./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/systemc/token_ring.11.cil-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 84cfde4a Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/systemc/token_ring.11.cil-1.c -s /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-clean/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 79f20a4b12634e812af836a5fe92e9d987e7766e2c28337c49504608346f2347 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-84cfde4 [2024-10-11 03:14:11,028 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-11 03:14:11,111 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-11 03:14:11,116 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-11 03:14:11,117 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-11 03:14:11,137 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-11 03:14:11,139 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-11 03:14:11,139 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-11 03:14:11,140 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-11 03:14:11,141 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-11 03:14:11,142 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-11 03:14:11,142 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-11 03:14:11,142 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-11 03:14:11,143 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-11 03:14:11,145 INFO L153 SettingsManager]: * Use SBE=true [2024-10-11 03:14:11,145 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-11 03:14:11,145 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-11 03:14:11,146 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-11 03:14:11,146 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-11 03:14:11,146 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-11 03:14:11,146 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-11 03:14:11,150 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-11 03:14:11,151 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-11 03:14:11,151 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-11 03:14:11,151 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-11 03:14:11,151 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-11 03:14:11,151 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-11 03:14:11,152 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-11 03:14:11,152 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-11 03:14:11,152 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-11 03:14:11,152 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-11 03:14:11,153 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-11 03:14:11,153 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 03:14:11,153 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-11 03:14:11,154 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-11 03:14:11,154 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-11 03:14:11,154 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-11 03:14:11,155 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-11 03:14:11,156 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-11 03:14:11,156 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-11 03:14:11,156 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-11 03:14:11,157 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-11 03:14:11,157 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-clean/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 79f20a4b12634e812af836a5fe92e9d987e7766e2c28337c49504608346f2347 [2024-10-11 03:14:11,409 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-11 03:14:11,429 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-11 03:14:11,432 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-11 03:14:11,433 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-11 03:14:11,434 INFO L274 PluginConnector]: CDTParser initialized [2024-10-11 03:14:11,435 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/systemc/token_ring.11.cil-1.c [2024-10-11 03:14:12,881 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-11 03:14:13,122 INFO L384 CDTParser]: Found 1 translation units. [2024-10-11 03:14:13,123 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/systemc/token_ring.11.cil-1.c [2024-10-11 03:14:13,147 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/3066509c4/d8dc6cf1ea8e47cd9deace24f6fe3d58/FLAGb45a3d26a [2024-10-11 03:14:13,163 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/3066509c4/d8dc6cf1ea8e47cd9deace24f6fe3d58 [2024-10-11 03:14:13,166 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-11 03:14:13,168 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-11 03:14:13,169 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-11 03:14:13,169 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-11 03:14:13,175 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-11 03:14:13,176 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 03:14:13" (1/1) ... [2024-10-11 03:14:13,179 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f76322a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:14:13, skipping insertion in model container [2024-10-11 03:14:13,179 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 03:14:13" (1/1) ... [2024-10-11 03:14:13,229 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-11 03:14:13,398 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/systemc/token_ring.11.cil-1.c[671,684] [2024-10-11 03:14:13,602 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 03:14:13,617 INFO L200 MainTranslator]: Completed pre-run [2024-10-11 03:14:13,629 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/systemc/token_ring.11.cil-1.c[671,684] [2024-10-11 03:14:13,710 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 03:14:13,744 INFO L204 MainTranslator]: Completed translation [2024-10-11 03:14:13,744 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:14:13 WrapperNode [2024-10-11 03:14:13,744 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-11 03:14:13,745 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-11 03:14:13,745 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-11 03:14:13,745 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-11 03:14:13,751 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:14:13" (1/1) ... [2024-10-11 03:14:13,765 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:14:13" (1/1) ... [2024-10-11 03:14:13,821 INFO L138 Inliner]: procedures = 50, calls = 65, calls flagged for inlining = 33, calls inlined = 33, statements flattened = 825 [2024-10-11 03:14:13,822 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-11 03:14:13,827 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-11 03:14:13,827 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-11 03:14:13,827 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-11 03:14:13,840 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:14:13" (1/1) ... [2024-10-11 03:14:13,841 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:14:13" (1/1) ... [2024-10-11 03:14:13,845 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:14:13" (1/1) ... [2024-10-11 03:14:13,874 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]. [2024-10-11 03:14:13,874 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:14:13" (1/1) ... [2024-10-11 03:14:13,875 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:14:13" (1/1) ... [2024-10-11 03:14:13,888 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:14:13" (1/1) ... [2024-10-11 03:14:13,908 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:14:13" (1/1) ... [2024-10-11 03:14:13,915 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:14:13" (1/1) ... [2024-10-11 03:14:13,928 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:14:13" (1/1) ... [2024-10-11 03:14:13,938 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-11 03:14:13,939 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-11 03:14:13,939 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-11 03:14:13,939 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-11 03:14:13,940 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:14:13" (1/1) ... [2024-10-11 03:14:13,947 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 03:14:13,957 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 03:14:13,975 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-11 03:14:13,982 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-11 03:14:14,028 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-11 03:14:14,028 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2024-10-11 03:14:14,029 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2024-10-11 03:14:14,029 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2024-10-11 03:14:14,029 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2024-10-11 03:14:14,029 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2024-10-11 03:14:14,030 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2024-10-11 03:14:14,030 INFO L130 BoogieDeclarations]: Found specification of procedure error [2024-10-11 03:14:14,030 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2024-10-11 03:14:14,030 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2024-10-11 03:14:14,030 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2024-10-11 03:14:14,030 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2024-10-11 03:14:14,030 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2024-10-11 03:14:14,030 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2024-10-11 03:14:14,030 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2024-10-11 03:14:14,030 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-11 03:14:14,031 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-11 03:14:14,031 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-11 03:14:14,175 INFO L238 CfgBuilder]: Building ICFG [2024-10-11 03:14:14,177 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-11 03:14:15,072 INFO L? ?]: Removed 95 outVars from TransFormulas that were not future-live. [2024-10-11 03:14:15,095 INFO L287 CfgBuilder]: Performing block encoding [2024-10-11 03:14:15,218 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-11 03:14:15,220 INFO L314 CfgBuilder]: Removed 14 assume(true) statements. [2024-10-11 03:14:15,220 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 03:14:15 BoogieIcfgContainer [2024-10-11 03:14:15,221 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-11 03:14:15,223 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-11 03:14:15,223 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-11 03:14:15,226 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-11 03:14:15,227 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 03:14:13" (1/3) ... [2024-10-11 03:14:15,228 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3153f4e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 03:14:15, skipping insertion in model container [2024-10-11 03:14:15,228 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:14:13" (2/3) ... [2024-10-11 03:14:15,229 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3153f4e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 03:14:15, skipping insertion in model container [2024-10-11 03:14:15,230 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 03:14:15" (3/3) ... [2024-10-11 03:14:15,231 INFO L112 eAbstractionObserver]: Analyzing ICFG token_ring.11.cil-1.c [2024-10-11 03:14:15,246 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-11 03:14:15,247 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-11 03:14:15,322 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-11 03:14:15,329 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;@2da31f6a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-11 03:14:15,329 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-11 03:14:15,335 INFO L276 IsEmpty]: Start isEmpty. Operand has 333 states, 297 states have (on average 1.7373737373737375) internal successors, (516), 301 states have internal predecessors, (516), 27 states have call successors, (27), 7 states have call predecessors, (27), 7 states have return successors, (27), 26 states have call predecessors, (27), 27 states have call successors, (27) [2024-10-11 03:14:15,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-10-11 03:14:15,353 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:14:15,354 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:14:15,354 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:14:15,360 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:14:15,361 INFO L85 PathProgramCache]: Analyzing trace with hash -1682378618, now seen corresponding path program 1 times [2024-10-11 03:14:15,370 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:14:15,370 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2051390748] [2024-10-11 03:14:15,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:14:15,371 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:14:15,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:14:15,780 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 03:14:15,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:14:15,905 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-11 03:14:15,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:14:15,976 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-10-11 03:14:15,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:14:16,025 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-10-11 03:14:16,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:14:16,072 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-10-11 03:14:16,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:14:16,084 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:14:16,085 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:14:16,085 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2051390748] [2024-10-11 03:14:16,086 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2051390748] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:14:16,086 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:14:16,086 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 03:14:16,088 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1327466770] [2024-10-11 03:14:16,089 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:14:16,092 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 03:14:16,092 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:14:16,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 03:14:16,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-11 03:14:16,118 INFO L87 Difference]: Start difference. First operand has 333 states, 297 states have (on average 1.7373737373737375) internal successors, (516), 301 states have internal predecessors, (516), 27 states have call successors, (27), 7 states have call predecessors, (27), 7 states have return successors, (27), 26 states have call predecessors, (27), 27 states have call successors, (27) Second operand has 5 states, 5 states have (on average 28.0) internal successors, (140), 3 states have internal predecessors, (140), 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) [2024-10-11 03:14:18,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:14:18,132 INFO L93 Difference]: Finished difference Result 779 states and 1345 transitions. [2024-10-11 03:14:18,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 03:14:18,135 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.0) internal successors, (140), 3 states have internal predecessors, (140), 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 151 [2024-10-11 03:14:18,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:14:18,155 INFO L225 Difference]: With dead ends: 779 [2024-10-11 03:14:18,156 INFO L226 Difference]: Without dead ends: 450 [2024-10-11 03:14:18,163 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-10-11 03:14:18,169 INFO L432 NwaCegarLoop]: 290 mSDtfsCounter, 920 mSDsluCounter, 323 mSDsCounter, 0 mSdLazyCounter, 982 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 943 SdHoareTripleChecker+Valid, 613 SdHoareTripleChecker+Invalid, 1040 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 982 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-10-11 03:14:18,169 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [943 Valid, 613 Invalid, 1040 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 982 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-10-11 03:14:18,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 450 states. [2024-10-11 03:14:18,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 450 to 330. [2024-10-11 03:14:18,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 330 states, 296 states have (on average 1.635135135135135) internal successors, (484), 298 states have internal predecessors, (484), 27 states have call successors, (27), 7 states have call predecessors, (27), 6 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2024-10-11 03:14:18,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 330 states to 330 states and 536 transitions. [2024-10-11 03:14:18,266 INFO L78 Accepts]: Start accepts. Automaton has 330 states and 536 transitions. Word has length 151 [2024-10-11 03:14:18,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:14:18,266 INFO L471 AbstractCegarLoop]: Abstraction has 330 states and 536 transitions. [2024-10-11 03:14:18,267 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.0) internal successors, (140), 3 states have internal predecessors, (140), 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) [2024-10-11 03:14:18,267 INFO L276 IsEmpty]: Start isEmpty. Operand 330 states and 536 transitions. [2024-10-11 03:14:18,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-10-11 03:14:18,272 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:14:18,273 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:14:18,273 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-11 03:14:18,274 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:14:18,274 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:14:18,274 INFO L85 PathProgramCache]: Analyzing trace with hash -2020666168, now seen corresponding path program 1 times [2024-10-11 03:14:18,275 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:14:18,275 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [346385198] [2024-10-11 03:14:18,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:14:18,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:14:18,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:14:18,395 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 03:14:18,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:14:18,484 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-11 03:14:18,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:14:18,529 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-10-11 03:14:18,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:14:18,557 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-10-11 03:14:18,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:14:18,574 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-10-11 03:14:18,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:14:18,583 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:14:18,586 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:14:18,587 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [346385198] [2024-10-11 03:14:18,587 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [346385198] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:14:18,587 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:14:18,587 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 03:14:18,587 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1726082499] [2024-10-11 03:14:18,588 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:14:18,589 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 03:14:18,591 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:14:18,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 03:14:18,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-11 03:14:18,592 INFO L87 Difference]: Start difference. First operand 330 states and 536 transitions. Second operand has 5 states, 5 states have (on average 28.0) internal successors, (140), 3 states have internal predecessors, (140), 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) [2024-10-11 03:14:20,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:14:20,178 INFO L93 Difference]: Finished difference Result 766 states and 1262 transitions. [2024-10-11 03:14:20,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 03:14:20,179 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.0) internal successors, (140), 3 states have internal predecessors, (140), 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 151 [2024-10-11 03:14:20,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:14:20,183 INFO L225 Difference]: With dead ends: 766 [2024-10-11 03:14:20,184 INFO L226 Difference]: Without dead ends: 450 [2024-10-11 03:14:20,185 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-10-11 03:14:20,187 INFO L432 NwaCegarLoop]: 288 mSDtfsCounter, 909 mSDsluCounter, 320 mSDsCounter, 0 mSdLazyCounter, 978 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 932 SdHoareTripleChecker+Valid, 608 SdHoareTripleChecker+Invalid, 1036 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 978 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-10-11 03:14:20,187 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [932 Valid, 608 Invalid, 1036 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 978 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-10-11 03:14:20,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 450 states. [2024-10-11 03:14:20,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 450 to 330. [2024-10-11 03:14:20,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 330 states, 296 states have (on average 1.6317567567567568) internal successors, (483), 298 states have internal predecessors, (483), 27 states have call successors, (27), 7 states have call predecessors, (27), 6 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2024-10-11 03:14:20,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 330 states to 330 states and 535 transitions. [2024-10-11 03:14:20,243 INFO L78 Accepts]: Start accepts. Automaton has 330 states and 535 transitions. Word has length 151 [2024-10-11 03:14:20,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:14:20,245 INFO L471 AbstractCegarLoop]: Abstraction has 330 states and 535 transitions. [2024-10-11 03:14:20,245 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.0) internal successors, (140), 3 states have internal predecessors, (140), 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) [2024-10-11 03:14:20,245 INFO L276 IsEmpty]: Start isEmpty. Operand 330 states and 535 transitions. [2024-10-11 03:14:20,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-10-11 03:14:20,248 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:14:20,249 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:14:20,249 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-11 03:14:20,249 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:14:20,250 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:14:20,250 INFO L85 PathProgramCache]: Analyzing trace with hash 1856412426, now seen corresponding path program 1 times [2024-10-11 03:14:20,250 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:14:20,250 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1975747608] [2024-10-11 03:14:20,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:14:20,251 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:14:20,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:14:20,390 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 03:14:20,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:14:20,462 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-11 03:14:20,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:14:20,539 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-10-11 03:14:20,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:14:20,559 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-10-11 03:14:20,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:14:20,568 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-10-11 03:14:20,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:14:20,571 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:14:20,571 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:14:20,571 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1975747608] [2024-10-11 03:14:20,572 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1975747608] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:14:20,572 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:14:20,572 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-11 03:14:20,572 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1906347883] [2024-10-11 03:14:20,572 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:14:20,573 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 03:14:20,573 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:14:20,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 03:14:20,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-11 03:14:20,574 INFO L87 Difference]: Start difference. First operand 330 states and 535 transitions. Second operand has 6 states, 6 states have (on average 23.333333333333332) internal successors, (140), 4 states have internal predecessors, (140), 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) [2024-10-11 03:14:23,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:14:23,273 INFO L93 Difference]: Finished difference Result 1213 states and 2011 transitions. [2024-10-11 03:14:23,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-11 03:14:23,274 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 23.333333333333332) internal successors, (140), 4 states have internal predecessors, (140), 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 151 [2024-10-11 03:14:23,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:14:23,279 INFO L225 Difference]: With dead ends: 1213 [2024-10-11 03:14:23,280 INFO L226 Difference]: Without dead ends: 900 [2024-10-11 03:14:23,281 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-10-11 03:14:23,283 INFO L432 NwaCegarLoop]: 258 mSDtfsCounter, 1383 mSDsluCounter, 769 mSDsCounter, 0 mSdLazyCounter, 2129 mSolverCounterSat, 112 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1401 SdHoareTripleChecker+Valid, 1027 SdHoareTripleChecker+Invalid, 2241 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 112 IncrementalHoareTripleChecker+Valid, 2129 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-10-11 03:14:23,286 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1401 Valid, 1027 Invalid, 2241 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [112 Valid, 2129 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-10-11 03:14:23,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 900 states. [2024-10-11 03:14:23,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 900 to 659. [2024-10-11 03:14:23,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 659 states, 598 states have (on average 1.6421404682274248) internal successors, (982), 601 states have internal predecessors, (982), 47 states have call successors, (47), 13 states have call predecessors, (47), 13 states have return successors, (48), 45 states have call predecessors, (48), 45 states have call successors, (48) [2024-10-11 03:14:23,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 659 states to 659 states and 1077 transitions. [2024-10-11 03:14:23,343 INFO L78 Accepts]: Start accepts. Automaton has 659 states and 1077 transitions. Word has length 151 [2024-10-11 03:14:23,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:14:23,344 INFO L471 AbstractCegarLoop]: Abstraction has 659 states and 1077 transitions. [2024-10-11 03:14:23,344 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 23.333333333333332) internal successors, (140), 4 states have internal predecessors, (140), 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) [2024-10-11 03:14:23,344 INFO L276 IsEmpty]: Start isEmpty. Operand 659 states and 1077 transitions. [2024-10-11 03:14:23,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-10-11 03:14:23,367 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:14:23,367 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:14:23,368 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-11 03:14:23,368 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:14:23,368 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:14:23,369 INFO L85 PathProgramCache]: Analyzing trace with hash -1901588986, now seen corresponding path program 1 times [2024-10-11 03:14:23,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:14:23,369 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [31479393] [2024-10-11 03:14:23,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:14:23,370 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:14:23,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:14:23,517 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 03:14:23,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:14:23,576 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-11 03:14:23,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:14:23,657 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-10-11 03:14:23,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:14:23,674 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-10-11 03:14:23,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:14:23,683 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-10-11 03:14:23,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:14:23,687 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:14:23,687 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:14:23,687 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [31479393] [2024-10-11 03:14:23,688 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [31479393] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:14:23,688 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:14:23,688 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-11 03:14:23,688 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1241840646] [2024-10-11 03:14:23,688 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:14:23,689 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 03:14:23,689 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:14:23,690 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 03:14:23,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-11 03:14:23,690 INFO L87 Difference]: Start difference. First operand 659 states and 1077 transitions. Second operand has 7 states, 7 states have (on average 20.0) internal successors, (140), 5 states have internal predecessors, (140), 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) [2024-10-11 03:14:27,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:14:27,242 INFO L93 Difference]: Finished difference Result 2008 states and 3333 transitions. [2024-10-11 03:14:27,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-11 03:14:27,243 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.0) internal successors, (140), 5 states have internal predecessors, (140), 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 151 [2024-10-11 03:14:27,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:14:27,252 INFO L225 Difference]: With dead ends: 2008 [2024-10-11 03:14:27,253 INFO L226 Difference]: Without dead ends: 1366 [2024-10-11 03:14:27,256 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-10-11 03:14:27,256 INFO L432 NwaCegarLoop]: 454 mSDtfsCounter, 1412 mSDsluCounter, 1508 mSDsCounter, 0 mSdLazyCounter, 3470 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1430 SdHoareTripleChecker+Valid, 1962 SdHoareTripleChecker+Invalid, 3533 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 3470 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2024-10-11 03:14:27,259 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1430 Valid, 1962 Invalid, 3533 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 3470 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2024-10-11 03:14:27,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1366 states. [2024-10-11 03:14:27,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1366 to 963. [2024-10-11 03:14:27,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 963 states, 875 states have (on average 1.6354285714285715) internal successors, (1431), 879 states have internal predecessors, (1431), 67 states have call successors, (67), 19 states have call predecessors, (67), 20 states have return successors, (70), 66 states have call predecessors, (70), 65 states have call successors, (70) [2024-10-11 03:14:27,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 963 states to 963 states and 1568 transitions. [2024-10-11 03:14:27,337 INFO L78 Accepts]: Start accepts. Automaton has 963 states and 1568 transitions. Word has length 151 [2024-10-11 03:14:27,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:14:27,337 INFO L471 AbstractCegarLoop]: Abstraction has 963 states and 1568 transitions. [2024-10-11 03:14:27,338 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.0) internal successors, (140), 5 states have internal predecessors, (140), 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) [2024-10-11 03:14:27,338 INFO L276 IsEmpty]: Start isEmpty. Operand 963 states and 1568 transitions. [2024-10-11 03:14:27,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-10-11 03:14:27,340 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:14:27,340 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:14:27,340 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-11 03:14:27,340 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:14:27,341 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:14:27,341 INFO L85 PathProgramCache]: Analyzing trace with hash 1848505736, now seen corresponding path program 1 times [2024-10-11 03:14:27,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:14:27,341 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [332393949] [2024-10-11 03:14:27,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:14:27,341 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:14:27,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:14:27,471 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 03:14:27,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:14:27,552 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-11 03:14:27,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:14:27,636 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-10-11 03:14:27,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:14:27,659 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-10-11 03:14:27,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:14:27,672 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-10-11 03:14:27,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:14:27,677 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:14:27,677 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:14:27,678 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [332393949] [2024-10-11 03:14:27,678 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [332393949] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:14:27,678 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:14:27,678 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-11 03:14:27,678 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2119542318] [2024-10-11 03:14:27,679 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:14:27,679 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 03:14:27,679 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:14:27,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 03:14:27,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-11 03:14:27,680 INFO L87 Difference]: Start difference. First operand 963 states and 1568 transitions. Second operand has 7 states, 7 states have (on average 20.0) internal successors, (140), 5 states have internal predecessors, (140), 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) [2024-10-11 03:14:30,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:14:30,904 INFO L93 Difference]: Finished difference Result 3173 states and 5258 transitions. [2024-10-11 03:14:30,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-11 03:14:30,904 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.0) internal successors, (140), 5 states have internal predecessors, (140), 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 151 [2024-10-11 03:14:30,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:14:30,915 INFO L225 Difference]: With dead ends: 3173 [2024-10-11 03:14:30,916 INFO L226 Difference]: Without dead ends: 2227 [2024-10-11 03:14:30,919 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-10-11 03:14:30,920 INFO L432 NwaCegarLoop]: 452 mSDtfsCounter, 1410 mSDsluCounter, 1508 mSDsCounter, 0 mSdLazyCounter, 3466 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1428 SdHoareTripleChecker+Valid, 1960 SdHoareTripleChecker+Invalid, 3531 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 3466 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-10-11 03:14:30,920 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1428 Valid, 1960 Invalid, 3531 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 3466 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-10-11 03:14:30,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2227 states. [2024-10-11 03:14:31,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2227 to 1572. [2024-10-11 03:14:31,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1572 states, 1430 states have (on average 1.6293706293706294) internal successors, (2330), 1436 states have internal predecessors, (2330), 107 states have call successors, (107), 31 states have call predecessors, (107), 34 states have return successors, (118), 108 states have call predecessors, (118), 105 states have call successors, (118) [2024-10-11 03:14:31,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1572 states to 1572 states and 2555 transitions. [2024-10-11 03:14:31,031 INFO L78 Accepts]: Start accepts. Automaton has 1572 states and 2555 transitions. Word has length 151 [2024-10-11 03:14:31,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:14:31,032 INFO L471 AbstractCegarLoop]: Abstraction has 1572 states and 2555 transitions. [2024-10-11 03:14:31,032 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.0) internal successors, (140), 5 states have internal predecessors, (140), 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) [2024-10-11 03:14:31,032 INFO L276 IsEmpty]: Start isEmpty. Operand 1572 states and 2555 transitions. [2024-10-11 03:14:31,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-10-11 03:14:31,034 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:14:31,034 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:14:31,034 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-11 03:14:31,034 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:14:31,035 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:14:31,035 INFO L85 PathProgramCache]: Analyzing trace with hash -1771301434, now seen corresponding path program 1 times [2024-10-11 03:14:31,035 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:14:31,035 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1982696499] [2024-10-11 03:14:31,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:14:31,036 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:14:31,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:14:31,147 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 03:14:31,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:14:31,226 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-11 03:14:31,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:14:31,286 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-10-11 03:14:31,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:14:31,305 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-10-11 03:14:31,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:14:31,313 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-10-11 03:14:31,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:14:31,315 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:14:31,316 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:14:31,316 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1982696499] [2024-10-11 03:14:31,316 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1982696499] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:14:31,317 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:14:31,317 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-11 03:14:31,317 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [40435707] [2024-10-11 03:14:31,317 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:14:31,317 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 03:14:31,318 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:14:31,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 03:14:31,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-11 03:14:31,319 INFO L87 Difference]: Start difference. First operand 1572 states and 2555 transitions. Second operand has 7 states, 7 states have (on average 20.0) internal successors, (140), 5 states have internal predecessors, (140), 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) [2024-10-11 03:14:33,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:14:33,098 INFO L93 Difference]: Finished difference Result 3770 states and 6236 transitions. [2024-10-11 03:14:33,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-11 03:14:33,099 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.0) internal successors, (140), 5 states have internal predecessors, (140), 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 151 [2024-10-11 03:14:33,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:14:33,109 INFO L225 Difference]: With dead ends: 3770 [2024-10-11 03:14:33,109 INFO L226 Difference]: Without dead ends: 2215 [2024-10-11 03:14:33,113 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-10-11 03:14:33,114 INFO L432 NwaCegarLoop]: 245 mSDtfsCounter, 1013 mSDsluCounter, 755 mSDsCounter, 0 mSdLazyCounter, 1767 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1032 SdHoareTripleChecker+Valid, 1000 SdHoareTripleChecker+Invalid, 1834 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 1767 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-10-11 03:14:33,114 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1032 Valid, 1000 Invalid, 1834 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 1767 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-10-11 03:14:33,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2215 states. [2024-10-11 03:14:33,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2215 to 1572. [2024-10-11 03:14:33,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1572 states, 1430 states have (on average 1.6258741258741258) internal successors, (2325), 1436 states have internal predecessors, (2325), 107 states have call successors, (107), 31 states have call predecessors, (107), 34 states have return successors, (118), 108 states have call predecessors, (118), 105 states have call successors, (118) [2024-10-11 03:14:33,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1572 states to 1572 states and 2550 transitions. [2024-10-11 03:14:33,249 INFO L78 Accepts]: Start accepts. Automaton has 1572 states and 2550 transitions. Word has length 151 [2024-10-11 03:14:33,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:14:33,249 INFO L471 AbstractCegarLoop]: Abstraction has 1572 states and 2550 transitions. [2024-10-11 03:14:33,249 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.0) internal successors, (140), 5 states have internal predecessors, (140), 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) [2024-10-11 03:14:33,250 INFO L276 IsEmpty]: Start isEmpty. Operand 1572 states and 2550 transitions. [2024-10-11 03:14:33,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-10-11 03:14:33,251 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:14:33,252 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:14:33,252 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-11 03:14:33,252 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:14:33,253 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:14:33,253 INFO L85 PathProgramCache]: Analyzing trace with hash 1575613896, now seen corresponding path program 1 times [2024-10-11 03:14:33,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:14:33,253 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2046920206] [2024-10-11 03:14:33,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:14:33,254 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:14:33,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:14:33,343 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 03:14:33,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:14:33,409 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-11 03:14:33,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:14:33,470 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-10-11 03:14:33,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:14:33,483 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-10-11 03:14:33,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:14:33,493 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-10-11 03:14:33,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:14:33,497 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:14:33,497 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:14:33,497 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2046920206] [2024-10-11 03:14:33,500 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2046920206] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:14:33,500 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:14:33,500 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-11 03:14:33,500 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [921711739] [2024-10-11 03:14:33,501 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:14:33,501 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 03:14:33,501 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:14:33,502 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 03:14:33,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-11 03:14:33,502 INFO L87 Difference]: Start difference. First operand 1572 states and 2550 transitions. Second operand has 7 states, 7 states have (on average 20.0) internal successors, (140), 5 states have internal predecessors, (140), 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) [2024-10-11 03:14:34,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:14:34,972 INFO L93 Difference]: Finished difference Result 3764 states and 6210 transitions. [2024-10-11 03:14:34,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-11 03:14:34,972 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.0) internal successors, (140), 5 states have internal predecessors, (140), 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 151 [2024-10-11 03:14:34,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:14:34,986 INFO L225 Difference]: With dead ends: 3764 [2024-10-11 03:14:34,986 INFO L226 Difference]: Without dead ends: 2209 [2024-10-11 03:14:34,990 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-10-11 03:14:34,992 INFO L432 NwaCegarLoop]: 245 mSDtfsCounter, 1153 mSDsluCounter, 595 mSDsCounter, 0 mSdLazyCounter, 1580 mSolverCounterSat, 94 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1172 SdHoareTripleChecker+Valid, 840 SdHoareTripleChecker+Invalid, 1674 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 94 IncrementalHoareTripleChecker+Valid, 1580 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-10-11 03:14:34,993 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1172 Valid, 840 Invalid, 1674 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [94 Valid, 1580 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-10-11 03:14:34,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2209 states. [2024-10-11 03:14:35,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2209 to 1572. [2024-10-11 03:14:35,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1572 states, 1430 states have (on average 1.6223776223776223) internal successors, (2320), 1436 states have internal predecessors, (2320), 107 states have call successors, (107), 31 states have call predecessors, (107), 34 states have return successors, (118), 108 states have call predecessors, (118), 105 states have call successors, (118) [2024-10-11 03:14:35,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1572 states to 1572 states and 2545 transitions. [2024-10-11 03:14:35,098 INFO L78 Accepts]: Start accepts. Automaton has 1572 states and 2545 transitions. Word has length 151 [2024-10-11 03:14:35,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:14:35,098 INFO L471 AbstractCegarLoop]: Abstraction has 1572 states and 2545 transitions. [2024-10-11 03:14:35,100 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.0) internal successors, (140), 5 states have internal predecessors, (140), 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) [2024-10-11 03:14:35,100 INFO L276 IsEmpty]: Start isEmpty. Operand 1572 states and 2545 transitions. [2024-10-11 03:14:35,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-10-11 03:14:35,102 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:14:35,103 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:14:35,103 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-11 03:14:35,103 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:14:35,103 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:14:35,103 INFO L85 PathProgramCache]: Analyzing trace with hash 990842246, now seen corresponding path program 1 times [2024-10-11 03:14:35,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:14:35,103 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [622537335] [2024-10-11 03:14:35,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:14:35,104 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:14:35,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:14:35,183 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 03:14:35,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:14:35,252 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-11 03:14:35,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:14:35,314 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-10-11 03:14:35,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:14:35,328 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-10-11 03:14:35,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:14:35,336 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-10-11 03:14:35,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:14:35,339 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:14:35,340 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:14:35,340 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [622537335] [2024-10-11 03:14:35,340 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [622537335] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:14:35,340 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:14:35,340 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-11 03:14:35,340 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1529965273] [2024-10-11 03:14:35,340 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:14:35,341 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 03:14:35,341 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:14:35,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 03:14:35,342 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-11 03:14:35,342 INFO L87 Difference]: Start difference. First operand 1572 states and 2545 transitions. Second operand has 7 states, 7 states have (on average 20.0) internal successors, (140), 5 states have internal predecessors, (140), 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) [2024-10-11 03:14:36,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:14:36,848 INFO L93 Difference]: Finished difference Result 3757 states and 6182 transitions. [2024-10-11 03:14:36,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-11 03:14:36,849 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.0) internal successors, (140), 5 states have internal predecessors, (140), 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 151 [2024-10-11 03:14:36,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:14:36,859 INFO L225 Difference]: With dead ends: 3757 [2024-10-11 03:14:36,859 INFO L226 Difference]: Without dead ends: 2202 [2024-10-11 03:14:36,864 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-10-11 03:14:36,864 INFO L432 NwaCegarLoop]: 245 mSDtfsCounter, 1157 mSDsluCounter, 595 mSDsCounter, 0 mSdLazyCounter, 1561 mSolverCounterSat, 94 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1176 SdHoareTripleChecker+Valid, 840 SdHoareTripleChecker+Invalid, 1655 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 94 IncrementalHoareTripleChecker+Valid, 1561 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-10-11 03:14:36,865 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1176 Valid, 840 Invalid, 1655 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [94 Valid, 1561 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-10-11 03:14:36,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2202 states. [2024-10-11 03:14:36,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2202 to 1572. [2024-10-11 03:14:36,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1572 states, 1430 states have (on average 1.618881118881119) internal successors, (2315), 1436 states have internal predecessors, (2315), 107 states have call successors, (107), 31 states have call predecessors, (107), 34 states have return successors, (118), 108 states have call predecessors, (118), 105 states have call successors, (118) [2024-10-11 03:14:36,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1572 states to 1572 states and 2540 transitions. [2024-10-11 03:14:36,979 INFO L78 Accepts]: Start accepts. Automaton has 1572 states and 2540 transitions. Word has length 151 [2024-10-11 03:14:36,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:14:36,979 INFO L471 AbstractCegarLoop]: Abstraction has 1572 states and 2540 transitions. [2024-10-11 03:14:36,979 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.0) internal successors, (140), 5 states have internal predecessors, (140), 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) [2024-10-11 03:14:36,979 INFO L276 IsEmpty]: Start isEmpty. Operand 1572 states and 2540 transitions. [2024-10-11 03:14:36,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-10-11 03:14:36,981 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:14:36,981 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:14:36,982 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-11 03:14:36,982 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:14:36,982 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:14:36,982 INFO L85 PathProgramCache]: Analyzing trace with hash 556336648, now seen corresponding path program 1 times [2024-10-11 03:14:36,982 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:14:36,982 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2133136842] [2024-10-11 03:14:36,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:14:36,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:14:36,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:14:37,056 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 03:14:37,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:14:37,124 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-11 03:14:37,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:14:37,183 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-10-11 03:14:37,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:14:37,199 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-10-11 03:14:37,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:14:37,209 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-10-11 03:14:37,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:14:37,213 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:14:37,213 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:14:37,213 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2133136842] [2024-10-11 03:14:37,214 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2133136842] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:14:37,214 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:14:37,214 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-11 03:14:37,214 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [918708323] [2024-10-11 03:14:37,214 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:14:37,215 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 03:14:37,215 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:14:37,216 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 03:14:37,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-11 03:14:37,217 INFO L87 Difference]: Start difference. First operand 1572 states and 2540 transitions. Second operand has 7 states, 7 states have (on average 20.0) internal successors, (140), 5 states have internal predecessors, (140), 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) [2024-10-11 03:14:38,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:14:38,878 INFO L93 Difference]: Finished difference Result 3745 states and 6144 transitions. [2024-10-11 03:14:38,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-11 03:14:38,879 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.0) internal successors, (140), 5 states have internal predecessors, (140), 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 151 [2024-10-11 03:14:38,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:14:38,892 INFO L225 Difference]: With dead ends: 3745 [2024-10-11 03:14:38,893 INFO L226 Difference]: Without dead ends: 2190 [2024-10-11 03:14:38,897 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-10-11 03:14:38,899 INFO L432 NwaCegarLoop]: 245 mSDtfsCounter, 1011 mSDsluCounter, 755 mSDsCounter, 0 mSdLazyCounter, 1706 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1030 SdHoareTripleChecker+Valid, 1000 SdHoareTripleChecker+Invalid, 1773 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 1706 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-10-11 03:14:38,900 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1030 Valid, 1000 Invalid, 1773 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 1706 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-10-11 03:14:38,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2190 states. [2024-10-11 03:14:39,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2190 to 1572. [2024-10-11 03:14:39,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1572 states, 1430 states have (on average 1.6153846153846154) internal successors, (2310), 1436 states have internal predecessors, (2310), 107 states have call successors, (107), 31 states have call predecessors, (107), 34 states have return successors, (118), 108 states have call predecessors, (118), 105 states have call successors, (118) [2024-10-11 03:14:39,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1572 states to 1572 states and 2535 transitions. [2024-10-11 03:14:39,017 INFO L78 Accepts]: Start accepts. Automaton has 1572 states and 2535 transitions. Word has length 151 [2024-10-11 03:14:39,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:14:39,018 INFO L471 AbstractCegarLoop]: Abstraction has 1572 states and 2535 transitions. [2024-10-11 03:14:39,019 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.0) internal successors, (140), 5 states have internal predecessors, (140), 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) [2024-10-11 03:14:39,019 INFO L276 IsEmpty]: Start isEmpty. Operand 1572 states and 2535 transitions. [2024-10-11 03:14:39,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-10-11 03:14:39,021 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:14:39,021 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:14:39,022 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-11 03:14:39,022 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:14:39,022 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:14:39,022 INFO L85 PathProgramCache]: Analyzing trace with hash -150259958, now seen corresponding path program 1 times [2024-10-11 03:14:39,022 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:14:39,023 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1066470918] [2024-10-11 03:14:39,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:14:39,023 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:14:39,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:14:39,112 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 03:14:39,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:14:39,183 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-11 03:14:39,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:14:39,250 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-10-11 03:14:39,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:14:39,263 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-10-11 03:14:39,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:14:39,269 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-10-11 03:14:39,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:14:39,271 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:14:39,272 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:14:39,272 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1066470918] [2024-10-11 03:14:39,272 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1066470918] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:14:39,272 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:14:39,272 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-11 03:14:39,272 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1610609221] [2024-10-11 03:14:39,272 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:14:39,273 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 03:14:39,273 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:14:39,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 03:14:39,274 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-11 03:14:39,274 INFO L87 Difference]: Start difference. First operand 1572 states and 2535 transitions. Second operand has 7 states, 7 states have (on average 20.0) internal successors, (140), 5 states have internal predecessors, (140), 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) [2024-10-11 03:14:42,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:14:42,488 INFO L93 Difference]: Finished difference Result 5373 states and 8775 transitions. [2024-10-11 03:14:42,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-11 03:14:42,488 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.0) internal successors, (140), 5 states have internal predecessors, (140), 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 151 [2024-10-11 03:14:42,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:14:42,506 INFO L225 Difference]: With dead ends: 5373 [2024-10-11 03:14:42,507 INFO L226 Difference]: Without dead ends: 3818 [2024-10-11 03:14:42,511 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-10-11 03:14:42,512 INFO L432 NwaCegarLoop]: 452 mSDtfsCounter, 1381 mSDsluCounter, 1508 mSDsCounter, 0 mSdLazyCounter, 3336 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1399 SdHoareTripleChecker+Valid, 1960 SdHoareTripleChecker+Invalid, 3401 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 3336 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-10-11 03:14:42,512 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1399 Valid, 1960 Invalid, 3401 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 3336 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-10-11 03:14:42,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3818 states. [2024-10-11 03:14:42,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3818 to 2813. [2024-10-11 03:14:42,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2813 states, 2563 states have (on average 1.6086617245415529) internal successors, (4123), 2573 states have internal predecessors, (4123), 187 states have call successors, (187), 55 states have call predecessors, (187), 62 states have return successors, (220), 192 states have call predecessors, (220), 185 states have call successors, (220) [2024-10-11 03:14:42,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2813 states to 2813 states and 4530 transitions. [2024-10-11 03:14:42,765 INFO L78 Accepts]: Start accepts. Automaton has 2813 states and 4530 transitions. Word has length 151 [2024-10-11 03:14:42,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:14:42,765 INFO L471 AbstractCegarLoop]: Abstraction has 2813 states and 4530 transitions. [2024-10-11 03:14:42,766 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.0) internal successors, (140), 5 states have internal predecessors, (140), 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) [2024-10-11 03:14:42,766 INFO L276 IsEmpty]: Start isEmpty. Operand 2813 states and 4530 transitions. [2024-10-11 03:14:42,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-10-11 03:14:42,770 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:14:42,770 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:14:42,770 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-11 03:14:42,770 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:14:42,771 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:14:42,771 INFO L85 PathProgramCache]: Analyzing trace with hash 796777928, now seen corresponding path program 1 times [2024-10-11 03:14:42,771 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:14:42,772 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1629332611] [2024-10-11 03:14:42,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:14:42,772 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:14:42,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:14:42,871 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 03:14:42,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:14:42,951 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-11 03:14:42,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:14:43,019 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-10-11 03:14:43,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:14:43,032 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-10-11 03:14:43,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:14:43,039 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-10-11 03:14:43,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:14:43,042 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:14:43,042 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:14:43,042 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1629332611] [2024-10-11 03:14:43,042 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1629332611] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:14:43,043 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:14:43,043 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-11 03:14:43,043 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [637871734] [2024-10-11 03:14:43,043 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:14:43,043 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 03:14:43,043 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:14:43,044 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 03:14:43,044 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-11 03:14:43,044 INFO L87 Difference]: Start difference. First operand 2813 states and 4530 transitions. Second operand has 7 states, 7 states have (on average 20.0) internal successors, (140), 5 states have internal predecessors, (140), 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) [2024-10-11 03:14:46,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:14:46,301 INFO L93 Difference]: Finished difference Result 9838 states and 16046 transitions. [2024-10-11 03:14:46,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-11 03:14:46,301 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.0) internal successors, (140), 5 states have internal predecessors, (140), 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 151 [2024-10-11 03:14:46,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:14:46,331 INFO L225 Difference]: With dead ends: 9838 [2024-10-11 03:14:46,332 INFO L226 Difference]: Without dead ends: 7042 [2024-10-11 03:14:46,341 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-10-11 03:14:46,342 INFO L432 NwaCegarLoop]: 452 mSDtfsCounter, 1380 mSDsluCounter, 1508 mSDsCounter, 0 mSdLazyCounter, 3323 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1398 SdHoareTripleChecker+Valid, 1960 SdHoareTripleChecker+Invalid, 3388 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 3323 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-10-11 03:14:46,342 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1398 Valid, 1960 Invalid, 3388 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 3323 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-10-11 03:14:46,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7042 states. [2024-10-11 03:14:46,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7042 to 5292. [2024-10-11 03:14:46,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5292 states, 4826 states have (on average 1.6036054703688354) internal successors, (7739), 4844 states have internal predecessors, (7739), 347 states have call successors, (347), 103 states have call predecessors, (347), 118 states have return successors, (442), 360 states have call predecessors, (442), 345 states have call successors, (442) [2024-10-11 03:14:46,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5292 states to 5292 states and 8528 transitions. [2024-10-11 03:14:46,792 INFO L78 Accepts]: Start accepts. Automaton has 5292 states and 8528 transitions. Word has length 151 [2024-10-11 03:14:46,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:14:46,793 INFO L471 AbstractCegarLoop]: Abstraction has 5292 states and 8528 transitions. [2024-10-11 03:14:46,793 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.0) internal successors, (140), 5 states have internal predecessors, (140), 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) [2024-10-11 03:14:46,793 INFO L276 IsEmpty]: Start isEmpty. Operand 5292 states and 8528 transitions. [2024-10-11 03:14:46,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-10-11 03:14:46,797 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:14:46,798 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:14:46,798 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-11 03:14:46,798 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:14:46,799 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:14:46,799 INFO L85 PathProgramCache]: Analyzing trace with hash 1658611530, now seen corresponding path program 1 times [2024-10-11 03:14:46,799 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:14:46,799 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [45106361] [2024-10-11 03:14:46,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:14:46,799 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:14:46,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:14:46,890 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 03:14:46,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:14:46,967 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-11 03:14:46,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:14:47,038 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-10-11 03:14:47,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:14:47,055 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-10-11 03:14:47,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:14:47,063 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-10-11 03:14:47,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:14:47,066 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:14:47,066 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:14:47,066 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [45106361] [2024-10-11 03:14:47,066 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [45106361] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:14:47,067 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:14:47,067 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-11 03:14:47,067 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [280655656] [2024-10-11 03:14:47,067 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:14:47,068 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 03:14:47,068 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:14:47,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 03:14:47,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-11 03:14:47,069 INFO L87 Difference]: Start difference. First operand 5292 states and 8528 transitions. Second operand has 7 states, 7 states have (on average 20.0) internal successors, (140), 5 states have internal predecessors, (140), 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) [2024-10-11 03:14:50,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:14:50,448 INFO L93 Difference]: Finished difference Result 18759 states and 30630 transitions. [2024-10-11 03:14:50,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-11 03:14:50,449 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.0) internal successors, (140), 5 states have internal predecessors, (140), 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 151 [2024-10-11 03:14:50,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:14:50,500 INFO L225 Difference]: With dead ends: 18759 [2024-10-11 03:14:50,501 INFO L226 Difference]: Without dead ends: 13484 [2024-10-11 03:14:50,519 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-10-11 03:14:50,520 INFO L432 NwaCegarLoop]: 452 mSDtfsCounter, 1379 mSDsluCounter, 1508 mSDsCounter, 0 mSdLazyCounter, 3310 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1397 SdHoareTripleChecker+Valid, 1960 SdHoareTripleChecker+Invalid, 3375 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 3310 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-10-11 03:14:50,520 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1397 Valid, 1960 Invalid, 3375 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 3310 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-10-11 03:14:50,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13484 states. [2024-10-11 03:14:51,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13484 to 10265. [2024-10-11 03:14:51,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10265 states, 9367 states have (on average 1.6006191950464397) internal successors, (14993), 9401 states have internal predecessors, (14993), 667 states have call successors, (667), 199 states have call predecessors, (667), 230 states have return successors, (940), 696 states have call predecessors, (940), 665 states have call successors, (940) [2024-10-11 03:14:51,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10265 states to 10265 states and 16600 transitions. [2024-10-11 03:14:51,335 INFO L78 Accepts]: Start accepts. Automaton has 10265 states and 16600 transitions. Word has length 151 [2024-10-11 03:14:51,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:14:51,335 INFO L471 AbstractCegarLoop]: Abstraction has 10265 states and 16600 transitions. [2024-10-11 03:14:51,336 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.0) internal successors, (140), 5 states have internal predecessors, (140), 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) [2024-10-11 03:14:51,337 INFO L276 IsEmpty]: Start isEmpty. Operand 10265 states and 16600 transitions. [2024-10-11 03:14:51,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-10-11 03:14:51,345 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:14:51,346 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:14:51,346 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-11 03:14:51,346 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:14:51,346 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:14:51,347 INFO L85 PathProgramCache]: Analyzing trace with hash -391797368, now seen corresponding path program 1 times [2024-10-11 03:14:51,347 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:14:51,347 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1806155580] [2024-10-11 03:14:51,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:14:51,347 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:14:51,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:14:51,455 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 03:14:51,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:14:51,527 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-11 03:14:51,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:14:51,583 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-10-11 03:14:51,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:14:51,596 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-10-11 03:14:51,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:14:51,603 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-10-11 03:14:51,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:14:51,607 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:14:51,607 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:14:51,607 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1806155580] [2024-10-11 03:14:51,608 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1806155580] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:14:51,608 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:14:51,608 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-11 03:14:51,608 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [115365420] [2024-10-11 03:14:51,608 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:14:51,608 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 03:14:51,609 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:14:51,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 03:14:51,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-11 03:14:51,610 INFO L87 Difference]: Start difference. First operand 10265 states and 16600 transitions. Second operand has 7 states, 7 states have (on average 20.0) internal successors, (140), 5 states have internal predecessors, (140), 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) [2024-10-11 03:14:53,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:14:53,564 INFO L93 Difference]: Finished difference Result 23895 states and 39237 transitions. [2024-10-11 03:14:53,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-11 03:14:53,564 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.0) internal successors, (140), 5 states have internal predecessors, (140), 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 151 [2024-10-11 03:14:53,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:14:53,619 INFO L225 Difference]: With dead ends: 23895 [2024-10-11 03:14:53,620 INFO L226 Difference]: Without dead ends: 13647 [2024-10-11 03:14:53,654 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-10-11 03:14:53,655 INFO L432 NwaCegarLoop]: 245 mSDtfsCounter, 1154 mSDsluCounter, 595 mSDsCounter, 0 mSdLazyCounter, 1503 mSolverCounterSat, 94 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1173 SdHoareTripleChecker+Valid, 840 SdHoareTripleChecker+Invalid, 1597 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 94 IncrementalHoareTripleChecker+Valid, 1503 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-10-11 03:14:53,655 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1173 Valid, 840 Invalid, 1597 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [94 Valid, 1503 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-10-11 03:14:53,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13647 states. [2024-10-11 03:14:54,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13647 to 10265. [2024-10-11 03:14:54,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10265 states, 9367 states have (on average 1.5970961887477313) internal successors, (14960), 9401 states have internal predecessors, (14960), 667 states have call successors, (667), 199 states have call predecessors, (667), 230 states have return successors, (940), 696 states have call predecessors, (940), 665 states have call successors, (940) [2024-10-11 03:14:54,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10265 states to 10265 states and 16567 transitions. [2024-10-11 03:14:54,544 INFO L78 Accepts]: Start accepts. Automaton has 10265 states and 16567 transitions. Word has length 151 [2024-10-11 03:14:54,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:14:54,545 INFO L471 AbstractCegarLoop]: Abstraction has 10265 states and 16567 transitions. [2024-10-11 03:14:54,546 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.0) internal successors, (140), 5 states have internal predecessors, (140), 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) [2024-10-11 03:14:54,546 INFO L276 IsEmpty]: Start isEmpty. Operand 10265 states and 16567 transitions. [2024-10-11 03:14:54,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-10-11 03:14:54,554 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:14:54,555 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:14:54,555 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-11 03:14:54,555 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:14:54,555 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:14:54,556 INFO L85 PathProgramCache]: Analyzing trace with hash 96249738, now seen corresponding path program 1 times [2024-10-11 03:14:54,556 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:14:54,556 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2096537582] [2024-10-11 03:14:54,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:14:54,556 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:14:54,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:14:54,627 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 03:14:54,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:14:54,693 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-11 03:14:54,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:14:54,750 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-10-11 03:14:54,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:14:54,763 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-10-11 03:14:54,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:14:54,768 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-10-11 03:14:54,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:14:54,770 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:14:54,770 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:14:54,770 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2096537582] [2024-10-11 03:14:54,770 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2096537582] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:14:54,771 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:14:54,771 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-11 03:14:54,771 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [139074717] [2024-10-11 03:14:54,771 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:14:54,771 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 03:14:54,771 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:14:54,772 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 03:14:54,772 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-11 03:14:54,772 INFO L87 Difference]: Start difference. First operand 10265 states and 16567 transitions. Second operand has 7 states, 7 states have (on average 20.0) internal successors, (140), 5 states have internal predecessors, (140), 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) [2024-10-11 03:14:59,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:14:59,222 INFO L93 Difference]: Finished difference Result 41048 states and 67026 transitions. [2024-10-11 03:14:59,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-11 03:14:59,223 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.0) internal successors, (140), 5 states have internal predecessors, (140), 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 151 [2024-10-11 03:14:59,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:14:59,423 INFO L225 Difference]: With dead ends: 41048 [2024-10-11 03:14:59,423 INFO L226 Difference]: Without dead ends: 30800 [2024-10-11 03:14:59,462 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-10-11 03:14:59,462 INFO L432 NwaCegarLoop]: 450 mSDtfsCounter, 1770 mSDsluCounter, 1503 mSDsCounter, 0 mSdLazyCounter, 3262 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1800 SdHoareTripleChecker+Valid, 1953 SdHoareTripleChecker+Invalid, 3330 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 3262 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-10-11 03:14:59,463 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1800 Valid, 1953 Invalid, 3330 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 3262 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-10-11 03:14:59,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30800 states. [2024-10-11 03:15:00,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30800 to 20211. [2024-10-11 03:15:00,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20211 states, 18481 states have (on average 1.5953682160056275) internal successors, (29484), 18547 states have internal predecessors, (29484), 1275 states have call successors, (1275), 391 states have call predecessors, (1275), 454 states have return successors, (2066), 1336 states have call predecessors, (2066), 1273 states have call successors, (2066) [2024-10-11 03:15:01,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20211 states to 20211 states and 32825 transitions. [2024-10-11 03:15:01,065 INFO L78 Accepts]: Start accepts. Automaton has 20211 states and 32825 transitions. Word has length 151 [2024-10-11 03:15:01,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:15:01,066 INFO L471 AbstractCegarLoop]: Abstraction has 20211 states and 32825 transitions. [2024-10-11 03:15:01,066 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.0) internal successors, (140), 5 states have internal predecessors, (140), 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) [2024-10-11 03:15:01,066 INFO L276 IsEmpty]: Start isEmpty. Operand 20211 states and 32825 transitions. [2024-10-11 03:15:01,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-10-11 03:15:01,078 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:15:01,078 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:15:01,078 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-11 03:15:01,078 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:15:01,079 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:15:01,079 INFO L85 PathProgramCache]: Analyzing trace with hash -996385464, now seen corresponding path program 1 times [2024-10-11 03:15:01,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:15:01,079 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [947239287] [2024-10-11 03:15:01,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:15:01,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:15:01,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:15:01,145 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 03:15:01,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:15:01,208 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-11 03:15:01,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:15:01,272 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-10-11 03:15:01,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:15:01,283 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-10-11 03:15:01,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:15:01,288 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-10-11 03:15:01,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:15:01,291 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:15:01,291 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:15:01,291 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [947239287] [2024-10-11 03:15:01,291 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [947239287] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:15:01,292 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:15:01,292 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-11 03:15:01,292 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2133770117] [2024-10-11 03:15:01,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:15:01,292 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 03:15:01,292 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:15:01,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 03:15:01,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-11 03:15:01,293 INFO L87 Difference]: Start difference. First operand 20211 states and 32825 transitions. Second operand has 7 states, 7 states have (on average 20.0) internal successors, (140), 5 states have internal predecessors, (140), 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) [2024-10-11 03:15:08,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:15:08,089 INFO L93 Difference]: Finished difference Result 80320 states and 131986 transitions. [2024-10-11 03:15:08,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-11 03:15:08,090 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.0) internal successors, (140), 5 states have internal predecessors, (140), 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 151 [2024-10-11 03:15:08,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:15:08,523 INFO L225 Difference]: With dead ends: 80320 [2024-10-11 03:15:08,523 INFO L226 Difference]: Without dead ends: 60126 [2024-10-11 03:15:08,579 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-10-11 03:15:08,580 INFO L432 NwaCegarLoop]: 449 mSDtfsCounter, 1467 mSDsluCounter, 1500 mSDsCounter, 0 mSdLazyCounter, 3864 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1484 SdHoareTripleChecker+Valid, 1949 SdHoareTripleChecker+Invalid, 3931 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 3864 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2024-10-11 03:15:08,581 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1484 Valid, 1949 Invalid, 3931 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 3864 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2024-10-11 03:15:08,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60126 states. [2024-10-11 03:15:11,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60126 to 39460. [2024-10-11 03:15:11,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39460 states, 36098 states have (on average 1.5911684857886863) internal successors, (57438), 36228 states have internal predecessors, (57438), 2459 states have call successors, (2459), 775 states have call predecessors, (2459), 902 states have return successors, (4772), 2584 states have call predecessors, (4772), 2457 states have call successors, (4772) [2024-10-11 03:15:11,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39460 states to 39460 states and 64669 transitions. [2024-10-11 03:15:11,596 INFO L78 Accepts]: Start accepts. Automaton has 39460 states and 64669 transitions. Word has length 151 [2024-10-11 03:15:11,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:15:11,597 INFO L471 AbstractCegarLoop]: Abstraction has 39460 states and 64669 transitions. [2024-10-11 03:15:11,597 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.0) internal successors, (140), 5 states have internal predecessors, (140), 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) [2024-10-11 03:15:11,597 INFO L276 IsEmpty]: Start isEmpty. Operand 39460 states and 64669 transitions. [2024-10-11 03:15:11,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-10-11 03:15:11,624 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:15:11,624 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:15:11,624 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-11 03:15:11,624 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:15:11,625 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:15:11,625 INFO L85 PathProgramCache]: Analyzing trace with hash 2016409546, now seen corresponding path program 1 times [2024-10-11 03:15:11,625 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:15:11,625 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [898062165] [2024-10-11 03:15:11,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:15:11,626 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:15:11,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:15:11,707 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 03:15:11,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:15:11,882 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-11 03:15:11,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:15:11,941 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-10-11 03:15:11,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:15:11,951 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-10-11 03:15:11,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:15:11,956 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-10-11 03:15:11,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:15:11,958 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:15:11,958 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:15:11,958 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [898062165] [2024-10-11 03:15:11,960 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [898062165] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:15:11,960 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:15:11,960 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-11 03:15:11,961 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [233435231] [2024-10-11 03:15:11,961 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:15:11,961 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 03:15:11,961 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:15:11,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 03:15:11,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-11 03:15:11,962 INFO L87 Difference]: Start difference. First operand 39460 states and 64669 transitions. Second operand has 7 states, 7 states have (on average 20.0) internal successors, (140), 5 states have internal predecessors, (140), 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) [2024-10-11 03:15:21,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:15:21,621 INFO L93 Difference]: Finished difference Result 154381 states and 256164 transitions. [2024-10-11 03:15:21,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-11 03:15:21,622 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.0) internal successors, (140), 5 states have internal predecessors, (140), 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 151 [2024-10-11 03:15:21,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:15:22,150 INFO L225 Difference]: With dead ends: 154381 [2024-10-11 03:15:22,150 INFO L226 Difference]: Without dead ends: 114938 [2024-10-11 03:15:22,281 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-10-11 03:15:22,282 INFO L432 NwaCegarLoop]: 450 mSDtfsCounter, 1665 mSDsluCounter, 1503 mSDsCounter, 0 mSdLazyCounter, 3217 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1695 SdHoareTripleChecker+Valid, 1953 SdHoareTripleChecker+Invalid, 3285 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 3217 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-10-11 03:15:22,282 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1695 Valid, 1953 Invalid, 3285 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 3217 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-10-11 03:15:22,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114938 states. [2024-10-11 03:15:28,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114938 to 78726. [2024-10-11 03:15:28,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78726 states, 72164 states have (on average 1.5919572085804556) internal successors, (114882), 72422 states have internal predecessors, (114882), 4763 states have call successors, (4763), 1543 states have call predecessors, (4763), 1798 states have return successors, (11578), 5016 states have call predecessors, (11578), 4761 states have call successors, (11578)