./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem18_label00.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3289d67d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/eca-rers2012/Problem18_label00.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 0d78cbd4eebf62491dd2c9ff66f9185f8b00b77652f31fd24e8923f69bec5979 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 04:21:26,109 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 04:21:26,188 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-16 04:21:26,194 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 04:21:26,195 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 04:21:26,231 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 04:21:26,232 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 04:21:26,232 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 04:21:26,233 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-16 04:21:26,233 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-16 04:21:26,234 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 04:21:26,234 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 04:21:26,235 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 04:21:26,237 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 04:21:26,237 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 04:21:26,238 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 04:21:26,238 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 04:21:26,238 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-16 04:21:26,239 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 04:21:26,239 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-16 04:21:26,239 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 04:21:26,244 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 04:21:26,244 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 04:21:26,244 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 04:21:26,244 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 04:21:26,245 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-16 04:21:26,245 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 04:21:26,245 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 04:21:26,245 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 04:21:26,246 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 04:21:26,246 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-16 04:21:26,246 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 04:21:26,246 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 04:21:26,247 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 04:21:26,247 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 04:21:26,250 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 04:21:26,250 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 04:21:26,250 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 04:21:26,251 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 04:21:26,251 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 04:21:26,251 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 04:21:26,252 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 04:21:26,252 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0d78cbd4eebf62491dd2c9ff66f9185f8b00b77652f31fd24e8923f69bec5979 [2024-11-16 04:21:26,537 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 04:21:26,567 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 04:21:26,573 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 04:21:26,576 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 04:21:26,576 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 04:21:26,578 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem18_label00.c [2024-11-16 04:21:28,047 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 04:21:28,404 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 04:21:28,405 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem18_label00.c [2024-11-16 04:21:28,437 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f3f7e261d/b7a3e148d899449698b3514608f7f5de/FLAG8b6d4953b [2024-11-16 04:21:28,614 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f3f7e261d/b7a3e148d899449698b3514608f7f5de [2024-11-16 04:21:28,616 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 04:21:28,617 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 04:21:28,619 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 04:21:28,619 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 04:21:28,623 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 04:21:28,624 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 04:21:28" (1/1) ... [2024-11-16 04:21:28,625 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@25054e99 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:21:28, skipping insertion in model container [2024-11-16 04:21:28,625 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 04:21:28" (1/1) ... [2024-11-16 04:21:28,714 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 04:21:28,937 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/Problem18_label00.c[2299,2312] [2024-11-16 04:21:29,736 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 04:21:29,748 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 04:21:29,771 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/Problem18_label00.c[2299,2312] [2024-11-16 04:21:30,026 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 04:21:30,049 INFO L204 MainTranslator]: Completed translation [2024-11-16 04:21:30,050 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:21:30 WrapperNode [2024-11-16 04:21:30,050 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 04:21:30,051 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 04:21:30,051 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 04:21:30,051 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 04:21:30,058 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:21:30" (1/1) ... [2024-11-16 04:21:30,145 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:21:30" (1/1) ... [2024-11-16 04:21:30,342 INFO L138 Inliner]: procedures = 16, calls = 10, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 4134 [2024-11-16 04:21:30,343 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 04:21:30,344 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 04:21:30,344 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 04:21:30,344 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 04:21:30,355 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:21:30" (1/1) ... [2024-11-16 04:21:30,355 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:21:30" (1/1) ... [2024-11-16 04:21:30,381 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:21:30" (1/1) ... [2024-11-16 04:21:30,456 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-16 04:21:30,456 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:21:30" (1/1) ... [2024-11-16 04:21:30,456 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:21:30" (1/1) ... [2024-11-16 04:21:30,589 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:21:30" (1/1) ... [2024-11-16 04:21:30,600 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:21:30" (1/1) ... [2024-11-16 04:21:30,613 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:21:30" (1/1) ... [2024-11-16 04:21:30,623 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:21:30" (1/1) ... [2024-11-16 04:21:30,651 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 04:21:30,654 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 04:21:30,654 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 04:21:30,654 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 04:21:30,655 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:21:30" (1/1) ... [2024-11-16 04:21:30,661 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 04:21:30,677 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 04:21:30,693 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-16 04:21:30,699 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-16 04:21:30,733 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 04:21:30,733 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-16 04:21:30,733 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 04:21:30,733 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 04:21:30,799 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 04:21:30,801 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 04:21:34,144 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L1647: havoc calculate_output_#t~ret8#1; [2024-11-16 04:21:34,145 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L3060: havoc calculate_output2_#t~ret9#1; [2024-11-16 04:21:34,277 INFO L? ?]: Removed 639 outVars from TransFormulas that were not future-live. [2024-11-16 04:21:34,277 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 04:21:34,320 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 04:21:34,321 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 04:21:34,322 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 04:21:34 BoogieIcfgContainer [2024-11-16 04:21:34,322 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 04:21:34,324 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 04:21:34,324 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 04:21:34,327 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 04:21:34,327 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 04:21:28" (1/3) ... [2024-11-16 04:21:34,328 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22d3671f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 04:21:34, skipping insertion in model container [2024-11-16 04:21:34,328 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:21:30" (2/3) ... [2024-11-16 04:21:34,329 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22d3671f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 04:21:34, skipping insertion in model container [2024-11-16 04:21:34,329 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 04:21:34" (3/3) ... [2024-11-16 04:21:34,330 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem18_label00.c [2024-11-16 04:21:34,346 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 04:21:34,347 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-16 04:21:34,437 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 04:21:34,445 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;@4f6c43ca, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 04:21:34,445 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-16 04:21:34,453 INFO L276 IsEmpty]: Start isEmpty. Operand has 760 states, 758 states have (on average 1.9089709762532983) internal successors, (1447), 759 states have internal predecessors, (1447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:21:34,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-11-16 04:21:34,460 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:21:34,461 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:21:34,461 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:21:34,466 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:21:34,466 INFO L85 PathProgramCache]: Analyzing trace with hash 1810395047, now seen corresponding path program 1 times [2024-11-16 04:21:34,475 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:21:34,475 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1100606831] [2024-11-16 04:21:34,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:21:34,476 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:21:34,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:21:34,722 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 04:21:34,723 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:21:34,723 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1100606831] [2024-11-16 04:21:34,724 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1100606831] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:21:34,724 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:21:34,724 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 04:21:34,726 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [924611847] [2024-11-16 04:21:34,726 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:21:34,730 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:21:34,731 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:21:34,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:21:34,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:21:34,760 INFO L87 Difference]: Start difference. First operand has 760 states, 758 states have (on average 1.9089709762532983) internal successors, (1447), 759 states have internal predecessors, (1447), 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 7.0) internal successors, (21), 2 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:21:37,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:21:37,784 INFO L93 Difference]: Finished difference Result 2211 states and 4272 transitions. [2024-11-16 04:21:37,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:21:37,786 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 2 states have internal predecessors, (21), 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 21 [2024-11-16 04:21:37,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:21:37,812 INFO L225 Difference]: With dead ends: 2211 [2024-11-16 04:21:37,813 INFO L226 Difference]: Without dead ends: 1387 [2024-11-16 04:21:37,818 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:21:37,821 INFO L432 NwaCegarLoop]: 423 mSDtfsCounter, 700 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 2232 mSolverCounterSat, 530 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 700 SdHoareTripleChecker+Valid, 434 SdHoareTripleChecker+Invalid, 2762 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 530 IncrementalHoareTripleChecker+Valid, 2232 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2024-11-16 04:21:37,822 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [700 Valid, 434 Invalid, 2762 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [530 Valid, 2232 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2024-11-16 04:21:37,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1387 states. [2024-11-16 04:21:37,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1387 to 1387. [2024-11-16 04:21:37,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1387 states, 1386 states have (on average 1.65007215007215) internal successors, (2287), 1386 states have internal predecessors, (2287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:21:37,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1387 states to 1387 states and 2287 transitions. [2024-11-16 04:21:37,944 INFO L78 Accepts]: Start accepts. Automaton has 1387 states and 2287 transitions. Word has length 21 [2024-11-16 04:21:37,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:21:37,945 INFO L471 AbstractCegarLoop]: Abstraction has 1387 states and 2287 transitions. [2024-11-16 04:21:37,945 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 2 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:21:37,945 INFO L276 IsEmpty]: Start isEmpty. Operand 1387 states and 2287 transitions. [2024-11-16 04:21:37,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-11-16 04:21:37,948 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:21:37,948 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-16 04:21:37,948 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 04:21:37,949 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:21:37,949 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:21:37,949 INFO L85 PathProgramCache]: Analyzing trace with hash -677414861, now seen corresponding path program 1 times [2024-11-16 04:21:37,949 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:21:37,950 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1808272181] [2024-11-16 04:21:37,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:21:37,950 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:21:38,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:21:38,195 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 04:21:38,196 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:21:38,196 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1808272181] [2024-11-16 04:21:38,196 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1808272181] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:21:38,198 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:21:38,198 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 04:21:38,198 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [734845750] [2024-11-16 04:21:38,199 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:21:38,200 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:21:38,201 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:21:38,201 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:21:38,202 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:21:38,202 INFO L87 Difference]: Start difference. First operand 1387 states and 2287 transitions. Second operand has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 2 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:21:40,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:21:40,958 INFO L93 Difference]: Finished difference Result 4154 states and 6855 transitions. [2024-11-16 04:21:40,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:21:40,959 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 2 states have internal predecessors, (88), 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 88 [2024-11-16 04:21:40,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:21:40,969 INFO L225 Difference]: With dead ends: 4154 [2024-11-16 04:21:40,969 INFO L226 Difference]: Without dead ends: 2769 [2024-11-16 04:21:40,971 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:21:40,972 INFO L432 NwaCegarLoop]: 528 mSDtfsCounter, 713 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 1701 mSolverCounterSat, 918 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 713 SdHoareTripleChecker+Valid, 534 SdHoareTripleChecker+Invalid, 2619 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 918 IncrementalHoareTripleChecker+Valid, 1701 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2024-11-16 04:21:40,973 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [713 Valid, 534 Invalid, 2619 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [918 Valid, 1701 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2024-11-16 04:21:40,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2769 states. [2024-11-16 04:21:41,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2769 to 2769. [2024-11-16 04:21:41,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2769 states, 2768 states have (on average 1.4039017341040463) internal successors, (3886), 2768 states have internal predecessors, (3886), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:21:41,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2769 states to 2769 states and 3886 transitions. [2024-11-16 04:21:41,028 INFO L78 Accepts]: Start accepts. Automaton has 2769 states and 3886 transitions. Word has length 88 [2024-11-16 04:21:41,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:21:41,030 INFO L471 AbstractCegarLoop]: Abstraction has 2769 states and 3886 transitions. [2024-11-16 04:21:41,030 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 2 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:21:41,030 INFO L276 IsEmpty]: Start isEmpty. Operand 2769 states and 3886 transitions. [2024-11-16 04:21:41,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-11-16 04:21:41,034 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:21:41,034 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-16 04:21:41,035 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-16 04:21:41,035 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:21:41,035 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:21:41,036 INFO L85 PathProgramCache]: Analyzing trace with hash -896591271, now seen corresponding path program 1 times [2024-11-16 04:21:41,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:21:41,036 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [554594298] [2024-11-16 04:21:41,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:21:41,036 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:21:41,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:21:41,189 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 04:21:41,189 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:21:41,189 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [554594298] [2024-11-16 04:21:41,190 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [554594298] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:21:41,190 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:21:41,190 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 04:21:41,190 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1492753115] [2024-11-16 04:21:41,190 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:21:41,190 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:21:41,191 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:21:41,191 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:21:41,191 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:21:41,192 INFO L87 Difference]: Start difference. First operand 2769 states and 3886 transitions. Second operand has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 2 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:21:43,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:21:43,699 INFO L93 Difference]: Finished difference Result 8303 states and 11654 transitions. [2024-11-16 04:21:43,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:21:43,700 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 2 states have internal predecessors, (89), 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 89 [2024-11-16 04:21:43,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:21:43,719 INFO L225 Difference]: With dead ends: 8303 [2024-11-16 04:21:43,719 INFO L226 Difference]: Without dead ends: 5536 [2024-11-16 04:21:43,724 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:21:43,725 INFO L432 NwaCegarLoop]: 430 mSDtfsCounter, 710 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 1994 mSolverCounterSat, 672 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 710 SdHoareTripleChecker+Valid, 438 SdHoareTripleChecker+Invalid, 2666 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 672 IncrementalHoareTripleChecker+Valid, 1994 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-11-16 04:21:43,726 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [710 Valid, 438 Invalid, 2666 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [672 Valid, 1994 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-11-16 04:21:43,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5536 states. [2024-11-16 04:21:43,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5536 to 5533. [2024-11-16 04:21:43,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5533 states, 5532 states have (on average 1.265365148228489) internal successors, (7000), 5532 states have internal predecessors, (7000), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:21:43,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5533 states to 5533 states and 7000 transitions. [2024-11-16 04:21:43,829 INFO L78 Accepts]: Start accepts. Automaton has 5533 states and 7000 transitions. Word has length 89 [2024-11-16 04:21:43,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:21:43,830 INFO L471 AbstractCegarLoop]: Abstraction has 5533 states and 7000 transitions. [2024-11-16 04:21:43,831 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 2 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:21:43,831 INFO L276 IsEmpty]: Start isEmpty. Operand 5533 states and 7000 transitions. [2024-11-16 04:21:43,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-11-16 04:21:43,836 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:21:43,836 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-16 04:21:43,837 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-16 04:21:43,837 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:21:43,837 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:21:43,838 INFO L85 PathProgramCache]: Analyzing trace with hash -2018805350, now seen corresponding path program 1 times [2024-11-16 04:21:43,838 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:21:43,838 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2016590609] [2024-11-16 04:21:43,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:21:43,841 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:21:43,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:21:43,987 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 04:21:43,988 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:21:43,988 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2016590609] [2024-11-16 04:21:43,988 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2016590609] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:21:43,988 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:21:43,989 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 04:21:43,989 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [649351715] [2024-11-16 04:21:43,989 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:21:43,989 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:21:43,990 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:21:43,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:21:43,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:21:43,992 INFO L87 Difference]: Start difference. First operand 5533 states and 7000 transitions. Second operand has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:21:46,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:21:46,409 INFO L93 Difference]: Finished difference Result 16592 states and 20994 transitions. [2024-11-16 04:21:46,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:21:46,410 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 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 115 [2024-11-16 04:21:46,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:21:46,445 INFO L225 Difference]: With dead ends: 16592 [2024-11-16 04:21:46,445 INFO L226 Difference]: Without dead ends: 11061 [2024-11-16 04:21:46,454 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:21:46,455 INFO L432 NwaCegarLoop]: 1288 mSDtfsCounter, 678 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 1955 mSolverCounterSat, 766 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 678 SdHoareTripleChecker+Valid, 1297 SdHoareTripleChecker+Invalid, 2721 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 766 IncrementalHoareTripleChecker+Valid, 1955 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-11-16 04:21:46,456 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [678 Valid, 1297 Invalid, 2721 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [766 Valid, 1955 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-11-16 04:21:46,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11061 states. [2024-11-16 04:21:46,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11061 to 9679. [2024-11-16 04:21:46,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9679 states, 9678 states have (on average 1.2081008472824963) internal successors, (11692), 9678 states have internal predecessors, (11692), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:21:46,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9679 states to 9679 states and 11692 transitions. [2024-11-16 04:21:46,642 INFO L78 Accepts]: Start accepts. Automaton has 9679 states and 11692 transitions. Word has length 115 [2024-11-16 04:21:46,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:21:46,644 INFO L471 AbstractCegarLoop]: Abstraction has 9679 states and 11692 transitions. [2024-11-16 04:21:46,645 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:21:46,645 INFO L276 IsEmpty]: Start isEmpty. Operand 9679 states and 11692 transitions. [2024-11-16 04:21:46,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-11-16 04:21:46,650 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:21:46,650 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-16 04:21:46,651 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-16 04:21:46,651 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:21:46,651 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:21:46,651 INFO L85 PathProgramCache]: Analyzing trace with hash -209819275, now seen corresponding path program 1 times [2024-11-16 04:21:46,651 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:21:46,651 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [540246877] [2024-11-16 04:21:46,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:21:46,652 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:21:46,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:21:47,197 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 04:21:47,199 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:21:47,199 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [540246877] [2024-11-16 04:21:47,200 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [540246877] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:21:47,200 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:21:47,200 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 04:21:47,200 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [964804671] [2024-11-16 04:21:47,200 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:21:47,201 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 04:21:47,201 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:21:47,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 04:21:47,204 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 04:21:47,205 INFO L87 Difference]: Start difference. First operand 9679 states and 11692 transitions. Second operand has 4 states, 4 states have (on average 35.0) internal successors, (140), 3 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:21:50,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:21:50,271 INFO L93 Difference]: Finished difference Result 22123 states and 26498 transitions. [2024-11-16 04:21:50,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 04:21:50,272 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 35.0) internal successors, (140), 3 states have internal predecessors, (140), 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 140 [2024-11-16 04:21:50,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:21:50,307 INFO L225 Difference]: With dead ends: 22123 [2024-11-16 04:21:50,307 INFO L226 Difference]: Without dead ends: 12446 [2024-11-16 04:21:50,317 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-16 04:21:50,321 INFO L432 NwaCegarLoop]: 628 mSDtfsCounter, 1878 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 4350 mSolverCounterSat, 117 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1878 SdHoareTripleChecker+Valid, 652 SdHoareTripleChecker+Invalid, 4467 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 117 IncrementalHoareTripleChecker+Valid, 4350 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2024-11-16 04:21:50,321 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1878 Valid, 652 Invalid, 4467 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [117 Valid, 4350 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2024-11-16 04:21:50,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12446 states. [2024-11-16 04:21:50,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12446 to 12443. [2024-11-16 04:21:50,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12443 states, 12442 states have (on average 1.178427905481434) internal successors, (14662), 12442 states have internal predecessors, (14662), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:21:50,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12443 states to 12443 states and 14662 transitions. [2024-11-16 04:21:50,492 INFO L78 Accepts]: Start accepts. Automaton has 12443 states and 14662 transitions. Word has length 140 [2024-11-16 04:21:50,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:21:50,493 INFO L471 AbstractCegarLoop]: Abstraction has 12443 states and 14662 transitions. [2024-11-16 04:21:50,493 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 35.0) internal successors, (140), 3 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:21:50,493 INFO L276 IsEmpty]: Start isEmpty. Operand 12443 states and 14662 transitions. [2024-11-16 04:21:50,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 324 [2024-11-16 04:21:50,497 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:21:50,497 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-16 04:21:50,497 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-16 04:21:50,497 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:21:50,498 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:21:50,498 INFO L85 PathProgramCache]: Analyzing trace with hash 1747779399, now seen corresponding path program 1 times [2024-11-16 04:21:50,498 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:21:50,498 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [609080621] [2024-11-16 04:21:50,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:21:50,499 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:21:50,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:21:51,021 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 153 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 04:21:51,021 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:21:51,022 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [609080621] [2024-11-16 04:21:51,022 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [609080621] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:21:51,022 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:21:51,022 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 04:21:51,022 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1247311284] [2024-11-16 04:21:51,022 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:21:51,023 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 04:21:51,023 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:21:51,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 04:21:51,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-16 04:21:51,025 INFO L87 Difference]: Start difference. First operand 12443 states and 14662 transitions. Second operand has 4 states, 4 states have (on average 80.75) internal successors, (323), 3 states have internal predecessors, (323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:21:53,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:21:53,297 INFO L93 Difference]: Finished difference Result 27705 states and 32203 transitions. [2024-11-16 04:21:53,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 04:21:53,302 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 80.75) internal successors, (323), 3 states have internal predecessors, (323), 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 323 [2024-11-16 04:21:53,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:21:53,330 INFO L225 Difference]: With dead ends: 27705 [2024-11-16 04:21:53,330 INFO L226 Difference]: Without dead ends: 15210 [2024-11-16 04:21:53,347 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-16 04:21:53,349 INFO L432 NwaCegarLoop]: 630 mSDtfsCounter, 516 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 3039 mSolverCounterSat, 202 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 516 SdHoareTripleChecker+Valid, 651 SdHoareTripleChecker+Invalid, 3241 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 202 IncrementalHoareTripleChecker+Valid, 3039 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-11-16 04:21:53,350 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [516 Valid, 651 Invalid, 3241 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [202 Valid, 3039 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-11-16 04:21:53,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15210 states. [2024-11-16 04:21:53,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15210 to 15207. [2024-11-16 04:21:53,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15207 states, 15206 states have (on average 1.1128501907141917) internal successors, (16922), 15206 states have internal predecessors, (16922), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:21:53,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15207 states to 15207 states and 16922 transitions. [2024-11-16 04:21:53,654 INFO L78 Accepts]: Start accepts. Automaton has 15207 states and 16922 transitions. Word has length 323 [2024-11-16 04:21:53,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:21:53,655 INFO L471 AbstractCegarLoop]: Abstraction has 15207 states and 16922 transitions. [2024-11-16 04:21:53,656 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 80.75) internal successors, (323), 3 states have internal predecessors, (323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:21:53,656 INFO L276 IsEmpty]: Start isEmpty. Operand 15207 states and 16922 transitions. [2024-11-16 04:21:53,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 390 [2024-11-16 04:21:53,662 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:21:53,662 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:21:53,662 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-16 04:21:53,663 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:21:53,663 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:21:53,663 INFO L85 PathProgramCache]: Analyzing trace with hash -2082543325, now seen corresponding path program 1 times [2024-11-16 04:21:53,663 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:21:53,664 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1590246716] [2024-11-16 04:21:53,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:21:53,664 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:21:53,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:21:54,161 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 102 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 04:21:54,162 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:21:54,162 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1590246716] [2024-11-16 04:21:54,162 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1590246716] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:21:54,162 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:21:54,162 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 04:21:54,162 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [227661629] [2024-11-16 04:21:54,162 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:21:54,163 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:21:54,163 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:21:54,164 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:21:54,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:21:54,164 INFO L87 Difference]: Start difference. First operand 15207 states and 16922 transitions. Second operand has 3 states, 3 states have (on average 129.66666666666666) internal successors, (389), 3 states have internal predecessors, (389), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:21:56,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:21:56,502 INFO L93 Difference]: Finished difference Result 37322 states and 41991 transitions. [2024-11-16 04:21:56,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:21:56,503 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 129.66666666666666) internal successors, (389), 3 states have internal predecessors, (389), 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 389 [2024-11-16 04:21:56,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:21:56,539 INFO L225 Difference]: With dead ends: 37322 [2024-11-16 04:21:56,539 INFO L226 Difference]: Without dead ends: 22117 [2024-11-16 04:21:56,555 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:21:56,556 INFO L432 NwaCegarLoop]: 341 mSDtfsCounter, 634 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 1934 mSolverCounterSat, 490 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 634 SdHoareTripleChecker+Valid, 347 SdHoareTripleChecker+Invalid, 2424 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 490 IncrementalHoareTripleChecker+Valid, 1934 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-11-16 04:21:56,556 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [634 Valid, 347 Invalid, 2424 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [490 Valid, 1934 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-11-16 04:21:56,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22117 states. [2024-11-16 04:21:56,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22117 to 21426. [2024-11-16 04:21:56,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21426 states, 21425 states have (on average 1.1267211201866978) internal successors, (24140), 21425 states have internal predecessors, (24140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:21:56,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21426 states to 21426 states and 24140 transitions. [2024-11-16 04:21:56,809 INFO L78 Accepts]: Start accepts. Automaton has 21426 states and 24140 transitions. Word has length 389 [2024-11-16 04:21:56,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:21:56,811 INFO L471 AbstractCegarLoop]: Abstraction has 21426 states and 24140 transitions. [2024-11-16 04:21:56,811 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 129.66666666666666) internal successors, (389), 3 states have internal predecessors, (389), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:21:56,811 INFO L276 IsEmpty]: Start isEmpty. Operand 21426 states and 24140 transitions. [2024-11-16 04:21:56,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 408 [2024-11-16 04:21:56,816 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:21:56,816 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:21:56,816 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-16 04:21:56,817 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:21:56,817 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:21:56,817 INFO L85 PathProgramCache]: Analyzing trace with hash 1847100880, now seen corresponding path program 1 times [2024-11-16 04:21:56,817 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:21:56,818 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [699457787] [2024-11-16 04:21:56,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:21:56,818 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:21:56,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:21:57,166 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2024-11-16 04:21:57,166 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:21:57,166 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [699457787] [2024-11-16 04:21:57,166 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [699457787] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:21:57,167 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:21:57,168 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 04:21:57,168 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1480413844] [2024-11-16 04:21:57,168 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:21:57,168 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:21:57,169 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:21:57,169 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:21:57,169 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:21:57,170 INFO L87 Difference]: Start difference. First operand 21426 states and 24140 transitions. Second operand has 3 states, 3 states have (on average 107.66666666666667) internal successors, (323), 2 states have internal predecessors, (323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:21:59,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:21:59,081 INFO L93 Difference]: Finished difference Result 49760 states and 55944 transitions. [2024-11-16 04:21:59,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:21:59,082 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 107.66666666666667) internal successors, (323), 2 states have internal predecessors, (323), 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 407 [2024-11-16 04:21:59,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:21:59,123 INFO L225 Difference]: With dead ends: 49760 [2024-11-16 04:21:59,124 INFO L226 Difference]: Without dead ends: 28336 [2024-11-16 04:21:59,148 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:21:59,149 INFO L432 NwaCegarLoop]: 78 mSDtfsCounter, 466 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 1794 mSolverCounterSat, 517 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 466 SdHoareTripleChecker+Valid, 84 SdHoareTripleChecker+Invalid, 2311 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 517 IncrementalHoareTripleChecker+Valid, 1794 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-16 04:21:59,149 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [466 Valid, 84 Invalid, 2311 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [517 Valid, 1794 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-16 04:21:59,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28336 states. [2024-11-16 04:21:59,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28336 to 28336. [2024-11-16 04:21:59,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28336 states, 28335 states have (on average 1.1050997000176461) internal successors, (31313), 28335 states have internal predecessors, (31313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:21:59,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28336 states to 28336 states and 31313 transitions. [2024-11-16 04:21:59,569 INFO L78 Accepts]: Start accepts. Automaton has 28336 states and 31313 transitions. Word has length 407 [2024-11-16 04:21:59,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:21:59,569 INFO L471 AbstractCegarLoop]: Abstraction has 28336 states and 31313 transitions. [2024-11-16 04:21:59,569 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 107.66666666666667) internal successors, (323), 2 states have internal predecessors, (323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:21:59,570 INFO L276 IsEmpty]: Start isEmpty. Operand 28336 states and 31313 transitions. [2024-11-16 04:21:59,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 441 [2024-11-16 04:21:59,576 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:21:59,576 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:21:59,576 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-16 04:21:59,576 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:21:59,577 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:21:59,577 INFO L85 PathProgramCache]: Analyzing trace with hash -1225676181, now seen corresponding path program 1 times [2024-11-16 04:21:59,577 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:21:59,577 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [896809261] [2024-11-16 04:21:59,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:21:59,577 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:21:59,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:22:00,188 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 153 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 04:22:00,189 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:22:00,189 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [896809261] [2024-11-16 04:22:00,189 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [896809261] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:22:00,189 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:22:00,189 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 04:22:00,190 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1167726975] [2024-11-16 04:22:00,190 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:22:00,191 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:22:00,191 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:22:00,192 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:22:00,192 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:22:00,193 INFO L87 Difference]: Start difference. First operand 28336 states and 31313 transitions. Second operand has 3 states, 3 states have (on average 146.66666666666666) internal successors, (440), 3 states have internal predecessors, (440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:22:02,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:22:02,146 INFO L93 Difference]: Finished difference Result 62889 states and 69651 transitions. [2024-11-16 04:22:02,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:22:02,148 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 146.66666666666666) internal successors, (440), 3 states have internal predecessors, (440), 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 440 [2024-11-16 04:22:02,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:22:02,196 INFO L225 Difference]: With dead ends: 62889 [2024-11-16 04:22:02,197 INFO L226 Difference]: Without dead ends: 34555 [2024-11-16 04:22:02,219 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:22:02,222 INFO L432 NwaCegarLoop]: 975 mSDtfsCounter, 575 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 1955 mSolverCounterSat, 264 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 575 SdHoareTripleChecker+Valid, 984 SdHoareTripleChecker+Invalid, 2219 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 264 IncrementalHoareTripleChecker+Valid, 1955 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-16 04:22:02,223 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [575 Valid, 984 Invalid, 2219 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [264 Valid, 1955 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-16 04:22:02,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34555 states. [2024-11-16 04:22:02,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34555 to 33173. [2024-11-16 04:22:02,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33173 states, 33172 states have (on average 1.0960448571084047) internal successors, (36358), 33172 states have internal predecessors, (36358), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:22:02,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33173 states to 33173 states and 36358 transitions. [2024-11-16 04:22:02,687 INFO L78 Accepts]: Start accepts. Automaton has 33173 states and 36358 transitions. Word has length 440 [2024-11-16 04:22:02,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:22:02,688 INFO L471 AbstractCegarLoop]: Abstraction has 33173 states and 36358 transitions. [2024-11-16 04:22:02,688 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 146.66666666666666) internal successors, (440), 3 states have internal predecessors, (440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:22:02,689 INFO L276 IsEmpty]: Start isEmpty. Operand 33173 states and 36358 transitions. [2024-11-16 04:22:02,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 477 [2024-11-16 04:22:02,696 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:22:02,697 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:22:02,697 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-16 04:22:02,697 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:22:02,701 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:22:02,702 INFO L85 PathProgramCache]: Analyzing trace with hash 1751602381, now seen corresponding path program 1 times [2024-11-16 04:22:02,702 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:22:02,702 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2064697825] [2024-11-16 04:22:02,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:22:02,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:22:02,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:22:03,026 INFO L134 CoverageAnalysis]: Checked inductivity of 274 backedges. 53 proven. 0 refuted. 0 times theorem prover too weak. 221 trivial. 0 not checked. [2024-11-16 04:22:03,026 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:22:03,027 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2064697825] [2024-11-16 04:22:03,027 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2064697825] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:22:03,027 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:22:03,027 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 04:22:03,027 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [132212032] [2024-11-16 04:22:03,027 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:22:03,028 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:22:03,031 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:22:03,031 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:22:03,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:22:03,032 INFO L87 Difference]: Start difference. First operand 33173 states and 36358 transitions. Second operand has 3 states, 3 states have (on average 108.0) internal successors, (324), 3 states have internal predecessors, (324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:22:04,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:22:04,981 INFO L93 Difference]: Finished difference Result 73945 states and 82039 transitions. [2024-11-16 04:22:04,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:22:04,982 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 108.0) internal successors, (324), 3 states have internal predecessors, (324), 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 476 [2024-11-16 04:22:04,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:22:05,036 INFO L225 Difference]: With dead ends: 73945 [2024-11-16 04:22:05,036 INFO L226 Difference]: Without dead ends: 40774 [2024-11-16 04:22:05,061 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:22:05,062 INFO L432 NwaCegarLoop]: 928 mSDtfsCounter, 712 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 1975 mSolverCounterSat, 290 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 712 SdHoareTripleChecker+Valid, 937 SdHoareTripleChecker+Invalid, 2265 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 290 IncrementalHoareTripleChecker+Valid, 1975 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-16 04:22:05,062 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [712 Valid, 937 Invalid, 2265 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [290 Valid, 1975 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-16 04:22:05,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40774 states. [2024-11-16 04:22:05,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40774 to 40774. [2024-11-16 04:22:05,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40774 states, 40773 states have (on average 1.0909180094670492) internal successors, (44480), 40773 states have internal predecessors, (44480), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:22:05,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40774 states to 40774 states and 44480 transitions. [2024-11-16 04:22:05,761 INFO L78 Accepts]: Start accepts. Automaton has 40774 states and 44480 transitions. Word has length 476 [2024-11-16 04:22:05,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:22:05,762 INFO L471 AbstractCegarLoop]: Abstraction has 40774 states and 44480 transitions. [2024-11-16 04:22:05,762 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 108.0) internal successors, (324), 3 states have internal predecessors, (324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:22:05,762 INFO L276 IsEmpty]: Start isEmpty. Operand 40774 states and 44480 transitions. [2024-11-16 04:22:05,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 519 [2024-11-16 04:22:05,769 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:22:05,770 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:22:05,770 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-16 04:22:05,770 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:22:05,771 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:22:05,771 INFO L85 PathProgramCache]: Analyzing trace with hash 1681360726, now seen corresponding path program 1 times [2024-11-16 04:22:05,771 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:22:05,771 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1718309894] [2024-11-16 04:22:05,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:22:05,771 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:22:05,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:22:06,294 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 194 proven. 0 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2024-11-16 04:22:06,295 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:22:06,295 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1718309894] [2024-11-16 04:22:06,295 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1718309894] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:22:06,295 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:22:06,295 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 04:22:06,296 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1086598630] [2024-11-16 04:22:06,296 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:22:06,297 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:22:06,297 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:22:06,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:22:06,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:22:06,298 INFO L87 Difference]: Start difference. First operand 40774 states and 44480 transitions. Second operand has 3 states, 3 states have (on average 133.66666666666666) internal successors, (401), 3 states have internal predecessors, (401), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:22:08,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:22:08,269 INFO L93 Difference]: Finished difference Result 93293 states and 102695 transitions. [2024-11-16 04:22:08,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:22:08,270 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 133.66666666666666) internal successors, (401), 3 states have internal predecessors, (401), 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 518 [2024-11-16 04:22:08,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:22:08,328 INFO L225 Difference]: With dead ends: 93293 [2024-11-16 04:22:08,329 INFO L226 Difference]: Without dead ends: 49757 [2024-11-16 04:22:08,358 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:22:08,359 INFO L432 NwaCegarLoop]: 1090 mSDtfsCounter, 641 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 1706 mSolverCounterSat, 522 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 641 SdHoareTripleChecker+Valid, 1097 SdHoareTripleChecker+Invalid, 2228 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 522 IncrementalHoareTripleChecker+Valid, 1706 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-16 04:22:08,359 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [641 Valid, 1097 Invalid, 2228 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [522 Valid, 1706 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-16 04:22:08,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49757 states. [2024-11-16 04:22:08,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49757 to 44920. [2024-11-16 04:22:08,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44920 states, 44919 states have (on average 1.0534072441505822) internal successors, (47318), 44919 states have internal predecessors, (47318), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:22:08,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44920 states to 44920 states and 47318 transitions. [2024-11-16 04:22:08,962 INFO L78 Accepts]: Start accepts. Automaton has 44920 states and 47318 transitions. Word has length 518 [2024-11-16 04:22:08,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:22:08,963 INFO L471 AbstractCegarLoop]: Abstraction has 44920 states and 47318 transitions. [2024-11-16 04:22:08,963 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 133.66666666666666) internal successors, (401), 3 states have internal predecessors, (401), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:22:08,963 INFO L276 IsEmpty]: Start isEmpty. Operand 44920 states and 47318 transitions. [2024-11-16 04:22:08,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 566 [2024-11-16 04:22:08,973 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:22:08,974 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:22:08,974 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-16 04:22:08,974 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:22:08,975 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:22:08,975 INFO L85 PathProgramCache]: Analyzing trace with hash 1024030026, now seen corresponding path program 1 times [2024-11-16 04:22:08,975 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:22:08,975 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1173644173] [2024-11-16 04:22:08,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:22:08,976 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:22:09,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:22:09,731 INFO L134 CoverageAnalysis]: Checked inductivity of 540 backedges. 283 proven. 0 refuted. 0 times theorem prover too weak. 257 trivial. 0 not checked. [2024-11-16 04:22:09,731 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:22:09,731 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1173644173] [2024-11-16 04:22:09,732 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1173644173] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:22:09,732 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:22:09,732 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 04:22:09,732 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1418258672] [2024-11-16 04:22:09,732 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:22:09,733 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:22:09,733 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:22:09,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:22:09,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:22:09,734 INFO L87 Difference]: Start difference. First operand 44920 states and 47318 transitions. Second operand has 3 states, 3 states have (on average 131.66666666666666) internal successors, (395), 3 states have internal predecessors, (395), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:22:11,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:22:11,568 INFO L93 Difference]: Finished difference Result 98821 states and 104376 transitions. [2024-11-16 04:22:11,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:22:11,569 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 131.66666666666666) internal successors, (395), 3 states have internal predecessors, (395), 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 565 [2024-11-16 04:22:11,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:22:11,624 INFO L225 Difference]: With dead ends: 98821 [2024-11-16 04:22:11,624 INFO L226 Difference]: Without dead ends: 53212 [2024-11-16 04:22:11,645 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:22:11,646 INFO L432 NwaCegarLoop]: 971 mSDtfsCounter, 624 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 1785 mSolverCounterSat, 232 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 624 SdHoareTripleChecker+Valid, 980 SdHoareTripleChecker+Invalid, 2017 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 232 IncrementalHoareTripleChecker+Valid, 1785 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-16 04:22:11,646 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [624 Valid, 980 Invalid, 2017 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [232 Valid, 1785 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-16 04:22:11,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53212 states. [2024-11-16 04:22:12,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53212 to 52521. [2024-11-16 04:22:12,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52521 states, 52520 states have (on average 1.0503617669459253) internal successors, (55165), 52520 states have internal predecessors, (55165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:22:12,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52521 states to 52521 states and 55165 transitions. [2024-11-16 04:22:12,423 INFO L78 Accepts]: Start accepts. Automaton has 52521 states and 55165 transitions. Word has length 565 [2024-11-16 04:22:12,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:22:12,423 INFO L471 AbstractCegarLoop]: Abstraction has 52521 states and 55165 transitions. [2024-11-16 04:22:12,423 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 131.66666666666666) internal successors, (395), 3 states have internal predecessors, (395), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:22:12,423 INFO L276 IsEmpty]: Start isEmpty. Operand 52521 states and 55165 transitions. [2024-11-16 04:22:12,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 585 [2024-11-16 04:22:12,430 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:22:12,430 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:22:12,430 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-16 04:22:12,430 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:22:12,431 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:22:12,431 INFO L85 PathProgramCache]: Analyzing trace with hash -298206330, now seen corresponding path program 1 times [2024-11-16 04:22:12,431 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:22:12,431 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [943671635] [2024-11-16 04:22:12,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:22:12,432 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:22:12,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:22:12,919 INFO L134 CoverageAnalysis]: Checked inductivity of 560 backedges. 283 proven. 0 refuted. 0 times theorem prover too weak. 277 trivial. 0 not checked. [2024-11-16 04:22:12,919 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:22:12,919 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [943671635] [2024-11-16 04:22:12,920 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [943671635] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:22:12,920 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:22:12,920 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 04:22:12,920 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [879717107] [2024-11-16 04:22:12,920 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:22:12,921 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:22:12,921 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:22:12,922 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:22:12,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:22:12,922 INFO L87 Difference]: Start difference. First operand 52521 states and 55165 transitions. Second operand has 3 states, 3 states have (on average 131.66666666666666) internal successors, (395), 3 states have internal predecessors, (395), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:22:14,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:22:14,615 INFO L93 Difference]: Finished difference Result 106422 states and 111714 transitions. [2024-11-16 04:22:14,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:22:14,615 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 131.66666666666666) internal successors, (395), 3 states have internal predecessors, (395), 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 584 [2024-11-16 04:22:14,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:22:14,662 INFO L225 Difference]: With dead ends: 106422 [2024-11-16 04:22:14,663 INFO L226 Difference]: Without dead ends: 53903 [2024-11-16 04:22:14,687 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:22:14,687 INFO L432 NwaCegarLoop]: 264 mSDtfsCounter, 627 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 1796 mSolverCounterSat, 143 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 627 SdHoareTripleChecker+Valid, 270 SdHoareTripleChecker+Invalid, 1939 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 143 IncrementalHoareTripleChecker+Valid, 1796 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-16 04:22:14,688 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [627 Valid, 270 Invalid, 1939 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [143 Valid, 1796 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-16 04:22:14,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53903 states. [2024-11-16 04:22:15,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53903 to 53212. [2024-11-16 04:22:15,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53212 states, 53211 states have (on average 1.043769145477439) internal successors, (55540), 53211 states have internal predecessors, (55540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:22:15,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53212 states to 53212 states and 55540 transitions. [2024-11-16 04:22:15,387 INFO L78 Accepts]: Start accepts. Automaton has 53212 states and 55540 transitions. Word has length 584 [2024-11-16 04:22:15,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:22:15,387 INFO L471 AbstractCegarLoop]: Abstraction has 53212 states and 55540 transitions. [2024-11-16 04:22:15,387 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 131.66666666666666) internal successors, (395), 3 states have internal predecessors, (395), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:22:15,387 INFO L276 IsEmpty]: Start isEmpty. Operand 53212 states and 55540 transitions. [2024-11-16 04:22:15,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1185 [2024-11-16 04:22:15,412 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:22:15,412 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:22:15,413 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-16 04:22:15,413 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:22:15,413 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:22:15,414 INFO L85 PathProgramCache]: Analyzing trace with hash -886508330, now seen corresponding path program 1 times [2024-11-16 04:22:15,414 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:22:15,414 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [436100472] [2024-11-16 04:22:15,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:22:15,415 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:22:15,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:22:16,686 INFO L134 CoverageAnalysis]: Checked inductivity of 1358 backedges. 89 proven. 0 refuted. 0 times theorem prover too weak. 1269 trivial. 0 not checked. [2024-11-16 04:22:16,686 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:22:16,686 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [436100472] [2024-11-16 04:22:16,687 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [436100472] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:22:16,687 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:22:16,687 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 04:22:16,687 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [354781211] [2024-11-16 04:22:16,687 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:22:16,688 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:22:16,688 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:22:16,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:22:16,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:22:16,689 INFO L87 Difference]: Start difference. First operand 53212 states and 55540 transitions. Second operand has 3 states, 3 states have (on average 180.66666666666666) internal successors, (542), 3 states have internal predecessors, (542), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:22:18,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:22:18,481 INFO L93 Difference]: Finished difference Result 105040 states and 109667 transitions. [2024-11-16 04:22:18,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:22:18,482 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 180.66666666666666) internal successors, (542), 3 states have internal predecessors, (542), 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 1184 [2024-11-16 04:22:18,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:22:18,541 INFO L225 Difference]: With dead ends: 105040 [2024-11-16 04:22:18,541 INFO L226 Difference]: Without dead ends: 52521 [2024-11-16 04:22:18,570 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:22:18,571 INFO L432 NwaCegarLoop]: 890 mSDtfsCounter, 740 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 1627 mSolverCounterSat, 224 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 740 SdHoareTripleChecker+Valid, 899 SdHoareTripleChecker+Invalid, 1851 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 224 IncrementalHoareTripleChecker+Valid, 1627 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-16 04:22:18,571 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [740 Valid, 899 Invalid, 1851 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [224 Valid, 1627 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-16 04:22:18,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52521 states. [2024-11-16 04:22:19,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52521 to 51830. [2024-11-16 04:22:19,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51830 states, 51829 states have (on average 1.0306006289914913) internal successors, (53415), 51829 states have internal predecessors, (53415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:22:19,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51830 states to 51830 states and 53415 transitions. [2024-11-16 04:22:19,115 INFO L78 Accepts]: Start accepts. Automaton has 51830 states and 53415 transitions. Word has length 1184 [2024-11-16 04:22:19,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:22:19,116 INFO L471 AbstractCegarLoop]: Abstraction has 51830 states and 53415 transitions. [2024-11-16 04:22:19,116 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 180.66666666666666) internal successors, (542), 3 states have internal predecessors, (542), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:22:19,116 INFO L276 IsEmpty]: Start isEmpty. Operand 51830 states and 53415 transitions. [2024-11-16 04:22:19,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1210 [2024-11-16 04:22:19,129 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:22:19,129 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:22:19,129 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-16 04:22:19,130 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:22:19,130 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:22:19,130 INFO L85 PathProgramCache]: Analyzing trace with hash -517069080, now seen corresponding path program 1 times [2024-11-16 04:22:19,130 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:22:19,130 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1476064933] [2024-11-16 04:22:19,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:22:19,131 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:22:19,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:22:20,403 INFO L134 CoverageAnalysis]: Checked inductivity of 1669 backedges. 1075 proven. 0 refuted. 0 times theorem prover too weak. 594 trivial. 0 not checked. [2024-11-16 04:22:20,407 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:22:20,407 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1476064933] [2024-11-16 04:22:20,408 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1476064933] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:22:20,408 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:22:20,408 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 04:22:20,408 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1532554617] [2024-11-16 04:22:20,409 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:22:20,410 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:22:20,410 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:22:20,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:22:20,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:22:20,411 INFO L87 Difference]: Start difference. First operand 51830 states and 53415 transitions. Second operand has 3 states, 3 states have (on average 241.0) internal successors, (723), 3 states have internal predecessors, (723), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:22:21,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:22:21,985 INFO L93 Difference]: Finished difference Result 102967 states and 106125 transitions. [2024-11-16 04:22:21,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:22:21,986 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 241.0) internal successors, (723), 3 states have internal predecessors, (723), 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 1209 [2024-11-16 04:22:21,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:22:22,040 INFO L225 Difference]: With dead ends: 102967 [2024-11-16 04:22:22,040 INFO L226 Difference]: Without dead ends: 51830 [2024-11-16 04:22:22,070 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:22:22,070 INFO L432 NwaCegarLoop]: 952 mSDtfsCounter, 587 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 1693 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 587 SdHoareTripleChecker+Valid, 961 SdHoareTripleChecker+Invalid, 1765 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 1693 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-16 04:22:22,071 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [587 Valid, 961 Invalid, 1765 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 1693 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-16 04:22:22,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51830 states. [2024-11-16 04:22:22,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51830 to 51139. [2024-11-16 04:22:22,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51139 states, 51138 states have (on average 1.028726191872971) internal successors, (52607), 51138 states have internal predecessors, (52607), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:22:22,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51139 states to 51139 states and 52607 transitions. [2024-11-16 04:22:22,613 INFO L78 Accepts]: Start accepts. Automaton has 51139 states and 52607 transitions. Word has length 1209 [2024-11-16 04:22:22,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:22:22,613 INFO L471 AbstractCegarLoop]: Abstraction has 51139 states and 52607 transitions. [2024-11-16 04:22:22,613 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 241.0) internal successors, (723), 3 states have internal predecessors, (723), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:22:22,614 INFO L276 IsEmpty]: Start isEmpty. Operand 51139 states and 52607 transitions. [2024-11-16 04:22:22,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1213 [2024-11-16 04:22:22,623 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:22:22,624 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 5, 5, 5, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:22:22,624 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-16 04:22:22,624 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:22:22,624 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:22:22,625 INFO L85 PathProgramCache]: Analyzing trace with hash 416447342, now seen corresponding path program 1 times [2024-11-16 04:22:22,625 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:22:22,625 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2097813554] [2024-11-16 04:22:22,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:22:22,625 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:22:22,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:22:24,384 INFO L134 CoverageAnalysis]: Checked inductivity of 1613 backedges. 786 proven. 585 refuted. 0 times theorem prover too weak. 242 trivial. 0 not checked. [2024-11-16 04:22:24,384 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:22:24,384 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2097813554] [2024-11-16 04:22:24,384 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2097813554] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 04:22:24,384 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [479826619] [2024-11-16 04:22:24,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:22:24,385 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 04:22:24,385 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 04:22:24,387 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 04:22:24,388 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-16 04:22:24,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:22:24,743 INFO L255 TraceCheckSpWp]: Trace formula consists of 1426 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-16 04:22:24,784 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 04:22:25,052 INFO L134 CoverageAnalysis]: Checked inductivity of 1613 backedges. 920 proven. 0 refuted. 0 times theorem prover too weak. 693 trivial. 0 not checked. [2024-11-16 04:22:25,052 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 04:22:25,053 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [479826619] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:22:25,053 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 04:22:25,053 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2024-11-16 04:22:25,053 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [478336405] [2024-11-16 04:22:25,053 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:22:25,055 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:22:25,055 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:22:25,055 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:22:25,056 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-16 04:22:25,056 INFO L87 Difference]: Start difference. First operand 51139 states and 52607 transitions. Second operand has 3 states, 3 states have (on average 248.0) internal successors, (744), 3 states have internal predecessors, (744), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:22:26,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:22:26,812 INFO L93 Difference]: Finished difference Result 114714 states and 118402 transitions. [2024-11-16 04:22:26,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:22:26,813 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 248.0) internal successors, (744), 3 states have internal predecessors, (744), 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 1212 [2024-11-16 04:22:26,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:22:26,891 INFO L225 Difference]: With dead ends: 114714 [2024-11-16 04:22:26,891 INFO L226 Difference]: Without dead ends: 62195 [2024-11-16 04:22:26,929 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1217 GetRequests, 1212 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-16 04:22:26,930 INFO L432 NwaCegarLoop]: 883 mSDtfsCounter, 583 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 1655 mSolverCounterSat, 297 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 583 SdHoareTripleChecker+Valid, 890 SdHoareTripleChecker+Invalid, 1952 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 297 IncrementalHoareTripleChecker+Valid, 1655 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-16 04:22:26,930 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [583 Valid, 890 Invalid, 1952 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [297 Valid, 1655 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-16 04:22:26,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62195 states. [2024-11-16 04:22:27,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62195 to 60122. [2024-11-16 04:22:27,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60122 states, 60121 states have (on average 1.029623592421949) internal successors, (61902), 60121 states have internal predecessors, (61902), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:22:27,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60122 states to 60122 states and 61902 transitions. [2024-11-16 04:22:27,649 INFO L78 Accepts]: Start accepts. Automaton has 60122 states and 61902 transitions. Word has length 1212 [2024-11-16 04:22:27,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:22:27,650 INFO L471 AbstractCegarLoop]: Abstraction has 60122 states and 61902 transitions. [2024-11-16 04:22:27,650 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 248.0) internal successors, (744), 3 states have internal predecessors, (744), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:22:27,650 INFO L276 IsEmpty]: Start isEmpty. Operand 60122 states and 61902 transitions. [2024-11-16 04:22:27,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1365 [2024-11-16 04:22:27,666 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:22:27,667 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:22:27,681 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-16 04:22:27,867 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,SelfDestructingSolverStorable15 [2024-11-16 04:22:27,868 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:22:27,868 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:22:27,869 INFO L85 PathProgramCache]: Analyzing trace with hash -1657095567, now seen corresponding path program 1 times [2024-11-16 04:22:27,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:22:27,869 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [771754037] [2024-11-16 04:22:27,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:22:27,869 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:22:28,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:22:29,326 INFO L134 CoverageAnalysis]: Checked inductivity of 2076 backedges. 1413 proven. 0 refuted. 0 times theorem prover too weak. 663 trivial. 0 not checked. [2024-11-16 04:22:29,326 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:22:29,326 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [771754037] [2024-11-16 04:22:29,326 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [771754037] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:22:29,326 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:22:29,327 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 04:22:29,327 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [977013283] [2024-11-16 04:22:29,327 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:22:29,328 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 04:22:29,328 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:22:29,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 04:22:29,329 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-16 04:22:29,330 INFO L87 Difference]: Start difference. First operand 60122 states and 61902 transitions. Second operand has 4 states, 4 states have (on average 206.5) internal successors, (826), 3 states have internal predecessors, (826), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:22:31,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:22:31,794 INFO L93 Difference]: Finished difference Result 120933 states and 124494 transitions. [2024-11-16 04:22:31,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 04:22:31,795 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 206.5) internal successors, (826), 3 states have internal predecessors, (826), 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 1364 [2024-11-16 04:22:31,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:22:31,861 INFO L225 Difference]: With dead ends: 120933 [2024-11-16 04:22:31,861 INFO L226 Difference]: Without dead ends: 61504 [2024-11-16 04:22:31,900 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-16 04:22:31,901 INFO L432 NwaCegarLoop]: 59 mSDtfsCounter, 804 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 2722 mSolverCounterSat, 239 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 804 SdHoareTripleChecker+Valid, 71 SdHoareTripleChecker+Invalid, 2961 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 239 IncrementalHoareTripleChecker+Valid, 2722 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-11-16 04:22:31,901 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [804 Valid, 71 Invalid, 2961 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [239 Valid, 2722 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-11-16 04:22:31,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61504 states. [2024-11-16 04:22:32,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61504 to 60122. [2024-11-16 04:22:32,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60122 states, 60121 states have (on average 1.0295570599291428) internal successors, (61898), 60121 states have internal predecessors, (61898), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:22:32,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60122 states to 60122 states and 61898 transitions. [2024-11-16 04:22:32,871 INFO L78 Accepts]: Start accepts. Automaton has 60122 states and 61898 transitions. Word has length 1364 [2024-11-16 04:22:32,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:22:32,872 INFO L471 AbstractCegarLoop]: Abstraction has 60122 states and 61898 transitions. [2024-11-16 04:22:32,872 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 206.5) internal successors, (826), 3 states have internal predecessors, (826), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:22:32,872 INFO L276 IsEmpty]: Start isEmpty. Operand 60122 states and 61898 transitions. [2024-11-16 04:22:32,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1381 [2024-11-16 04:22:32,894 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:22:32,895 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:22:32,895 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-16 04:22:32,895 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:22:32,895 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:22:32,896 INFO L85 PathProgramCache]: Analyzing trace with hash -1056634123, now seen corresponding path program 1 times [2024-11-16 04:22:32,896 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:22:32,896 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [991057105] [2024-11-16 04:22:32,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:22:32,896 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:22:33,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:22:33,722 INFO L134 CoverageAnalysis]: Checked inductivity of 2427 backedges. 1530 proven. 0 refuted. 0 times theorem prover too weak. 897 trivial. 0 not checked. [2024-11-16 04:22:33,723 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:22:33,723 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [991057105] [2024-11-16 04:22:33,723 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [991057105] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:22:33,723 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:22:33,723 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 04:22:33,723 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1589247458] [2024-11-16 04:22:33,723 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:22:33,724 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:22:33,725 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:22:33,725 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:22:33,726 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:22:33,726 INFO L87 Difference]: Start difference. First operand 60122 states and 61898 transitions. Second operand has 3 states, 3 states have (on average 255.0) internal successors, (765), 3 states have internal predecessors, (765), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:22:35,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:22:35,389 INFO L93 Difference]: Finished difference Result 118860 states and 122386 transitions. [2024-11-16 04:22:35,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:22:35,390 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 255.0) internal successors, (765), 3 states have internal predecessors, (765), 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 1380 [2024-11-16 04:22:35,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:22:35,447 INFO L225 Difference]: With dead ends: 118860 [2024-11-16 04:22:35,448 INFO L226 Difference]: Without dead ends: 58740 [2024-11-16 04:22:35,480 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:22:35,481 INFO L432 NwaCegarLoop]: 936 mSDtfsCounter, 553 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 1666 mSolverCounterSat, 129 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 553 SdHoareTripleChecker+Valid, 945 SdHoareTripleChecker+Invalid, 1795 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 129 IncrementalHoareTripleChecker+Valid, 1666 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-16 04:22:35,481 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [553 Valid, 945 Invalid, 1795 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [129 Valid, 1666 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-16 04:22:35,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58740 states. [2024-11-16 04:22:36,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58740 to 57358. [2024-11-16 04:22:36,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57358 states, 57357 states have (on average 1.026064822079258) internal successors, (58852), 57357 states have internal predecessors, (58852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:22:36,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57358 states to 57358 states and 58852 transitions. [2024-11-16 04:22:36,095 INFO L78 Accepts]: Start accepts. Automaton has 57358 states and 58852 transitions. Word has length 1380 [2024-11-16 04:22:36,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:22:36,096 INFO L471 AbstractCegarLoop]: Abstraction has 57358 states and 58852 transitions. [2024-11-16 04:22:36,096 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 255.0) internal successors, (765), 3 states have internal predecessors, (765), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:22:36,096 INFO L276 IsEmpty]: Start isEmpty. Operand 57358 states and 58852 transitions. [2024-11-16 04:22:36,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1445 [2024-11-16 04:22:36,117 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:22:36,118 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:22:36,118 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-16 04:22:36,118 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:22:36,119 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:22:36,119 INFO L85 PathProgramCache]: Analyzing trace with hash 601891518, now seen corresponding path program 1 times [2024-11-16 04:22:36,119 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:22:36,119 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [540716630] [2024-11-16 04:22:36,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:22:36,119 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:22:36,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:22:38,297 INFO L134 CoverageAnalysis]: Checked inductivity of 2606 backedges. 634 proven. 0 refuted. 0 times theorem prover too weak. 1972 trivial. 0 not checked. [2024-11-16 04:22:38,297 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:22:38,297 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [540716630] [2024-11-16 04:22:38,297 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [540716630] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:22:38,297 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:22:38,298 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 04:22:38,298 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1189460691] [2024-11-16 04:22:38,298 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:22:38,300 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:22:38,300 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:22:38,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:22:38,301 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:22:38,302 INFO L87 Difference]: Start difference. First operand 57358 states and 58852 transitions. Second operand has 3 states, 3 states have (on average 209.33333333333334) internal successors, (628), 3 states have internal predecessors, (628), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:22:40,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:22:40,090 INFO L93 Difference]: Finished difference Result 114714 states and 117711 transitions. [2024-11-16 04:22:40,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:22:40,091 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 209.33333333333334) internal successors, (628), 3 states have internal predecessors, (628), 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 1444 [2024-11-16 04:22:40,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:22:40,164 INFO L225 Difference]: With dead ends: 114714 [2024-11-16 04:22:40,164 INFO L226 Difference]: Without dead ends: 58049 [2024-11-16 04:22:40,199 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:22:40,199 INFO L432 NwaCegarLoop]: 760 mSDtfsCounter, 646 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 1666 mSolverCounterSat, 246 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 646 SdHoareTripleChecker+Valid, 767 SdHoareTripleChecker+Invalid, 1912 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 246 IncrementalHoareTripleChecker+Valid, 1666 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-16 04:22:40,200 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [646 Valid, 767 Invalid, 1912 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [246 Valid, 1666 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-16 04:22:40,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58049 states. [2024-11-16 04:22:40,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58049 to 57358. [2024-11-16 04:22:40,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57358 states, 57357 states have (on average 1.0236239691755147) internal successors, (58712), 57357 states have internal predecessors, (58712), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:22:40,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57358 states to 57358 states and 58712 transitions. [2024-11-16 04:22:40,783 INFO L78 Accepts]: Start accepts. Automaton has 57358 states and 58712 transitions. Word has length 1444 [2024-11-16 04:22:40,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:22:40,784 INFO L471 AbstractCegarLoop]: Abstraction has 57358 states and 58712 transitions. [2024-11-16 04:22:40,784 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 209.33333333333334) internal successors, (628), 3 states have internal predecessors, (628), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:22:40,784 INFO L276 IsEmpty]: Start isEmpty. Operand 57358 states and 58712 transitions. [2024-11-16 04:22:40,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1493 [2024-11-16 04:22:40,802 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:22:40,803 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-16 04:22:40,803 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-16 04:22:40,803 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:22:40,804 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:22:40,804 INFO L85 PathProgramCache]: Analyzing trace with hash 1652303367, now seen corresponding path program 1 times [2024-11-16 04:22:40,804 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:22:40,804 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1767159508] [2024-11-16 04:22:40,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:22:40,804 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:22:40,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat