./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem03_label01.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8be7027f 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/Problem03_label01.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 92f387aee9179611b681311904b53986764751325111bb2d842a850437b442f7 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dk.perfect-tracechecks-8be7027-m [2024-11-11 16:06:45,345 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-11 16:06:45,420 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-11 16:06:45,425 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-11 16:06:45,425 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-11 16:06:45,451 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-11 16:06:45,451 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-11 16:06:45,452 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-11 16:06:45,454 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-11 16:06:45,456 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-11 16:06:45,456 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-11 16:06:45,456 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-11 16:06:45,457 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-11 16:06:45,457 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-11 16:06:45,457 INFO L153 SettingsManager]: * Use SBE=true [2024-11-11 16:06:45,458 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-11 16:06:45,458 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-11 16:06:45,458 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-11 16:06:45,458 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-11 16:06:45,459 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-11 16:06:45,459 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-11 16:06:45,465 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-11 16:06:45,465 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-11 16:06:45,465 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-11 16:06:45,465 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-11 16:06:45,466 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-11 16:06:45,466 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-11 16:06:45,466 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-11 16:06:45,466 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-11 16:06:45,467 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-11 16:06:45,467 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-11 16:06:45,467 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-11 16:06:45,468 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-11 16:06:45,468 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-11 16:06:45,469 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-11 16:06:45,469 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-11 16:06:45,469 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-11 16:06:45,470 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-11 16:06:45,470 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-11 16:06:45,470 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-11 16:06:45,470 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-11 16:06:45,471 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-11 16:06:45,471 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 92f387aee9179611b681311904b53986764751325111bb2d842a850437b442f7 [2024-11-11 16:06:45,723 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-11 16:06:45,749 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-11 16:06:45,752 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-11 16:06:45,753 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-11 16:06:45,753 INFO L274 PluginConnector]: CDTParser initialized [2024-11-11 16:06:45,755 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem03_label01.c [2024-11-11 16:06:47,306 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-11 16:06:47,662 INFO L384 CDTParser]: Found 1 translation units. [2024-11-11 16:06:47,664 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem03_label01.c [2024-11-11 16:06:47,688 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f010e1a77/96bfcc5fb5fb42579b904c9e0bbed1cb/FLAGee1bf7126 [2024-11-11 16:06:47,708 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f010e1a77/96bfcc5fb5fb42579b904c9e0bbed1cb [2024-11-11 16:06:47,711 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-11 16:06:47,713 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-11 16:06:47,715 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-11 16:06:47,716 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-11 16:06:47,722 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-11 16:06:47,723 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 04:06:47" (1/1) ... [2024-11-11 16:06:47,724 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ba2717f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 04:06:47, skipping insertion in model container [2024-11-11 16:06:47,724 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 04:06:47" (1/1) ... [2024-11-11 16:06:47,795 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-11 16:06:48,319 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/Problem03_label01.c[59340,59353] [2024-11-11 16:06:48,359 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-11 16:06:48,372 INFO L200 MainTranslator]: Completed pre-run [2024-11-11 16:06:48,552 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/Problem03_label01.c[59340,59353] [2024-11-11 16:06:48,563 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-11 16:06:48,586 INFO L204 MainTranslator]: Completed translation [2024-11-11 16:06:48,586 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 04:06:48 WrapperNode [2024-11-11 16:06:48,587 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-11 16:06:48,588 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-11 16:06:48,588 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-11 16:06:48,588 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-11 16:06:48,596 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 04:06:48" (1/1) ... [2024-11-11 16:06:48,633 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 04:06:48" (1/1) ... [2024-11-11 16:06:48,717 INFO L138 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1772 [2024-11-11 16:06:48,718 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-11 16:06:48,718 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-11 16:06:48,719 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-11 16:06:48,719 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-11 16:06:48,731 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 04:06:48" (1/1) ... [2024-11-11 16:06:48,731 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 04:06:48" (1/1) ... [2024-11-11 16:06:48,777 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 04:06:48" (1/1) ... [2024-11-11 16:06:48,863 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]. [2024-11-11 16:06:48,863 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 04:06:48" (1/1) ... [2024-11-11 16:06:48,863 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 04:06:48" (1/1) ... [2024-11-11 16:06:48,950 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 04:06:48" (1/1) ... [2024-11-11 16:06:48,964 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 04:06:48" (1/1) ... [2024-11-11 16:06:48,990 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 04:06:48" (1/1) ... [2024-11-11 16:06:49,000 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 04:06:48" (1/1) ... [2024-11-11 16:06:49,013 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-11 16:06:49,014 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-11 16:06:49,014 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-11 16:06:49,015 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-11 16:06:49,015 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 04:06:48" (1/1) ... [2024-11-11 16:06:49,021 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-11 16:06:49,032 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 16:06:49,050 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) [2024-11-11 16:06:49,053 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 [2024-11-11 16:06:49,102 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-11 16:06:49,102 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-11 16:06:49,103 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-11 16:06:49,103 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-11 16:06:49,182 INFO L238 CfgBuilder]: Building ICFG [2024-11-11 16:06:49,184 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-11 16:06:51,004 INFO L? ?]: Removed 147 outVars from TransFormulas that were not future-live. [2024-11-11 16:06:51,004 INFO L287 CfgBuilder]: Performing block encoding [2024-11-11 16:06:51,034 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-11 16:06:51,034 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-11 16:06:51,035 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 04:06:51 BoogieIcfgContainer [2024-11-11 16:06:51,035 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-11 16:06:51,037 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-11 16:06:51,037 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-11 16:06:51,041 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-11 16:06:51,041 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.11 04:06:47" (1/3) ... [2024-11-11 16:06:51,042 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5dd767af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.11 04:06:51, skipping insertion in model container [2024-11-11 16:06:51,042 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 04:06:48" (2/3) ... [2024-11-11 16:06:51,043 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5dd767af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.11 04:06:51, skipping insertion in model container [2024-11-11 16:06:51,043 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 04:06:51" (3/3) ... [2024-11-11 16:06:51,044 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem03_label01.c [2024-11-11 16:06:51,064 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-11 16:06:51,064 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-11 16:06:51,170 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-11 16:06:51,179 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;@32c16989, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-11 16:06:51,179 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-11 16:06:51,186 INFO L276 IsEmpty]: Start isEmpty. Operand has 302 states, 300 states have (on average 1.73) internal successors, (519), 301 states have internal predecessors, (519), 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) [2024-11-11 16:06:51,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2024-11-11 16:06:51,204 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 16:06:51,205 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 16:06:51,206 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 16:06:51,212 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 16:06:51,212 INFO L85 PathProgramCache]: Analyzing trace with hash -2112974262, now seen corresponding path program 1 times [2024-11-11 16:06:51,222 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 16:06:51,222 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1999904044] [2024-11-11 16:06:51,223 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 16:06:51,223 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 16:06:51,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 16:06:51,985 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 16:06:51,986 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 16:06:51,986 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1999904044] [2024-11-11 16:06:51,987 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1999904044] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 16:06:51,987 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 16:06:51,987 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-11 16:06:51,990 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [146920959] [2024-11-11 16:06:51,991 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 16:06:51,997 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-11 16:06:51,998 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 16:06:52,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-11 16:06:52,029 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-11 16:06:52,032 INFO L87 Difference]: Start difference. First operand has 302 states, 300 states have (on average 1.73) internal successors, (519), 301 states have internal predecessors, (519), 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 62.0) internal successors, (186), 2 states have internal predecessors, (186), 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) [2024-11-11 16:06:53,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 16:06:53,186 INFO L93 Difference]: Finished difference Result 829 states and 1478 transitions. [2024-11-11 16:06:53,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-11 16:06:53,196 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 62.0) internal successors, (186), 2 states have internal predecessors, (186), 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 186 [2024-11-11 16:06:53,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 16:06:53,210 INFO L225 Difference]: With dead ends: 829 [2024-11-11 16:06:53,210 INFO L226 Difference]: Without dead ends: 463 [2024-11-11 16:06:53,214 INFO L434 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 [2024-11-11 16:06:53,217 INFO L435 NwaCegarLoop]: 109 mSDtfsCounter, 105 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 644 mSolverCounterSat, 255 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 127 SdHoareTripleChecker+Invalid, 899 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 255 IncrementalHoareTripleChecker+Valid, 644 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-11 16:06:53,218 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [105 Valid, 127 Invalid, 899 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [255 Valid, 644 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-11 16:06:53,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 463 states. [2024-11-11 16:06:53,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 463 to 449. [2024-11-11 16:06:53,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 449 states, 448 states have (on average 1.6183035714285714) internal successors, (725), 448 states have internal predecessors, (725), 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) [2024-11-11 16:06:53,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 449 states to 449 states and 725 transitions. [2024-11-11 16:06:53,282 INFO L78 Accepts]: Start accepts. Automaton has 449 states and 725 transitions. Word has length 186 [2024-11-11 16:06:53,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 16:06:53,283 INFO L471 AbstractCegarLoop]: Abstraction has 449 states and 725 transitions. [2024-11-11 16:06:53,284 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 62.0) internal successors, (186), 2 states have internal predecessors, (186), 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) [2024-11-11 16:06:53,284 INFO L276 IsEmpty]: Start isEmpty. Operand 449 states and 725 transitions. [2024-11-11 16:06:53,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2024-11-11 16:06:53,288 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 16:06:53,288 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-11 16:06:53,289 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-11 16:06:53,289 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 16:06:53,290 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 16:06:53,290 INFO L85 PathProgramCache]: Analyzing trace with hash -111511782, now seen corresponding path program 1 times [2024-11-11 16:06:53,290 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 16:06:53,290 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1595938045] [2024-11-11 16:06:53,291 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 16:06:53,291 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 16:06:53,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 16:06:53,578 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 16:06:53,579 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 16:06:53,579 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1595938045] [2024-11-11 16:06:53,579 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1595938045] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 16:06:53,579 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 16:06:53,580 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-11 16:06:53,580 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1392918844] [2024-11-11 16:06:53,580 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 16:06:53,581 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-11 16:06:53,582 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 16:06:53,582 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-11 16:06:53,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-11 16:06:53,583 INFO L87 Difference]: Start difference. First operand 449 states and 725 transitions. Second operand has 3 states, 3 states have (on average 63.666666666666664) internal successors, (191), 2 states have internal predecessors, (191), 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) [2024-11-11 16:06:54,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 16:06:54,333 INFO L93 Difference]: Finished difference Result 1319 states and 2138 transitions. [2024-11-11 16:06:54,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-11 16:06:54,334 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 63.666666666666664) internal successors, (191), 2 states have internal predecessors, (191), 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 191 [2024-11-11 16:06:54,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 16:06:54,338 INFO L225 Difference]: With dead ends: 1319 [2024-11-11 16:06:54,339 INFO L226 Difference]: Without dead ends: 872 [2024-11-11 16:06:54,341 INFO L434 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 [2024-11-11 16:06:54,343 INFO L435 NwaCegarLoop]: 115 mSDtfsCounter, 249 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 601 mSolverCounterSat, 105 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 249 SdHoareTripleChecker+Valid, 150 SdHoareTripleChecker+Invalid, 706 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 105 IncrementalHoareTripleChecker+Valid, 601 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-11 16:06:54,343 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [249 Valid, 150 Invalid, 706 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [105 Valid, 601 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-11 16:06:54,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 872 states. [2024-11-11 16:06:54,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 872 to 870. [2024-11-11 16:06:54,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 870 states, 869 states have (on average 1.5120828538550057) internal successors, (1314), 869 states have internal predecessors, (1314), 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) [2024-11-11 16:06:54,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 870 states to 870 states and 1314 transitions. [2024-11-11 16:06:54,390 INFO L78 Accepts]: Start accepts. Automaton has 870 states and 1314 transitions. Word has length 191 [2024-11-11 16:06:54,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 16:06:54,391 INFO L471 AbstractCegarLoop]: Abstraction has 870 states and 1314 transitions. [2024-11-11 16:06:54,391 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 63.666666666666664) internal successors, (191), 2 states have internal predecessors, (191), 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) [2024-11-11 16:06:54,392 INFO L276 IsEmpty]: Start isEmpty. Operand 870 states and 1314 transitions. [2024-11-11 16:06:54,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2024-11-11 16:06:54,402 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 16:06:54,402 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 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] [2024-11-11 16:06:54,402 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-11 16:06:54,403 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 16:06:54,404 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 16:06:54,407 INFO L85 PathProgramCache]: Analyzing trace with hash -1976884080, now seen corresponding path program 1 times [2024-11-11 16:06:54,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 16:06:54,408 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1258094427] [2024-11-11 16:06:54,408 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 16:06:54,408 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 16:06:54,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 16:06:54,765 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-11 16:06:54,765 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 16:06:54,766 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1258094427] [2024-11-11 16:06:54,766 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1258094427] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 16:06:54,766 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 16:06:54,766 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-11 16:06:54,766 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [298198538] [2024-11-11 16:06:54,766 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 16:06:54,767 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-11 16:06:54,767 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 16:06:54,768 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-11 16:06:54,768 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-11 16:06:54,768 INFO L87 Difference]: Start difference. First operand 870 states and 1314 transitions. Second operand has 3 states, 3 states have (on average 67.0) internal successors, (201), 3 states have internal predecessors, (201), 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) [2024-11-11 16:06:55,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 16:06:55,593 INFO L93 Difference]: Finished difference Result 2554 states and 3869 transitions. [2024-11-11 16:06:55,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-11 16:06:55,594 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 67.0) internal successors, (201), 3 states have internal predecessors, (201), 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 206 [2024-11-11 16:06:55,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 16:06:55,601 INFO L225 Difference]: With dead ends: 2554 [2024-11-11 16:06:55,601 INFO L226 Difference]: Without dead ends: 1686 [2024-11-11 16:06:55,603 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-11 16:06:55,608 INFO L435 NwaCegarLoop]: 388 mSDtfsCounter, 233 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 530 mSolverCounterSat, 170 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 233 SdHoareTripleChecker+Valid, 416 SdHoareTripleChecker+Invalid, 700 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 170 IncrementalHoareTripleChecker+Valid, 530 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-11 16:06:55,609 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [233 Valid, 416 Invalid, 700 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [170 Valid, 530 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-11 16:06:55,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1686 states. [2024-11-11 16:06:55,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1686 to 1684. [2024-11-11 16:06:55,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1684 states, 1683 states have (on average 1.3368983957219251) internal successors, (2250), 1683 states have internal predecessors, (2250), 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) [2024-11-11 16:06:55,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1684 states to 1684 states and 2250 transitions. [2024-11-11 16:06:55,648 INFO L78 Accepts]: Start accepts. Automaton has 1684 states and 2250 transitions. Word has length 206 [2024-11-11 16:06:55,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 16:06:55,648 INFO L471 AbstractCegarLoop]: Abstraction has 1684 states and 2250 transitions. [2024-11-11 16:06:55,649 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 67.0) internal successors, (201), 3 states have internal predecessors, (201), 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) [2024-11-11 16:06:55,649 INFO L276 IsEmpty]: Start isEmpty. Operand 1684 states and 2250 transitions. [2024-11-11 16:06:55,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2024-11-11 16:06:55,655 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 16:06:55,656 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-11 16:06:55,656 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-11 16:06:55,656 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 16:06:55,657 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 16:06:55,660 INFO L85 PathProgramCache]: Analyzing trace with hash -348362899, now seen corresponding path program 1 times [2024-11-11 16:06:55,660 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 16:06:55,660 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1297298731] [2024-11-11 16:06:55,660 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 16:06:55,661 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 16:06:55,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 16:06:55,901 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 16:06:55,902 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 16:06:55,902 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1297298731] [2024-11-11 16:06:55,902 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1297298731] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 16:06:55,902 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 16:06:55,903 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-11 16:06:55,903 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [607776241] [2024-11-11 16:06:55,903 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 16:06:55,904 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-11 16:06:55,904 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 16:06:55,906 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-11 16:06:55,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-11 16:06:55,907 INFO L87 Difference]: Start difference. First operand 1684 states and 2250 transitions. Second operand has 3 states, 3 states have (on average 69.66666666666667) internal successors, (209), 2 states have internal predecessors, (209), 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) [2024-11-11 16:06:56,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 16:06:56,760 INFO L93 Difference]: Finished difference Result 5003 states and 6689 transitions. [2024-11-11 16:06:56,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-11 16:06:56,761 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 69.66666666666667) internal successors, (209), 2 states have internal predecessors, (209), 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 209 [2024-11-11 16:06:56,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 16:06:56,773 INFO L225 Difference]: With dead ends: 5003 [2024-11-11 16:06:56,773 INFO L226 Difference]: Without dead ends: 3321 [2024-11-11 16:06:56,779 INFO L434 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 [2024-11-11 16:06:56,780 INFO L435 NwaCegarLoop]: 140 mSDtfsCounter, 239 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 638 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 239 SdHoareTripleChecker+Valid, 173 SdHoareTripleChecker+Invalid, 714 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 638 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-11 16:06:56,780 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [239 Valid, 173 Invalid, 714 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 638 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-11 16:06:56,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3321 states. [2024-11-11 16:06:56,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3321 to 3320. [2024-11-11 16:06:56,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3320 states, 3319 states have (on average 1.2847243145525762) internal successors, (4264), 3319 states have internal predecessors, (4264), 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) [2024-11-11 16:06:56,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3320 states to 3320 states and 4264 transitions. [2024-11-11 16:06:56,883 INFO L78 Accepts]: Start accepts. Automaton has 3320 states and 4264 transitions. Word has length 209 [2024-11-11 16:06:56,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 16:06:56,884 INFO L471 AbstractCegarLoop]: Abstraction has 3320 states and 4264 transitions. [2024-11-11 16:06:56,884 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 69.66666666666667) internal successors, (209), 2 states have internal predecessors, (209), 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) [2024-11-11 16:06:56,885 INFO L276 IsEmpty]: Start isEmpty. Operand 3320 states and 4264 transitions. [2024-11-11 16:06:56,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2024-11-11 16:06:56,892 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 16:06:56,892 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 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] [2024-11-11 16:06:56,892 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-11 16:06:56,893 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 16:06:56,894 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 16:06:56,894 INFO L85 PathProgramCache]: Analyzing trace with hash 1255138360, now seen corresponding path program 1 times [2024-11-11 16:06:56,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 16:06:56,894 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1970504005] [2024-11-11 16:06:56,894 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 16:06:56,894 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 16:06:56,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 16:06:57,300 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 46 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-11 16:06:57,301 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 16:06:57,301 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1970504005] [2024-11-11 16:06:57,302 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1970504005] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 16:06:57,303 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 16:06:57,303 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-11 16:06:57,303 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [495262973] [2024-11-11 16:06:57,303 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 16:06:57,304 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-11 16:06:57,304 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 16:06:57,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-11 16:06:57,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-11 16:06:57,305 INFO L87 Difference]: Start difference. First operand 3320 states and 4264 transitions. Second operand has 3 states, 3 states have (on average 72.0) internal successors, (216), 3 states have internal predecessors, (216), 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) [2024-11-11 16:06:58,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 16:06:58,257 INFO L93 Difference]: Finished difference Result 9900 states and 12717 transitions. [2024-11-11 16:06:58,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-11 16:06:58,258 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 72.0) internal successors, (216), 3 states have internal predecessors, (216), 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 221 [2024-11-11 16:06:58,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 16:06:58,285 INFO L225 Difference]: With dead ends: 9900 [2024-11-11 16:06:58,285 INFO L226 Difference]: Without dead ends: 6582 [2024-11-11 16:06:58,291 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-11 16:06:58,294 INFO L435 NwaCegarLoop]: 394 mSDtfsCounter, 204 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 599 mSolverCounterSat, 137 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 204 SdHoareTripleChecker+Valid, 416 SdHoareTripleChecker+Invalid, 736 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 137 IncrementalHoareTripleChecker+Valid, 599 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-11 16:06:58,294 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [204 Valid, 416 Invalid, 736 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [137 Valid, 599 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-11 16:06:58,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6582 states. [2024-11-11 16:06:58,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6582 to 6577. [2024-11-11 16:06:58,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6577 states, 6576 states have (on average 1.224756690997567) internal successors, (8054), 6576 states have internal predecessors, (8054), 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) [2024-11-11 16:06:58,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6577 states to 6577 states and 8054 transitions. [2024-11-11 16:06:58,431 INFO L78 Accepts]: Start accepts. Automaton has 6577 states and 8054 transitions. Word has length 221 [2024-11-11 16:06:58,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 16:06:58,433 INFO L471 AbstractCegarLoop]: Abstraction has 6577 states and 8054 transitions. [2024-11-11 16:06:58,433 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 72.0) internal successors, (216), 3 states have internal predecessors, (216), 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) [2024-11-11 16:06:58,434 INFO L276 IsEmpty]: Start isEmpty. Operand 6577 states and 8054 transitions. [2024-11-11 16:06:58,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2024-11-11 16:06:58,445 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 16:06:58,445 INFO L218 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 16:06:58,445 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-11 16:06:58,446 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 16:06:58,446 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 16:06:58,446 INFO L85 PathProgramCache]: Analyzing trace with hash 1069440014, now seen corresponding path program 1 times [2024-11-11 16:06:58,447 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 16:06:58,447 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1513376895] [2024-11-11 16:06:58,447 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 16:06:58,447 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 16:06:58,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 16:06:58,989 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 37 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 16:06:58,990 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 16:06:58,990 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1513376895] [2024-11-11 16:06:58,991 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1513376895] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-11 16:06:58,991 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1981930394] [2024-11-11 16:06:58,991 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 16:06:58,991 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 16:06:58,991 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 16:06:58,994 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) [2024-11-11 16:06:58,995 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-11 16:06:59,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 16:06:59,178 INFO L256 TraceCheckSpWp]: Trace formula consists of 423 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-11 16:06:59,193 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-11 16:06:59,528 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 37 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-11 16:06:59,528 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-11 16:06:59,806 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 37 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-11 16:06:59,806 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1981930394] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-11 16:06:59,806 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-11 16:06:59,807 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2024-11-11 16:06:59,807 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2016772259] [2024-11-11 16:06:59,809 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-11 16:06:59,810 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-11 16:06:59,810 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 16:06:59,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-11 16:06:59,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-11 16:06:59,811 INFO L87 Difference]: Start difference. First operand 6577 states and 8054 transitions. Second operand has 6 states, 6 states have (on average 73.66666666666667) internal successors, (442), 5 states have internal predecessors, (442), 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) [2024-11-11 16:07:02,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 16:07:02,720 INFO L93 Difference]: Finished difference Result 23253 states and 28743 transitions. [2024-11-11 16:07:02,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-11 16:07:02,721 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 73.66666666666667) internal successors, (442), 5 states have internal predecessors, (442), 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 224 [2024-11-11 16:07:02,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 16:07:02,779 INFO L225 Difference]: With dead ends: 23253 [2024-11-11 16:07:02,779 INFO L226 Difference]: Without dead ends: 16678 [2024-11-11 16:07:02,790 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 452 GetRequests, 445 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2024-11-11 16:07:02,791 INFO L435 NwaCegarLoop]: 120 mSDtfsCounter, 2305 mSDsluCounter, 164 mSDsCounter, 0 mSdLazyCounter, 2322 mSolverCounterSat, 865 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2305 SdHoareTripleChecker+Valid, 284 SdHoareTripleChecker+Invalid, 3187 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 865 IncrementalHoareTripleChecker+Valid, 2322 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2024-11-11 16:07:02,792 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2305 Valid, 284 Invalid, 3187 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [865 Valid, 2322 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2024-11-11 16:07:02,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16678 states. [2024-11-11 16:07:03,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16678 to 16397. [2024-11-11 16:07:03,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16397 states, 16396 states have (on average 1.2041961454013175) internal successors, (19744), 16396 states have internal predecessors, (19744), 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) [2024-11-11 16:07:03,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16397 states to 16397 states and 19744 transitions. [2024-11-11 16:07:03,182 INFO L78 Accepts]: Start accepts. Automaton has 16397 states and 19744 transitions. Word has length 224 [2024-11-11 16:07:03,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 16:07:03,182 INFO L471 AbstractCegarLoop]: Abstraction has 16397 states and 19744 transitions. [2024-11-11 16:07:03,182 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 73.66666666666667) internal successors, (442), 5 states have internal predecessors, (442), 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) [2024-11-11 16:07:03,183 INFO L276 IsEmpty]: Start isEmpty. Operand 16397 states and 19744 transitions. [2024-11-11 16:07:03,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2024-11-11 16:07:03,204 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 16:07:03,204 INFO L218 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 16:07:03,224 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-11 16:07:03,405 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,SelfDestructingSolverStorable5 [2024-11-11 16:07:03,406 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 16:07:03,407 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 16:07:03,407 INFO L85 PathProgramCache]: Analyzing trace with hash 477002638, now seen corresponding path program 1 times [2024-11-11 16:07:03,407 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 16:07:03,407 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1492408436] [2024-11-11 16:07:03,407 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 16:07:03,408 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 16:07:03,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 16:07:03,957 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 47 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 16:07:03,958 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 16:07:03,958 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1492408436] [2024-11-11 16:07:03,959 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1492408436] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-11 16:07:03,959 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1205470520] [2024-11-11 16:07:03,959 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 16:07:03,959 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 16:07:03,959 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 16:07:03,962 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) [2024-11-11 16:07:03,964 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-11 16:07:04,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 16:07:04,121 INFO L256 TraceCheckSpWp]: Trace formula consists of 431 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-11 16:07:04,130 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-11 16:07:04,368 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-11 16:07:04,368 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-11 16:07:04,368 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1205470520] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 16:07:04,369 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-11 16:07:04,369 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2024-11-11 16:07:04,369 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1413989022] [2024-11-11 16:07:04,369 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 16:07:04,370 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-11 16:07:04,370 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 16:07:04,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-11 16:07:04,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-11 16:07:04,371 INFO L87 Difference]: Start difference. First operand 16397 states and 19744 transitions. Second operand has 3 states, 3 states have (on average 76.33333333333333) internal successors, (229), 3 states have internal predecessors, (229), 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) [2024-11-11 16:07:05,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 16:07:05,118 INFO L93 Difference]: Finished difference Result 32796 states and 39493 transitions. [2024-11-11 16:07:05,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-11 16:07:05,119 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 76.33333333333333) internal successors, (229), 3 states have internal predecessors, (229), 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 234 [2024-11-11 16:07:05,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 16:07:05,153 INFO L225 Difference]: With dead ends: 32796 [2024-11-11 16:07:05,154 INFO L226 Difference]: Without dead ends: 16401 [2024-11-11 16:07:05,172 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 236 GetRequests, 233 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-11 16:07:05,174 INFO L435 NwaCegarLoop]: 80 mSDtfsCounter, 92 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 609 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 98 SdHoareTripleChecker+Invalid, 665 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 609 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-11 16:07:05,174 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 98 Invalid, 665 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 609 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-11 16:07:05,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16401 states. [2024-11-11 16:07:05,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16401 to 16397. [2024-11-11 16:07:05,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16397 states, 16396 states have (on average 1.1963893632593317) internal successors, (19616), 16396 states have internal predecessors, (19616), 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) [2024-11-11 16:07:05,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16397 states to 16397 states and 19616 transitions. [2024-11-11 16:07:05,434 INFO L78 Accepts]: Start accepts. Automaton has 16397 states and 19616 transitions. Word has length 234 [2024-11-11 16:07:05,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 16:07:05,434 INFO L471 AbstractCegarLoop]: Abstraction has 16397 states and 19616 transitions. [2024-11-11 16:07:05,434 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 76.33333333333333) internal successors, (229), 3 states have internal predecessors, (229), 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) [2024-11-11 16:07:05,434 INFO L276 IsEmpty]: Start isEmpty. Operand 16397 states and 19616 transitions. [2024-11-11 16:07:05,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 288 [2024-11-11 16:07:05,463 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 16:07:05,464 INFO L218 NwaCegarLoop]: trace histogram [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, 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] [2024-11-11 16:07:05,483 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-11 16:07:05,665 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,SelfDestructingSolverStorable6 [2024-11-11 16:07:05,665 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 16:07:05,666 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 16:07:05,666 INFO L85 PathProgramCache]: Analyzing trace with hash -1633020912, now seen corresponding path program 1 times [2024-11-11 16:07:05,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 16:07:05,666 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1226087777] [2024-11-11 16:07:05,666 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 16:07:05,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 16:07:05,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 16:07:06,489 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 94 proven. 6 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2024-11-11 16:07:06,491 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 16:07:06,491 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1226087777] [2024-11-11 16:07:06,491 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1226087777] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-11 16:07:06,491 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2067146622] [2024-11-11 16:07:06,492 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 16:07:06,492 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 16:07:06,492 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 16:07:06,494 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) [2024-11-11 16:07:06,495 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-11 16:07:06,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 16:07:06,724 INFO L256 TraceCheckSpWp]: Trace formula consists of 514 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-11 16:07:06,730 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-11 16:07:06,802 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 147 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-11 16:07:06,803 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-11 16:07:06,803 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2067146622] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 16:07:06,803 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-11 16:07:06,804 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2024-11-11 16:07:06,804 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2004166711] [2024-11-11 16:07:06,804 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 16:07:06,805 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-11 16:07:06,805 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 16:07:06,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-11 16:07:06,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-11 16:07:06,806 INFO L87 Difference]: Start difference. First operand 16397 states and 19616 transitions. Second operand has 3 states, 3 states have (on average 94.0) internal successors, (282), 3 states have internal predecessors, (282), 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) [2024-11-11 16:07:07,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 16:07:07,748 INFO L93 Difference]: Finished difference Result 39901 states and 48419 transitions. [2024-11-11 16:07:07,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-11 16:07:07,748 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 94.0) internal successors, (282), 3 states have internal predecessors, (282), 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 287 [2024-11-11 16:07:07,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 16:07:07,798 INFO L225 Difference]: With dead ends: 39901 [2024-11-11 16:07:07,800 INFO L226 Difference]: Without dead ends: 23506 [2024-11-11 16:07:07,823 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 289 GetRequests, 286 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-11 16:07:07,824 INFO L435 NwaCegarLoop]: 141 mSDtfsCounter, 194 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 518 mSolverCounterSat, 187 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 194 SdHoareTripleChecker+Valid, 166 SdHoareTripleChecker+Invalid, 705 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 187 IncrementalHoareTripleChecker+Valid, 518 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-11 16:07:07,827 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [194 Valid, 166 Invalid, 705 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [187 Valid, 518 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-11 16:07:07,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23506 states. [2024-11-11 16:07:08,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23506 to 23502. [2024-11-11 16:07:08,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23502 states, 23501 states have (on average 1.1703331773116037) internal successors, (27504), 23501 states have internal predecessors, (27504), 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) [2024-11-11 16:07:08,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23502 states to 23502 states and 27504 transitions. [2024-11-11 16:07:08,109 INFO L78 Accepts]: Start accepts. Automaton has 23502 states and 27504 transitions. Word has length 287 [2024-11-11 16:07:08,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 16:07:08,110 INFO L471 AbstractCegarLoop]: Abstraction has 23502 states and 27504 transitions. [2024-11-11 16:07:08,110 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 94.0) internal successors, (282), 3 states have internal predecessors, (282), 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) [2024-11-11 16:07:08,110 INFO L276 IsEmpty]: Start isEmpty. Operand 23502 states and 27504 transitions. [2024-11-11 16:07:08,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 289 [2024-11-11 16:07:08,246 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 16:07:08,247 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 16:07:08,265 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-11 16:07:08,447 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 16:07:08,448 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 16:07:08,448 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 16:07:08,448 INFO L85 PathProgramCache]: Analyzing trace with hash 1843144008, now seen corresponding path program 1 times [2024-11-11 16:07:08,449 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 16:07:08,449 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [914552247] [2024-11-11 16:07:08,449 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 16:07:08,449 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 16:07:08,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 16:07:08,856 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 68 proven. 0 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2024-11-11 16:07:08,856 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 16:07:08,856 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [914552247] [2024-11-11 16:07:08,856 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [914552247] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 16:07:08,856 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 16:07:08,857 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-11 16:07:08,857 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2069511514] [2024-11-11 16:07:08,857 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 16:07:08,857 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-11 16:07:08,857 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 16:07:08,858 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-11 16:07:08,862 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-11 16:07:08,863 INFO L87 Difference]: Start difference. First operand 23502 states and 27504 transitions. Second operand has 3 states, 3 states have (on average 70.0) internal successors, (210), 3 states have internal predecessors, (210), 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) [2024-11-11 16:07:09,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 16:07:09,842 INFO L93 Difference]: Finished difference Result 54945 states and 64338 transitions. [2024-11-11 16:07:09,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-11 16:07:09,842 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 70.0) internal successors, (210), 3 states have internal predecessors, (210), 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 288 [2024-11-11 16:07:09,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 16:07:09,896 INFO L225 Difference]: With dead ends: 54945 [2024-11-11 16:07:09,897 INFO L226 Difference]: Without dead ends: 31445 [2024-11-11 16:07:09,917 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-11 16:07:09,918 INFO L435 NwaCegarLoop]: 356 mSDtfsCounter, 214 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 561 mSolverCounterSat, 162 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 214 SdHoareTripleChecker+Valid, 377 SdHoareTripleChecker+Invalid, 723 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 162 IncrementalHoareTripleChecker+Valid, 561 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-11 16:07:09,918 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [214 Valid, 377 Invalid, 723 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [162 Valid, 561 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-11 16:07:09,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31445 states. [2024-11-11 16:07:10,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31445 to 29998. [2024-11-11 16:07:10,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29998 states, 29997 states have (on average 1.1514151415141514) internal successors, (34539), 29997 states have internal predecessors, (34539), 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) [2024-11-11 16:07:10,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29998 states to 29998 states and 34539 transitions. [2024-11-11 16:07:10,313 INFO L78 Accepts]: Start accepts. Automaton has 29998 states and 34539 transitions. Word has length 288 [2024-11-11 16:07:10,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 16:07:10,313 INFO L471 AbstractCegarLoop]: Abstraction has 29998 states and 34539 transitions. [2024-11-11 16:07:10,313 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 70.0) internal successors, (210), 3 states have internal predecessors, (210), 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) [2024-11-11 16:07:10,314 INFO L276 IsEmpty]: Start isEmpty. Operand 29998 states and 34539 transitions. [2024-11-11 16:07:10,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 305 [2024-11-11 16:07:10,343 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 16:07:10,343 INFO L218 NwaCegarLoop]: trace histogram [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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-11 16:07:10,344 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-11 16:07:10,344 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 16:07:10,344 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 16:07:10,345 INFO L85 PathProgramCache]: Analyzing trace with hash 559443555, now seen corresponding path program 1 times [2024-11-11 16:07:10,345 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 16:07:10,345 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1589443749] [2024-11-11 16:07:10,345 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 16:07:10,345 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 16:07:10,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 16:07:10,828 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 98 proven. 0 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2024-11-11 16:07:10,828 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 16:07:10,828 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1589443749] [2024-11-11 16:07:10,828 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1589443749] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 16:07:10,828 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 16:07:10,829 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-11 16:07:10,829 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [211727525] [2024-11-11 16:07:10,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 16:07:10,829 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-11 16:07:10,830 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 16:07:10,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-11 16:07:10,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-11 16:07:10,831 INFO L87 Difference]: Start difference. First operand 29998 states and 34539 transitions. Second operand has 4 states, 4 states have (on average 57.75) internal successors, (231), 3 states have internal predecessors, (231), 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) [2024-11-11 16:07:11,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 16:07:11,917 INFO L93 Difference]: Finished difference Result 60249 states and 69397 transitions. [2024-11-11 16:07:11,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-11 16:07:11,918 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 57.75) internal successors, (231), 3 states have internal predecessors, (231), 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 304 [2024-11-11 16:07:11,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 16:07:12,062 INFO L225 Difference]: With dead ends: 60249 [2024-11-11 16:07:12,063 INFO L226 Difference]: Without dead ends: 30253 [2024-11-11 16:07:12,078 INFO L434 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 [2024-11-11 16:07:12,079 INFO L435 NwaCegarLoop]: 108 mSDtfsCounter, 413 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 1100 mSolverCounterSat, 230 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 413 SdHoareTripleChecker+Valid, 148 SdHoareTripleChecker+Invalid, 1330 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 230 IncrementalHoareTripleChecker+Valid, 1100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-11 16:07:12,081 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [413 Valid, 148 Invalid, 1330 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [230 Valid, 1100 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-11 16:07:12,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30253 states. [2024-11-11 16:07:12,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30253 to 29186. [2024-11-11 16:07:12,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29186 states, 29185 states have (on average 1.152098680829193) internal successors, (33624), 29185 states have internal predecessors, (33624), 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) [2024-11-11 16:07:12,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29186 states to 29186 states and 33624 transitions. [2024-11-11 16:07:12,517 INFO L78 Accepts]: Start accepts. Automaton has 29186 states and 33624 transitions. Word has length 304 [2024-11-11 16:07:12,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 16:07:12,517 INFO L471 AbstractCegarLoop]: Abstraction has 29186 states and 33624 transitions. [2024-11-11 16:07:12,518 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 57.75) internal successors, (231), 3 states have internal predecessors, (231), 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) [2024-11-11 16:07:12,518 INFO L276 IsEmpty]: Start isEmpty. Operand 29186 states and 33624 transitions. [2024-11-11 16:07:12,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 320 [2024-11-11 16:07:12,543 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 16:07:12,543 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 16:07:12,543 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-11 16:07:12,544 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 16:07:12,544 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 16:07:12,544 INFO L85 PathProgramCache]: Analyzing trace with hash -1292944605, now seen corresponding path program 1 times [2024-11-11 16:07:12,545 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 16:07:12,545 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [206973508] [2024-11-11 16:07:12,545 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 16:07:12,545 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 16:07:12,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 16:07:12,922 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 131 proven. 0 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2024-11-11 16:07:12,923 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 16:07:12,923 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [206973508] [2024-11-11 16:07:12,923 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [206973508] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 16:07:12,923 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 16:07:12,923 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-11 16:07:12,923 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [681985883] [2024-11-11 16:07:12,923 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 16:07:12,924 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-11 16:07:12,924 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 16:07:12,925 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-11 16:07:12,925 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-11 16:07:12,925 INFO L87 Difference]: Start difference. First operand 29186 states and 33624 transitions. Second operand has 3 states, 3 states have (on average 87.33333333333333) internal successors, (262), 2 states have internal predecessors, (262), 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) [2024-11-11 16:07:13,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 16:07:13,850 INFO L93 Difference]: Finished difference Result 66951 states and 77667 transitions. [2024-11-11 16:07:13,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-11 16:07:13,851 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 87.33333333333333) internal successors, (262), 2 states have internal predecessors, (262), 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 319 [2024-11-11 16:07:13,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 16:07:13,900 INFO L225 Difference]: With dead ends: 66951 [2024-11-11 16:07:13,900 INFO L226 Difference]: Without dead ends: 37767 [2024-11-11 16:07:13,927 INFO L434 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 [2024-11-11 16:07:13,928 INFO L435 NwaCegarLoop]: 156 mSDtfsCounter, 168 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 666 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 168 SdHoareTripleChecker+Valid, 190 SdHoareTripleChecker+Invalid, 730 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 666 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-11 16:07:13,928 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [168 Valid, 190 Invalid, 730 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 666 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-11 16:07:13,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37767 states. [2024-11-11 16:07:14,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37767 to 36309. [2024-11-11 16:07:14,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36309 states, 36308 states have (on average 1.1625537071719731) internal successors, (42210), 36308 states have internal predecessors, (42210), 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) [2024-11-11 16:07:14,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36309 states to 36309 states and 42210 transitions. [2024-11-11 16:07:14,433 INFO L78 Accepts]: Start accepts. Automaton has 36309 states and 42210 transitions. Word has length 319 [2024-11-11 16:07:14,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 16:07:14,433 INFO L471 AbstractCegarLoop]: Abstraction has 36309 states and 42210 transitions. [2024-11-11 16:07:14,433 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 87.33333333333333) internal successors, (262), 2 states have internal predecessors, (262), 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) [2024-11-11 16:07:14,433 INFO L276 IsEmpty]: Start isEmpty. Operand 36309 states and 42210 transitions. [2024-11-11 16:07:14,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 325 [2024-11-11 16:07:14,669 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 16:07:14,670 INFO L218 NwaCegarLoop]: trace histogram [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, 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] [2024-11-11 16:07:14,670 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-11 16:07:14,673 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 16:07:14,674 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 16:07:14,674 INFO L85 PathProgramCache]: Analyzing trace with hash -74026137, now seen corresponding path program 1 times [2024-11-11 16:07:14,674 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 16:07:14,674 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [314781243] [2024-11-11 16:07:14,674 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 16:07:14,675 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 16:07:14,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 16:07:15,486 INFO L134 CoverageAnalysis]: Checked inductivity of 205 backedges. 141 proven. 6 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2024-11-11 16:07:15,487 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 16:07:15,487 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [314781243] [2024-11-11 16:07:15,487 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [314781243] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-11 16:07:15,487 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1251724960] [2024-11-11 16:07:15,487 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 16:07:15,487 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 16:07:15,488 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 16:07:15,490 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-11 16:07:15,491 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-11 16:07:15,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 16:07:15,669 INFO L256 TraceCheckSpWp]: Trace formula consists of 565 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-11 16:07:15,674 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-11 16:07:15,774 INFO L134 CoverageAnalysis]: Checked inductivity of 205 backedges. 199 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-11 16:07:15,775 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-11 16:07:15,775 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1251724960] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 16:07:15,775 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-11 16:07:15,775 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2024-11-11 16:07:15,777 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1106520960] [2024-11-11 16:07:15,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 16:07:15,778 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-11 16:07:15,778 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 16:07:15,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-11 16:07:15,779 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-11 16:07:15,780 INFO L87 Difference]: Start difference. First operand 36309 states and 42210 transitions. Second operand has 3 states, 3 states have (on average 106.33333333333333) internal successors, (319), 3 states have internal predecessors, (319), 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) [2024-11-11 16:07:16,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 16:07:16,625 INFO L93 Difference]: Finished difference Result 69949 states and 81293 transitions. [2024-11-11 16:07:16,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-11 16:07:16,626 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 106.33333333333333) internal successors, (319), 3 states have internal predecessors, (319), 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 324 [2024-11-11 16:07:16,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 16:07:16,669 INFO L225 Difference]: With dead ends: 69949 [2024-11-11 16:07:16,669 INFO L226 Difference]: Without dead ends: 33642 [2024-11-11 16:07:16,695 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 326 GetRequests, 323 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-11 16:07:16,696 INFO L435 NwaCegarLoop]: 355 mSDtfsCounter, 227 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 549 mSolverCounterSat, 115 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 227 SdHoareTripleChecker+Valid, 379 SdHoareTripleChecker+Invalid, 664 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 115 IncrementalHoareTripleChecker+Valid, 549 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-11 16:07:16,696 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [227 Valid, 379 Invalid, 664 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [115 Valid, 549 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-11 16:07:16,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33642 states. [2024-11-11 16:07:17,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33642 to 33234. [2024-11-11 16:07:17,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33234 states, 33233 states have (on average 1.1326994252700628) internal successors, (37643), 33233 states have internal predecessors, (37643), 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) [2024-11-11 16:07:17,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33234 states to 33234 states and 37643 transitions. [2024-11-11 16:07:17,225 INFO L78 Accepts]: Start accepts. Automaton has 33234 states and 37643 transitions. Word has length 324 [2024-11-11 16:07:17,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 16:07:17,226 INFO L471 AbstractCegarLoop]: Abstraction has 33234 states and 37643 transitions. [2024-11-11 16:07:17,226 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 106.33333333333333) internal successors, (319), 3 states have internal predecessors, (319), 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) [2024-11-11 16:07:17,226 INFO L276 IsEmpty]: Start isEmpty. Operand 33234 states and 37643 transitions. [2024-11-11 16:07:17,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 349 [2024-11-11 16:07:17,266 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 16:07:17,266 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 16:07:17,283 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-11 16:07:17,467 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 16:07:17,467 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 16:07:17,468 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 16:07:17,468 INFO L85 PathProgramCache]: Analyzing trace with hash -518595610, now seen corresponding path program 1 times [2024-11-11 16:07:17,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 16:07:17,468 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [490722404] [2024-11-11 16:07:17,468 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 16:07:17,468 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 16:07:17,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 16:07:18,184 INFO L134 CoverageAnalysis]: Checked inductivity of 392 backedges. 171 proven. 6 refuted. 0 times theorem prover too weak. 215 trivial. 0 not checked. [2024-11-11 16:07:18,185 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 16:07:18,185 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [490722404] [2024-11-11 16:07:18,185 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [490722404] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-11 16:07:18,185 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1058807580] [2024-11-11 16:07:18,185 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 16:07:18,185 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 16:07:18,186 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 16:07:18,187 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-11 16:07:18,189 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-11 16:07:18,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 16:07:18,372 INFO L256 TraceCheckSpWp]: Trace formula consists of 685 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-11 16:07:18,377 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-11 16:07:18,414 INFO L134 CoverageAnalysis]: Checked inductivity of 392 backedges. 258 proven. 0 refuted. 0 times theorem prover too weak. 134 trivial. 0 not checked. [2024-11-11 16:07:18,415 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-11 16:07:18,415 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1058807580] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 16:07:18,415 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-11 16:07:18,415 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2024-11-11 16:07:18,415 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1449708984] [2024-11-11 16:07:18,415 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 16:07:18,416 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-11 16:07:18,416 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 16:07:18,417 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-11 16:07:18,417 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-11 16:07:18,417 INFO L87 Difference]: Start difference. First operand 33234 states and 37643 transitions. Second operand has 3 states, 3 states have (on average 87.33333333333333) internal successors, (262), 3 states have internal predecessors, (262), 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) [2024-11-11 16:07:18,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 16:07:18,830 INFO L93 Difference]: Finished difference Result 96621 states and 109447 transitions. [2024-11-11 16:07:18,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-11 16:07:18,831 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 87.33333333333333) internal successors, (262), 3 states have internal predecessors, (262), 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 348 [2024-11-11 16:07:18,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 16:07:18,912 INFO L225 Difference]: With dead ends: 96621 [2024-11-11 16:07:18,912 INFO L226 Difference]: Without dead ends: 63389 [2024-11-11 16:07:18,945 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 350 GetRequests, 347 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-11 16:07:18,946 INFO L435 NwaCegarLoop]: 667 mSDtfsCounter, 307 mSDsluCounter, 295 mSDsCounter, 0 mSdLazyCounter, 149 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 307 SdHoareTripleChecker+Valid, 962 SdHoareTripleChecker+Invalid, 181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 149 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-11 16:07:18,946 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [307 Valid, 962 Invalid, 181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 149 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-11 16:07:18,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63389 states. [2024-11-11 16:07:19,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63389 to 62370. [2024-11-11 16:07:19,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62370 states, 62369 states have (on average 1.1193701999390724) internal successors, (69814), 62369 states have internal predecessors, (69814), 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) [2024-11-11 16:07:19,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62370 states to 62370 states and 69814 transitions. [2024-11-11 16:07:19,699 INFO L78 Accepts]: Start accepts. Automaton has 62370 states and 69814 transitions. Word has length 348 [2024-11-11 16:07:19,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 16:07:19,699 INFO L471 AbstractCegarLoop]: Abstraction has 62370 states and 69814 transitions. [2024-11-11 16:07:19,700 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 87.33333333333333) internal successors, (262), 3 states have internal predecessors, (262), 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) [2024-11-11 16:07:19,700 INFO L276 IsEmpty]: Start isEmpty. Operand 62370 states and 69814 transitions. [2024-11-11 16:07:19,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 349 [2024-11-11 16:07:19,733 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 16:07:19,733 INFO L218 NwaCegarLoop]: trace histogram [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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-11 16:07:19,746 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-11 16:07:19,934 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-11-11 16:07:19,934 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 16:07:19,935 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 16:07:19,935 INFO L85 PathProgramCache]: Analyzing trace with hash 852631981, now seen corresponding path program 1 times [2024-11-11 16:07:19,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 16:07:19,935 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1905480288] [2024-11-11 16:07:19,935 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 16:07:19,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 16:07:20,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 16:07:20,296 INFO L134 CoverageAnalysis]: Checked inductivity of 238 backedges. 173 proven. 0 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2024-11-11 16:07:20,296 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 16:07:20,296 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1905480288] [2024-11-11 16:07:20,296 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1905480288] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 16:07:20,296 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 16:07:20,296 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-11 16:07:20,296 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2138454231] [2024-11-11 16:07:20,296 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 16:07:20,297 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-11 16:07:20,297 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 16:07:20,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-11 16:07:20,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-11 16:07:20,298 INFO L87 Difference]: Start difference. First operand 62370 states and 69814 transitions. Second operand has 3 states, 3 states have (on average 95.0) internal successors, (285), 2 states have internal predecessors, (285), 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) [2024-11-11 16:07:21,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 16:07:21,079 INFO L93 Difference]: Finished difference Result 117113 states and 130970 transitions. [2024-11-11 16:07:21,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-11 16:07:21,079 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 95.0) internal successors, (285), 2 states have internal predecessors, (285), 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 348 [2024-11-11 16:07:21,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 16:07:21,144 INFO L225 Difference]: With dead ends: 117113 [2024-11-11 16:07:21,145 INFO L226 Difference]: Without dead ends: 54745 [2024-11-11 16:07:21,186 INFO L434 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 [2024-11-11 16:07:21,186 INFO L435 NwaCegarLoop]: 31 mSDtfsCounter, 244 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 323 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 244 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 349 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 323 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-11 16:07:21,187 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [244 Valid, 31 Invalid, 349 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 323 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-11 16:07:21,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54745 states. [2024-11-11 16:07:22,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54745 to 54339. [2024-11-11 16:07:22,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54339 states, 54338 states have (on average 1.1094445875814347) internal successors, (60285), 54338 states have internal predecessors, (60285), 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) [2024-11-11 16:07:22,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54339 states to 54339 states and 60285 transitions. [2024-11-11 16:07:22,363 INFO L78 Accepts]: Start accepts. Automaton has 54339 states and 60285 transitions. Word has length 348 [2024-11-11 16:07:22,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 16:07:22,363 INFO L471 AbstractCegarLoop]: Abstraction has 54339 states and 60285 transitions. [2024-11-11 16:07:22,363 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 95.0) internal successors, (285), 2 states have internal predecessors, (285), 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) [2024-11-11 16:07:22,363 INFO L276 IsEmpty]: Start isEmpty. Operand 54339 states and 60285 transitions. [2024-11-11 16:07:22,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 380 [2024-11-11 16:07:22,393 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 16:07:22,394 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-11 16:07:22,394 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-11 16:07:22,394 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 16:07:22,394 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 16:07:22,394 INFO L85 PathProgramCache]: Analyzing trace with hash 822104174, now seen corresponding path program 1 times [2024-11-11 16:07:22,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 16:07:22,395 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [867057724] [2024-11-11 16:07:22,395 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 16:07:22,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 16:07:22,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 16:07:22,969 INFO L134 CoverageAnalysis]: Checked inductivity of 344 backedges. 263 proven. 0 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2024-11-11 16:07:22,970 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 16:07:22,970 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [867057724] [2024-11-11 16:07:22,970 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [867057724] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 16:07:22,970 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 16:07:22,970 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-11 16:07:22,970 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [365331052] [2024-11-11 16:07:22,970 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 16:07:22,971 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-11 16:07:22,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 16:07:22,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-11 16:07:22,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-11 16:07:22,972 INFO L87 Difference]: Start difference. First operand 54339 states and 60285 transitions. Second operand has 4 states, 4 states have (on average 78.5) internal successors, (314), 3 states have internal predecessors, (314), 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) [2024-11-11 16:07:24,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 16:07:24,542 INFO L93 Difference]: Finished difference Result 114782 states and 127194 transitions. [2024-11-11 16:07:24,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-11 16:07:24,542 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 78.5) internal successors, (314), 3 states have internal predecessors, (314), 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 [2024-11-11 16:07:24,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 16:07:24,650 INFO L225 Difference]: With dead ends: 114782 [2024-11-11 16:07:24,651 INFO L226 Difference]: Without dead ends: 60445 [2024-11-11 16:07:24,701 INFO L434 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 [2024-11-11 16:07:24,702 INFO L435 NwaCegarLoop]: 75 mSDtfsCounter, 455 mSDsluCounter, 245 mSDsCounter, 0 mSdLazyCounter, 736 mSolverCounterSat, 123 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 455 SdHoareTripleChecker+Valid, 320 SdHoareTripleChecker+Invalid, 859 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 123 IncrementalHoareTripleChecker+Valid, 736 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-11 16:07:24,702 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [455 Valid, 320 Invalid, 859 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [123 Valid, 736 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-11 16:07:24,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60445 states. [2024-11-11 16:07:25,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60445 to 54938. [2024-11-11 16:07:25,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54938 states, 54937 states have (on average 1.1063945974479859) internal successors, (60782), 54937 states have internal predecessors, (60782), 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) [2024-11-11 16:07:25,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54938 states to 54938 states and 60782 transitions. [2024-11-11 16:07:25,841 INFO L78 Accepts]: Start accepts. Automaton has 54938 states and 60782 transitions. Word has length 379 [2024-11-11 16:07:25,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 16:07:25,841 INFO L471 AbstractCegarLoop]: Abstraction has 54938 states and 60782 transitions. [2024-11-11 16:07:25,841 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 78.5) internal successors, (314), 3 states have internal predecessors, (314), 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) [2024-11-11 16:07:25,842 INFO L276 IsEmpty]: Start isEmpty. Operand 54938 states and 60782 transitions. [2024-11-11 16:07:25,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 416 [2024-11-11 16:07:25,877 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 16:07:25,877 INFO L218 NwaCegarLoop]: trace histogram [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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 16:07:25,878 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-11 16:07:25,878 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 16:07:25,878 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 16:07:25,878 INFO L85 PathProgramCache]: Analyzing trace with hash 1347996494, now seen corresponding path program 1 times [2024-11-11 16:07:25,878 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 16:07:25,879 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1003363359] [2024-11-11 16:07:25,879 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 16:07:25,879 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 16:07:25,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 16:07:26,689 INFO L134 CoverageAnalysis]: Checked inductivity of 330 backedges. 325 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-11 16:07:26,690 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 16:07:26,690 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1003363359] [2024-11-11 16:07:26,690 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1003363359] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 16:07:26,690 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 16:07:26,690 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-11 16:07:26,690 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1682851345] [2024-11-11 16:07:26,690 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 16:07:26,691 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-11 16:07:26,691 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 16:07:26,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-11 16:07:26,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-11 16:07:26,692 INFO L87 Difference]: Start difference. First operand 54938 states and 60782 transitions. Second operand has 4 states, 4 states have (on average 102.75) internal successors, (411), 3 states have internal predecessors, (411), 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) [2024-11-11 16:07:27,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 16:07:27,533 INFO L93 Difference]: Finished difference Result 110297 states and 122029 transitions. [2024-11-11 16:07:27,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-11 16:07:27,534 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 102.75) internal successors, (411), 3 states have internal predecessors, (411), 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 415 [2024-11-11 16:07:27,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 16:07:27,624 INFO L225 Difference]: With dead ends: 110297 [2024-11-11 16:07:27,624 INFO L226 Difference]: Without dead ends: 54143 [2024-11-11 16:07:27,670 INFO L434 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 [2024-11-11 16:07:27,670 INFO L435 NwaCegarLoop]: 34 mSDtfsCounter, 529 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 574 mSolverCounterSat, 161 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 529 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 735 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 161 IncrementalHoareTripleChecker+Valid, 574 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-11 16:07:27,671 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [529 Valid, 44 Invalid, 735 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [161 Valid, 574 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-11 16:07:27,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54143 states. [2024-11-11 16:07:28,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54143 to 50461. [2024-11-11 16:07:28,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50461 states, 50460 states have (on average 1.0674197384066588) internal successors, (53862), 50460 states have internal predecessors, (53862), 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) [2024-11-11 16:07:28,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50461 states to 50461 states and 53862 transitions. [2024-11-11 16:07:28,767 INFO L78 Accepts]: Start accepts. Automaton has 50461 states and 53862 transitions. Word has length 415 [2024-11-11 16:07:28,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 16:07:28,768 INFO L471 AbstractCegarLoop]: Abstraction has 50461 states and 53862 transitions. [2024-11-11 16:07:28,768 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 102.75) internal successors, (411), 3 states have internal predecessors, (411), 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) [2024-11-11 16:07:28,768 INFO L276 IsEmpty]: Start isEmpty. Operand 50461 states and 53862 transitions. [2024-11-11 16:07:28,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 428 [2024-11-11 16:07:28,810 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 16:07:28,810 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 16:07:28,810 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-11 16:07:28,811 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 16:07:28,811 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 16:07:28,811 INFO L85 PathProgramCache]: Analyzing trace with hash -86044111, now seen corresponding path program 1 times [2024-11-11 16:07:28,811 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 16:07:28,811 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1348127628] [2024-11-11 16:07:28,812 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 16:07:28,812 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 16:07:28,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 16:07:29,473 INFO L134 CoverageAnalysis]: Checked inductivity of 522 backedges. 329 proven. 0 refuted. 0 times theorem prover too weak. 193 trivial. 0 not checked. [2024-11-11 16:07:29,474 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 16:07:29,474 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1348127628] [2024-11-11 16:07:29,474 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1348127628] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 16:07:29,474 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 16:07:29,474 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-11 16:07:29,475 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1644699777] [2024-11-11 16:07:29,475 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 16:07:29,476 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-11 16:07:29,476 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 16:07:29,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-11 16:07:29,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-11 16:07:29,477 INFO L87 Difference]: Start difference. First operand 50461 states and 53862 transitions. Second operand has 3 states, 3 states have (on average 104.66666666666667) internal successors, (314), 3 states have internal predecessors, (314), 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) [2024-11-11 16:07:30,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 16:07:30,182 INFO L93 Difference]: Finished difference Result 100097 states and 106699 transitions. [2024-11-11 16:07:30,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-11 16:07:30,183 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 104.66666666666667) internal successors, (314), 3 states have internal predecessors, (314), 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 427 [2024-11-11 16:07:30,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 16:07:30,243 INFO L225 Difference]: With dead ends: 100097 [2024-11-11 16:07:30,243 INFO L226 Difference]: Without dead ends: 48420 [2024-11-11 16:07:30,278 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-11 16:07:30,279 INFO L435 NwaCegarLoop]: 289 mSDtfsCounter, 210 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 506 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 210 SdHoareTripleChecker+Valid, 304 SdHoareTripleChecker+Invalid, 570 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 506 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-11 16:07:30,279 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [210 Valid, 304 Invalid, 570 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 506 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-11 16:07:30,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48420 states. [2024-11-11 16:07:30,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48420 to 41919. [2024-11-11 16:07:30,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41919 states, 41918 states have (on average 1.0516961687103392) internal successors, (44085), 41918 states have internal predecessors, (44085), 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) [2024-11-11 16:07:30,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41919 states to 41919 states and 44085 transitions. [2024-11-11 16:07:30,904 INFO L78 Accepts]: Start accepts. Automaton has 41919 states and 44085 transitions. Word has length 427 [2024-11-11 16:07:30,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 16:07:30,904 INFO L471 AbstractCegarLoop]: Abstraction has 41919 states and 44085 transitions. [2024-11-11 16:07:30,904 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 104.66666666666667) internal successors, (314), 3 states have internal predecessors, (314), 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) [2024-11-11 16:07:30,904 INFO L276 IsEmpty]: Start isEmpty. Operand 41919 states and 44085 transitions. [2024-11-11 16:07:30,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 460 [2024-11-11 16:07:30,930 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 16:07:30,930 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 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, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-11 16:07:30,931 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-11 16:07:30,931 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 16:07:30,931 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 16:07:30,931 INFO L85 PathProgramCache]: Analyzing trace with hash -499449792, now seen corresponding path program 1 times [2024-11-11 16:07:30,931 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 16:07:30,932 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [244374665] [2024-11-11 16:07:30,932 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 16:07:30,932 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 16:07:31,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 16:07:31,552 INFO L134 CoverageAnalysis]: Checked inductivity of 736 backedges. 358 proven. 0 refuted. 0 times theorem prover too weak. 378 trivial. 0 not checked. [2024-11-11 16:07:31,553 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 16:07:31,553 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [244374665] [2024-11-11 16:07:31,553 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [244374665] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 16:07:31,553 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 16:07:31,553 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-11 16:07:31,553 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [336533098] [2024-11-11 16:07:31,554 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 16:07:31,554 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-11 16:07:31,554 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 16:07:31,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-11 16:07:31,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-11 16:07:31,555 INFO L87 Difference]: Start difference. First operand 41919 states and 44085 transitions. Second operand has 4 states, 4 states have (on average 69.75) internal successors, (279), 3 states have internal predecessors, (279), 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) [2024-11-11 16:07:32,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 16:07:32,054 INFO L93 Difference]: Finished difference Result 82616 states and 86910 transitions. [2024-11-11 16:07:32,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-11 16:07:32,055 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 69.75) internal successors, (279), 3 states have internal predecessors, (279), 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 459 [2024-11-11 16:07:32,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 16:07:32,109 INFO L225 Difference]: With dead ends: 82616 [2024-11-11 16:07:32,110 INFO L226 Difference]: Without dead ends: 40699 [2024-11-11 16:07:32,139 INFO L434 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 [2024-11-11 16:07:32,140 INFO L435 NwaCegarLoop]: 29 mSDtfsCounter, 275 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 280 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 275 SdHoareTripleChecker+Valid, 29 SdHoareTripleChecker+Invalid, 303 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 280 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-11 16:07:32,141 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [275 Valid, 29 Invalid, 303 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 280 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-11 16:07:32,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40699 states. [2024-11-11 16:07:32,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40699 to 39684. [2024-11-11 16:07:32,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39684 states, 39683 states have (on average 1.0527177884736536) internal successors, (41775), 39683 states have internal predecessors, (41775), 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) [2024-11-11 16:07:33,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39684 states to 39684 states and 41775 transitions. [2024-11-11 16:07:33,068 INFO L78 Accepts]: Start accepts. Automaton has 39684 states and 41775 transitions. Word has length 459 [2024-11-11 16:07:33,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 16:07:33,068 INFO L471 AbstractCegarLoop]: Abstraction has 39684 states and 41775 transitions. [2024-11-11 16:07:33,069 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 69.75) internal successors, (279), 3 states have internal predecessors, (279), 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) [2024-11-11 16:07:33,069 INFO L276 IsEmpty]: Start isEmpty. Operand 39684 states and 41775 transitions. [2024-11-11 16:07:33,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 461 [2024-11-11 16:07:33,094 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 16:07:33,094 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 5, 5, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 16:07:33,095 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-11 16:07:33,095 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 16:07:33,095 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 16:07:33,095 INFO L85 PathProgramCache]: Analyzing trace with hash -363069504, now seen corresponding path program 1 times [2024-11-11 16:07:33,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 16:07:33,096 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1325676984] [2024-11-11 16:07:33,096 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 16:07:33,096 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 16:07:33,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 16:07:33,497 INFO L134 CoverageAnalysis]: Checked inductivity of 517 backedges. 289 proven. 0 refuted. 0 times theorem prover too weak. 228 trivial. 0 not checked. [2024-11-11 16:07:33,498 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 16:07:33,498 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1325676984] [2024-11-11 16:07:33,499 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1325676984] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 16:07:33,499 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 16:07:33,500 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-11 16:07:33,500 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1924143521] [2024-11-11 16:07:33,500 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 16:07:33,502 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-11 16:07:33,502 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 16:07:33,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-11 16:07:33,503 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-11 16:07:33,503 INFO L87 Difference]: Start difference. First operand 39684 states and 41775 transitions. Second operand has 3 states, 3 states have (on average 105.66666666666667) internal successors, (317), 2 states have internal predecessors, (317), 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) [2024-11-11 16:07:34,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 16:07:34,055 INFO L93 Difference]: Finished difference Result 116201 states and 122368 transitions. [2024-11-11 16:07:34,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-11 16:07:34,056 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 105.66666666666667) internal successors, (317), 2 states have internal predecessors, (317), 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 460 [2024-11-11 16:07:34,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 16:07:34,159 INFO L225 Difference]: With dead ends: 116201 [2024-11-11 16:07:34,159 INFO L226 Difference]: Without dead ends: 76519 [2024-11-11 16:07:34,186 INFO L434 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 [2024-11-11 16:07:34,187 INFO L435 NwaCegarLoop]: 311 mSDtfsCounter, 175 mSDsluCounter, 299 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 175 SdHoareTripleChecker+Valid, 610 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-11 16:07:34,187 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [175 Valid, 610 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-11 16:07:34,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76519 states. [2024-11-11 16:07:35,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76519 to 76313. [2024-11-11 16:07:35,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76313 states, 76312 states have (on average 1.053386099171821) internal successors, (80386), 76312 states have internal predecessors, (80386), 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) [2024-11-11 16:07:35,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76313 states to 76313 states and 80386 transitions. [2024-11-11 16:07:35,371 INFO L78 Accepts]: Start accepts. Automaton has 76313 states and 80386 transitions. Word has length 460 [2024-11-11 16:07:35,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 16:07:35,371 INFO L471 AbstractCegarLoop]: Abstraction has 76313 states and 80386 transitions. [2024-11-11 16:07:35,371 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 105.66666666666667) internal successors, (317), 2 states have internal predecessors, (317), 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) [2024-11-11 16:07:35,371 INFO L276 IsEmpty]: Start isEmpty. Operand 76313 states and 80386 transitions. [2024-11-11 16:07:35,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 462 [2024-11-11 16:07:35,401 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 16:07:35,401 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 16:07:35,401 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-11 16:07:35,401 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 16:07:35,402 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 16:07:35,402 INFO L85 PathProgramCache]: Analyzing trace with hash 1874356854, now seen corresponding path program 1 times [2024-11-11 16:07:35,402 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 16:07:35,402 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1171836489] [2024-11-11 16:07:35,402 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 16:07:35,402 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 16:07:35,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 16:07:36,388 INFO L134 CoverageAnalysis]: Checked inductivity of 588 backedges. 489 proven. 18 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2024-11-11 16:07:36,389 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 16:07:36,389 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1171836489] [2024-11-11 16:07:36,389 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1171836489] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-11 16:07:36,389 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1187916591] [2024-11-11 16:07:36,389 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 16:07:36,389 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 16:07:36,389 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 16:07:36,390 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-11 16:07:36,391 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-11 16:07:36,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 16:07:36,750 INFO L256 TraceCheckSpWp]: Trace formula consists of 821 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-11 16:07:36,761 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-11 16:07:36,942 INFO L134 CoverageAnalysis]: Checked inductivity of 588 backedges. 386 proven. 0 refuted. 0 times theorem prover too weak. 202 trivial. 0 not checked. [2024-11-11 16:07:36,942 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-11 16:07:36,943 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1187916591] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 16:07:36,943 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-11 16:07:36,943 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2024-11-11 16:07:36,943 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1295537396] [2024-11-11 16:07:36,943 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 16:07:36,944 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-11 16:07:36,944 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 16:07:36,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-11 16:07:36,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-11 16:07:36,945 INFO L87 Difference]: Start difference. First operand 76313 states and 80386 transitions. Second operand has 3 states, 3 states have (on average 105.66666666666667) internal successors, (317), 2 states have internal predecessors, (317), 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) [2024-11-11 16:07:38,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 16:07:38,135 INFO L93 Difference]: Finished difference Result 222402 states and 234438 transitions. [2024-11-11 16:07:38,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-11 16:07:38,136 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 105.66666666666667) internal successors, (317), 2 states have internal predecessors, (317), 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 461 [2024-11-11 16:07:38,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 16:07:38,364 INFO L225 Difference]: With dead ends: 222402 [2024-11-11 16:07:38,364 INFO L226 Difference]: Without dead ends: 146091 [2024-11-11 16:07:38,446 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 465 GetRequests, 461 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-11 16:07:38,449 INFO L435 NwaCegarLoop]: 245 mSDtfsCounter, 159 mSDsluCounter, 227 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 472 SdHoareTripleChecker+Invalid, 165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-11 16:07:38,449 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [159 Valid, 472 Invalid, 165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-11 16:07:38,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146091 states. [2024-11-11 16:07:40,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146091 to 145673. [2024-11-11 16:07:40,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 145673 states, 145672 states have (on average 1.0539499697951562) internal successors, (153531), 145672 states have internal predecessors, (153531), 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) [2024-11-11 16:07:40,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145673 states to 145673 states and 153531 transitions. [2024-11-11 16:07:40,904 INFO L78 Accepts]: Start accepts. Automaton has 145673 states and 153531 transitions. Word has length 461 [2024-11-11 16:07:40,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 16:07:40,904 INFO L471 AbstractCegarLoop]: Abstraction has 145673 states and 153531 transitions. [2024-11-11 16:07:40,904 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 105.66666666666667) internal successors, (317), 2 states have internal predecessors, (317), 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) [2024-11-11 16:07:40,904 INFO L276 IsEmpty]: Start isEmpty. Operand 145673 states and 153531 transitions. [2024-11-11 16:07:40,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 467 [2024-11-11 16:07:40,940 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 16:07:40,940 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-11 16:07:40,954 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-11 16:07:41,141 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 16:07:41,141 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 16:07:41,142 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 16:07:41,142 INFO L85 PathProgramCache]: Analyzing trace with hash 623806828, now seen corresponding path program 1 times [2024-11-11 16:07:41,143 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 16:07:41,143 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1017628867] [2024-11-11 16:07:41,143 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 16:07:41,143 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 16:07:41,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 16:07:42,540 INFO L134 CoverageAnalysis]: Checked inductivity of 479 backedges. 279 proven. 200 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 16:07:42,541 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 16:07:42,541 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1017628867] [2024-11-11 16:07:42,541 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1017628867] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-11 16:07:42,541 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [841380249] [2024-11-11 16:07:42,541 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 16:07:42,541 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 16:07:42,542 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 16:07:42,543 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-11 16:07:42,544 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-11 16:07:43,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 16:07:43,144 INFO L256 TraceCheckSpWp]: Trace formula consists of 696 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-11 16:07:43,162 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-11 16:07:44,981 INFO L134 CoverageAnalysis]: Checked inductivity of 479 backedges. 0 proven. 279 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked. [2024-11-11 16:07:44,985 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-11 16:07:47,356 INFO L134 CoverageAnalysis]: Checked inductivity of 479 backedges. 0 proven. 279 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked. [2024-11-11 16:07:47,356 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [841380249] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-11 16:07:47,356 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-11 16:07:47,357 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 3, 3] total 7 [2024-11-11 16:07:47,357 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1946645973] [2024-11-11 16:07:47,357 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-11 16:07:47,360 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-11 16:07:47,360 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 16:07:47,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-11 16:07:47,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-11 16:07:47,361 INFO L87 Difference]: Start difference. First operand 145673 states and 153531 transitions. Second operand has 8 states, 8 states have (on average 115.0) internal successors, (920), 7 states have internal predecessors, (920), 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) [2024-11-11 16:07:55,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 16:07:55,643 INFO L93 Difference]: Finished difference Result 739652 states and 781904 transitions. [2024-11-11 16:07:55,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-11-11 16:07:55,643 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 115.0) internal successors, (920), 7 states have internal predecessors, (920), 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 466 [2024-11-11 16:07:55,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 16:07:57,201 INFO L225 Difference]: With dead ends: 739652 [2024-11-11 16:07:57,201 INFO L226 Difference]: Without dead ends: 593981 [2024-11-11 16:07:57,447 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 955 GetRequests, 928 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 202 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=186, Invalid=626, Unknown=0, NotChecked=0, Total=812 [2024-11-11 16:07:57,448 INFO L435 NwaCegarLoop]: 49 mSDtfsCounter, 5342 mSDsluCounter, 332 mSDsCounter, 0 mSdLazyCounter, 4613 mSolverCounterSat, 1352 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5342 SdHoareTripleChecker+Valid, 381 SdHoareTripleChecker+Invalid, 5965 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1352 IncrementalHoareTripleChecker+Valid, 4613 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2024-11-11 16:07:57,449 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5342 Valid, 381 Invalid, 5965 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1352 Valid, 4613 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2024-11-11 16:07:57,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 593981 states.