./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/combinations/Problem05_label46+token_ring.08.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_label46+token_ring.08.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 0385e1d16d423c194d4048fc3b294994e5a7e416b8435d95ed6181aeb075af1b --- Real Ultimate output --- This is Ultimate 0.3.0-?-e2fb8be-m [2025-03-08 06:56:30,534 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-08 06:56:30,585 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-03-08 06:56:30,591 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-08 06:56:30,591 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-08 06:56:30,613 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-08 06:56:30,613 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-08 06:56:30,613 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-08 06:56:30,614 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-08 06:56:30,614 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-08 06:56:30,614 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-08 06:56:30,614 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-08 06:56:30,614 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-08 06:56:30,614 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-08 06:56:30,614 INFO L153 SettingsManager]: * Use SBE=true [2025-03-08 06:56:30,614 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-08 06:56:30,615 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-08 06:56:30,615 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-08 06:56:30,615 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-08 06:56:30,615 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-08 06:56:30,615 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-08 06:56:30,615 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-08 06:56:30,615 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-08 06:56:30,615 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-08 06:56:30,615 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-08 06:56:30,615 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-08 06:56:30,615 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-08 06:56:30,615 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-08 06:56:30,615 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-08 06:56:30,615 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-08 06:56:30,615 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-08 06:56:30,615 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-08 06:56:30,616 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 06:56:30,617 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-08 06:56:30,617 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-08 06:56:30,617 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-08 06:56:30,617 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-08 06:56:30,617 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-08 06:56:30,617 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-08 06:56:30,617 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-08 06:56:30,617 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-08 06:56:30,617 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-08 06:56:30,617 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-08 06:56:30,617 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 -> 0385e1d16d423c194d4048fc3b294994e5a7e416b8435d95ed6181aeb075af1b [2025-03-08 06:56:30,866 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-08 06:56:30,871 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-08 06:56:30,873 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-08 06:56:30,874 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-08 06:56:30,874 INFO L274 PluginConnector]: CDTParser initialized [2025-03-08 06:56:30,875 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/Problem05_label46+token_ring.08.cil-1.c [2025-03-08 06:56:32,067 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/28b5ad83d/be5c3f8ce5f745c3b32890b90bbbca5e/FLAG062289472 [2025-03-08 06:56:32,589 INFO L384 CDTParser]: Found 1 translation units. [2025-03-08 06:56:32,590 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label46+token_ring.08.cil-1.c [2025-03-08 06:56:32,635 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/28b5ad83d/be5c3f8ce5f745c3b32890b90bbbca5e/FLAG062289472 [2025-03-08 06:56:32,650 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/28b5ad83d/be5c3f8ce5f745c3b32890b90bbbca5e [2025-03-08 06:56:32,652 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-08 06:56:32,653 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-08 06:56:32,654 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-08 06:56:32,654 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-08 06:56:32,657 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-08 06:56:32,657 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 06:56:32" (1/1) ... [2025-03-08 06:56:32,658 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7f3a8e29 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:56:32, skipping insertion in model container [2025-03-08 06:56:32,658 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 06:56:32" (1/1) ... [2025-03-08 06:56:32,770 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-08 06:56:33,843 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_label46+token_ring.08.cil-1.c[382357,382370] [2025-03-08 06:56:33,873 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_label46+token_ring.08.cil-1.c[383339,383352] [2025-03-08 06:56:34,132 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 06:56:34,141 INFO L200 MainTranslator]: Completed pre-run [2025-03-08 06:56:34,649 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_label46+token_ring.08.cil-1.c[382357,382370] [2025-03-08 06:56:34,652 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_label46+token_ring.08.cil-1.c[383339,383352] [2025-03-08 06:56:34,667 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 06:56:34,714 INFO L204 MainTranslator]: Completed translation [2025-03-08 06:56:34,715 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:56:34 WrapperNode [2025-03-08 06:56:34,716 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-08 06:56:34,717 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-08 06:56:34,717 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-08 06:56:34,717 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-08 06:56:34,722 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:56:34" (1/1) ... [2025-03-08 06:56:34,787 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:56:34" (1/1) ... [2025-03-08 06:56:35,068 INFO L138 Inliner]: procedures = 60, calls = 65, calls flagged for inlining = 38, calls inlined = 38, statements flattened = 12957 [2025-03-08 06:56:35,068 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-08 06:56:35,069 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-08 06:56:35,069 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-08 06:56:35,069 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-08 06:56:35,076 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:56:34" (1/1) ... [2025-03-08 06:56:35,076 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:56:34" (1/1) ... [2025-03-08 06:56:35,244 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:56:34" (1/1) ... [2025-03-08 06:56:35,319 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 06:56:35,319 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:56:34" (1/1) ... [2025-03-08 06:56:35,319 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:56:34" (1/1) ... [2025-03-08 06:56:35,442 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:56:34" (1/1) ... [2025-03-08 06:56:35,462 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:56:34" (1/1) ... [2025-03-08 06:56:35,479 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:56:34" (1/1) ... [2025-03-08 06:56:35,496 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:56:34" (1/1) ... [2025-03-08 06:56:35,543 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-08 06:56:35,544 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-08 06:56:35,544 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-08 06:56:35,544 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-08 06:56:35,545 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:56:34" (1/1) ... [2025-03-08 06:56:35,550 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 06:56:35,560 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 06:56:35,572 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 06:56:35,645 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 06:56:35,666 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-08 06:56:35,666 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2025-03-08 06:56:35,666 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2025-03-08 06:56:35,667 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2025-03-08 06:56:35,667 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2025-03-08 06:56:35,667 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2025-03-08 06:56:35,667 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2025-03-08 06:56:35,667 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2025-03-08 06:56:35,667 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2025-03-08 06:56:35,667 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2025-03-08 06:56:35,667 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2025-03-08 06:56:35,667 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2025-03-08 06:56:35,667 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2025-03-08 06:56:35,667 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-08 06:56:35,667 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-08 06:56:35,667 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-08 06:56:35,786 INFO L256 CfgBuilder]: Building ICFG [2025-03-08 06:56:35,788 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-08 06:56:41,725 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L4481: havoc calculate_output3_#t~ret16#1; [2025-03-08 06:56:41,726 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L7469: havoc calculate_output5_#t~ret18#1; [2025-03-08 06:56:41,726 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L3033: havoc calculate_output2_#t~ret15#1; [2025-03-08 06:56:41,726 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L10440: havoc calculate_output7_#t~ret20#1; [2025-03-08 06:56:41,727 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L8922: havoc calculate_output6_#t~ret19#1; [2025-03-08 06:56:41,727 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L6035: havoc calculate_output4_#t~ret17#1; [2025-03-08 06:56:41,727 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L1543: havoc calculate_output_#t~ret14#1; [2025-03-08 06:56:41,924 INFO L? ?]: Removed 1731 outVars from TransFormulas that were not future-live. [2025-03-08 06:56:41,924 INFO L307 CfgBuilder]: Performing block encoding [2025-03-08 06:56:41,972 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-08 06:56:41,976 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-08 06:56:41,976 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 06:56:41 BoogieIcfgContainer [2025-03-08 06:56:41,976 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-08 06:56:41,978 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-08 06:56:41,979 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-08 06:56:41,982 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-08 06:56:41,982 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.03 06:56:32" (1/3) ... [2025-03-08 06:56:41,982 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48386d69 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 06:56:41, skipping insertion in model container [2025-03-08 06:56:41,982 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:56:34" (2/3) ... [2025-03-08 06:56:41,982 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48386d69 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 06:56:41, skipping insertion in model container [2025-03-08 06:56:41,983 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 06:56:41" (3/3) ... [2025-03-08 06:56:41,984 INFO L128 eAbstractionObserver]: Analyzing ICFG Problem05_label46+token_ring.08.cil-1.c [2025-03-08 06:56:41,995 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-08 06:56:41,998 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG Problem05_label46+token_ring.08.cil-1.c that has 7 procedures, 2463 locations, 1 initial locations, 12 loop locations, and 2 error locations. [2025-03-08 06:56:42,078 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-08 06:56:42,086 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;@1c3b9169, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-08 06:56:42,087 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2025-03-08 06:56:42,095 INFO L276 IsEmpty]: Start isEmpty. Operand has 2463 states, 2433 states have (on average 1.843403205918619) internal successors, (4485), 2435 states have internal predecessors, (4485), 22 states have call successors, (22), 6 states have call predecessors, (22), 6 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2025-03-08 06:56:42,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2025-03-08 06:56:42,107 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 06:56:42,108 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] [2025-03-08 06:56:42,108 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 06:56:42,114 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 06:56:42,115 INFO L85 PathProgramCache]: Analyzing trace with hash -1059960243, now seen corresponding path program 1 times [2025-03-08 06:56:42,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 06:56:42,123 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [737436867] [2025-03-08 06:56:42,123 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 06:56:42,123 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 06:56:42,201 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 132 statements into 1 equivalence classes. [2025-03-08 06:56:42,240 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 132 of 132 statements. [2025-03-08 06:56:42,241 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 06:56:42,241 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 06:56:42,595 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 06:56:42,596 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 06:56:42,596 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [737436867] [2025-03-08 06:56:42,597 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [737436867] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 06:56:42,597 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 06:56:42,598 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-08 06:56:42,599 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1028737413] [2025-03-08 06:56:42,599 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 06:56:42,603 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-08 06:56:42,603 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 06:56:42,621 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-08 06:56:42,622 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-08 06:56:42,631 INFO L87 Difference]: Start difference. First operand has 2463 states, 2433 states have (on average 1.843403205918619) internal successors, (4485), 2435 states have internal predecessors, (4485), 22 states have call successors, (22), 6 states have call predecessors, (22), 6 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) Second operand has 5 states, 5 states have (on average 24.4) internal successors, (122), 4 states have internal predecessors, (122), 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 06:56:43,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 06:56:43,251 INFO L93 Difference]: Finished difference Result 5204 states and 9513 transitions. [2025-03-08 06:56:43,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-08 06:56:43,253 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.4) internal successors, (122), 4 states have internal predecessors, (122), 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 132 [2025-03-08 06:56:43,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 06:56:43,271 INFO L225 Difference]: With dead ends: 5204 [2025-03-08 06:56:43,271 INFO L226 Difference]: Without dead ends: 2687 [2025-03-08 06:56:43,281 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 06:56:43,285 INFO L435 NwaCegarLoop]: 4360 mSDtfsCounter, 4834 mSDsluCounter, 8899 mSDsCounter, 0 mSdLazyCounter, 468 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4850 SdHoareTripleChecker+Valid, 13259 SdHoareTripleChecker+Invalid, 516 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 468 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-03-08 06:56:43,286 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4850 Valid, 13259 Invalid, 516 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 468 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-03-08 06:56:43,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2687 states. [2025-03-08 06:56:43,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2687 to 2666. [2025-03-08 06:56:43,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2666 states, 2612 states have (on average 1.812021439509954) internal successors, (4733), 2615 states have internal predecessors, (4733), 39 states have call successors, (39), 12 states have call predecessors, (39), 13 states have return successors, (40), 39 states have call predecessors, (40), 39 states have call successors, (40) [2025-03-08 06:56:43,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2666 states to 2666 states and 4812 transitions. [2025-03-08 06:56:43,472 INFO L78 Accepts]: Start accepts. Automaton has 2666 states and 4812 transitions. Word has length 132 [2025-03-08 06:56:43,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 06:56:43,473 INFO L471 AbstractCegarLoop]: Abstraction has 2666 states and 4812 transitions. [2025-03-08 06:56:43,474 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.4) internal successors, (122), 4 states have internal predecessors, (122), 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 06:56:43,474 INFO L276 IsEmpty]: Start isEmpty. Operand 2666 states and 4812 transitions. [2025-03-08 06:56:43,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2025-03-08 06:56:43,482 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 06:56:43,482 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] [2025-03-08 06:56:43,483 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-08 06:56:43,483 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 06:56:43,485 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 06:56:43,485 INFO L85 PathProgramCache]: Analyzing trace with hash -618390513, now seen corresponding path program 1 times [2025-03-08 06:56:43,485 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 06:56:43,485 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [607590181] [2025-03-08 06:56:43,486 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 06:56:43,486 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 06:56:43,509 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 132 statements into 1 equivalence classes. [2025-03-08 06:56:43,528 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 132 of 132 statements. [2025-03-08 06:56:43,532 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 06:56:43,532 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 06:56:43,860 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 06:56:43,862 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 06:56:43,862 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [607590181] [2025-03-08 06:56:43,863 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [607590181] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 06:56:43,863 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 06:56:43,863 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-08 06:56:43,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1856007492] [2025-03-08 06:56:43,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 06:56:43,864 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-08 06:56:43,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 06:56:43,865 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-08 06:56:43,865 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-08 06:56:43,865 INFO L87 Difference]: Start difference. First operand 2666 states and 4812 transitions. Second operand has 5 states, 5 states have (on average 24.4) internal successors, (122), 5 states have internal predecessors, (122), 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 06:56:44,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 06:56:44,149 INFO L93 Difference]: Finished difference Result 3249 states and 5745 transitions. [2025-03-08 06:56:44,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-08 06:56:44,150 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.4) internal successors, (122), 5 states have internal predecessors, (122), 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 132 [2025-03-08 06:56:44,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 06:56:44,160 INFO L225 Difference]: With dead ends: 3249 [2025-03-08 06:56:44,161 INFO L226 Difference]: Without dead ends: 2720 [2025-03-08 06:56:44,163 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 06:56:44,164 INFO L435 NwaCegarLoop]: 4279 mSDtfsCounter, 4533 mSDsluCounter, 8443 mSDsCounter, 0 mSdLazyCounter, 332 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4549 SdHoareTripleChecker+Valid, 12722 SdHoareTripleChecker+Invalid, 361 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 332 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-08 06:56:44,164 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4549 Valid, 12722 Invalid, 361 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 332 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-08 06:56:44,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2720 states. [2025-03-08 06:56:44,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2720 to 2666. [2025-03-08 06:56:44,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2666 states, 2612 states have (on average 1.8112557427258806) internal successors, (4731), 2615 states have internal predecessors, (4731), 39 states have call successors, (39), 12 states have call predecessors, (39), 13 states have return successors, (40), 39 states have call predecessors, (40), 39 states have call successors, (40) [2025-03-08 06:56:44,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2666 states to 2666 states and 4810 transitions. [2025-03-08 06:56:44,220 INFO L78 Accepts]: Start accepts. Automaton has 2666 states and 4810 transitions. Word has length 132 [2025-03-08 06:56:44,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 06:56:44,220 INFO L471 AbstractCegarLoop]: Abstraction has 2666 states and 4810 transitions. [2025-03-08 06:56:44,220 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.4) internal successors, (122), 5 states have internal predecessors, (122), 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 06:56:44,220 INFO L276 IsEmpty]: Start isEmpty. Operand 2666 states and 4810 transitions. [2025-03-08 06:56:44,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2025-03-08 06:56:44,222 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 06:56:44,222 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] [2025-03-08 06:56:44,222 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-08 06:56:44,222 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 06:56:44,222 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 06:56:44,223 INFO L85 PathProgramCache]: Analyzing trace with hash -382712338, now seen corresponding path program 1 times [2025-03-08 06:56:44,223 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 06:56:44,223 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [188977225] [2025-03-08 06:56:44,223 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 06:56:44,223 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 06:56:44,234 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 132 statements into 1 equivalence classes. [2025-03-08 06:56:44,237 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 132 of 132 statements. [2025-03-08 06:56:44,238 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 06:56:44,238 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 06:56:44,370 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 06:56:44,370 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 06:56:44,370 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [188977225] [2025-03-08 06:56:44,371 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [188977225] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 06:56:44,371 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 06:56:44,371 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-08 06:56:44,371 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [533843107] [2025-03-08 06:56:44,371 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 06:56:44,371 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-08 06:56:44,371 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 06:56:44,372 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-08 06:56:44,372 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-08 06:56:44,372 INFO L87 Difference]: Start difference. First operand 2666 states and 4810 transitions. Second operand has 6 states, 6 states have (on average 20.333333333333332) internal successors, (122), 5 states have internal predecessors, (122), 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 06:56:44,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 06:56:44,924 INFO L93 Difference]: Finished difference Result 3534 states and 6188 transitions. [2025-03-08 06:56:44,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-08 06:56:44,925 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 20.333333333333332) internal successors, (122), 5 states have internal predecessors, (122), 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 132 [2025-03-08 06:56:44,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 06:56:44,938 INFO L225 Difference]: With dead ends: 3534 [2025-03-08 06:56:44,939 INFO L226 Difference]: Without dead ends: 3005 [2025-03-08 06:56:44,941 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2025-03-08 06:56:44,943 INFO L435 NwaCegarLoop]: 4508 mSDtfsCounter, 4761 mSDsluCounter, 13543 mSDsCounter, 0 mSdLazyCounter, 818 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4777 SdHoareTripleChecker+Valid, 18051 SdHoareTripleChecker+Invalid, 846 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 818 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-03-08 06:56:44,944 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4777 Valid, 18051 Invalid, 846 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 818 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-03-08 06:56:44,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3005 states. [2025-03-08 06:56:44,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3005 to 2916. [2025-03-08 06:56:45,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2916 states, 2838 states have (on average 1.7899929527836504) internal successors, (5080), 2842 states have internal predecessors, (5080), 56 states have call successors, (56), 18 states have call predecessors, (56), 20 states have return successors, (60), 57 states have call predecessors, (60), 56 states have call successors, (60) [2025-03-08 06:56:45,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2916 states to 2916 states and 5196 transitions. [2025-03-08 06:56:45,012 INFO L78 Accepts]: Start accepts. Automaton has 2916 states and 5196 transitions. Word has length 132 [2025-03-08 06:56:45,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 06:56:45,013 INFO L471 AbstractCegarLoop]: Abstraction has 2916 states and 5196 transitions. [2025-03-08 06:56:45,013 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.333333333333332) internal successors, (122), 5 states have internal predecessors, (122), 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 06:56:45,013 INFO L276 IsEmpty]: Start isEmpty. Operand 2916 states and 5196 transitions. [2025-03-08 06:56:45,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2025-03-08 06:56:45,014 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 06:56:45,015 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] [2025-03-08 06:56:45,015 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-08 06:56:45,015 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 06:56:45,015 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 06:56:45,015 INFO L85 PathProgramCache]: Analyzing trace with hash -1206393809, now seen corresponding path program 1 times [2025-03-08 06:56:45,015 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 06:56:45,015 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1511432179] [2025-03-08 06:56:45,016 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 06:56:45,016 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 06:56:45,026 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 132 statements into 1 equivalence classes. [2025-03-08 06:56:45,031 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 132 of 132 statements. [2025-03-08 06:56:45,031 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 06:56:45,031 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 06:56:45,205 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 06:56:45,205 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 06:56:45,205 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1511432179] [2025-03-08 06:56:45,205 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1511432179] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 06:56:45,205 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 06:56:45,205 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-08 06:56:45,205 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1712324560] [2025-03-08 06:56:45,206 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 06:56:45,206 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-08 06:56:45,206 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 06:56:45,206 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-08 06:56:45,207 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-08 06:56:45,207 INFO L87 Difference]: Start difference. First operand 2916 states and 5196 transitions. Second operand has 6 states, 6 states have (on average 20.333333333333332) internal successors, (122), 5 states have internal predecessors, (122), 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 06:56:45,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 06:56:45,744 INFO L93 Difference]: Finished difference Result 4327 states and 7431 transitions. [2025-03-08 06:56:45,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-08 06:56:45,745 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 20.333333333333332) internal successors, (122), 5 states have internal predecessors, (122), 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 132 [2025-03-08 06:56:45,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 06:56:45,757 INFO L225 Difference]: With dead ends: 4327 [2025-03-08 06:56:45,758 INFO L226 Difference]: Without dead ends: 3548 [2025-03-08 06:56:45,760 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2025-03-08 06:56:45,761 INFO L435 NwaCegarLoop]: 4504 mSDtfsCounter, 4756 mSDsluCounter, 13531 mSDsCounter, 0 mSdLazyCounter, 818 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4772 SdHoareTripleChecker+Valid, 18035 SdHoareTripleChecker+Invalid, 846 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 818 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-03-08 06:56:45,761 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4772 Valid, 18035 Invalid, 846 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 818 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-03-08 06:56:45,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3548 states. [2025-03-08 06:56:45,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3548 to 3447. [2025-03-08 06:56:45,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3447 states, 3319 states have (on average 1.757457065381139) internal successors, (5833), 3327 states have internal predecessors, (5833), 90 states have call successors, (90), 30 states have call predecessors, (90), 36 states have return successors, (106), 93 states have call predecessors, (106), 90 states have call successors, (106) [2025-03-08 06:56:45,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3447 states to 3447 states and 6029 transitions. [2025-03-08 06:56:45,842 INFO L78 Accepts]: Start accepts. Automaton has 3447 states and 6029 transitions. Word has length 132 [2025-03-08 06:56:45,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 06:56:45,843 INFO L471 AbstractCegarLoop]: Abstraction has 3447 states and 6029 transitions. [2025-03-08 06:56:45,843 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.333333333333332) internal successors, (122), 5 states have internal predecessors, (122), 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 06:56:45,843 INFO L276 IsEmpty]: Start isEmpty. Operand 3447 states and 6029 transitions. [2025-03-08 06:56:45,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2025-03-08 06:56:45,845 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 06:56:45,845 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] [2025-03-08 06:56:45,845 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-08 06:56:45,845 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 06:56:45,845 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 06:56:45,845 INFO L85 PathProgramCache]: Analyzing trace with hash -124585522, now seen corresponding path program 1 times [2025-03-08 06:56:45,846 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 06:56:45,846 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1388441113] [2025-03-08 06:56:45,846 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 06:56:45,846 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 06:56:45,852 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 132 statements into 1 equivalence classes. [2025-03-08 06:56:45,855 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 132 of 132 statements. [2025-03-08 06:56:45,855 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 06:56:45,855 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 06:56:45,962 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 06:56:45,962 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 06:56:45,962 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1388441113] [2025-03-08 06:56:45,962 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1388441113] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 06:56:45,962 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 06:56:45,962 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-08 06:56:45,962 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [255646750] [2025-03-08 06:56:45,962 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 06:56:45,963 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-08 06:56:45,963 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 06:56:45,963 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-08 06:56:45,963 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-08 06:56:45,963 INFO L87 Difference]: Start difference. First operand 3447 states and 6029 transitions. Second operand has 6 states, 6 states have (on average 20.333333333333332) internal successors, (122), 5 states have internal predecessors, (122), 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 06:56:46,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 06:56:46,494 INFO L93 Difference]: Finished difference Result 6032 states and 10158 transitions. [2025-03-08 06:56:46,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-08 06:56:46,494 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 20.333333333333332) internal successors, (122), 5 states have internal predecessors, (122), 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 132 [2025-03-08 06:56:46,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 06:56:46,509 INFO L225 Difference]: With dead ends: 6032 [2025-03-08 06:56:46,510 INFO L226 Difference]: Without dead ends: 4722 [2025-03-08 06:56:46,513 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2025-03-08 06:56:46,514 INFO L435 NwaCegarLoop]: 4311 mSDtfsCounter, 4777 mSDsluCounter, 13075 mSDsCounter, 0 mSdLazyCounter, 669 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4793 SdHoareTripleChecker+Valid, 17386 SdHoareTripleChecker+Invalid, 715 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 669 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-03-08 06:56:46,514 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4793 Valid, 17386 Invalid, 715 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 669 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-03-08 06:56:46,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4722 states. [2025-03-08 06:56:46,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4722 to 4596. [2025-03-08 06:56:46,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4596 states, 4362 states have (on average 1.7177900045850527) internal successors, (7493), 4384 states have internal predecessors, (7493), 158 states have call successors, (158), 54 states have call predecessors, (158), 74 states have return successors, (222), 165 states have call predecessors, (222), 158 states have call successors, (222) [2025-03-08 06:56:46,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4596 states to 4596 states and 7873 transitions. [2025-03-08 06:56:46,668 INFO L78 Accepts]: Start accepts. Automaton has 4596 states and 7873 transitions. Word has length 132 [2025-03-08 06:56:46,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 06:56:46,669 INFO L471 AbstractCegarLoop]: Abstraction has 4596 states and 7873 transitions. [2025-03-08 06:56:46,669 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.333333333333332) internal successors, (122), 5 states have internal predecessors, (122), 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 06:56:46,669 INFO L276 IsEmpty]: Start isEmpty. Operand 4596 states and 7873 transitions. [2025-03-08 06:56:46,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2025-03-08 06:56:46,673 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 06:56:46,673 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] [2025-03-08 06:56:46,673 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-03-08 06:56:46,673 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 06:56:46,674 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 06:56:46,674 INFO L85 PathProgramCache]: Analyzing trace with hash -643877809, now seen corresponding path program 1 times [2025-03-08 06:56:46,674 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 06:56:46,674 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1514134857] [2025-03-08 06:56:46,674 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 06:56:46,674 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 06:56:46,688 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 132 statements into 1 equivalence classes. [2025-03-08 06:56:46,692 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 132 of 132 statements. [2025-03-08 06:56:46,693 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 06:56:46,693 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 06:56:46,814 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 06:56:46,814 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 06:56:46,814 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1514134857] [2025-03-08 06:56:46,814 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1514134857] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 06:56:46,814 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 06:56:46,815 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-08 06:56:46,815 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [325949382] [2025-03-08 06:56:46,815 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 06:56:46,815 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-08 06:56:46,815 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 06:56:46,816 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-08 06:56:46,816 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-08 06:56:46,816 INFO L87 Difference]: Start difference. First operand 4596 states and 7873 transitions. Second operand has 6 states, 6 states have (on average 20.333333333333332) internal successors, (122), 5 states have internal predecessors, (122), 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 06:56:47,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 06:56:47,473 INFO L93 Difference]: Finished difference Result 9771 states and 16312 transitions. [2025-03-08 06:56:47,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-08 06:56:47,474 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 20.333333333333332) internal successors, (122), 5 states have internal predecessors, (122), 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 132 [2025-03-08 06:56:47,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 06:56:47,506 INFO L225 Difference]: With dead ends: 9771 [2025-03-08 06:56:47,506 INFO L226 Difference]: Without dead ends: 7312 [2025-03-08 06:56:47,515 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2025-03-08 06:56:47,516 INFO L435 NwaCegarLoop]: 4498 mSDtfsCounter, 4746 mSDsluCounter, 13513 mSDsCounter, 0 mSdLazyCounter, 818 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4762 SdHoareTripleChecker+Valid, 18011 SdHoareTripleChecker+Invalid, 846 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 818 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2025-03-08 06:56:47,516 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4762 Valid, 18011 Invalid, 846 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 818 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2025-03-08 06:56:47,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7312 states. [2025-03-08 06:56:47,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7312 to 7137. [2025-03-08 06:56:47,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7137 states, 6673 states have (on average 1.6845496778060842) internal successors, (11241), 6741 states have internal predecessors, (11241), 294 states have call successors, (294), 102 states have call predecessors, (294), 168 states have return successors, (550), 309 states have call predecessors, (550), 294 states have call successors, (550) [2025-03-08 06:56:47,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7137 states to 7137 states and 12085 transitions. [2025-03-08 06:56:47,759 INFO L78 Accepts]: Start accepts. Automaton has 7137 states and 12085 transitions. Word has length 132 [2025-03-08 06:56:47,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 06:56:47,759 INFO L471 AbstractCegarLoop]: Abstraction has 7137 states and 12085 transitions. [2025-03-08 06:56:47,760 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.333333333333332) internal successors, (122), 5 states have internal predecessors, (122), 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 06:56:47,761 INFO L276 IsEmpty]: Start isEmpty. Operand 7137 states and 12085 transitions. [2025-03-08 06:56:47,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2025-03-08 06:56:47,764 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 06:56:47,764 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] [2025-03-08 06:56:47,764 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-03-08 06:56:47,764 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 06:56:47,765 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 06:56:47,765 INFO L85 PathProgramCache]: Analyzing trace with hash -1630460498, now seen corresponding path program 1 times [2025-03-08 06:56:47,765 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 06:56:47,765 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [398537176] [2025-03-08 06:56:47,765 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 06:56:47,765 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 06:56:47,772 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 132 statements into 1 equivalence classes. [2025-03-08 06:56:47,775 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 132 of 132 statements. [2025-03-08 06:56:47,775 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 06:56:47,775 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 06:56:47,860 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 06:56:47,860 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 06:56:47,860 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [398537176] [2025-03-08 06:56:47,861 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [398537176] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 06:56:47,861 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 06:56:47,861 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-08 06:56:47,861 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1054494877] [2025-03-08 06:56:47,861 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 06:56:47,861 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-08 06:56:47,861 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 06:56:47,862 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-08 06:56:47,862 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-08 06:56:47,862 INFO L87 Difference]: Start difference. First operand 7137 states and 12085 transitions. Second operand has 6 states, 6 states have (on average 20.333333333333332) internal successors, (122), 5 states have internal predecessors, (122), 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 06:56:48,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 06:56:48,513 INFO L93 Difference]: Finished difference Result 18162 states and 30698 transitions. [2025-03-08 06:56:48,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-08 06:56:48,514 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 20.333333333333332) internal successors, (122), 5 states have internal predecessors, (122), 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 132 [2025-03-08 06:56:48,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 06:56:48,559 INFO L225 Difference]: With dead ends: 18162 [2025-03-08 06:56:48,559 INFO L226 Difference]: Without dead ends: 13162 [2025-03-08 06:56:48,578 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2025-03-08 06:56:48,579 INFO L435 NwaCegarLoop]: 4495 mSDtfsCounter, 4741 mSDsluCounter, 13504 mSDsCounter, 0 mSdLazyCounter, 818 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4757 SdHoareTripleChecker+Valid, 17999 SdHoareTripleChecker+Invalid, 846 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 818 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-03-08 06:56:48,579 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4757 Valid, 17999 Invalid, 846 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 818 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-03-08 06:56:48,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13162 states. [2025-03-08 06:56:48,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13162 to 12894. [2025-03-08 06:56:48,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12894 states, 11916 states have (on average 1.6714501510574018) internal successors, (19917), 12130 states have internal predecessors, (19917), 566 states have call successors, (566), 198 states have call predecessors, (566), 410 states have return successors, (1590), 597 states have call predecessors, (1590), 566 states have call successors, (1590) [2025-03-08 06:56:48,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12894 states to 12894 states and 22073 transitions. [2025-03-08 06:56:48,950 INFO L78 Accepts]: Start accepts. Automaton has 12894 states and 22073 transitions. Word has length 132 [2025-03-08 06:56:48,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 06:56:48,951 INFO L471 AbstractCegarLoop]: Abstraction has 12894 states and 22073 transitions. [2025-03-08 06:56:48,951 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.333333333333332) internal successors, (122), 5 states have internal predecessors, (122), 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 06:56:48,951 INFO L276 IsEmpty]: Start isEmpty. Operand 12894 states and 22073 transitions. [2025-03-08 06:56:48,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2025-03-08 06:56:48,956 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 06:56:48,956 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] [2025-03-08 06:56:48,956 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-03-08 06:56:48,956 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 06:56:48,957 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 06:56:48,957 INFO L85 PathProgramCache]: Analyzing trace with hash -553907089, now seen corresponding path program 1 times [2025-03-08 06:56:48,957 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 06:56:48,957 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [30896908] [2025-03-08 06:56:48,957 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 06:56:48,957 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 06:56:48,964 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 132 statements into 1 equivalence classes. [2025-03-08 06:56:48,968 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 132 of 132 statements. [2025-03-08 06:56:48,968 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 06:56:48,968 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 06:56:49,041 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 06:56:49,042 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 06:56:49,042 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [30896908] [2025-03-08 06:56:49,042 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [30896908] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 06:56:49,042 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 06:56:49,042 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-08 06:56:49,042 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1687177639] [2025-03-08 06:56:49,042 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 06:56:49,043 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-08 06:56:49,043 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 06:56:49,043 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-08 06:56:49,044 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-08 06:56:49,044 INFO L87 Difference]: Start difference. First operand 12894 states and 22073 transitions. Second operand has 5 states, 5 states have (on average 24.4) internal successors, (122), 5 states have internal predecessors, (122), 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 06:56:49,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 06:56:49,701 INFO L93 Difference]: Finished difference Result 26591 states and 46398 transitions. [2025-03-08 06:56:49,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-08 06:56:49,709 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.4) internal successors, (122), 5 states have internal predecessors, (122), 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 132 [2025-03-08 06:56:49,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 06:56:49,767 INFO L225 Difference]: With dead ends: 26591 [2025-03-08 06:56:49,767 INFO L226 Difference]: Without dead ends: 15834 [2025-03-08 06:56:49,801 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 06:56:49,803 INFO L435 NwaCegarLoop]: 4266 mSDtfsCounter, 4525 mSDsluCounter, 8418 mSDsCounter, 0 mSdLazyCounter, 332 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4541 SdHoareTripleChecker+Valid, 12684 SdHoareTripleChecker+Invalid, 361 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 332 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-08 06:56:49,803 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4541 Valid, 12684 Invalid, 361 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 332 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-08 06:56:49,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15834 states. [2025-03-08 06:56:50,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15834 to 12894. [2025-03-08 06:56:50,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12894 states, 11916 states have (on average 1.6686807653575024) internal successors, (19884), 12130 states have internal predecessors, (19884), 566 states have call successors, (566), 198 states have call predecessors, (566), 410 states have return successors, (1590), 597 states have call predecessors, (1590), 566 states have call successors, (1590) [2025-03-08 06:56:50,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12894 states to 12894 states and 22040 transitions. [2025-03-08 06:56:50,287 INFO L78 Accepts]: Start accepts. Automaton has 12894 states and 22040 transitions. Word has length 132 [2025-03-08 06:56:50,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 06:56:50,287 INFO L471 AbstractCegarLoop]: Abstraction has 12894 states and 22040 transitions. [2025-03-08 06:56:50,287 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.4) internal successors, (122), 5 states have internal predecessors, (122), 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 06:56:50,287 INFO L276 IsEmpty]: Start isEmpty. Operand 12894 states and 22040 transitions. [2025-03-08 06:56:50,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2025-03-08 06:56:50,293 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 06:56:50,293 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] [2025-03-08 06:56:50,294 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-03-08 06:56:50,294 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 06:56:50,294 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 06:56:50,294 INFO L85 PathProgramCache]: Analyzing trace with hash 1281935758, now seen corresponding path program 1 times [2025-03-08 06:56:50,294 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 06:56:50,294 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2058908744] [2025-03-08 06:56:50,295 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 06:56:50,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 06:56:50,303 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 132 statements into 1 equivalence classes. [2025-03-08 06:56:50,306 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 132 of 132 statements. [2025-03-08 06:56:50,307 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 06:56:50,307 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 06:56:50,376 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 06:56:50,376 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 06:56:50,377 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2058908744] [2025-03-08 06:56:50,377 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2058908744] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 06:56:50,377 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 06:56:50,377 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-08 06:56:50,377 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [556596611] [2025-03-08 06:56:50,377 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 06:56:50,377 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-08 06:56:50,377 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 06:56:50,378 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-08 06:56:50,378 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-08 06:56:50,378 INFO L87 Difference]: Start difference. First operand 12894 states and 22040 transitions. Second operand has 5 states, 5 states have (on average 24.4) internal successors, (122), 5 states have internal predecessors, (122), 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 06:56:51,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 06:56:51,054 INFO L93 Difference]: Finished difference Result 26346 states and 45842 transitions. [2025-03-08 06:56:51,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-08 06:56:51,056 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.4) internal successors, (122), 5 states have internal predecessors, (122), 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 132 [2025-03-08 06:56:51,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 06:56:51,111 INFO L225 Difference]: With dead ends: 26346 [2025-03-08 06:56:51,111 INFO L226 Difference]: Without dead ends: 15589 [2025-03-08 06:56:51,144 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 06:56:51,145 INFO L435 NwaCegarLoop]: 4263 mSDtfsCounter, 4522 mSDsluCounter, 8413 mSDsCounter, 0 mSdLazyCounter, 332 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4538 SdHoareTripleChecker+Valid, 12676 SdHoareTripleChecker+Invalid, 361 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 332 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-08 06:56:51,145 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4538 Valid, 12676 Invalid, 361 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 332 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-08 06:56:51,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15589 states. [2025-03-08 06:56:51,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15589 to 12894. [2025-03-08 06:56:51,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12894 states, 11916 states have (on average 1.6659113796576033) internal successors, (19851), 12130 states have internal predecessors, (19851), 566 states have call successors, (566), 198 states have call predecessors, (566), 410 states have return successors, (1590), 597 states have call predecessors, (1590), 566 states have call successors, (1590) [2025-03-08 06:56:51,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12894 states to 12894 states and 22007 transitions. [2025-03-08 06:56:51,763 INFO L78 Accepts]: Start accepts. Automaton has 12894 states and 22007 transitions. Word has length 132 [2025-03-08 06:56:51,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 06:56:51,763 INFO L471 AbstractCegarLoop]: Abstraction has 12894 states and 22007 transitions. [2025-03-08 06:56:51,764 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.4) internal successors, (122), 5 states have internal predecessors, (122), 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 06:56:51,764 INFO L276 IsEmpty]: Start isEmpty. Operand 12894 states and 22007 transitions. [2025-03-08 06:56:51,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2025-03-08 06:56:51,770 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 06:56:51,770 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] [2025-03-08 06:56:51,770 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-03-08 06:56:51,771 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 06:56:51,771 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 06:56:51,774 INFO L85 PathProgramCache]: Analyzing trace with hash 1341156495, now seen corresponding path program 1 times [2025-03-08 06:56:51,774 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 06:56:51,774 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [30865738] [2025-03-08 06:56:51,774 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 06:56:51,774 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 06:56:51,783 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 132 statements into 1 equivalence classes. [2025-03-08 06:56:51,786 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 132 of 132 statements. [2025-03-08 06:56:51,787 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 06:56:51,787 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 06:56:51,876 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 06:56:51,876 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 06:56:51,876 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [30865738] [2025-03-08 06:56:51,876 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [30865738] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 06:56:51,876 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 06:56:51,876 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-08 06:56:51,876 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1295158691] [2025-03-08 06:56:51,876 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 06:56:51,877 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-08 06:56:51,877 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 06:56:51,877 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-08 06:56:51,877 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-08 06:56:51,877 INFO L87 Difference]: Start difference. First operand 12894 states and 22007 transitions. Second operand has 6 states, 6 states have (on average 20.333333333333332) internal successors, (122), 5 states have internal predecessors, (122), 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 06:56:52,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 06:56:52,894 INFO L93 Difference]: Finished difference Result 38865 states and 67435 transitions. [2025-03-08 06:56:52,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-08 06:56:52,894 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 20.333333333333332) internal successors, (122), 5 states have internal predecessors, (122), 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 132 [2025-03-08 06:56:52,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 06:56:52,992 INFO L225 Difference]: With dead ends: 38865 [2025-03-08 06:56:52,993 INFO L226 Difference]: Without dead ends: 28108 [2025-03-08 06:56:53,030 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 06:56:53,030 INFO L435 NwaCegarLoop]: 4480 mSDtfsCounter, 4974 mSDsluCounter, 13456 mSDsCounter, 0 mSdLazyCounter, 821 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4999 SdHoareTripleChecker+Valid, 17936 SdHoareTripleChecker+Invalid, 852 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 821 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2025-03-08 06:56:53,031 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4999 Valid, 17936 Invalid, 852 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 821 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2025-03-08 06:56:53,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28108 states. [2025-03-08 06:56:53,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28108 to 25689. [2025-03-08 06:56:53,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25689 states, 23553 states have (on average 1.669723602088906) internal successors, (39327), 24221 states have internal predecessors, (39327), 1078 states have call successors, (1078), 390 states have call predecessors, (1078), 1056 states have return successors, (5174), 1141 states have call predecessors, (5174), 1078 states have call successors, (5174) [2025-03-08 06:56:53,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25689 states to 25689 states and 45579 transitions. [2025-03-08 06:56:53,791 INFO L78 Accepts]: Start accepts. Automaton has 25689 states and 45579 transitions. Word has length 132 [2025-03-08 06:56:53,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 06:56:53,791 INFO L471 AbstractCegarLoop]: Abstraction has 25689 states and 45579 transitions. [2025-03-08 06:56:53,792 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.333333333333332) internal successors, (122), 5 states have internal predecessors, (122), 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 06:56:53,792 INFO L276 IsEmpty]: Start isEmpty. Operand 25689 states and 45579 transitions. [2025-03-08 06:56:53,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2025-03-08 06:56:53,801 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 06:56:53,801 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] [2025-03-08 06:56:53,801 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-03-08 06:56:53,801 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 06:56:53,802 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 06:56:53,802 INFO L85 PathProgramCache]: Analyzing trace with hash 2035803502, now seen corresponding path program 1 times [2025-03-08 06:56:53,802 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 06:56:53,802 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [64715894] [2025-03-08 06:56:53,802 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 06:56:53,802 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 06:56:53,809 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 132 statements into 1 equivalence classes. [2025-03-08 06:56:53,813 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 132 of 132 statements. [2025-03-08 06:56:53,813 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 06:56:53,813 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 06:56:53,972 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 06:56:53,972 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 06:56:53,972 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [64715894] [2025-03-08 06:56:53,972 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [64715894] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 06:56:53,973 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 06:56:53,973 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-08 06:56:53,973 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1239978308] [2025-03-08 06:56:53,973 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 06:56:53,974 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-08 06:56:53,974 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 06:56:53,974 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-08 06:56:53,974 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-08 06:56:53,974 INFO L87 Difference]: Start difference. First operand 25689 states and 45579 transitions. Second operand has 5 states, 5 states have (on average 24.4) internal successors, (122), 5 states have internal predecessors, (122), 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 06:56:55,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 06:56:55,016 INFO L93 Difference]: Finished difference Result 55820 states and 102366 transitions. [2025-03-08 06:56:55,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-08 06:56:55,017 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.4) internal successors, (122), 5 states have internal predecessors, (122), 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 132 [2025-03-08 06:56:55,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 06:56:55,168 INFO L225 Difference]: With dead ends: 55820 [2025-03-08 06:56:55,169 INFO L226 Difference]: Without dead ends: 32268 [2025-03-08 06:56:55,230 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 06:56:55,231 INFO L435 NwaCegarLoop]: 4258 mSDtfsCounter, 4516 mSDsluCounter, 8402 mSDsCounter, 0 mSdLazyCounter, 334 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4532 SdHoareTripleChecker+Valid, 12660 SdHoareTripleChecker+Invalid, 365 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 334 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-08 06:56:55,232 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4532 Valid, 12660 Invalid, 365 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 334 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-08 06:56:55,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32268 states. [2025-03-08 06:56:56,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32268 to 25689. [2025-03-08 06:56:56,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25689 states, 23553 states have (on average 1.6669638687216066) internal successors, (39262), 24221 states have internal predecessors, (39262), 1078 states have call successors, (1078), 390 states have call predecessors, (1078), 1056 states have return successors, (5174), 1141 states have call predecessors, (5174), 1078 states have call successors, (5174) [2025-03-08 06:56:56,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25689 states to 25689 states and 45514 transitions. [2025-03-08 06:56:56,850 INFO L78 Accepts]: Start accepts. Automaton has 25689 states and 45514 transitions. Word has length 132 [2025-03-08 06:56:56,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 06:56:56,850 INFO L471 AbstractCegarLoop]: Abstraction has 25689 states and 45514 transitions. [2025-03-08 06:56:56,850 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.4) internal successors, (122), 5 states have internal predecessors, (122), 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 06:56:56,851 INFO L276 IsEmpty]: Start isEmpty. Operand 25689 states and 45514 transitions. [2025-03-08 06:56:56,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2025-03-08 06:56:56,860 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 06:56:56,860 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] [2025-03-08 06:56:56,860 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2025-03-08 06:56:56,860 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 06:56:56,860 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 06:56:56,860 INFO L85 PathProgramCache]: Analyzing trace with hash -1128377169, now seen corresponding path program 1 times [2025-03-08 06:56:56,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 06:56:56,861 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [470147779] [2025-03-08 06:56:56,861 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 06:56:56,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 06:56:56,867 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 132 statements into 1 equivalence classes. [2025-03-08 06:56:56,870 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 132 of 132 statements. [2025-03-08 06:56:56,870 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 06:56:56,870 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 06:56:56,950 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 06:56:56,951 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 06:56:56,951 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [470147779] [2025-03-08 06:56:56,951 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [470147779] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 06:56:56,951 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 06:56:56,952 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-08 06:56:56,952 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [740154115] [2025-03-08 06:56:56,952 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 06:56:56,952 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-08 06:56:56,953 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 06:56:56,953 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-08 06:56:56,953 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-08 06:56:56,953 INFO L87 Difference]: Start difference. First operand 25689 states and 45514 transitions. Second operand has 6 states, 6 states have (on average 20.333333333333332) internal successors, (122), 5 states have internal predecessors, (122), 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 06:56:58,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 06:56:58,784 INFO L93 Difference]: Finished difference Result 81894 states and 151450 transitions. [2025-03-08 06:56:58,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-08 06:56:58,785 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 20.333333333333332) internal successors, (122), 5 states have internal predecessors, (122), 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 132 [2025-03-08 06:56:58,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 06:56:59,008 INFO L225 Difference]: With dead ends: 81894 [2025-03-08 06:56:59,008 INFO L226 Difference]: Without dead ends: 58342 [2025-03-08 06:56:59,066 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 06:56:59,068 INFO L435 NwaCegarLoop]: 4472 mSDtfsCounter, 4901 mSDsluCounter, 13433 mSDsCounter, 0 mSdLazyCounter, 821 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4926 SdHoareTripleChecker+Valid, 17905 SdHoareTripleChecker+Invalid, 852 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 821 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-03-08 06:56:59,068 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4926 Valid, 17905 Invalid, 852 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 821 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-03-08 06:56:59,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58342 states. [2025-03-08 06:57:01,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58342 to 54585. [2025-03-08 06:57:01,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54585 states, 49679 states have (on average 1.678777753175386) internal successors, (83400), 51741 states have internal predecessors, (83400), 2070 states have call successors, (2070), 774 states have call predecessors, (2070), 2834 states have return successors, (18454), 2197 states have call predecessors, (18454), 2070 states have call successors, (18454) [2025-03-08 06:57:01,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54585 states to 54585 states and 103924 transitions. [2025-03-08 06:57:01,507 INFO L78 Accepts]: Start accepts. Automaton has 54585 states and 103924 transitions. Word has length 132 [2025-03-08 06:57:01,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 06:57:01,507 INFO L471 AbstractCegarLoop]: Abstraction has 54585 states and 103924 transitions. [2025-03-08 06:57:01,508 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.333333333333332) internal successors, (122), 5 states have internal predecessors, (122), 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 06:57:01,508 INFO L276 IsEmpty]: Start isEmpty. Operand 54585 states and 103924 transitions. [2025-03-08 06:57:01,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2025-03-08 06:57:01,526 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 06:57:01,526 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] [2025-03-08 06:57:01,526 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2025-03-08 06:57:01,526 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 06:57:01,527 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 06:57:01,527 INFO L85 PathProgramCache]: Analyzing trace with hash -2061731506, now seen corresponding path program 1 times [2025-03-08 06:57:01,527 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 06:57:01,527 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1167733009] [2025-03-08 06:57:01,527 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 06:57:01,527 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 06:57:01,534 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 132 statements into 1 equivalence classes. [2025-03-08 06:57:01,537 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 132 of 132 statements. [2025-03-08 06:57:01,537 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 06:57:01,538 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 06:57:01,598 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 06:57:01,598 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 06:57:01,598 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1167733009] [2025-03-08 06:57:01,598 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1167733009] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 06:57:01,598 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 06:57:01,598 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-08 06:57:01,599 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1453772542] [2025-03-08 06:57:01,599 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 06:57:01,599 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-08 06:57:01,599 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 06:57:01,600 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-08 06:57:01,600 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-08 06:57:01,600 INFO L87 Difference]: Start difference. First operand 54585 states and 103924 transitions. Second operand has 5 states, 5 states have (on average 24.4) internal successors, (122), 5 states have internal predecessors, (122), 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 06:57:04,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 06:57:04,535 INFO L93 Difference]: Finished difference Result 122356 states and 244586 transitions. [2025-03-08 06:57:04,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-08 06:57:04,535 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.4) internal successors, (122), 5 states have internal predecessors, (122), 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 132 [2025-03-08 06:57:04,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 06:57:04,911 INFO L225 Difference]: With dead ends: 122356 [2025-03-08 06:57:04,911 INFO L226 Difference]: Without dead ends: 69908 [2025-03-08 06:57:05,095 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 06:57:05,096 INFO L435 NwaCegarLoop]: 4240 mSDtfsCounter, 4523 mSDsluCounter, 8380 mSDsCounter, 0 mSdLazyCounter, 332 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4539 SdHoareTripleChecker+Valid, 12620 SdHoareTripleChecker+Invalid, 365 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 332 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-08 06:57:05,096 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4539 Valid, 12620 Invalid, 365 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 332 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-08 06:57:05,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69908 states. [2025-03-08 06:57:09,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69908 to 54585. [2025-03-08 06:57:09,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54585 states, 49679 states have (on average 1.6761810825499708) internal successors, (83271), 51741 states have internal predecessors, (83271), 2070 states have call successors, (2070), 774 states have call predecessors, (2070), 2834 states have return successors, (18454), 2197 states have call predecessors, (18454), 2070 states have call successors, (18454) [2025-03-08 06:57:09,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54585 states to 54585 states and 103795 transitions. [2025-03-08 06:57:09,299 INFO L78 Accepts]: Start accepts. Automaton has 54585 states and 103795 transitions. Word has length 132 [2025-03-08 06:57:09,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 06:57:09,299 INFO L471 AbstractCegarLoop]: Abstraction has 54585 states and 103795 transitions. [2025-03-08 06:57:09,300 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.4) internal successors, (122), 5 states have internal predecessors, (122), 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 06:57:09,300 INFO L276 IsEmpty]: Start isEmpty. Operand 54585 states and 103795 transitions. [2025-03-08 06:57:09,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2025-03-08 06:57:09,314 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 06:57:09,314 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] [2025-03-08 06:57:09,315 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2025-03-08 06:57:09,315 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 06:57:09,315 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 06:57:09,315 INFO L85 PathProgramCache]: Analyzing trace with hash -567819057, now seen corresponding path program 1 times [2025-03-08 06:57:09,315 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 06:57:09,315 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1356805160] [2025-03-08 06:57:09,315 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 06:57:09,316 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 06:57:09,322 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 132 statements into 1 equivalence classes. [2025-03-08 06:57:09,325 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 132 of 132 statements. [2025-03-08 06:57:09,325 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 06:57:09,325 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 06:57:09,373 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 06:57:09,373 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 06:57:09,373 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1356805160] [2025-03-08 06:57:09,373 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1356805160] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 06:57:09,373 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 06:57:09,374 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-08 06:57:09,374 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1515809577] [2025-03-08 06:57:09,374 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 06:57:09,374 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-08 06:57:09,374 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 06:57:09,374 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-08 06:57:09,374 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-08 06:57:09,374 INFO L87 Difference]: Start difference. First operand 54585 states and 103795 transitions. Second operand has 5 states, 5 states have (on average 24.4) internal successors, (122), 5 states have internal predecessors, (122), 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 06:57:13,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 06:57:13,044 INFO L93 Difference]: Finished difference Result 120167 states and 239950 transitions. [2025-03-08 06:57:13,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-08 06:57:13,045 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.4) internal successors, (122), 5 states have internal predecessors, (122), 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 132 [2025-03-08 06:57:13,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 06:57:13,368 INFO L225 Difference]: With dead ends: 120167 [2025-03-08 06:57:13,369 INFO L226 Difference]: Without dead ends: 67719 [2025-03-08 06:57:13,526 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 06:57:13,527 INFO L435 NwaCegarLoop]: 4250 mSDtfsCounter, 4509 mSDsluCounter, 8388 mSDsCounter, 0 mSdLazyCounter, 334 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4525 SdHoareTripleChecker+Valid, 12638 SdHoareTripleChecker+Invalid, 365 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 334 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-08 06:57:13,527 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4525 Valid, 12638 Invalid, 365 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 334 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-08 06:57:13,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67719 states. [2025-03-08 06:57:16,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67719 to 54585. [2025-03-08 06:57:16,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54585 states, 49679 states have (on average 1.6735844119245555) internal successors, (83142), 51741 states have internal predecessors, (83142), 2070 states have call successors, (2070), 774 states have call predecessors, (2070), 2834 states have return successors, (18454), 2197 states have call predecessors, (18454), 2070 states have call successors, (18454) [2025-03-08 06:57:16,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54585 states to 54585 states and 103666 transitions. [2025-03-08 06:57:16,573 INFO L78 Accepts]: Start accepts. Automaton has 54585 states and 103666 transitions. Word has length 132 [2025-03-08 06:57:16,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 06:57:16,573 INFO L471 AbstractCegarLoop]: Abstraction has 54585 states and 103666 transitions. [2025-03-08 06:57:16,573 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.4) internal successors, (122), 5 states have internal predecessors, (122), 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 06:57:16,573 INFO L276 IsEmpty]: Start isEmpty. Operand 54585 states and 103666 transitions. [2025-03-08 06:57:16,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2025-03-08 06:57:16,588 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 06:57:16,588 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] [2025-03-08 06:57:16,588 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2025-03-08 06:57:16,588 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 06:57:16,589 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 06:57:16,589 INFO L85 PathProgramCache]: Analyzing trace with hash -1766554322, now seen corresponding path program 1 times [2025-03-08 06:57:16,589 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 06:57:16,589 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1658488124] [2025-03-08 06:57:16,589 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 06:57:16,589 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 06:57:16,595 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 132 statements into 1 equivalence classes. [2025-03-08 06:57:16,598 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 132 of 132 statements. [2025-03-08 06:57:16,598 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 06:57:16,598 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 06:57:16,666 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 06:57:16,666 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 06:57:16,666 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1658488124] [2025-03-08 06:57:16,666 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1658488124] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 06:57:16,667 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 06:57:16,667 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-08 06:57:16,667 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2114453162] [2025-03-08 06:57:16,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 06:57:16,667 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-08 06:57:16,667 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 06:57:16,668 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-08 06:57:16,668 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-08 06:57:16,668 INFO L87 Difference]: Start difference. First operand 54585 states and 103666 transitions. Second operand has 6 states, 6 states have (on average 20.333333333333332) internal successors, (122), 5 states have internal predecessors, (122), 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 06:57:20,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 06:57:20,931 INFO L93 Difference]: Finished difference Result 174124 states and 357224 transitions. [2025-03-08 06:57:20,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-08 06:57:20,931 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 20.333333333333332) internal successors, (122), 5 states have internal predecessors, (122), 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 132 [2025-03-08 06:57:20,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 06:57:21,541 INFO L225 Difference]: With dead ends: 174124 [2025-03-08 06:57:21,541 INFO L226 Difference]: Without dead ends: 121676 [2025-03-08 06:57:21,738 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 06:57:21,739 INFO L435 NwaCegarLoop]: 4459 mSDtfsCounter, 4790 mSDsluCounter, 13396 mSDsCounter, 0 mSdLazyCounter, 821 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4815 SdHoareTripleChecker+Valid, 17855 SdHoareTripleChecker+Invalid, 852 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 821 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-03-08 06:57:21,739 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4815 Valid, 17855 Invalid, 852 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 821 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-03-08 06:57:21,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121676 states.