 states and 27549 transitions. [2025-03-08 06:47:22,265 INFO L78 Accepts]: Start accepts. Automaton has 20952 states and 27549 transitions. Word has length 1746 [2025-03-08 06:47:22,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 06:47:22,266 INFO L471 AbstractCegarLoop]: Abstraction has 20952 states and 27549 transitions. [2025-03-08 06:47:22,266 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 552.6666666666666) internal successors, (1658), 2 states have internal predecessors, (1658), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 06:47:22,266 INFO L276 IsEmpty]: Start isEmpty. Operand 20952 states and 27549 transitions. [2025-03-08 06:47:22,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1760 [2025-03-08 06:47:22,299 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 06:47:22,299 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 06:47:22,299 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2025-03-08 06:47:22,300 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 06:47:22,300 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 06:47:22,301 INFO L85 PathProgramCache]: Analyzing trace with hash -121862277, now seen corresponding path program 1 times [2025-03-08 06:47:22,301 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 06:47:22,301 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [159965019] [2025-03-08 06:47:22,301 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 06:47:22,301 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 06:47:22,433 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1759 statements into 1 equivalence classes. [2025-03-08 06:47:22,448 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1759 of 1759 statements. [2025-03-08 06:47:22,449 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 06:47:22,449 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 06:47:23,396 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 123 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 06:47:23,396 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 06:47:23,396 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [159965019] [2025-03-08 06:47:23,396 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [159965019] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 06:47:23,397 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 06:47:23,397 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-08 06:47:23,397 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1031950759] [2025-03-08 06:47:23,397 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 06:47:23,398 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-08 06:47:23,398 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 06:47:23,399 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-08 06:47:23,399 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-08 06:47:23,399 INFO L87 Difference]: Start difference. First operand 20952 states and 27549 transitions. Second operand has 3 states, 3 states have (on average 586.3333333333334) internal successors, (1759), 3 states have internal predecessors, (1759), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 06:47:28,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 06:47:28,176 INFO L93 Difference]: Finished difference Result 62358 states and 82021 transitions. [2025-03-08 06:47:28,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-08 06:47:28,177 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 586.3333333333334) internal successors, (1759), 3 states have internal predecessors, (1759), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1759 [2025-03-08 06:47:28,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 06:47:28,226 INFO L225 Difference]: With dead ends: 62358 [2025-03-08 06:47:28,226 INFO L226 Difference]: Without dead ends: 41409 [2025-03-08 06:47:28,240 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-08 06:47:28,240 INFO L435 NwaCegarLoop]: 3628 mSDtfsCounter, 1787 mSDsluCounter, 244 mSDsCounter, 0 mSdLazyCounter, 5286 mSolverCounterSat, 2032 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1787 SdHoareTripleChecker+Valid, 3872 SdHoareTripleChecker+Invalid, 7318 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2032 IncrementalHoareTripleChecker+Valid, 5286 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2025-03-08 06:47:28,240 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1787 Valid, 3872 Invalid, 7318 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2032 Valid, 5286 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2025-03-08 06:47:28,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41409 states. [2025-03-08 06:47:28,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41409 to 41343. [2025-03-08 06:47:28,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41343 states, 41342 states have (on average 1.2299114701756084) internal successors, (50847), 41342 states have internal predecessors, (50847), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 06:47:28,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41343 states to 41343 states and 50847 transitions. [2025-03-08 06:47:28,610 INFO L78 Accepts]: Start accepts. Automaton has 41343 states and 50847 transitions. Word has length 1759 [2025-03-08 06:47:28,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 06:47:28,611 INFO L471 AbstractCegarLoop]: Abstraction has 41343 states and 50847 transitions. [2025-03-08 06:47:28,611 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 586.3333333333334) internal successors, (1759), 3 states have internal predecessors, (1759), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 06:47:28,611 INFO L276 IsEmpty]: Start isEmpty. Operand 41343 states and 50847 transitions. [2025-03-08 06:47:28,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1762 [2025-03-08 06:47:28,656 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 06:47:28,657 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 06:47:28,657 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2025-03-08 06:47:28,657 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 06:47:28,658 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 06:47:28,659 INFO L85 PathProgramCache]: Analyzing trace with hash -1882537797, now seen corresponding path program 1 times [2025-03-08 06:47:28,659 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 06:47:28,659 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1200467117] [2025-03-08 06:47:28,659 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 06:47:28,659 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 06:47:28,788 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1761 statements into 1 equivalence classes. [2025-03-08 06:47:28,852 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1761 of 1761 statements. [2025-03-08 06:47:28,853 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 06:47:28,853 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 06:47:29,706 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 108 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 06:47:29,707 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 06:47:29,707 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1200467117] [2025-03-08 06:47:29,707 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1200467117] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 06:47:29,707 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 06:47:29,707 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-08 06:47:29,707 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [227776514] [2025-03-08 06:47:29,707 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 06:47:29,708 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-08 06:47:29,708 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 06:47:29,709 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-08 06:47:29,709 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-08 06:47:29,709 INFO L87 Difference]: Start difference. First operand 41343 states and 50847 transitions. Second operand has 3 states, 3 states have (on average 587.0) internal successors, (1761), 3 states have internal predecessors, (1761), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 06:47:35,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 06:47:35,203 INFO L93 Difference]: Finished difference Result 103159 states and 128654 transitions. [2025-03-08 06:47:35,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-08 06:47:35,203 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 587.0) internal successors, (1761), 3 states have internal predecessors, (1761), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1761 [2025-03-08 06:47:35,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 06:47:35,301 INFO L225 Difference]: With dead ends: 103159 [2025-03-08 06:47:35,301 INFO L226 Difference]: Without dead ends: 61819 [2025-03-08 06:47:35,341 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-08 06:47:35,341 INFO L435 NwaCegarLoop]: 3232 mSDtfsCounter, 458 mSDsluCounter, 140 mSDsCounter, 0 mSdLazyCounter, 6286 mSolverCounterSat, 1371 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 458 SdHoareTripleChecker+Valid, 3372 SdHoareTripleChecker+Invalid, 7657 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1371 IncrementalHoareTripleChecker+Valid, 6286 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2025-03-08 06:47:35,341 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [458 Valid, 3372 Invalid, 7657 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1371 Valid, 6286 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time] [2025-03-08 06:47:35,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61819 states. [2025-03-08 06:47:35,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61819 to 61732. [2025-03-08 06:47:35,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61732 states, 61731 states have (on average 1.240414054526899) internal successors, (76572), 61731 states have internal predecessors, (76572), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 06:47:35,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61732 states to 61732 states and 76572 transitions. [2025-03-08 06:47:35,960 INFO L78 Accepts]: Start accepts. Automaton has 61732 states and 76572 transitions. Word has length 1761 [2025-03-08 06:47:35,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 06:47:35,961 INFO L471 AbstractCegarLoop]: Abstraction has 61732 states and 76572 transitions. [2025-03-08 06:47:35,961 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 587.0) internal successors, (1761), 3 states have internal predecessors, (1761), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 06:47:35,961 INFO L276 IsEmpty]: Start isEmpty. Operand 61732 states and 76572 transitions. [2025-03-08 06:47:36,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1771 [2025-03-08 06:47:36,013 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 06:47:36,013 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 06:47:36,014 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2025-03-08 06:47:36,014 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 06:47:36,015 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 06:47:36,015 INFO L85 PathProgramCache]: Analyzing trace with hash -508749220, now seen corresponding path program 1 times [2025-03-08 06:47:36,015 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 06:47:36,015 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1882948003] [2025-03-08 06:47:36,016 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 06:47:36,016 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 06:47:36,147 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1770 statements into 1 equivalence classes. [2025-03-08 06:47:36,156 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1770 of 1770 statements. [2025-03-08 06:47:36,156 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 06:47:36,156 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 06:47:36,891 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 58 proven. 0 refuted. 0 times theorem prover too weak. 89 trivial. 0 not checked. [2025-03-08 06:47:36,891 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 06:47:36,891 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1882948003] [2025-03-08 06:47:36,891 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1882948003] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 06:47:36,891 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 06:47:36,891 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-08 06:47:36,891 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1624805312] [2025-03-08 06:47:36,891 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 06:47:36,893 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-08 06:47:36,893 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 06:47:36,894 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-08 06:47:36,894 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-08 06:47:36,894 INFO L87 Difference]: Start difference. First operand 61732 states and 76572 transitions. Second operand has 3 states, 3 states have (on average 560.6666666666666) internal successors, (1682), 3 states have internal predecessors, (1682), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 06:47:41,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 06:47:41,876 INFO L93 Difference]: Finished difference Result 172717 states and 213494 transitions. [2025-03-08 06:47:41,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-08 06:47:41,876 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 560.6666666666666) internal successors, (1682), 3 states have internal predecessors, (1682), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1770 [2025-03-08 06:47:41,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 06:47:42,024 INFO L225 Difference]: With dead ends: 172717 [2025-03-08 06:47:42,024 INFO L226 Difference]: Without dead ends: 110988 [2025-03-08 06:47:42,071 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-08 06:47:42,071 INFO L435 NwaCegarLoop]: 3716 mSDtfsCounter, 2057 mSDsluCounter, 238 mSDsCounter, 0 mSdLazyCounter, 4800 mSolverCounterSat, 2197 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2057 SdHoareTripleChecker+Valid, 3954 SdHoareTripleChecker+Invalid, 6997 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2197 IncrementalHoareTripleChecker+Valid, 4800 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2025-03-08 06:47:42,072 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2057 Valid, 3954 Invalid, 6997 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2197 Valid, 4800 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2025-03-08 06:47:42,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110988 states. [2025-03-08 06:47:42,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110988 to 110980. [2025-03-08 06:47:42,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110980 states, 110979 states have (on average 1.1658241649321042) internal successors, (129382), 110979 states have internal predecessors, (129382), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 06:47:43,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110980 states to 110980 states and 129382 transitions. [2025-03-08 06:47:43,104 INFO L78 Accepts]: Start accepts. Automaton has 110980 states and 129382 transitions. Word has length 1770 [2025-03-08 06:47:43,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 06:47:43,104 INFO L471 AbstractCegarLoop]: Abstraction has 110980 states and 129382 transitions. [2025-03-08 06:47:43,105 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 560.6666666666666) internal successors, (1682), 3 states have internal predecessors, (1682), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 06:47:43,105 INFO L276 IsEmpty]: Start isEmpty. Operand 110980 states and 129382 transitions. [2025-03-08 06:47:43,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1844 [2025-03-08 06:47:43,184 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 06:47:43,184 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 06:47:43,185 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2025-03-08 06:47:43,185 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 06:47:43,186 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 06:47:43,186 INFO L85 PathProgramCache]: Analyzing trace with hash 777908703, now seen corresponding path program 1 times [2025-03-08 06:47:43,186 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 06:47:43,186 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [275459053] [2025-03-08 06:47:43,186 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 06:47:43,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 06:47:43,518 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1843 statements into 1 equivalence classes. [2025-03-08 06:47:43,526 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1843 of 1843 statements. [2025-03-08 06:47:43,526 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 06:47:43,526 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 06:47:44,487 INFO L134 CoverageAnalysis]: Checked inductivity of 249 backedges. 63 proven. 0 refuted. 0 times theorem prover too weak. 186 trivial. 0 not checked. [2025-03-08 06:47:44,487 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 06:47:44,487 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [275459053] [2025-03-08 06:47:44,487 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [275459053] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 06:47:44,487 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 06:47:44,487 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-08 06:47:44,488 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [872647191] [2025-03-08 06:47:44,488 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 06:47:44,489 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-08 06:47:44,489 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 06:47:44,491 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-08 06:47:44,491 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-08 06:47:44,491 INFO L87 Difference]: Start difference. First operand 110980 states and 129382 transitions. Second operand has 3 states, 3 states have (on average 559.6666666666666) internal successors, (1679), 2 states have internal predecessors, (1679), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 06:47:49,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 06:47:49,376 INFO L93 Difference]: Finished difference Result 281378 states and 326104 transitions. [2025-03-08 06:47:49,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-08 06:47:49,377 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 559.6666666666666) internal successors, (1679), 2 states have internal predecessors, (1679), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1843 [2025-03-08 06:47:49,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 06:47:49,583 INFO L225 Difference]: With dead ends: 281378 [2025-03-08 06:47:49,583 INFO L226 Difference]: Without dead ends: 170401 [2025-03-08 06:47:49,696 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-08 06:47:49,697 INFO L435 NwaCegarLoop]: 1684 mSDtfsCounter, 2440 mSDsluCounter, 181 mSDsCounter, 0 mSdLazyCounter, 4831 mSolverCounterSat, 1697 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2440 SdHoareTripleChecker+Valid, 1865 SdHoareTripleChecker+Invalid, 6528 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1697 IncrementalHoareTripleChecker+Valid, 4831 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2025-03-08 06:47:49,699 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2440 Valid, 1865 Invalid, 6528 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1697 Valid, 4831 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2025-03-08 06:47:49,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170401 states. [2025-03-08 06:47:51,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170401 to 150015. [2025-03-08 06:47:51,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 150015 states, 150014 states have (on average 1.0936112629487915) internal successors, (164057), 150014 states have internal predecessors, (164057), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 06:47:51,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150015 states to 150015 states and 164057 transitions. [2025-03-08 06:47:51,592 INFO L78 Accepts]: Start accepts. Automaton has 150015 states and 164057 transitions. Word has length 1843 [2025-03-08 06:47:51,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 06:47:51,593 INFO L471 AbstractCegarLoop]: Abstraction has 150015 states and 164057 transitions. [2025-03-08 06:47:51,593 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 559.6666666666666) internal successors, (1679), 2 states have internal predecessors, (1679), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 06:47:51,593 INFO L276 IsEmpty]: Start isEmpty. Operand 150015 states and 164057 transitions. [2025-03-08 06:47:51,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2050 [2025-03-08 06:47:51,706 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 06:47:51,706 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 06:47:51,706 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2025-03-08 06:47:51,707 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 06:47:51,707 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 06:47:51,708 INFO L85 PathProgramCache]: Analyzing trace with hash 221767601, now seen corresponding path program 1 times [2025-03-08 06:47:51,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 06:47:51,708 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [632906184] [2025-03-08 06:47:51,708 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 06:47:51,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 06:47:52,236 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2049 statements into 1 equivalence classes. [2025-03-08 06:47:52,263 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2049 of 2049 statements. [2025-03-08 06:47:52,264 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 06:47:52,264 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 06:47:54,118 INFO L134 CoverageAnalysis]: Checked inductivity of 822 backedges. 641 proven. 0 refuted. 0 times theorem prover too weak. 181 trivial. 0 not checked. [2025-03-08 06:47:54,119 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 06:47:54,119 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [632906184] [2025-03-08 06:47:54,119 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [632906184] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 06:47:54,119 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 06:47:54,119 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-08 06:47:54,119 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [777243537] [2025-03-08 06:47:54,119 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 06:47:54,120 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-08 06:47:54,120 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 06:47:54,121 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-08 06:47:54,121 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-08 06:47:54,122 INFO L87 Difference]: Start difference. First operand 150015 states and 164057 transitions. Second operand has 3 states, 3 states have (on average 623.3333333333334) internal successors, (1870), 3 states have internal predecessors, (1870), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 06:47:59,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 06:47:59,827 INFO L93 Difference]: Finished difference Result 390107 states and 428132 transitions. [2025-03-08 06:47:59,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-08 06:47:59,828 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 623.3333333333334) internal successors, (1870), 3 states have internal predecessors, (1870), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 2049 [2025-03-08 06:47:59,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted.