./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label49+token_ring.08.cil-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 61a67961 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label49+token_ring.08.cil-2.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash aaf13b6417c3a40bd252c0d41a10a8dacb34259e9c2292b8e82d477fe2508ef5 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.fs.cvc5-61a6796-m [2024-10-14 04:36:00,361 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-14 04:36:00,422 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-14 04:36:00,427 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-14 04:36:00,429 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-14 04:36:00,447 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-14 04:36:00,447 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-14 04:36:00,448 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-14 04:36:00,448 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-14 04:36:00,449 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-14 04:36:00,449 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-14 04:36:00,449 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-14 04:36:00,450 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-14 04:36:00,450 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-14 04:36:00,452 INFO L153 SettingsManager]: * Use SBE=true [2024-10-14 04:36:00,452 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-14 04:36:00,452 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-14 04:36:00,452 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-14 04:36:00,452 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-14 04:36:00,453 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-14 04:36:00,453 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-14 04:36:00,455 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-14 04:36:00,456 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-14 04:36:00,456 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-14 04:36:00,456 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-14 04:36:00,456 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-14 04:36:00,456 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-14 04:36:00,457 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-14 04:36:00,457 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-14 04:36:00,457 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-14 04:36:00,457 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-14 04:36:00,457 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-14 04:36:00,457 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 04:36:00,457 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-14 04:36:00,458 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-14 04:36:00,458 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-14 04:36:00,458 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-14 04:36:00,458 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-14 04:36:00,458 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-14 04:36:00,458 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-14 04:36:00,458 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-14 04:36:00,460 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-14 04:36:00,460 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> aaf13b6417c3a40bd252c0d41a10a8dacb34259e9c2292b8e82d477fe2508ef5 [2024-10-14 04:36:00,696 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-14 04:36:00,718 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-14 04:36:00,721 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-14 04:36:00,722 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-14 04:36:00,722 INFO L274 PluginConnector]: CDTParser initialized [2024-10-14 04:36:00,723 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label49+token_ring.08.cil-2.c [2024-10-14 04:36:01,898 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-14 04:36:02,397 INFO L384 CDTParser]: Found 1 translation units. [2024-10-14 04:36:02,398 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label49+token_ring.08.cil-2.c [2024-10-14 04:36:02,433 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e981ca863/f03713e53ff544dc81e15f9c24f97102/FLAG4a86a5736 [2024-10-14 04:36:02,474 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e981ca863/f03713e53ff544dc81e15f9c24f97102 [2024-10-14 04:36:02,476 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-14 04:36:02,477 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-14 04:36:02,479 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-14 04:36:02,479 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-14 04:36:02,483 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-14 04:36:02,484 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 04:36:02" (1/1) ... [2024-10-14 04:36:02,485 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3eda8f60 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:36:02, skipping insertion in model container [2024-10-14 04:36:02,485 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 04:36:02" (1/1) ... [2024-10-14 04:36:02,613 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-14 04:36:03,839 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label49+token_ring.08.cil-2.c[380593,380606] [2024-10-14 04:36:03,864 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label49+token_ring.08.cil-2.c[383339,383352] [2024-10-14 04:36:04,064 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 04:36:04,075 INFO L200 MainTranslator]: Completed pre-run [2024-10-14 04:36:04,651 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label49+token_ring.08.cil-2.c[380593,380606] [2024-10-14 04:36:04,656 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label49+token_ring.08.cil-2.c[383339,383352] [2024-10-14 04:36:04,673 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 04:36:04,715 INFO L204 MainTranslator]: Completed translation [2024-10-14 04:36:04,716 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:36:04 WrapperNode [2024-10-14 04:36:04,716 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-14 04:36:04,717 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-14 04:36:04,718 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-14 04:36:04,718 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-14 04:36:04,723 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:36:04" (1/1) ... [2024-10-14 04:36:04,789 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:36:04" (1/1) ... [2024-10-14 04:36:05,091 INFO L138 Inliner]: procedures = 60, calls = 66, calls flagged for inlining = 37, calls inlined = 37, statements flattened = 12999 [2024-10-14 04:36:05,091 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-14 04:36:05,092 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-14 04:36:05,092 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-14 04:36:05,092 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-14 04:36:05,101 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:36:04" (1/1) ... [2024-10-14 04:36:05,101 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:36:04" (1/1) ... [2024-10-14 04:36:05,137 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:36:04" (1/1) ... [2024-10-14 04:36:05,204 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]. [2024-10-14 04:36:05,204 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:36:04" (1/1) ... [2024-10-14 04:36:05,205 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:36:04" (1/1) ... [2024-10-14 04:36:05,435 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:36:04" (1/1) ... [2024-10-14 04:36:05,523 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:36:04" (1/1) ... [2024-10-14 04:36:05,567 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:36:04" (1/1) ... [2024-10-14 04:36:05,592 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:36:04" (1/1) ... [2024-10-14 04:36:05,690 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-14 04:36:05,695 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-14 04:36:05,695 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-14 04:36:05,695 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-14 04:36:05,696 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:36:04" (1/1) ... [2024-10-14 04:36:05,701 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 04:36:05,709 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 04:36:05,749 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-14 04:36:05,759 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-14 04:36:05,795 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-14 04:36:05,795 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2024-10-14 04:36:05,795 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2024-10-14 04:36:05,795 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2024-10-14 04:36:05,797 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2024-10-14 04:36:05,797 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2024-10-14 04:36:05,797 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2024-10-14 04:36:05,797 INFO L130 BoogieDeclarations]: Found specification of procedure error [2024-10-14 04:36:05,797 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2024-10-14 04:36:05,797 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2024-10-14 04:36:05,797 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2024-10-14 04:36:05,798 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2024-10-14 04:36:05,798 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2024-10-14 04:36:05,798 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2024-10-14 04:36:05,798 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2024-10-14 04:36:05,798 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-14 04:36:05,798 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-14 04:36:05,798 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-14 04:36:05,909 INFO L238 CfgBuilder]: Building ICFG [2024-10-14 04:36:05,911 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-14 04:36:11,767 INFO L? ?]: Removed 1735 outVars from TransFormulas that were not future-live. [2024-10-14 04:36:11,767 INFO L287 CfgBuilder]: Performing block encoding [2024-10-14 04:36:11,858 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-14 04:36:11,858 INFO L314 CfgBuilder]: Removed 12 assume(true) statements. [2024-10-14 04:36:11,858 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 04:36:11 BoogieIcfgContainer [2024-10-14 04:36:11,858 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-14 04:36:11,860 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-14 04:36:11,860 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-14 04:36:11,862 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-14 04:36:11,863 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 04:36:02" (1/3) ... [2024-10-14 04:36:11,863 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a41a6f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 04:36:11, skipping insertion in model container [2024-10-14 04:36:11,863 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:36:04" (2/3) ... [2024-10-14 04:36:11,863 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a41a6f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 04:36:11, skipping insertion in model container [2024-10-14 04:36:11,864 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 04:36:11" (3/3) ... [2024-10-14 04:36:11,868 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem05_label49+token_ring.08.cil-2.c [2024-10-14 04:36:11,881 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-14 04:36:11,881 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-10-14 04:36:11,977 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-14 04:36:11,983 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;@6a3a6dc7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-14 04:36:11,983 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-10-14 04:36:11,995 INFO L276 IsEmpty]: Start isEmpty. Operand has 2387 states, 2353 states have (on average 1.87972800679983) internal successors, (4423), 2358 states have internal predecessors, (4423), 24 states have call successors, (24), 7 states have call predecessors, (24), 7 states have return successors, (24), 23 states have call predecessors, (24), 24 states have call successors, (24) [2024-10-14 04:36:12,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-10-14 04:36:12,006 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:36:12,007 INFO L215 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] [2024-10-14 04:36:12,007 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:36:12,011 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:36:12,011 INFO L85 PathProgramCache]: Analyzing trace with hash 947459073, now seen corresponding path program 1 times [2024-10-14 04:36:12,017 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:36:12,017 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2090590388] [2024-10-14 04:36:12,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:36:12,018 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:36:12,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:36:12,335 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 04:36:12,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:36:12,400 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-10-14 04:36:12,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:36:12,446 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-14 04:36:12,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:36:12,484 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-10-14 04:36:12,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:36:12,498 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-10-14 04:36:12,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:36:12,506 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:36:12,507 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:36:12,507 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2090590388] [2024-10-14 04:36:12,508 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2090590388] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:36:12,508 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:36:12,508 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 04:36:12,509 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2014501441] [2024-10-14 04:36:12,510 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:36:12,514 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 04:36:12,514 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:36:12,533 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 04:36:12,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-14 04:36:12,539 INFO L87 Difference]: Start difference. First operand has 2387 states, 2353 states have (on average 1.87972800679983) internal successors, (4423), 2358 states have internal predecessors, (4423), 24 states have call successors, (24), 7 states have call predecessors, (24), 7 states have return successors, (24), 23 states have call predecessors, (24), 24 states have call successors, (24) Second operand has 5 states, 5 states have (on average 22.2) internal successors, (111), 3 states have internal predecessors, (111), 2 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-14 04:36:13,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:36:13,655 INFO L93 Difference]: Finished difference Result 4859 states and 9094 transitions. [2024-10-14 04:36:13,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 04:36:13,657 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 3 states have internal predecessors, (111), 2 states have call successors, (6), 4 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 122 [2024-10-14 04:36:13,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:36:13,675 INFO L225 Difference]: With dead ends: 4859 [2024-10-14 04:36:13,675 INFO L226 Difference]: Without dead ends: 2472 [2024-10-14 04:36:13,683 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-10-14 04:36:13,685 INFO L432 NwaCegarLoop]: 4192 mSDtfsCounter, 709 mSDsluCounter, 12134 mSDsCounter, 0 mSdLazyCounter, 759 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 729 SdHoareTripleChecker+Valid, 16326 SdHoareTripleChecker+Invalid, 811 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 759 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-10-14 04:36:13,686 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [729 Valid, 16326 Invalid, 811 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [52 Valid, 759 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-10-14 04:36:13,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2472 states. [2024-10-14 04:36:13,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2472 to 2382. [2024-10-14 04:36:13,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2382 states, 2350 states have (on average 1.8429787234042554) internal successors, (4331), 2353 states have internal predecessors, (4331), 24 states have call successors, (24), 7 states have call predecessors, (24), 6 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2024-10-14 04:36:13,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2382 states to 2382 states and 4377 transitions. [2024-10-14 04:36:13,800 INFO L78 Accepts]: Start accepts. Automaton has 2382 states and 4377 transitions. Word has length 122 [2024-10-14 04:36:13,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:36:13,800 INFO L471 AbstractCegarLoop]: Abstraction has 2382 states and 4377 transitions. [2024-10-14 04:36:13,800 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 3 states have internal predecessors, (111), 2 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-14 04:36:13,801 INFO L276 IsEmpty]: Start isEmpty. Operand 2382 states and 4377 transitions. [2024-10-14 04:36:13,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-10-14 04:36:13,803 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:36:13,803 INFO L215 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] [2024-10-14 04:36:13,804 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-14 04:36:13,804 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:36:13,804 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:36:13,804 INFO L85 PathProgramCache]: Analyzing trace with hash -981473153, now seen corresponding path program 1 times [2024-10-14 04:36:13,804 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:36:13,805 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1085298444] [2024-10-14 04:36:13,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:36:13,805 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:36:13,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:36:13,903 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 04:36:13,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:36:13,943 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-10-14 04:36:13,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:36:14,009 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-14 04:36:14,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:36:14,025 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-10-14 04:36:14,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:36:14,032 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-10-14 04:36:14,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:36:14,035 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:36:14,035 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:36:14,035 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1085298444] [2024-10-14 04:36:14,035 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1085298444] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:36:14,035 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:36:14,036 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-14 04:36:14,036 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [548845655] [2024-10-14 04:36:14,036 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:36:14,037 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 04:36:14,038 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:36:14,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 04:36:14,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-14 04:36:14,039 INFO L87 Difference]: Start difference. First operand 2382 states and 4377 transitions. Second operand has 6 states, 6 states have (on average 18.5) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-14 04:36:15,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:36:15,909 INFO L93 Difference]: Finished difference Result 3067 states and 5511 transitions. [2024-10-14 04:36:15,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-14 04:36:15,910 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 18.5) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (6), 4 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 122 [2024-10-14 04:36:15,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:36:15,927 INFO L225 Difference]: With dead ends: 3067 [2024-10-14 04:36:15,927 INFO L226 Difference]: Without dead ends: 2820 [2024-10-14 04:36:15,931 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-10-14 04:36:15,934 INFO L432 NwaCegarLoop]: 4165 mSDtfsCounter, 5014 mSDsluCounter, 12483 mSDsCounter, 0 mSdLazyCounter, 1627 mSolverCounterSat, 100 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5029 SdHoareTripleChecker+Valid, 16648 SdHoareTripleChecker+Invalid, 1727 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 100 IncrementalHoareTripleChecker+Valid, 1627 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-10-14 04:36:15,934 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5029 Valid, 16648 Invalid, 1727 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [100 Valid, 1627 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-10-14 04:36:15,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2820 states. [2024-10-14 04:36:16,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2820 to 2639. [2024-10-14 04:36:16,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2639 states, 2583 states have (on average 1.8246225319396052) internal successors, (4713), 2587 states have internal predecessors, (4713), 41 states have call successors, (41), 13 states have call predecessors, (41), 13 states have return successors, (42), 39 states have call predecessors, (42), 39 states have call successors, (42) [2024-10-14 04:36:16,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2639 states to 2639 states and 4796 transitions. [2024-10-14 04:36:16,052 INFO L78 Accepts]: Start accepts. Automaton has 2639 states and 4796 transitions. Word has length 122 [2024-10-14 04:36:16,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:36:16,054 INFO L471 AbstractCegarLoop]: Abstraction has 2639 states and 4796 transitions. [2024-10-14 04:36:16,054 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 18.5) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-14 04:36:16,055 INFO L276 IsEmpty]: Start isEmpty. Operand 2639 states and 4796 transitions. [2024-10-14 04:36:16,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-10-14 04:36:16,056 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:36:16,056 INFO L215 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] [2024-10-14 04:36:16,057 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-14 04:36:16,057 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:36:16,057 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:36:16,057 INFO L85 PathProgramCache]: Analyzing trace with hash -1257398465, now seen corresponding path program 1 times [2024-10-14 04:36:16,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:36:16,058 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1264907592] [2024-10-14 04:36:16,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:36:16,058 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:36:16,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:36:16,212 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 04:36:16,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:36:16,256 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-10-14 04:36:16,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:36:16,330 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-14 04:36:16,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:36:16,350 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-10-14 04:36:16,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:36:16,364 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-10-14 04:36:16,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:36:16,370 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:36:16,370 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:36:16,370 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1264907592] [2024-10-14 04:36:16,371 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1264907592] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:36:16,371 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:36:16,371 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 04:36:16,371 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2054107915] [2024-10-14 04:36:16,371 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:36:16,371 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 04:36:16,372 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:36:16,372 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 04:36:16,372 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-14 04:36:16,372 INFO L87 Difference]: Start difference. First operand 2639 states and 4796 transitions. Second operand has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-14 04:36:18,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:36:18,878 INFO L93 Difference]: Finished difference Result 3682 states and 6521 transitions. [2024-10-14 04:36:18,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-14 04:36:18,878 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (6), 4 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 122 [2024-10-14 04:36:18,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:36:18,889 INFO L225 Difference]: With dead ends: 3682 [2024-10-14 04:36:18,890 INFO L226 Difference]: Without dead ends: 3178 [2024-10-14 04:36:18,892 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-10-14 04:36:18,893 INFO L432 NwaCegarLoop]: 4322 mSDtfsCounter, 5033 mSDsluCounter, 17024 mSDsCounter, 0 mSdLazyCounter, 2653 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5048 SdHoareTripleChecker+Valid, 21346 SdHoareTripleChecker+Invalid, 2710 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 2653 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-10-14 04:36:18,893 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5048 Valid, 21346 Invalid, 2710 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [57 Valid, 2653 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-10-14 04:36:18,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3178 states. [2024-10-14 04:36:18,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3178 to 2877. [2024-10-14 04:36:18,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2877 states, 2797 states have (on average 1.8080085806220951) internal successors, (5057), 2802 states have internal predecessors, (5057), 58 states have call successors, (58), 19 states have call predecessors, (58), 20 states have return successors, (61), 57 states have call predecessors, (61), 56 states have call successors, (61) [2024-10-14 04:36:18,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2877 states to 2877 states and 5176 transitions. [2024-10-14 04:36:18,967 INFO L78 Accepts]: Start accepts. Automaton has 2877 states and 5176 transitions. Word has length 122 [2024-10-14 04:36:18,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:36:19,021 INFO L471 AbstractCegarLoop]: Abstraction has 2877 states and 5176 transitions. [2024-10-14 04:36:19,021 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-14 04:36:19,022 INFO L276 IsEmpty]: Start isEmpty. Operand 2877 states and 5176 transitions. [2024-10-14 04:36:19,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-10-14 04:36:19,023 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:36:19,023 INFO L215 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] [2024-10-14 04:36:19,023 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-14 04:36:19,024 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:36:19,024 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:36:19,025 INFO L85 PathProgramCache]: Analyzing trace with hash 131895549, now seen corresponding path program 1 times [2024-10-14 04:36:19,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:36:19,025 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1353452485] [2024-10-14 04:36:19,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:36:19,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:36:19,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:36:19,109 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 04:36:19,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:36:19,148 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-10-14 04:36:19,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:36:19,191 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-14 04:36:19,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:36:19,205 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-10-14 04:36:19,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:36:19,214 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-10-14 04:36:19,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:36:19,218 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:36:19,218 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:36:19,218 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1353452485] [2024-10-14 04:36:19,218 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1353452485] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:36:19,218 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:36:19,218 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 04:36:19,218 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [39994091] [2024-10-14 04:36:19,219 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:36:19,219 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 04:36:19,219 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:36:19,220 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 04:36:19,220 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-14 04:36:19,220 INFO L87 Difference]: Start difference. First operand 2877 states and 5176 transitions. Second operand has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-14 04:36:20,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:36:20,998 INFO L93 Difference]: Finished difference Result 4583 states and 7993 transitions. [2024-10-14 04:36:20,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-14 04:36:20,999 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (6), 4 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 122 [2024-10-14 04:36:20,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:36:21,017 INFO L225 Difference]: With dead ends: 4583 [2024-10-14 04:36:21,017 INFO L226 Difference]: Without dead ends: 3841 [2024-10-14 04:36:21,022 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-10-14 04:36:21,024 INFO L432 NwaCegarLoop]: 4174 mSDtfsCounter, 5113 mSDsluCounter, 16625 mSDsCounter, 0 mSdLazyCounter, 2196 mSolverCounterSat, 91 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5128 SdHoareTripleChecker+Valid, 20799 SdHoareTripleChecker+Invalid, 2287 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 91 IncrementalHoareTripleChecker+Valid, 2196 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-10-14 04:36:21,024 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5128 Valid, 20799 Invalid, 2287 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [91 Valid, 2196 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-10-14 04:36:21,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3841 states. [2024-10-14 04:36:21,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3841 to 3354. [2024-10-14 04:36:21,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3354 states, 3226 states have (on average 1.7811531308121513) internal successors, (5746), 3233 states have internal predecessors, (5746), 92 states have call successors, (92), 31 states have call predecessors, (92), 34 states have return successors, (103), 93 states have call predecessors, (103), 90 states have call successors, (103) [2024-10-14 04:36:21,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3354 states to 3354 states and 5941 transitions. [2024-10-14 04:36:21,126 INFO L78 Accepts]: Start accepts. Automaton has 3354 states and 5941 transitions. Word has length 122 [2024-10-14 04:36:21,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:36:21,128 INFO L471 AbstractCegarLoop]: Abstraction has 3354 states and 5941 transitions. [2024-10-14 04:36:21,129 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-14 04:36:21,129 INFO L276 IsEmpty]: Start isEmpty. Operand 3354 states and 5941 transitions. [2024-10-14 04:36:21,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-10-14 04:36:21,130 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:36:21,131 INFO L215 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] [2024-10-14 04:36:21,131 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-14 04:36:21,131 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:36:21,131 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:36:21,131 INFO L85 PathProgramCache]: Analyzing trace with hash -1901498497, now seen corresponding path program 1 times [2024-10-14 04:36:21,131 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:36:21,131 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1558870149] [2024-10-14 04:36:21,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:36:21,132 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:36:21,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:36:21,200 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 04:36:21,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:36:21,245 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-10-14 04:36:21,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:36:21,284 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-14 04:36:21,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:36:21,297 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-10-14 04:36:21,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:36:21,303 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-10-14 04:36:21,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:36:21,305 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:36:21,305 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:36:21,306 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1558870149] [2024-10-14 04:36:21,306 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1558870149] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:36:21,307 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:36:21,307 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 04:36:21,307 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1868330198] [2024-10-14 04:36:21,307 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:36:21,307 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 04:36:21,309 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:36:21,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 04:36:21,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-14 04:36:21,310 INFO L87 Difference]: Start difference. First operand 3354 states and 5941 transitions. Second operand has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-14 04:36:22,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:36:22,345 INFO L93 Difference]: Finished difference Result 5048 states and 8749 transitions. [2024-10-14 04:36:22,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-14 04:36:22,345 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (6), 4 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 122 [2024-10-14 04:36:22,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:36:22,356 INFO L225 Difference]: With dead ends: 5048 [2024-10-14 04:36:22,357 INFO L226 Difference]: Without dead ends: 3829 [2024-10-14 04:36:22,361 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-10-14 04:36:22,362 INFO L432 NwaCegarLoop]: 4152 mSDtfsCounter, 4742 mSDsluCounter, 16424 mSDsCounter, 0 mSdLazyCounter, 1345 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4758 SdHoareTripleChecker+Valid, 20576 SdHoareTripleChecker+Invalid, 1406 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 1345 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-14 04:36:22,363 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4758 Valid, 20576 Invalid, 1406 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 1345 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-14 04:36:22,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3829 states. [2024-10-14 04:36:22,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3829 to 3354. [2024-10-14 04:36:22,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3354 states, 3226 states have (on average 1.7796032238065715) internal successors, (5741), 3233 states have internal predecessors, (5741), 92 states have call successors, (92), 31 states have call predecessors, (92), 34 states have return successors, (103), 93 states have call predecessors, (103), 90 states have call successors, (103) [2024-10-14 04:36:22,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3354 states to 3354 states and 5936 transitions. [2024-10-14 04:36:22,457 INFO L78 Accepts]: Start accepts. Automaton has 3354 states and 5936 transitions. Word has length 122 [2024-10-14 04:36:22,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:36:22,458 INFO L471 AbstractCegarLoop]: Abstraction has 3354 states and 5936 transitions. [2024-10-14 04:36:22,458 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-14 04:36:22,458 INFO L276 IsEmpty]: Start isEmpty. Operand 3354 states and 5936 transitions. [2024-10-14 04:36:22,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-10-14 04:36:22,459 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:36:22,459 INFO L215 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] [2024-10-14 04:36:22,460 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-14 04:36:22,460 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:36:22,460 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:36:22,460 INFO L85 PathProgramCache]: Analyzing trace with hash 526760125, now seen corresponding path program 1 times [2024-10-14 04:36:22,460 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:36:22,460 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1212203219] [2024-10-14 04:36:22,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:36:22,461 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:36:22,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:36:22,516 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 04:36:22,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:36:22,550 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-10-14 04:36:22,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:36:22,587 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-14 04:36:22,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:36:22,599 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-10-14 04:36:22,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:36:22,604 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-10-14 04:36:22,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:36:22,609 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:36:22,609 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:36:22,609 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1212203219] [2024-10-14 04:36:22,609 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1212203219] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:36:22,610 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:36:22,610 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 04:36:22,610 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [628660684] [2024-10-14 04:36:22,610 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:36:22,611 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 04:36:22,611 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:36:22,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 04:36:22,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-14 04:36:22,612 INFO L87 Difference]: Start difference. First operand 3354 states and 5936 transitions. Second operand has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-14 04:36:23,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:36:23,492 INFO L93 Difference]: Finished difference Result 5037 states and 8713 transitions. [2024-10-14 04:36:23,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-14 04:36:23,492 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (6), 4 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 122 [2024-10-14 04:36:23,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:36:23,505 INFO L225 Difference]: With dead ends: 5037 [2024-10-14 04:36:23,505 INFO L226 Difference]: Without dead ends: 3818 [2024-10-14 04:36:23,510 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-10-14 04:36:23,511 INFO L432 NwaCegarLoop]: 4152 mSDtfsCounter, 4848 mSDsluCounter, 12339 mSDsCounter, 0 mSdLazyCounter, 1190 mSolverCounterSat, 85 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4864 SdHoareTripleChecker+Valid, 16491 SdHoareTripleChecker+Invalid, 1275 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 85 IncrementalHoareTripleChecker+Valid, 1190 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-14 04:36:23,511 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4864 Valid, 16491 Invalid, 1275 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [85 Valid, 1190 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-14 04:36:23,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3818 states. [2024-10-14 04:36:23,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3818 to 3354. [2024-10-14 04:36:23,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3354 states, 3226 states have (on average 1.778053316800992) internal successors, (5736), 3233 states have internal predecessors, (5736), 92 states have call successors, (92), 31 states have call predecessors, (92), 34 states have return successors, (103), 93 states have call predecessors, (103), 90 states have call successors, (103) [2024-10-14 04:36:23,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3354 states to 3354 states and 5931 transitions. [2024-10-14 04:36:23,612 INFO L78 Accepts]: Start accepts. Automaton has 3354 states and 5931 transitions. Word has length 122 [2024-10-14 04:36:23,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:36:23,612 INFO L471 AbstractCegarLoop]: Abstraction has 3354 states and 5931 transitions. [2024-10-14 04:36:23,612 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-14 04:36:23,612 INFO L276 IsEmpty]: Start isEmpty. Operand 3354 states and 5931 transitions. [2024-10-14 04:36:23,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-10-14 04:36:23,614 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:36:23,614 INFO L215 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] [2024-10-14 04:36:23,614 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-14 04:36:23,614 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:36:23,614 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:36:23,614 INFO L85 PathProgramCache]: Analyzing trace with hash -1870710405, now seen corresponding path program 1 times [2024-10-14 04:36:23,615 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:36:23,615 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2024615570] [2024-10-14 04:36:23,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:36:23,615 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:36:23,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:36:23,675 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 04:36:23,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:36:23,709 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-10-14 04:36:23,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:36:23,782 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-14 04:36:23,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:36:23,795 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-10-14 04:36:23,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:36:23,801 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-10-14 04:36:23,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:36:23,803 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:36:23,804 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:36:23,804 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2024615570] [2024-10-14 04:36:23,804 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2024615570] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:36:23,804 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:36:23,804 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 04:36:23,804 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1467590460] [2024-10-14 04:36:23,804 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:36:23,805 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 04:36:23,805 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:36:23,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 04:36:23,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-14 04:36:23,806 INFO L87 Difference]: Start difference. First operand 3354 states and 5931 transitions. Second operand has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-14 04:36:25,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:36:25,760 INFO L93 Difference]: Finished difference Result 6295 states and 10728 transitions. [2024-10-14 04:36:25,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-14 04:36:25,762 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (6), 4 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 122 [2024-10-14 04:36:25,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:36:25,788 INFO L225 Difference]: With dead ends: 6295 [2024-10-14 04:36:25,791 INFO L226 Difference]: Without dead ends: 5076 [2024-10-14 04:36:25,796 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-10-14 04:36:25,797 INFO L432 NwaCegarLoop]: 4320 mSDtfsCounter, 5016 mSDsluCounter, 17024 mSDsCounter, 0 mSdLazyCounter, 2574 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5031 SdHoareTripleChecker+Valid, 21344 SdHoareTripleChecker+Invalid, 2633 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 2574 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-10-14 04:36:25,798 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5031 Valid, 21344 Invalid, 2633 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 2574 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-10-14 04:36:25,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5076 states. [2024-10-14 04:36:25,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5076 to 4323. [2024-10-14 04:36:25,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4323 states, 4099 states have (on average 1.738716760185411) internal successors, (7127), 4110 states have internal predecessors, (7127), 160 states have call successors, (160), 55 states have call predecessors, (160), 62 states have return successors, (193), 165 states have call predecessors, (193), 158 states have call successors, (193) [2024-10-14 04:36:25,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4323 states to 4323 states and 7480 transitions. [2024-10-14 04:36:25,935 INFO L78 Accepts]: Start accepts. Automaton has 4323 states and 7480 transitions. Word has length 122 [2024-10-14 04:36:25,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:36:25,935 INFO L471 AbstractCegarLoop]: Abstraction has 4323 states and 7480 transitions. [2024-10-14 04:36:25,935 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-14 04:36:25,936 INFO L276 IsEmpty]: Start isEmpty. Operand 4323 states and 7480 transitions. [2024-10-14 04:36:25,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-10-14 04:36:25,937 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:36:25,937 INFO L215 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] [2024-10-14 04:36:25,937 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-14 04:36:25,938 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:36:25,938 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:36:25,938 INFO L85 PathProgramCache]: Analyzing trace with hash -839669507, now seen corresponding path program 1 times [2024-10-14 04:36:25,938 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:36:25,938 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1073261788] [2024-10-14 04:36:25,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:36:25,938 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:36:25,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:36:25,995 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 04:36:25,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:36:26,028 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-10-14 04:36:26,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:36:26,073 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-14 04:36:26,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:36:26,081 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-10-14 04:36:26,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:36:26,086 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-10-14 04:36:26,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:36:26,089 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:36:26,089 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:36:26,089 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1073261788] [2024-10-14 04:36:26,089 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1073261788] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:36:26,089 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:36:26,089 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 04:36:26,090 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1983293322] [2024-10-14 04:36:26,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:36:26,090 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 04:36:26,090 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:36:26,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 04:36:26,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-14 04:36:26,094 INFO L87 Difference]: Start difference. First operand 4323 states and 7480 transitions. Second operand has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-14 04:36:27,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:36:27,270 INFO L93 Difference]: Finished difference Result 7271 states and 12318 transitions. [2024-10-14 04:36:27,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-14 04:36:27,272 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (6), 4 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 122 [2024-10-14 04:36:27,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:36:27,284 INFO L225 Difference]: With dead ends: 7271 [2024-10-14 04:36:27,285 INFO L226 Difference]: Without dead ends: 5083 [2024-10-14 04:36:27,290 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-10-14 04:36:27,292 INFO L432 NwaCegarLoop]: 4152 mSDtfsCounter, 4738 mSDsluCounter, 16424 mSDsCounter, 0 mSdLazyCounter, 1295 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4754 SdHoareTripleChecker+Valid, 20576 SdHoareTripleChecker+Invalid, 1356 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 1295 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-10-14 04:36:27,292 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4754 Valid, 20576 Invalid, 1356 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 1295 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-10-14 04:36:27,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5083 states. [2024-10-14 04:36:27,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5083 to 4323. [2024-10-14 04:36:27,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4323 states, 4099 states have (on average 1.7365211027079777) internal successors, (7118), 4110 states have internal predecessors, (7118), 160 states have call successors, (160), 55 states have call predecessors, (160), 62 states have return successors, (193), 165 states have call predecessors, (193), 158 states have call successors, (193) [2024-10-14 04:36:27,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4323 states to 4323 states and 7471 transitions. [2024-10-14 04:36:27,491 INFO L78 Accepts]: Start accepts. Automaton has 4323 states and 7471 transitions. Word has length 122 [2024-10-14 04:36:27,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:36:27,491 INFO L471 AbstractCegarLoop]: Abstraction has 4323 states and 7471 transitions. [2024-10-14 04:36:27,491 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-14 04:36:27,491 INFO L276 IsEmpty]: Start isEmpty. Operand 4323 states and 7471 transitions. [2024-10-14 04:36:27,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-10-14 04:36:27,494 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:36:27,494 INFO L215 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] [2024-10-14 04:36:27,494 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-14 04:36:27,494 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:36:27,495 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:36:27,495 INFO L85 PathProgramCache]: Analyzing trace with hash 1548894523, now seen corresponding path program 1 times [2024-10-14 04:36:27,496 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:36:27,496 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1559959522] [2024-10-14 04:36:27,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:36:27,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:36:27,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:36:27,568 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 04:36:27,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:36:27,609 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-10-14 04:36:27,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:36:27,654 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-14 04:36:27,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:36:27,665 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-10-14 04:36:27,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:36:27,675 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-10-14 04:36:27,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:36:27,678 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:36:27,678 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:36:27,679 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1559959522] [2024-10-14 04:36:27,679 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1559959522] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:36:27,679 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:36:27,679 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 04:36:27,679 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1997671252] [2024-10-14 04:36:27,679 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:36:27,680 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 04:36:27,680 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:36:27,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 04:36:27,681 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-14 04:36:27,681 INFO L87 Difference]: Start difference. First operand 4323 states and 7471 transitions. Second operand has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-14 04:36:29,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:36:29,806 INFO L93 Difference]: Finished difference Result 9746 states and 16269 transitions. [2024-10-14 04:36:29,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-14 04:36:29,807 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (6), 4 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 122 [2024-10-14 04:36:29,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:36:29,824 INFO L225 Difference]: With dead ends: 9746 [2024-10-14 04:36:29,824 INFO L226 Difference]: Without dead ends: 7558 [2024-10-14 04:36:29,831 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-10-14 04:36:29,833 INFO L432 NwaCegarLoop]: 4320 mSDtfsCounter, 5008 mSDsluCounter, 17024 mSDsCounter, 0 mSdLazyCounter, 2536 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5023 SdHoareTripleChecker+Valid, 21344 SdHoareTripleChecker+Invalid, 2595 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 2536 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-10-14 04:36:29,833 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5023 Valid, 21344 Invalid, 2595 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 2536 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-10-14 04:36:29,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7558 states. [2024-10-14 04:36:30,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7558 to 6271. [2024-10-14 04:36:30,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6271 states, 5855 states have (on average 1.690862510674637) internal successors, (9900), 5874 states have internal predecessors, (9900), 296 states have call successors, (296), 103 states have call predecessors, (296), 118 states have return successors, (391), 309 states have call predecessors, (391), 294 states have call successors, (391) [2024-10-14 04:36:30,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6271 states to 6271 states and 10587 transitions. [2024-10-14 04:36:30,120 INFO L78 Accepts]: Start accepts. Automaton has 6271 states and 10587 transitions. Word has length 122 [2024-10-14 04:36:30,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:36:30,122 INFO L471 AbstractCegarLoop]: Abstraction has 6271 states and 10587 transitions. [2024-10-14 04:36:30,122 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-14 04:36:30,122 INFO L276 IsEmpty]: Start isEmpty. Operand 6271 states and 10587 transitions. [2024-10-14 04:36:30,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-10-14 04:36:30,125 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:36:30,125 INFO L215 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] [2024-10-14 04:36:30,126 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-14 04:36:30,126 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:36:30,126 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:36:30,126 INFO L85 PathProgramCache]: Analyzing trace with hash -1145001667, now seen corresponding path program 1 times [2024-10-14 04:36:30,127 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:36:30,127 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [644789237] [2024-10-14 04:36:30,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:36:30,127 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:36:30,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:36:30,175 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 04:36:30,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:36:30,209 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-10-14 04:36:30,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:36:30,248 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-14 04:36:30,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:36:30,257 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-10-14 04:36:30,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:36:30,261 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-10-14 04:36:30,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:36:30,263 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:36:30,263 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:36:30,263 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [644789237] [2024-10-14 04:36:30,263 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [644789237] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:36:30,263 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:36:30,263 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 04:36:30,264 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2072791058] [2024-10-14 04:36:30,264 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:36:30,264 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 04:36:30,264 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:36:30,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 04:36:30,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-14 04:36:30,264 INFO L87 Difference]: Start difference. First operand 6271 states and 10587 transitions. Second operand has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-14 04:36:32,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:36:32,559 INFO L93 Difference]: Finished difference Result 18328 states and 30157 transitions. [2024-10-14 04:36:32,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-14 04:36:32,560 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (6), 4 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 122 [2024-10-14 04:36:32,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:36:32,591 INFO L225 Difference]: With dead ends: 18328 [2024-10-14 04:36:32,591 INFO L226 Difference]: Without dead ends: 14192 [2024-10-14 04:36:32,601 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-10-14 04:36:32,602 INFO L432 NwaCegarLoop]: 4318 mSDtfsCounter, 5301 mSDsluCounter, 17019 mSDsCounter, 0 mSdLazyCounter, 2513 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5325 SdHoareTripleChecker+Valid, 21337 SdHoareTripleChecker+Invalid, 2575 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 2513 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-10-14 04:36:32,603 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5325 Valid, 21337 Invalid, 2575 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 2513 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-10-14 04:36:32,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14192 states. [2024-10-14 04:36:32,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14192 to 10148. [2024-10-14 04:36:32,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10148 states, 9364 states have (on average 1.6516445963263562) internal successors, (15466), 9399 states have internal predecessors, (15466), 552 states have call successors, (552), 199 states have call predecessors, (552), 230 states have return successors, (825), 581 states have call predecessors, (825), 550 states have call successors, (825) [2024-10-14 04:36:32,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10148 states to 10148 states and 16843 transitions. [2024-10-14 04:36:33,002 INFO L78 Accepts]: Start accepts. Automaton has 10148 states and 16843 transitions. Word has length 122 [2024-10-14 04:36:33,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:36:33,002 INFO L471 AbstractCegarLoop]: Abstraction has 10148 states and 16843 transitions. [2024-10-14 04:36:33,003 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-14 04:36:33,003 INFO L276 IsEmpty]: Start isEmpty. Operand 10148 states and 16843 transitions. [2024-10-14 04:36:33,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-10-14 04:36:33,008 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:36:33,008 INFO L215 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] [2024-10-14 04:36:33,008 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-14 04:36:33,008 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:36:33,009 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:36:33,009 INFO L85 PathProgramCache]: Analyzing trace with hash 2093234427, now seen corresponding path program 1 times [2024-10-14 04:36:33,009 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:36:33,009 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1281464968] [2024-10-14 04:36:33,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:36:33,009 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:36:33,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:36:33,057 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 04:36:33,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:36:33,091 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-10-14 04:36:33,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:36:33,133 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-14 04:36:33,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:36:33,141 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-10-14 04:36:33,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:36:33,144 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-10-14 04:36:33,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:36:33,145 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:36:33,145 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:36:33,145 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1281464968] [2024-10-14 04:36:33,145 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1281464968] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:36:33,146 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:36:33,146 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 04:36:33,146 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1972718776] [2024-10-14 04:36:33,146 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:36:33,146 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 04:36:33,146 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:36:33,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 04:36:33,147 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-14 04:36:33,147 INFO L87 Difference]: Start difference. First operand 10148 states and 16843 transitions. Second operand has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-14 04:36:36,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:36:36,201 INFO L93 Difference]: Finished difference Result 33379 states and 54727 transitions. [2024-10-14 04:36:36,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-14 04:36:36,202 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (6), 4 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 122 [2024-10-14 04:36:36,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:36:36,274 INFO L225 Difference]: With dead ends: 33379 [2024-10-14 04:36:36,274 INFO L226 Difference]: Without dead ends: 25366 [2024-10-14 04:36:36,297 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-10-14 04:36:36,298 INFO L432 NwaCegarLoop]: 4200 mSDtfsCounter, 5136 mSDsluCounter, 16647 mSDsCounter, 0 mSdLazyCounter, 2644 mSolverCounterSat, 87 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5150 SdHoareTripleChecker+Valid, 20847 SdHoareTripleChecker+Invalid, 2731 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 87 IncrementalHoareTripleChecker+Valid, 2644 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-10-14 04:36:36,298 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5150 Valid, 20847 Invalid, 2731 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [87 Valid, 2644 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-10-14 04:36:36,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25366 states. [2024-10-14 04:36:37,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25366 to 17581. [2024-10-14 04:36:37,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17581 states, 16077 states have (on average 1.620451576786714) internal successors, (26052), 16144 states have internal predecessors, (26052), 1048 states have call successors, (1048), 391 states have call predecessors, (1048), 454 states have return successors, (1839), 1109 states have call predecessors, (1839), 1046 states have call successors, (1839) [2024-10-14 04:36:37,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17581 states to 17581 states and 28939 transitions. [2024-10-14 04:36:37,205 INFO L78 Accepts]: Start accepts. Automaton has 17581 states and 28939 transitions. Word has length 122 [2024-10-14 04:36:37,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:36:37,205 INFO L471 AbstractCegarLoop]: Abstraction has 17581 states and 28939 transitions. [2024-10-14 04:36:37,206 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-14 04:36:37,206 INFO L276 IsEmpty]: Start isEmpty. Operand 17581 states and 28939 transitions. [2024-10-14 04:36:37,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-10-14 04:36:37,214 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:36:37,214 INFO L215 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] [2024-10-14 04:36:37,214 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-14 04:36:37,215 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:36:37,215 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:36:37,215 INFO L85 PathProgramCache]: Analyzing trace with hash -850347651, now seen corresponding path program 1 times [2024-10-14 04:36:37,215 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:36:37,215 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1698426100] [2024-10-14 04:36:37,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:36:37,215 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:36:37,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:36:37,258 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 04:36:37,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:36:37,292 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-10-14 04:36:37,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:36:37,331 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-14 04:36:37,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:36:37,339 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-10-14 04:36:37,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:36:37,345 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-10-14 04:36:37,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:36:37,348 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:36:37,348 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:36:37,349 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1698426100] [2024-10-14 04:36:37,349 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1698426100] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:36:37,349 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:36:37,349 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 04:36:37,349 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [217045151] [2024-10-14 04:36:37,349 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:36:37,349 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 04:36:37,350 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:36:37,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 04:36:37,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-14 04:36:37,351 INFO L87 Difference]: Start difference. First operand 17581 states and 28939 transitions. Second operand has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-14 04:36:41,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:36:41,002 INFO L93 Difference]: Finished difference Result 62074 states and 101957 transitions. [2024-10-14 04:36:41,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-14 04:36:41,003 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (6), 4 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 122 [2024-10-14 04:36:41,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:36:41,130 INFO L225 Difference]: With dead ends: 62074 [2024-10-14 04:36:41,131 INFO L226 Difference]: Without dead ends: 46628 [2024-10-14 04:36:41,172 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-10-14 04:36:41,172 INFO L432 NwaCegarLoop]: 4318 mSDtfsCounter, 5235 mSDsluCounter, 17019 mSDsCounter, 0 mSdLazyCounter, 2482 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5259 SdHoareTripleChecker+Valid, 21337 SdHoareTripleChecker+Invalid, 2544 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 2482 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-10-14 04:36:41,173 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5259 Valid, 21337 Invalid, 2544 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 2482 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-10-14 04:36:41,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46628 states. [2024-10-14 04:36:43,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46628 to 32766. [2024-10-14 04:36:43,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32766 states, 29854 states have (on average 1.603202250954646) internal successors, (47862), 29985 states have internal predecessors, (47862), 2008 states have call successors, (2008), 775 states have call predecessors, (2008), 902 states have return successors, (4321), 2133 states have call predecessors, (4321), 2006 states have call successors, (4321) [2024-10-14 04:36:43,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32766 states to 32766 states and 54191 transitions. [2024-10-14 04:36:43,239 INFO L78 Accepts]: Start accepts. Automaton has 32766 states and 54191 transitions. Word has length 122 [2024-10-14 04:36:43,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:36:43,239 INFO L471 AbstractCegarLoop]: Abstraction has 32766 states and 54191 transitions. [2024-10-14 04:36:43,239 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-14 04:36:43,239 INFO L276 IsEmpty]: Start isEmpty. Operand 32766 states and 54191 transitions. [2024-10-14 04:36:43,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-10-14 04:36:43,255 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:36:43,255 INFO L215 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] [2024-10-14 04:36:43,255 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-14 04:36:43,255 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:36:43,255 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:36:43,256 INFO L85 PathProgramCache]: Analyzing trace with hash 1825644731, now seen corresponding path program 1 times [2024-10-14 04:36:43,256 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:36:43,256 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1683673925] [2024-10-14 04:36:43,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:36:43,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:36:43,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:36:43,296 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 04:36:43,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:36:43,331 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-10-14 04:36:43,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:36:43,367 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-14 04:36:43,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:36:43,374 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-10-14 04:36:43,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:36:43,378 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-10-14 04:36:43,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:36:43,380 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:36:43,380 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:36:43,380 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1683673925] [2024-10-14 04:36:43,380 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1683673925] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:36:43,380 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:36:43,380 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 04:36:43,380 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [447004355] [2024-10-14 04:36:43,381 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:36:43,381 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 04:36:43,381 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:36:43,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 04:36:43,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-14 04:36:43,382 INFO L87 Difference]: Start difference. First operand 32766 states and 54191 transitions. Second operand has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-14 04:36:49,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:36:49,727 INFO L93 Difference]: Finished difference Result 117735 states and 195799 transitions. [2024-10-14 04:36:49,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-14 04:36:49,728 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (6), 4 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 122 [2024-10-14 04:36:49,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:36:50,086 INFO L225 Difference]: With dead ends: 117735 [2024-10-14 04:36:50,087 INFO L226 Difference]: Without dead ends: 87104 [2024-10-14 04:36:50,203 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-10-14 04:36:50,204 INFO L432 NwaCegarLoop]: 4318 mSDtfsCounter, 5044 mSDsluCounter, 17019 mSDsCounter, 0 mSdLazyCounter, 2770 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5058 SdHoareTripleChecker+Valid, 21337 SdHoareTripleChecker+Invalid, 2831 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 2770 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-10-14 04:36:50,204 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5058 Valid, 21337 Invalid, 2831 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 2770 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-10-14 04:36:50,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87104 states. [2024-10-14 04:36:54,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87104 to 63264. [2024-10-14 04:36:54,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63264 states, 57600 states have (on average 1.5948958333333334) internal successors, (91866), 57859 states have internal predecessors, (91866), 3864 states have call successors, (3864), 1543 states have call predecessors, (3864), 1798 states have return successors, (10679), 4117 states have call predecessors, (10679), 3862 states have call successors, (10679) [2024-10-14 04:36:54,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63264 states to 63264 states and 106409 transitions. [2024-10-14 04:36:54,562 INFO L78 Accepts]: Start accepts. Automaton has 63264 states and 106409 transitions. Word has length 122 [2024-10-14 04:36:54,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:36:54,563 INFO L471 AbstractCegarLoop]: Abstraction has 63264 states and 106409 transitions. [2024-10-14 04:36:54,563 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-14 04:36:54,563 INFO L276 IsEmpty]: Start isEmpty. Operand 63264 states and 106409 transitions. [2024-10-14 04:36:54,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-10-14 04:36:54,592 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:36:54,592 INFO L215 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] [2024-10-14 04:36:54,592 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-14 04:36:54,592 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:36:54,593 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:36:54,593 INFO L85 PathProgramCache]: Analyzing trace with hash 1797144441, now seen corresponding path program 1 times [2024-10-14 04:36:54,593 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:36:54,593 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [868054808] [2024-10-14 04:36:54,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:36:54,593 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:36:54,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:36:54,633 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 04:36:54,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:36:54,666 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-10-14 04:36:54,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:36:54,707 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-14 04:36:54,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:36:54,714 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-10-14 04:36:54,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:36:54,718 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-10-14 04:36:54,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:36:54,720 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:36:54,720 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:36:54,720 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [868054808] [2024-10-14 04:36:54,720 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [868054808] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:36:54,721 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:36:54,721 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 04:36:54,721 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1836053761] [2024-10-14 04:36:54,721 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:36:54,721 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 04:36:54,721 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:36:54,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 04:36:54,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-14 04:36:54,722 INFO L87 Difference]: Start difference. First operand 63264 states and 106409 transitions. Second operand has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-14 04:37:05,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:37:05,599 INFO L93 Difference]: Finished difference Result 228935 states and 388815 transitions. [2024-10-14 04:37:05,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-14 04:37:05,599 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (6), 4 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 122 [2024-10-14 04:37:05,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:37:06,272 INFO L225 Difference]: With dead ends: 228935 [2024-10-14 04:37:06,272 INFO L226 Difference]: Without dead ends: 167806 [2024-10-14 04:37:06,399 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-10-14 04:37:06,400 INFO L432 NwaCegarLoop]: 4318 mSDtfsCounter, 5124 mSDsluCounter, 17019 mSDsCounter, 0 mSdLazyCounter, 2442 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5148 SdHoareTripleChecker+Valid, 21337 SdHoareTripleChecker+Invalid, 2504 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 2442 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-10-14 04:37:06,400 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5148 Valid, 21337 Invalid, 2504 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 2442 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-10-14 04:37:06,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167806 states.