./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/combinations/Problem05_label45+token_ring.15.cil.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_label45+token_ring.15.cil.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 9f6b3df944a21b7c8707e83029bbb1a58d3af14f3c6a747de4c932a385afddd0 --- Real Ultimate output --- This is Ultimate 0.3.0-?-551b009-m [2025-01-09 05:22:37,214 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-09 05:22:37,280 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-01-09 05:22:37,286 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-09 05:22:37,289 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-09 05:22:37,313 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-09 05:22:37,314 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-09 05:22:37,314 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-09 05:22:37,315 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-01-09 05:22:37,315 INFO L153 SettingsManager]: * Use memory slicer=true [2025-01-09 05:22:37,315 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-09 05:22:37,315 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-09 05:22:37,316 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-09 05:22:37,316 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-09 05:22:37,316 INFO L153 SettingsManager]: * Use SBE=true [2025-01-09 05:22:37,316 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-09 05:22:37,317 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-09 05:22:37,317 INFO L153 SettingsManager]: * sizeof long=4 [2025-01-09 05:22:37,317 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-09 05:22:37,317 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-01-09 05:22:37,317 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-09 05:22:37,317 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-09 05:22:37,317 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-09 05:22:37,317 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-09 05:22:37,318 INFO L153 SettingsManager]: * sizeof long double=12 [2025-01-09 05:22:37,318 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-09 05:22:37,318 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-09 05:22:37,318 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-09 05:22:37,318 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-01-09 05:22:37,318 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 05:22:37,318 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 05:22:37,318 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 05:22:37,318 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 05:22:37,318 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-09 05:22:37,318 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 05:22:37,318 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 05:22:37,318 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 05:22:37,318 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 05:22:37,318 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-09 05:22:37,318 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-09 05:22:37,319 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-09 05:22:37,319 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-09 05:22:37,319 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-01-09 05:22:37,319 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-01-09 05:22:37,319 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-09 05:22:37,319 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-01-09 05:22:37,319 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-01-09 05:22:37,319 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-01-09 05:22:37,319 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 -> 9f6b3df944a21b7c8707e83029bbb1a58d3af14f3c6a747de4c932a385afddd0 [2025-01-09 05:22:37,573 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-09 05:22:37,578 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-09 05:22:37,580 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-09 05:22:37,580 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-09 05:22:37,581 INFO L274 PluginConnector]: CDTParser initialized [2025-01-09 05:22:37,581 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/Problem05_label45+token_ring.15.cil.c [2025-01-09 05:22:38,778 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/fe1eeed4a/ad27c66be3a14144b0f6273d501b77dc/FLAG2d2cfedbe [2025-01-09 05:22:39,441 INFO L384 CDTParser]: Found 1 translation units. [2025-01-09 05:22:39,443 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label45+token_ring.15.cil.c [2025-01-09 05:22:39,493 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/fe1eeed4a/ad27c66be3a14144b0f6273d501b77dc/FLAG2d2cfedbe [2025-01-09 05:22:39,508 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/fe1eeed4a/ad27c66be3a14144b0f6273d501b77dc [2025-01-09 05:22:39,510 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-09 05:22:39,512 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-09 05:22:39,513 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-09 05:22:39,514 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-09 05:22:39,517 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-09 05:22:39,517 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 05:22:39" (1/1) ... [2025-01-09 05:22:39,519 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@78342a3f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:22:39, skipping insertion in model container [2025-01-09 05:22:39,519 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 05:22:39" (1/1) ... [2025-01-09 05:22:39,657 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-09 05:22:41,028 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_label45+token_ring.15.cil.c[380323,380336] [2025-01-09 05:22:41,072 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_label45+token_ring.15.cil.c[383339,383352] [2025-01-09 05:22:41,346 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 05:22:41,356 INFO L200 MainTranslator]: Completed pre-run [2025-01-09 05:22:41,876 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_label45+token_ring.15.cil.c[380323,380336] [2025-01-09 05:22:41,880 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_label45+token_ring.15.cil.c[383339,383352] [2025-01-09 05:22:41,894 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 05:22:41,947 INFO L204 MainTranslator]: Completed translation [2025-01-09 05:22:41,949 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:22:41 WrapperNode [2025-01-09 05:22:41,949 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-09 05:22:41,950 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-09 05:22:41,950 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-09 05:22:41,950 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-09 05:22:41,954 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:22:41" (1/1) ... [2025-01-09 05:22:42,011 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:22:41" (1/1) ... [2025-01-09 05:22:42,452 INFO L138 Inliner]: procedures = 70, calls = 81, calls flagged for inlining = 47, calls inlined = 47, statements flattened = 13246 [2025-01-09 05:22:42,452 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-09 05:22:42,453 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-09 05:22:42,453 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-09 05:22:42,453 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-09 05:22:42,459 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:22:41" (1/1) ... [2025-01-09 05:22:42,460 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:22:41" (1/1) ... [2025-01-09 05:22:42,492 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:22:41" (1/1) ... [2025-01-09 05:22:42,564 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 05:22:42,564 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:22:41" (1/1) ... [2025-01-09 05:22:42,564 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:22:41" (1/1) ... [2025-01-09 05:22:42,727 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:22:41" (1/1) ... [2025-01-09 05:22:42,744 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:22:41" (1/1) ... [2025-01-09 05:22:42,803 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:22:41" (1/1) ... [2025-01-09 05:22:42,827 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:22:41" (1/1) ... [2025-01-09 05:22:42,852 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:22:41" (1/1) ... [2025-01-09 05:22:42,900 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-09 05:22:42,902 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-09 05:22:42,903 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-09 05:22:42,903 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-09 05:22:42,904 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:22:41" (1/1) ... [2025-01-09 05:22:42,907 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 05:22:42,916 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 05:22:42,928 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 05:22:42,936 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 05:22:42,961 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-09 05:22:42,961 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2025-01-09 05:22:42,961 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2025-01-09 05:22:42,961 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2025-01-09 05:22:42,961 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2025-01-09 05:22:42,961 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2025-01-09 05:22:42,961 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2025-01-09 05:22:42,961 INFO L130 BoogieDeclarations]: Found specification of procedure error [2025-01-09 05:22:42,961 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2025-01-09 05:22:42,962 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2025-01-09 05:22:42,962 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2025-01-09 05:22:42,962 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2025-01-09 05:22:42,962 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2025-01-09 05:22:42,962 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2025-01-09 05:22:42,962 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2025-01-09 05:22:42,962 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-01-09 05:22:42,963 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-09 05:22:42,963 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-09 05:22:43,083 INFO L234 CfgBuilder]: Building ICFG [2025-01-09 05:22:43,085 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-09 05:22:50,066 INFO L? ?]: Removed 1765 outVars from TransFormulas that were not future-live. [2025-01-09 05:22:50,067 INFO L283 CfgBuilder]: Performing block encoding [2025-01-09 05:22:50,118 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-09 05:22:50,119 INFO L312 CfgBuilder]: Removed 17 assume(true) statements. [2025-01-09 05:22:50,119 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 05:22:50 BoogieIcfgContainer [2025-01-09 05:22:50,119 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-09 05:22:50,121 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-09 05:22:50,121 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-09 05:22:50,124 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-09 05:22:50,124 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.01 05:22:39" (1/3) ... [2025-01-09 05:22:50,124 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33e28575 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 05:22:50, skipping insertion in model container [2025-01-09 05:22:50,124 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:22:41" (2/3) ... [2025-01-09 05:22:50,124 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33e28575 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 05:22:50, skipping insertion in model container [2025-01-09 05:22:50,124 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 05:22:50" (3/3) ... [2025-01-09 05:22:50,125 INFO L128 eAbstractionObserver]: Analyzing ICFG Problem05_label45+token_ring.15.cil.c [2025-01-09 05:22:50,135 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-09 05:22:50,137 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG Problem05_label45+token_ring.15.cil.c that has 8 procedures, 2594 locations, 1 initial locations, 17 loop locations, and 2 error locations. [2025-01-09 05:22:50,205 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-09 05:22:50,213 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;@37646fa9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-09 05:22:50,213 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2025-01-09 05:22:50,220 INFO L276 IsEmpty]: Start isEmpty. Operand has 2594 states, 2556 states have (on average 1.8352895148669797) internal successors, (4691), 2560 states have internal predecessors, (4691), 29 states have call successors, (29), 7 states have call predecessors, (29), 7 states have return successors, (29), 28 states have call predecessors, (29), 29 states have call successors, (29) [2025-01-09 05:22:50,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2025-01-09 05:22:50,232 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 05:22:50,232 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 05:22:50,233 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 05:22:50,236 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 05:22:50,236 INFO L85 PathProgramCache]: Analyzing trace with hash -591398127, now seen corresponding path program 1 times [2025-01-09 05:22:50,241 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 05:22:50,241 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [363456385] [2025-01-09 05:22:50,241 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 05:22:50,242 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 05:22:50,305 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 188 statements into 1 equivalence classes. [2025-01-09 05:22:50,324 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 188 of 188 statements. [2025-01-09 05:22:50,324 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 05:22:50,325 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 05:22:50,545 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 05:22:50,545 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 05:22:50,545 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [363456385] [2025-01-09 05:22:50,546 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [363456385] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 05:22:50,546 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 05:22:50,546 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-09 05:22:50,547 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [257134804] [2025-01-09 05:22:50,547 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 05:22:50,550 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-09 05:22:50,551 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 05:22:50,565 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-09 05:22:50,566 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 05:22:50,573 INFO L87 Difference]: Start difference. First operand has 2594 states, 2556 states have (on average 1.8352895148669797) internal successors, (4691), 2560 states have internal predecessors, (4691), 29 states have call successors, (29), 7 states have call predecessors, (29), 7 states have return successors, (29), 28 states have call predecessors, (29), 29 states have call successors, (29) Second operand has 3 states, 3 states have (on average 59.0) internal successors, (177), 3 states have internal predecessors, (177), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-01-09 05:22:50,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 05:22:50,745 INFO L93 Difference]: Finished difference Result 5178 states and 9481 transitions. [2025-01-09 05:22:50,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-09 05:22:50,747 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 59.0) internal successors, (177), 3 states have internal predecessors, (177), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 188 [2025-01-09 05:22:50,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 05:22:50,768 INFO L225 Difference]: With dead ends: 5178 [2025-01-09 05:22:50,769 INFO L226 Difference]: Without dead ends: 2526 [2025-01-09 05:22:50,781 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 05:22:50,783 INFO L435 NwaCegarLoop]: 4667 mSDtfsCounter, 637 mSDsluCounter, 4022 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 637 SdHoareTripleChecker+Valid, 8689 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 05:22:50,783 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [637 Valid, 8689 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 05:22:50,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2526 states. [2025-01-09 05:22:50,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2526 to 2526. [2025-01-09 05:22:50,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2526 states, 2489 states have (on average 1.825231016472479) internal successors, (4543), 2492 states have internal predecessors, (4543), 29 states have call successors, (29), 7 states have call predecessors, (29), 6 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2025-01-09 05:22:50,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2526 states to 2526 states and 4599 transitions. [2025-01-09 05:22:50,981 INFO L78 Accepts]: Start accepts. Automaton has 2526 states and 4599 transitions. Word has length 188 [2025-01-09 05:22:50,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 05:22:50,983 INFO L471 AbstractCegarLoop]: Abstraction has 2526 states and 4599 transitions. [2025-01-09 05:22:50,983 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 59.0) internal successors, (177), 3 states have internal predecessors, (177), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-01-09 05:22:50,983 INFO L276 IsEmpty]: Start isEmpty. Operand 2526 states and 4599 transitions. [2025-01-09 05:22:50,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2025-01-09 05:22:50,994 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 05:22:50,994 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 05:22:50,995 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-01-09 05:22:50,995 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 05:22:50,996 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 05:22:50,997 INFO L85 PathProgramCache]: Analyzing trace with hash -1197172909, now seen corresponding path program 1 times [2025-01-09 05:22:50,997 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 05:22:50,997 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [218897814] [2025-01-09 05:22:50,997 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 05:22:50,997 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 05:22:51,022 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 188 statements into 1 equivalence classes. [2025-01-09 05:22:51,040 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 188 of 188 statements. [2025-01-09 05:22:51,040 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 05:22:51,040 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 05:22:51,183 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 05:22:51,184 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 05:22:51,184 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [218897814] [2025-01-09 05:22:51,184 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [218897814] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 05:22:51,184 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 05:22:51,184 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-09 05:22:51,184 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1580102646] [2025-01-09 05:22:51,185 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 05:22:51,186 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-09 05:22:51,186 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 05:22:51,187 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-09 05:22:51,188 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 05:22:51,188 INFO L87 Difference]: Start difference. First operand 2526 states and 4599 transitions. Second operand has 3 states, 3 states have (on average 59.0) internal successors, (177), 3 states have internal predecessors, (177), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-01-09 05:22:51,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 05:22:51,260 INFO L93 Difference]: Finished difference Result 2913 states and 5209 transitions. [2025-01-09 05:22:51,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-09 05:22:51,261 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 59.0) internal successors, (177), 3 states have internal predecessors, (177), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 188 [2025-01-09 05:22:51,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 05:22:51,271 INFO L225 Difference]: With dead ends: 2913 [2025-01-09 05:22:51,272 INFO L226 Difference]: Without dead ends: 2526 [2025-01-09 05:22:51,274 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 05:22:51,274 INFO L435 NwaCegarLoop]: 4597 mSDtfsCounter, 623 mSDsluCounter, 3958 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 623 SdHoareTripleChecker+Valid, 8555 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 05:22:51,275 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [623 Valid, 8555 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 05:22:51,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2526 states. [2025-01-09 05:22:51,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2526 to 2526. [2025-01-09 05:22:51,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2526 states, 2489 states have (on average 1.8248292486942548) internal successors, (4542), 2492 states have internal predecessors, (4542), 29 states have call successors, (29), 7 states have call predecessors, (29), 6 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2025-01-09 05:22:51,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2526 states to 2526 states and 4598 transitions. [2025-01-09 05:22:51,348 INFO L78 Accepts]: Start accepts. Automaton has 2526 states and 4598 transitions. Word has length 188 [2025-01-09 05:22:51,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 05:22:51,348 INFO L471 AbstractCegarLoop]: Abstraction has 2526 states and 4598 transitions. [2025-01-09 05:22:51,348 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 59.0) internal successors, (177), 3 states have internal predecessors, (177), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-01-09 05:22:51,348 INFO L276 IsEmpty]: Start isEmpty. Operand 2526 states and 4598 transitions. [2025-01-09 05:22:51,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2025-01-09 05:22:51,354 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 05:22:51,354 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 05:22:51,354 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-01-09 05:22:51,354 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 05:22:51,355 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 05:22:51,355 INFO L85 PathProgramCache]: Analyzing trace with hash -507341419, now seen corresponding path program 1 times [2025-01-09 05:22:51,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 05:22:51,355 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [122203635] [2025-01-09 05:22:51,355 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 05:22:51,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 05:22:51,388 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 188 statements into 1 equivalence classes. [2025-01-09 05:22:51,417 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 188 of 188 statements. [2025-01-09 05:22:51,417 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 05:22:51,417 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 05:22:51,663 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 05:22:51,665 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 05:22:51,665 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [122203635] [2025-01-09 05:22:51,665 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [122203635] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 05:22:51,666 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 05:22:51,666 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-01-09 05:22:51,666 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1258385007] [2025-01-09 05:22:51,666 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 05:22:51,667 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-09 05:22:51,667 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 05:22:51,669 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-09 05:22:51,669 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-01-09 05:22:51,670 INFO L87 Difference]: Start difference. First operand 2526 states and 4598 transitions. Second operand has 5 states, 5 states have (on average 35.4) internal successors, (177), 4 states have internal predecessors, (177), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-01-09 05:22:52,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 05:22:52,433 INFO L93 Difference]: Finished difference Result 3346 states and 5914 transitions. [2025-01-09 05:22:52,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-09 05:22:52,433 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 35.4) internal successors, (177), 4 states have internal predecessors, (177), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 188 [2025-01-09 05:22:52,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 05:22:52,447 INFO L225 Difference]: With dead ends: 3346 [2025-01-09 05:22:52,447 INFO L226 Difference]: Without dead ends: 2962 [2025-01-09 05:22:52,450 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 05:22:52,451 INFO L435 NwaCegarLoop]: 4455 mSDtfsCounter, 5200 mSDsluCounter, 9187 mSDsCounter, 0 mSdLazyCounter, 678 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5221 SdHoareTripleChecker+Valid, 13642 SdHoareTripleChecker+Invalid, 740 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 678 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2025-01-09 05:22:52,451 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5221 Valid, 13642 Invalid, 740 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 678 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2025-01-09 05:22:52,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2962 states. [2025-01-09 05:22:52,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2962 to 2929. [2025-01-09 05:22:52,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2929 states, 2863 states have (on average 1.7963674467341948) internal successors, (5143), 2867 states have internal predecessors, (5143), 51 states have call successors, (51), 13 states have call predecessors, (51), 13 states have return successors, (50), 49 states have call predecessors, (50), 49 states have call successors, (50) [2025-01-09 05:22:52,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2929 states to 2929 states and 5244 transitions. [2025-01-09 05:22:52,531 INFO L78 Accepts]: Start accepts. Automaton has 2929 states and 5244 transitions. Word has length 188 [2025-01-09 05:22:52,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 05:22:52,531 INFO L471 AbstractCegarLoop]: Abstraction has 2929 states and 5244 transitions. [2025-01-09 05:22:52,531 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 35.4) internal successors, (177), 4 states have internal predecessors, (177), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-01-09 05:22:52,531 INFO L276 IsEmpty]: Start isEmpty. Operand 2929 states and 5244 transitions. [2025-01-09 05:22:52,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2025-01-09 05:22:52,533 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 05:22:52,534 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 05:22:52,534 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-01-09 05:22:52,534 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 05:22:52,534 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 05:22:52,535 INFO L85 PathProgramCache]: Analyzing trace with hash -303677039, now seen corresponding path program 1 times [2025-01-09 05:22:52,535 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 05:22:52,535 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [19295795] [2025-01-09 05:22:52,535 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 05:22:52,535 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 05:22:52,547 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 188 statements into 1 equivalence classes. [2025-01-09 05:22:52,552 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 188 of 188 statements. [2025-01-09 05:22:52,553 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 05:22:52,553 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 05:22:52,747 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 05:22:52,748 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 05:22:52,748 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [19295795] [2025-01-09 05:22:52,748 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [19295795] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 05:22:52,748 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 05:22:52,748 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-01-09 05:22:52,748 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1831369592] [2025-01-09 05:22:52,748 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 05:22:52,748 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-01-09 05:22:52,748 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 05:22:52,749 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-01-09 05:22:52,749 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-01-09 05:22:52,749 INFO L87 Difference]: Start difference. First operand 2929 states and 5244 transitions. Second operand has 6 states, 6 states have (on average 29.5) internal successors, (177), 5 states have internal predecessors, (177), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-01-09 05:22:53,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 05:22:53,621 INFO L93 Difference]: Finished difference Result 4235 states and 7363 transitions. [2025-01-09 05:22:53,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-01-09 05:22:53,623 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 29.5) internal successors, (177), 5 states have internal predecessors, (177), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 188 [2025-01-09 05:22:53,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 05:22:53,636 INFO L225 Difference]: With dead ends: 4235 [2025-01-09 05:22:53,636 INFO L226 Difference]: Without dead ends: 3448 [2025-01-09 05:22:53,639 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 05:22:53,641 INFO L435 NwaCegarLoop]: 4800 mSDtfsCounter, 5211 mSDsluCounter, 14458 mSDsCounter, 0 mSdLazyCounter, 1163 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5232 SdHoareTripleChecker+Valid, 19258 SdHoareTripleChecker+Invalid, 1198 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 1163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2025-01-09 05:22:53,641 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5232 Valid, 19258 Invalid, 1198 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 1163 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2025-01-09 05:22:53,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3448 states. [2025-01-09 05:22:53,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3448 to 3303. [2025-01-09 05:22:53,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3303 states, 3208 states have (on average 1.7724438902743143) internal successors, (5686), 3213 states have internal predecessors, (5686), 73 states have call successors, (73), 19 states have call predecessors, (73), 20 states have return successors, (75), 72 states have call predecessors, (75), 71 states have call successors, (75) [2025-01-09 05:22:53,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3303 states to 3303 states and 5834 transitions. [2025-01-09 05:22:53,750 INFO L78 Accepts]: Start accepts. Automaton has 3303 states and 5834 transitions. Word has length 188 [2025-01-09 05:22:53,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 05:22:53,751 INFO L471 AbstractCegarLoop]: Abstraction has 3303 states and 5834 transitions. [2025-01-09 05:22:53,751 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 29.5) internal successors, (177), 5 states have internal predecessors, (177), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-01-09 05:22:53,751 INFO L276 IsEmpty]: Start isEmpty. Operand 3303 states and 5834 transitions. [2025-01-09 05:22:53,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2025-01-09 05:22:53,754 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 05:22:53,754 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 05:22:53,755 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-01-09 05:22:53,755 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 05:22:53,755 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 05:22:53,755 INFO L85 PathProgramCache]: Analyzing trace with hash 194879763, now seen corresponding path program 1 times [2025-01-09 05:22:53,756 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 05:22:53,756 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [716664303] [2025-01-09 05:22:53,756 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 05:22:53,756 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 05:22:53,770 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 188 statements into 1 equivalence classes. [2025-01-09 05:22:53,780 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 188 of 188 statements. [2025-01-09 05:22:53,781 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 05:22:53,781 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 05:22:54,011 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 05:22:54,012 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 05:22:54,013 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [716664303] [2025-01-09 05:22:54,013 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [716664303] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 05:22:54,013 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 05:22:54,013 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-01-09 05:22:54,013 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1989722624] [2025-01-09 05:22:54,013 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 05:22:54,014 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-01-09 05:22:54,014 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 05:22:54,014 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-01-09 05:22:54,014 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-01-09 05:22:54,015 INFO L87 Difference]: Start difference. First operand 3303 states and 5834 transitions. Second operand has 6 states, 6 states have (on average 29.5) internal successors, (177), 5 states have internal predecessors, (177), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-01-09 05:22:54,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 05:22:54,861 INFO L93 Difference]: Finished difference Result 5425 states and 9268 transitions. [2025-01-09 05:22:54,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-01-09 05:22:54,862 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 29.5) internal successors, (177), 5 states have internal predecessors, (177), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 188 [2025-01-09 05:22:54,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 05:22:54,881 INFO L225 Difference]: With dead ends: 5425 [2025-01-09 05:22:54,881 INFO L226 Difference]: Without dead ends: 4264 [2025-01-09 05:22:54,887 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 05:22:54,888 INFO L435 NwaCegarLoop]: 4792 mSDtfsCounter, 5203 mSDsluCounter, 14436 mSDsCounter, 0 mSdLazyCounter, 1163 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5224 SdHoareTripleChecker+Valid, 19228 SdHoareTripleChecker+Invalid, 1198 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 1163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2025-01-09 05:22:54,889 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5224 Valid, 19228 Invalid, 1198 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 1163 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2025-01-09 05:22:54,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4264 states. [2025-01-09 05:22:55,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4264 to 4101. [2025-01-09 05:22:55,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4101 states, 3946 states have (on average 1.7397364419665484) internal successors, (6865), 3955 states have internal predecessors, (6865), 117 states have call successors, (117), 31 states have call predecessors, (117), 36 states have return successors, (131), 118 states have call predecessors, (131), 115 states have call successors, (131) [2025-01-09 05:22:55,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4101 states to 4101 states and 7113 transitions. [2025-01-09 05:22:55,039 INFO L78 Accepts]: Start accepts. Automaton has 4101 states and 7113 transitions. Word has length 188 [2025-01-09 05:22:55,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 05:22:55,040 INFO L471 AbstractCegarLoop]: Abstraction has 4101 states and 7113 transitions. [2025-01-09 05:22:55,041 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 29.5) internal successors, (177), 5 states have internal predecessors, (177), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-01-09 05:22:55,041 INFO L276 IsEmpty]: Start isEmpty. Operand 4101 states and 7113 transitions. [2025-01-09 05:22:55,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2025-01-09 05:22:55,045 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 05:22:55,045 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 05:22:55,045 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-01-09 05:22:55,046 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 05:22:55,048 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 05:22:55,048 INFO L85 PathProgramCache]: Analyzing trace with hash 1598748949, now seen corresponding path program 1 times [2025-01-09 05:22:55,048 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 05:22:55,048 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1026245111] [2025-01-09 05:22:55,048 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 05:22:55,048 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 05:22:55,061 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 188 statements into 1 equivalence classes. [2025-01-09 05:22:55,070 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 188 of 188 statements. [2025-01-09 05:22:55,072 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 05:22:55,072 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 05:22:55,312 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 05:22:55,313 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 05:22:55,313 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1026245111] [2025-01-09 05:22:55,313 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1026245111] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 05:22:55,313 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 05:22:55,313 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-01-09 05:22:55,313 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [218506395] [2025-01-09 05:22:55,314 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 05:22:55,314 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-01-09 05:22:55,314 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 05:22:55,315 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-01-09 05:22:55,315 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-01-09 05:22:55,315 INFO L87 Difference]: Start difference. First operand 4101 states and 7113 transitions. Second operand has 6 states, 6 states have (on average 29.5) internal successors, (177), 5 states have internal predecessors, (177), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-01-09 05:22:56,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 05:22:56,130 INFO L93 Difference]: Finished difference Result 8011 states and 13493 transitions. [2025-01-09 05:22:56,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-01-09 05:22:56,130 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 29.5) internal successors, (177), 5 states have internal predecessors, (177), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 188 [2025-01-09 05:22:56,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 05:22:56,155 INFO L225 Difference]: With dead ends: 8011 [2025-01-09 05:22:56,155 INFO L226 Difference]: Without dead ends: 6052 [2025-01-09 05:22:56,161 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 05:22:56,162 INFO L435 NwaCegarLoop]: 4789 mSDtfsCounter, 5198 mSDsluCounter, 14427 mSDsCounter, 0 mSdLazyCounter, 1163 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5219 SdHoareTripleChecker+Valid, 19216 SdHoareTripleChecker+Invalid, 1198 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 1163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2025-01-09 05:22:56,162 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5219 Valid, 19216 Invalid, 1198 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 1163 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2025-01-09 05:22:56,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6052 states. [2025-01-09 05:22:56,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6052 to 5844. [2025-01-09 05:22:56,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5844 states, 5563 states have (on average 1.7071723889987418) internal successors, (9497), 5586 states have internal predecessors, (9497), 205 states have call successors, (205), 55 states have call predecessors, (205), 74 states have return successors, (267), 210 states have call predecessors, (267), 203 states have call successors, (267) [2025-01-09 05:22:56,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5844 states to 5844 states and 9969 transitions. [2025-01-09 05:22:56,273 INFO L78 Accepts]: Start accepts. Automaton has 5844 states and 9969 transitions. Word has length 188 [2025-01-09 05:22:56,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 05:22:56,273 INFO L471 AbstractCegarLoop]: Abstraction has 5844 states and 9969 transitions. [2025-01-09 05:22:56,274 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 29.5) internal successors, (177), 5 states have internal predecessors, (177), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-01-09 05:22:56,274 INFO L276 IsEmpty]: Start isEmpty. Operand 5844 states and 9969 transitions. [2025-01-09 05:22:56,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2025-01-09 05:22:56,276 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 05:22:56,277 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 05:22:56,277 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-01-09 05:22:56,277 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 05:22:56,277 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 05:22:56,277 INFO L85 PathProgramCache]: Analyzing trace with hash 812751059, now seen corresponding path program 1 times [2025-01-09 05:22:56,277 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 05:22:56,277 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [236290162] [2025-01-09 05:22:56,277 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 05:22:56,278 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 05:22:56,285 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 188 statements into 1 equivalence classes. [2025-01-09 05:22:56,289 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 188 of 188 statements. [2025-01-09 05:22:56,289 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 05:22:56,289 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 05:22:56,405 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 05:22:56,405 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 05:22:56,405 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [236290162] [2025-01-09 05:22:56,405 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [236290162] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 05:22:56,405 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 05:22:56,405 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-01-09 05:22:56,405 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1574240686] [2025-01-09 05:22:56,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 05:22:56,406 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-01-09 05:22:56,406 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 05:22:56,406 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-01-09 05:22:56,406 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-01-09 05:22:56,406 INFO L87 Difference]: Start difference. First operand 5844 states and 9969 transitions. Second operand has 6 states, 6 states have (on average 29.5) internal successors, (177), 5 states have internal predecessors, (177), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-01-09 05:22:57,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 05:22:57,210 INFO L93 Difference]: Finished difference Result 13752 states and 23123 transitions. [2025-01-09 05:22:57,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-01-09 05:22:57,210 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 29.5) internal successors, (177), 5 states have internal predecessors, (177), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 188 [2025-01-09 05:22:57,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 05:22:57,257 INFO L225 Difference]: With dead ends: 13752 [2025-01-09 05:22:57,258 INFO L226 Difference]: Without dead ends: 10050 [2025-01-09 05:22:57,274 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 05:22:57,275 INFO L435 NwaCegarLoop]: 4786 mSDtfsCounter, 5193 mSDsluCounter, 14418 mSDsCounter, 0 mSdLazyCounter, 1163 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5214 SdHoareTripleChecker+Valid, 19204 SdHoareTripleChecker+Invalid, 1198 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 1163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2025-01-09 05:22:57,275 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5214 Valid, 19204 Invalid, 1198 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 1163 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2025-01-09 05:22:57,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10050 states. [2025-01-09 05:22:57,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10050 to 9753. [2025-01-09 05:22:57,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9753 states, 9202 states have (on average 1.6897413605737883) internal successors, (15549), 9271 states have internal predecessors, (15549), 381 states have call successors, (381), 103 states have call predecessors, (381), 168 states have return successors, (635), 394 states have call predecessors, (635), 379 states have call successors, (635) [2025-01-09 05:22:57,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9753 states to 9753 states and 16565 transitions. [2025-01-09 05:22:57,535 INFO L78 Accepts]: Start accepts. Automaton has 9753 states and 16565 transitions. Word has length 188 [2025-01-09 05:22:57,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 05:22:57,536 INFO L471 AbstractCegarLoop]: Abstraction has 9753 states and 16565 transitions. [2025-01-09 05:22:57,536 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 29.5) internal successors, (177), 5 states have internal predecessors, (177), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-01-09 05:22:57,536 INFO L276 IsEmpty]: Start isEmpty. Operand 9753 states and 16565 transitions. [2025-01-09 05:22:57,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2025-01-09 05:22:57,540 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 05:22:57,540 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 05:22:57,540 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-01-09 05:22:57,540 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 05:22:57,540 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 05:22:57,541 INFO L85 PathProgramCache]: Analyzing trace with hash 1480132949, now seen corresponding path program 1 times [2025-01-09 05:22:57,541 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 05:22:57,541 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1789223891] [2025-01-09 05:22:57,541 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 05:22:57,541 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 05:22:57,548 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 188 statements into 1 equivalence classes. [2025-01-09 05:22:57,552 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 188 of 188 statements. [2025-01-09 05:22:57,553 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 05:22:57,553 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 05:22:57,658 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 05:22:57,659 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 05:22:57,659 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1789223891] [2025-01-09 05:22:57,659 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1789223891] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 05:22:57,659 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 05:22:57,659 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-01-09 05:22:57,659 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [654040722] [2025-01-09 05:22:57,659 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 05:22:57,659 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-01-09 05:22:57,660 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 05:22:57,660 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-01-09 05:22:57,660 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-01-09 05:22:57,660 INFO L87 Difference]: Start difference. First operand 9753 states and 16565 transitions. Second operand has 6 states, 6 states have (on average 29.5) internal successors, (177), 5 states have internal predecessors, (177), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-01-09 05:22:58,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 05:22:58,520 INFO L93 Difference]: Finished difference Result 26867 states and 45901 transitions. [2025-01-09 05:22:58,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-01-09 05:22:58,521 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 29.5) internal successors, (177), 5 states have internal predecessors, (177), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 188 [2025-01-09 05:22:58,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 05:22:58,579 INFO L225 Difference]: With dead ends: 26867 [2025-01-09 05:22:58,579 INFO L226 Difference]: Without dead ends: 19256 [2025-01-09 05:22:58,605 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 05:22:58,606 INFO L435 NwaCegarLoop]: 4493 mSDtfsCounter, 5229 mSDsluCounter, 13718 mSDsCounter, 0 mSdLazyCounter, 952 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5250 SdHoareTripleChecker+Valid, 18211 SdHoareTripleChecker+Invalid, 1012 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 952 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2025-01-09 05:22:58,606 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5250 Valid, 18211 Invalid, 1012 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 952 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2025-01-09 05:22:58,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19256 states. [2025-01-09 05:22:58,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19256 to 18786. [2025-01-09 05:22:58,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18786 states, 17641 states have (on average 1.6956521739130435) internal successors, (29913), 17856 states have internal predecessors, (29913), 733 states have call successors, (733), 199 states have call predecessors, (733), 410 states have return successors, (1755), 762 states have call predecessors, (1755), 731 states have call successors, (1755) [2025-01-09 05:22:59,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18786 states to 18786 states and 32401 transitions. [2025-01-09 05:22:59,016 INFO L78 Accepts]: Start accepts. Automaton has 18786 states and 32401 transitions. Word has length 188 [2025-01-09 05:22:59,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 05:22:59,016 INFO L471 AbstractCegarLoop]: Abstraction has 18786 states and 32401 transitions. [2025-01-09 05:22:59,017 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 29.5) internal successors, (177), 5 states have internal predecessors, (177), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-01-09 05:22:59,017 INFO L276 IsEmpty]: Start isEmpty. Operand 18786 states and 32401 transitions. [2025-01-09 05:22:59,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2025-01-09 05:22:59,024 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 05:22:59,024 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 05:22:59,024 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-01-09 05:22:59,024 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 05:22:59,025 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 05:22:59,025 INFO L85 PathProgramCache]: Analyzing trace with hash -715095917, now seen corresponding path program 1 times [2025-01-09 05:22:59,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 05:22:59,025 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1583444484] [2025-01-09 05:22:59,025 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 05:22:59,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 05:22:59,033 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 188 statements into 1 equivalence classes. [2025-01-09 05:22:59,037 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 188 of 188 statements. [2025-01-09 05:22:59,037 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 05:22:59,037 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 05:22:59,310 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 05:22:59,311 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 05:22:59,311 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1583444484] [2025-01-09 05:22:59,311 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1583444484] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 05:22:59,311 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 05:22:59,311 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-01-09 05:22:59,311 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2041249094] [2025-01-09 05:22:59,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 05:22:59,312 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-09 05:22:59,312 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 05:22:59,312 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-09 05:22:59,312 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-01-09 05:22:59,313 INFO L87 Difference]: Start difference. First operand 18786 states and 32401 transitions. Second operand has 5 states, 5 states have (on average 35.4) internal successors, (177), 5 states have internal predecessors, (177), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-01-09 05:23:00,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 05:23:00,330 INFO L93 Difference]: Finished difference Result 40820 states and 71946 transitions. [2025-01-09 05:23:00,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-09 05:23:00,331 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 35.4) internal successors, (177), 5 states have internal predecessors, (177), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 188 [2025-01-09 05:23:00,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 05:23:00,390 INFO L225 Difference]: With dead ends: 40820 [2025-01-09 05:23:00,390 INFO L226 Difference]: Without dead ends: 24176 [2025-01-09 05:23:00,425 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 05:23:00,428 INFO L435 NwaCegarLoop]: 4432 mSDtfsCounter, 4829 mSDsluCounter, 8695 mSDsCounter, 0 mSdLazyCounter, 476 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4850 SdHoareTripleChecker+Valid, 13127 SdHoareTripleChecker+Invalid, 512 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 476 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2025-01-09 05:23:00,428 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4850 Valid, 13127 Invalid, 512 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 476 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2025-01-09 05:23:00,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24176 states. [2025-01-09 05:23:00,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24176 to 18786. [2025-01-09 05:23:00,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18786 states, 17641 states have (on average 1.693781531659203) internal successors, (29880), 17856 states have internal predecessors, (29880), 733 states have call successors, (733), 199 states have call predecessors, (733), 410 states have return successors, (1755), 762 states have call predecessors, (1755), 731 states have call successors, (1755) [2025-01-09 05:23:00,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18786 states to 18786 states and 32368 transitions. [2025-01-09 05:23:00,996 INFO L78 Accepts]: Start accepts. Automaton has 18786 states and 32368 transitions. Word has length 188 [2025-01-09 05:23:00,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 05:23:00,997 INFO L471 AbstractCegarLoop]: Abstraction has 18786 states and 32368 transitions. [2025-01-09 05:23:00,997 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 35.4) internal successors, (177), 5 states have internal predecessors, (177), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-01-09 05:23:00,997 INFO L276 IsEmpty]: Start isEmpty. Operand 18786 states and 32368 transitions. [2025-01-09 05:23:01,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2025-01-09 05:23:01,004 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 05:23:01,005 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 05:23:01,005 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-01-09 05:23:01,005 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 05:23:01,006 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 05:23:01,006 INFO L85 PathProgramCache]: Analyzing trace with hash -370267755, now seen corresponding path program 1 times [2025-01-09 05:23:01,006 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 05:23:01,006 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1445485237] [2025-01-09 05:23:01,006 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 05:23:01,007 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 05:23:01,018 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 188 statements into 1 equivalence classes. [2025-01-09 05:23:01,025 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 188 of 188 statements. [2025-01-09 05:23:01,025 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 05:23:01,025 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 05:23:01,146 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 05:23:01,146 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 05:23:01,146 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1445485237] [2025-01-09 05:23:01,146 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1445485237] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 05:23:01,147 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 05:23:01,147 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-01-09 05:23:01,147 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2009060262] [2025-01-09 05:23:01,147 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 05:23:01,147 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-01-09 05:23:01,147 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 05:23:01,148 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-01-09 05:23:01,148 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-01-09 05:23:01,148 INFO L87 Difference]: Start difference. First operand 18786 states and 32368 transitions. Second operand has 6 states, 6 states have (on average 29.5) internal successors, (177), 5 states have internal predecessors, (177), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-01-09 05:23:03,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 05:23:03,220 INFO L93 Difference]: Finished difference Result 57504 states and 101420 transitions. [2025-01-09 05:23:03,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-01-09 05:23:03,221 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 29.5) internal successors, (177), 5 states have internal predecessors, (177), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 188 [2025-01-09 05:23:03,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 05:23:03,393 INFO L225 Difference]: With dead ends: 57504 [2025-01-09 05:23:03,394 INFO L226 Difference]: Without dead ends: 40860 [2025-01-09 05:23:03,440 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 05:23:03,440 INFO L435 NwaCegarLoop]: 4775 mSDtfsCounter, 5175 mSDsluCounter, 14386 mSDsCounter, 0 mSdLazyCounter, 1163 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5196 SdHoareTripleChecker+Valid, 19161 SdHoareTripleChecker+Invalid, 1198 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 1163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2025-01-09 05:23:03,441 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5196 Valid, 19161 Invalid, 1198 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 1163 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2025-01-09 05:23:03,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40860 states. [2025-01-09 05:23:04,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40860 to 40092. [2025-01-09 05:23:04,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40092 states, 37597 states have (on average 1.7169986967045243) internal successors, (64554), 38266 states have internal predecessors, (64554), 1437 states have call successors, (1437), 391 states have call predecessors, (1437), 1056 states have return successors, (5531), 1498 states have call predecessors, (5531), 1435 states have call successors, (5531) [2025-01-09 05:23:04,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40092 states to 40092 states and 71522 transitions. [2025-01-09 05:23:04,750 INFO L78 Accepts]: Start accepts. Automaton has 40092 states and 71522 transitions. Word has length 188 [2025-01-09 05:23:04,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 05:23:04,755 INFO L471 AbstractCegarLoop]: Abstraction has 40092 states and 71522 transitions. [2025-01-09 05:23:04,755 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 29.5) internal successors, (177), 5 states have internal predecessors, (177), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-01-09 05:23:04,755 INFO L276 IsEmpty]: Start isEmpty. Operand 40092 states and 71522 transitions. [2025-01-09 05:23:04,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2025-01-09 05:23:04,786 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 05:23:04,787 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 05:23:04,787 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-01-09 05:23:04,787 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 05:23:04,788 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 05:23:04,788 INFO L85 PathProgramCache]: Analyzing trace with hash 610687059, now seen corresponding path program 1 times [2025-01-09 05:23:04,788 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 05:23:04,788 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [693321426] [2025-01-09 05:23:04,788 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 05:23:04,788 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 05:23:04,812 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 188 statements into 1 equivalence classes. [2025-01-09 05:23:04,827 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 188 of 188 statements. [2025-01-09 05:23:04,827 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 05:23:04,827 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 05:23:05,000 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 05:23:05,000 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 05:23:05,000 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [693321426] [2025-01-09 05:23:05,000 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [693321426] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 05:23:05,000 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 05:23:05,000 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-01-09 05:23:05,000 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [732635837] [2025-01-09 05:23:05,001 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 05:23:05,002 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-01-09 05:23:05,002 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 05:23:05,002 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-01-09 05:23:05,002 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-01-09 05:23:05,003 INFO L87 Difference]: Start difference. First operand 40092 states and 71522 transitions. Second operand has 6 states, 6 states have (on average 29.5) internal successors, (177), 5 states have internal predecessors, (177), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-01-09 05:23:08,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 05:23:08,169 INFO L93 Difference]: Finished difference Result 131504 states and 243700 transitions. [2025-01-09 05:23:08,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-01-09 05:23:08,170 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 29.5) internal successors, (177), 5 states have internal predecessors, (177), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 188 [2025-01-09 05:23:08,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 05:23:08,526 INFO L225 Difference]: With dead ends: 131504 [2025-01-09 05:23:08,526 INFO L226 Difference]: Without dead ends: 93554 [2025-01-09 05:23:08,653 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2025-01-09 05:23:08,654 INFO L435 NwaCegarLoop]: 4772 mSDtfsCounter, 5170 mSDsluCounter, 14377 mSDsCounter, 0 mSdLazyCounter, 1163 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5191 SdHoareTripleChecker+Valid, 19149 SdHoareTripleChecker+Invalid, 1198 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 1163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2025-01-09 05:23:08,655 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5191 Valid, 19149 Invalid, 1198 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [35 Valid, 1163 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2025-01-09 05:23:08,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93554 states. [2025-01-09 05:23:11,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93554 to 92181. [2025-01-09 05:23:11,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92181 states, 86500 states have (on average 1.7498959537572254) internal successors, (151366), 88563 states have internal predecessors, (151366), 2845 states have call successors, (2845), 775 states have call predecessors, (2845), 2834 states have return successors, (19227), 2970 states have call predecessors, (19227), 2843 states have call successors, (19227) [2025-01-09 05:23:12,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92181 states to 92181 states and 173438 transitions. [2025-01-09 05:23:12,035 INFO L78 Accepts]: Start accepts. Automaton has 92181 states and 173438 transitions. Word has length 188 [2025-01-09 05:23:12,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 05:23:12,040 INFO L471 AbstractCegarLoop]: Abstraction has 92181 states and 173438 transitions. [2025-01-09 05:23:12,040 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 29.5) internal successors, (177), 5 states have internal predecessors, (177), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-01-09 05:23:12,040 INFO L276 IsEmpty]: Start isEmpty. Operand 92181 states and 173438 transitions. [2025-01-09 05:23:12,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2025-01-09 05:23:12,089 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 05:23:12,089 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 05:23:12,093 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2025-01-09 05:23:12,094 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 05:23:12,094 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 05:23:12,094 INFO L85 PathProgramCache]: Analyzing trace with hash -1158784555, now seen corresponding path program 1 times [2025-01-09 05:23:12,094 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 05:23:12,094 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [21059231] [2025-01-09 05:23:12,094 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 05:23:12,095 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 05:23:12,122 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 188 statements into 1 equivalence classes. [2025-01-09 05:23:12,130 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 188 of 188 statements. [2025-01-09 05:23:12,131 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 05:23:12,131 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 05:23:12,283 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 05:23:12,283 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 05:23:12,284 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [21059231] [2025-01-09 05:23:12,284 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [21059231] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 05:23:12,284 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 05:23:12,284 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-01-09 05:23:12,284 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [77196344] [2025-01-09 05:23:12,284 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 05:23:12,288 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-09 05:23:12,288 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 05:23:12,288 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-09 05:23:12,288 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-01-09 05:23:12,288 INFO L87 Difference]: Start difference. First operand 92181 states and 173438 transitions. Second operand has 5 states, 5 states have (on average 35.4) internal successors, (177), 5 states have internal predecessors, (177), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-01-09 05:23:16,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 05:23:16,126 INFO L93 Difference]: Finished difference Result 221622 states and 431764 transitions. [2025-01-09 05:23:16,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-09 05:23:16,127 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 35.4) internal successors, (177), 5 states have internal predecessors, (177), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 188 [2025-01-09 05:23:16,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 05:23:16,761 INFO L225 Difference]: With dead ends: 221622 [2025-01-09 05:23:16,762 INFO L226 Difference]: Without dead ends: 131583 [2025-01-09 05:23:17,033 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 05:23:17,033 INFO L435 NwaCegarLoop]: 4423 mSDtfsCounter, 4823 mSDsluCounter, 8678 mSDsCounter, 0 mSdLazyCounter, 476 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4844 SdHoareTripleChecker+Valid, 13101 SdHoareTripleChecker+Invalid, 512 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 476 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-01-09 05:23:17,034 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4844 Valid, 13101 Invalid, 512 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 476 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-01-09 05:23:17,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131583 states. [2025-01-09 05:23:21,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131583 to 92181. [2025-01-09 05:23:21,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92181 states, 86500 states have (on average 1.7484046242774567) internal successors, (151237), 88563 states have internal predecessors, (151237), 2845 states have call successors, (2845), 775 states have call predecessors, (2845), 2834 states have return successors, (19227), 2970 states have call predecessors, (19227), 2843 states have call successors, (19227) [2025-01-09 05:23:22,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92181 states to 92181 states and 173309 transitions. [2025-01-09 05:23:22,207 INFO L78 Accepts]: Start accepts. Automaton has 92181 states and 173309 transitions. Word has length 188 [2025-01-09 05:23:22,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 05:23:22,207 INFO L471 AbstractCegarLoop]: Abstraction has 92181 states and 173309 transitions. [2025-01-09 05:23:22,208 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 35.4) internal successors, (177), 5 states have internal predecessors, (177), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-01-09 05:23:22,208 INFO L276 IsEmpty]: Start isEmpty. Operand 92181 states and 173309 transitions. [2025-01-09 05:23:22,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2025-01-09 05:23:22,230 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 05:23:22,230 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 05:23:22,230 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2025-01-09 05:23:22,231 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 05:23:22,231 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 05:23:22,231 INFO L85 PathProgramCache]: Analyzing trace with hash 1730991063, now seen corresponding path program 1 times [2025-01-09 05:23:22,231 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 05:23:22,231 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [832565126] [2025-01-09 05:23:22,231 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 05:23:22,231 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 05:23:22,244 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 188 statements into 1 equivalence classes. [2025-01-09 05:23:22,249 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 188 of 188 statements. [2025-01-09 05:23:22,249 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 05:23:22,249 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 05:23:22,393 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 05:23:22,394 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 05:23:22,394 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [832565126] [2025-01-09 05:23:22,394 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [832565126] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 05:23:22,394 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 05:23:22,394 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-01-09 05:23:22,394 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [229650655] [2025-01-09 05:23:22,394 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 05:23:22,395 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-01-09 05:23:22,395 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 05:23:22,395 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-01-09 05:23:22,395 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-01-09 05:23:22,395 INFO L87 Difference]: Start difference. First operand 92181 states and 173309 transitions. Second operand has 6 states, 6 states have (on average 29.5) internal successors, (177), 5 states have internal predecessors, (177), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-01-09 05:23:28,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 05:23:28,965 INFO L93 Difference]: Finished difference Result 311257 states and 616171 transitions. [2025-01-09 05:23:28,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-01-09 05:23:28,966 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 29.5) internal successors, (177), 5 states have internal predecessors, (177), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 188 [2025-01-09 05:23:28,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 05:23:30,413 INFO L225 Difference]: With dead ends: 311257 [2025-01-09 05:23:30,413 INFO L226 Difference]: Without dead ends: 221218 [2025-01-09 05:23:30,759 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2025-01-09 05:23:30,760 INFO L435 NwaCegarLoop]: 4760 mSDtfsCounter, 5154 mSDsluCounter, 14344 mSDsCounter, 0 mSdLazyCounter, 1163 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5175 SdHoareTripleChecker+Valid, 19104 SdHoareTripleChecker+Invalid, 1198 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 1163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2025-01-09 05:23:30,760 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5175 Valid, 19104 Invalid, 1198 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 1163 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2025-01-09 05:23:30,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221218 states.