./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/combinations/Problem05_label42+token_ring.12.cil-2.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_label42+token_ring.12.cil-2.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 48263e5b2fdfa125a212d9dd2b1aa7b4bc28734093ef4904b2507084a0cf2933 --- Real Ultimate output --- This is Ultimate 0.3.0-?-551b009-m [2025-01-09 05:17:16,669 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-09 05:17:16,707 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-01-09 05:17:16,711 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-09 05:17:16,712 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-09 05:17:16,735 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-09 05:17:16,735 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-09 05:17:16,735 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-09 05:17:16,736 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-01-09 05:17:16,736 INFO L153 SettingsManager]: * Use memory slicer=true [2025-01-09 05:17:16,736 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-09 05:17:16,736 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-09 05:17:16,736 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-09 05:17:16,736 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-09 05:17:16,736 INFO L153 SettingsManager]: * Use SBE=true [2025-01-09 05:17:16,736 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-09 05:17:16,736 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-09 05:17:16,743 INFO L153 SettingsManager]: * sizeof long=4 [2025-01-09 05:17:16,744 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-09 05:17:16,744 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-01-09 05:17:16,744 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-09 05:17:16,744 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-09 05:17:16,744 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-09 05:17:16,744 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-09 05:17:16,744 INFO L153 SettingsManager]: * sizeof long double=12 [2025-01-09 05:17:16,744 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-09 05:17:16,744 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-09 05:17:16,744 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-09 05:17:16,744 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-01-09 05:17:16,744 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 05:17:16,744 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 05:17:16,744 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 05:17:16,744 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 05:17:16,744 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-09 05:17:16,744 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 05:17:16,744 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 05:17:16,744 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 05:17:16,744 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 05:17:16,745 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-09 05:17:16,745 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-09 05:17:16,745 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-09 05:17:16,745 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-09 05:17:16,745 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-01-09 05:17:16,745 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-01-09 05:17:16,745 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-09 05:17:16,745 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-01-09 05:17:16,745 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-01-09 05:17:16,745 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-01-09 05:17:16,745 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 -> 48263e5b2fdfa125a212d9dd2b1aa7b4bc28734093ef4904b2507084a0cf2933 [2025-01-09 05:17:17,008 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-09 05:17:17,014 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-09 05:17:17,020 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-09 05:17:17,021 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-09 05:17:17,021 INFO L274 PluginConnector]: CDTParser initialized [2025-01-09 05:17:17,023 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/Problem05_label42+token_ring.12.cil-2.c [2025-01-09 05:17:18,294 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/f3988a160/5b57fbb3cd814faa94a3c85b3f0bfca4/FLAG7a73c26e2 [2025-01-09 05:17:18,903 INFO L384 CDTParser]: Found 1 translation units. [2025-01-09 05:17:18,904 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label42+token_ring.12.cil-2.c [2025-01-09 05:17:18,951 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/f3988a160/5b57fbb3cd814faa94a3c85b3f0bfca4/FLAG7a73c26e2 [2025-01-09 05:17:18,968 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/f3988a160/5b57fbb3cd814faa94a3c85b3f0bfca4 [2025-01-09 05:17:18,971 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-09 05:17:18,973 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-09 05:17:18,974 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-09 05:17:18,974 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-09 05:17:18,978 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-09 05:17:18,979 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 05:17:18" (1/1) ... [2025-01-09 05:17:18,979 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@49efd45b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:17:18, skipping insertion in model container [2025-01-09 05:17:18,980 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 05:17:18" (1/1) ... [2025-01-09 05:17:19,101 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-09 05:17:20,228 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_label42+token_ring.12.cil-2.c[378560,378573] [2025-01-09 05:17:20,258 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_label42+token_ring.12.cil-2.c[383339,383352] [2025-01-09 05:17:20,520 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 05:17:20,530 INFO L200 MainTranslator]: Completed pre-run [2025-01-09 05:17:21,039 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_label42+token_ring.12.cil-2.c[378560,378573] [2025-01-09 05:17:21,044 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_label42+token_ring.12.cil-2.c[383339,383352] [2025-01-09 05:17:21,069 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 05:17:21,118 INFO L204 MainTranslator]: Completed translation [2025-01-09 05:17:21,119 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:17:21 WrapperNode [2025-01-09 05:17:21,119 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-09 05:17:21,120 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-09 05:17:21,120 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-09 05:17:21,120 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-09 05:17:21,125 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:17:21" (1/1) ... [2025-01-09 05:17:21,179 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:17:21" (1/1) ... [2025-01-09 05:17:21,490 INFO L138 Inliner]: procedures = 68, calls = 77, calls flagged for inlining = 46, calls inlined = 46, statements flattened = 13185 [2025-01-09 05:17:21,491 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-09 05:17:21,491 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-09 05:17:21,491 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-09 05:17:21,491 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-09 05:17:21,498 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:17:21" (1/1) ... [2025-01-09 05:17:21,498 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:17:21" (1/1) ... [2025-01-09 05:17:21,535 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:17:21" (1/1) ... [2025-01-09 05:17:21,597 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 05:17:21,597 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:17:21" (1/1) ... [2025-01-09 05:17:21,597 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:17:21" (1/1) ... [2025-01-09 05:17:21,810 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:17:21" (1/1) ... [2025-01-09 05:17:21,831 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:17:21" (1/1) ... [2025-01-09 05:17:21,864 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:17:21" (1/1) ... [2025-01-09 05:17:21,895 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:17:21" (1/1) ... [2025-01-09 05:17:21,918 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:17:21" (1/1) ... [2025-01-09 05:17:21,965 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-09 05:17:21,966 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-09 05:17:21,968 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-09 05:17:21,968 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-09 05:17:21,969 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:17:21" (1/1) ... [2025-01-09 05:17:21,974 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 05:17:21,985 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 05:17:22,002 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 05:17:22,008 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 05:17:22,044 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-09 05:17:22,044 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2025-01-09 05:17:22,044 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2025-01-09 05:17:22,044 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2025-01-09 05:17:22,044 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2025-01-09 05:17:22,044 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2025-01-09 05:17:22,044 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2025-01-09 05:17:22,044 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2025-01-09 05:17:22,044 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2025-01-09 05:17:22,044 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2025-01-09 05:17:22,044 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2025-01-09 05:17:22,044 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2025-01-09 05:17:22,044 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2025-01-09 05:17:22,044 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-01-09 05:17:22,044 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-09 05:17:22,044 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-09 05:17:22,175 INFO L234 CfgBuilder]: Building ICFG [2025-01-09 05:17:22,176 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-09 05:17:29,120 INFO L? ?]: Removed 1755 outVars from TransFormulas that were not future-live. [2025-01-09 05:17:29,121 INFO L283 CfgBuilder]: Performing block encoding [2025-01-09 05:17:29,169 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-09 05:17:29,169 INFO L312 CfgBuilder]: Removed 16 assume(true) statements. [2025-01-09 05:17:29,170 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 05:17:29 BoogieIcfgContainer [2025-01-09 05:17:29,170 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-09 05:17:29,172 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-09 05:17:29,172 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-09 05:17:29,175 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-09 05:17:29,176 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.01 05:17:18" (1/3) ... [2025-01-09 05:17:29,176 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ff0c3ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 05:17:29, skipping insertion in model container [2025-01-09 05:17:29,176 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:17:21" (2/3) ... [2025-01-09 05:17:29,176 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ff0c3ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 05:17:29, skipping insertion in model container [2025-01-09 05:17:29,177 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 05:17:29" (3/3) ... [2025-01-09 05:17:29,177 INFO L128 eAbstractionObserver]: Analyzing ICFG Problem05_label42+token_ring.12.cil-2.c [2025-01-09 05:17:29,187 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-09 05:17:29,197 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG Problem05_label42+token_ring.12.cil-2.c that has 7 procedures, 2563 locations, 1 initial locations, 16 loop locations, and 2 error locations. [2025-01-09 05:17:29,369 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-09 05:17:29,384 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;@51a78d4e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-09 05:17:29,385 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2025-01-09 05:17:29,401 INFO L276 IsEmpty]: Start isEmpty. Operand has 2563 states, 2529 states have (on average 1.8366943455911426) internal successors, (4645), 2531 states have internal predecessors, (4645), 26 states have call successors, (26), 6 states have call predecessors, (26), 6 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2025-01-09 05:17:29,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2025-01-09 05:17:29,424 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 05:17:29,425 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 05:17:29,426 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 05:17:29,437 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 05:17:29,437 INFO L85 PathProgramCache]: Analyzing trace with hash 344092430, now seen corresponding path program 1 times [2025-01-09 05:17:29,447 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 05:17:29,465 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [617795492] [2025-01-09 05:17:29,466 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 05:17:29,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 05:17:29,620 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 176 statements into 1 equivalence classes. [2025-01-09 05:17:29,651 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 176 of 176 statements. [2025-01-09 05:17:29,651 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 05:17:29,651 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 05:17:29,898 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 05:17:29,898 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 05:17:29,900 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [617795492] [2025-01-09 05:17:29,900 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [617795492] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 05:17:29,900 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 05:17:29,901 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-09 05:17:29,902 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [987866392] [2025-01-09 05:17:29,902 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 05:17:29,905 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-09 05:17:29,905 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 05:17:29,921 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-09 05:17:29,921 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 05:17:29,927 INFO L87 Difference]: Start difference. First operand has 2563 states, 2529 states have (on average 1.8366943455911426) internal successors, (4645), 2531 states have internal predecessors, (4645), 26 states have call successors, (26), 6 states have call predecessors, (26), 6 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) Second operand has 3 states, 3 states have (on average 55.333333333333336) internal successors, (166), 3 states have internal predecessors, (166), 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 05:17:30,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 05:17:30,134 INFO L93 Difference]: Finished difference Result 5119 states and 9381 transitions. [2025-01-09 05:17:30,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-09 05:17:30,139 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.333333333333336) internal successors, (166), 3 states have internal predecessors, (166), 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 176 [2025-01-09 05:17:30,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 05:17:30,168 INFO L225 Difference]: With dead ends: 5119 [2025-01-09 05:17:30,168 INFO L226 Difference]: Without dead ends: 2496 [2025-01-09 05:17:30,188 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 05:17:30,190 INFO L435 NwaCegarLoop]: 4618 mSDtfsCounter, 590 mSDsluCounter, 4022 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 590 SdHoareTripleChecker+Valid, 8640 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 05:17:30,191 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [590 Valid, 8640 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 05:17:30,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2496 states. [2025-01-09 05:17:30,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2496 to 2496. [2025-01-09 05:17:30,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2496 states, 2462 states have (on average 1.826969943135662) internal successors, (4498), 2464 states have internal predecessors, (4498), 26 states have call successors, (26), 6 states have call predecessors, (26), 6 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2025-01-09 05:17:30,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2496 states to 2496 states and 4550 transitions. [2025-01-09 05:17:30,358 INFO L78 Accepts]: Start accepts. Automaton has 2496 states and 4550 transitions. Word has length 176 [2025-01-09 05:17:30,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 05:17:30,362 INFO L471 AbstractCegarLoop]: Abstraction has 2496 states and 4550 transitions. [2025-01-09 05:17:30,362 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.333333333333336) internal successors, (166), 3 states have internal predecessors, (166), 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 05:17:30,362 INFO L276 IsEmpty]: Start isEmpty. Operand 2496 states and 4550 transitions. [2025-01-09 05:17:30,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2025-01-09 05:17:30,370 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 05:17:30,370 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 05:17:30,370 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-01-09 05:17:30,370 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 05:17:30,371 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 05:17:30,371 INFO L85 PathProgramCache]: Analyzing trace with hash -164686384, now seen corresponding path program 1 times [2025-01-09 05:17:30,371 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 05:17:30,371 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1400284633] [2025-01-09 05:17:30,371 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 05:17:30,371 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 05:17:30,392 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 176 statements into 1 equivalence classes. [2025-01-09 05:17:30,413 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 176 of 176 statements. [2025-01-09 05:17:30,413 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 05:17:30,413 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 05:17:30,579 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 05:17:30,579 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 05:17:30,579 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1400284633] [2025-01-09 05:17:30,579 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1400284633] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 05:17:30,579 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 05:17:30,583 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-09 05:17:30,584 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2145149778] [2025-01-09 05:17:30,584 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 05:17:30,585 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-09 05:17:30,585 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 05:17:30,586 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-09 05:17:30,586 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 05:17:30,586 INFO L87 Difference]: Start difference. First operand 2496 states and 4550 transitions. Second operand has 3 states, 3 states have (on average 55.333333333333336) internal successors, (166), 3 states have internal predecessors, (166), 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 05:17:30,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 05:17:30,654 INFO L93 Difference]: Finished difference Result 2855 states and 5115 transitions. [2025-01-09 05:17:30,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-09 05:17:30,654 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.333333333333336) internal successors, (166), 3 states have internal predecessors, (166), 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 176 [2025-01-09 05:17:30,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 05:17:30,664 INFO L225 Difference]: With dead ends: 2855 [2025-01-09 05:17:30,664 INFO L226 Difference]: Without dead ends: 2496 [2025-01-09 05:17:30,666 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 05:17:30,667 INFO L435 NwaCegarLoop]: 4548 mSDtfsCounter, 576 mSDsluCounter, 3958 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 576 SdHoareTripleChecker+Valid, 8506 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 05:17:30,667 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [576 Valid, 8506 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 05:17:30,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2496 states. [2025-01-09 05:17:30,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2496 to 2496. [2025-01-09 05:17:30,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2496 states, 2462 states have (on average 1.8265637692932575) internal successors, (4497), 2464 states have internal predecessors, (4497), 26 states have call successors, (26), 6 states have call predecessors, (26), 6 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2025-01-09 05:17:30,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2496 states to 2496 states and 4549 transitions. [2025-01-09 05:17:30,737 INFO L78 Accepts]: Start accepts. Automaton has 2496 states and 4549 transitions. Word has length 176 [2025-01-09 05:17:30,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 05:17:30,737 INFO L471 AbstractCegarLoop]: Abstraction has 2496 states and 4549 transitions. [2025-01-09 05:17:30,737 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.333333333333336) internal successors, (166), 3 states have internal predecessors, (166), 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 05:17:30,737 INFO L276 IsEmpty]: Start isEmpty. Operand 2496 states and 4549 transitions. [2025-01-09 05:17:30,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2025-01-09 05:17:30,741 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 05:17:30,741 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 05:17:30,741 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-01-09 05:17:30,741 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 05:17:30,742 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 05:17:30,742 INFO L85 PathProgramCache]: Analyzing trace with hash 2030542482, now seen corresponding path program 1 times [2025-01-09 05:17:30,742 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 05:17:30,742 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1505408570] [2025-01-09 05:17:30,742 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 05:17:30,742 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 05:17:30,759 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 176 statements into 1 equivalence classes. [2025-01-09 05:17:30,776 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 176 of 176 statements. [2025-01-09 05:17:30,776 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 05:17:30,776 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 05:17:30,969 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 05:17:30,969 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 05:17:30,969 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1505408570] [2025-01-09 05:17:30,969 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1505408570] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 05:17:30,969 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 05:17:30,970 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-01-09 05:17:30,970 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1849915361] [2025-01-09 05:17:30,970 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 05:17:30,970 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-09 05:17:30,970 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 05:17:30,971 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-09 05:17:30,971 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-01-09 05:17:30,971 INFO L87 Difference]: Start difference. First operand 2496 states and 4549 transitions. Second operand has 5 states, 5 states have (on average 33.2) internal successors, (166), 4 states have internal predecessors, (166), 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 05:17:31,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 05:17:31,702 INFO L93 Difference]: Finished difference Result 3254 states and 5763 transitions. [2025-01-09 05:17:31,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-09 05:17:31,702 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 33.2) internal successors, (166), 4 states have internal predecessors, (166), 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 176 [2025-01-09 05:17:31,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 05:17:31,714 INFO L225 Difference]: With dead ends: 3254 [2025-01-09 05:17:31,714 INFO L226 Difference]: Without dead ends: 2899 [2025-01-09 05:17:31,716 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 05:17:31,717 INFO L435 NwaCegarLoop]: 4416 mSDtfsCounter, 5105 mSDsluCounter, 9086 mSDsCounter, 0 mSdLazyCounter, 632 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5125 SdHoareTripleChecker+Valid, 13502 SdHoareTripleChecker+Invalid, 688 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 632 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2025-01-09 05:17:31,717 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5125 Valid, 13502 Invalid, 688 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 632 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2025-01-09 05:17:31,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2899 states. [2025-01-09 05:17:31,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2899 to 2870. [2025-01-09 05:17:31,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2870 states, 2808 states have (on average 1.7987891737891737) internal successors, (5051), 2811 states have internal predecessors, (5051), 47 states have call successors, (47), 12 states have call predecessors, (47), 13 states have return successors, (48), 47 states have call predecessors, (48), 47 states have call successors, (48) [2025-01-09 05:17:31,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2870 states to 2870 states and 5146 transitions. [2025-01-09 05:17:31,778 INFO L78 Accepts]: Start accepts. Automaton has 2870 states and 5146 transitions. Word has length 176 [2025-01-09 05:17:31,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 05:17:31,778 INFO L471 AbstractCegarLoop]: Abstraction has 2870 states and 5146 transitions. [2025-01-09 05:17:31,778 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 33.2) internal successors, (166), 4 states have internal predecessors, (166), 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 05:17:31,778 INFO L276 IsEmpty]: Start isEmpty. Operand 2870 states and 5146 transitions. [2025-01-09 05:17:31,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2025-01-09 05:17:31,780 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 05:17:31,780 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 05:17:31,780 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-01-09 05:17:31,780 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 05:17:31,781 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 05:17:31,781 INFO L85 PathProgramCache]: Analyzing trace with hash -272042474, now seen corresponding path program 1 times [2025-01-09 05:17:31,781 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 05:17:31,781 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1259459332] [2025-01-09 05:17:31,781 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 05:17:31,781 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 05:17:31,789 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 176 statements into 1 equivalence classes. [2025-01-09 05:17:31,793 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 176 of 176 statements. [2025-01-09 05:17:31,793 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 05:17:31,793 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 05:17:31,935 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 05:17:31,935 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 05:17:31,935 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1259459332] [2025-01-09 05:17:31,935 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1259459332] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 05:17:31,936 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 05:17:31,936 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-01-09 05:17:31,936 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [423465987] [2025-01-09 05:17:31,936 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 05:17:31,936 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-01-09 05:17:31,936 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 05:17:31,937 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-01-09 05:17:31,937 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-01-09 05:17:31,937 INFO L87 Difference]: Start difference. First operand 2870 states and 5146 transitions. Second operand has 6 states, 6 states have (on average 27.666666666666668) internal successors, (166), 5 states have internal predecessors, (166), 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 05:17:32,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 05:17:32,633 INFO L93 Difference]: Finished difference Result 4079 states and 7102 transitions. [2025-01-09 05:17:32,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-01-09 05:17:32,634 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 27.666666666666668) internal successors, (166), 5 states have internal predecessors, (166), 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 176 [2025-01-09 05:17:32,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 05:17:32,645 INFO L225 Difference]: With dead ends: 4079 [2025-01-09 05:17:32,645 INFO L226 Difference]: Without dead ends: 3350 [2025-01-09 05:17:32,647 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 05:17:32,648 INFO L435 NwaCegarLoop]: 4731 mSDtfsCounter, 5115 mSDsluCounter, 14247 mSDsCounter, 0 mSdLazyCounter, 1082 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5135 SdHoareTripleChecker+Valid, 18978 SdHoareTripleChecker+Invalid, 1114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 1082 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2025-01-09 05:17:32,648 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5135 Valid, 18978 Invalid, 1114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 1082 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2025-01-09 05:17:32,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3350 states. [2025-01-09 05:17:32,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3350 to 3217. [2025-01-09 05:17:32,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3217 states, 3127 states have (on average 1.775183882315318) internal successors, (5551), 3131 states have internal predecessors, (5551), 68 states have call successors, (68), 18 states have call predecessors, (68), 20 states have return successors, (72), 69 states have call predecessors, (72), 68 states have call successors, (72) [2025-01-09 05:17:32,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3217 states to 3217 states and 5691 transitions. [2025-01-09 05:17:32,711 INFO L78 Accepts]: Start accepts. Automaton has 3217 states and 5691 transitions. Word has length 176 [2025-01-09 05:17:32,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 05:17:32,712 INFO L471 AbstractCegarLoop]: Abstraction has 3217 states and 5691 transitions. [2025-01-09 05:17:32,712 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 27.666666666666668) internal successors, (166), 5 states have internal predecessors, (166), 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 05:17:32,712 INFO L276 IsEmpty]: Start isEmpty. Operand 3217 states and 5691 transitions. [2025-01-09 05:17:32,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2025-01-09 05:17:32,714 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 05:17:32,714 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 05:17:32,714 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-01-09 05:17:32,714 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 05:17:32,714 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 05:17:32,714 INFO L85 PathProgramCache]: Analyzing trace with hash 1622291412, now seen corresponding path program 1 times [2025-01-09 05:17:32,714 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 05:17:32,714 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2055172460] [2025-01-09 05:17:32,714 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 05:17:32,714 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 05:17:32,724 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 176 statements into 1 equivalence classes. [2025-01-09 05:17:32,728 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 176 of 176 statements. [2025-01-09 05:17:32,728 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 05:17:32,728 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 05:17:32,858 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 05:17:32,858 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 05:17:32,858 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2055172460] [2025-01-09 05:17:32,859 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2055172460] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 05:17:32,859 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 05:17:32,859 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-01-09 05:17:32,859 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [192035636] [2025-01-09 05:17:32,859 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 05:17:32,859 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-01-09 05:17:32,859 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 05:17:32,860 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-01-09 05:17:32,860 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-01-09 05:17:32,860 INFO L87 Difference]: Start difference. First operand 3217 states and 5691 transitions. Second operand has 6 states, 6 states have (on average 27.666666666666668) internal successors, (166), 5 states have internal predecessors, (166), 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 05:17:33,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 05:17:33,886 INFO L93 Difference]: Finished difference Result 5190 states and 8876 transitions. [2025-01-09 05:17:33,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-01-09 05:17:33,886 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 27.666666666666668) internal successors, (166), 5 states have internal predecessors, (166), 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 176 [2025-01-09 05:17:33,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 05:17:33,904 INFO L225 Difference]: With dead ends: 5190 [2025-01-09 05:17:33,904 INFO L226 Difference]: Without dead ends: 4114 [2025-01-09 05:17:33,909 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 05:17:33,910 INFO L435 NwaCegarLoop]: 4458 mSDtfsCounter, 5142 mSDsluCounter, 13593 mSDsCounter, 0 mSdLazyCounter, 889 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5162 SdHoareTripleChecker+Valid, 18051 SdHoareTripleChecker+Invalid, 943 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 889 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2025-01-09 05:17:33,910 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5162 Valid, 18051 Invalid, 943 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 889 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2025-01-09 05:17:33,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4114 states. [2025-01-09 05:17:34,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4114 to 3960. [2025-01-09 05:17:34,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3960 states, 3812 states have (on average 1.742392444910808) internal successors, (6642), 3820 states have internal predecessors, (6642), 110 states have call successors, (110), 30 states have call predecessors, (110), 36 states have return successors, (126), 113 states have call predecessors, (126), 110 states have call successors, (126) [2025-01-09 05:17:34,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3960 states to 3960 states and 6878 transitions. [2025-01-09 05:17:34,036 INFO L78 Accepts]: Start accepts. Automaton has 3960 states and 6878 transitions. Word has length 176 [2025-01-09 05:17:34,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 05:17:34,036 INFO L471 AbstractCegarLoop]: Abstraction has 3960 states and 6878 transitions. [2025-01-09 05:17:34,037 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 27.666666666666668) internal successors, (166), 5 states have internal predecessors, (166), 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 05:17:34,037 INFO L276 IsEmpty]: Start isEmpty. Operand 3960 states and 6878 transitions. [2025-01-09 05:17:34,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2025-01-09 05:17:34,039 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 05:17:34,039 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 05:17:34,039 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-01-09 05:17:34,039 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 05:17:34,039 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 05:17:34,040 INFO L85 PathProgramCache]: Analyzing trace with hash -1226095018, now seen corresponding path program 1 times [2025-01-09 05:17:34,040 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 05:17:34,040 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1860328234] [2025-01-09 05:17:34,040 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 05:17:34,040 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 05:17:34,052 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 176 statements into 1 equivalence classes. [2025-01-09 05:17:34,056 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 176 of 176 statements. [2025-01-09 05:17:34,056 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 05:17:34,056 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 05:17:34,198 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 05:17:34,198 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 05:17:34,198 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1860328234] [2025-01-09 05:17:34,198 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1860328234] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 05:17:34,198 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 05:17:34,198 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-01-09 05:17:34,198 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1354732265] [2025-01-09 05:17:34,198 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 05:17:34,199 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-01-09 05:17:34,199 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 05:17:34,199 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-01-09 05:17:34,199 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-01-09 05:17:34,199 INFO L87 Difference]: Start difference. First operand 3960 states and 6878 transitions. Second operand has 6 states, 6 states have (on average 27.666666666666668) internal successors, (166), 5 states have internal predecessors, (166), 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 05:17:35,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 05:17:35,017 INFO L93 Difference]: Finished difference Result 7603 states and 12809 transitions. [2025-01-09 05:17:35,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-01-09 05:17:35,018 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 27.666666666666668) internal successors, (166), 5 states have internal predecessors, (166), 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 176 [2025-01-09 05:17:35,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 05:17:35,041 INFO L225 Difference]: With dead ends: 7603 [2025-01-09 05:17:35,041 INFO L226 Difference]: Without dead ends: 5784 [2025-01-09 05:17:35,047 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 05:17:35,048 INFO L435 NwaCegarLoop]: 4724 mSDtfsCounter, 5105 mSDsluCounter, 14226 mSDsCounter, 0 mSdLazyCounter, 1082 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5125 SdHoareTripleChecker+Valid, 18950 SdHoareTripleChecker+Invalid, 1114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 1082 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2025-01-09 05:17:35,048 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5125 Valid, 18950 Invalid, 1114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 1082 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2025-01-09 05:17:35,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5784 states. [2025-01-09 05:17:35,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5784 to 5587. [2025-01-09 05:17:35,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5587 states, 5317 states have (on average 1.708858378785029) internal successors, (9086), 5339 states have internal predecessors, (9086), 194 states have call successors, (194), 54 states have call predecessors, (194), 74 states have return successors, (258), 201 states have call predecessors, (258), 194 states have call successors, (258) [2025-01-09 05:17:35,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5587 states to 5587 states and 9538 transitions. [2025-01-09 05:17:35,216 INFO L78 Accepts]: Start accepts. Automaton has 5587 states and 9538 transitions. Word has length 176 [2025-01-09 05:17:35,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 05:17:35,216 INFO L471 AbstractCegarLoop]: Abstraction has 5587 states and 9538 transitions. [2025-01-09 05:17:35,217 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 27.666666666666668) internal successors, (166), 5 states have internal predecessors, (166), 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 05:17:35,217 INFO L276 IsEmpty]: Start isEmpty. Operand 5587 states and 9538 transitions. [2025-01-09 05:17:35,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2025-01-09 05:17:35,221 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 05:17:35,221 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 05:17:35,221 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-01-09 05:17:35,221 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 05:17:35,223 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 05:17:35,223 INFO L85 PathProgramCache]: Analyzing trace with hash 2145704852, now seen corresponding path program 1 times [2025-01-09 05:17:35,223 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 05:17:35,224 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1522734218] [2025-01-09 05:17:35,224 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 05:17:35,224 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 05:17:35,232 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 176 statements into 1 equivalence classes. [2025-01-09 05:17:35,237 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 176 of 176 statements. [2025-01-09 05:17:35,237 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 05:17:35,237 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 05:17:35,363 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 05:17:35,364 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 05:17:35,364 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1522734218] [2025-01-09 05:17:35,364 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1522734218] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 05:17:35,364 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 05:17:35,364 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-01-09 05:17:35,364 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [81380564] [2025-01-09 05:17:35,364 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 05:17:35,364 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-01-09 05:17:35,364 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 05:17:35,365 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-01-09 05:17:35,365 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-01-09 05:17:35,365 INFO L87 Difference]: Start difference. First operand 5587 states and 9538 transitions. Second operand has 6 states, 6 states have (on average 27.666666666666668) internal successors, (166), 5 states have internal predecessors, (166), 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 05:17:36,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 05:17:36,302 INFO L93 Difference]: Finished difference Result 12936 states and 21731 transitions. [2025-01-09 05:17:36,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-01-09 05:17:36,303 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 27.666666666666668) internal successors, (166), 5 states have internal predecessors, (166), 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 176 [2025-01-09 05:17:36,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 05:17:36,350 INFO L225 Difference]: With dead ends: 12936 [2025-01-09 05:17:36,351 INFO L226 Difference]: Without dead ends: 9490 [2025-01-09 05:17:36,364 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 05:17:36,365 INFO L435 NwaCegarLoop]: 4717 mSDtfsCounter, 5097 mSDsluCounter, 14207 mSDsCounter, 0 mSdLazyCounter, 1082 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5117 SdHoareTripleChecker+Valid, 18924 SdHoareTripleChecker+Invalid, 1114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 1082 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2025-01-09 05:17:36,366 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5117 Valid, 18924 Invalid, 1114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 1082 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2025-01-09 05:17:36,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9490 states. [2025-01-09 05:17:36,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9490 to 9219. [2025-01-09 05:17:36,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9219 states, 8687 states have (on average 1.6889605157131347) internal successors, (14672), 8755 states have internal predecessors, (14672), 362 states have call successors, (362), 102 states have call predecessors, (362), 168 states have return successors, (618), 377 states have call predecessors, (618), 362 states have call successors, (618) [2025-01-09 05:17:36,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9219 states to 9219 states and 15652 transitions. [2025-01-09 05:17:36,596 INFO L78 Accepts]: Start accepts. Automaton has 9219 states and 15652 transitions. Word has length 176 [2025-01-09 05:17:36,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 05:17:36,596 INFO L471 AbstractCegarLoop]: Abstraction has 9219 states and 15652 transitions. [2025-01-09 05:17:36,596 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 27.666666666666668) internal successors, (166), 5 states have internal predecessors, (166), 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 05:17:36,596 INFO L276 IsEmpty]: Start isEmpty. Operand 9219 states and 15652 transitions. [2025-01-09 05:17:36,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2025-01-09 05:17:36,601 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 05:17:36,601 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 05:17:36,601 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-01-09 05:17:36,602 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 05:17:36,602 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 05:17:36,602 INFO L85 PathProgramCache]: Analyzing trace with hash 1881057362, now seen corresponding path program 1 times [2025-01-09 05:17:36,602 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 05:17:36,602 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2128462510] [2025-01-09 05:17:36,602 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 05:17:36,603 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 05:17:36,613 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 176 statements into 1 equivalence classes. [2025-01-09 05:17:36,617 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 176 of 176 statements. [2025-01-09 05:17:36,618 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 05:17:36,618 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 05:17:36,738 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 05:17:36,738 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 05:17:36,738 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2128462510] [2025-01-09 05:17:36,738 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2128462510] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 05:17:36,738 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 05:17:36,738 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-01-09 05:17:36,739 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [269505773] [2025-01-09 05:17:36,739 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 05:17:36,739 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-01-09 05:17:36,739 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 05:17:36,739 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-01-09 05:17:36,740 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-01-09 05:17:36,740 INFO L87 Difference]: Start difference. First operand 9219 states and 15652 transitions. Second operand has 6 states, 6 states have (on average 27.666666666666668) internal successors, (166), 5 states have internal predecessors, (166), 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 05:17:37,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 05:17:37,787 INFO L93 Difference]: Finished difference Result 25096 states and 42815 transitions. [2025-01-09 05:17:37,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-01-09 05:17:37,787 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 27.666666666666668) internal successors, (166), 5 states have internal predecessors, (166), 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 176 [2025-01-09 05:17:37,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 05:17:37,849 INFO L225 Difference]: With dead ends: 25096 [2025-01-09 05:17:37,849 INFO L226 Difference]: Without dead ends: 18018 [2025-01-09 05:17:37,874 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 05:17:37,875 INFO L435 NwaCegarLoop]: 4714 mSDtfsCounter, 5092 mSDsluCounter, 14198 mSDsCounter, 0 mSdLazyCounter, 1082 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5112 SdHoareTripleChecker+Valid, 18912 SdHoareTripleChecker+Invalid, 1114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 1082 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2025-01-09 05:17:37,876 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5112 Valid, 18912 Invalid, 1114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 1082 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2025-01-09 05:17:37,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18018 states. [2025-01-09 05:17:38,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18018 to 17590. [2025-01-09 05:17:38,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17590 states, 16480 states have (on average 1.692233009708738) internal successors, (27888), 16694 states have internal predecessors, (27888), 698 states have call successors, (698), 198 states have call predecessors, (698), 410 states have return successors, (1722), 729 states have call predecessors, (1722), 698 states have call successors, (1722) [2025-01-09 05:17:38,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17590 states to 17590 states and 30308 transitions. [2025-01-09 05:17:38,455 INFO L78 Accepts]: Start accepts. Automaton has 17590 states and 30308 transitions. Word has length 176 [2025-01-09 05:17:38,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 05:17:38,455 INFO L471 AbstractCegarLoop]: Abstraction has 17590 states and 30308 transitions. [2025-01-09 05:17:38,456 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 27.666666666666668) internal successors, (166), 5 states have internal predecessors, (166), 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 05:17:38,456 INFO L276 IsEmpty]: Start isEmpty. Operand 17590 states and 30308 transitions. [2025-01-09 05:17:38,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2025-01-09 05:17:38,464 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 05:17:38,465 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:17:38,465 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-01-09 05:17:38,465 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 05:17:38,465 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 05:17:38,466 INFO L85 PathProgramCache]: Analyzing trace with hash -482784300, now seen corresponding path program 1 times [2025-01-09 05:17:38,466 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 05:17:38,466 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1423046051] [2025-01-09 05:17:38,466 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 05:17:38,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 05:17:38,474 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 176 statements into 1 equivalence classes. [2025-01-09 05:17:38,479 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 176 of 176 statements. [2025-01-09 05:17:38,479 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 05:17:38,479 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 05:17:38,598 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 05:17:38,599 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 05:17:38,599 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1423046051] [2025-01-09 05:17:38,599 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1423046051] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 05:17:38,599 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 05:17:38,599 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-01-09 05:17:38,602 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1203996723] [2025-01-09 05:17:38,602 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 05:17:38,603 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-09 05:17:38,603 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 05:17:38,603 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-09 05:17:38,603 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-01-09 05:17:38,603 INFO L87 Difference]: Start difference. First operand 17590 states and 30308 transitions. Second operand has 5 states, 5 states have (on average 33.2) internal successors, (166), 5 states have internal predecessors, (166), 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 05:17:39,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 05:17:39,456 INFO L93 Difference]: Finished difference Result 37939 states and 66782 transitions. [2025-01-09 05:17:39,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-09 05:17:39,456 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 33.2) internal successors, (166), 5 states have internal predecessors, (166), 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 176 [2025-01-09 05:17:39,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 05:17:39,534 INFO L225 Difference]: With dead ends: 37939 [2025-01-09 05:17:39,534 INFO L226 Difference]: Without dead ends: 22490 [2025-01-09 05:17:39,577 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 05:17:39,580 INFO L435 NwaCegarLoop]: 4393 mSDtfsCounter, 4761 mSDsluCounter, 8631 mSDsCounter, 0 mSdLazyCounter, 444 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4781 SdHoareTripleChecker+Valid, 13024 SdHoareTripleChecker+Invalid, 477 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 444 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-01-09 05:17:39,580 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4781 Valid, 13024 Invalid, 477 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 444 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-01-09 05:17:39,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22490 states. [2025-01-09 05:17:40,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22490 to 17590. [2025-01-09 05:17:40,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17590 states, 16480 states have (on average 1.6902305825242718) internal successors, (27855), 16694 states have internal predecessors, (27855), 698 states have call successors, (698), 198 states have call predecessors, (698), 410 states have return successors, (1722), 729 states have call predecessors, (1722), 698 states have call successors, (1722) [2025-01-09 05:17:40,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17590 states to 17590 states and 30275 transitions. [2025-01-09 05:17:40,426 INFO L78 Accepts]: Start accepts. Automaton has 17590 states and 30275 transitions. Word has length 176 [2025-01-09 05:17:40,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 05:17:40,426 INFO L471 AbstractCegarLoop]: Abstraction has 17590 states and 30275 transitions. [2025-01-09 05:17:40,426 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 33.2) internal successors, (166), 5 states have internal predecessors, (166), 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 05:17:40,427 INFO L276 IsEmpty]: Start isEmpty. Operand 17590 states and 30275 transitions. [2025-01-09 05:17:40,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2025-01-09 05:17:40,434 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 05:17:40,434 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 05:17:40,434 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-01-09 05:17:40,435 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 05:17:40,438 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 05:17:40,438 INFO L85 PathProgramCache]: Analyzing trace with hash -1805963246, now seen corresponding path program 1 times [2025-01-09 05:17:40,438 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 05:17:40,438 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [178083862] [2025-01-09 05:17:40,438 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 05:17:40,438 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 05:17:40,450 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 176 statements into 1 equivalence classes. [2025-01-09 05:17:40,456 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 176 of 176 statements. [2025-01-09 05:17:40,456 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 05:17:40,456 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 05:17:40,569 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 05:17:40,569 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 05:17:40,569 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [178083862] [2025-01-09 05:17:40,570 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [178083862] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 05:17:40,570 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 05:17:40,570 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-01-09 05:17:40,570 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [770363311] [2025-01-09 05:17:40,570 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 05:17:40,570 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-01-09 05:17:40,571 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 05:17:40,571 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-01-09 05:17:40,571 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-01-09 05:17:40,572 INFO L87 Difference]: Start difference. First operand 17590 states and 30275 transitions. Second operand has 6 states, 6 states have (on average 27.666666666666668) internal successors, (166), 5 states have internal predecessors, (166), 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 05:17:41,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 05:17:41,812 INFO L93 Difference]: Finished difference Result 53391 states and 94082 transitions. [2025-01-09 05:17:41,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-01-09 05:17:41,813 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 27.666666666666668) internal successors, (166), 5 states have internal predecessors, (166), 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 176 [2025-01-09 05:17:41,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 05:17:41,921 INFO L225 Difference]: With dead ends: 53391 [2025-01-09 05:17:41,922 INFO L226 Difference]: Without dead ends: 37942 [2025-01-09 05:17:41,962 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 05:17:41,962 INFO L435 NwaCegarLoop]: 4706 mSDtfsCounter, 5079 mSDsluCounter, 14175 mSDsCounter, 0 mSdLazyCounter, 1082 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5099 SdHoareTripleChecker+Valid, 18881 SdHoareTripleChecker+Invalid, 1114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 1082 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2025-01-09 05:17:41,963 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5099 Valid, 18881 Invalid, 1114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 1082 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2025-01-09 05:17:41,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37942 states. [2025-01-09 05:17:42,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37942 to 37248. [2025-01-09 05:17:43,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37248 states, 34820 states have (on average 1.7112291786329696) internal successors, (59585), 35488 states have internal predecessors, (59585), 1370 states have call successors, (1370), 390 states have call predecessors, (1370), 1056 states have return successors, (5466), 1433 states have call predecessors, (5466), 1370 states have call successors, (5466) [2025-01-09 05:17:43,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37248 states to 37248 states and 66421 transitions. [2025-01-09 05:17:43,209 INFO L78 Accepts]: Start accepts. Automaton has 37248 states and 66421 transitions. Word has length 176 [2025-01-09 05:17:43,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 05:17:43,210 INFO L471 AbstractCegarLoop]: Abstraction has 37248 states and 66421 transitions. [2025-01-09 05:17:43,210 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 27.666666666666668) internal successors, (166), 5 states have internal predecessors, (166), 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 05:17:43,210 INFO L276 IsEmpty]: Start isEmpty. Operand 37248 states and 66421 transitions. [2025-01-09 05:17:43,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2025-01-09 05:17:43,223 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 05:17:43,223 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 05:17:43,224 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-01-09 05:17:43,224 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 05:17:43,224 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 05:17:43,225 INFO L85 PathProgramCache]: Analyzing trace with hash 91016212, now seen corresponding path program 1 times [2025-01-09 05:17:43,225 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 05:17:43,225 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1774953943] [2025-01-09 05:17:43,225 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 05:17:43,225 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 05:17:43,237 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 176 statements into 1 equivalence classes. [2025-01-09 05:17:43,242 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 176 of 176 statements. [2025-01-09 05:17:43,242 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 05:17:43,242 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 05:17:43,379 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 05:17:43,379 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 05:17:43,379 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1774953943] [2025-01-09 05:17:43,379 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1774953943] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 05:17:43,379 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 05:17:43,380 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-01-09 05:17:43,380 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [644743980] [2025-01-09 05:17:43,380 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 05:17:43,380 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-01-09 05:17:43,380 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 05:17:43,380 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-01-09 05:17:43,380 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-01-09 05:17:43,381 INFO L87 Difference]: Start difference. First operand 37248 states and 66421 transitions. Second operand has 6 states, 6 states have (on average 27.666666666666668) internal successors, (166), 5 states have internal predecessors, (166), 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 05:17:45,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 05:17:45,955 INFO L93 Difference]: Finished difference Result 121411 states and 225266 transitions. [2025-01-09 05:17:45,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-01-09 05:17:45,956 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 27.666666666666668) internal successors, (166), 5 states have internal predecessors, (166), 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 176 [2025-01-09 05:17:45,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 05:17:46,356 INFO L225 Difference]: With dead ends: 121411 [2025-01-09 05:17:46,356 INFO L226 Difference]: Without dead ends: 86304 [2025-01-09 05:17:46,501 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 05:17:46,502 INFO L435 NwaCegarLoop]: 4703 mSDtfsCounter, 5074 mSDsluCounter, 14166 mSDsCounter, 0 mSdLazyCounter, 1082 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5094 SdHoareTripleChecker+Valid, 18869 SdHoareTripleChecker+Invalid, 1114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 1082 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2025-01-09 05:17:46,502 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5094 Valid, 18869 Invalid, 1114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 1082 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2025-01-09 05:17:46,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86304 states. [2025-01-09 05:17:49,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86304 to 85069. [2025-01-09 05:17:49,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85069 states, 79519 states have (on average 1.7425395188571284) internal successors, (138565), 81581 states have internal predecessors, (138565), 2714 states have call successors, (2714), 774 states have call predecessors, (2714), 2834 states have return successors, (19098), 2841 states have call predecessors, (19098), 2714 states have call successors, (19098) [2025-01-09 05:17:49,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85069 states to 85069 states and 160377 transitions. [2025-01-09 05:17:49,889 INFO L78 Accepts]: Start accepts. Automaton has 85069 states and 160377 transitions. Word has length 176 [2025-01-09 05:17:49,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 05:17:49,890 INFO L471 AbstractCegarLoop]: Abstraction has 85069 states and 160377 transitions. [2025-01-09 05:17:49,890 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 27.666666666666668) internal successors, (166), 5 states have internal predecessors, (166), 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 05:17:49,890 INFO L276 IsEmpty]: Start isEmpty. Operand 85069 states and 160377 transitions. [2025-01-09 05:17:49,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2025-01-09 05:17:49,911 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 05:17:49,911 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 05:17:49,911 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2025-01-09 05:17:49,911 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 05:17:49,911 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 05:17:49,912 INFO L85 PathProgramCache]: Analyzing trace with hash 429303762, now seen corresponding path program 1 times [2025-01-09 05:17:49,912 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 05:17:49,912 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [769289209] [2025-01-09 05:17:49,912 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 05:17:49,912 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 05:17:49,921 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 176 statements into 1 equivalence classes. [2025-01-09 05:17:49,925 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 176 of 176 statements. [2025-01-09 05:17:49,925 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 05:17:49,925 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 05:17:50,025 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 05:17:50,026 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 05:17:50,026 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [769289209] [2025-01-09 05:17:50,026 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [769289209] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 05:17:50,027 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 05:17:50,027 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-01-09 05:17:50,027 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1969709739] [2025-01-09 05:17:50,027 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 05:17:50,027 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-01-09 05:17:50,027 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 05:17:50,028 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-01-09 05:17:50,028 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-01-09 05:17:50,028 INFO L87 Difference]: Start difference. First operand 85069 states and 160377 transitions. Second operand has 6 states, 6 states have (on average 27.666666666666668) internal successors, (166), 5 states have internal predecessors, (166), 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 05:17:56,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 05:17:56,029 INFO L93 Difference]: Finished difference Result 289952 states and 577428 transitions. [2025-01-09 05:17:56,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-01-09 05:17:56,029 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 27.666666666666668) internal successors, (166), 5 states have internal predecessors, (166), 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 176 [2025-01-09 05:17:56,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 05:17:57,252 INFO L225 Difference]: With dead ends: 289952 [2025-01-09 05:17:57,252 INFO L226 Difference]: Without dead ends: 207024 [2025-01-09 05:17:57,569 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 05:17:57,570 INFO L435 NwaCegarLoop]: 4441 mSDtfsCounter, 5113 mSDsluCounter, 13541 mSDsCounter, 0 mSdLazyCounter, 889 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5133 SdHoareTripleChecker+Valid, 17982 SdHoareTripleChecker+Invalid, 943 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 889 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2025-01-09 05:17:57,574 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5133 Valid, 17982 Invalid, 943 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 889 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2025-01-09 05:17:57,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207024 states.