./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem17_label50.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3289d67d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/eca-rers2012/Problem17_label50.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 451c7dc1e9ccbf0e1b2bfff20c93c74c6a2c224dafb02ba3904b999265578105 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 04:20:17,707 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 04:20:17,768 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-16 04:20:17,773 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 04:20:17,775 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 04:20:17,801 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 04:20:17,801 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 04:20:17,802 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 04:20:17,802 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-16 04:20:17,804 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-16 04:20:17,804 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 04:20:17,805 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 04:20:17,805 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 04:20:17,805 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 04:20:17,806 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 04:20:17,807 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 04:20:17,807 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 04:20:17,807 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-16 04:20:17,808 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 04:20:17,808 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-16 04:20:17,808 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 04:20:17,811 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 04:20:17,811 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 04:20:17,812 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 04:20:17,812 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 04:20:17,812 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-16 04:20:17,812 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 04:20:17,812 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 04:20:17,812 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 04:20:17,813 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 04:20:17,813 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-16 04:20:17,813 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 04:20:17,813 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 04:20:17,813 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 04:20:17,813 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 04:20:17,814 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 04:20:17,814 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 04:20:17,814 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 04:20:17,814 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 04:20:17,814 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 04:20:17,814 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 04:20:17,815 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 04:20:17,816 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 451c7dc1e9ccbf0e1b2bfff20c93c74c6a2c224dafb02ba3904b999265578105 [2024-11-16 04:20:18,072 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 04:20:18,091 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 04:20:18,093 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 04:20:18,094 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 04:20:18,095 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 04:20:18,096 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem17_label50.c [2024-11-16 04:20:19,376 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 04:20:19,707 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 04:20:19,708 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem17_label50.c [2024-11-16 04:20:19,729 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/09b83def0/d18f7b428b0847e8ab29f40494a3f143/FLAG951c6a79a [2024-11-16 04:20:19,742 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/09b83def0/d18f7b428b0847e8ab29f40494a3f143 [2024-11-16 04:20:19,745 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 04:20:19,746 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 04:20:19,747 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 04:20:19,748 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 04:20:19,752 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 04:20:19,752 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 04:20:19" (1/1) ... [2024-11-16 04:20:19,753 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7296819d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:20:19, skipping insertion in model container [2024-11-16 04:20:19,753 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 04:20:19" (1/1) ... [2024-11-16 04:20:19,815 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 04:20:19,991 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem17_label50.c[1517,1530] [2024-11-16 04:20:20,466 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 04:20:20,478 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 04:20:20,495 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem17_label50.c[1517,1530] [2024-11-16 04:20:20,755 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 04:20:20,772 INFO L204 MainTranslator]: Completed translation [2024-11-16 04:20:20,772 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:20:20 WrapperNode [2024-11-16 04:20:20,772 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 04:20:20,773 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 04:20:20,773 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 04:20:20,774 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 04:20:20,779 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:20:20" (1/1) ... [2024-11-16 04:20:20,809 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:20:20" (1/1) ... [2024-11-16 04:20:21,041 INFO L138 Inliner]: procedures = 15, calls = 9, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 2612 [2024-11-16 04:20:21,042 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 04:20:21,042 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 04:20:21,042 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 04:20:21,042 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 04:20:21,051 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:20:20" (1/1) ... [2024-11-16 04:20:21,051 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:20:20" (1/1) ... [2024-11-16 04:20:21,096 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:20:20" (1/1) ... [2024-11-16 04:20:21,215 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]. [2024-11-16 04:20:21,216 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:20:20" (1/1) ... [2024-11-16 04:20:21,216 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:20:20" (1/1) ... [2024-11-16 04:20:21,329 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:20:20" (1/1) ... [2024-11-16 04:20:21,346 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:20:20" (1/1) ... [2024-11-16 04:20:21,361 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:20:20" (1/1) ... [2024-11-16 04:20:21,372 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:20:20" (1/1) ... [2024-11-16 04:20:21,401 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 04:20:21,403 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 04:20:21,403 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 04:20:21,404 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 04:20:21,404 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:20:20" (1/1) ... [2024-11-16 04:20:21,410 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 04:20:21,420 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 04:20:21,437 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-16 04:20:21,439 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-16 04:20:21,477 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 04:20:21,477 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-16 04:20:21,477 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 04:20:21,477 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 04:20:21,534 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 04:20:21,536 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 04:20:24,084 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L1653: havoc calculate_output_#t~ret7#1; [2024-11-16 04:20:24,180 INFO L? ?]: Removed 372 outVars from TransFormulas that were not future-live. [2024-11-16 04:20:24,181 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 04:20:24,205 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 04:20:24,206 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 04:20:24,206 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 04:20:24 BoogieIcfgContainer [2024-11-16 04:20:24,206 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 04:20:24,207 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 04:20:24,207 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 04:20:24,210 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 04:20:24,210 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 04:20:19" (1/3) ... [2024-11-16 04:20:24,211 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c29d9ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 04:20:24, skipping insertion in model container [2024-11-16 04:20:24,211 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:20:20" (2/3) ... [2024-11-16 04:20:24,211 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c29d9ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 04:20:24, skipping insertion in model container [2024-11-16 04:20:24,211 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 04:20:24" (3/3) ... [2024-11-16 04:20:24,212 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem17_label50.c [2024-11-16 04:20:24,225 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 04:20:24,225 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-16 04:20:24,290 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 04:20:24,297 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;@17b0ba74, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 04:20:24,297 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-16 04:20:24,304 INFO L276 IsEmpty]: Start isEmpty. Operand has 593 states, 591 states have (on average 1.8020304568527918) internal successors, (1065), 592 states have internal predecessors, (1065), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:20:24,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-16 04:20:24,310 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:20:24,311 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:20:24,311 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:20:24,315 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:20:24,316 INFO L85 PathProgramCache]: Analyzing trace with hash -1104742932, now seen corresponding path program 1 times [2024-11-16 04:20:24,326 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:20:24,326 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [580309666] [2024-11-16 04:20:24,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:20:24,327 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:20:24,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:20:24,515 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 04:20:24,516 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:20:24,516 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [580309666] [2024-11-16 04:20:24,517 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [580309666] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:20:24,517 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:20:24,517 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 04:20:24,518 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1896104825] [2024-11-16 04:20:24,519 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:20:24,522 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:20:24,523 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:20:24,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:20:24,543 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:20:24,545 INFO L87 Difference]: Start difference. First operand has 593 states, 591 states have (on average 1.8020304568527918) internal successors, (1065), 592 states have internal predecessors, (1065), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:20:26,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:20:26,597 INFO L93 Difference]: Finished difference Result 1650 states and 3035 transitions. [2024-11-16 04:20:26,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:20:26,599 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2024-11-16 04:20:26,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:20:26,612 INFO L225 Difference]: With dead ends: 1650 [2024-11-16 04:20:26,613 INFO L226 Difference]: Without dead ends: 980 [2024-11-16 04:20:26,616 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:20:26,619 INFO L432 NwaCegarLoop]: 427 mSDtfsCounter, 479 mSDsluCounter, 80 mSDsCounter, 0 mSdLazyCounter, 1470 mSolverCounterSat, 332 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 479 SdHoareTripleChecker+Valid, 507 SdHoareTripleChecker+Invalid, 1802 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 332 IncrementalHoareTripleChecker+Valid, 1470 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-16 04:20:26,621 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [479 Valid, 507 Invalid, 1802 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [332 Valid, 1470 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-16 04:20:26,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 980 states. [2024-11-16 04:20:26,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 980 to 974. [2024-11-16 04:20:26,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 974 states, 973 states have (on average 1.551901336073998) internal successors, (1510), 973 states have internal predecessors, (1510), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:20:26,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 974 states to 974 states and 1510 transitions. [2024-11-16 04:20:26,689 INFO L78 Accepts]: Start accepts. Automaton has 974 states and 1510 transitions. Word has length 11 [2024-11-16 04:20:26,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:20:26,690 INFO L471 AbstractCegarLoop]: Abstraction has 974 states and 1510 transitions. [2024-11-16 04:20:26,690 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:20:26,690 INFO L276 IsEmpty]: Start isEmpty. Operand 974 states and 1510 transitions. [2024-11-16 04:20:26,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-16 04:20:26,692 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:20:26,692 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:20:26,692 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 04:20:26,693 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:20:26,693 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:20:26,693 INFO L85 PathProgramCache]: Analyzing trace with hash -1000763104, now seen corresponding path program 1 times [2024-11-16 04:20:26,693 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:20:26,693 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [824733825] [2024-11-16 04:20:26,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:20:26,694 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:20:26,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:20:26,944 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 04:20:26,944 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:20:26,945 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [824733825] [2024-11-16 04:20:26,945 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [824733825] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:20:26,946 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:20:26,946 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 04:20:26,946 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [20141164] [2024-11-16 04:20:26,947 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:20:26,948 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:20:26,949 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:20:26,950 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:20:26,950 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:20:26,950 INFO L87 Difference]: Start difference. First operand 974 states and 1510 transitions. Second operand has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 2 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:20:28,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:20:28,808 INFO L93 Difference]: Finished difference Result 2824 states and 4391 transitions. [2024-11-16 04:20:28,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:20:28,809 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 2 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 79 [2024-11-16 04:20:28,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:20:28,814 INFO L225 Difference]: With dead ends: 2824 [2024-11-16 04:20:28,815 INFO L226 Difference]: Without dead ends: 1852 [2024-11-16 04:20:28,818 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:20:28,819 INFO L432 NwaCegarLoop]: 511 mSDtfsCounter, 408 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 1382 mSolverCounterSat, 324 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 408 SdHoareTripleChecker+Valid, 586 SdHoareTripleChecker+Invalid, 1706 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 324 IncrementalHoareTripleChecker+Valid, 1382 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-16 04:20:28,819 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [408 Valid, 586 Invalid, 1706 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [324 Valid, 1382 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-16 04:20:28,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1852 states. [2024-11-16 04:20:28,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1852 to 1846. [2024-11-16 04:20:28,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1846 states, 1845 states have (on average 1.3495934959349594) internal successors, (2490), 1845 states have internal predecessors, (2490), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:20:28,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1846 states to 1846 states and 2490 transitions. [2024-11-16 04:20:28,854 INFO L78 Accepts]: Start accepts. Automaton has 1846 states and 2490 transitions. Word has length 79 [2024-11-16 04:20:28,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:20:28,855 INFO L471 AbstractCegarLoop]: Abstraction has 1846 states and 2490 transitions. [2024-11-16 04:20:28,855 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 2 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:20:28,855 INFO L276 IsEmpty]: Start isEmpty. Operand 1846 states and 2490 transitions. [2024-11-16 04:20:28,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-11-16 04:20:28,856 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:20:28,856 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:20:28,857 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-16 04:20:28,857 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:20:28,857 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:20:28,857 INFO L85 PathProgramCache]: Analyzing trace with hash 818718222, now seen corresponding path program 1 times [2024-11-16 04:20:28,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:20:28,858 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1519558665] [2024-11-16 04:20:28,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:20:28,858 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:20:28,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:20:29,058 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 04:20:29,058 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:20:29,059 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1519558665] [2024-11-16 04:20:29,059 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1519558665] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:20:29,059 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:20:29,059 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 04:20:29,059 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [868559314] [2024-11-16 04:20:29,059 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:20:29,060 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 04:20:29,060 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:20:29,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 04:20:29,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-16 04:20:29,061 INFO L87 Difference]: Start difference. First operand 1846 states and 2490 transitions. Second operand has 4 states, 4 states have (on average 20.5) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:20:31,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:20:31,919 INFO L93 Difference]: Finished difference Result 6782 states and 9279 transitions. [2024-11-16 04:20:31,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 04:20:31,920 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.5) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2024-11-16 04:20:31,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:20:31,933 INFO L225 Difference]: With dead ends: 6782 [2024-11-16 04:20:31,933 INFO L226 Difference]: Without dead ends: 4938 [2024-11-16 04:20:31,935 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-16 04:20:31,936 INFO L432 NwaCegarLoop]: 204 mSDtfsCounter, 957 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 2514 mSolverCounterSat, 775 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 957 SdHoareTripleChecker+Valid, 292 SdHoareTripleChecker+Invalid, 3289 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 775 IncrementalHoareTripleChecker+Valid, 2514 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2024-11-16 04:20:31,937 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [957 Valid, 292 Invalid, 3289 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [775 Valid, 2514 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2024-11-16 04:20:31,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4938 states. [2024-11-16 04:20:31,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4938 to 4887. [2024-11-16 04:20:31,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4887 states, 4886 states have (on average 1.2859189521080638) internal successors, (6283), 4886 states have internal predecessors, (6283), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:20:32,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4887 states to 4887 states and 6283 transitions. [2024-11-16 04:20:32,000 INFO L78 Accepts]: Start accepts. Automaton has 4887 states and 6283 transitions. Word has length 82 [2024-11-16 04:20:32,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:20:32,002 INFO L471 AbstractCegarLoop]: Abstraction has 4887 states and 6283 transitions. [2024-11-16 04:20:32,004 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.5) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:20:32,004 INFO L276 IsEmpty]: Start isEmpty. Operand 4887 states and 6283 transitions. [2024-11-16 04:20:32,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2024-11-16 04:20:32,012 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:20:32,012 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:20:32,012 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-16 04:20:32,013 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:20:32,013 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:20:32,013 INFO L85 PathProgramCache]: Analyzing trace with hash -1818580916, now seen corresponding path program 1 times [2024-11-16 04:20:32,013 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:20:32,013 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [915405922] [2024-11-16 04:20:32,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:20:32,013 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:20:32,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:20:32,202 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-16 04:20:32,204 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:20:32,204 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [915405922] [2024-11-16 04:20:32,205 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [915405922] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:20:32,205 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:20:32,205 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 04:20:32,205 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1339250667] [2024-11-16 04:20:32,205 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:20:32,205 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:20:32,206 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:20:32,207 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:20:32,207 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:20:32,207 INFO L87 Difference]: Start difference. First operand 4887 states and 6283 transitions. Second operand has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 2 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:20:33,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:20:33,612 INFO L93 Difference]: Finished difference Result 14471 states and 18579 transitions. [2024-11-16 04:20:33,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:20:33,612 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 2 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 154 [2024-11-16 04:20:33,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:20:33,631 INFO L225 Difference]: With dead ends: 14471 [2024-11-16 04:20:33,631 INFO L226 Difference]: Without dead ends: 8297 [2024-11-16 04:20:33,639 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:20:33,640 INFO L432 NwaCegarLoop]: 516 mSDtfsCounter, 387 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 1081 mSolverCounterSat, 548 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 387 SdHoareTripleChecker+Valid, 592 SdHoareTripleChecker+Invalid, 1629 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 548 IncrementalHoareTripleChecker+Valid, 1081 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-16 04:20:33,641 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [387 Valid, 592 Invalid, 1629 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [548 Valid, 1081 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-16 04:20:33,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8297 states. [2024-11-16 04:20:33,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8297 to 6159. [2024-11-16 04:20:33,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6159 states, 6158 states have (on average 1.1904839233517375) internal successors, (7331), 6158 states have internal predecessors, (7331), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:20:33,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6159 states to 6159 states and 7331 transitions. [2024-11-16 04:20:33,729 INFO L78 Accepts]: Start accepts. Automaton has 6159 states and 7331 transitions. Word has length 154 [2024-11-16 04:20:33,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:20:33,730 INFO L471 AbstractCegarLoop]: Abstraction has 6159 states and 7331 transitions. [2024-11-16 04:20:33,730 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 2 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:20:33,730 INFO L276 IsEmpty]: Start isEmpty. Operand 6159 states and 7331 transitions. [2024-11-16 04:20:33,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2024-11-16 04:20:33,733 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:20:33,734 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:20:33,734 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-16 04:20:33,734 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:20:33,735 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:20:33,735 INFO L85 PathProgramCache]: Analyzing trace with hash -2061392536, now seen corresponding path program 1 times [2024-11-16 04:20:33,735 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:20:33,735 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1283145520] [2024-11-16 04:20:33,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:20:33,735 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:20:33,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:20:33,914 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2024-11-16 04:20:33,915 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:20:33,915 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1283145520] [2024-11-16 04:20:33,915 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1283145520] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:20:33,916 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:20:33,916 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 04:20:33,916 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1796923586] [2024-11-16 04:20:33,916 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:20:33,918 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:20:33,918 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:20:33,918 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:20:33,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:20:33,919 INFO L87 Difference]: Start difference. First operand 6159 states and 7331 transitions. Second operand has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:20:35,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:20:35,480 INFO L93 Difference]: Finished difference Result 14937 states and 17856 transitions. [2024-11-16 04:20:35,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:20:35,484 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 167 [2024-11-16 04:20:35,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:20:35,503 INFO L225 Difference]: With dead ends: 14937 [2024-11-16 04:20:35,504 INFO L226 Difference]: Without dead ends: 8780 [2024-11-16 04:20:35,509 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:20:35,510 INFO L432 NwaCegarLoop]: 140 mSDtfsCounter, 543 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 1408 mSolverCounterSat, 414 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 543 SdHoareTripleChecker+Valid, 191 SdHoareTripleChecker+Invalid, 1822 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 414 IncrementalHoareTripleChecker+Valid, 1408 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-16 04:20:35,510 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [543 Valid, 191 Invalid, 1822 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [414 Valid, 1408 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-16 04:20:35,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8780 states. [2024-11-16 04:20:35,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8780 to 8326. [2024-11-16 04:20:35,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8326 states, 8325 states have (on average 1.2012012012012012) internal successors, (10000), 8325 states have internal predecessors, (10000), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:20:35,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8326 states to 8326 states and 10000 transitions. [2024-11-16 04:20:35,620 INFO L78 Accepts]: Start accepts. Automaton has 8326 states and 10000 transitions. Word has length 167 [2024-11-16 04:20:35,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:20:35,621 INFO L471 AbstractCegarLoop]: Abstraction has 8326 states and 10000 transitions. [2024-11-16 04:20:35,621 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:20:35,621 INFO L276 IsEmpty]: Start isEmpty. Operand 8326 states and 10000 transitions. [2024-11-16 04:20:35,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2024-11-16 04:20:35,624 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:20:35,624 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:20:35,625 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-16 04:20:35,625 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:20:35,625 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:20:35,625 INFO L85 PathProgramCache]: Analyzing trace with hash -1674952742, now seen corresponding path program 1 times [2024-11-16 04:20:35,625 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:20:35,625 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [141186321] [2024-11-16 04:20:35,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:20:35,625 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:20:35,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:20:35,774 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 81 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-16 04:20:35,774 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:20:35,775 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [141186321] [2024-11-16 04:20:35,775 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [141186321] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:20:35,775 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:20:35,775 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 04:20:35,775 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1243613033] [2024-11-16 04:20:35,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:20:35,776 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:20:35,777 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:20:35,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:20:35,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:20:35,777 INFO L87 Difference]: Start difference. First operand 8326 states and 10000 transitions. Second operand has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 3 states have internal predecessors, (163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:20:37,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:20:37,063 INFO L93 Difference]: Finished difference Result 20915 states and 25664 transitions. [2024-11-16 04:20:37,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:20:37,065 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 3 states have internal predecessors, (163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 170 [2024-11-16 04:20:37,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:20:37,096 INFO L225 Difference]: With dead ends: 20915 [2024-11-16 04:20:37,097 INFO L226 Difference]: Without dead ends: 12591 [2024-11-16 04:20:37,109 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:20:37,110 INFO L432 NwaCegarLoop]: 744 mSDtfsCounter, 490 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 1226 mSolverCounterSat, 321 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 490 SdHoareTripleChecker+Valid, 803 SdHoareTripleChecker+Invalid, 1547 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 321 IncrementalHoareTripleChecker+Valid, 1226 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-16 04:20:37,112 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [490 Valid, 803 Invalid, 1547 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [321 Valid, 1226 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-16 04:20:37,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12591 states. [2024-11-16 04:20:37,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12591 to 12591. [2024-11-16 04:20:37,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12591 states, 12590 states have (on average 1.1885623510722796) internal successors, (14964), 12590 states have internal predecessors, (14964), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:20:37,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12591 states to 12591 states and 14964 transitions. [2024-11-16 04:20:37,345 INFO L78 Accepts]: Start accepts. Automaton has 12591 states and 14964 transitions. Word has length 170 [2024-11-16 04:20:37,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:20:37,346 INFO L471 AbstractCegarLoop]: Abstraction has 12591 states and 14964 transitions. [2024-11-16 04:20:37,346 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 3 states have internal predecessors, (163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:20:37,346 INFO L276 IsEmpty]: Start isEmpty. Operand 12591 states and 14964 transitions. [2024-11-16 04:20:37,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 252 [2024-11-16 04:20:37,350 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:20:37,350 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:20:37,350 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-16 04:20:37,350 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:20:37,350 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:20:37,351 INFO L85 PathProgramCache]: Analyzing trace with hash -935019218, now seen corresponding path program 1 times [2024-11-16 04:20:37,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:20:37,351 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1113895839] [2024-11-16 04:20:37,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:20:37,351 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:20:37,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:20:37,531 INFO L134 CoverageAnalysis]: Checked inductivity of 250 backedges. 168 proven. 0 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2024-11-16 04:20:37,531 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:20:37,532 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1113895839] [2024-11-16 04:20:37,532 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1113895839] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:20:37,532 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:20:37,532 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 04:20:37,532 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1445225396] [2024-11-16 04:20:37,532 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:20:37,533 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:20:37,533 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:20:37,533 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:20:37,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:20:37,534 INFO L87 Difference]: Start difference. First operand 12591 states and 14964 transitions. Second operand has 3 states, 3 states have (on average 56.666666666666664) internal successors, (170), 3 states have internal predecessors, (170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:20:39,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:20:39,137 INFO L93 Difference]: Finished difference Result 30279 states and 36513 transitions. [2024-11-16 04:20:39,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:20:39,138 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 56.666666666666664) internal successors, (170), 3 states have internal predecessors, (170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 251 [2024-11-16 04:20:39,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:20:39,160 INFO L225 Difference]: With dead ends: 30279 [2024-11-16 04:20:39,160 INFO L226 Difference]: Without dead ends: 15985 [2024-11-16 04:20:39,169 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:20:39,170 INFO L432 NwaCegarLoop]: 832 mSDtfsCounter, 388 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 1240 mSolverCounterSat, 331 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 388 SdHoareTripleChecker+Valid, 905 SdHoareTripleChecker+Invalid, 1571 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 331 IncrementalHoareTripleChecker+Valid, 1240 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-16 04:20:39,170 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [388 Valid, 905 Invalid, 1571 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [331 Valid, 1240 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-16 04:20:39,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15985 states. [2024-11-16 04:20:39,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15985 to 15985. [2024-11-16 04:20:39,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15985 states, 15984 states have (on average 1.1355105105105106) internal successors, (18150), 15984 states have internal predecessors, (18150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:20:39,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15985 states to 15985 states and 18150 transitions. [2024-11-16 04:20:39,381 INFO L78 Accepts]: Start accepts. Automaton has 15985 states and 18150 transitions. Word has length 251 [2024-11-16 04:20:39,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:20:39,382 INFO L471 AbstractCegarLoop]: Abstraction has 15985 states and 18150 transitions. [2024-11-16 04:20:39,382 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 56.666666666666664) internal successors, (170), 3 states have internal predecessors, (170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:20:39,383 INFO L276 IsEmpty]: Start isEmpty. Operand 15985 states and 18150 transitions. [2024-11-16 04:20:39,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 271 [2024-11-16 04:20:39,385 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:20:39,385 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:20:39,385 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-16 04:20:39,386 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:20:39,386 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:20:39,386 INFO L85 PathProgramCache]: Analyzing trace with hash 1712976927, now seen corresponding path program 1 times [2024-11-16 04:20:39,386 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:20:39,387 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1763292528] [2024-11-16 04:20:39,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:20:39,387 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:20:39,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:20:39,638 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 98 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 04:20:39,638 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:20:39,638 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1763292528] [2024-11-16 04:20:39,638 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1763292528] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:20:39,638 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:20:39,639 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 04:20:39,639 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1839952000] [2024-11-16 04:20:39,639 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:20:39,639 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:20:39,639 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:20:39,640 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:20:39,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:20:39,640 INFO L87 Difference]: Start difference. First operand 15985 states and 18150 transitions. Second operand has 3 states, 3 states have (on average 90.0) internal successors, (270), 3 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:20:41,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:20:41,215 INFO L93 Difference]: Finished difference Result 40108 states and 45913 transitions. [2024-11-16 04:20:41,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:20:41,216 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 90.0) internal successors, (270), 3 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 270 [2024-11-16 04:20:41,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:20:41,248 INFO L225 Difference]: With dead ends: 40108 [2024-11-16 04:20:41,249 INFO L226 Difference]: Without dead ends: 23271 [2024-11-16 04:20:41,260 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:20:41,262 INFO L432 NwaCegarLoop]: 765 mSDtfsCounter, 304 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 1248 mSolverCounterSat, 250 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 304 SdHoareTripleChecker+Valid, 841 SdHoareTripleChecker+Invalid, 1498 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 250 IncrementalHoareTripleChecker+Valid, 1248 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-16 04:20:41,262 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [304 Valid, 841 Invalid, 1498 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [250 Valid, 1248 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-16 04:20:41,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23271 states. [2024-11-16 04:20:41,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23271 to 23260. [2024-11-16 04:20:41,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23260 states, 23259 states have (on average 1.1143213379766972) internal successors, (25918), 23259 states have internal predecessors, (25918), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:20:41,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23260 states to 23260 states and 25918 transitions. [2024-11-16 04:20:41,459 INFO L78 Accepts]: Start accepts. Automaton has 23260 states and 25918 transitions. Word has length 270 [2024-11-16 04:20:41,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:20:41,459 INFO L471 AbstractCegarLoop]: Abstraction has 23260 states and 25918 transitions. [2024-11-16 04:20:41,460 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 90.0) internal successors, (270), 3 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:20:41,460 INFO L276 IsEmpty]: Start isEmpty. Operand 23260 states and 25918 transitions. [2024-11-16 04:20:41,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 327 [2024-11-16 04:20:41,464 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:20:41,464 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:20:41,464 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-16 04:20:41,464 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:20:41,464 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:20:41,465 INFO L85 PathProgramCache]: Analyzing trace with hash -1272233141, now seen corresponding path program 1 times [2024-11-16 04:20:41,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:20:41,465 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [369146325] [2024-11-16 04:20:41,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:20:41,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:20:41,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:20:41,682 INFO L134 CoverageAnalysis]: Checked inductivity of 295 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 272 trivial. 0 not checked. [2024-11-16 04:20:41,683 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:20:41,683 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [369146325] [2024-11-16 04:20:41,683 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [369146325] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:20:41,683 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:20:41,683 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 04:20:41,683 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1825987545] [2024-11-16 04:20:41,683 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:20:41,684 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:20:41,684 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:20:41,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:20:41,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:20:41,685 INFO L87 Difference]: Start difference. First operand 23260 states and 25918 transitions. Second operand has 3 states, 3 states have (on average 46.333333333333336) internal successors, (139), 3 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:20:43,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:20:43,237 INFO L93 Difference]: Finished difference Result 52088 states and 58455 transitions. [2024-11-16 04:20:43,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:20:43,240 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 46.333333333333336) internal successors, (139), 3 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 326 [2024-11-16 04:20:43,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:20:43,270 INFO L225 Difference]: With dead ends: 52088 [2024-11-16 04:20:43,271 INFO L226 Difference]: Without dead ends: 27118 [2024-11-16 04:20:43,288 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:20:43,289 INFO L432 NwaCegarLoop]: 792 mSDtfsCounter, 470 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 1343 mSolverCounterSat, 189 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 470 SdHoareTripleChecker+Valid, 864 SdHoareTripleChecker+Invalid, 1532 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 189 IncrementalHoareTripleChecker+Valid, 1343 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-16 04:20:43,290 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [470 Valid, 864 Invalid, 1532 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [189 Valid, 1343 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-16 04:20:43,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27118 states. [2024-11-16 04:20:43,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27118 to 27111. [2024-11-16 04:20:43,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27111 states, 27110 states have (on average 1.115455551457027) internal successors, (30240), 27110 states have internal predecessors, (30240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:20:43,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27111 states to 27111 states and 30240 transitions. [2024-11-16 04:20:43,536 INFO L78 Accepts]: Start accepts. Automaton has 27111 states and 30240 transitions. Word has length 326 [2024-11-16 04:20:43,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:20:43,537 INFO L471 AbstractCegarLoop]: Abstraction has 27111 states and 30240 transitions. [2024-11-16 04:20:43,537 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.333333333333336) internal successors, (139), 3 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:20:43,538 INFO L276 IsEmpty]: Start isEmpty. Operand 27111 states and 30240 transitions. [2024-11-16 04:20:43,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 377 [2024-11-16 04:20:43,548 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:20:43,549 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:20:43,549 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-16 04:20:43,549 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:20:43,549 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:20:43,549 INFO L85 PathProgramCache]: Analyzing trace with hash 1659272709, now seen corresponding path program 1 times [2024-11-16 04:20:43,550 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:20:43,550 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [645499340] [2024-11-16 04:20:43,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:20:43,550 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:20:43,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:20:43,867 INFO L134 CoverageAnalysis]: Checked inductivity of 295 backedges. 212 proven. 0 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2024-11-16 04:20:43,868 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:20:43,868 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [645499340] [2024-11-16 04:20:43,868 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [645499340] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:20:43,868 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:20:43,868 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 04:20:43,868 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1993531491] [2024-11-16 04:20:43,869 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:20:43,869 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:20:43,869 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:20:43,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:20:43,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:20:43,870 INFO L87 Difference]: Start difference. First operand 27111 states and 30240 transitions. Second operand has 3 states, 3 states have (on average 98.0) internal successors, (294), 3 states have internal predecessors, (294), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:20:45,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:20:45,450 INFO L93 Difference]: Finished difference Result 65367 states and 73194 transitions. [2024-11-16 04:20:45,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:20:45,451 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 98.0) internal successors, (294), 3 states have internal predecessors, (294), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 376 [2024-11-16 04:20:45,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:20:45,499 INFO L225 Difference]: With dead ends: 65367 [2024-11-16 04:20:45,499 INFO L226 Difference]: Without dead ends: 38258 [2024-11-16 04:20:45,518 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:20:45,519 INFO L432 NwaCegarLoop]: 662 mSDtfsCounter, 353 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 1376 mSolverCounterSat, 241 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 353 SdHoareTripleChecker+Valid, 712 SdHoareTripleChecker+Invalid, 1617 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 241 IncrementalHoareTripleChecker+Valid, 1376 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-16 04:20:45,519 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [353 Valid, 712 Invalid, 1617 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [241 Valid, 1376 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-16 04:20:45,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38258 states. [2024-11-16 04:20:45,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38258 to 36084. [2024-11-16 04:20:46,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36084 states, 36083 states have (on average 1.1234930576725881) internal successors, (40539), 36083 states have internal predecessors, (40539), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:20:46,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36084 states to 36084 states and 40539 transitions. [2024-11-16 04:20:46,051 INFO L78 Accepts]: Start accepts. Automaton has 36084 states and 40539 transitions. Word has length 376 [2024-11-16 04:20:46,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:20:46,052 INFO L471 AbstractCegarLoop]: Abstraction has 36084 states and 40539 transitions. [2024-11-16 04:20:46,052 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 98.0) internal successors, (294), 3 states have internal predecessors, (294), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:20:46,052 INFO L276 IsEmpty]: Start isEmpty. Operand 36084 states and 40539 transitions. [2024-11-16 04:20:46,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 378 [2024-11-16 04:20:46,059 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:20:46,059 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:20:46,059 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-16 04:20:46,060 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:20:46,060 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:20:46,060 INFO L85 PathProgramCache]: Analyzing trace with hash -1699709855, now seen corresponding path program 1 times [2024-11-16 04:20:46,060 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:20:46,060 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1283791386] [2024-11-16 04:20:46,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:20:46,061 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:20:46,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:20:46,297 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 232 trivial. 0 not checked. [2024-11-16 04:20:46,298 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:20:46,298 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1283791386] [2024-11-16 04:20:46,298 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1283791386] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:20:46,298 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:20:46,298 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 04:20:46,298 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [781429903] [2024-11-16 04:20:46,298 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:20:46,299 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:20:46,299 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:20:46,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:20:46,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:20:46,299 INFO L87 Difference]: Start difference. First operand 36084 states and 40539 transitions. Second operand has 3 states, 3 states have (on average 73.66666666666667) internal successors, (221), 3 states have internal predecessors, (221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:20:47,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:20:47,839 INFO L93 Difference]: Finished difference Result 81170 states and 91354 transitions. [2024-11-16 04:20:47,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:20:47,840 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 73.66666666666667) internal successors, (221), 3 states have internal predecessors, (221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 377 [2024-11-16 04:20:47,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:20:47,885 INFO L225 Difference]: With dead ends: 81170 [2024-11-16 04:20:47,885 INFO L226 Difference]: Without dead ends: 44662 [2024-11-16 04:20:47,908 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:20:47,909 INFO L432 NwaCegarLoop]: 159 mSDtfsCounter, 524 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 1311 mSolverCounterSat, 357 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 524 SdHoareTripleChecker+Valid, 202 SdHoareTripleChecker+Invalid, 1668 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 357 IncrementalHoareTripleChecker+Valid, 1311 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-16 04:20:47,909 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [524 Valid, 202 Invalid, 1668 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [357 Valid, 1311 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-16 04:20:47,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44662 states. [2024-11-16 04:20:48,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44662 to 35652. [2024-11-16 04:20:48,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35652 states, 35651 states have (on average 1.1240357914224004) internal successors, (40073), 35651 states have internal predecessors, (40073), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:20:48,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35652 states to 35652 states and 40073 transitions. [2024-11-16 04:20:48,269 INFO L78 Accepts]: Start accepts. Automaton has 35652 states and 40073 transitions. Word has length 377 [2024-11-16 04:20:48,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:20:48,270 INFO L471 AbstractCegarLoop]: Abstraction has 35652 states and 40073 transitions. [2024-11-16 04:20:48,270 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 73.66666666666667) internal successors, (221), 3 states have internal predecessors, (221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:20:48,270 INFO L276 IsEmpty]: Start isEmpty. Operand 35652 states and 40073 transitions. [2024-11-16 04:20:48,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 380 [2024-11-16 04:20:48,275 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:20:48,276 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:20:48,276 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-16 04:20:48,276 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:20:48,276 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:20:48,276 INFO L85 PathProgramCache]: Analyzing trace with hash 586256234, now seen corresponding path program 1 times [2024-11-16 04:20:48,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:20:48,277 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1549346947] [2024-11-16 04:20:48,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:20:48,277 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:20:48,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:20:48,552 INFO L134 CoverageAnalysis]: Checked inductivity of 475 backedges. 393 proven. 0 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2024-11-16 04:20:48,552 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:20:48,552 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1549346947] [2024-11-16 04:20:48,553 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1549346947] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:20:48,553 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:20:48,553 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 04:20:48,553 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1120554753] [2024-11-16 04:20:48,553 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:20:48,553 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:20:48,553 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:20:48,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:20:48,554 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:20:48,554 INFO L87 Difference]: Start difference. First operand 35652 states and 40073 transitions. Second operand has 3 states, 3 states have (on average 99.66666666666667) internal successors, (299), 3 states have internal predecessors, (299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:20:49,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:20:49,979 INFO L93 Difference]: Finished difference Result 77301 states and 86888 transitions. [2024-11-16 04:20:49,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:20:49,980 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 99.66666666666667) internal successors, (299), 3 states have internal predecessors, (299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 379 [2024-11-16 04:20:49,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:20:50,032 INFO L225 Difference]: With dead ends: 77301 [2024-11-16 04:20:50,032 INFO L226 Difference]: Without dead ends: 41651 [2024-11-16 04:20:50,058 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:20:50,059 INFO L432 NwaCegarLoop]: 808 mSDtfsCounter, 330 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 1409 mSolverCounterSat, 135 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 330 SdHoareTripleChecker+Valid, 871 SdHoareTripleChecker+Invalid, 1544 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 135 IncrementalHoareTripleChecker+Valid, 1409 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-16 04:20:50,059 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [330 Valid, 871 Invalid, 1544 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [135 Valid, 1409 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-16 04:20:50,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41651 states. [2024-11-16 04:20:50,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41651 to 40346. [2024-11-16 04:20:50,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40346 states, 40345 states have (on average 1.120213161482216) internal successors, (45195), 40345 states have internal predecessors, (45195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:20:50,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40346 states to 40346 states and 45195 transitions. [2024-11-16 04:20:50,505 INFO L78 Accepts]: Start accepts. Automaton has 40346 states and 45195 transitions. Word has length 379 [2024-11-16 04:20:50,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:20:50,505 INFO L471 AbstractCegarLoop]: Abstraction has 40346 states and 45195 transitions. [2024-11-16 04:20:50,506 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 99.66666666666667) internal successors, (299), 3 states have internal predecessors, (299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:20:50,506 INFO L276 IsEmpty]: Start isEmpty. Operand 40346 states and 45195 transitions. [2024-11-16 04:20:50,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 411 [2024-11-16 04:20:50,512 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:20:50,512 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:20:50,513 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-16 04:20:50,513 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:20:50,513 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:20:50,513 INFO L85 PathProgramCache]: Analyzing trace with hash -1900344704, now seen corresponding path program 1 times [2024-11-16 04:20:50,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:20:50,514 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [667752849] [2024-11-16 04:20:50,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:20:50,514 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:20:50,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:20:50,729 INFO L134 CoverageAnalysis]: Checked inductivity of 515 backedges. 424 proven. 0 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2024-11-16 04:20:50,729 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:20:50,729 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [667752849] [2024-11-16 04:20:50,729 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [667752849] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:20:50,729 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:20:50,729 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 04:20:50,730 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [643066120] [2024-11-16 04:20:50,730 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:20:50,730 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:20:50,730 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:20:50,730 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:20:50,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:20:50,731 INFO L87 Difference]: Start difference. First operand 40346 states and 45195 transitions. Second operand has 3 states, 3 states have (on average 107.0) internal successors, (321), 3 states have internal predecessors, (321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:20:52,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:20:52,355 INFO L93 Difference]: Finished difference Result 93531 states and 105771 transitions. [2024-11-16 04:20:52,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:20:52,356 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 107.0) internal successors, (321), 3 states have internal predecessors, (321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 410 [2024-11-16 04:20:52,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:20:52,416 INFO L225 Difference]: With dead ends: 93531 [2024-11-16 04:20:52,417 INFO L226 Difference]: Without dead ends: 51030 [2024-11-16 04:20:52,453 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:20:52,454 INFO L432 NwaCegarLoop]: 637 mSDtfsCounter, 403 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 1281 mSolverCounterSat, 281 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 403 SdHoareTripleChecker+Valid, 695 SdHoareTripleChecker+Invalid, 1562 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 281 IncrementalHoareTripleChecker+Valid, 1281 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-16 04:20:52,454 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [403 Valid, 695 Invalid, 1562 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [281 Valid, 1281 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-16 04:20:52,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51030 states. [2024-11-16 04:20:52,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51030 to 51012. [2024-11-16 04:20:52,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51012 states, 51011 states have (on average 1.1215816196506636) internal successors, (57213), 51011 states have internal predecessors, (57213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:20:53,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51012 states to 51012 states and 57213 transitions. [2024-11-16 04:20:53,058 INFO L78 Accepts]: Start accepts. Automaton has 51012 states and 57213 transitions. Word has length 410 [2024-11-16 04:20:53,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:20:53,059 INFO L471 AbstractCegarLoop]: Abstraction has 51012 states and 57213 transitions. [2024-11-16 04:20:53,059 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 107.0) internal successors, (321), 3 states have internal predecessors, (321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:20:53,059 INFO L276 IsEmpty]: Start isEmpty. Operand 51012 states and 57213 transitions. [2024-11-16 04:20:53,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 413 [2024-11-16 04:20:53,068 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:20:53,068 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:20:53,068 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-16 04:20:53,068 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:20:53,068 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:20:53,069 INFO L85 PathProgramCache]: Analyzing trace with hash -625056978, now seen corresponding path program 1 times [2024-11-16 04:20:53,069 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:20:53,069 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1592735963] [2024-11-16 04:20:53,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:20:53,069 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:20:53,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:20:53,347 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2024-11-16 04:20:53,347 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:20:53,348 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1592735963] [2024-11-16 04:20:53,348 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1592735963] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:20:53,348 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:20:53,348 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 04:20:53,348 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [747239482] [2024-11-16 04:20:53,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:20:53,348 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:20:53,348 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:20:53,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:20:53,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:20:53,349 INFO L87 Difference]: Start difference. First operand 51012 states and 57213 transitions. Second operand has 3 states, 3 states have (on average 110.0) internal successors, (330), 3 states have internal predecessors, (330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:20:54,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:20:54,543 INFO L93 Difference]: Finished difference Result 101585 states and 113929 transitions. [2024-11-16 04:20:54,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:20:54,544 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 110.0) internal successors, (330), 3 states have internal predecessors, (330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 412 [2024-11-16 04:20:54,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:20:54,593 INFO L225 Difference]: With dead ends: 101585 [2024-11-16 04:20:54,594 INFO L226 Difference]: Without dead ends: 50573 [2024-11-16 04:20:54,624 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:20:54,624 INFO L432 NwaCegarLoop]: 678 mSDtfsCounter, 497 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 1180 mSolverCounterSat, 140 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 497 SdHoareTripleChecker+Valid, 746 SdHoareTripleChecker+Invalid, 1320 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 140 IncrementalHoareTripleChecker+Valid, 1180 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-16 04:20:54,625 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [497 Valid, 746 Invalid, 1320 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [140 Valid, 1180 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-16 04:20:54,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50573 states. [2024-11-16 04:20:54,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50573 to 50139. [2024-11-16 04:20:54,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50139 states, 50138 states have (on average 1.0882564123020464) internal successors, (54563), 50138 states have internal predecessors, (54563), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:20:55,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50139 states to 50139 states and 54563 transitions. [2024-11-16 04:20:55,029 INFO L78 Accepts]: Start accepts. Automaton has 50139 states and 54563 transitions. Word has length 412 [2024-11-16 04:20:55,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:20:55,030 INFO L471 AbstractCegarLoop]: Abstraction has 50139 states and 54563 transitions. [2024-11-16 04:20:55,030 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 110.0) internal successors, (330), 3 states have internal predecessors, (330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:20:55,030 INFO L276 IsEmpty]: Start isEmpty. Operand 50139 states and 54563 transitions. [2024-11-16 04:20:55,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 420 [2024-11-16 04:20:55,036 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:20:55,036 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:20:55,036 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-16 04:20:55,036 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:20:55,037 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:20:55,037 INFO L85 PathProgramCache]: Analyzing trace with hash -1162278731, now seen corresponding path program 1 times [2024-11-16 04:20:55,037 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:20:55,037 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1653852753] [2024-11-16 04:20:55,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:20:55,037 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:20:55,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:20:55,728 INFO L134 CoverageAnalysis]: Checked inductivity of 338 backedges. 255 proven. 0 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2024-11-16 04:20:55,728 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:20:55,728 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1653852753] [2024-11-16 04:20:55,728 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1653852753] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:20:55,729 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:20:55,729 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 04:20:55,729 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [830799410] [2024-11-16 04:20:55,729 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:20:55,729 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:20:55,729 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:20:55,730 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:20:55,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:20:55,730 INFO L87 Difference]: Start difference. First operand 50139 states and 54563 transitions. Second operand has 3 states, 3 states have (on average 112.33333333333333) internal successors, (337), 3 states have internal predecessors, (337), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:20:57,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:20:57,132 INFO L93 Difference]: Finished difference Result 106692 states and 116367 transitions. [2024-11-16 04:20:57,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:20:57,133 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 112.33333333333333) internal successors, (337), 3 states have internal predecessors, (337), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 419 [2024-11-16 04:20:57,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:20:57,199 INFO L225 Difference]: With dead ends: 106692 [2024-11-16 04:20:57,199 INFO L226 Difference]: Without dead ends: 56555 [2024-11-16 04:20:57,231 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:20:57,232 INFO L432 NwaCegarLoop]: 738 mSDtfsCounter, 293 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 1255 mSolverCounterSat, 121 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 293 SdHoareTripleChecker+Valid, 803 SdHoareTripleChecker+Invalid, 1376 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 121 IncrementalHoareTripleChecker+Valid, 1255 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-16 04:20:57,233 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [293 Valid, 803 Invalid, 1376 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [121 Valid, 1255 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-16 04:20:57,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56555 states. [2024-11-16 04:20:57,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56555 to 52270. [2024-11-16 04:20:57,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52270 states, 52269 states have (on average 1.087011421683981) internal successors, (56817), 52269 states have internal predecessors, (56817), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:20:58,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52270 states to 52270 states and 56817 transitions. [2024-11-16 04:20:58,016 INFO L78 Accepts]: Start accepts. Automaton has 52270 states and 56817 transitions. Word has length 419 [2024-11-16 04:20:58,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:20:58,016 INFO L471 AbstractCegarLoop]: Abstraction has 52270 states and 56817 transitions. [2024-11-16 04:20:58,016 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 112.33333333333333) internal successors, (337), 3 states have internal predecessors, (337), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:20:58,016 INFO L276 IsEmpty]: Start isEmpty. Operand 52270 states and 56817 transitions. [2024-11-16 04:20:58,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 445 [2024-11-16 04:20:58,024 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:20:58,024 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:20:58,024 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-16 04:20:58,025 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:20:58,025 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:20:58,025 INFO L85 PathProgramCache]: Analyzing trace with hash -2074506701, now seen corresponding path program 1 times [2024-11-16 04:20:58,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:20:58,025 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1322730644] [2024-11-16 04:20:58,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:20:58,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:20:58,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:20:58,372 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2024-11-16 04:20:58,373 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:20:58,373 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1322730644] [2024-11-16 04:20:58,374 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1322730644] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:20:58,374 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:20:58,374 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 04:20:58,375 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1342832476] [2024-11-16 04:20:58,375 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:20:58,375 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:20:58,375 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:20:58,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:20:58,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:20:58,376 INFO L87 Difference]: Start difference. First operand 52270 states and 56817 transitions. Second operand has 3 states, 3 states have (on average 120.66666666666667) internal successors, (362), 3 states have internal predecessors, (362), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:21:00,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:21:00,026 INFO L93 Difference]: Finished difference Result 124192 states and 135691 transitions. [2024-11-16 04:21:00,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:21:00,026 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 120.66666666666667) internal successors, (362), 3 states have internal predecessors, (362), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 444 [2024-11-16 04:21:00,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:21:00,113 INFO L225 Difference]: With dead ends: 124192 [2024-11-16 04:21:00,113 INFO L226 Difference]: Without dead ends: 71923 [2024-11-16 04:21:00,129 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:21:00,130 INFO L432 NwaCegarLoop]: 275 mSDtfsCounter, 515 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 1270 mSolverCounterSat, 209 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 515 SdHoareTripleChecker+Valid, 328 SdHoareTripleChecker+Invalid, 1479 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 209 IncrementalHoareTripleChecker+Valid, 1270 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-16 04:21:00,130 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [515 Valid, 328 Invalid, 1479 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [209 Valid, 1270 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-16 04:21:00,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71923 states. [2024-11-16 04:21:00,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71923 to 69758. [2024-11-16 04:21:00,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69758 states, 69757 states have (on average 1.0913313359232766) internal successors, (76128), 69757 states have internal predecessors, (76128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:21:00,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69758 states to 69758 states and 76128 transitions. [2024-11-16 04:21:00,993 INFO L78 Accepts]: Start accepts. Automaton has 69758 states and 76128 transitions. Word has length 444 [2024-11-16 04:21:00,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:21:00,993 INFO L471 AbstractCegarLoop]: Abstraction has 69758 states and 76128 transitions. [2024-11-16 04:21:00,994 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 120.66666666666667) internal successors, (362), 3 states have internal predecessors, (362), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:21:00,994 INFO L276 IsEmpty]: Start isEmpty. Operand 69758 states and 76128 transitions. [2024-11-16 04:21:01,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 448 [2024-11-16 04:21:01,002 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:21:01,002 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:21:01,002 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-16 04:21:01,002 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:21:01,002 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:21:01,002 INFO L85 PathProgramCache]: Analyzing trace with hash -68043867, now seen corresponding path program 1 times [2024-11-16 04:21:01,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:21:01,003 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1371554296] [2024-11-16 04:21:01,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:21:01,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:21:01,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:21:01,364 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 281 proven. 0 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2024-11-16 04:21:01,364 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:21:01,364 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1371554296] [2024-11-16 04:21:01,364 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1371554296] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:21:01,364 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:21:01,364 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 04:21:01,364 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1522638891] [2024-11-16 04:21:01,364 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:21:01,365 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:21:01,365 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:21:01,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:21:01,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:21:01,365 INFO L87 Difference]: Start difference. First operand 69758 states and 76128 transitions. Second operand has 3 states, 3 states have (on average 121.66666666666667) internal successors, (365), 3 states have internal predecessors, (365), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:21:03,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:21:03,030 INFO L93 Difference]: Finished difference Result 151473 states and 165428 transitions. [2024-11-16 04:21:03,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:21:03,030 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 121.66666666666667) internal successors, (365), 3 states have internal predecessors, (365), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 447 [2024-11-16 04:21:03,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:21:03,136 INFO L225 Difference]: With dead ends: 151473 [2024-11-16 04:21:03,136 INFO L226 Difference]: Without dead ends: 81717 [2024-11-16 04:21:03,184 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:21:03,185 INFO L432 NwaCegarLoop]: 358 mSDtfsCounter, 296 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 1290 mSolverCounterSat, 118 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 296 SdHoareTripleChecker+Valid, 423 SdHoareTripleChecker+Invalid, 1408 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 118 IncrementalHoareTripleChecker+Valid, 1290 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-16 04:21:03,185 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [296 Valid, 423 Invalid, 1408 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [118 Valid, 1290 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-16 04:21:03,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81717 states. [2024-11-16 04:21:04,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81717 to 80416. [2024-11-16 04:21:04,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80416 states, 80415 states have (on average 1.0888888888888888) internal successors, (87563), 80415 states have internal predecessors, (87563), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:21:04,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80416 states to 80416 states and 87563 transitions. [2024-11-16 04:21:04,154 INFO L78 Accepts]: Start accepts. Automaton has 80416 states and 87563 transitions. Word has length 447 [2024-11-16 04:21:04,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:21:04,155 INFO L471 AbstractCegarLoop]: Abstraction has 80416 states and 87563 transitions. [2024-11-16 04:21:04,155 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 121.66666666666667) internal successors, (365), 3 states have internal predecessors, (365), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:21:04,155 INFO L276 IsEmpty]: Start isEmpty. Operand 80416 states and 87563 transitions. [2024-11-16 04:21:04,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 465 [2024-11-16 04:21:04,164 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:21:04,165 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:21:04,165 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-16 04:21:04,165 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:21:04,165 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:21:04,165 INFO L85 PathProgramCache]: Analyzing trace with hash 269659832, now seen corresponding path program 1 times [2024-11-16 04:21:04,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:21:04,165 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2110635127] [2024-11-16 04:21:04,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:21:04,165 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:21:04,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:21:04,717 INFO L134 CoverageAnalysis]: Checked inductivity of 371 backedges. 280 proven. 83 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-16 04:21:04,718 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:21:04,718 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2110635127] [2024-11-16 04:21:04,718 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2110635127] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 04:21:04,718 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1012370044] [2024-11-16 04:21:04,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:21:04,718 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 04:21:04,718 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 04:21:04,720 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 04:21:04,723 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-16 04:21:05,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:21:05,005 INFO L255 TraceCheckSpWp]: Trace formula consists of 588 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-16 04:21:05,022 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 04:21:05,594 INFO L134 CoverageAnalysis]: Checked inductivity of 371 backedges. 198 proven. 173 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 04:21:05,595 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 04:21:06,139 INFO L134 CoverageAnalysis]: Checked inductivity of 371 backedges. 371 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 04:21:06,140 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1012370044] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-16 04:21:06,140 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-16 04:21:06,140 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [3, 5] total 9 [2024-11-16 04:21:06,140 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [587210157] [2024-11-16 04:21:06,140 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:21:06,141 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 04:21:06,141 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:21:06,142 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 04:21:06,142 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=49, Unknown=0, NotChecked=0, Total=90 [2024-11-16 04:21:06,142 INFO L87 Difference]: Start difference. First operand 80416 states and 87563 transitions. Second operand has 6 states, 6 states have (on average 77.33333333333333) internal successors, (464), 5 states have internal predecessors, (464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:21:08,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:21:08,818 INFO L93 Difference]: Finished difference Result 182174 states and 198991 transitions. [2024-11-16 04:21:08,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 04:21:08,819 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 77.33333333333333) internal successors, (464), 5 states have internal predecessors, (464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 464 [2024-11-16 04:21:08,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:21:08,927 INFO L225 Difference]: With dead ends: 182174 [2024-11-16 04:21:08,927 INFO L226 Difference]: Without dead ends: 99617 [2024-11-16 04:21:08,970 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 929 GetRequests, 921 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=41, Invalid=49, Unknown=0, NotChecked=0, Total=90 [2024-11-16 04:21:08,971 INFO L432 NwaCegarLoop]: 101 mSDtfsCounter, 1090 mSDsluCounter, 112 mSDsCounter, 0 mSdLazyCounter, 2638 mSolverCounterSat, 546 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1090 SdHoareTripleChecker+Valid, 213 SdHoareTripleChecker+Invalid, 3184 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 546 IncrementalHoareTripleChecker+Valid, 2638 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-11-16 04:21:08,971 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1090 Valid, 213 Invalid, 3184 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [546 Valid, 2638 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-11-16 04:21:09,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99617 states. [2024-11-16 04:21:09,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99617 to 84241. [2024-11-16 04:21:10,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84241 states, 84240 states have (on average 1.087167616334283) internal successors, (91583), 84240 states have internal predecessors, (91583), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:21:10,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84241 states to 84241 states and 91583 transitions. [2024-11-16 04:21:10,118 INFO L78 Accepts]: Start accepts. Automaton has 84241 states and 91583 transitions. Word has length 464 [2024-11-16 04:21:10,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:21:10,119 INFO L471 AbstractCegarLoop]: Abstraction has 84241 states and 91583 transitions. [2024-11-16 04:21:10,119 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 77.33333333333333) internal successors, (464), 5 states have internal predecessors, (464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:21:10,119 INFO L276 IsEmpty]: Start isEmpty. Operand 84241 states and 91583 transitions. [2024-11-16 04:21:10,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 498 [2024-11-16 04:21:10,130 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:21:10,130 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:21:10,143 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-16 04:21:10,331 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-11-16 04:21:10,331 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:21:10,331 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:21:10,332 INFO L85 PathProgramCache]: Analyzing trace with hash -255650776, now seen corresponding path program 1 times [2024-11-16 04:21:10,332 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:21:10,332 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1912706355] [2024-11-16 04:21:10,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:21:10,332 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:21:10,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:21:10,794 INFO L134 CoverageAnalysis]: Checked inductivity of 613 backedges. 341 proven. 0 refuted. 0 times theorem prover too weak. 272 trivial. 0 not checked. [2024-11-16 04:21:10,795 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:21:10,795 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1912706355] [2024-11-16 04:21:10,795 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1912706355] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:21:10,795 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:21:10,795 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 04:21:10,795 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1830106575] [2024-11-16 04:21:10,795 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:21:10,796 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:21:10,796 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:21:10,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:21:10,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:21:10,797 INFO L87 Difference]: Start difference. First operand 84241 states and 91583 transitions. Second operand has 3 states, 3 states have (on average 103.33333333333333) internal successors, (310), 3 states have internal predecessors, (310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:21:12,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:21:12,468 INFO L93 Difference]: Finished difference Result 180442 states and 196147 transitions. [2024-11-16 04:21:12,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:21:12,468 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 103.33333333333333) internal successors, (310), 3 states have internal predecessors, (310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 497 [2024-11-16 04:21:12,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:21:12,585 INFO L225 Difference]: With dead ends: 180442 [2024-11-16 04:21:12,585 INFO L226 Difference]: Without dead ends: 96203 [2024-11-16 04:21:12,617 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:21:12,617 INFO L432 NwaCegarLoop]: 344 mSDtfsCounter, 299 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 1230 mSolverCounterSat, 137 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 299 SdHoareTripleChecker+Valid, 404 SdHoareTripleChecker+Invalid, 1367 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 137 IncrementalHoareTripleChecker+Valid, 1230 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-16 04:21:12,618 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [299 Valid, 404 Invalid, 1367 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [137 Valid, 1230 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-16 04:21:12,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96203 states. [2024-11-16 04:21:13,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96203 to 85947. [2024-11-16 04:21:13,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85947 states, 85946 states have (on average 1.084518185837619) internal successors, (93210), 85946 states have internal predecessors, (93210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:21:13,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85947 states to 85947 states and 93210 transitions. [2024-11-16 04:21:13,737 INFO L78 Accepts]: Start accepts. Automaton has 85947 states and 93210 transitions. Word has length 497 [2024-11-16 04:21:13,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:21:13,738 INFO L471 AbstractCegarLoop]: Abstraction has 85947 states and 93210 transitions. [2024-11-16 04:21:13,738 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 103.33333333333333) internal successors, (310), 3 states have internal predecessors, (310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:21:13,738 INFO L276 IsEmpty]: Start isEmpty. Operand 85947 states and 93210 transitions. [2024-11-16 04:21:13,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 505 [2024-11-16 04:21:13,747 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:21:13,747 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:21:13,747 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-16 04:21:13,747 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:21:13,747 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:21:13,747 INFO L85 PathProgramCache]: Analyzing trace with hash 1798519756, now seen corresponding path program 1 times [2024-11-16 04:21:13,747 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:21:13,748 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [71584529] [2024-11-16 04:21:13,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:21:13,748 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:21:13,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:21:14,636 INFO L134 CoverageAnalysis]: Checked inductivity of 611 backedges. 331 proven. 8 refuted. 0 times theorem prover too weak. 272 trivial. 0 not checked. [2024-11-16 04:21:14,636 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:21:14,637 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [71584529] [2024-11-16 04:21:14,637 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [71584529] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 04:21:14,637 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1977180754] [2024-11-16 04:21:14,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:21:14,637 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 04:21:14,637 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 04:21:14,638 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 04:21:14,639 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-16 04:21:14,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:21:14,774 INFO L255 TraceCheckSpWp]: Trace formula consists of 649 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-16 04:21:14,781 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 04:21:15,075 INFO L134 CoverageAnalysis]: Checked inductivity of 611 backedges. 393 proven. 83 refuted. 0 times theorem prover too weak. 135 trivial. 0 not checked. [2024-11-16 04:21:15,076 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 04:21:15,786 INFO L134 CoverageAnalysis]: Checked inductivity of 611 backedges. 393 proven. 83 refuted. 0 times theorem prover too weak. 135 trivial. 0 not checked. [2024-11-16 04:21:15,787 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1977180754] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-16 04:21:15,787 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-16 04:21:15,787 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 3, 3] total 9 [2024-11-16 04:21:15,787 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [156417634] [2024-11-16 04:21:15,787 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-16 04:21:15,788 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-16 04:21:15,788 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:21:15,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-16 04:21:15,789 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2024-11-16 04:21:15,789 INFO L87 Difference]: Start difference. First operand 85947 states and 93210 transitions. Second operand has 9 states, 9 states have (on average 98.33333333333333) internal successors, (885), 9 states have internal predecessors, (885), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:21:23,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:21:23,986 INFO L93 Difference]: Finished difference Result 230802 states and 251016 transitions. [2024-11-16 04:21:23,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-16 04:21:23,987 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 98.33333333333333) internal successors, (885), 9 states have internal predecessors, (885), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 504 [2024-11-16 04:21:23,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:21:24,139 INFO L225 Difference]: With dead ends: 230802 [2024-11-16 04:21:24,140 INFO L226 Difference]: Without dead ends: 139298 [2024-11-16 04:21:24,159 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1029 GetRequests, 1013 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=100, Invalid=206, Unknown=0, NotChecked=0, Total=306 [2024-11-16 04:21:24,159 INFO L432 NwaCegarLoop]: 76 mSDtfsCounter, 7556 mSDsluCounter, 265 mSDsCounter, 0 mSdLazyCounter, 8737 mSolverCounterSat, 1774 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7556 SdHoareTripleChecker+Valid, 341 SdHoareTripleChecker+Invalid, 10511 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1774 IncrementalHoareTripleChecker+Valid, 8737 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.0s IncrementalHoareTripleChecker+Time [2024-11-16 04:21:24,160 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [7556 Valid, 341 Invalid, 10511 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1774 Valid, 8737 Invalid, 0 Unknown, 0 Unchecked, 7.0s Time] [2024-11-16 04:21:24,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139298 states. [2024-11-16 04:21:25,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139298 to 123850. [2024-11-16 04:21:25,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123850 states, 123849 states have (on average 1.068583517024764) internal successors, (132343), 123849 states have internal predecessors, (132343), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:21:25,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123850 states to 123850 states and 132343 transitions. [2024-11-16 04:21:25,935 INFO L78 Accepts]: Start accepts. Automaton has 123850 states and 132343 transitions. Word has length 504 [2024-11-16 04:21:25,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:21:25,936 INFO L471 AbstractCegarLoop]: Abstraction has 123850 states and 132343 transitions. [2024-11-16 04:21:25,936 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 98.33333333333333) internal successors, (885), 9 states have internal predecessors, (885), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:21:25,936 INFO L276 IsEmpty]: Start isEmpty. Operand 123850 states and 132343 transitions. [2024-11-16 04:21:25,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 542 [2024-11-16 04:21:25,946 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:21:25,946 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:21:25,959 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-16 04:21:26,147 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable19 [2024-11-16 04:21:26,147 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:21:26,148 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:21:26,148 INFO L85 PathProgramCache]: Analyzing trace with hash -941931114, now seen corresponding path program 1 times [2024-11-16 04:21:26,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:21:26,148 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [766256134] [2024-11-16 04:21:26,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:21:26,148 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:21:26,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:21:26,329 INFO L134 CoverageAnalysis]: Checked inductivity of 658 backedges. 383 proven. 0 refuted. 0 times theorem prover too weak. 275 trivial. 0 not checked. [2024-11-16 04:21:26,329 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:21:26,329 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [766256134] [2024-11-16 04:21:26,329 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [766256134] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:21:26,329 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:21:26,329 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 04:21:26,329 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [446597161] [2024-11-16 04:21:26,329 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:21:26,330 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:21:26,330 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:21:26,330 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:21:26,330 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:21:26,330 INFO L87 Difference]: Start difference. First operand 123850 states and 132343 transitions. Second operand has 3 states, 3 states have (on average 117.0) internal successors, (351), 3 states have internal predecessors, (351), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:21:28,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:21:28,127 INFO L93 Difference]: Finished difference Result 258806 states and 276336 transitions. [2024-11-16 04:21:28,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:21:28,127 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 117.0) internal successors, (351), 3 states have internal predecessors, (351), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 541 [2024-11-16 04:21:28,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:21:28,279 INFO L225 Difference]: With dead ends: 258806 [2024-11-16 04:21:28,279 INFO L226 Difference]: Without dead ends: 135384 [2024-11-16 04:21:28,341 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:21:28,342 INFO L432 NwaCegarLoop]: 121 mSDtfsCounter, 334 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 1159 mSolverCounterSat, 277 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 334 SdHoareTripleChecker+Valid, 140 SdHoareTripleChecker+Invalid, 1436 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 277 IncrementalHoareTripleChecker+Valid, 1159 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-16 04:21:28,342 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [334 Valid, 140 Invalid, 1436 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [277 Valid, 1159 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-16 04:21:28,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135384 states. [2024-11-16 04:21:30,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135384 to 115286. [2024-11-16 04:21:30,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115286 states, 115285 states have (on average 1.0653597605933123) internal successors, (122820), 115285 states have internal predecessors, (122820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:21:30,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115286 states to 115286 states and 122820 transitions. [2024-11-16 04:21:30,323 INFO L78 Accepts]: Start accepts. Automaton has 115286 states and 122820 transitions. Word has length 541 [2024-11-16 04:21:30,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:21:30,323 INFO L471 AbstractCegarLoop]: Abstraction has 115286 states and 122820 transitions. [2024-11-16 04:21:30,323 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 117.0) internal successors, (351), 3 states have internal predecessors, (351), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:21:30,324 INFO L276 IsEmpty]: Start isEmpty. Operand 115286 states and 122820 transitions. [2024-11-16 04:21:30,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 600 [2024-11-16 04:21:30,337 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:21:30,337 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:21:30,337 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-16 04:21:30,337 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:21:30,338 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:21:30,338 INFO L85 PathProgramCache]: Analyzing trace with hash -113327503, now seen corresponding path program 1 times [2024-11-16 04:21:30,338 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:21:30,338 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1693147178] [2024-11-16 04:21:30,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:21:30,338 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:21:30,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:21:30,988 INFO L134 CoverageAnalysis]: Checked inductivity of 918 backedges. 729 proven. 181 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-16 04:21:30,989 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:21:30,989 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1693147178] [2024-11-16 04:21:30,989 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1693147178] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 04:21:30,989 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1184063494] [2024-11-16 04:21:30,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:21:30,990 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 04:21:30,990 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 04:21:30,992 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 04:21:30,993 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-16 04:21:31,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:21:31,152 INFO L255 TraceCheckSpWp]: Trace formula consists of 768 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-16 04:21:31,157 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 04:21:31,355 INFO L134 CoverageAnalysis]: Checked inductivity of 918 backedges. 422 proven. 0 refuted. 0 times theorem prover too weak. 496 trivial. 0 not checked. [2024-11-16 04:21:31,355 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 04:21:31,355 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1184063494] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:21:31,355 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 04:21:31,355 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2024-11-16 04:21:31,355 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1829769547] [2024-11-16 04:21:31,355 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:21:31,356 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:21:31,356 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:21:31,356 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:21:31,356 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-16 04:21:31,356 INFO L87 Difference]: Start difference. First operand 115286 states and 122820 transitions. Second operand has 3 states, 3 states have (on average 112.66666666666667) internal successors, (338), 3 states have internal predecessors, (338), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:21:32,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:21:32,923 INFO L93 Difference]: Finished difference Result 233135 states and 248401 transitions. [2024-11-16 04:21:32,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:21:32,923 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 112.66666666666667) internal successors, (338), 3 states have internal predecessors, (338), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 599 [2024-11-16 04:21:32,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:21:33,067 INFO L225 Difference]: With dead ends: 233135 [2024-11-16 04:21:33,067 INFO L226 Difference]: Without dead ends: 118277 [2024-11-16 04:21:33,128 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 603 GetRequests, 599 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-16 04:21:33,128 INFO L432 NwaCegarLoop]: 251 mSDtfsCounter, 267 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 1139 mSolverCounterSat, 153 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 267 SdHoareTripleChecker+Valid, 297 SdHoareTripleChecker+Invalid, 1292 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 153 IncrementalHoareTripleChecker+Valid, 1139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-16 04:21:33,129 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [267 Valid, 297 Invalid, 1292 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [153 Valid, 1139 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-16 04:21:33,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118277 states. [2024-11-16 04:21:34,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118277 to 107180. [2024-11-16 04:21:34,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107180 states, 107179 states have (on average 1.065022065889773) internal successors, (114148), 107179 states have internal predecessors, (114148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:21:34,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107180 states to 107180 states and 114148 transitions. [2024-11-16 04:21:34,683 INFO L78 Accepts]: Start accepts. Automaton has 107180 states and 114148 transitions. Word has length 599 [2024-11-16 04:21:34,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:21:34,684 INFO L471 AbstractCegarLoop]: Abstraction has 107180 states and 114148 transitions. [2024-11-16 04:21:34,684 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 112.66666666666667) internal successors, (338), 3 states have internal predecessors, (338), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:21:34,684 INFO L276 IsEmpty]: Start isEmpty. Operand 107180 states and 114148 transitions. [2024-11-16 04:21:34,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 730 [2024-11-16 04:21:34,719 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:21:34,720 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:21:34,735 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-16 04:21:34,920 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 04:21:34,921 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:21:34,921 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:21:34,921 INFO L85 PathProgramCache]: Analyzing trace with hash 1469703431, now seen corresponding path program 1 times [2024-11-16 04:21:34,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:21:34,922 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [984735818] [2024-11-16 04:21:34,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:21:34,922 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:21:35,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:21:35,256 INFO L134 CoverageAnalysis]: Checked inductivity of 816 backedges. 493 proven. 0 refuted. 0 times theorem prover too weak. 323 trivial. 0 not checked. [2024-11-16 04:21:35,256 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:21:35,257 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [984735818] [2024-11-16 04:21:35,257 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [984735818] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:21:35,257 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:21:35,257 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 04:21:35,257 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1849865913] [2024-11-16 04:21:35,257 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:21:35,258 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:21:35,258 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:21:35,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:21:35,259 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:21:35,259 INFO L87 Difference]: Start difference. First operand 107180 states and 114148 transitions. Second operand has 3 states, 3 states have (on average 164.0) internal successors, (492), 3 states have internal predecessors, (492), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:21:37,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:21:37,015 INFO L93 Difference]: Finished difference Result 215220 states and 229291 transitions. [2024-11-16 04:21:37,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:21:37,016 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 164.0) internal successors, (492), 3 states have internal predecessors, (492), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 729 [2024-11-16 04:21:37,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:21:37,169 INFO L225 Difference]: With dead ends: 215220 [2024-11-16 04:21:37,170 INFO L226 Difference]: Without dead ends: 108468 [2024-11-16 04:21:37,228 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:21:37,228 INFO L432 NwaCegarLoop]: 619 mSDtfsCounter, 494 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 1126 mSolverCounterSat, 182 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 494 SdHoareTripleChecker+Valid, 659 SdHoareTripleChecker+Invalid, 1308 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 182 IncrementalHoareTripleChecker+Valid, 1126 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-16 04:21:37,229 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [494 Valid, 659 Invalid, 1308 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [182 Valid, 1126 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-16 04:21:37,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108468 states. [2024-11-16 04:21:38,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108468 to 107181. [2024-11-16 04:21:38,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107181 states, 107180 states have (on average 1.0572028363500654) internal successors, (113311), 107180 states have internal predecessors, (113311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:21:38,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107181 states to 107181 states and 113311 transitions. [2024-11-16 04:21:38,495 INFO L78 Accepts]: Start accepts. Automaton has 107181 states and 113311 transitions. Word has length 729 [2024-11-16 04:21:38,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:21:38,495 INFO L471 AbstractCegarLoop]: Abstraction has 107181 states and 113311 transitions. [2024-11-16 04:21:38,495 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 164.0) internal successors, (492), 3 states have internal predecessors, (492), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:21:38,495 INFO L276 IsEmpty]: Start isEmpty. Operand 107181 states and 113311 transitions. [2024-11-16 04:21:38,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 763 [2024-11-16 04:21:38,519 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:21:38,519 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:21:38,519 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-16 04:21:38,519 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:21:38,520 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:21:38,520 INFO L85 PathProgramCache]: Analyzing trace with hash 142204182, now seen corresponding path program 1 times [2024-11-16 04:21:38,520 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:21:38,520 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [352373217] [2024-11-16 04:21:38,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:21:38,520 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:21:38,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat