./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/combinations/Problem05_label49+token_ring.04.cil-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 551b0097 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/combinations/Problem05_label49+token_ring.04.cil-1.c -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 1cb4eb95fbb86e81adddda10624c3164b4456d4761ce2ac967ea89c58c777ea3 --- Real Ultimate output --- This is Ultimate 0.3.0-?-551b009-m [2025-01-09 05:27:02,870 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-09 05:27:02,931 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-01-09 05:27:02,938 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-09 05:27:02,938 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-09 05:27:02,966 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-09 05:27:02,966 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-09 05:27:02,967 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-09 05:27:02,967 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-01-09 05:27:02,967 INFO L153 SettingsManager]: * Use memory slicer=true [2025-01-09 05:27:02,967 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-09 05:27:02,967 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-09 05:27:02,967 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-09 05:27:02,967 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-09 05:27:02,967 INFO L153 SettingsManager]: * Use SBE=true [2025-01-09 05:27:02,967 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-09 05:27:02,967 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-09 05:27:02,967 INFO L153 SettingsManager]: * sizeof long=4 [2025-01-09 05:27:02,968 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-09 05:27:02,968 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-01-09 05:27:02,971 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-09 05:27:02,971 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-09 05:27:02,971 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-09 05:27:02,972 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-09 05:27:02,972 INFO L153 SettingsManager]: * sizeof long double=12 [2025-01-09 05:27:02,972 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-09 05:27:02,972 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-09 05:27:02,972 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-09 05:27:02,972 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-01-09 05:27:02,972 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 05:27:02,972 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 05:27:02,972 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 05:27:02,972 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 05:27:02,972 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-09 05:27:02,972 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 05:27:02,972 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 05:27:02,972 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 05:27:02,972 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 05:27:02,972 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-09 05:27:02,972 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-09 05:27:02,972 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-09 05:27:02,972 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-09 05:27:02,973 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-01-09 05:27:02,973 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-01-09 05:27:02,973 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-09 05:27:02,973 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-01-09 05:27:02,973 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-01-09 05:27:02,973 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-01-09 05:27:02,973 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1cb4eb95fbb86e81adddda10624c3164b4456d4761ce2ac967ea89c58c777ea3 [2025-01-09 05:27:03,194 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-09 05:27:03,201 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-09 05:27:03,204 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-09 05:27:03,204 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-09 05:27:03,205 INFO L274 PluginConnector]: CDTParser initialized [2025-01-09 05:27:03,205 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/Problem05_label49+token_ring.04.cil-1.c [2025-01-09 05:27:04,527 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/e6cd3d432/ac245cb1f01c4a55a35c0e108fbdd184/FLAG5e013bf0e [2025-01-09 05:27:05,139 INFO L384 CDTParser]: Found 1 translation units. [2025-01-09 05:27:05,140 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label49+token_ring.04.cil-1.c [2025-01-09 05:27:05,179 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/e6cd3d432/ac245cb1f01c4a55a35c0e108fbdd184/FLAG5e013bf0e [2025-01-09 05:27:05,588 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/e6cd3d432/ac245cb1f01c4a55a35c0e108fbdd184 [2025-01-09 05:27:05,590 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-09 05:27:05,591 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-09 05:27:05,592 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-09 05:27:05,592 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-09 05:27:05,595 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-09 05:27:05,596 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 05:27:05" (1/1) ... [2025-01-09 05:27:05,597 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a874566 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:27:05, skipping insertion in model container [2025-01-09 05:27:05,597 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 05:27:05" (1/1) ... [2025-01-09 05:27:05,759 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-09 05:27:06,965 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label49+token_ring.04.cil-1.c[380593,380606] [2025-01-09 05:27:06,991 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label49+token_ring.04.cil-1.c[383339,383352] [2025-01-09 05:27:07,161 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 05:27:07,168 INFO L200 MainTranslator]: Completed pre-run [2025-01-09 05:27:07,767 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label49+token_ring.04.cil-1.c[380593,380606] [2025-01-09 05:27:07,774 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label49+token_ring.04.cil-1.c[383339,383352] [2025-01-09 05:27:07,787 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 05:27:07,830 INFO L204 MainTranslator]: Completed translation [2025-01-09 05:27:07,831 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:27:07 WrapperNode [2025-01-09 05:27:07,831 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-09 05:27:07,832 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-09 05:27:07,833 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-09 05:27:07,833 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-09 05:27:07,838 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:27:07" (1/1) ... [2025-01-09 05:27:07,906 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:27:07" (1/1) ... [2025-01-09 05:27:08,324 INFO L138 Inliner]: procedures = 52, calls = 53, calls flagged for inlining = 30, calls inlined = 30, statements flattened = 12729 [2025-01-09 05:27:08,325 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-09 05:27:08,325 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-09 05:27:08,325 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-09 05:27:08,325 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-09 05:27:08,332 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:27:07" (1/1) ... [2025-01-09 05:27:08,333 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:27:07" (1/1) ... [2025-01-09 05:27:08,437 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:27:07" (1/1) ... [2025-01-09 05:27:08,507 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]. [2025-01-09 05:27:08,508 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:27:07" (1/1) ... [2025-01-09 05:27:08,508 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:27:07" (1/1) ... [2025-01-09 05:27:08,635 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:27:07" (1/1) ... [2025-01-09 05:27:08,656 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:27:07" (1/1) ... [2025-01-09 05:27:08,707 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:27:07" (1/1) ... [2025-01-09 05:27:08,755 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:27:07" (1/1) ... [2025-01-09 05:27:08,778 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:27:07" (1/1) ... [2025-01-09 05:27:08,835 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-09 05:27:08,837 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-09 05:27:08,838 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-09 05:27:08,838 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-09 05:27:08,839 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:27:07" (1/1) ... [2025-01-09 05:27:08,842 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 05:27:08,851 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 05:27:08,868 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-01-09 05:27:08,871 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-01-09 05:27:08,889 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-09 05:27:08,889 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2025-01-09 05:27:08,891 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2025-01-09 05:27:08,891 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2025-01-09 05:27:08,891 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2025-01-09 05:27:08,891 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2025-01-09 05:27:08,891 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2025-01-09 05:27:08,891 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2025-01-09 05:27:08,891 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2025-01-09 05:27:08,891 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2025-01-09 05:27:08,891 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2025-01-09 05:27:08,891 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2025-01-09 05:27:08,891 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2025-01-09 05:27:08,891 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-01-09 05:27:08,891 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-09 05:27:08,891 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-09 05:27:08,979 INFO L234 CfgBuilder]: Building ICFG [2025-01-09 05:27:08,981 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-09 05:27:15,822 INFO L? ?]: Removed 1707 outVars from TransFormulas that were not future-live. [2025-01-09 05:27:15,822 INFO L283 CfgBuilder]: Performing block encoding [2025-01-09 05:27:15,889 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-09 05:27:15,890 INFO L312 CfgBuilder]: Removed 8 assume(true) statements. [2025-01-09 05:27:15,890 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 05:27:15 BoogieIcfgContainer [2025-01-09 05:27:15,890 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-09 05:27:15,892 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-09 05:27:15,892 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-09 05:27:15,895 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-09 05:27:15,896 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.01 05:27:05" (1/3) ... [2025-01-09 05:27:15,896 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62530c60 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 05:27:15, skipping insertion in model container [2025-01-09 05:27:15,896 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:27:07" (2/3) ... [2025-01-09 05:27:15,896 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62530c60 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 05:27:15, skipping insertion in model container [2025-01-09 05:27:15,896 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 05:27:15" (3/3) ... [2025-01-09 05:27:15,897 INFO L128 eAbstractionObserver]: Analyzing ICFG Problem05_label49+token_ring.04.cil-1.c [2025-01-09 05:27:15,907 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-09 05:27:15,911 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG Problem05_label49+token_ring.04.cil-1.c that has 7 procedures, 2363 locations, 1 initial locations, 8 loop locations, and 2 error locations. [2025-01-09 05:27:15,999 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-09 05:27:16,008 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;@1f7c5e6e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-09 05:27:16,008 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2025-01-09 05:27:16,018 INFO L276 IsEmpty]: Start isEmpty. Operand has 2363 states, 2337 states have (on average 1.85066324347454) internal successors, (4325), 2339 states have internal predecessors, (4325), 18 states have call successors, (18), 6 states have call predecessors, (18), 6 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2025-01-09 05:27:16,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2025-01-09 05:27:16,025 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 05:27:16,025 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] [2025-01-09 05:27:16,026 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 05:27:16,029 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 05:27:16,029 INFO L85 PathProgramCache]: Analyzing trace with hash -1916591227, now seen corresponding path program 1 times [2025-01-09 05:27:16,033 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 05:27:16,034 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [533420991] [2025-01-09 05:27:16,034 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 05:27:16,034 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 05:27:16,084 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 88 statements into 1 equivalence classes. [2025-01-09 05:27:16,096 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 88 of 88 statements. [2025-01-09 05:27:16,096 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 05:27:16,096 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 05:27:16,200 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 05:27:16,200 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 05:27:16,200 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [533420991] [2025-01-09 05:27:16,201 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [533420991] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 05:27:16,201 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 05:27:16,201 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-09 05:27:16,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1813857609] [2025-01-09 05:27:16,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 05:27:16,205 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-09 05:27:16,205 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 05:27:16,218 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-09 05:27:16,219 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 05:27:16,225 INFO L87 Difference]: Start difference. First operand has 2363 states, 2337 states have (on average 1.85066324347454) internal successors, (4325), 2339 states have internal predecessors, (4325), 18 states have call successors, (18), 6 states have call predecessors, (18), 6 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-01-09 05:27:16,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 05:27:16,374 INFO L93 Difference]: Finished difference Result 4719 states and 8709 transitions. [2025-01-09 05:27:16,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-09 05:27:16,376 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 88 [2025-01-09 05:27:16,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 05:27:16,400 INFO L225 Difference]: With dead ends: 4719 [2025-01-09 05:27:16,401 INFO L226 Difference]: Without dead ends: 2296 [2025-01-09 05:27:16,407 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 05:27:16,410 INFO L435 NwaCegarLoop]: 4290 mSDtfsCounter, 262 mSDsluCounter, 4022 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 262 SdHoareTripleChecker+Valid, 8312 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-09 05:27:16,411 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [262 Valid, 8312 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 05:27:16,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2296 states. [2025-01-09 05:27:16,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2296 to 2296. [2025-01-09 05:27:16,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2296 states, 2270 states have (on average 1.8440528634361233) internal successors, (4186), 2272 states have internal predecessors, (4186), 18 states have call successors, (18), 6 states have call predecessors, (18), 6 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2025-01-09 05:27:16,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2296 states to 2296 states and 4222 transitions. [2025-01-09 05:27:16,522 INFO L78 Accepts]: Start accepts. Automaton has 2296 states and 4222 transitions. Word has length 88 [2025-01-09 05:27:16,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 05:27:16,524 INFO L471 AbstractCegarLoop]: Abstraction has 2296 states and 4222 transitions. [2025-01-09 05:27:16,524 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-01-09 05:27:16,525 INFO L276 IsEmpty]: Start isEmpty. Operand 2296 states and 4222 transitions. [2025-01-09 05:27:16,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2025-01-09 05:27:16,527 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 05:27:16,527 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] [2025-01-09 05:27:16,527 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-01-09 05:27:16,527 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 05:27:16,529 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 05:27:16,529 INFO L85 PathProgramCache]: Analyzing trace with hash 1539342407, now seen corresponding path program 1 times [2025-01-09 05:27:16,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 05:27:16,529 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1104149697] [2025-01-09 05:27:16,529 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 05:27:16,529 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 05:27:16,541 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 88 statements into 1 equivalence classes. [2025-01-09 05:27:16,555 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 88 of 88 statements. [2025-01-09 05:27:16,558 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 05:27:16,558 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 05:27:16,748 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 05:27:16,748 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 05:27:16,748 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1104149697] [2025-01-09 05:27:16,748 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1104149697] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 05:27:16,748 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 05:27:16,748 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-01-09 05:27:16,748 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1998024759] [2025-01-09 05:27:16,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 05:27:16,751 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-09 05:27:16,751 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 05:27:16,752 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-09 05:27:16,752 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-01-09 05:27:16,752 INFO L87 Difference]: Start difference. First operand 2296 states and 4222 transitions. Second operand has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 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) [2025-01-09 05:27:17,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 05:27:17,104 INFO L93 Difference]: Finished difference Result 2638 states and 4748 transitions. [2025-01-09 05:27:17,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-09 05:27:17,105 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 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 88 [2025-01-09 05:27:17,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 05:27:17,116 INFO L225 Difference]: With dead ends: 2638 [2025-01-09 05:27:17,117 INFO L226 Difference]: Without dead ends: 2475 [2025-01-09 05:27:17,119 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 [2025-01-09 05:27:17,120 INFO L435 NwaCegarLoop]: 4161 mSDtfsCounter, 4426 mSDsluCounter, 8416 mSDsCounter, 0 mSdLazyCounter, 304 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4438 SdHoareTripleChecker+Valid, 12577 SdHoareTripleChecker+Invalid, 344 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 304 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-01-09 05:27:17,120 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4438 Valid, 12577 Invalid, 344 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 304 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-01-09 05:27:17,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2475 states. [2025-01-09 05:27:17,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2475 to 2462. [2025-01-09 05:27:17,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2462 states, 2416 states have (on average 1.826158940397351) internal successors, (4412), 2419 states have internal predecessors, (4412), 31 states have call successors, (31), 12 states have call predecessors, (31), 13 states have return successors, (32), 31 states have call predecessors, (32), 31 states have call successors, (32) [2025-01-09 05:27:17,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2462 states to 2462 states and 4475 transitions. [2025-01-09 05:27:17,185 INFO L78 Accepts]: Start accepts. Automaton has 2462 states and 4475 transitions. Word has length 88 [2025-01-09 05:27:17,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 05:27:17,185 INFO L471 AbstractCegarLoop]: Abstraction has 2462 states and 4475 transitions. [2025-01-09 05:27:17,185 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 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) [2025-01-09 05:27:17,186 INFO L276 IsEmpty]: Start isEmpty. Operand 2462 states and 4475 transitions. [2025-01-09 05:27:17,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2025-01-09 05:27:17,190 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 05:27:17,190 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] [2025-01-09 05:27:17,190 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-01-09 05:27:17,191 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 05:27:17,191 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 05:27:17,192 INFO L85 PathProgramCache]: Analyzing trace with hash 1551527883, now seen corresponding path program 1 times [2025-01-09 05:27:17,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 05:27:17,192 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [857459037] [2025-01-09 05:27:17,192 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 05:27:17,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 05:27:17,200 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 88 statements into 1 equivalence classes. [2025-01-09 05:27:17,216 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 88 of 88 statements. [2025-01-09 05:27:17,216 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 05:27:17,216 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 05:27:17,374 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 05:27:17,374 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 05:27:17,374 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [857459037] [2025-01-09 05:27:17,374 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [857459037] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 05:27:17,374 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 05:27:17,375 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-01-09 05:27:17,375 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1130602852] [2025-01-09 05:27:17,376 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 05:27:17,376 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-01-09 05:27:17,376 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 05:27:17,377 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-01-09 05:27:17,377 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-01-09 05:27:17,377 INFO L87 Difference]: Start difference. First operand 2462 states and 4475 transitions. Second operand has 6 states, 6 states have (on average 13.0) internal successors, (78), 5 states have internal predecessors, (78), 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) [2025-01-09 05:27:17,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 05:27:17,982 INFO L93 Difference]: Finished difference Result 2999 states and 5303 transitions. [2025-01-09 05:27:17,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-01-09 05:27:17,982 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.0) internal successors, (78), 5 states have internal predecessors, (78), 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 88 [2025-01-09 05:27:17,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 05:27:17,991 INFO L225 Difference]: With dead ends: 2999 [2025-01-09 05:27:17,991 INFO L226 Difference]: Without dead ends: 2670 [2025-01-09 05:27:17,993 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 [2025-01-09 05:27:17,994 INFO L435 NwaCegarLoop]: 4292 mSDtfsCounter, 4420 mSDsluCounter, 12858 mSDsCounter, 0 mSdLazyCounter, 554 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4432 SdHoareTripleChecker+Valid, 17150 SdHoareTripleChecker+Invalid, 578 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 554 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2025-01-09 05:27:17,994 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4432 Valid, 17150 Invalid, 578 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 554 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2025-01-09 05:27:17,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2670 states. [2025-01-09 05:27:18,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2670 to 2617. [2025-01-09 05:27:18,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2617 states, 2551 states have (on average 1.8094864758918072) internal successors, (4616), 2555 states have internal predecessors, (4616), 44 states have call successors, (44), 18 states have call predecessors, (44), 20 states have return successors, (48), 45 states have call predecessors, (48), 44 states have call successors, (48) [2025-01-09 05:27:18,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2617 states to 2617 states and 4708 transitions. [2025-01-09 05:27:18,045 INFO L78 Accepts]: Start accepts. Automaton has 2617 states and 4708 transitions. Word has length 88 [2025-01-09 05:27:18,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 05:27:18,045 INFO L471 AbstractCegarLoop]: Abstraction has 2617 states and 4708 transitions. [2025-01-09 05:27:18,045 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.0) internal successors, (78), 5 states have internal predecessors, (78), 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) [2025-01-09 05:27:18,045 INFO L276 IsEmpty]: Start isEmpty. Operand 2617 states and 4708 transitions. [2025-01-09 05:27:18,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2025-01-09 05:27:18,046 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 05:27:18,047 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] [2025-01-09 05:27:18,047 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-01-09 05:27:18,047 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 05:27:18,047 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 05:27:18,047 INFO L85 PathProgramCache]: Analyzing trace with hash 1628428681, now seen corresponding path program 1 times [2025-01-09 05:27:18,047 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 05:27:18,047 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1441895579] [2025-01-09 05:27:18,048 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 05:27:18,048 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 05:27:18,053 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 88 statements into 1 equivalence classes. [2025-01-09 05:27:18,056 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 88 of 88 statements. [2025-01-09 05:27:18,056 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 05:27:18,056 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 05:27:18,136 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 05:27:18,136 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 05:27:18,137 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1441895579] [2025-01-09 05:27:18,137 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1441895579] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 05:27:18,137 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 05:27:18,137 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-01-09 05:27:18,137 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2061457208] [2025-01-09 05:27:18,137 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 05:27:18,137 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-01-09 05:27:18,137 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 05:27:18,138 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-01-09 05:27:18,138 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-01-09 05:27:18,138 INFO L87 Difference]: Start difference. First operand 2617 states and 4708 transitions. Second operand has 6 states, 6 states have (on average 13.0) internal successors, (78), 5 states have internal predecessors, (78), 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) [2025-01-09 05:27:18,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 05:27:18,541 INFO L93 Difference]: Finished difference Result 3486 states and 6045 transitions. [2025-01-09 05:27:18,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-01-09 05:27:18,541 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.0) internal successors, (78), 5 states have internal predecessors, (78), 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 88 [2025-01-09 05:27:18,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 05:27:18,551 INFO L225 Difference]: With dead ends: 3486 [2025-01-09 05:27:18,551 INFO L226 Difference]: Without dead ends: 3002 [2025-01-09 05:27:18,553 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 [2025-01-09 05:27:18,554 INFO L435 NwaCegarLoop]: 4171 mSDtfsCounter, 4431 mSDsluCounter, 12580 mSDsCounter, 0 mSdLazyCounter, 449 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4443 SdHoareTripleChecker+Valid, 16751 SdHoareTripleChecker+Invalid, 487 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 449 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-01-09 05:27:18,554 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4443 Valid, 16751 Invalid, 487 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 449 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-01-09 05:27:18,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3002 states. [2025-01-09 05:27:18,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3002 to 2944. [2025-01-09 05:27:18,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2944 states, 2836 states have (on average 1.7810296191819464) internal successors, (5051), 2844 states have internal predecessors, (5051), 70 states have call successors, (70), 30 states have call predecessors, (70), 36 states have return successors, (86), 73 states have call predecessors, (86), 70 states have call successors, (86) [2025-01-09 05:27:18,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2944 states to 2944 states and 5207 transitions. [2025-01-09 05:27:18,615 INFO L78 Accepts]: Start accepts. Automaton has 2944 states and 5207 transitions. Word has length 88 [2025-01-09 05:27:18,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 05:27:18,616 INFO L471 AbstractCegarLoop]: Abstraction has 2944 states and 5207 transitions. [2025-01-09 05:27:18,616 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.0) internal successors, (78), 5 states have internal predecessors, (78), 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) [2025-01-09 05:27:18,616 INFO L276 IsEmpty]: Start isEmpty. Operand 2944 states and 5207 transitions. [2025-01-09 05:27:18,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2025-01-09 05:27:18,617 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 05:27:18,617 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] [2025-01-09 05:27:18,617 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-01-09 05:27:18,617 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 05:27:18,618 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 05:27:18,618 INFO L85 PathProgramCache]: Analyzing trace with hash 661078027, now seen corresponding path program 1 times [2025-01-09 05:27:18,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 05:27:18,618 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1973429372] [2025-01-09 05:27:18,618 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 05:27:18,618 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 05:27:18,624 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 88 statements into 1 equivalence classes. [2025-01-09 05:27:18,627 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 88 of 88 statements. [2025-01-09 05:27:18,627 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 05:27:18,627 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 05:27:18,723 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 05:27:18,723 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 05:27:18,723 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1973429372] [2025-01-09 05:27:18,723 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1973429372] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 05:27:18,723 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 05:27:18,723 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-01-09 05:27:18,723 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [566984591] [2025-01-09 05:27:18,723 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 05:27:18,724 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-01-09 05:27:18,724 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 05:27:18,724 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-01-09 05:27:18,724 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-01-09 05:27:18,724 INFO L87 Difference]: Start difference. First operand 2944 states and 5207 transitions. Second operand has 6 states, 6 states have (on average 13.0) internal successors, (78), 5 states have internal predecessors, (78), 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) [2025-01-09 05:27:19,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 05:27:19,130 INFO L93 Difference]: Finished difference Result 4523 states and 7658 transitions. [2025-01-09 05:27:19,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-01-09 05:27:19,131 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.0) internal successors, (78), 5 states have internal predecessors, (78), 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 88 [2025-01-09 05:27:19,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 05:27:19,147 INFO L225 Difference]: With dead ends: 4523 [2025-01-09 05:27:19,148 INFO L226 Difference]: Without dead ends: 3712 [2025-01-09 05:27:19,150 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 [2025-01-09 05:27:19,152 INFO L435 NwaCegarLoop]: 4285 mSDtfsCounter, 4410 mSDsluCounter, 12837 mSDsCounter, 0 mSdLazyCounter, 554 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4422 SdHoareTripleChecker+Valid, 17122 SdHoareTripleChecker+Invalid, 578 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 554 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-01-09 05:27:19,152 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4422 Valid, 17122 Invalid, 578 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 554 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-01-09 05:27:19,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3712 states. [2025-01-09 05:27:19,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3712 to 3643. [2025-01-09 05:27:19,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3643 states, 3445 states have (on average 1.7390420899854862) internal successors, (5991), 3467 states have internal predecessors, (5991), 122 states have call successors, (122), 54 states have call predecessors, (122), 74 states have return successors, (186), 129 states have call predecessors, (186), 122 states have call successors, (186) [2025-01-09 05:27:19,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3643 states to 3643 states and 6299 transitions. [2025-01-09 05:27:19,257 INFO L78 Accepts]: Start accepts. Automaton has 3643 states and 6299 transitions. Word has length 88 [2025-01-09 05:27:19,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 05:27:19,258 INFO L471 AbstractCegarLoop]: Abstraction has 3643 states and 6299 transitions. [2025-01-09 05:27:19,258 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.0) internal successors, (78), 5 states have internal predecessors, (78), 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) [2025-01-09 05:27:19,258 INFO L276 IsEmpty]: Start isEmpty. Operand 3643 states and 6299 transitions. [2025-01-09 05:27:19,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2025-01-09 05:27:19,262 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 05:27:19,262 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] [2025-01-09 05:27:19,262 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-01-09 05:27:19,262 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 05:27:19,262 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 05:27:19,262 INFO L85 PathProgramCache]: Analyzing trace with hash -1725431479, now seen corresponding path program 1 times [2025-01-09 05:27:19,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 05:27:19,262 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [835673457] [2025-01-09 05:27:19,262 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 05:27:19,262 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 05:27:19,271 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 88 statements into 1 equivalence classes. [2025-01-09 05:27:19,273 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 88 of 88 statements. [2025-01-09 05:27:19,274 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 05:27:19,274 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 05:27:19,362 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 05:27:19,362 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 05:27:19,362 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [835673457] [2025-01-09 05:27:19,362 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [835673457] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 05:27:19,362 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 05:27:19,363 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-01-09 05:27:19,363 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [615582939] [2025-01-09 05:27:19,363 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 05:27:19,363 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-01-09 05:27:19,363 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 05:27:19,363 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-01-09 05:27:19,364 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-01-09 05:27:19,365 INFO L87 Difference]: Start difference. First operand 3643 states and 6299 transitions. Second operand has 6 states, 6 states have (on average 13.0) internal successors, (78), 5 states have internal predecessors, (78), 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) [2025-01-09 05:27:19,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 05:27:19,818 INFO L93 Difference]: Finished difference Result 6984 states and 11565 transitions. [2025-01-09 05:27:19,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-01-09 05:27:19,819 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.0) internal successors, (78), 5 states have internal predecessors, (78), 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 88 [2025-01-09 05:27:19,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 05:27:19,838 INFO L225 Difference]: With dead ends: 6984 [2025-01-09 05:27:19,838 INFO L226 Difference]: Without dead ends: 5474 [2025-01-09 05:27:19,843 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 [2025-01-09 05:27:19,845 INFO L435 NwaCegarLoop]: 4276 mSDtfsCounter, 4536 mSDsluCounter, 12807 mSDsCounter, 0 mSdLazyCounter, 557 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4553 SdHoareTripleChecker+Valid, 17083 SdHoareTripleChecker+Invalid, 584 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 557 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-01-09 05:27:19,845 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4553 Valid, 17083 Invalid, 584 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 557 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-01-09 05:27:19,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5474 states. [2025-01-09 05:27:20,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5474 to 5107. [2025-01-09 05:27:20,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5107 states, 4719 states have (on average 1.6904005085823268) internal successors, (7977), 4787 states have internal predecessors, (7977), 218 states have call successors, (218), 102 states have call predecessors, (218), 168 states have return successors, (474), 233 states have call predecessors, (474), 218 states have call successors, (474) [2025-01-09 05:27:20,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5107 states to 5107 states and 8669 transitions. [2025-01-09 05:27:20,093 INFO L78 Accepts]: Start accepts. Automaton has 5107 states and 8669 transitions. Word has length 88 [2025-01-09 05:27:20,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 05:27:20,093 INFO L471 AbstractCegarLoop]: Abstraction has 5107 states and 8669 transitions. [2025-01-09 05:27:20,093 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.0) internal successors, (78), 5 states have internal predecessors, (78), 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) [2025-01-09 05:27:20,094 INFO L276 IsEmpty]: Start isEmpty. Operand 5107 states and 8669 transitions. [2025-01-09 05:27:20,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2025-01-09 05:27:20,098 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 05:27:20,098 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] [2025-01-09 05:27:20,099 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-01-09 05:27:20,099 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 05:27:20,099 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 05:27:20,099 INFO L85 PathProgramCache]: Analyzing trace with hash -771491321, now seen corresponding path program 1 times [2025-01-09 05:27:20,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 05:27:20,099 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [77823276] [2025-01-09 05:27:20,099 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 05:27:20,099 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 05:27:20,106 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 88 statements into 1 equivalence classes. [2025-01-09 05:27:20,110 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 88 of 88 statements. [2025-01-09 05:27:20,110 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 05:27:20,110 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 05:27:20,208 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 05:27:20,208 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 05:27:20,208 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [77823276] [2025-01-09 05:27:20,208 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [77823276] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 05:27:20,208 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 05:27:20,209 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-01-09 05:27:20,209 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1442696199] [2025-01-09 05:27:20,209 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 05:27:20,209 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-01-09 05:27:20,209 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 05:27:20,210 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-01-09 05:27:20,210 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-01-09 05:27:20,211 INFO L87 Difference]: Start difference. First operand 5107 states and 8669 transitions. Second operand has 6 states, 6 states have (on average 13.0) internal successors, (78), 5 states have internal predecessors, (78), 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) [2025-01-09 05:27:20,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 05:27:20,847 INFO L93 Difference]: Finished difference Result 11784 states and 19641 transitions. [2025-01-09 05:27:20,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-01-09 05:27:20,848 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.0) internal successors, (78), 5 states have internal predecessors, (78), 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 88 [2025-01-09 05:27:20,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 05:27:20,886 INFO L225 Difference]: With dead ends: 11784 [2025-01-09 05:27:20,886 INFO L226 Difference]: Without dead ends: 8810 [2025-01-09 05:27:20,898 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 [2025-01-09 05:27:20,898 INFO L435 NwaCegarLoop]: 4272 mSDtfsCounter, 4429 mSDsluCounter, 12795 mSDsCounter, 0 mSdLazyCounter, 655 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4440 SdHoareTripleChecker+Valid, 17067 SdHoareTripleChecker+Invalid, 681 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 655 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-01-09 05:27:20,899 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4440 Valid, 17067 Invalid, 681 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 655 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-01-09 05:27:20,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8810 states. [2025-01-09 05:27:21,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8810 to 8190. [2025-01-09 05:27:21,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8190 states, 7376 states have (on average 1.6454718004338396) internal successors, (12137), 7590 states have internal predecessors, (12137), 402 states have call successors, (402), 198 states have call predecessors, (402), 410 states have return successors, (1426), 433 states have call predecessors, (1426), 402 states have call successors, (1426) [2025-01-09 05:27:21,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8190 states to 8190 states and 13965 transitions. [2025-01-09 05:27:21,190 INFO L78 Accepts]: Start accepts. Automaton has 8190 states and 13965 transitions. Word has length 88 [2025-01-09 05:27:21,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 05:27:21,191 INFO L471 AbstractCegarLoop]: Abstraction has 8190 states and 13965 transitions. [2025-01-09 05:27:21,191 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.0) internal successors, (78), 5 states have internal predecessors, (78), 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) [2025-01-09 05:27:21,191 INFO L276 IsEmpty]: Start isEmpty. Operand 8190 states and 13965 transitions. [2025-01-09 05:27:21,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2025-01-09 05:27:21,195 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 05:27:21,195 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] [2025-01-09 05:27:21,195 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-01-09 05:27:21,196 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 05:27:21,196 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 05:27:21,196 INFO L85 PathProgramCache]: Analyzing trace with hash -1987645047, now seen corresponding path program 1 times [2025-01-09 05:27:21,196 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 05:27:21,196 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [893128431] [2025-01-09 05:27:21,196 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 05:27:21,196 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 05:27:21,201 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 88 statements into 1 equivalence classes. [2025-01-09 05:27:21,203 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 88 of 88 statements. [2025-01-09 05:27:21,203 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 05:27:21,203 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 05:27:21,323 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 05:27:21,324 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 05:27:21,324 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [893128431] [2025-01-09 05:27:21,324 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [893128431] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 05:27:21,324 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 05:27:21,324 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-01-09 05:27:21,324 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1418800552] [2025-01-09 05:27:21,324 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 05:27:21,325 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-01-09 05:27:21,325 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 05:27:21,325 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-01-09 05:27:21,325 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-01-09 05:27:21,325 INFO L87 Difference]: Start difference. First operand 8190 states and 13965 transitions. Second operand has 6 states, 6 states have (on average 13.0) internal successors, (78), 5 states have internal predecessors, (78), 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) [2025-01-09 05:27:22,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 05:27:22,059 INFO L93 Difference]: Finished difference Result 21853 states and 38083 transitions. [2025-01-09 05:27:22,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-01-09 05:27:22,059 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.0) internal successors, (78), 5 states have internal predecessors, (78), 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 88 [2025-01-09 05:27:22,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 05:27:22,122 INFO L225 Difference]: With dead ends: 21853 [2025-01-09 05:27:22,122 INFO L226 Difference]: Without dead ends: 15796 [2025-01-09 05:27:22,144 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 [2025-01-09 05:27:22,145 INFO L435 NwaCegarLoop]: 4270 mSDtfsCounter, 4466 mSDsluCounter, 12789 mSDsCounter, 0 mSdLazyCounter, 557 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4483 SdHoareTripleChecker+Valid, 17059 SdHoareTripleChecker+Invalid, 584 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 557 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-01-09 05:27:22,145 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4483 Valid, 17059 Invalid, 584 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 557 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-01-09 05:27:22,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15796 states. [2025-01-09 05:27:22,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15796 to 14939. [2025-01-09 05:27:22,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14939 states, 13127 states have (on average 1.612630456311419) internal successors, (21169), 13795 states have internal predecessors, (21169), 754 states have call successors, (754), 390 states have call predecessors, (754), 1056 states have return successors, (4850), 817 states have call predecessors, (4850), 754 states have call successors, (4850) [2025-01-09 05:27:22,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14939 states to 14939 states and 26773 transitions. [2025-01-09 05:27:22,871 INFO L78 Accepts]: Start accepts. Automaton has 14939 states and 26773 transitions. Word has length 88 [2025-01-09 05:27:22,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 05:27:22,872 INFO L471 AbstractCegarLoop]: Abstraction has 14939 states and 26773 transitions. [2025-01-09 05:27:22,872 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.0) internal successors, (78), 5 states have internal predecessors, (78), 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) [2025-01-09 05:27:22,872 INFO L276 IsEmpty]: Start isEmpty. Operand 14939 states and 26773 transitions. [2025-01-09 05:27:22,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2025-01-09 05:27:22,881 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 05:27:22,881 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] [2025-01-09 05:27:22,881 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-01-09 05:27:22,881 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 05:27:22,882 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 05:27:22,882 INFO L85 PathProgramCache]: Analyzing trace with hash 1575354823, now seen corresponding path program 1 times [2025-01-09 05:27:22,882 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 05:27:22,882 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1664622764] [2025-01-09 05:27:22,882 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 05:27:22,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 05:27:22,888 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 88 statements into 1 equivalence classes. [2025-01-09 05:27:22,891 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 88 of 88 statements. [2025-01-09 05:27:22,891 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 05:27:22,891 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 05:27:22,970 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 05:27:22,970 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 05:27:22,971 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1664622764] [2025-01-09 05:27:22,971 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1664622764] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 05:27:22,971 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 05:27:22,971 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-01-09 05:27:22,971 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1437268125] [2025-01-09 05:27:22,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 05:27:22,971 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-01-09 05:27:22,972 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 05:27:22,972 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-01-09 05:27:22,972 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-01-09 05:27:22,972 INFO L87 Difference]: Start difference. First operand 14939 states and 26773 transitions. Second operand has 6 states, 6 states have (on average 13.0) internal successors, (78), 5 states have internal predecessors, (78), 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) [2025-01-09 05:27:24,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 05:27:24,416 INFO L93 Difference]: Finished difference Result 43536 states and 83937 transitions. [2025-01-09 05:27:24,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-01-09 05:27:24,416 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.0) internal successors, (78), 5 states have internal predecessors, (78), 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 88 [2025-01-09 05:27:24,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 05:27:24,578 INFO L225 Difference]: With dead ends: 43536 [2025-01-09 05:27:24,578 INFO L226 Difference]: Without dead ends: 30730 [2025-01-09 05:27:24,634 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 [2025-01-09 05:27:24,634 INFO L435 NwaCegarLoop]: 4267 mSDtfsCounter, 4431 mSDsluCounter, 12780 mSDsCounter, 0 mSdLazyCounter, 557 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4448 SdHoareTripleChecker+Valid, 17047 SdHoareTripleChecker+Invalid, 584 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 557 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-01-09 05:27:24,635 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4448 Valid, 17047 Invalid, 584 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 557 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-01-09 05:27:24,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30730 states. [2025-01-09 05:27:26,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30730 to 29556. [2025-01-09 05:27:26,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29556 states, 25294 states have (on average 1.5857120265675655) internal successors, (40109), 27356 states have internal predecessors, (40109), 1426 states have call successors, (1426), 774 states have call predecessors, (1426), 2834 states have return successors, (17810), 1553 states have call predecessors, (17810), 1426 states have call successors, (17810) [2025-01-09 05:27:26,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29556 states to 29556 states and 59345 transitions. [2025-01-09 05:27:26,324 INFO L78 Accepts]: Start accepts. Automaton has 29556 states and 59345 transitions. Word has length 88 [2025-01-09 05:27:26,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 05:27:26,324 INFO L471 AbstractCegarLoop]: Abstraction has 29556 states and 59345 transitions. [2025-01-09 05:27:26,325 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.0) internal successors, (78), 5 states have internal predecessors, (78), 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) [2025-01-09 05:27:26,325 INFO L276 IsEmpty]: Start isEmpty. Operand 29556 states and 59345 transitions. [2025-01-09 05:27:26,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2025-01-09 05:27:26,339 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 05:27:26,339 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] [2025-01-09 05:27:26,339 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-01-09 05:27:26,339 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 05:27:26,340 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 05:27:26,340 INFO L85 PathProgramCache]: Analyzing trace with hash -110825015, now seen corresponding path program 1 times [2025-01-09 05:27:26,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 05:27:26,340 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [265957239] [2025-01-09 05:27:26,340 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 05:27:26,340 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 05:27:26,344 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 88 statements into 1 equivalence classes. [2025-01-09 05:27:26,347 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 88 of 88 statements. [2025-01-09 05:27:26,347 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 05:27:26,347 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 05:27:26,411 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 05:27:26,411 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 05:27:26,411 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [265957239] [2025-01-09 05:27:26,411 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [265957239] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 05:27:26,411 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 05:27:26,411 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-01-09 05:27:26,411 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [941998535] [2025-01-09 05:27:26,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 05:27:26,412 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-01-09 05:27:26,412 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 05:27:26,412 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-01-09 05:27:26,412 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-01-09 05:27:26,413 INFO L87 Difference]: Start difference. First operand 29556 states and 59345 transitions. Second operand has 6 states, 6 states have (on average 13.0) internal successors, (78), 5 states have internal predecessors, (78), 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) [2025-01-09 05:27:29,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 05:27:29,275 INFO L93 Difference]: Finished difference Result 89467 states and 206023 transitions. [2025-01-09 05:27:29,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-01-09 05:27:29,276 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.0) internal successors, (78), 5 states have internal predecessors, (78), 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 88 [2025-01-09 05:27:29,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 05:27:29,974 INFO L225 Difference]: With dead ends: 89467 [2025-01-09 05:27:29,974 INFO L226 Difference]: Without dead ends: 62044 [2025-01-09 05:27:30,037 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 [2025-01-09 05:27:30,038 INFO L435 NwaCegarLoop]: 4262 mSDtfsCounter, 4385 mSDsluCounter, 12773 mSDsCounter, 0 mSdLazyCounter, 588 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4396 SdHoareTripleChecker+Valid, 17035 SdHoareTripleChecker+Invalid, 615 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 588 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-01-09 05:27:30,038 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4396 Valid, 17035 Invalid, 615 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 588 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-01-09 05:27:30,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62044 states. [2025-01-09 05:27:34,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62044 to 60761. [2025-01-09 05:27:34,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60761 states, 50221 states have (on average 1.5489337129885905) internal successors, (77789), 56529 states have internal predecessors, (77789), 2698 states have call successors, (2698), 1534 states have call predecessors, (2698), 7840 states have return successors, (68234), 2953 states have call predecessors, (68234), 2698 states have call successors, (68234) [2025-01-09 05:27:35,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60761 states to 60761 states and 148721 transitions. [2025-01-09 05:27:35,436 INFO L78 Accepts]: Start accepts. Automaton has 60761 states and 148721 transitions. Word has length 88 [2025-01-09 05:27:35,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 05:27:35,436 INFO L471 AbstractCegarLoop]: Abstraction has 60761 states and 148721 transitions. [2025-01-09 05:27:35,437 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.0) internal successors, (78), 5 states have internal predecessors, (78), 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) [2025-01-09 05:27:35,437 INFO L276 IsEmpty]: Start isEmpty. Operand 60761 states and 148721 transitions. [2025-01-09 05:27:35,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2025-01-09 05:27:35,465 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 05:27:35,465 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] [2025-01-09 05:27:35,465 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-01-09 05:27:35,466 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 05:27:35,466 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 05:27:35,466 INFO L85 PathProgramCache]: Analyzing trace with hash -165217913, now seen corresponding path program 1 times [2025-01-09 05:27:35,466 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 05:27:35,466 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1591591199] [2025-01-09 05:27:35,467 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 05:27:35,467 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 05:27:35,476 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 88 statements into 1 equivalence classes. [2025-01-09 05:27:35,480 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 88 of 88 statements. [2025-01-09 05:27:35,481 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 05:27:35,481 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 05:27:35,514 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 05:27:35,514 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 05:27:35,514 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1591591199] [2025-01-09 05:27:35,514 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1591591199] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 05:27:35,514 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 05:27:35,514 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-01-09 05:27:35,514 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [475562946] [2025-01-09 05:27:35,515 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 05:27:35,515 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-09 05:27:35,515 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 05:27:35,515 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-09 05:27:35,515 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-09 05:27:35,515 INFO L87 Difference]: Start difference. First operand 60761 states and 148721 transitions. Second operand has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-01-09 05:27:39,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 05:27:39,978 INFO L93 Difference]: Finished difference Result 152332 states and 371440 transitions. [2025-01-09 05:27:39,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-09 05:27:39,978 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 88 [2025-01-09 05:27:39,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 05:27:40,610 INFO L225 Difference]: With dead ends: 152332 [2025-01-09 05:27:40,610 INFO L226 Difference]: Without dead ends: 93705 [2025-01-09 05:27:40,877 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-09 05:27:40,878 INFO L435 NwaCegarLoop]: 4446 mSDtfsCounter, 4406 mSDsluCounter, 4379 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4406 SdHoareTripleChecker+Valid, 8825 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-01-09 05:27:40,878 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4406 Valid, 8825 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-09 05:27:40,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93705 states.