./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/combinations/pals_lcr.6.ufo.BOUNDED-12.pals+Problem12_label05.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 803cd42f Calling Ultimate with: /root/.sdkman/candidates/java/current/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/combinations/pals_lcr.6.ufo.BOUNDED-12.pals+Problem12_label05.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 2c167e2ddaf8948d5e7bd26982f4dbc66059753c7303cdae96f611484751ca27 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-803cd42-m [2024-11-22 03:54:44,909 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-22 03:54:44,987 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-22 03:54:44,990 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-22 03:54:44,992 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-22 03:54:45,013 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-22 03:54:45,014 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-22 03:54:45,014 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-22 03:54:45,015 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-22 03:54:45,015 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-22 03:54:45,016 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-22 03:54:45,017 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-22 03:54:45,017 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-22 03:54:45,017 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-22 03:54:45,018 INFO L153 SettingsManager]: * Use SBE=true [2024-11-22 03:54:45,018 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-22 03:54:45,019 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-22 03:54:45,019 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-22 03:54:45,019 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-22 03:54:45,019 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-22 03:54:45,019 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-22 03:54:45,022 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-22 03:54:45,022 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-22 03:54:45,022 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-22 03:54:45,022 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-22 03:54:45,022 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-22 03:54:45,023 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-22 03:54:45,023 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-22 03:54:45,023 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-22 03:54:45,023 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-22 03:54:45,024 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-22 03:54:45,024 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-22 03:54:45,024 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 03:54:45,024 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-22 03:54:45,024 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-22 03:54:45,025 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-22 03:54:45,025 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-22 03:54:45,025 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-22 03:54:45,025 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-22 03:54:45,025 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-22 03:54:45,025 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-22 03:54:45,026 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-22 03:54:45,026 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2c167e2ddaf8948d5e7bd26982f4dbc66059753c7303cdae96f611484751ca27 [2024-11-22 03:54:45,231 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-22 03:54:45,250 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-22 03:54:45,252 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-22 03:54:45,253 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-22 03:54:45,253 INFO L274 PluginConnector]: CDTParser initialized [2024-11-22 03:54:45,254 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/pals_lcr.6.ufo.BOUNDED-12.pals+Problem12_label05.c [2024-11-22 03:54:46,506 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-22 03:54:46,902 INFO L384 CDTParser]: Found 1 translation units. [2024-11-22 03:54:46,904 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pals_lcr.6.ufo.BOUNDED-12.pals+Problem12_label05.c [2024-11-22 03:54:46,928 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dbfbe7e7d/c01b885148bf4621825e81948eb45bc6/FLAGc16971c76 [2024-11-22 03:54:46,942 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dbfbe7e7d/c01b885148bf4621825e81948eb45bc6 [2024-11-22 03:54:46,944 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-22 03:54:46,945 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-22 03:54:46,946 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-22 03:54:46,947 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-22 03:54:46,951 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-22 03:54:46,952 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 03:54:46" (1/1) ... [2024-11-22 03:54:46,952 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@74e626ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:54:46, skipping insertion in model container [2024-11-22 03:54:46,952 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 03:54:46" (1/1) ... [2024-11-22 03:54:47,050 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-22 03:54:47,301 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/combinations/pals_lcr.6.ufo.BOUNDED-12.pals+Problem12_label05.c[15482,15495] [2024-11-22 03:54:47,351 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/combinations/pals_lcr.6.ufo.BOUNDED-12.pals+Problem12_label05.c[22418,22431] [2024-11-22 03:54:47,802 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 03:54:47,811 INFO L200 MainTranslator]: Completed pre-run [2024-11-22 03:54:47,840 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/combinations/pals_lcr.6.ufo.BOUNDED-12.pals+Problem12_label05.c[15482,15495] [2024-11-22 03:54:47,852 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/combinations/pals_lcr.6.ufo.BOUNDED-12.pals+Problem12_label05.c[22418,22431] [2024-11-22 03:54:48,126 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 03:54:48,148 INFO L204 MainTranslator]: Completed translation [2024-11-22 03:54:48,149 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:54:48 WrapperNode [2024-11-22 03:54:48,149 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-22 03:54:48,150 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-22 03:54:48,150 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-22 03:54:48,150 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-22 03:54:48,155 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:54:48" (1/1) ... [2024-11-22 03:54:48,195 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:54:48" (1/1) ... [2024-11-22 03:54:48,431 INFO L138 Inliner]: procedures = 37, calls = 23, calls flagged for inlining = 18, calls inlined = 18, statements flattened = 5159 [2024-11-22 03:54:48,431 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-22 03:54:48,432 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-22 03:54:48,432 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-22 03:54:48,432 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-22 03:54:48,441 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:54:48" (1/1) ... [2024-11-22 03:54:48,441 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:54:48" (1/1) ... [2024-11-22 03:54:48,480 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:54:48" (1/1) ... [2024-11-22 03:54:48,641 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]. [2024-11-22 03:54:48,642 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:54:48" (1/1) ... [2024-11-22 03:54:48,642 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:54:48" (1/1) ... [2024-11-22 03:54:48,726 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:54:48" (1/1) ... [2024-11-22 03:54:48,754 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:54:48" (1/1) ... [2024-11-22 03:54:48,776 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:54:48" (1/1) ... [2024-11-22 03:54:48,793 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:54:48" (1/1) ... [2024-11-22 03:54:48,831 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-22 03:54:48,832 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-22 03:54:48,832 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-22 03:54:48,832 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-22 03:54:48,832 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:54:48" (1/1) ... [2024-11-22 03:54:48,836 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 03:54:48,848 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 03:54:48,862 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) [2024-11-22 03:54:48,864 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 [2024-11-22 03:54:48,901 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-22 03:54:48,901 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-22 03:54:48,901 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-22 03:54:48,901 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-22 03:54:49,028 INFO L238 CfgBuilder]: Building ICFG [2024-11-22 03:54:49,030 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-22 03:54:52,272 INFO L? ?]: Removed 749 outVars from TransFormulas that were not future-live. [2024-11-22 03:54:52,273 INFO L287 CfgBuilder]: Performing block encoding [2024-11-22 03:54:52,314 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-22 03:54:52,314 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-22 03:54:52,315 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 03:54:52 BoogieIcfgContainer [2024-11-22 03:54:52,315 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-22 03:54:52,316 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-22 03:54:52,316 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-22 03:54:52,319 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-22 03:54:52,319 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 03:54:46" (1/3) ... [2024-11-22 03:54:52,320 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a0222f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 03:54:52, skipping insertion in model container [2024-11-22 03:54:52,320 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:54:48" (2/3) ... [2024-11-22 03:54:52,320 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a0222f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 03:54:52, skipping insertion in model container [2024-11-22 03:54:52,320 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 03:54:52" (3/3) ... [2024-11-22 03:54:52,321 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.6.ufo.BOUNDED-12.pals+Problem12_label05.c [2024-11-22 03:54:52,334 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-22 03:54:52,335 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-22 03:54:52,401 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 03:54:52,406 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;@912cf52, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 03:54:52,406 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-22 03:54:52,413 INFO L276 IsEmpty]: Start isEmpty. Operand has 914 states, 911 states have (on average 1.9045005488474205) internal successors, (1735), 913 states have internal predecessors, (1735), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:54:52,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-11-22 03:54:52,419 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 03:54:52,420 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] [2024-11-22 03:54:52,420 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 03:54:52,424 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 03:54:52,424 INFO L85 PathProgramCache]: Analyzing trace with hash -1509915646, now seen corresponding path program 1 times [2024-11-22 03:54:52,431 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 03:54:52,431 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [363873312] [2024-11-22 03:54:52,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:54:52,431 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 03:54:52,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:54:52,639 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 03:54:52,640 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 03:54:52,640 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [363873312] [2024-11-22 03:54:52,640 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [363873312] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 03:54:52,641 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 03:54:52,641 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 03:54:52,643 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [715334642] [2024-11-22 03:54:52,643 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 03:54:52,646 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-22 03:54:52,647 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 03:54:52,662 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-22 03:54:52,663 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-22 03:54:52,666 INFO L87 Difference]: Start difference. First operand has 914 states, 911 states have (on average 1.9045005488474205) internal successors, (1735), 913 states have internal predecessors, (1735), 0 states have call successors, (0), 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 2 states, 2 states have (on average 13.0) internal successors, (26), 2 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:54:52,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 03:54:52,729 INFO L93 Difference]: Finished difference Result 1782 states and 3382 transitions. [2024-11-22 03:54:52,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-22 03:54:52,731 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 13.0) internal successors, (26), 2 states have internal predecessors, (26), 0 states have call successors, (0), 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 26 [2024-11-22 03:54:52,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 03:54:52,752 INFO L225 Difference]: With dead ends: 1782 [2024-11-22 03:54:52,752 INFO L226 Difference]: Without dead ends: 848 [2024-11-22 03:54:52,758 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-22 03:54:52,760 INFO L432 NwaCegarLoop]: 1669 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1669 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 03:54:52,760 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1669 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 03:54:52,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 848 states. [2024-11-22 03:54:52,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 848 to 848. [2024-11-22 03:54:52,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 848 states, 846 states have (on average 1.8936170212765957) internal successors, (1602), 847 states have internal predecessors, (1602), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:54:52,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 848 states to 848 states and 1602 transitions. [2024-11-22 03:54:52,827 INFO L78 Accepts]: Start accepts. Automaton has 848 states and 1602 transitions. Word has length 26 [2024-11-22 03:54:52,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 03:54:52,827 INFO L471 AbstractCegarLoop]: Abstraction has 848 states and 1602 transitions. [2024-11-22 03:54:52,827 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 13.0) internal successors, (26), 2 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:54:52,828 INFO L276 IsEmpty]: Start isEmpty. Operand 848 states and 1602 transitions. [2024-11-22 03:54:52,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-11-22 03:54:52,828 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 03:54:52,829 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] [2024-11-22 03:54:52,829 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-22 03:54:52,829 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 03:54:52,829 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 03:54:52,830 INFO L85 PathProgramCache]: Analyzing trace with hash 1967403200, now seen corresponding path program 1 times [2024-11-22 03:54:52,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 03:54:52,830 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1737708413] [2024-11-22 03:54:52,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:54:52,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 03:54:52,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:54:53,013 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 03:54:53,013 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 03:54:53,014 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1737708413] [2024-11-22 03:54:53,014 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1737708413] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 03:54:53,014 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 03:54:53,014 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 03:54:53,015 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1845855969] [2024-11-22 03:54:53,015 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 03:54:53,016 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 03:54:53,017 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 03:54:53,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 03:54:53,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 03:54:53,018 INFO L87 Difference]: Start difference. First operand 848 states and 1602 transitions. Second operand has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:54:53,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 03:54:53,117 INFO L93 Difference]: Finished difference Result 900 states and 1683 transitions. [2024-11-22 03:54:53,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 03:54:53,118 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 0 states have call successors, (0), 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 26 [2024-11-22 03:54:53,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 03:54:53,121 INFO L225 Difference]: With dead ends: 900 [2024-11-22 03:54:53,121 INFO L226 Difference]: Without dead ends: 848 [2024-11-22 03:54:53,121 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 03:54:53,122 INFO L432 NwaCegarLoop]: 1600 mSDtfsCounter, 0 mSDsluCounter, 4755 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 6355 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 03:54:53,123 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 6355 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 03:54:53,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 848 states. [2024-11-22 03:54:53,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 848 to 848. [2024-11-22 03:54:53,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 848 states, 846 states have (on average 1.846335697399527) internal successors, (1562), 847 states have internal predecessors, (1562), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:54:53,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 848 states to 848 states and 1562 transitions. [2024-11-22 03:54:53,178 INFO L78 Accepts]: Start accepts. Automaton has 848 states and 1562 transitions. Word has length 26 [2024-11-22 03:54:53,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 03:54:53,178 INFO L471 AbstractCegarLoop]: Abstraction has 848 states and 1562 transitions. [2024-11-22 03:54:53,178 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:54:53,179 INFO L276 IsEmpty]: Start isEmpty. Operand 848 states and 1562 transitions. [2024-11-22 03:54:53,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-11-22 03:54:53,180 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 03:54:53,180 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] [2024-11-22 03:54:53,181 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-22 03:54:53,181 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 03:54:53,182 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 03:54:53,183 INFO L85 PathProgramCache]: Analyzing trace with hash 348668805, now seen corresponding path program 1 times [2024-11-22 03:54:53,183 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 03:54:53,183 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [273822078] [2024-11-22 03:54:53,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:54:53,183 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 03:54:53,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:54:53,374 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 03:54:53,375 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 03:54:53,375 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [273822078] [2024-11-22 03:54:53,375 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [273822078] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 03:54:53,375 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 03:54:53,376 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 03:54:53,376 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1791393798] [2024-11-22 03:54:53,376 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 03:54:53,377 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 03:54:53,377 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 03:54:53,378 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 03:54:53,378 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 03:54:53,380 INFO L87 Difference]: Start difference. First operand 848 states and 1562 transitions. Second operand has 4 states, 4 states have (on average 15.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:54:58,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 03:54:58,271 INFO L93 Difference]: Finished difference Result 3103 states and 5871 transitions. [2024-11-22 03:54:58,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 03:54:58,271 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 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 60 [2024-11-22 03:54:58,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 03:54:58,278 INFO L225 Difference]: With dead ends: 3103 [2024-11-22 03:54:58,279 INFO L226 Difference]: Without dead ends: 2350 [2024-11-22 03:54:58,280 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-22 03:54:58,282 INFO L432 NwaCegarLoop]: 798 mSDtfsCounter, 2439 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 5354 mSolverCounterSat, 1153 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2439 SdHoareTripleChecker+Valid, 816 SdHoareTripleChecker+Invalid, 6507 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1153 IncrementalHoareTripleChecker+Valid, 5354 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2024-11-22 03:54:58,282 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2439 Valid, 816 Invalid, 6507 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1153 Valid, 5354 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2024-11-22 03:54:58,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2350 states. [2024-11-22 03:54:58,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2350 to 2350. [2024-11-22 03:54:58,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2350 states, 2348 states have (on average 1.565587734241908) internal successors, (3676), 2349 states have internal predecessors, (3676), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:54:58,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2350 states to 2350 states and 3676 transitions. [2024-11-22 03:54:58,317 INFO L78 Accepts]: Start accepts. Automaton has 2350 states and 3676 transitions. Word has length 60 [2024-11-22 03:54:58,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 03:54:58,318 INFO L471 AbstractCegarLoop]: Abstraction has 2350 states and 3676 transitions. [2024-11-22 03:54:58,318 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:54:58,318 INFO L276 IsEmpty]: Start isEmpty. Operand 2350 states and 3676 transitions. [2024-11-22 03:54:58,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-22 03:54:58,321 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 03:54:58,321 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] [2024-11-22 03:54:58,321 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-22 03:54:58,322 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 03:54:58,322 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 03:54:58,322 INFO L85 PathProgramCache]: Analyzing trace with hash 223622668, now seen corresponding path program 1 times [2024-11-22 03:54:58,322 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 03:54:58,322 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1003064735] [2024-11-22 03:54:58,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:54:58,322 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 03:54:58,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:54:58,525 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 03:54:58,526 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 03:54:58,526 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1003064735] [2024-11-22 03:54:58,526 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1003064735] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 03:54:58,526 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 03:54:58,526 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-22 03:54:58,526 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [722722404] [2024-11-22 03:54:58,527 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 03:54:58,527 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-22 03:54:58,527 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 03:54:58,528 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-22 03:54:58,528 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-22 03:54:58,528 INFO L87 Difference]: Start difference. First operand 2350 states and 3676 transitions. Second operand has 8 states, 8 states have (on average 8.125) internal successors, (65), 8 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:54:58,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 03:54:58,764 INFO L93 Difference]: Finished difference Result 2926 states and 4600 transitions. [2024-11-22 03:54:58,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-22 03:54:58,765 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.125) internal successors, (65), 8 states have internal predecessors, (65), 0 states have call successors, (0), 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 65 [2024-11-22 03:54:58,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 03:54:58,773 INFO L225 Difference]: With dead ends: 2926 [2024-11-22 03:54:58,773 INFO L226 Difference]: Without dead ends: 2878 [2024-11-22 03:54:58,776 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=91, Invalid=181, Unknown=0, NotChecked=0, Total=272 [2024-11-22 03:54:58,777 INFO L432 NwaCegarLoop]: 1558 mSDtfsCounter, 9699 mSDsluCounter, 2134 mSDsCounter, 0 mSdLazyCounter, 209 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9699 SdHoareTripleChecker+Valid, 3692 SdHoareTripleChecker+Invalid, 218 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 209 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 03:54:58,779 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9699 Valid, 3692 Invalid, 218 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 209 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 03:54:58,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2878 states. [2024-11-22 03:54:58,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2878 to 2396. [2024-11-22 03:54:58,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2396 states, 2394 states have (on average 1.5664160401002507) internal successors, (3750), 2395 states have internal predecessors, (3750), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:54:58,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2396 states to 2396 states and 3750 transitions. [2024-11-22 03:54:58,818 INFO L78 Accepts]: Start accepts. Automaton has 2396 states and 3750 transitions. Word has length 65 [2024-11-22 03:54:58,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 03:54:58,820 INFO L471 AbstractCegarLoop]: Abstraction has 2396 states and 3750 transitions. [2024-11-22 03:54:58,820 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.125) internal successors, (65), 8 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:54:58,820 INFO L276 IsEmpty]: Start isEmpty. Operand 2396 states and 3750 transitions. [2024-11-22 03:54:58,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-22 03:54:58,822 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 03:54:58,822 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] [2024-11-22 03:54:58,822 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-22 03:54:58,822 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 03:54:58,823 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 03:54:58,823 INFO L85 PathProgramCache]: Analyzing trace with hash -1262675076, now seen corresponding path program 1 times [2024-11-22 03:54:58,823 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 03:54:58,823 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1466055143] [2024-11-22 03:54:58,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:54:58,823 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 03:54:58,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:54:58,906 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 03:54:58,906 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 03:54:58,906 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1466055143] [2024-11-22 03:54:58,907 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1466055143] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 03:54:58,907 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 03:54:58,907 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 03:54:58,907 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2037478633] [2024-11-22 03:54:58,907 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 03:54:58,907 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 03:54:58,907 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 03:54:58,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 03:54:58,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 03:54:58,908 INFO L87 Difference]: Start difference. First operand 2396 states and 3750 transitions. Second operand has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:54:58,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 03:54:58,938 INFO L93 Difference]: Finished difference Result 2573 states and 4033 transitions. [2024-11-22 03:54:58,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 03:54:58,938 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 0 states have call successors, (0), 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 67 [2024-11-22 03:54:58,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 03:54:58,945 INFO L225 Difference]: With dead ends: 2573 [2024-11-22 03:54:58,945 INFO L226 Difference]: Without dead ends: 2479 [2024-11-22 03:54:58,946 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 [2024-11-22 03:54:58,947 INFO L432 NwaCegarLoop]: 1560 mSDtfsCounter, 1490 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1490 SdHoareTripleChecker+Valid, 1632 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 03:54:58,947 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1490 Valid, 1632 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 03:54:58,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2479 states. [2024-11-22 03:54:58,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2479 to 2477. [2024-11-22 03:54:58,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2477 states, 2475 states have (on average 1.566868686868687) internal successors, (3878), 2476 states have internal predecessors, (3878), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:54:58,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2477 states to 2477 states and 3878 transitions. [2024-11-22 03:54:58,981 INFO L78 Accepts]: Start accepts. Automaton has 2477 states and 3878 transitions. Word has length 67 [2024-11-22 03:54:58,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 03:54:58,981 INFO L471 AbstractCegarLoop]: Abstraction has 2477 states and 3878 transitions. [2024-11-22 03:54:58,981 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:54:58,981 INFO L276 IsEmpty]: Start isEmpty. Operand 2477 states and 3878 transitions. [2024-11-22 03:54:58,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-22 03:54:58,982 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 03:54:58,983 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] [2024-11-22 03:54:58,983 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-22 03:54:58,983 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 03:54:58,983 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 03:54:58,983 INFO L85 PathProgramCache]: Analyzing trace with hash -1196181564, now seen corresponding path program 1 times [2024-11-22 03:54:58,983 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 03:54:58,984 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [76948598] [2024-11-22 03:54:58,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:54:58,984 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 03:54:59,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:54:59,241 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 03:54:59,241 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 03:54:59,241 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [76948598] [2024-11-22 03:54:59,241 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [76948598] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 03:54:59,241 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 03:54:59,241 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-22 03:54:59,242 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [121409375] [2024-11-22 03:54:59,242 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 03:54:59,242 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-22 03:54:59,242 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 03:54:59,242 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-22 03:54:59,242 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-11-22 03:54:59,243 INFO L87 Difference]: Start difference. First operand 2477 states and 3878 transitions. Second operand has 8 states, 8 states have (on average 8.375) internal successors, (67), 8 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:54:59,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 03:54:59,442 INFO L93 Difference]: Finished difference Result 2654 states and 4158 transitions. [2024-11-22 03:54:59,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-22 03:54:59,443 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.375) internal successors, (67), 8 states have internal predecessors, (67), 0 states have call successors, (0), 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 67 [2024-11-22 03:54:59,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 03:54:59,450 INFO L225 Difference]: With dead ends: 2654 [2024-11-22 03:54:59,450 INFO L226 Difference]: Without dead ends: 2479 [2024-11-22 03:54:59,451 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=50, Invalid=82, Unknown=0, NotChecked=0, Total=132 [2024-11-22 03:54:59,451 INFO L432 NwaCegarLoop]: 1554 mSDtfsCounter, 3024 mSDsluCounter, 371 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3024 SdHoareTripleChecker+Valid, 1925 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 03:54:59,452 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3024 Valid, 1925 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 03:54:59,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2479 states. [2024-11-22 03:54:59,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2479 to 2477. [2024-11-22 03:54:59,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2477 states, 2475 states have (on average 1.5660606060606062) internal successors, (3876), 2476 states have internal predecessors, (3876), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:54:59,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2477 states to 2477 states and 3876 transitions. [2024-11-22 03:54:59,483 INFO L78 Accepts]: Start accepts. Automaton has 2477 states and 3876 transitions. Word has length 67 [2024-11-22 03:54:59,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 03:54:59,484 INFO L471 AbstractCegarLoop]: Abstraction has 2477 states and 3876 transitions. [2024-11-22 03:54:59,484 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.375) internal successors, (67), 8 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:54:59,484 INFO L276 IsEmpty]: Start isEmpty. Operand 2477 states and 3876 transitions. [2024-11-22 03:54:59,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-22 03:54:59,485 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 03:54:59,485 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] [2024-11-22 03:54:59,485 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-22 03:54:59,485 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 03:54:59,486 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 03:54:59,486 INFO L85 PathProgramCache]: Analyzing trace with hash 1158354181, now seen corresponding path program 1 times [2024-11-22 03:54:59,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 03:54:59,486 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [374138335] [2024-11-22 03:54:59,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:54:59,486 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 03:54:59,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:54:59,648 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 03:54:59,648 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 03:54:59,648 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [374138335] [2024-11-22 03:54:59,648 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [374138335] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 03:54:59,648 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 03:54:59,648 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 03:54:59,649 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [969904716] [2024-11-22 03:54:59,649 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 03:54:59,649 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 03:54:59,649 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 03:54:59,649 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 03:54:59,650 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 03:54:59,650 INFO L87 Difference]: Start difference. First operand 2477 states and 3876 transitions. Second operand has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:54:59,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 03:54:59,683 INFO L93 Difference]: Finished difference Result 2485 states and 3885 transitions. [2024-11-22 03:54:59,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 03:54:59,684 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 0 states have call successors, (0), 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 68 [2024-11-22 03:54:59,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 03:54:59,690 INFO L225 Difference]: With dead ends: 2485 [2024-11-22 03:54:59,690 INFO L226 Difference]: Without dead ends: 2483 [2024-11-22 03:54:59,691 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 03:54:59,691 INFO L432 NwaCegarLoop]: 1559 mSDtfsCounter, 0 mSDsluCounter, 4668 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 6227 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 03:54:59,692 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 6227 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 03:54:59,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2483 states. [2024-11-22 03:54:59,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2483 to 2483. [2024-11-22 03:54:59,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2483 states, 2481 states have (on average 1.5642885933091495) internal successors, (3881), 2482 states have internal predecessors, (3881), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:54:59,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2483 states to 2483 states and 3881 transitions. [2024-11-22 03:54:59,724 INFO L78 Accepts]: Start accepts. Automaton has 2483 states and 3881 transitions. Word has length 68 [2024-11-22 03:54:59,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 03:54:59,724 INFO L471 AbstractCegarLoop]: Abstraction has 2483 states and 3881 transitions. [2024-11-22 03:54:59,724 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:54:59,724 INFO L276 IsEmpty]: Start isEmpty. Operand 2483 states and 3881 transitions. [2024-11-22 03:54:59,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-22 03:54:59,725 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 03:54:59,725 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] [2024-11-22 03:54:59,725 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-22 03:54:59,725 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 03:54:59,726 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 03:54:59,726 INFO L85 PathProgramCache]: Analyzing trace with hash 1759773380, now seen corresponding path program 1 times [2024-11-22 03:54:59,726 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 03:54:59,726 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [228402390] [2024-11-22 03:54:59,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:54:59,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 03:54:59,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:54:59,803 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 03:54:59,804 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 03:54:59,804 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [228402390] [2024-11-22 03:54:59,804 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [228402390] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 03:54:59,804 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 03:54:59,804 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 03:54:59,804 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [863605950] [2024-11-22 03:54:59,804 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 03:54:59,805 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 03:54:59,805 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 03:54:59,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 03:54:59,805 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 03:54:59,805 INFO L87 Difference]: Start difference. First operand 2483 states and 3881 transitions. Second operand has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:54:59,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 03:54:59,831 INFO L93 Difference]: Finished difference Result 2677 states and 4182 transitions. [2024-11-22 03:54:59,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 03:54:59,832 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 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 69 [2024-11-22 03:54:59,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 03:54:59,838 INFO L225 Difference]: With dead ends: 2677 [2024-11-22 03:54:59,838 INFO L226 Difference]: Without dead ends: 2577 [2024-11-22 03:54:59,839 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 [2024-11-22 03:54:59,840 INFO L432 NwaCegarLoop]: 1624 mSDtfsCounter, 1506 mSDsluCounter, 78 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1506 SdHoareTripleChecker+Valid, 1702 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 03:54:59,840 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1506 Valid, 1702 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 03:54:59,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2577 states. [2024-11-22 03:54:59,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2577 to 2575. [2024-11-22 03:54:59,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2575 states, 2573 states have (on average 1.5631558492032647) internal successors, (4022), 2574 states have internal predecessors, (4022), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:54:59,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2575 states to 2575 states and 4022 transitions. [2024-11-22 03:54:59,875 INFO L78 Accepts]: Start accepts. Automaton has 2575 states and 4022 transitions. Word has length 69 [2024-11-22 03:54:59,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 03:54:59,876 INFO L471 AbstractCegarLoop]: Abstraction has 2575 states and 4022 transitions. [2024-11-22 03:54:59,876 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:54:59,876 INFO L276 IsEmpty]: Start isEmpty. Operand 2575 states and 4022 transitions. [2024-11-22 03:54:59,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-22 03:54:59,876 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 03:54:59,877 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] [2024-11-22 03:54:59,877 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-22 03:54:59,877 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 03:54:59,877 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 03:54:59,877 INFO L85 PathProgramCache]: Analyzing trace with hash 1922687940, now seen corresponding path program 1 times [2024-11-22 03:54:59,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 03:54:59,878 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [582472528] [2024-11-22 03:54:59,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:54:59,878 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 03:54:59,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:54:59,919 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 03:54:59,919 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 03:54:59,919 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [582472528] [2024-11-22 03:54:59,919 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [582472528] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 03:54:59,919 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 03:54:59,919 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 03:54:59,920 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [90125541] [2024-11-22 03:54:59,920 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 03:54:59,920 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 03:54:59,920 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 03:54:59,920 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 03:54:59,921 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 03:54:59,921 INFO L87 Difference]: Start difference. First operand 2575 states and 4022 transitions. Second operand has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:54:59,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 03:54:59,949 INFO L93 Difference]: Finished difference Result 3093 states and 4822 transitions. [2024-11-22 03:54:59,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 03:54:59,949 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 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 69 [2024-11-22 03:54:59,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 03:54:59,957 INFO L225 Difference]: With dead ends: 3093 [2024-11-22 03:54:59,957 INFO L226 Difference]: Without dead ends: 2822 [2024-11-22 03:54:59,958 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 [2024-11-22 03:54:59,958 INFO L432 NwaCegarLoop]: 1626 mSDtfsCounter, 1504 mSDsluCounter, 82 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1504 SdHoareTripleChecker+Valid, 1708 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 03:54:59,958 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1504 Valid, 1708 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 03:54:59,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2822 states. [2024-11-22 03:54:59,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2822 to 2820. [2024-11-22 03:54:59,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2820 states, 2818 states have (on average 1.5592618878637332) internal successors, (4394), 2819 states have internal predecessors, (4394), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:54:59,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2820 states to 2820 states and 4394 transitions. [2024-11-22 03:54:59,996 INFO L78 Accepts]: Start accepts. Automaton has 2820 states and 4394 transitions. Word has length 69 [2024-11-22 03:54:59,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 03:54:59,996 INFO L471 AbstractCegarLoop]: Abstraction has 2820 states and 4394 transitions. [2024-11-22 03:54:59,996 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:54:59,997 INFO L276 IsEmpty]: Start isEmpty. Operand 2820 states and 4394 transitions. [2024-11-22 03:54:59,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-22 03:54:59,997 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 03:54:59,997 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] [2024-11-22 03:54:59,997 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-22 03:54:59,997 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 03:54:59,998 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 03:54:59,998 INFO L85 PathProgramCache]: Analyzing trace with hash -870160956, now seen corresponding path program 1 times [2024-11-22 03:54:59,998 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 03:54:59,998 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1737486775] [2024-11-22 03:54:59,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:54:59,998 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 03:55:00,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:55:00,050 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 03:55:00,051 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 03:55:00,051 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1737486775] [2024-11-22 03:55:00,051 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1737486775] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 03:55:00,051 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 03:55:00,051 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 03:55:00,051 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1831095722] [2024-11-22 03:55:00,052 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 03:55:00,052 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 03:55:00,052 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 03:55:00,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 03:55:00,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 03:55:00,053 INFO L87 Difference]: Start difference. First operand 2820 states and 4394 transitions. Second operand has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:55:00,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 03:55:00,084 INFO L93 Difference]: Finished difference Result 3804 states and 5896 transitions. [2024-11-22 03:55:00,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 03:55:00,084 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 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 69 [2024-11-22 03:55:00,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 03:55:00,092 INFO L225 Difference]: With dead ends: 3804 [2024-11-22 03:55:00,092 INFO L226 Difference]: Without dead ends: 3288 [2024-11-22 03:55:00,093 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 [2024-11-22 03:55:00,094 INFO L432 NwaCegarLoop]: 1614 mSDtfsCounter, 1500 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1500 SdHoareTripleChecker+Valid, 1704 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 03:55:00,094 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1500 Valid, 1704 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 03:55:00,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3288 states. [2024-11-22 03:55:00,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3288 to 3286. [2024-11-22 03:55:00,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3286 states, 3284 states have (on average 1.5499390986601704) internal successors, (5090), 3285 states have internal predecessors, (5090), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:55:00,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3286 states to 3286 states and 5090 transitions. [2024-11-22 03:55:00,141 INFO L78 Accepts]: Start accepts. Automaton has 3286 states and 5090 transitions. Word has length 69 [2024-11-22 03:55:00,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 03:55:00,142 INFO L471 AbstractCegarLoop]: Abstraction has 3286 states and 5090 transitions. [2024-11-22 03:55:00,142 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:55:00,142 INFO L276 IsEmpty]: Start isEmpty. Operand 3286 states and 5090 transitions. [2024-11-22 03:55:00,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-22 03:55:00,142 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 03:55:00,143 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] [2024-11-22 03:55:00,143 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-22 03:55:00,143 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 03:55:00,143 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 03:55:00,143 INFO L85 PathProgramCache]: Analyzing trace with hash 1209337540, now seen corresponding path program 1 times [2024-11-22 03:55:00,143 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 03:55:00,144 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [161640258] [2024-11-22 03:55:00,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:55:00,144 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 03:55:00,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:55:00,185 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 03:55:00,186 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 03:55:00,186 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [161640258] [2024-11-22 03:55:00,186 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [161640258] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 03:55:00,186 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 03:55:00,186 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 03:55:00,186 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2104622583] [2024-11-22 03:55:00,186 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 03:55:00,186 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 03:55:00,187 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 03:55:00,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 03:55:00,187 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 03:55:00,187 INFO L87 Difference]: Start difference. First operand 3286 states and 5090 transitions. Second operand has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:55:00,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 03:55:00,230 INFO L93 Difference]: Finished difference Result 5154 states and 7900 transitions. [2024-11-22 03:55:00,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 03:55:00,230 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 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 69 [2024-11-22 03:55:00,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 03:55:00,238 INFO L225 Difference]: With dead ends: 5154 [2024-11-22 03:55:00,238 INFO L226 Difference]: Without dead ends: 4172 [2024-11-22 03:55:00,240 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 [2024-11-22 03:55:00,240 INFO L432 NwaCegarLoop]: 1612 mSDtfsCounter, 1498 mSDsluCounter, 94 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1498 SdHoareTripleChecker+Valid, 1706 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 03:55:00,240 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1498 Valid, 1706 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 03:55:00,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4172 states. [2024-11-22 03:55:00,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4172 to 4170. [2024-11-22 03:55:00,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4170 states, 4168 states have (on average 1.5321497120921306) internal successors, (6386), 4169 states have internal predecessors, (6386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:55:00,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4170 states to 4170 states and 6386 transitions. [2024-11-22 03:55:00,316 INFO L78 Accepts]: Start accepts. Automaton has 4170 states and 6386 transitions. Word has length 69 [2024-11-22 03:55:00,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 03:55:00,317 INFO L471 AbstractCegarLoop]: Abstraction has 4170 states and 6386 transitions. [2024-11-22 03:55:00,317 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:55:00,317 INFO L276 IsEmpty]: Start isEmpty. Operand 4170 states and 6386 transitions. [2024-11-22 03:55:00,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-22 03:55:00,318 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 03:55:00,318 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] [2024-11-22 03:55:00,318 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-22 03:55:00,318 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 03:55:00,319 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 03:55:00,319 INFO L85 PathProgramCache]: Analyzing trace with hash -1304696892, now seen corresponding path program 1 times [2024-11-22 03:55:00,319 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 03:55:00,319 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [264037543] [2024-11-22 03:55:00,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:55:00,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 03:55:00,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:55:00,371 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 03:55:00,372 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 03:55:00,372 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [264037543] [2024-11-22 03:55:00,372 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [264037543] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 03:55:00,372 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 03:55:00,372 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 03:55:00,373 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1504893159] [2024-11-22 03:55:00,373 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 03:55:00,373 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 03:55:00,373 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 03:55:00,373 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 03:55:00,373 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 03:55:00,374 INFO L87 Difference]: Start difference. First operand 4170 states and 6386 transitions. Second operand has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:55:00,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 03:55:00,434 INFO L93 Difference]: Finished difference Result 7710 states and 11620 transitions. [2024-11-22 03:55:00,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 03:55:00,435 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 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 69 [2024-11-22 03:55:00,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 03:55:00,451 INFO L225 Difference]: With dead ends: 7710 [2024-11-22 03:55:00,451 INFO L226 Difference]: Without dead ends: 5844 [2024-11-22 03:55:00,455 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 [2024-11-22 03:55:00,456 INFO L432 NwaCegarLoop]: 1610 mSDtfsCounter, 1496 mSDsluCounter, 98 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1496 SdHoareTripleChecker+Valid, 1708 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 03:55:00,456 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1496 Valid, 1708 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 03:55:00,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5844 states. [2024-11-22 03:55:00,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5844 to 5842. [2024-11-22 03:55:00,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5842 states, 5840 states have (on average 1.5044520547945206) internal successors, (8786), 5841 states have internal predecessors, (8786), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:55:00,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5842 states to 5842 states and 8786 transitions. [2024-11-22 03:55:00,563 INFO L78 Accepts]: Start accepts. Automaton has 5842 states and 8786 transitions. Word has length 69 [2024-11-22 03:55:00,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 03:55:00,563 INFO L471 AbstractCegarLoop]: Abstraction has 5842 states and 8786 transitions. [2024-11-22 03:55:00,563 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:55:00,564 INFO L276 IsEmpty]: Start isEmpty. Operand 5842 states and 8786 transitions. [2024-11-22 03:55:00,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-22 03:55:00,564 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 03:55:00,564 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] [2024-11-22 03:55:00,564 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-22 03:55:00,564 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 03:55:00,565 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 03:55:00,565 INFO L85 PathProgramCache]: Analyzing trace with hash -2108422972, now seen corresponding path program 1 times [2024-11-22 03:55:00,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 03:55:00,565 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1786410722] [2024-11-22 03:55:00,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:55:00,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 03:55:00,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:55:00,613 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 03:55:00,614 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 03:55:00,614 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1786410722] [2024-11-22 03:55:00,614 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1786410722] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 03:55:00,614 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 03:55:00,614 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 03:55:00,614 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1578269374] [2024-11-22 03:55:00,615 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 03:55:00,615 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 03:55:00,615 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 03:55:00,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 03:55:00,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 03:55:00,615 INFO L87 Difference]: Start difference. First operand 5842 states and 8786 transitions. Second operand has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:55:00,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 03:55:00,761 INFO L93 Difference]: Finished difference Result 12534 states and 18484 transitions. [2024-11-22 03:55:00,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 03:55:00,762 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 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 69 [2024-11-22 03:55:00,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 03:55:00,774 INFO L225 Difference]: With dead ends: 12534 [2024-11-22 03:55:00,774 INFO L226 Difference]: Without dead ends: 8996 [2024-11-22 03:55:00,780 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 [2024-11-22 03:55:00,780 INFO L432 NwaCegarLoop]: 1624 mSDtfsCounter, 1502 mSDsluCounter, 86 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1502 SdHoareTripleChecker+Valid, 1710 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 03:55:00,780 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1502 Valid, 1710 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 03:55:00,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8996 states. [2024-11-22 03:55:00,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8996 to 8994. [2024-11-22 03:55:00,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8994 states, 8992 states have (on average 1.468193950177936) internal successors, (13202), 8993 states have internal predecessors, (13202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:55:00,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8994 states to 8994 states and 13202 transitions. [2024-11-22 03:55:00,950 INFO L78 Accepts]: Start accepts. Automaton has 8994 states and 13202 transitions. Word has length 69 [2024-11-22 03:55:00,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 03:55:00,950 INFO L471 AbstractCegarLoop]: Abstraction has 8994 states and 13202 transitions. [2024-11-22 03:55:00,950 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:55:00,951 INFO L276 IsEmpty]: Start isEmpty. Operand 8994 states and 13202 transitions. [2024-11-22 03:55:00,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-22 03:55:00,953 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 03:55:00,953 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-22 03:55:00,953 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-22 03:55:00,953 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 03:55:00,954 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 03:55:00,954 INFO L85 PathProgramCache]: Analyzing trace with hash -2062508441, now seen corresponding path program 1 times [2024-11-22 03:55:00,954 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 03:55:00,954 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [618563450] [2024-11-22 03:55:00,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:55:00,954 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 03:55:00,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:55:01,097 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-22 03:55:01,097 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 03:55:01,097 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [618563450] [2024-11-22 03:55:01,097 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [618563450] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 03:55:01,097 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 03:55:01,097 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-22 03:55:01,098 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [429880380] [2024-11-22 03:55:01,098 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 03:55:01,098 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-22 03:55:01,098 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 03:55:01,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-22 03:55:01,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-22 03:55:01,099 INFO L87 Difference]: Start difference. First operand 8994 states and 13202 transitions. Second operand has 8 states, 8 states have (on average 11.125) internal successors, (89), 8 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:55:01,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 03:55:01,846 INFO L93 Difference]: Finished difference Result 48592 states and 69977 transitions. [2024-11-22 03:55:01,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-22 03:55:01,847 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.125) internal successors, (89), 8 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 90 [2024-11-22 03:55:01,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 03:55:01,912 INFO L225 Difference]: With dead ends: 48592 [2024-11-22 03:55:01,913 INFO L226 Difference]: Without dead ends: 43854 [2024-11-22 03:55:01,934 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2024-11-22 03:55:01,935 INFO L432 NwaCegarLoop]: 1636 mSDtfsCounter, 8080 mSDsluCounter, 2365 mSDsCounter, 0 mSdLazyCounter, 133 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8080 SdHoareTripleChecker+Valid, 4001 SdHoareTripleChecker+Invalid, 138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 133 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 03:55:01,936 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8080 Valid, 4001 Invalid, 138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 133 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 03:55:01,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43854 states. [2024-11-22 03:55:02,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43854 to 14722. [2024-11-22 03:55:02,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14722 states, 14720 states have (on average 1.4490489130434783) internal successors, (21330), 14721 states have internal predecessors, (21330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:55:02,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14722 states to 14722 states and 21330 transitions. [2024-11-22 03:55:02,467 INFO L78 Accepts]: Start accepts. Automaton has 14722 states and 21330 transitions. Word has length 90 [2024-11-22 03:55:02,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 03:55:02,467 INFO L471 AbstractCegarLoop]: Abstraction has 14722 states and 21330 transitions. [2024-11-22 03:55:02,468 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.125) internal successors, (89), 8 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:55:02,468 INFO L276 IsEmpty]: Start isEmpty. Operand 14722 states and 21330 transitions. [2024-11-22 03:55:02,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-22 03:55:02,471 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 03:55:02,471 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-22 03:55:02,471 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-22 03:55:02,471 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 03:55:02,471 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 03:55:02,471 INFO L85 PathProgramCache]: Analyzing trace with hash -1899593881, now seen corresponding path program 1 times [2024-11-22 03:55:02,471 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 03:55:02,471 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [219538746] [2024-11-22 03:55:02,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:55:02,472 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 03:55:02,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:55:02,613 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-22 03:55:02,613 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 03:55:02,614 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [219538746] [2024-11-22 03:55:02,614 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [219538746] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 03:55:02,614 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 03:55:02,614 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-22 03:55:02,614 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1543587295] [2024-11-22 03:55:02,614 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 03:55:02,615 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-22 03:55:02,615 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 03:55:02,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-22 03:55:02,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-22 03:55:02,615 INFO L87 Difference]: Start difference. First operand 14722 states and 21330 transitions. Second operand has 8 states, 8 states have (on average 10.875) internal successors, (87), 8 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:55:03,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 03:55:03,360 INFO L93 Difference]: Finished difference Result 55280 states and 79513 transitions. [2024-11-22 03:55:03,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-22 03:55:03,361 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.875) internal successors, (87), 8 states have internal predecessors, (87), 0 states have call successors, (0), 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 90 [2024-11-22 03:55:03,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 03:55:03,435 INFO L225 Difference]: With dead ends: 55280 [2024-11-22 03:55:03,435 INFO L226 Difference]: Without dead ends: 48590 [2024-11-22 03:55:03,450 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2024-11-22 03:55:03,451 INFO L432 NwaCegarLoop]: 1635 mSDtfsCounter, 8080 mSDsluCounter, 2352 mSDsCounter, 0 mSdLazyCounter, 160 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8080 SdHoareTripleChecker+Valid, 3987 SdHoareTripleChecker+Invalid, 165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 160 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 03:55:03,451 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8080 Valid, 3987 Invalid, 165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 160 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 03:55:03,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48590 states. [2024-11-22 03:55:04,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48590 to 23778. [2024-11-22 03:55:04,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23778 states, 23776 states have (on average 1.4368270524899058) internal successors, (34162), 23777 states have internal predecessors, (34162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:55:04,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23778 states to 23778 states and 34162 transitions. [2024-11-22 03:55:04,152 INFO L78 Accepts]: Start accepts. Automaton has 23778 states and 34162 transitions. Word has length 90 [2024-11-22 03:55:04,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 03:55:04,152 INFO L471 AbstractCegarLoop]: Abstraction has 23778 states and 34162 transitions. [2024-11-22 03:55:04,153 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.875) internal successors, (87), 8 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:55:04,153 INFO L276 IsEmpty]: Start isEmpty. Operand 23778 states and 34162 transitions. [2024-11-22 03:55:04,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-22 03:55:04,156 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 03:55:04,156 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-22 03:55:04,156 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-22 03:55:04,157 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 03:55:04,157 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 03:55:04,157 INFO L85 PathProgramCache]: Analyzing trace with hash -397475481, now seen corresponding path program 1 times [2024-11-22 03:55:04,157 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 03:55:04,157 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [879938381] [2024-11-22 03:55:04,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:55:04,158 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 03:55:04,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:55:04,306 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-22 03:55:04,306 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 03:55:04,306 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [879938381] [2024-11-22 03:55:04,307 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [879938381] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 03:55:04,307 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 03:55:04,307 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-22 03:55:04,307 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1459072995] [2024-11-22 03:55:04,307 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 03:55:04,307 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-22 03:55:04,307 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 03:55:04,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-22 03:55:04,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-22 03:55:04,308 INFO L87 Difference]: Start difference. First operand 23778 states and 34162 transitions. Second operand has 8 states, 8 states have (on average 10.375) internal successors, (83), 8 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:55:05,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 03:55:05,541 INFO L93 Difference]: Finished difference Result 61968 states and 89017 transitions. [2024-11-22 03:55:05,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-22 03:55:05,542 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.375) internal successors, (83), 8 states have internal predecessors, (83), 0 states have call successors, (0), 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 90 [2024-11-22 03:55:05,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 03:55:05,615 INFO L225 Difference]: With dead ends: 61968 [2024-11-22 03:55:05,616 INFO L226 Difference]: Without dead ends: 55278 [2024-11-22 03:55:05,643 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2024-11-22 03:55:05,644 INFO L432 NwaCegarLoop]: 1633 mSDtfsCounter, 8124 mSDsluCounter, 2348 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8124 SdHoareTripleChecker+Valid, 3981 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 03:55:05,644 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8124 Valid, 3981 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 03:55:05,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55278 states. [2024-11-22 03:55:06,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55278 to 30466. [2024-11-22 03:55:06,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30466 states, 30464 states have (on average 1.4333639705882353) internal successors, (43666), 30465 states have internal predecessors, (43666), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:55:06,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30466 states to 30466 states and 43666 transitions. [2024-11-22 03:55:06,490 INFO L78 Accepts]: Start accepts. Automaton has 30466 states and 43666 transitions. Word has length 90 [2024-11-22 03:55:06,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 03:55:06,490 INFO L471 AbstractCegarLoop]: Abstraction has 30466 states and 43666 transitions. [2024-11-22 03:55:06,490 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.375) internal successors, (83), 8 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:55:06,491 INFO L276 IsEmpty]: Start isEmpty. Operand 30466 states and 43666 transitions. [2024-11-22 03:55:06,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-22 03:55:06,494 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 03:55:06,494 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-22 03:55:06,494 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-22 03:55:06,495 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 03:55:06,495 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 03:55:06,495 INFO L85 PathProgramCache]: Analyzing trace with hash 1682023015, now seen corresponding path program 1 times [2024-11-22 03:55:06,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 03:55:06,495 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1250752709] [2024-11-22 03:55:06,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:55:06,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 03:55:06,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:55:06,635 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-22 03:55:06,635 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 03:55:06,635 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1250752709] [2024-11-22 03:55:06,636 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1250752709] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 03:55:06,636 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 03:55:06,636 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-22 03:55:06,636 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2145159480] [2024-11-22 03:55:06,636 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 03:55:06,637 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-22 03:55:06,637 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 03:55:06,637 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-22 03:55:06,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-22 03:55:06,638 INFO L87 Difference]: Start difference. First operand 30466 states and 43666 transitions. Second operand has 8 states, 8 states have (on average 10.125) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:55:07,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 03:55:07,707 INFO L93 Difference]: Finished difference Result 68656 states and 98521 transitions. [2024-11-22 03:55:07,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-22 03:55:07,707 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.125) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 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 90 [2024-11-22 03:55:07,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 03:55:07,780 INFO L225 Difference]: With dead ends: 68656 [2024-11-22 03:55:07,780 INFO L226 Difference]: Without dead ends: 61966 [2024-11-22 03:55:07,804 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2024-11-22 03:55:07,804 INFO L432 NwaCegarLoop]: 1631 mSDtfsCounter, 8179 mSDsluCounter, 2315 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8179 SdHoareTripleChecker+Valid, 3946 SdHoareTripleChecker+Invalid, 140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 03:55:07,804 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8179 Valid, 3946 Invalid, 140 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 03:55:07,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61966 states. [2024-11-22 03:55:08,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61966 to 37154. [2024-11-22 03:55:08,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37154 states, 37152 states have (on average 1.4311477174849268) internal successors, (53170), 37153 states have internal predecessors, (53170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:55:08,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37154 states to 37154 states and 53170 transitions. [2024-11-22 03:55:08,763 INFO L78 Accepts]: Start accepts. Automaton has 37154 states and 53170 transitions. Word has length 90 [2024-11-22 03:55:08,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 03:55:08,764 INFO L471 AbstractCegarLoop]: Abstraction has 37154 states and 53170 transitions. [2024-11-22 03:55:08,765 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.125) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:55:08,765 INFO L276 IsEmpty]: Start isEmpty. Operand 37154 states and 53170 transitions. [2024-11-22 03:55:08,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-22 03:55:08,769 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 03:55:08,769 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-22 03:55:08,769 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-22 03:55:08,769 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 03:55:08,769 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 03:55:08,769 INFO L85 PathProgramCache]: Analyzing trace with hash -832011417, now seen corresponding path program 1 times [2024-11-22 03:55:08,770 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 03:55:08,770 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [343825096] [2024-11-22 03:55:08,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:55:08,770 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 03:55:08,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:55:08,917 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-22 03:55:08,917 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 03:55:08,917 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [343825096] [2024-11-22 03:55:08,917 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [343825096] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 03:55:08,917 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 03:55:08,917 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-22 03:55:08,918 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2036692807] [2024-11-22 03:55:08,918 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 03:55:08,918 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-22 03:55:08,918 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 03:55:08,918 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-22 03:55:08,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-22 03:55:08,918 INFO L87 Difference]: Start difference. First operand 37154 states and 53170 transitions. Second operand has 8 states, 8 states have (on average 9.875) internal successors, (79), 8 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:55:10,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 03:55:10,709 INFO L93 Difference]: Finished difference Result 75344 states and 108025 transitions. [2024-11-22 03:55:10,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-22 03:55:10,709 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.875) internal successors, (79), 8 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 90 [2024-11-22 03:55:10,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 03:55:10,798 INFO L225 Difference]: With dead ends: 75344 [2024-11-22 03:55:10,799 INFO L226 Difference]: Without dead ends: 68654 [2024-11-22 03:55:10,827 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2024-11-22 03:55:10,827 INFO L432 NwaCegarLoop]: 1631 mSDtfsCounter, 8092 mSDsluCounter, 2375 mSDsCounter, 0 mSdLazyCounter, 142 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8092 SdHoareTripleChecker+Valid, 4006 SdHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 142 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 03:55:10,828 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8092 Valid, 4006 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 142 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 03:55:10,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68654 states. [2024-11-22 03:55:12,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68654 to 43842. [2024-11-22 03:55:12,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43842 states, 43840 states have (on average 1.4296076642335767) internal successors, (62674), 43841 states have internal predecessors, (62674), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:55:12,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43842 states to 43842 states and 62674 transitions. [2024-11-22 03:55:12,194 INFO L78 Accepts]: Start accepts. Automaton has 43842 states and 62674 transitions. Word has length 90 [2024-11-22 03:55:12,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 03:55:12,195 INFO L471 AbstractCegarLoop]: Abstraction has 43842 states and 62674 transitions. [2024-11-22 03:55:12,195 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.875) internal successors, (79), 8 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:55:12,195 INFO L276 IsEmpty]: Start isEmpty. Operand 43842 states and 62674 transitions. [2024-11-22 03:55:12,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-22 03:55:12,199 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 03:55:12,199 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-22 03:55:12,199 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-22 03:55:12,199 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 03:55:12,200 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 03:55:12,200 INFO L85 PathProgramCache]: Analyzing trace with hash -1635737497, now seen corresponding path program 1 times [2024-11-22 03:55:12,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 03:55:12,200 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2060656622] [2024-11-22 03:55:12,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:55:12,200 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 03:55:12,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:55:12,346 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-22 03:55:12,346 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 03:55:12,347 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2060656622] [2024-11-22 03:55:12,347 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2060656622] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 03:55:12,347 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 03:55:12,347 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-22 03:55:12,347 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [912343871] [2024-11-22 03:55:12,347 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 03:55:12,347 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-22 03:55:12,347 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 03:55:12,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-22 03:55:12,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-22 03:55:12,348 INFO L87 Difference]: Start difference. First operand 43842 states and 62674 transitions. Second operand has 8 states, 8 states have (on average 10.625) internal successors, (85), 8 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:55:13,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 03:55:13,871 INFO L93 Difference]: Finished difference Result 82032 states and 117529 transitions. [2024-11-22 03:55:13,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-22 03:55:13,875 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.625) internal successors, (85), 8 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 90 [2024-11-22 03:55:13,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 03:55:13,997 INFO L225 Difference]: With dead ends: 82032 [2024-11-22 03:55:13,997 INFO L226 Difference]: Without dead ends: 75342 [2024-11-22 03:55:14,020 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2024-11-22 03:55:14,020 INFO L432 NwaCegarLoop]: 1630 mSDtfsCounter, 8030 mSDsluCounter, 2507 mSDsCounter, 0 mSdLazyCounter, 160 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8030 SdHoareTripleChecker+Valid, 4137 SdHoareTripleChecker+Invalid, 165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 160 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 03:55:14,021 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8030 Valid, 4137 Invalid, 165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 160 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 03:55:14,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75342 states. [2024-11-22 03:55:15,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75342 to 50530. [2024-11-22 03:55:15,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50530 states, 50528 states have (on average 1.428475300823306) internal successors, (72178), 50529 states have internal predecessors, (72178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:55:15,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50530 states to 50530 states and 72178 transitions. [2024-11-22 03:55:15,949 INFO L78 Accepts]: Start accepts. Automaton has 50530 states and 72178 transitions. Word has length 90 [2024-11-22 03:55:15,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 03:55:15,950 INFO L471 AbstractCegarLoop]: Abstraction has 50530 states and 72178 transitions. [2024-11-22 03:55:15,950 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.625) internal successors, (85), 8 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:55:15,950 INFO L276 IsEmpty]: Start isEmpty. Operand 50530 states and 72178 transitions. [2024-11-22 03:55:15,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-11-22 03:55:15,954 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 03:55:15,954 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 03:55:15,954 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-22 03:55:15,954 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 03:55:15,955 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 03:55:15,955 INFO L85 PathProgramCache]: Analyzing trace with hash -1268940109, now seen corresponding path program 1 times [2024-11-22 03:55:15,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 03:55:15,955 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2064147362] [2024-11-22 03:55:15,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:55:15,955 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 03:55:15,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:55:16,042 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 03:55:16,043 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 03:55:16,043 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2064147362] [2024-11-22 03:55:16,043 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2064147362] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 03:55:16,043 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 03:55:16,043 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 03:55:16,043 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2060723835] [2024-11-22 03:55:16,043 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 03:55:16,044 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 03:55:16,044 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 03:55:16,044 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 03:55:16,044 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 03:55:16,044 INFO L87 Difference]: Start difference. First operand 50530 states and 72178 transitions. Second operand has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:55:17,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 03:55:17,147 INFO L93 Difference]: Finished difference Result 98758 states and 140756 transitions. [2024-11-22 03:55:17,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 03:55:17,147 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 0 states have call successors, (0), 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 91 [2024-11-22 03:55:17,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 03:55:17,204 INFO L225 Difference]: With dead ends: 98758 [2024-11-22 03:55:17,204 INFO L226 Difference]: Without dead ends: 50532 [2024-11-22 03:55:17,228 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 03:55:17,229 INFO L432 NwaCegarLoop]: 1604 mSDtfsCounter, 53 mSDsluCounter, 1550 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 3154 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 03:55:17,229 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 3154 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 03:55:17,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50532 states. [2024-11-22 03:55:18,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50532 to 50530. [2024-11-22 03:55:18,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50530 states, 50528 states have (on average 1.414859088030399) internal successors, (71490), 50529 states have internal predecessors, (71490), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:55:18,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50530 states to 50530 states and 71490 transitions. [2024-11-22 03:55:18,783 INFO L78 Accepts]: Start accepts. Automaton has 50530 states and 71490 transitions. Word has length 91 [2024-11-22 03:55:18,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 03:55:18,783 INFO L471 AbstractCegarLoop]: Abstraction has 50530 states and 71490 transitions. [2024-11-22 03:55:18,783 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:55:18,783 INFO L276 IsEmpty]: Start isEmpty. Operand 50530 states and 71490 transitions. [2024-11-22 03:55:18,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-22 03:55:18,786 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 03:55:18,786 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 03:55:18,787 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-22 03:55:18,787 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 03:55:18,788 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 03:55:18,788 INFO L85 PathProgramCache]: Analyzing trace with hash -1497819553, now seen corresponding path program 1 times [2024-11-22 03:55:18,788 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 03:55:18,788 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1120734089] [2024-11-22 03:55:18,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:55:18,788 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 03:55:18,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:55:18,881 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 03:55:18,881 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 03:55:18,881 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1120734089] [2024-11-22 03:55:18,881 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1120734089] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 03:55:18,881 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 03:55:18,882 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 03:55:18,882 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1620769923] [2024-11-22 03:55:18,882 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 03:55:18,882 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 03:55:18,882 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 03:55:18,883 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 03:55:18,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 03:55:18,883 INFO L87 Difference]: Start difference. First operand 50530 states and 71490 transitions. Second operand has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:55:19,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 03:55:19,378 INFO L93 Difference]: Finished difference Result 68315 states and 96714 transitions. [2024-11-22 03:55:19,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 03:55:19,378 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 0 states have call successors, (0), 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 92 [2024-11-22 03:55:19,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 03:55:19,400 INFO L225 Difference]: With dead ends: 68315 [2024-11-22 03:55:19,400 INFO L226 Difference]: Without dead ends: 20089 [2024-11-22 03:55:19,427 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 [2024-11-22 03:55:19,427 INFO L432 NwaCegarLoop]: 1602 mSDtfsCounter, 47 mSDsluCounter, 1549 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 3151 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 03:55:19,427 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 3151 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 03:55:19,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20089 states. [2024-11-22 03:55:19,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20089 to 20081. [2024-11-22 03:55:19,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20081 states, 20079 states have (on average 1.423228248418746) internal successors, (28577), 20080 states have internal predecessors, (28577), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:55:19,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20081 states to 20081 states and 28577 transitions. [2024-11-22 03:55:19,958 INFO L78 Accepts]: Start accepts. Automaton has 20081 states and 28577 transitions. Word has length 92 [2024-11-22 03:55:19,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 03:55:19,959 INFO L471 AbstractCegarLoop]: Abstraction has 20081 states and 28577 transitions. [2024-11-22 03:55:19,959 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:55:19,959 INFO L276 IsEmpty]: Start isEmpty. Operand 20081 states and 28577 transitions. [2024-11-22 03:55:19,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-22 03:55:19,964 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 03:55:19,964 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-22 03:55:19,964 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-22 03:55:19,964 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 03:55:19,965 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 03:55:19,965 INFO L85 PathProgramCache]: Analyzing trace with hash 1217138981, now seen corresponding path program 1 times [2024-11-22 03:55:19,965 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 03:55:19,965 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2090882560] [2024-11-22 03:55:19,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:55:19,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 03:55:19,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:55:20,038 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 03:55:20,039 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 03:55:20,039 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2090882560] [2024-11-22 03:55:20,039 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2090882560] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 03:55:20,039 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 03:55:20,039 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 03:55:20,039 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [211114947] [2024-11-22 03:55:20,039 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 03:55:20,040 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 03:55:20,040 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 03:55:20,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 03:55:20,040 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 03:55:20,040 INFO L87 Difference]: Start difference. First operand 20081 states and 28577 transitions. Second operand has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:55:20,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 03:55:20,239 INFO L93 Difference]: Finished difference Result 28965 states and 41059 transitions. [2024-11-22 03:55:20,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 03:55:20,240 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 0 states have call successors, (0), 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 93 [2024-11-22 03:55:20,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 03:55:20,257 INFO L225 Difference]: With dead ends: 28965 [2024-11-22 03:55:20,257 INFO L226 Difference]: Without dead ends: 11203 [2024-11-22 03:55:20,271 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 [2024-11-22 03:55:20,272 INFO L432 NwaCegarLoop]: 1596 mSDtfsCounter, 49 mSDsluCounter, 1534 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 3130 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 03:55:20,273 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 3130 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 03:55:20,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11203 states. [2024-11-22 03:55:20,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11203 to 11201. [2024-11-22 03:55:20,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11201 states, 11199 states have (on average 1.426645236181802) internal successors, (15977), 11200 states have internal predecessors, (15977), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:55:20,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11201 states to 11201 states and 15977 transitions. [2024-11-22 03:55:20,503 INFO L78 Accepts]: Start accepts. Automaton has 11201 states and 15977 transitions. Word has length 93 [2024-11-22 03:55:20,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 03:55:20,504 INFO L471 AbstractCegarLoop]: Abstraction has 11201 states and 15977 transitions. [2024-11-22 03:55:20,504 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:55:20,504 INFO L276 IsEmpty]: Start isEmpty. Operand 11201 states and 15977 transitions. [2024-11-22 03:55:20,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-11-22 03:55:20,505 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 03:55:20,505 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-22 03:55:20,506 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-22 03:55:20,506 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 03:55:20,506 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 03:55:20,506 INFO L85 PathProgramCache]: Analyzing trace with hash -1583020521, now seen corresponding path program 1 times [2024-11-22 03:55:20,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 03:55:20,506 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1721412330] [2024-11-22 03:55:20,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:55:20,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 03:55:20,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:55:20,659 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 03:55:20,660 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 03:55:20,660 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1721412330] [2024-11-22 03:55:20,660 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1721412330] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 03:55:20,660 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 03:55:20,660 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 03:55:20,660 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1760348449] [2024-11-22 03:55:20,660 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 03:55:20,661 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 03:55:20,661 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 03:55:20,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 03:55:20,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 03:55:20,662 INFO L87 Difference]: Start difference. First operand 11201 states and 15977 transitions. Second operand has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:55:20,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 03:55:20,823 INFO L93 Difference]: Finished difference Result 15645 states and 22159 transitions. [2024-11-22 03:55:20,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 03:55:20,824 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 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 95 [2024-11-22 03:55:20,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 03:55:20,834 INFO L225 Difference]: With dead ends: 15645 [2024-11-22 03:55:20,834 INFO L226 Difference]: Without dead ends: 6763 [2024-11-22 03:55:20,841 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 [2024-11-22 03:55:20,842 INFO L432 NwaCegarLoop]: 1589 mSDtfsCounter, 46 mSDsluCounter, 1526 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 3115 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 03:55:20,842 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 3115 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 03:55:20,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6763 states. [2024-11-22 03:55:21,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6763 to 6761. [2024-11-22 03:55:21,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6761 states, 6759 states have (on average 1.4405977215564432) internal successors, (9737), 6760 states have internal predecessors, (9737), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:55:21,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6761 states to 6761 states and 9737 transitions. [2024-11-22 03:55:21,039 INFO L78 Accepts]: Start accepts. Automaton has 6761 states and 9737 transitions. Word has length 95 [2024-11-22 03:55:21,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 03:55:21,039 INFO L471 AbstractCegarLoop]: Abstraction has 6761 states and 9737 transitions. [2024-11-22 03:55:21,039 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:55:21,040 INFO L276 IsEmpty]: Start isEmpty. Operand 6761 states and 9737 transitions. [2024-11-22 03:55:21,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-11-22 03:55:21,041 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 03:55:21,041 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-22 03:55:21,041 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-22 03:55:21,041 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 03:55:21,042 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 03:55:21,042 INFO L85 PathProgramCache]: Analyzing trace with hash -1669627511, now seen corresponding path program 1 times [2024-11-22 03:55:21,042 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 03:55:21,042 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [402214010] [2024-11-22 03:55:21,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:55:21,042 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 03:55:21,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:55:21,158 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 03:55:21,158 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 03:55:21,158 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [402214010] [2024-11-22 03:55:21,158 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [402214010] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 03:55:21,158 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 03:55:21,159 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 03:55:21,159 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1775476694] [2024-11-22 03:55:21,159 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 03:55:21,159 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 03:55:21,159 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 03:55:21,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 03:55:21,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 03:55:21,160 INFO L87 Difference]: Start difference. First operand 6761 states and 9737 transitions. Second operand has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:55:21,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 03:55:21,251 INFO L93 Difference]: Finished difference Result 8985 states and 12799 transitions. [2024-11-22 03:55:21,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 03:55:21,252 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 97 [2024-11-22 03:55:21,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 03:55:21,257 INFO L225 Difference]: With dead ends: 8985 [2024-11-22 03:55:21,257 INFO L226 Difference]: Without dead ends: 4543 [2024-11-22 03:55:21,259 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 [2024-11-22 03:55:21,260 INFO L432 NwaCegarLoop]: 1582 mSDtfsCounter, 43 mSDsluCounter, 1518 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 3100 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 03:55:21,260 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 3100 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 03:55:21,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4543 states. [2024-11-22 03:55:21,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4543 to 4541. [2024-11-22 03:55:21,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4541 states, 4539 states have (on average 1.4644194756554307) internal successors, (6647), 4540 states have internal predecessors, (6647), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:55:21,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4541 states to 4541 states and 6647 transitions. [2024-11-22 03:55:21,367 INFO L78 Accepts]: Start accepts. Automaton has 4541 states and 6647 transitions. Word has length 97 [2024-11-22 03:55:21,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 03:55:21,368 INFO L471 AbstractCegarLoop]: Abstraction has 4541 states and 6647 transitions. [2024-11-22 03:55:21,368 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:55:21,368 INFO L276 IsEmpty]: Start isEmpty. Operand 4541 states and 6647 transitions. [2024-11-22 03:55:21,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-11-22 03:55:21,370 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 03:55:21,370 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] [2024-11-22 03:55:21,370 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-22 03:55:21,371 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 03:55:21,371 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 03:55:21,372 INFO L85 PathProgramCache]: Analyzing trace with hash 55223163, now seen corresponding path program 1 times [2024-11-22 03:55:21,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 03:55:21,372 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1906450184] [2024-11-22 03:55:21,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:55:21,373 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 03:55:21,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:55:21,477 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 03:55:21,477 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 03:55:21,477 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1906450184] [2024-11-22 03:55:21,478 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1906450184] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 03:55:21,478 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 03:55:21,478 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 03:55:21,478 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [253107885] [2024-11-22 03:55:21,478 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 03:55:21,478 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 03:55:21,478 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 03:55:21,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 03:55:21,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 03:55:21,479 INFO L87 Difference]: Start difference. First operand 4541 states and 6647 transitions. Second operand has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:55:21,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 03:55:21,535 INFO L93 Difference]: Finished difference Result 5655 states and 8164 transitions. [2024-11-22 03:55:21,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 03:55:21,536 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 0 states have call successors, (0), 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 99 [2024-11-22 03:55:21,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 03:55:21,540 INFO L225 Difference]: With dead ends: 5655 [2024-11-22 03:55:21,541 INFO L226 Difference]: Without dead ends: 3433 [2024-11-22 03:55:21,543 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 [2024-11-22 03:55:21,543 INFO L432 NwaCegarLoop]: 1575 mSDtfsCounter, 40 mSDsluCounter, 1510 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 3085 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 03:55:21,544 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 3085 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 03:55:21,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3433 states. [2024-11-22 03:55:21,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3433 to 3431. [2024-11-22 03:55:21,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3431 states, 3429 states have (on average 1.4922717993584136) internal successors, (5117), 3430 states have internal predecessors, (5117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:55:21,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3431 states to 3431 states and 5117 transitions. [2024-11-22 03:55:21,611 INFO L78 Accepts]: Start accepts. Automaton has 3431 states and 5117 transitions. Word has length 99 [2024-11-22 03:55:21,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 03:55:21,612 INFO L471 AbstractCegarLoop]: Abstraction has 3431 states and 5117 transitions. [2024-11-22 03:55:21,612 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:55:21,612 INFO L276 IsEmpty]: Start isEmpty. Operand 3431 states and 5117 transitions. [2024-11-22 03:55:21,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-22 03:55:21,613 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 03:55:21,614 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-22 03:55:21,614 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-22 03:55:21,614 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 03:55:21,614 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 03:55:21,614 INFO L85 PathProgramCache]: Analyzing trace with hash 2142604269, now seen corresponding path program 1 times [2024-11-22 03:55:21,615 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 03:55:21,615 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1308229268] [2024-11-22 03:55:21,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:55:21,615 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 03:55:21,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:55:22,513 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 7 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 03:55:22,513 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 03:55:22,514 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1308229268] [2024-11-22 03:55:22,514 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1308229268] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 03:55:22,514 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1777974766] [2024-11-22 03:55:22,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:55:22,515 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 03:55:22,515 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 03:55:22,517 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) [2024-11-22 03:55:22,518 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-22 03:55:22,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:55:22,661 INFO L255 TraceCheckSpWp]: Trace formula consists of 495 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-22 03:55:22,666 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 03:55:23,186 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 9 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 03:55:23,187 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 03:55:24,196 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 9 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 03:55:24,197 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1777974766] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 03:55:24,197 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 03:55:24,197 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 9, 9] total 27 [2024-11-22 03:55:24,197 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1229716428] [2024-11-22 03:55:24,197 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 03:55:24,198 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2024-11-22 03:55:24,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 03:55:24,199 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2024-11-22 03:55:24,199 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=662, Unknown=0, NotChecked=0, Total=756 [2024-11-22 03:55:24,199 INFO L87 Difference]: Start difference. First operand 3431 states and 5117 transitions. Second operand has 28 states, 28 states have (on average 9.892857142857142) internal successors, (277), 27 states have internal predecessors, (277), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:55:26,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 03:55:26,449 INFO L93 Difference]: Finished difference Result 7911 states and 11257 transitions. [2024-11-22 03:55:26,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2024-11-22 03:55:26,450 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 9.892857142857142) internal successors, (277), 27 states have internal predecessors, (277), 0 states have call successors, (0), 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 101 [2024-11-22 03:55:26,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 03:55:26,457 INFO L225 Difference]: With dead ends: 7911 [2024-11-22 03:55:26,457 INFO L226 Difference]: Without dead ends: 6799 [2024-11-22 03:55:26,460 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 250 GetRequests, 186 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 944 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=847, Invalid=3443, Unknown=0, NotChecked=0, Total=4290 [2024-11-22 03:55:26,460 INFO L432 NwaCegarLoop]: 1511 mSDtfsCounter, 25290 mSDsluCounter, 6644 mSDsCounter, 0 mSdLazyCounter, 981 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25290 SdHoareTripleChecker+Valid, 8155 SdHoareTripleChecker+Invalid, 1026 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 981 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-22 03:55:26,460 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [25290 Valid, 8155 Invalid, 1026 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 981 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-22 03:55:26,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6799 states. [2024-11-22 03:55:26,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6799 to 6701. [2024-11-22 03:55:26,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6701 states, 6699 states have (on average 1.4221525600835945) internal successors, (9527), 6700 states have internal predecessors, (9527), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:55:26,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6701 states to 6701 states and 9527 transitions. [2024-11-22 03:55:26,565 INFO L78 Accepts]: Start accepts. Automaton has 6701 states and 9527 transitions. Word has length 101 [2024-11-22 03:55:26,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 03:55:26,566 INFO L471 AbstractCegarLoop]: Abstraction has 6701 states and 9527 transitions. [2024-11-22 03:55:26,566 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 9.892857142857142) internal successors, (277), 27 states have internal predecessors, (277), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:55:26,566 INFO L276 IsEmpty]: Start isEmpty. Operand 6701 states and 9527 transitions. [2024-11-22 03:55:26,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-11-22 03:55:26,567 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 03:55:26,567 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-22 03:55:26,574 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-22 03:55:26,767 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2024-11-22 03:55:26,768 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 03:55:26,768 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 03:55:26,768 INFO L85 PathProgramCache]: Analyzing trace with hash -378706729, now seen corresponding path program 1 times [2024-11-22 03:55:26,768 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 03:55:26,768 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [183241541] [2024-11-22 03:55:26,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:55:26,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 03:55:26,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:55:27,408 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 11 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 03:55:27,408 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 03:55:27,409 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [183241541] [2024-11-22 03:55:27,409 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [183241541] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 03:55:27,409 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1366640279] [2024-11-22 03:55:27,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:55:27,409 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 03:55:27,409 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 03:55:27,411 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) [2024-11-22 03:55:27,412 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-22 03:55:27,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:55:27,520 INFO L255 TraceCheckSpWp]: Trace formula consists of 500 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-22 03:55:27,522 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 03:55:27,845 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 13 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 03:55:27,845 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 03:55:28,558 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 13 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 03:55:28,558 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1366640279] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 03:55:28,559 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 03:55:28,559 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 9, 9] total 27 [2024-11-22 03:55:28,559 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [193584292] [2024-11-22 03:55:28,559 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 03:55:28,559 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2024-11-22 03:55:28,559 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 03:55:28,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2024-11-22 03:55:28,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=668, Unknown=0, NotChecked=0, Total=756 [2024-11-22 03:55:28,560 INFO L87 Difference]: Start difference. First operand 6701 states and 9527 transitions. Second operand has 28 states, 28 states have (on average 9.071428571428571) internal successors, (254), 27 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) [2024-11-22 03:55:30,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 03:55:30,575 INFO L93 Difference]: Finished difference Result 20781 states and 28492 transitions. [2024-11-22 03:55:30,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2024-11-22 03:55:30,575 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 9.071428571428571) internal successors, (254), 27 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 102 [2024-11-22 03:55:30,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 03:55:30,593 INFO L225 Difference]: With dead ends: 20781 [2024-11-22 03:55:30,593 INFO L226 Difference]: Without dead ends: 16399 [2024-11-22 03:55:30,601 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 249 GetRequests, 188 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 805 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=813, Invalid=3093, Unknown=0, NotChecked=0, Total=3906 [2024-11-22 03:55:30,602 INFO L432 NwaCegarLoop]: 1532 mSDtfsCounter, 20613 mSDsluCounter, 6808 mSDsCounter, 0 mSdLazyCounter, 1017 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20613 SdHoareTripleChecker+Valid, 8340 SdHoareTripleChecker+Invalid, 1057 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 1017 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-22 03:55:30,602 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [20613 Valid, 8340 Invalid, 1057 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 1017 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-22 03:55:30,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16399 states. [2024-11-22 03:55:31,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16399 to 16166. [2024-11-22 03:55:31,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16166 states, 16164 states have (on average 1.363338282603316) internal successors, (22037), 16165 states have internal predecessors, (22037), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:55:31,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16166 states to 16166 states and 22037 transitions. [2024-11-22 03:55:31,038 INFO L78 Accepts]: Start accepts. Automaton has 16166 states and 22037 transitions. Word has length 102 [2024-11-22 03:55:31,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 03:55:31,038 INFO L471 AbstractCegarLoop]: Abstraction has 16166 states and 22037 transitions. [2024-11-22 03:55:31,038 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 9.071428571428571) internal successors, (254), 27 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) [2024-11-22 03:55:31,038 INFO L276 IsEmpty]: Start isEmpty. Operand 16166 states and 22037 transitions. [2024-11-22 03:55:31,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-22 03:55:31,040 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 03:55:31,040 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-22 03:55:31,046 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-22 03:55:31,240 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,SelfDestructingSolverStorable26 [2024-11-22 03:55:31,241 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 03:55:31,241 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 03:55:31,241 INFO L85 PathProgramCache]: Analyzing trace with hash -1650406049, now seen corresponding path program 1 times [2024-11-22 03:55:31,241 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 03:55:31,242 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1613345948] [2024-11-22 03:55:31,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:55:31,242 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 03:55:31,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:55:31,551 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 5 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 03:55:31,552 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 03:55:31,552 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1613345948] [2024-11-22 03:55:31,552 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1613345948] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 03:55:31,552 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1000304173] [2024-11-22 03:55:31,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:55:31,552 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 03:55:31,552 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 03:55:31,554 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) [2024-11-22 03:55:31,555 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-22 03:55:31,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:55:31,680 INFO L255 TraceCheckSpWp]: Trace formula consists of 502 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-22 03:55:31,683 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 03:55:32,028 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 9 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 03:55:32,028 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 03:55:32,637 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 9 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 03:55:32,638 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1000304173] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 03:55:32,638 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 03:55:32,638 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 25 [2024-11-22 03:55:32,638 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1328363496] [2024-11-22 03:55:32,638 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 03:55:32,639 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-11-22 03:55:32,639 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 03:55:32,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-11-22 03:55:32,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=557, Unknown=0, NotChecked=0, Total=650 [2024-11-22 03:55:32,639 INFO L87 Difference]: Start difference. First operand 16166 states and 22037 transitions. Second operand has 26 states, 26 states have (on average 10.961538461538462) internal successors, (285), 25 states have internal predecessors, (285), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:55:34,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 03:55:34,634 INFO L93 Difference]: Finished difference Result 68260 states and 91419 transitions. [2024-11-22 03:55:34,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2024-11-22 03:55:34,635 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 10.961538461538462) internal successors, (285), 25 states have internal predecessors, (285), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 103 [2024-11-22 03:55:34,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 03:55:34,694 INFO L225 Difference]: With dead ends: 68260 [2024-11-22 03:55:34,695 INFO L226 Difference]: Without dead ends: 54413 [2024-11-22 03:55:34,718 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 244 GetRequests, 189 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 621 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=712, Invalid=2480, Unknown=0, NotChecked=0, Total=3192 [2024-11-22 03:55:34,718 INFO L432 NwaCegarLoop]: 1557 mSDtfsCounter, 26718 mSDsluCounter, 5312 mSDsCounter, 0 mSdLazyCounter, 1094 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26718 SdHoareTripleChecker+Valid, 6869 SdHoareTripleChecker+Invalid, 1124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 1094 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-22 03:55:34,718 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [26718 Valid, 6869 Invalid, 1124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 1094 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-22 03:55:34,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54413 states. [2024-11-22 03:55:35,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54413 to 46781. [2024-11-22 03:55:35,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46781 states, 46779 states have (on average 1.3192244383163385) internal successors, (61712), 46780 states have internal predecessors, (61712), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:55:36,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46781 states to 46781 states and 61712 transitions. [2024-11-22 03:55:36,020 INFO L78 Accepts]: Start accepts. Automaton has 46781 states and 61712 transitions. Word has length 103 [2024-11-22 03:55:36,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 03:55:36,020 INFO L471 AbstractCegarLoop]: Abstraction has 46781 states and 61712 transitions. [2024-11-22 03:55:36,020 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 10.961538461538462) internal successors, (285), 25 states have internal predecessors, (285), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:55:36,020 INFO L276 IsEmpty]: Start isEmpty. Operand 46781 states and 61712 transitions. [2024-11-22 03:55:36,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-11-22 03:55:36,023 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 03:55:36,023 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-22 03:55:36,030 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-22 03:55:36,224 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 03:55:36,225 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 03:55:36,225 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 03:55:36,225 INFO L85 PathProgramCache]: Analyzing trace with hash -1933726693, now seen corresponding path program 1 times [2024-11-22 03:55:36,225 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 03:55:36,225 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1382692905] [2024-11-22 03:55:36,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:55:36,225 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 03:55:36,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:55:36,537 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 15 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 03:55:36,538 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 03:55:36,538 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1382692905] [2024-11-22 03:55:36,538 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1382692905] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 03:55:36,538 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [297849096] [2024-11-22 03:55:36,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:55:36,538 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 03:55:36,539 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 03:55:36,542 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) [2024-11-22 03:55:36,650 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-22 03:55:36,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:55:36,772 INFO L255 TraceCheckSpWp]: Trace formula consists of 506 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-22 03:55:36,775 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 03:55:37,424 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 5 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 03:55:37,424 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 03:55:38,201 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 5 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 03:55:38,202 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [297849096] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 03:55:38,202 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 03:55:38,202 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 12, 12] total 30 [2024-11-22 03:55:38,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [713230339] [2024-11-22 03:55:38,202 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 03:55:38,202 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2024-11-22 03:55:38,202 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 03:55:38,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2024-11-22 03:55:38,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=776, Unknown=0, NotChecked=0, Total=870 [2024-11-22 03:55:38,204 INFO L87 Difference]: Start difference. First operand 46781 states and 61712 transitions. Second operand has 30 states, 30 states have (on average 9.966666666666667) internal successors, (299), 30 states have internal predecessors, (299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:55:40,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 03:55:40,970 INFO L93 Difference]: Finished difference Result 110713 states and 145738 transitions. [2024-11-22 03:55:40,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2024-11-22 03:55:40,970 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 9.966666666666667) internal successors, (299), 30 states have internal predecessors, (299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 105 [2024-11-22 03:55:40,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 03:55:41,043 INFO L225 Difference]: With dead ends: 110713 [2024-11-22 03:55:41,043 INFO L226 Difference]: Without dead ends: 66251 [2024-11-22 03:55:41,057 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 245 GetRequests, 190 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 574 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=643, Invalid=2549, Unknown=0, NotChecked=0, Total=3192 [2024-11-22 03:55:41,061 INFO L432 NwaCegarLoop]: 1520 mSDtfsCounter, 15455 mSDsluCounter, 12492 mSDsCounter, 0 mSdLazyCounter, 885 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15455 SdHoareTripleChecker+Valid, 14012 SdHoareTripleChecker+Invalid, 918 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 885 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-22 03:55:41,061 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [15455 Valid, 14012 Invalid, 918 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 885 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-22 03:55:41,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66251 states. [2024-11-22 03:55:42,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66251 to 66241. [2024-11-22 03:55:42,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66241 states, 66239 states have (on average 1.310723289904739) internal successors, (86821), 66240 states have internal predecessors, (86821), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:55:42,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66241 states to 66241 states and 86821 transitions. [2024-11-22 03:55:42,880 INFO L78 Accepts]: Start accepts. Automaton has 66241 states and 86821 transitions. Word has length 105 [2024-11-22 03:55:42,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 03:55:42,881 INFO L471 AbstractCegarLoop]: Abstraction has 66241 states and 86821 transitions. [2024-11-22 03:55:42,881 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 9.966666666666667) internal successors, (299), 30 states have internal predecessors, (299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:55:42,881 INFO L276 IsEmpty]: Start isEmpty. Operand 66241 states and 86821 transitions. [2024-11-22 03:55:42,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-11-22 03:55:42,883 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 03:55:42,884 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-22 03:55:42,891 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-22 03:55:43,084 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2024-11-22 03:55:43,084 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 03:55:43,085 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 03:55:43,085 INFO L85 PathProgramCache]: Analyzing trace with hash -1951488521, now seen corresponding path program 1 times [2024-11-22 03:55:43,085 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 03:55:43,085 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2039857648] [2024-11-22 03:55:43,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:55:43,085 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 03:55:43,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:55:43,418 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 11 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 03:55:43,418 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 03:55:43,419 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2039857648] [2024-11-22 03:55:43,419 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2039857648] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 03:55:43,419 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [879987102] [2024-11-22 03:55:43,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:55:43,419 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 03:55:43,419 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 03:55:43,422 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) [2024-11-22 03:55:43,423 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-22 03:55:43,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:55:43,548 INFO L255 TraceCheckSpWp]: Trace formula consists of 506 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-22 03:55:43,550 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 03:55:43,882 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 11 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 03:55:43,882 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 03:55:44,547 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 11 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 03:55:44,549 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [879987102] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 03:55:44,549 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 03:55:44,549 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 20 [2024-11-22 03:55:44,549 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1391648250] [2024-11-22 03:55:44,549 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 03:55:44,549 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-22 03:55:44,549 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 03:55:44,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-22 03:55:44,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=92, Invalid=328, Unknown=0, NotChecked=0, Total=420 [2024-11-22 03:55:44,550 INFO L87 Difference]: Start difference. First operand 66241 states and 86821 transitions. Second operand has 21 states, 21 states have (on average 11.0) internal successors, (231), 20 states have internal predecessors, (231), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:55:47,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 03:55:47,360 INFO L93 Difference]: Finished difference Result 178263 states and 233298 transitions. [2024-11-22 03:55:47,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-22 03:55:47,360 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 11.0) internal successors, (231), 20 states have internal predecessors, (231), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 105 [2024-11-22 03:55:47,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 03:55:47,509 INFO L225 Difference]: With dead ends: 178263 [2024-11-22 03:55:47,509 INFO L226 Difference]: Without dead ends: 114341 [2024-11-22 03:55:47,550 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 225 GetRequests, 198 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 140 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=215, Invalid=597, Unknown=0, NotChecked=0, Total=812 [2024-11-22 03:55:47,551 INFO L432 NwaCegarLoop]: 1549 mSDtfsCounter, 12325 mSDsluCounter, 3439 mSDsCounter, 0 mSdLazyCounter, 507 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12325 SdHoareTripleChecker+Valid, 4988 SdHoareTripleChecker+Invalid, 520 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 507 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-22 03:55:47,551 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [12325 Valid, 4988 Invalid, 520 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 507 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-22 03:55:47,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114341 states. [2024-11-22 03:55:50,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114341 to 111025. [2024-11-22 03:55:50,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111025 states, 111023 states have (on average 1.295560379380849) internal successors, (143837), 111024 states have internal predecessors, (143837), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:55:51,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111025 states to 111025 states and 143837 transitions. [2024-11-22 03:55:51,095 INFO L78 Accepts]: Start accepts. Automaton has 111025 states and 143837 transitions. Word has length 105 [2024-11-22 03:55:51,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 03:55:51,095 INFO L471 AbstractCegarLoop]: Abstraction has 111025 states and 143837 transitions. [2024-11-22 03:55:51,095 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 11.0) internal successors, (231), 20 states have internal predecessors, (231), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:55:51,095 INFO L276 IsEmpty]: Start isEmpty. Operand 111025 states and 143837 transitions. [2024-11-22 03:55:51,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-11-22 03:55:51,107 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 03:55:51,112 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-22 03:55:51,125 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-22 03:55:51,313 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 03:55:51,313 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 03:55:51,313 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 03:55:51,313 INFO L85 PathProgramCache]: Analyzing trace with hash -1134936465, now seen corresponding path program 1 times [2024-11-22 03:55:51,314 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 03:55:51,314 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [67667353] [2024-11-22 03:55:51,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:55:51,314 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 03:55:51,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:55:52,256 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 7 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 03:55:52,256 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 03:55:52,256 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [67667353] [2024-11-22 03:55:52,256 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [67667353] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 03:55:52,256 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [261978690] [2024-11-22 03:55:52,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:55:52,257 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 03:55:52,257 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 03:55:52,261 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) [2024-11-22 03:55:52,263 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-22 03:55:52,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:55:52,421 INFO L255 TraceCheckSpWp]: Trace formula consists of 508 conjuncts, 80 conjuncts are in the unsatisfiable core [2024-11-22 03:55:52,425 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 03:56:02,951 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 7 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 03:56:02,951 INFO L311 TraceCheckSpWp]: Computing backward predicates...