./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem03_label59.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/Problem03_label59.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 2d68e7262b60a12a6597b15e2848fbc8314c4945758acd933fd69212a55e4a41 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 03:11:02,308 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 03:11:02,376 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-16 03:11:02,381 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 03:11:02,382 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 03:11:02,405 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 03:11:02,406 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 03:11:02,407 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 03:11:02,407 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-16 03:11:02,408 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-16 03:11:02,409 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 03:11:02,409 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 03:11:02,410 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 03:11:02,410 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 03:11:02,412 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 03:11:02,412 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 03:11:02,413 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 03:11:02,413 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-16 03:11:02,413 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 03:11:02,413 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-16 03:11:02,414 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 03:11:02,414 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 03:11:02,414 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 03:11:02,414 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 03:11:02,415 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 03:11:02,415 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-16 03:11:02,415 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 03:11:02,415 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 03:11:02,415 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 03:11:02,415 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 03:11:02,416 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-16 03:11:02,416 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 03:11:02,416 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 03:11:02,416 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 03:11:02,416 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 03:11:02,416 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 03:11:02,417 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 03:11:02,417 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 03:11:02,417 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 03:11:02,417 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 03:11:02,418 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 03:11:02,418 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 03:11:02,418 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2d68e7262b60a12a6597b15e2848fbc8314c4945758acd933fd69212a55e4a41 [2024-11-16 03:11:02,617 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 03:11:02,635 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 03:11:02,638 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 03:11:02,638 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 03:11:02,639 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 03:11:02,639 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem03_label59.c [2024-11-16 03:11:03,853 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 03:11:04,120 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 03:11:04,121 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem03_label59.c [2024-11-16 03:11:04,138 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7040ba625/0ee98dbe91ad4ff594f58e4d40fd6fe2/FLAG7224adba7 [2024-11-16 03:11:04,426 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7040ba625/0ee98dbe91ad4ff594f58e4d40fd6fe2 [2024-11-16 03:11:04,427 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 03:11:04,428 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 03:11:04,429 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 03:11:04,429 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 03:11:04,434 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 03:11:04,434 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 03:11:04" (1/1) ... [2024-11-16 03:11:04,435 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a1b1f42 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:11:04, skipping insertion in model container [2024-11-16 03:11:04,435 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 03:11:04" (1/1) ... [2024-11-16 03:11:04,537 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 03:11:04,933 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem03_label59.c[57711,57724] [2024-11-16 03:11:04,969 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 03:11:04,977 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 03:11:05,164 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem03_label59.c[57711,57724] [2024-11-16 03:11:05,174 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 03:11:05,190 INFO L204 MainTranslator]: Completed translation [2024-11-16 03:11:05,191 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:11:05 WrapperNode [2024-11-16 03:11:05,191 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 03:11:05,192 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 03:11:05,192 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 03:11:05,192 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 03:11:05,197 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:11:05" (1/1) ... [2024-11-16 03:11:05,228 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:11:05" (1/1) ... [2024-11-16 03:11:05,299 INFO L138 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1771 [2024-11-16 03:11:05,300 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 03:11:05,300 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 03:11:05,300 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 03:11:05,300 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 03:11:05,309 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:11:05" (1/1) ... [2024-11-16 03:11:05,309 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:11:05" (1/1) ... [2024-11-16 03:11:05,316 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:11:05" (1/1) ... [2024-11-16 03:11:05,345 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 03:11:05,348 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:11:05" (1/1) ... [2024-11-16 03:11:05,348 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:11:05" (1/1) ... [2024-11-16 03:11:05,373 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:11:05" (1/1) ... [2024-11-16 03:11:05,376 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:11:05" (1/1) ... [2024-11-16 03:11:05,379 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:11:05" (1/1) ... [2024-11-16 03:11:05,386 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:11:05" (1/1) ... [2024-11-16 03:11:05,394 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 03:11:05,394 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 03:11:05,395 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 03:11:05,395 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 03:11:05,395 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:11:05" (1/1) ... [2024-11-16 03:11:05,400 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 03:11:05,413 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 03:11:05,425 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 03:11:05,456 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 03:11:05,490 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 03:11:05,490 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-16 03:11:05,490 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 03:11:05,490 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 03:11:05,566 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 03:11:05,568 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 03:11:06,864 INFO L? ?]: Removed 147 outVars from TransFormulas that were not future-live. [2024-11-16 03:11:06,865 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 03:11:06,884 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 03:11:06,886 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 03:11:06,886 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 03:11:06 BoogieIcfgContainer [2024-11-16 03:11:06,887 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 03:11:06,888 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 03:11:06,889 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 03:11:06,891 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 03:11:06,891 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 03:11:04" (1/3) ... [2024-11-16 03:11:06,892 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d34285f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 03:11:06, skipping insertion in model container [2024-11-16 03:11:06,892 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:11:05" (2/3) ... [2024-11-16 03:11:06,893 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d34285f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 03:11:06, skipping insertion in model container [2024-11-16 03:11:06,893 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 03:11:06" (3/3) ... [2024-11-16 03:11:06,894 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem03_label59.c [2024-11-16 03:11:06,907 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 03:11:06,907 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-16 03:11:06,966 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 03:11:06,971 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;@13273aab, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 03:11:06,971 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-16 03:11:06,978 INFO L276 IsEmpty]: Start isEmpty. Operand has 305 states, 303 states have (on average 1.7227722772277227) internal successors, (522), 304 states have internal predecessors, (522), 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 03:11:06,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2024-11-16 03:11:06,991 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:11:06,991 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:11:06,992 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:11:06,996 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:11:06,997 INFO L85 PathProgramCache]: Analyzing trace with hash 435971657, now seen corresponding path program 1 times [2024-11-16 03:11:07,005 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:11:07,005 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1555605275] [2024-11-16 03:11:07,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:11:07,005 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:11:07,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:11:07,631 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 03:11:07,632 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:11:07,632 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1555605275] [2024-11-16 03:11:07,632 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1555605275] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:11:07,632 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:11:07,633 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 03:11:07,636 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1597038738] [2024-11-16 03:11:07,636 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:11:07,641 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:11:07,641 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:11:07,660 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:11:07,660 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:11:07,663 INFO L87 Difference]: Start difference. First operand has 305 states, 303 states have (on average 1.7227722772277227) internal successors, (522), 304 states have internal predecessors, (522), 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 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 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 03:11:08,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:11:08,498 INFO L93 Difference]: Finished difference Result 870 states and 1520 transitions. [2024-11-16 03:11:08,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:11:08,501 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 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 176 [2024-11-16 03:11:08,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:11:08,515 INFO L225 Difference]: With dead ends: 870 [2024-11-16 03:11:08,515 INFO L226 Difference]: Without dead ends: 471 [2024-11-16 03:11:08,521 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 03:11:08,523 INFO L432 NwaCegarLoop]: 131 mSDtfsCounter, 104 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 715 mSolverCounterSat, 107 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 170 SdHoareTripleChecker+Invalid, 822 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 107 IncrementalHoareTripleChecker+Valid, 715 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-16 03:11:08,523 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [104 Valid, 170 Invalid, 822 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [107 Valid, 715 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-16 03:11:08,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 471 states. [2024-11-16 03:11:08,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 471 to 457. [2024-11-16 03:11:08,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 457 states, 456 states have (on average 1.6228070175438596) internal successors, (740), 456 states have internal predecessors, (740), 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 03:11:08,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 457 states to 457 states and 740 transitions. [2024-11-16 03:11:08,565 INFO L78 Accepts]: Start accepts. Automaton has 457 states and 740 transitions. Word has length 176 [2024-11-16 03:11:08,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:11:08,565 INFO L471 AbstractCegarLoop]: Abstraction has 457 states and 740 transitions. [2024-11-16 03:11:08,567 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 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 03:11:08,567 INFO L276 IsEmpty]: Start isEmpty. Operand 457 states and 740 transitions. [2024-11-16 03:11:08,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2024-11-16 03:11:08,571 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:11:08,571 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-16 03:11:08,573 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 03:11:08,573 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:11:08,573 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:11:08,573 INFO L85 PathProgramCache]: Analyzing trace with hash 513533505, now seen corresponding path program 1 times [2024-11-16 03:11:08,574 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:11:08,574 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [947968601] [2024-11-16 03:11:08,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:11:08,574 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:11:08,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:11:08,846 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 03:11:08,847 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:11:08,847 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [947968601] [2024-11-16 03:11:08,847 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [947968601] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:11:08,848 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:11:08,848 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 03:11:08,848 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [799899] [2024-11-16 03:11:08,849 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:11:08,850 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:11:08,851 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:11:08,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:11:08,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:11:08,853 INFO L87 Difference]: Start difference. First operand 457 states and 740 transitions. Second operand has 3 states, 3 states have (on average 60.666666666666664) internal successors, (182), 2 states have internal predecessors, (182), 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 03:11:09,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:11:09,083 INFO L93 Difference]: Finished difference Result 1367 states and 2216 transitions. [2024-11-16 03:11:09,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:11:09,086 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 60.666666666666664) internal successors, (182), 2 states have internal predecessors, (182), 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 182 [2024-11-16 03:11:09,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:11:09,088 INFO L225 Difference]: With dead ends: 1367 [2024-11-16 03:11:09,089 INFO L226 Difference]: Without dead ends: 912 [2024-11-16 03:11:09,089 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 03:11:09,090 INFO L432 NwaCegarLoop]: 310 mSDtfsCounter, 367 mSDsluCounter, 290 mSDsCounter, 0 mSdLazyCounter, 173 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 367 SdHoareTripleChecker+Valid, 600 SdHoareTripleChecker+Invalid, 205 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 173 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 03:11:09,091 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [367 Valid, 600 Invalid, 205 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 173 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 03:11:09,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 912 states. [2024-11-16 03:11:09,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 912 to 909. [2024-11-16 03:11:09,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 909 states, 908 states have (on average 1.618942731277533) internal successors, (1470), 908 states have internal predecessors, (1470), 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 03:11:09,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 909 states to 909 states and 1470 transitions. [2024-11-16 03:11:09,117 INFO L78 Accepts]: Start accepts. Automaton has 909 states and 1470 transitions. Word has length 182 [2024-11-16 03:11:09,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:11:09,118 INFO L471 AbstractCegarLoop]: Abstraction has 909 states and 1470 transitions. [2024-11-16 03:11:09,118 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 60.666666666666664) internal successors, (182), 2 states have internal predecessors, (182), 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 03:11:09,118 INFO L276 IsEmpty]: Start isEmpty. Operand 909 states and 1470 transitions. [2024-11-16 03:11:09,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2024-11-16 03:11:09,121 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:11:09,122 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 03:11:09,122 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-16 03:11:09,122 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:11:09,123 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:11:09,123 INFO L85 PathProgramCache]: Analyzing trace with hash 1516598642, now seen corresponding path program 1 times [2024-11-16 03:11:09,123 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:11:09,123 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1512477584] [2024-11-16 03:11:09,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:11:09,123 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:11:09,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:11:09,299 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 03:11:09,300 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:11:09,300 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1512477584] [2024-11-16 03:11:09,300 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1512477584] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:11:09,300 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:11:09,300 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 03:11:09,300 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1159438748] [2024-11-16 03:11:09,300 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:11:09,301 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:11:09,301 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:11:09,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:11:09,301 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:11:09,301 INFO L87 Difference]: Start difference. First operand 909 states and 1470 transitions. Second operand has 3 states, 3 states have (on average 61.0) internal successors, (183), 2 states have internal predecessors, (183), 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 03:11:09,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:11:09,930 INFO L93 Difference]: Finished difference Result 2634 states and 4284 transitions. [2024-11-16 03:11:09,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:11:09,930 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 61.0) internal successors, (183), 2 states have internal predecessors, (183), 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 183 [2024-11-16 03:11:09,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:11:09,935 INFO L225 Difference]: With dead ends: 2634 [2024-11-16 03:11:09,935 INFO L226 Difference]: Without dead ends: 1727 [2024-11-16 03:11:09,936 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 03:11:09,937 INFO L432 NwaCegarLoop]: 167 mSDtfsCounter, 218 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 573 mSolverCounterSat, 126 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 218 SdHoareTripleChecker+Valid, 201 SdHoareTripleChecker+Invalid, 699 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 126 IncrementalHoareTripleChecker+Valid, 573 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-16 03:11:09,937 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [218 Valid, 201 Invalid, 699 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [126 Valid, 573 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-16 03:11:09,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1727 states. [2024-11-16 03:11:09,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1727 to 1727. [2024-11-16 03:11:09,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1727 states, 1726 states have (on average 1.4020857473928157) internal successors, (2420), 1726 states have internal predecessors, (2420), 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 03:11:09,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1727 states to 1727 states and 2420 transitions. [2024-11-16 03:11:09,961 INFO L78 Accepts]: Start accepts. Automaton has 1727 states and 2420 transitions. Word has length 183 [2024-11-16 03:11:09,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:11:09,961 INFO L471 AbstractCegarLoop]: Abstraction has 1727 states and 2420 transitions. [2024-11-16 03:11:09,961 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 61.0) internal successors, (183), 2 states have internal predecessors, (183), 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 03:11:09,961 INFO L276 IsEmpty]: Start isEmpty. Operand 1727 states and 2420 transitions. [2024-11-16 03:11:09,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2024-11-16 03:11:09,964 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:11:09,964 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-16 03:11:09,964 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-16 03:11:09,964 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:11:09,965 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:11:09,965 INFO L85 PathProgramCache]: Analyzing trace with hash 942731599, now seen corresponding path program 1 times [2024-11-16 03:11:09,965 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:11:09,965 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2127759180] [2024-11-16 03:11:09,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:11:09,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:11:10,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:11:10,085 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 03:11:10,085 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:11:10,085 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2127759180] [2024-11-16 03:11:10,085 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2127759180] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:11:10,086 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:11:10,086 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 03:11:10,086 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1619889637] [2024-11-16 03:11:10,086 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:11:10,087 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:11:10,087 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:11:10,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:11:10,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:11:10,088 INFO L87 Difference]: Start difference. First operand 1727 states and 2420 transitions. Second operand has 3 states, 3 states have (on average 61.666666666666664) internal successors, (185), 2 states have internal predecessors, (185), 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 03:11:10,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:11:10,725 INFO L93 Difference]: Finished difference Result 5115 states and 7189 transitions. [2024-11-16 03:11:10,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:11:10,726 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 61.666666666666664) internal successors, (185), 2 states have internal predecessors, (185), 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 185 [2024-11-16 03:11:10,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:11:10,734 INFO L225 Difference]: With dead ends: 5115 [2024-11-16 03:11:10,734 INFO L226 Difference]: Without dead ends: 3390 [2024-11-16 03:11:10,735 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 03:11:10,736 INFO L432 NwaCegarLoop]: 79 mSDtfsCounter, 250 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 584 mSolverCounterSat, 195 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 250 SdHoareTripleChecker+Valid, 94 SdHoareTripleChecker+Invalid, 779 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 195 IncrementalHoareTripleChecker+Valid, 584 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-16 03:11:10,737 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [250 Valid, 94 Invalid, 779 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [195 Valid, 584 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-16 03:11:10,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3390 states. [2024-11-16 03:11:10,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3390 to 3362. [2024-11-16 03:11:10,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3362 states, 3361 states have (on average 1.3766736090449272) internal successors, (4627), 3361 states have internal predecessors, (4627), 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 03:11:10,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3362 states to 3362 states and 4627 transitions. [2024-11-16 03:11:10,785 INFO L78 Accepts]: Start accepts. Automaton has 3362 states and 4627 transitions. Word has length 185 [2024-11-16 03:11:10,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:11:10,785 INFO L471 AbstractCegarLoop]: Abstraction has 3362 states and 4627 transitions. [2024-11-16 03:11:10,785 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 61.666666666666664) internal successors, (185), 2 states have internal predecessors, (185), 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 03:11:10,786 INFO L276 IsEmpty]: Start isEmpty. Operand 3362 states and 4627 transitions. [2024-11-16 03:11:10,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2024-11-16 03:11:10,789 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:11:10,789 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 03:11:10,790 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-16 03:11:10,790 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:11:10,790 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:11:10,790 INFO L85 PathProgramCache]: Analyzing trace with hash -1297059131, now seen corresponding path program 1 times [2024-11-16 03:11:10,790 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:11:10,791 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [579955584] [2024-11-16 03:11:10,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:11:10,791 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:11:10,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:11:11,065 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 03:11:11,066 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:11:11,066 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [579955584] [2024-11-16 03:11:11,066 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [579955584] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:11:11,066 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:11:11,066 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 03:11:11,066 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1408600752] [2024-11-16 03:11:11,066 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:11:11,067 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:11:11,067 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:11:11,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:11:11,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:11:11,068 INFO L87 Difference]: Start difference. First operand 3362 states and 4627 transitions. Second operand has 3 states, 3 states have (on average 63.0) internal successors, (189), 2 states have internal predecessors, (189), 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 03:11:11,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:11:11,748 INFO L93 Difference]: Finished difference Result 10032 states and 13811 transitions. [2024-11-16 03:11:11,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:11:11,749 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 63.0) internal successors, (189), 2 states have internal predecessors, (189), 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 189 [2024-11-16 03:11:11,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:11:11,765 INFO L225 Difference]: With dead ends: 10032 [2024-11-16 03:11:11,765 INFO L226 Difference]: Without dead ends: 6672 [2024-11-16 03:11:11,769 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 03:11:11,770 INFO L432 NwaCegarLoop]: 74 mSDtfsCounter, 287 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 682 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 287 SdHoareTripleChecker+Valid, 102 SdHoareTripleChecker+Invalid, 754 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 682 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-16 03:11:11,770 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [287 Valid, 102 Invalid, 754 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 682 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-16 03:11:11,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6672 states. [2024-11-16 03:11:11,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6672 to 6666. [2024-11-16 03:11:11,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6666 states, 6665 states have (on average 1.350787696924231) internal successors, (9003), 6665 states have internal predecessors, (9003), 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 03:11:11,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6666 states to 6666 states and 9003 transitions. [2024-11-16 03:11:11,897 INFO L78 Accepts]: Start accepts. Automaton has 6666 states and 9003 transitions. Word has length 189 [2024-11-16 03:11:11,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:11:11,897 INFO L471 AbstractCegarLoop]: Abstraction has 6666 states and 9003 transitions. [2024-11-16 03:11:11,898 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 63.0) internal successors, (189), 2 states have internal predecessors, (189), 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 03:11:11,898 INFO L276 IsEmpty]: Start isEmpty. Operand 6666 states and 9003 transitions. [2024-11-16 03:11:11,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2024-11-16 03:11:11,905 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:11:11,905 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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] [2024-11-16 03:11:11,905 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-16 03:11:11,905 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:11:11,906 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:11:11,906 INFO L85 PathProgramCache]: Analyzing trace with hash 2092140188, now seen corresponding path program 1 times [2024-11-16 03:11:11,906 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:11:11,906 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1006285490] [2024-11-16 03:11:11,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:11:11,906 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:11:11,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:11:12,056 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-16 03:11:12,056 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:11:12,057 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1006285490] [2024-11-16 03:11:12,057 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1006285490] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:11:12,057 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:11:12,057 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:11:12,057 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [952931740] [2024-11-16 03:11:12,057 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:11:12,058 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:11:12,058 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:11:12,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:11:12,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:11:12,059 INFO L87 Difference]: Start difference. First operand 6666 states and 9003 transitions. Second operand has 3 states, 3 states have (on average 62.333333333333336) internal successors, (187), 3 states have internal predecessors, (187), 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 03:11:12,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:11:12,732 INFO L93 Difference]: Finished difference Result 19880 states and 26858 transitions. [2024-11-16 03:11:12,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:11:12,733 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 62.333333333333336) internal successors, (187), 3 states have internal predecessors, (187), 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 193 [2024-11-16 03:11:12,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:11:12,764 INFO L225 Difference]: With dead ends: 19880 [2024-11-16 03:11:12,764 INFO L226 Difference]: Without dead ends: 13216 [2024-11-16 03:11:12,772 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 03:11:12,773 INFO L432 NwaCegarLoop]: 358 mSDtfsCounter, 91 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 574 mSolverCounterSat, 143 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 386 SdHoareTripleChecker+Invalid, 717 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 143 IncrementalHoareTripleChecker+Valid, 574 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-16 03:11:12,773 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 386 Invalid, 717 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [143 Valid, 574 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-16 03:11:12,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13216 states. [2024-11-16 03:11:12,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13216 to 11574. [2024-11-16 03:11:12,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11574 states, 11573 states have (on average 1.2940464875140414) internal successors, (14976), 11573 states have internal predecessors, (14976), 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 03:11:12,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11574 states to 11574 states and 14976 transitions. [2024-11-16 03:11:12,930 INFO L78 Accepts]: Start accepts. Automaton has 11574 states and 14976 transitions. Word has length 193 [2024-11-16 03:11:12,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:11:12,931 INFO L471 AbstractCegarLoop]: Abstraction has 11574 states and 14976 transitions. [2024-11-16 03:11:12,931 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 62.333333333333336) internal successors, (187), 3 states have internal predecessors, (187), 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 03:11:12,931 INFO L276 IsEmpty]: Start isEmpty. Operand 11574 states and 14976 transitions. [2024-11-16 03:11:12,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2024-11-16 03:11:12,941 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:11:12,941 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 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] [2024-11-16 03:11:12,942 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-16 03:11:12,942 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:11:12,942 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:11:12,942 INFO L85 PathProgramCache]: Analyzing trace with hash -820745280, now seen corresponding path program 1 times [2024-11-16 03:11:12,942 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:11:12,942 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1457337466] [2024-11-16 03:11:12,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:11:12,943 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:11:12,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:11:13,101 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-16 03:11:13,102 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:11:13,102 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1457337466] [2024-11-16 03:11:13,102 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1457337466] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:11:13,102 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:11:13,102 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:11:13,102 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [75524538] [2024-11-16 03:11:13,102 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:11:13,103 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:11:13,103 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:11:13,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:11:13,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:11:13,104 INFO L87 Difference]: Start difference. First operand 11574 states and 14976 transitions. Second operand has 3 states, 3 states have (on average 64.66666666666667) internal successors, (194), 3 states have internal predecessors, (194), 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 03:11:13,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:11:13,777 INFO L93 Difference]: Finished difference Result 28870 states and 38453 transitions. [2024-11-16 03:11:13,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:11:13,778 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 64.66666666666667) internal successors, (194), 3 states have internal predecessors, (194), 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 200 [2024-11-16 03:11:13,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:11:13,816 INFO L225 Difference]: With dead ends: 28870 [2024-11-16 03:11:13,816 INFO L226 Difference]: Without dead ends: 17298 [2024-11-16 03:11:13,832 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 03:11:13,834 INFO L432 NwaCegarLoop]: 378 mSDtfsCounter, 235 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 526 mSolverCounterSat, 173 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 235 SdHoareTripleChecker+Valid, 409 SdHoareTripleChecker+Invalid, 699 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 173 IncrementalHoareTripleChecker+Valid, 526 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-16 03:11:13,835 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [235 Valid, 409 Invalid, 699 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [173 Valid, 526 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-16 03:11:13,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17298 states. [2024-11-16 03:11:14,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17298 to 15658. [2024-11-16 03:11:14,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15658 states, 15657 states have (on average 1.252985884907709) internal successors, (19618), 15657 states have internal predecessors, (19618), 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 03:11:14,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15658 states to 15658 states and 19618 transitions. [2024-11-16 03:11:14,059 INFO L78 Accepts]: Start accepts. Automaton has 15658 states and 19618 transitions. Word has length 200 [2024-11-16 03:11:14,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:11:14,059 INFO L471 AbstractCegarLoop]: Abstraction has 15658 states and 19618 transitions. [2024-11-16 03:11:14,060 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 64.66666666666667) internal successors, (194), 3 states have internal predecessors, (194), 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 03:11:14,060 INFO L276 IsEmpty]: Start isEmpty. Operand 15658 states and 19618 transitions. [2024-11-16 03:11:14,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 275 [2024-11-16 03:11:14,074 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:11:14,074 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:11:14,074 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-16 03:11:14,075 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:11:14,075 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:11:14,075 INFO L85 PathProgramCache]: Analyzing trace with hash -2119583704, now seen corresponding path program 1 times [2024-11-16 03:11:14,075 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:11:14,075 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1635315545] [2024-11-16 03:11:14,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:11:14,076 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:11:14,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:11:14,403 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 118 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-16 03:11:14,403 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:11:14,403 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1635315545] [2024-11-16 03:11:14,403 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1635315545] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:11:14,403 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:11:14,404 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:11:14,404 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [37942864] [2024-11-16 03:11:14,404 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:11:14,404 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 03:11:14,404 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:11:14,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 03:11:14,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-16 03:11:14,405 INFO L87 Difference]: Start difference. First operand 15658 states and 19618 transitions. Second operand has 4 states, 4 states have (on average 66.0) internal successors, (264), 3 states have internal predecessors, (264), 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 03:11:15,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:11:15,170 INFO L93 Difference]: Finished difference Result 42288 states and 52702 transitions. [2024-11-16 03:11:15,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 03:11:15,170 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 66.0) internal successors, (264), 3 states have internal predecessors, (264), 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 274 [2024-11-16 03:11:15,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:11:15,205 INFO L225 Difference]: With dead ends: 42288 [2024-11-16 03:11:15,205 INFO L226 Difference]: Without dead ends: 26632 [2024-11-16 03:11:15,222 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 03:11:15,222 INFO L432 NwaCegarLoop]: 40 mSDtfsCounter, 453 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 833 mSolverCounterSat, 157 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 453 SdHoareTripleChecker+Valid, 63 SdHoareTripleChecker+Invalid, 990 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 157 IncrementalHoareTripleChecker+Valid, 833 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-16 03:11:15,222 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [453 Valid, 63 Invalid, 990 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [157 Valid, 833 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-16 03:11:15,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26632 states. [2024-11-16 03:11:15,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26632 to 26628. [2024-11-16 03:11:15,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26628 states, 26627 states have (on average 1.1789912494836068) internal successors, (31393), 26627 states have internal predecessors, (31393), 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 03:11:15,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26628 states to 26628 states and 31393 transitions. [2024-11-16 03:11:15,523 INFO L78 Accepts]: Start accepts. Automaton has 26628 states and 31393 transitions. Word has length 274 [2024-11-16 03:11:15,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:11:15,524 INFO L471 AbstractCegarLoop]: Abstraction has 26628 states and 31393 transitions. [2024-11-16 03:11:15,524 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 66.0) internal successors, (264), 3 states have internal predecessors, (264), 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 03:11:15,524 INFO L276 IsEmpty]: Start isEmpty. Operand 26628 states and 31393 transitions. [2024-11-16 03:11:15,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 280 [2024-11-16 03:11:15,536 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:11:15,536 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 03:11:15,537 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-16 03:11:15,537 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:11:15,537 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:11:15,537 INFO L85 PathProgramCache]: Analyzing trace with hash 1228479346, now seen corresponding path program 1 times [2024-11-16 03:11:15,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:11:15,537 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [429488434] [2024-11-16 03:11:15,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:11:15,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:11:15,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:11:15,889 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 0 proven. 102 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 03:11:15,889 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:11:15,890 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [429488434] [2024-11-16 03:11:15,890 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [429488434] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 03:11:15,890 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [53230896] [2024-11-16 03:11:15,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:11:15,890 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 03:11:15,890 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 03:11:15,892 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 03:11:15,893 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 03:11:16,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:11:16,022 INFO L255 TraceCheckSpWp]: Trace formula consists of 436 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-16 03:11:16,030 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 03:11:16,197 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 03:11:16,197 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 03:11:16,198 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [53230896] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:11:16,198 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 03:11:16,198 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2024-11-16 03:11:16,198 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1849320890] [2024-11-16 03:11:16,198 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:11:16,199 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:11:16,199 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:11:16,199 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:11:16,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-16 03:11:16,200 INFO L87 Difference]: Start difference. First operand 26628 states and 31393 transitions. Second operand has 3 states, 3 states have (on average 93.0) internal successors, (279), 3 states have internal predecessors, (279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:11:16,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:11:16,807 INFO L93 Difference]: Finished difference Result 53282 states and 62838 transitions. [2024-11-16 03:11:16,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:11:16,808 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 93.0) internal successors, (279), 3 states have internal predecessors, (279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 279 [2024-11-16 03:11:16,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:11:16,842 INFO L225 Difference]: With dead ends: 53282 [2024-11-16 03:11:16,842 INFO L226 Difference]: Without dead ends: 26656 [2024-11-16 03:11:16,866 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 281 GetRequests, 278 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-16 03:11:16,867 INFO L432 NwaCegarLoop]: 356 mSDtfsCounter, 51 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 664 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 373 SdHoareTripleChecker+Invalid, 710 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 664 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-16 03:11:16,867 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 373 Invalid, 710 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 664 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-16 03:11:16,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26656 states. [2024-11-16 03:11:17,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26656 to 26628. [2024-11-16 03:11:17,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26628 states, 26627 states have (on average 1.1704285124122131) internal successors, (31165), 26627 states have internal predecessors, (31165), 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 03:11:17,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26628 states to 26628 states and 31165 transitions. [2024-11-16 03:11:17,220 INFO L78 Accepts]: Start accepts. Automaton has 26628 states and 31165 transitions. Word has length 279 [2024-11-16 03:11:17,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:11:17,221 INFO L471 AbstractCegarLoop]: Abstraction has 26628 states and 31165 transitions. [2024-11-16 03:11:17,222 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 93.0) internal successors, (279), 3 states have internal predecessors, (279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:11:17,222 INFO L276 IsEmpty]: Start isEmpty. Operand 26628 states and 31165 transitions. [2024-11-16 03:11:17,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 281 [2024-11-16 03:11:17,237 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:11:17,237 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:11:17,251 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 03:11:17,441 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 03:11:17,442 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:11:17,442 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:11:17,442 INFO L85 PathProgramCache]: Analyzing trace with hash -1812249093, now seen corresponding path program 1 times [2024-11-16 03:11:17,443 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:11:17,443 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [919794982] [2024-11-16 03:11:17,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:11:17,443 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:11:17,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:11:17,789 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 105 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 03:11:17,790 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:11:17,790 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [919794982] [2024-11-16 03:11:17,790 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [919794982] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:11:17,790 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:11:17,790 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:11:17,790 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1014658534] [2024-11-16 03:11:17,790 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:11:17,791 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 03:11:17,791 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:11:17,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 03:11:17,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-16 03:11:17,792 INFO L87 Difference]: Start difference. First operand 26628 states and 31165 transitions. Second operand has 4 states, 4 states have (on average 70.0) internal successors, (280), 3 states have internal predecessors, (280), 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 03:11:18,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:11:18,669 INFO L93 Difference]: Finished difference Result 60638 states and 71157 transitions. [2024-11-16 03:11:18,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 03:11:18,670 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 70.0) internal successors, (280), 3 states have internal predecessors, (280), 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 280 [2024-11-16 03:11:18,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:11:18,704 INFO L225 Difference]: With dead ends: 60638 [2024-11-16 03:11:18,704 INFO L226 Difference]: Without dead ends: 34012 [2024-11-16 03:11:18,724 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 03:11:18,724 INFO L432 NwaCegarLoop]: 60 mSDtfsCounter, 473 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 895 mSolverCounterSat, 219 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 473 SdHoareTripleChecker+Valid, 84 SdHoareTripleChecker+Invalid, 1114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 219 IncrementalHoareTripleChecker+Valid, 895 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-16 03:11:18,724 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [473 Valid, 84 Invalid, 1114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [219 Valid, 895 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-16 03:11:18,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34012 states. [2024-11-16 03:11:19,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34012 to 33972. [2024-11-16 03:11:19,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33972 states, 33971 states have (on average 1.153925406964764) internal successors, (39200), 33971 states have internal predecessors, (39200), 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 03:11:19,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33972 states to 33972 states and 39200 transitions. [2024-11-16 03:11:19,139 INFO L78 Accepts]: Start accepts. Automaton has 33972 states and 39200 transitions. Word has length 280 [2024-11-16 03:11:19,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:11:19,140 INFO L471 AbstractCegarLoop]: Abstraction has 33972 states and 39200 transitions. [2024-11-16 03:11:19,140 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 70.0) internal successors, (280), 3 states have internal predecessors, (280), 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 03:11:19,140 INFO L276 IsEmpty]: Start isEmpty. Operand 33972 states and 39200 transitions. [2024-11-16 03:11:19,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 287 [2024-11-16 03:11:19,155 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:11:19,155 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-16 03:11:19,155 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-16 03:11:19,155 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:11:19,156 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:11:19,156 INFO L85 PathProgramCache]: Analyzing trace with hash -425164886, now seen corresponding path program 1 times [2024-11-16 03:11:19,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:11:19,156 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [51579253] [2024-11-16 03:11:19,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:11:19,156 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:11:19,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:11:19,338 INFO L134 CoverageAnalysis]: Checked inductivity of 142 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2024-11-16 03:11:19,339 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:11:19,339 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [51579253] [2024-11-16 03:11:19,339 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [51579253] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:11:19,339 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:11:19,339 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 03:11:19,339 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1228656626] [2024-11-16 03:11:19,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:11:19,340 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:11:19,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:11:19,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:11:19,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:11:19,341 INFO L87 Difference]: Start difference. First operand 33972 states and 39200 transitions. Second operand has 3 states, 3 states have (on average 70.33333333333333) internal successors, (211), 2 states have internal predecessors, (211), 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 03:11:20,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:11:20,143 INFO L93 Difference]: Finished difference Result 84125 states and 97219 transitions. [2024-11-16 03:11:20,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:11:20,144 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 70.33333333333333) internal successors, (211), 2 states have internal predecessors, (211), 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 286 [2024-11-16 03:11:20,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:11:20,192 INFO L225 Difference]: With dead ends: 84125 [2024-11-16 03:11:20,192 INFO L226 Difference]: Without dead ends: 50155 [2024-11-16 03:11:20,221 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 03:11:20,221 INFO L432 NwaCegarLoop]: 136 mSDtfsCounter, 206 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 624 mSolverCounterSat, 85 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 206 SdHoareTripleChecker+Valid, 151 SdHoareTripleChecker+Invalid, 709 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 85 IncrementalHoareTripleChecker+Valid, 624 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-16 03:11:20,222 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [206 Valid, 151 Invalid, 709 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [85 Valid, 624 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-16 03:11:20,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50155 states. [2024-11-16 03:11:20,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50155 to 50148. [2024-11-16 03:11:20,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50148 states, 50147 states have (on average 1.154465870341197) internal successors, (57893), 50147 states have internal predecessors, (57893), 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 03:11:20,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50148 states to 50148 states and 57893 transitions. [2024-11-16 03:11:20,881 INFO L78 Accepts]: Start accepts. Automaton has 50148 states and 57893 transitions. Word has length 286 [2024-11-16 03:11:20,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:11:20,882 INFO L471 AbstractCegarLoop]: Abstraction has 50148 states and 57893 transitions. [2024-11-16 03:11:20,882 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 70.33333333333333) internal successors, (211), 2 states have internal predecessors, (211), 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 03:11:20,882 INFO L276 IsEmpty]: Start isEmpty. Operand 50148 states and 57893 transitions. [2024-11-16 03:11:20,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 295 [2024-11-16 03:11:20,901 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:11:20,901 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:11:20,901 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-16 03:11:20,901 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:11:20,902 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:11:20,902 INFO L85 PathProgramCache]: Analyzing trace with hash -888664451, now seen corresponding path program 1 times [2024-11-16 03:11:20,902 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:11:20,902 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [213098705] [2024-11-16 03:11:20,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:11:20,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:11:21,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:11:21,409 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 81 proven. 7 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2024-11-16 03:11:21,409 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:11:21,409 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [213098705] [2024-11-16 03:11:21,409 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [213098705] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 03:11:21,409 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1599760296] [2024-11-16 03:11:21,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:11:21,409 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 03:11:21,410 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 03:11:21,411 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 03:11:21,412 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-16 03:11:21,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:11:21,546 INFO L255 TraceCheckSpWp]: Trace formula consists of 567 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-16 03:11:21,550 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 03:11:21,720 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 122 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-11-16 03:11:21,720 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 03:11:21,720 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1599760296] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:11:21,720 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 03:11:21,721 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2024-11-16 03:11:21,721 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1912169025] [2024-11-16 03:11:21,721 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:11:21,721 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:11:21,721 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:11:21,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:11:21,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 03:11:21,722 INFO L87 Difference]: Start difference. First operand 50148 states and 57893 transitions. Second operand has 3 states, 3 states have (on average 85.33333333333333) internal successors, (256), 3 states have internal predecessors, (256), 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 03:11:22,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:11:22,397 INFO L93 Difference]: Finished difference Result 99494 states and 114954 transitions. [2024-11-16 03:11:22,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:11:22,398 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 85.33333333333333) internal successors, (256), 3 states have internal predecessors, (256), 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 294 [2024-11-16 03:11:22,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:11:22,456 INFO L225 Difference]: With dead ends: 99494 [2024-11-16 03:11:22,456 INFO L226 Difference]: Without dead ends: 49348 [2024-11-16 03:11:22,481 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 296 GetRequests, 293 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 03:11:22,481 INFO L432 NwaCegarLoop]: 285 mSDtfsCounter, 87 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 608 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 296 SdHoareTripleChecker+Invalid, 632 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 608 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-16 03:11:22,481 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 296 Invalid, 632 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 608 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-16 03:11:22,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49348 states. [2024-11-16 03:11:22,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49348 to 47700. [2024-11-16 03:11:22,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47700 states, 47699 states have (on average 1.1433153734879138) internal successors, (54535), 47699 states have internal predecessors, (54535), 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 03:11:23,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47700 states to 47700 states and 54535 transitions. [2024-11-16 03:11:23,029 INFO L78 Accepts]: Start accepts. Automaton has 47700 states and 54535 transitions. Word has length 294 [2024-11-16 03:11:23,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:11:23,030 INFO L471 AbstractCegarLoop]: Abstraction has 47700 states and 54535 transitions. [2024-11-16 03:11:23,030 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 85.33333333333333) internal successors, (256), 3 states have internal predecessors, (256), 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 03:11:23,030 INFO L276 IsEmpty]: Start isEmpty. Operand 47700 states and 54535 transitions. [2024-11-16 03:11:23,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 338 [2024-11-16 03:11:23,054 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:11:23,054 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:11:23,068 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-16 03:11:23,255 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-11-16 03:11:23,255 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:11:23,256 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:11:23,256 INFO L85 PathProgramCache]: Analyzing trace with hash -1680455263, now seen corresponding path program 1 times [2024-11-16 03:11:23,256 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:11:23,256 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [849315312] [2024-11-16 03:11:23,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:11:23,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:11:23,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:11:23,763 INFO L134 CoverageAnalysis]: Checked inductivity of 297 backedges. 117 proven. 7 refuted. 0 times theorem prover too weak. 173 trivial. 0 not checked. [2024-11-16 03:11:23,764 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:11:23,764 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [849315312] [2024-11-16 03:11:23,764 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [849315312] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 03:11:23,764 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1971157337] [2024-11-16 03:11:23,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:11:23,764 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 03:11:23,764 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 03:11:23,765 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 03:11:23,766 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-16 03:11:23,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:11:23,952 INFO L255 TraceCheckSpWp]: Trace formula consists of 644 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-16 03:11:23,956 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 03:11:24,059 INFO L134 CoverageAnalysis]: Checked inductivity of 297 backedges. 197 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2024-11-16 03:11:24,060 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 03:11:24,060 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1971157337] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:11:24,060 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 03:11:24,060 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 4 [2024-11-16 03:11:24,060 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1144632669] [2024-11-16 03:11:24,060 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:11:24,060 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:11:24,061 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:11:24,061 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:11:24,061 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 03:11:24,061 INFO L87 Difference]: Start difference. First operand 47700 states and 54535 transitions. Second operand has 3 states, 3 states have (on average 85.66666666666667) internal successors, (257), 2 states have internal predecessors, (257), 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 03:11:24,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:11:24,440 INFO L93 Difference]: Finished difference Result 95390 states and 109060 transitions. [2024-11-16 03:11:24,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:11:24,440 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 85.66666666666667) internal successors, (257), 2 states have internal predecessors, (257), 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 337 [2024-11-16 03:11:24,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:11:24,488 INFO L225 Difference]: With dead ends: 95390 [2024-11-16 03:11:24,488 INFO L226 Difference]: Without dead ends: 47692 [2024-11-16 03:11:24,522 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 339 GetRequests, 336 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 03:11:24,523 INFO L432 NwaCegarLoop]: 31 mSDtfsCounter, 276 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 324 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 276 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 324 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 324 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 03:11:24,523 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [276 Valid, 31 Invalid, 324 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 324 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 03:11:24,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47692 states. [2024-11-16 03:11:25,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47692 to 47688. [2024-11-16 03:11:25,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47688 states, 47687 states have (on average 1.1431836768930737) internal successors, (54515), 47687 states have internal predecessors, (54515), 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 03:11:25,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47688 states to 47688 states and 54515 transitions. [2024-11-16 03:11:25,176 INFO L78 Accepts]: Start accepts. Automaton has 47688 states and 54515 transitions. Word has length 337 [2024-11-16 03:11:25,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:11:25,177 INFO L471 AbstractCegarLoop]: Abstraction has 47688 states and 54515 transitions. [2024-11-16 03:11:25,177 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 85.66666666666667) internal successors, (257), 2 states have internal predecessors, (257), 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 03:11:25,177 INFO L276 IsEmpty]: Start isEmpty. Operand 47688 states and 54515 transitions. [2024-11-16 03:11:25,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 347 [2024-11-16 03:11:25,208 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:11:25,209 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 2, 2, 2, 2, 2, 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] [2024-11-16 03:11:25,221 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-16 03:11:25,412 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 03:11:25,413 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:11:25,413 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:11:25,413 INFO L85 PathProgramCache]: Analyzing trace with hash -1824393600, now seen corresponding path program 1 times [2024-11-16 03:11:25,413 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:11:25,413 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [395427956] [2024-11-16 03:11:25,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:11:25,414 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:11:25,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:11:25,894 INFO L134 CoverageAnalysis]: Checked inductivity of 344 backedges. 131 proven. 7 refuted. 0 times theorem prover too weak. 206 trivial. 0 not checked. [2024-11-16 03:11:25,895 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:11:25,895 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [395427956] [2024-11-16 03:11:25,895 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [395427956] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 03:11:25,895 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1282207542] [2024-11-16 03:11:25,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:11:25,895 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 03:11:25,895 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 03:11:25,896 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 03:11:25,897 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-16 03:11:26,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:11:26,038 INFO L255 TraceCheckSpWp]: Trace formula consists of 653 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-16 03:11:26,042 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 03:11:26,073 INFO L134 CoverageAnalysis]: Checked inductivity of 344 backedges. 258 proven. 0 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2024-11-16 03:11:26,073 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 03:11:26,073 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1282207542] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:11:26,073 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 03:11:26,073 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2024-11-16 03:11:26,073 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [631149750] [2024-11-16 03:11:26,073 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:11:26,074 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:11:26,074 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:11:26,075 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:11:26,075 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 03:11:26,075 INFO L87 Difference]: Start difference. First operand 47688 states and 54515 transitions. Second operand has 3 states, 3 states have (on average 90.0) internal successors, (270), 3 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:11:26,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:11:26,531 INFO L93 Difference]: Finished difference Result 137696 states and 157488 transitions. [2024-11-16 03:11:26,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:11:26,532 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 90.0) internal successors, (270), 3 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 346 [2024-11-16 03:11:26,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:11:26,629 INFO L225 Difference]: With dead ends: 137696 [2024-11-16 03:11:26,629 INFO L226 Difference]: Without dead ends: 90010 [2024-11-16 03:11:26,671 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 348 GetRequests, 345 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 03:11:26,672 INFO L432 NwaCegarLoop]: 584 mSDtfsCounter, 289 mSDsluCounter, 262 mSDsCounter, 0 mSdLazyCounter, 145 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 289 SdHoareTripleChecker+Valid, 846 SdHoareTripleChecker+Invalid, 175 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 145 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 03:11:26,672 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [289 Valid, 846 Invalid, 175 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 145 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 03:11:26,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90010 states. [2024-11-16 03:11:27,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90010 to 90007. [2024-11-16 03:11:27,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90007 states, 90006 states have (on average 1.1324022842921584) internal successors, (101923), 90006 states have internal predecessors, (101923), 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 03:11:27,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90007 states to 90007 states and 101923 transitions. [2024-11-16 03:11:27,775 INFO L78 Accepts]: Start accepts. Automaton has 90007 states and 101923 transitions. Word has length 346 [2024-11-16 03:11:27,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:11:27,776 INFO L471 AbstractCegarLoop]: Abstraction has 90007 states and 101923 transitions. [2024-11-16 03:11:27,776 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 90.0) internal successors, (270), 3 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:11:27,776 INFO L276 IsEmpty]: Start isEmpty. Operand 90007 states and 101923 transitions. [2024-11-16 03:11:27,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 348 [2024-11-16 03:11:27,819 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:11:27,819 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 03:11:27,833 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-16 03:11:28,019 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 03:11:28,020 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:11:28,020 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:11:28,020 INFO L85 PathProgramCache]: Analyzing trace with hash -1817814586, now seen corresponding path program 1 times [2024-11-16 03:11:28,021 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:11:28,021 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [623934364] [2024-11-16 03:11:28,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:11:28,021 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:11:28,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:11:28,584 INFO L134 CoverageAnalysis]: Checked inductivity of 307 backedges. 108 proven. 7 refuted. 0 times theorem prover too weak. 192 trivial. 0 not checked. [2024-11-16 03:11:28,584 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:11:28,584 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [623934364] [2024-11-16 03:11:28,584 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [623934364] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 03:11:28,584 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [746635147] [2024-11-16 03:11:28,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:11:28,584 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 03:11:28,584 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 03:11:28,586 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 03:11:28,587 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-16 03:11:28,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:11:28,724 INFO L255 TraceCheckSpWp]: Trace formula consists of 623 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-16 03:11:28,727 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 03:11:28,848 INFO L134 CoverageAnalysis]: Checked inductivity of 307 backedges. 168 proven. 0 refuted. 0 times theorem prover too weak. 139 trivial. 0 not checked. [2024-11-16 03:11:28,848 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 03:11:28,848 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [746635147] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:11:28,848 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 03:11:28,848 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2024-11-16 03:11:28,849 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1828797535] [2024-11-16 03:11:28,849 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:11:28,849 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:11:28,849 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:11:28,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:11:28,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 03:11:28,850 INFO L87 Difference]: Start difference. First operand 90007 states and 101923 transitions. Second operand has 3 states, 3 states have (on average 84.66666666666667) internal successors, (254), 3 states have internal predecessors, (254), 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 03:11:29,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:11:29,805 INFO L93 Difference]: Finished difference Result 228384 states and 258017 transitions. [2024-11-16 03:11:29,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:11:29,805 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 84.66666666666667) internal successors, (254), 3 states have internal predecessors, (254), 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 347 [2024-11-16 03:11:29,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:11:29,956 INFO L225 Difference]: With dead ends: 228384 [2024-11-16 03:11:29,956 INFO L226 Difference]: Without dead ends: 138379 [2024-11-16 03:11:30,031 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 349 GetRequests, 346 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 03:11:30,032 INFO L432 NwaCegarLoop]: 325 mSDtfsCounter, 81 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 521 mSolverCounterSat, 149 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 343 SdHoareTripleChecker+Invalid, 670 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 149 IncrementalHoareTripleChecker+Valid, 521 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-16 03:11:30,032 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 343 Invalid, 670 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [149 Valid, 521 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-16 03:11:30,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138379 states. [2024-11-16 03:11:31,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138379 to 134691. [2024-11-16 03:11:31,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134691 states, 134690 states have (on average 1.1034969188506942) internal successors, (148630), 134690 states have internal predecessors, (148630), 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 03:11:32,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134691 states to 134691 states and 148630 transitions. [2024-11-16 03:11:32,110 INFO L78 Accepts]: Start accepts. Automaton has 134691 states and 148630 transitions. Word has length 347 [2024-11-16 03:11:32,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:11:32,111 INFO L471 AbstractCegarLoop]: Abstraction has 134691 states and 148630 transitions. [2024-11-16 03:11:32,111 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 84.66666666666667) internal successors, (254), 3 states have internal predecessors, (254), 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 03:11:32,111 INFO L276 IsEmpty]: Start isEmpty. Operand 134691 states and 148630 transitions. [2024-11-16 03:11:32,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 387 [2024-11-16 03:11:32,156 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:11:32,157 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:11:32,170 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-16 03:11:32,357 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-11-16 03:11:32,357 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:11:32,358 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:11:32,358 INFO L85 PathProgramCache]: Analyzing trace with hash -1465526062, now seen corresponding path program 1 times [2024-11-16 03:11:32,358 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:11:32,358 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1953960845] [2024-11-16 03:11:32,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:11:32,358 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:11:32,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:11:32,923 INFO L134 CoverageAnalysis]: Checked inductivity of 437 backedges. 144 proven. 7 refuted. 0 times theorem prover too weak. 286 trivial. 0 not checked. [2024-11-16 03:11:32,924 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:11:32,924 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1953960845] [2024-11-16 03:11:32,924 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1953960845] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 03:11:32,924 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1279754902] [2024-11-16 03:11:32,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:11:32,924 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 03:11:32,924 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 03:11:32,926 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 03:11:32,927 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-16 03:11:33,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:11:33,078 INFO L255 TraceCheckSpWp]: Trace formula consists of 680 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-16 03:11:33,083 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 03:11:33,159 INFO L134 CoverageAnalysis]: Checked inductivity of 437 backedges. 151 proven. 0 refuted. 0 times theorem prover too weak. 286 trivial. 0 not checked. [2024-11-16 03:11:33,159 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 03:11:33,159 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1279754902] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:11:33,159 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 03:11:33,160 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2024-11-16 03:11:33,160 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [294422986] [2024-11-16 03:11:33,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:11:33,160 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 03:11:33,160 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:11:33,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 03:11:33,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-16 03:11:33,161 INFO L87 Difference]: Start difference. First operand 134691 states and 148630 transitions. Second operand has 4 states, 4 states have (on average 54.0) internal successors, (216), 3 states have internal predecessors, (216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:11:34,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:11:34,536 INFO L93 Difference]: Finished difference Result 360885 states and 398353 transitions. [2024-11-16 03:11:34,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 03:11:34,536 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 54.0) internal successors, (216), 3 states have internal predecessors, (216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 386 [2024-11-16 03:11:34,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:11:34,780 INFO L225 Difference]: With dead ends: 360885 [2024-11-16 03:11:34,780 INFO L226 Difference]: Without dead ends: 226196 [2024-11-16 03:11:35,133 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 388 GetRequests, 384 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-16 03:11:35,137 INFO L432 NwaCegarLoop]: 68 mSDtfsCounter, 759 mSDsluCounter, 245 mSDsCounter, 0 mSdLazyCounter, 681 mSolverCounterSat, 143 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 759 SdHoareTripleChecker+Valid, 313 SdHoareTripleChecker+Invalid, 824 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 143 IncrementalHoareTripleChecker+Valid, 681 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-16 03:11:35,137 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [759 Valid, 313 Invalid, 824 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [143 Valid, 681 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-16 03:11:35,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226196 states. [2024-11-16 03:11:37,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226196 to 223729. [2024-11-16 03:11:37,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 223729 states, 223728 states have (on average 1.0944673889723235) internal successors, (244863), 223728 states have internal predecessors, (244863), 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 03:11:38,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 223729 states to 223729 states and 244863 transitions. [2024-11-16 03:11:38,244 INFO L78 Accepts]: Start accepts. Automaton has 223729 states and 244863 transitions. Word has length 386 [2024-11-16 03:11:38,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:11:38,245 INFO L471 AbstractCegarLoop]: Abstraction has 223729 states and 244863 transitions. [2024-11-16 03:11:38,245 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 54.0) internal successors, (216), 3 states have internal predecessors, (216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:11:38,245 INFO L276 IsEmpty]: Start isEmpty. Operand 223729 states and 244863 transitions. [2024-11-16 03:11:38,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 394 [2024-11-16 03:11:38,272 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:11:38,276 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:11:38,289 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-16 03:11:38,476 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-11-16 03:11:38,477 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:11:38,477 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:11:38,478 INFO L85 PathProgramCache]: Analyzing trace with hash -573788584, now seen corresponding path program 1 times [2024-11-16 03:11:38,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:11:38,478 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1884898794] [2024-11-16 03:11:38,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:11:38,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:11:38,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:11:38,651 INFO L134 CoverageAnalysis]: Checked inductivity of 365 backedges. 247 proven. 0 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2024-11-16 03:11:38,651 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:11:38,651 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1884898794] [2024-11-16 03:11:38,652 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1884898794] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:11:38,652 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:11:38,652 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:11:38,652 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2059018373] [2024-11-16 03:11:38,652 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:11:38,652 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:11:38,652 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:11:38,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:11:38,653 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:11:38,653 INFO L87 Difference]: Start difference. First operand 223729 states and 244863 transitions. Second operand has 3 states, 3 states have (on average 104.33333333333333) internal successors, (313), 3 states have internal predecessors, (313), 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 03:11:40,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:11:40,385 INFO L93 Difference]: Finished difference Result 446862 states and 489058 transitions. [2024-11-16 03:11:40,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:11:40,386 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 104.33333333333333) internal successors, (313), 3 states have internal predecessors, (313), 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 393 [2024-11-16 03:11:40,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:11:40,657 INFO L225 Difference]: With dead ends: 446862 [2024-11-16 03:11:40,657 INFO L226 Difference]: Without dead ends: 223135 [2024-11-16 03:11:41,240 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 03:11:41,242 INFO L432 NwaCegarLoop]: 102 mSDtfsCounter, 118 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 583 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 119 SdHoareTripleChecker+Invalid, 656 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 583 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-16 03:11:41,243 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [118 Valid, 119 Invalid, 656 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 583 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-16 03:11:41,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 223135 states. [2024-11-16 03:11:43,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 223135 to 220664. [2024-11-16 03:11:43,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 220664 states, 220663 states have (on average 1.0800859228778725) internal successors, (238335), 220663 states have internal predecessors, (238335), 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 03:11:43,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220664 states to 220664 states and 238335 transitions. [2024-11-16 03:11:43,754 INFO L78 Accepts]: Start accepts. Automaton has 220664 states and 238335 transitions. Word has length 393 [2024-11-16 03:11:43,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:11:43,754 INFO L471 AbstractCegarLoop]: Abstraction has 220664 states and 238335 transitions. [2024-11-16 03:11:43,754 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 104.33333333333333) internal successors, (313), 3 states have internal predecessors, (313), 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 03:11:43,754 INFO L276 IsEmpty]: Start isEmpty. Operand 220664 states and 238335 transitions. [2024-11-16 03:11:44,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 409 [2024-11-16 03:11:44,245 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:11:44,245 INFO L215 NwaCegarLoop]: trace histogram [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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:11:44,245 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-16 03:11:44,245 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:11:44,246 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:11:44,246 INFO L85 PathProgramCache]: Analyzing trace with hash 1751960402, now seen corresponding path program 1 times [2024-11-16 03:11:44,246 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:11:44,246 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [711957757] [2024-11-16 03:11:44,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:11:44,246 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:11:44,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:11:44,817 INFO L134 CoverageAnalysis]: Checked inductivity of 397 backedges. 277 proven. 0 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2024-11-16 03:11:44,817 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:11:44,818 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [711957757] [2024-11-16 03:11:44,818 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [711957757] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:11:44,818 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:11:44,818 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:11:44,818 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [194569225] [2024-11-16 03:11:44,818 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:11:44,819 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:11:44,819 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:11:44,819 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:11:44,819 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:11:44,820 INFO L87 Difference]: Start difference. First operand 220664 states and 238335 transitions. Second operand has 3 states, 3 states have (on average 108.66666666666667) internal successors, (326), 3 states have internal predecessors, (326), 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 03:11:46,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:11:46,461 INFO L93 Difference]: Finished difference Result 449352 states and 485848 transitions. [2024-11-16 03:11:46,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:11:46,462 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 108.66666666666667) internal successors, (326), 3 states have internal predecessors, (326), 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 408 [2024-11-16 03:11:46,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:11:46,684 INFO L225 Difference]: With dead ends: 449352 [2024-11-16 03:11:46,684 INFO L226 Difference]: Without dead ends: 212166 [2024-11-16 03:11:46,782 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 03:11:46,782 INFO L432 NwaCegarLoop]: 320 mSDtfsCounter, 90 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 529 mSolverCounterSat, 138 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 334 SdHoareTripleChecker+Invalid, 667 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 138 IncrementalHoareTripleChecker+Valid, 529 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-16 03:11:46,783 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 334 Invalid, 667 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [138 Valid, 529 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-16 03:11:46,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212166 states. [2024-11-16 03:11:48,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212166 to 186780. [2024-11-16 03:11:49,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 186780 states, 186779 states have (on average 1.0714748446024447) internal successors, (200129), 186779 states have internal predecessors, (200129), 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 03:11:49,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186780 states to 186780 states and 200129 transitions. [2024-11-16 03:11:49,636 INFO L78 Accepts]: Start accepts. Automaton has 186780 states and 200129 transitions. Word has length 408 [2024-11-16 03:11:49,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:11:49,636 INFO L471 AbstractCegarLoop]: Abstraction has 186780 states and 200129 transitions. [2024-11-16 03:11:49,637 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 108.66666666666667) internal successors, (326), 3 states have internal predecessors, (326), 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 03:11:49,637 INFO L276 IsEmpty]: Start isEmpty. Operand 186780 states and 200129 transitions. [2024-11-16 03:11:49,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 418 [2024-11-16 03:11:49,664 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:11:49,664 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 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, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:11:49,664 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-16 03:11:49,664 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:11:49,665 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:11:49,665 INFO L85 PathProgramCache]: Analyzing trace with hash 590416602, now seen corresponding path program 1 times [2024-11-16 03:11:49,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:11:49,665 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1008101694] [2024-11-16 03:11:49,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:11:49,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:11:49,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:11:50,345 INFO L134 CoverageAnalysis]: Checked inductivity of 423 backedges. 278 proven. 11 refuted. 0 times theorem prover too weak. 134 trivial. 0 not checked. [2024-11-16 03:11:50,346 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:11:50,346 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1008101694] [2024-11-16 03:11:50,346 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1008101694] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 03:11:50,346 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2123251419] [2024-11-16 03:11:50,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:11:50,346 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 03:11:50,346 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 03:11:50,348 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 03:11:50,349 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-16 03:11:50,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:11:50,826 INFO L255 TraceCheckSpWp]: Trace formula consists of 757 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-16 03:11:50,831 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 03:11:50,853 INFO L134 CoverageAnalysis]: Checked inductivity of 423 backedges. 282 proven. 0 refuted. 0 times theorem prover too weak. 141 trivial. 0 not checked. [2024-11-16 03:11:50,853 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 03:11:50,853 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2123251419] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:11:50,853 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 03:11:50,853 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2024-11-16 03:11:50,854 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2056638861] [2024-11-16 03:11:50,854 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:11:50,855 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:11:50,855 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:11:50,855 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:11:50,855 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-16 03:11:50,855 INFO L87 Difference]: Start difference. First operand 186780 states and 200129 transitions. Second operand has 3 states, 3 states have (on average 109.66666666666667) internal successors, (329), 3 states have internal predecessors, (329), 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 03:11:51,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:11:51,914 INFO L93 Difference]: Finished difference Result 373607 states and 400344 transitions. [2024-11-16 03:11:51,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:11:51,915 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 109.66666666666667) internal successors, (329), 3 states have internal predecessors, (329), 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 417 [2024-11-16 03:11:51,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted.