./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount250_file-18.i --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/hardness-nfm22/hardness_operatoramount_amount250_file-18.i -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 307330b5784102094d6e331f59192507d431682cdaaa70e5c84c83c1216c8289 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-803cd42-m [2024-11-22 11:38:04,883 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-22 11:38:04,933 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-22 11:38:04,938 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-22 11:38:04,939 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-22 11:38:04,958 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-22 11:38:04,959 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-22 11:38:04,959 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-22 11:38:04,959 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-22 11:38:04,960 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-22 11:38:04,960 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-22 11:38:04,960 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-22 11:38:04,961 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-22 11:38:04,962 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-22 11:38:04,963 INFO L153 SettingsManager]: * Use SBE=true [2024-11-22 11:38:04,963 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-22 11:38:04,963 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-22 11:38:04,963 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-22 11:38:04,964 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-22 11:38:04,964 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-22 11:38:04,964 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-22 11:38:04,968 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-22 11:38:04,968 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-22 11:38:04,968 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-22 11:38:04,969 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-22 11:38:04,969 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-22 11:38:04,969 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-22 11:38:04,969 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-22 11:38:04,970 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-22 11:38:04,970 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-22 11:38:04,970 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-22 11:38:04,971 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-22 11:38:04,971 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 11:38:04,971 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-22 11:38:04,971 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-22 11:38:04,971 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-22 11:38:04,972 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-22 11:38:04,972 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-22 11:38:04,972 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-22 11:38:04,972 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-22 11:38:04,972 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-22 11:38:04,973 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-22 11:38:04,973 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 307330b5784102094d6e331f59192507d431682cdaaa70e5c84c83c1216c8289 [2024-11-22 11:38:05,175 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-22 11:38:05,193 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-22 11:38:05,196 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-22 11:38:05,197 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-22 11:38:05,197 INFO L274 PluginConnector]: CDTParser initialized [2024-11-22 11:38:05,198 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount250_file-18.i [2024-11-22 11:38:06,473 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-22 11:38:06,654 INFO L384 CDTParser]: Found 1 translation units. [2024-11-22 11:38:06,654 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount250_file-18.i [2024-11-22 11:38:06,666 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7350164cb/7f6f8fb5b3eb4bf5858a442314a9a512/FLAGa25d58edf [2024-11-22 11:38:07,028 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7350164cb/7f6f8fb5b3eb4bf5858a442314a9a512 [2024-11-22 11:38:07,030 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-22 11:38:07,031 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-22 11:38:07,032 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-22 11:38:07,032 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-22 11:38:07,038 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-22 11:38:07,038 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 11:38:07" (1/1) ... [2024-11-22 11:38:07,039 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56453350 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:38:07, skipping insertion in model container [2024-11-22 11:38:07,039 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 11:38:07" (1/1) ... [2024-11-22 11:38:07,075 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-22 11:38:07,226 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/hardness-nfm22/hardness_operatoramount_amount250_file-18.i[916,929] [2024-11-22 11:38:07,335 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 11:38:07,345 INFO L200 MainTranslator]: Completed pre-run [2024-11-22 11:38:07,354 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/hardness-nfm22/hardness_operatoramount_amount250_file-18.i[916,929] [2024-11-22 11:38:07,428 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 11:38:07,463 INFO L204 MainTranslator]: Completed translation [2024-11-22 11:38:07,463 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:38:07 WrapperNode [2024-11-22 11:38:07,463 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-22 11:38:07,464 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-22 11:38:07,464 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-22 11:38:07,464 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-22 11:38:07,469 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:38:07" (1/1) ... [2024-11-22 11:38:07,481 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:38:07" (1/1) ... [2024-11-22 11:38:07,534 INFO L138 Inliner]: procedures = 26, calls = 64, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 491 [2024-11-22 11:38:07,534 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-22 11:38:07,535 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-22 11:38:07,535 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-22 11:38:07,535 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-22 11:38:07,543 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:38:07" (1/1) ... [2024-11-22 11:38:07,544 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:38:07" (1/1) ... [2024-11-22 11:38:07,558 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:38:07" (1/1) ... [2024-11-22 11:38:07,599 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 11:38:07,600 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:38:07" (1/1) ... [2024-11-22 11:38:07,600 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:38:07" (1/1) ... [2024-11-22 11:38:07,618 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:38:07" (1/1) ... [2024-11-22 11:38:07,622 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:38:07" (1/1) ... [2024-11-22 11:38:07,628 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:38:07" (1/1) ... [2024-11-22 11:38:07,635 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:38:07" (1/1) ... [2024-11-22 11:38:07,646 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-22 11:38:07,647 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-22 11:38:07,647 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-22 11:38:07,647 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-22 11:38:07,647 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:38:07" (1/1) ... [2024-11-22 11:38:07,652 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 11:38:07,660 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 11:38:07,675 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 11:38:07,678 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 11:38:07,718 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-22 11:38:07,719 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-22 11:38:07,719 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-22 11:38:07,720 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-22 11:38:07,720 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-22 11:38:07,720 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-22 11:38:07,816 INFO L238 CfgBuilder]: Building ICFG [2024-11-22 11:38:07,817 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-22 11:38:08,488 INFO L? ?]: Removed 61 outVars from TransFormulas that were not future-live. [2024-11-22 11:38:08,488 INFO L287 CfgBuilder]: Performing block encoding [2024-11-22 11:38:08,503 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-22 11:38:08,504 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-22 11:38:08,504 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 11:38:08 BoogieIcfgContainer [2024-11-22 11:38:08,504 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-22 11:38:08,506 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-22 11:38:08,506 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-22 11:38:08,508 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-22 11:38:08,508 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 11:38:07" (1/3) ... [2024-11-22 11:38:08,509 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10c72187 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 11:38:08, skipping insertion in model container [2024-11-22 11:38:08,510 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:38:07" (2/3) ... [2024-11-22 11:38:08,510 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10c72187 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 11:38:08, skipping insertion in model container [2024-11-22 11:38:08,510 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 11:38:08" (3/3) ... [2024-11-22 11:38:08,511 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount250_file-18.i [2024-11-22 11:38:08,523 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-22 11:38:08,524 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-22 11:38:08,584 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 11:38:08,591 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;@203c4a46, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 11:38:08,592 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-22 11:38:08,597 INFO L276 IsEmpty]: Start isEmpty. Operand has 203 states, 149 states have (on average 1.5369127516778522) internal successors, (229), 150 states have internal predecessors, (229), 51 states have call successors, (51), 1 states have call predecessors, (51), 1 states have return successors, (51), 51 states have call predecessors, (51), 51 states have call successors, (51) [2024-11-22 11:38:08,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 343 [2024-11-22 11:38:08,624 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 11:38:08,625 INFO L215 NwaCegarLoop]: trace histogram [51, 51, 51, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:38:08,626 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 11:38:08,630 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 11:38:08,630 INFO L85 PathProgramCache]: Analyzing trace with hash 1475313320, now seen corresponding path program 1 times [2024-11-22 11:38:08,636 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 11:38:08,636 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1745727907] [2024-11-22 11:38:08,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 11:38:08,637 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 11:38:08,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 11:38:09,067 INFO L134 CoverageAnalysis]: Checked inductivity of 5100 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 5000 trivial. 0 not checked. [2024-11-22 11:38:09,067 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 11:38:09,068 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1745727907] [2024-11-22 11:38:09,068 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1745727907] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 11:38:09,069 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [267875705] [2024-11-22 11:38:09,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 11:38:09,069 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 11:38:09,069 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 11:38:09,071 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 11:38:09,072 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 11:38:09,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 11:38:09,287 INFO L255 TraceCheckSpWp]: Trace formula consists of 824 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-22 11:38:09,304 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 11:38:09,354 INFO L134 CoverageAnalysis]: Checked inductivity of 5100 backedges. 100 proven. 0 refuted. 0 times theorem prover too weak. 5000 trivial. 0 not checked. [2024-11-22 11:38:09,355 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 11:38:09,355 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [267875705] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 11:38:09,355 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 11:38:09,355 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-22 11:38:09,361 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [311897478] [2024-11-22 11:38:09,361 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 11:38:09,366 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-22 11:38:09,367 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 11:38:09,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-22 11:38:09,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-22 11:38:09,392 INFO L87 Difference]: Start difference. First operand has 203 states, 149 states have (on average 1.5369127516778522) internal successors, (229), 150 states have internal predecessors, (229), 51 states have call successors, (51), 1 states have call predecessors, (51), 1 states have return successors, (51), 51 states have call predecessors, (51), 51 states have call successors, (51) Second operand has 2 states, 2 states have (on average 46.0) internal successors, (92), 2 states have internal predecessors, (92), 2 states have call successors, (51), 2 states have call predecessors, (51), 1 states have return successors, (51), 1 states have call predecessors, (51), 2 states have call successors, (51) [2024-11-22 11:38:09,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 11:38:09,429 INFO L93 Difference]: Finished difference Result 399 states and 707 transitions. [2024-11-22 11:38:09,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-22 11:38:09,431 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 46.0) internal successors, (92), 2 states have internal predecessors, (92), 2 states have call successors, (51), 2 states have call predecessors, (51), 1 states have return successors, (51), 1 states have call predecessors, (51), 2 states have call successors, (51) Word has length 342 [2024-11-22 11:38:09,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 11:38:09,440 INFO L225 Difference]: With dead ends: 399 [2024-11-22 11:38:09,441 INFO L226 Difference]: Without dead ends: 199 [2024-11-22 11:38:09,446 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 343 GetRequests, 343 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 11:38:09,449 INFO L432 NwaCegarLoop]: 322 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, 322 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 11:38:09,450 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 322 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 11:38:09,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 199 states. [2024-11-22 11:38:09,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 199 to 199. [2024-11-22 11:38:09,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 199 states, 146 states have (on average 1.5068493150684932) internal successors, (220), 146 states have internal predecessors, (220), 51 states have call successors, (51), 1 states have call predecessors, (51), 1 states have return successors, (51), 51 states have call predecessors, (51), 51 states have call successors, (51) [2024-11-22 11:38:09,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 322 transitions. [2024-11-22 11:38:09,500 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 322 transitions. Word has length 342 [2024-11-22 11:38:09,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 11:38:09,500 INFO L471 AbstractCegarLoop]: Abstraction has 199 states and 322 transitions. [2024-11-22 11:38:09,500 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 46.0) internal successors, (92), 2 states have internal predecessors, (92), 2 states have call successors, (51), 2 states have call predecessors, (51), 1 states have return successors, (51), 1 states have call predecessors, (51), 2 states have call successors, (51) [2024-11-22 11:38:09,500 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 322 transitions. [2024-11-22 11:38:09,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 343 [2024-11-22 11:38:09,525 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 11:38:09,527 INFO L215 NwaCegarLoop]: trace histogram [51, 51, 51, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:38:09,535 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 11:38:09,727 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,SelfDestructingSolverStorable0 [2024-11-22 11:38:09,728 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 11:38:09,728 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 11:38:09,729 INFO L85 PathProgramCache]: Analyzing trace with hash -1292476114, now seen corresponding path program 1 times [2024-11-22 11:38:09,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 11:38:09,729 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [568436121] [2024-11-22 11:38:09,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 11:38:09,729 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 11:38:09,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 11:38:10,057 INFO L134 CoverageAnalysis]: Checked inductivity of 5100 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5100 trivial. 0 not checked. [2024-11-22 11:38:10,061 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 11:38:10,061 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [568436121] [2024-11-22 11:38:10,061 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [568436121] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 11:38:10,062 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 11:38:10,062 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 11:38:10,062 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1678977205] [2024-11-22 11:38:10,062 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 11:38:10,063 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 11:38:10,063 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 11:38:10,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 11:38:10,068 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 11:38:10,068 INFO L87 Difference]: Start difference. First operand 199 states and 322 transitions. Second operand has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 1 states have call successors, (51), 1 states have call predecessors, (51), 1 states have return successors, (51), 1 states have call predecessors, (51), 1 states have call successors, (51) [2024-11-22 11:38:10,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 11:38:10,181 INFO L93 Difference]: Finished difference Result 585 states and 950 transitions. [2024-11-22 11:38:10,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 11:38:10,182 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 1 states have call successors, (51), 1 states have call predecessors, (51), 1 states have return successors, (51), 1 states have call predecessors, (51), 1 states have call successors, (51) Word has length 342 [2024-11-22 11:38:10,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 11:38:10,188 INFO L225 Difference]: With dead ends: 585 [2024-11-22 11:38:10,190 INFO L226 Difference]: Without dead ends: 389 [2024-11-22 11:38:10,191 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 11:38:10,192 INFO L432 NwaCegarLoop]: 382 mSDtfsCounter, 282 mSDsluCounter, 288 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 282 SdHoareTripleChecker+Valid, 670 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 11:38:10,194 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [282 Valid, 670 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 11:38:10,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 389 states. [2024-11-22 11:38:10,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 389 to 385. [2024-11-22 11:38:10,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 385 states, 280 states have (on average 1.4892857142857143) internal successors, (417), 280 states have internal predecessors, (417), 102 states have call successors, (102), 2 states have call predecessors, (102), 2 states have return successors, (102), 102 states have call predecessors, (102), 102 states have call successors, (102) [2024-11-22 11:38:10,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 385 states to 385 states and 621 transitions. [2024-11-22 11:38:10,251 INFO L78 Accepts]: Start accepts. Automaton has 385 states and 621 transitions. Word has length 342 [2024-11-22 11:38:10,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 11:38:10,254 INFO L471 AbstractCegarLoop]: Abstraction has 385 states and 621 transitions. [2024-11-22 11:38:10,254 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 1 states have call successors, (51), 1 states have call predecessors, (51), 1 states have return successors, (51), 1 states have call predecessors, (51), 1 states have call successors, (51) [2024-11-22 11:38:10,254 INFO L276 IsEmpty]: Start isEmpty. Operand 385 states and 621 transitions. [2024-11-22 11:38:10,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 343 [2024-11-22 11:38:10,258 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 11:38:10,259 INFO L215 NwaCegarLoop]: trace histogram [51, 51, 51, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:38:10,259 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-22 11:38:10,259 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 11:38:10,260 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 11:38:10,261 INFO L85 PathProgramCache]: Analyzing trace with hash 137212842, now seen corresponding path program 1 times [2024-11-22 11:38:10,261 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 11:38:10,261 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [891568706] [2024-11-22 11:38:10,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 11:38:10,261 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 11:38:10,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 11:38:10,623 INFO L134 CoverageAnalysis]: Checked inductivity of 5100 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5100 trivial. 0 not checked. [2024-11-22 11:38:10,623 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 11:38:10,624 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [891568706] [2024-11-22 11:38:10,624 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [891568706] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 11:38:10,625 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 11:38:10,625 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 11:38:10,625 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [466028022] [2024-11-22 11:38:10,625 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 11:38:10,628 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 11:38:10,629 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 11:38:10,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 11:38:10,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-22 11:38:10,630 INFO L87 Difference]: Start difference. First operand 385 states and 621 transitions. Second operand has 4 states, 4 states have (on average 22.5) internal successors, (90), 4 states have internal predecessors, (90), 3 states have call successors, (51), 1 states have call predecessors, (51), 1 states have return successors, (51), 3 states have call predecessors, (51), 3 states have call successors, (51) [2024-11-22 11:38:10,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 11:38:10,681 INFO L93 Difference]: Finished difference Result 767 states and 1239 transitions. [2024-11-22 11:38:10,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 11:38:10,682 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.5) internal successors, (90), 4 states have internal predecessors, (90), 3 states have call successors, (51), 1 states have call predecessors, (51), 1 states have return successors, (51), 3 states have call predecessors, (51), 3 states have call successors, (51) Word has length 342 [2024-11-22 11:38:10,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 11:38:10,688 INFO L225 Difference]: With dead ends: 767 [2024-11-22 11:38:10,688 INFO L226 Difference]: Without dead ends: 385 [2024-11-22 11:38:10,689 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-22 11:38:10,690 INFO L432 NwaCegarLoop]: 310 mSDtfsCounter, 283 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 283 SdHoareTripleChecker+Valid, 310 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 11:38:10,691 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [283 Valid, 310 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 11:38:10,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 385 states. [2024-11-22 11:38:10,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 385 to 385. [2024-11-22 11:38:10,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 385 states, 280 states have (on average 1.4821428571428572) internal successors, (415), 280 states have internal predecessors, (415), 102 states have call successors, (102), 2 states have call predecessors, (102), 2 states have return successors, (102), 102 states have call predecessors, (102), 102 states have call successors, (102) [2024-11-22 11:38:10,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 385 states to 385 states and 619 transitions. [2024-11-22 11:38:10,724 INFO L78 Accepts]: Start accepts. Automaton has 385 states and 619 transitions. Word has length 342 [2024-11-22 11:38:10,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 11:38:10,726 INFO L471 AbstractCegarLoop]: Abstraction has 385 states and 619 transitions. [2024-11-22 11:38:10,726 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.5) internal successors, (90), 4 states have internal predecessors, (90), 3 states have call successors, (51), 1 states have call predecessors, (51), 1 states have return successors, (51), 3 states have call predecessors, (51), 3 states have call successors, (51) [2024-11-22 11:38:10,726 INFO L276 IsEmpty]: Start isEmpty. Operand 385 states and 619 transitions. [2024-11-22 11:38:10,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 344 [2024-11-22 11:38:10,730 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 11:38:10,730 INFO L215 NwaCegarLoop]: trace histogram [51, 51, 51, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:38:10,730 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-22 11:38:10,730 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 11:38:10,731 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 11:38:10,731 INFO L85 PathProgramCache]: Analyzing trace with hash -1497096082, now seen corresponding path program 1 times [2024-11-22 11:38:10,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 11:38:10,732 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1169614019] [2024-11-22 11:38:10,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 11:38:10,732 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 11:38:11,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 11:38:11,530 INFO L134 CoverageAnalysis]: Checked inductivity of 5100 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5100 trivial. 0 not checked. [2024-11-22 11:38:11,530 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 11:38:11,530 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1169614019] [2024-11-22 11:38:11,530 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1169614019] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 11:38:11,531 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 11:38:11,531 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 11:38:11,531 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1988210585] [2024-11-22 11:38:11,531 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 11:38:11,535 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 11:38:11,535 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 11:38:11,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 11:38:11,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-22 11:38:11,536 INFO L87 Difference]: Start difference. First operand 385 states and 619 transitions. Second operand has 5 states, 5 states have (on average 18.2) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (51), 1 states have call predecessors, (51), 1 states have return successors, (51), 2 states have call predecessors, (51), 2 states have call successors, (51) [2024-11-22 11:38:11,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 11:38:11,861 INFO L93 Difference]: Finished difference Result 1056 states and 1699 transitions. [2024-11-22 11:38:11,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 11:38:11,862 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (51), 1 states have call predecessors, (51), 1 states have return successors, (51), 2 states have call predecessors, (51), 2 states have call successors, (51) Word has length 343 [2024-11-22 11:38:11,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 11:38:11,868 INFO L225 Difference]: With dead ends: 1056 [2024-11-22 11:38:11,868 INFO L226 Difference]: Without dead ends: 674 [2024-11-22 11:38:11,870 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-22 11:38:11,870 INFO L432 NwaCegarLoop]: 318 mSDtfsCounter, 356 mSDsluCounter, 911 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 192 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 356 SdHoareTripleChecker+Valid, 1229 SdHoareTripleChecker+Invalid, 238 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 192 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-22 11:38:11,871 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [356 Valid, 1229 Invalid, 238 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [192 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-22 11:38:11,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 674 states. [2024-11-22 11:38:11,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 674 to 471. [2024-11-22 11:38:11,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 471 states, 314 states have (on average 1.4331210191082802) internal successors, (450), 314 states have internal predecessors, (450), 153 states have call successors, (153), 3 states have call predecessors, (153), 3 states have return successors, (153), 153 states have call predecessors, (153), 153 states have call successors, (153) [2024-11-22 11:38:11,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 471 states to 471 states and 756 transitions. [2024-11-22 11:38:11,935 INFO L78 Accepts]: Start accepts. Automaton has 471 states and 756 transitions. Word has length 343 [2024-11-22 11:38:11,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 11:38:11,936 INFO L471 AbstractCegarLoop]: Abstraction has 471 states and 756 transitions. [2024-11-22 11:38:11,936 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (51), 1 states have call predecessors, (51), 1 states have return successors, (51), 2 states have call predecessors, (51), 2 states have call successors, (51) [2024-11-22 11:38:11,937 INFO L276 IsEmpty]: Start isEmpty. Operand 471 states and 756 transitions. [2024-11-22 11:38:11,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 344 [2024-11-22 11:38:11,940 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 11:38:11,940 INFO L215 NwaCegarLoop]: trace histogram [51, 51, 51, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:38:11,940 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-22 11:38:11,940 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 11:38:11,940 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 11:38:11,941 INFO L85 PathProgramCache]: Analyzing trace with hash -808539634, now seen corresponding path program 1 times [2024-11-22 11:38:11,941 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 11:38:11,941 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1190862392] [2024-11-22 11:38:11,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 11:38:11,941 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 11:38:12,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 11:38:12,415 INFO L134 CoverageAnalysis]: Checked inductivity of 5100 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5100 trivial. 0 not checked. [2024-11-22 11:38:12,415 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 11:38:12,415 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1190862392] [2024-11-22 11:38:12,416 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1190862392] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 11:38:12,416 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 11:38:12,416 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 11:38:12,416 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1108569497] [2024-11-22 11:38:12,416 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 11:38:12,417 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 11:38:12,417 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 11:38:12,417 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 11:38:12,417 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 11:38:12,418 INFO L87 Difference]: Start difference. First operand 471 states and 756 transitions. Second operand has 4 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 1 states have call successors, (51), 1 states have call predecessors, (51), 1 states have return successors, (51), 1 states have call predecessors, (51), 1 states have call successors, (51) [2024-11-22 11:38:12,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 11:38:12,647 INFO L93 Difference]: Finished difference Result 1052 states and 1690 transitions. [2024-11-22 11:38:12,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 11:38:12,648 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 1 states have call successors, (51), 1 states have call predecessors, (51), 1 states have return successors, (51), 1 states have call predecessors, (51), 1 states have call successors, (51) Word has length 343 [2024-11-22 11:38:12,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 11:38:12,652 INFO L225 Difference]: With dead ends: 1052 [2024-11-22 11:38:12,652 INFO L226 Difference]: Without dead ends: 670 [2024-11-22 11:38:12,653 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 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 11:38:12,654 INFO L432 NwaCegarLoop]: 318 mSDtfsCounter, 321 mSDsluCounter, 626 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 154 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 321 SdHoareTripleChecker+Valid, 944 SdHoareTripleChecker+Invalid, 167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 154 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-22 11:38:12,654 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [321 Valid, 944 Invalid, 167 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [154 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-22 11:38:12,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 670 states. [2024-11-22 11:38:12,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 670 to 490. [2024-11-22 11:38:12,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 490 states, 333 states have (on average 1.4444444444444444) internal successors, (481), 333 states have internal predecessors, (481), 153 states have call successors, (153), 3 states have call predecessors, (153), 3 states have return successors, (153), 153 states have call predecessors, (153), 153 states have call successors, (153) [2024-11-22 11:38:12,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 490 states to 490 states and 787 transitions. [2024-11-22 11:38:12,690 INFO L78 Accepts]: Start accepts. Automaton has 490 states and 787 transitions. Word has length 343 [2024-11-22 11:38:12,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 11:38:12,693 INFO L471 AbstractCegarLoop]: Abstraction has 490 states and 787 transitions. [2024-11-22 11:38:12,693 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 1 states have call successors, (51), 1 states have call predecessors, (51), 1 states have return successors, (51), 1 states have call predecessors, (51), 1 states have call successors, (51) [2024-11-22 11:38:12,693 INFO L276 IsEmpty]: Start isEmpty. Operand 490 states and 787 transitions. [2024-11-22 11:38:12,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 344 [2024-11-22 11:38:12,697 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 11:38:12,698 INFO L215 NwaCegarLoop]: trace histogram [51, 51, 51, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:38:12,698 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-22 11:38:12,698 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 11:38:12,699 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 11:38:12,699 INFO L85 PathProgramCache]: Analyzing trace with hash 1814730811, now seen corresponding path program 1 times [2024-11-22 11:38:12,699 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 11:38:12,699 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1850729935] [2024-11-22 11:38:12,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 11:38:12,699 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 11:38:13,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 11:38:30,740 INFO L134 CoverageAnalysis]: Checked inductivity of 5100 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5100 trivial. 0 not checked. [2024-11-22 11:38:30,740 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 11:38:30,741 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1850729935] [2024-11-22 11:38:30,741 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1850729935] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 11:38:30,741 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 11:38:30,741 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 11:38:30,741 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1973702307] [2024-11-22 11:38:30,741 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 11:38:30,742 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 11:38:30,742 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 11:38:30,742 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 11:38:30,743 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-22 11:38:30,743 INFO L87 Difference]: Start difference. First operand 490 states and 787 transitions. Second operand has 5 states, 5 states have (on average 18.2) internal successors, (91), 5 states have internal predecessors, (91), 1 states have call successors, (51), 1 states have call predecessors, (51), 1 states have return successors, (51), 1 states have call predecessors, (51), 1 states have call successors, (51) [2024-11-22 11:38:31,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 11:38:31,280 INFO L93 Difference]: Finished difference Result 1345 states and 2143 transitions. [2024-11-22 11:38:31,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 11:38:31,282 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 5 states have internal predecessors, (91), 1 states have call successors, (51), 1 states have call predecessors, (51), 1 states have return successors, (51), 1 states have call predecessors, (51), 1 states have call successors, (51) Word has length 343 [2024-11-22 11:38:31,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 11:38:31,287 INFO L225 Difference]: With dead ends: 1345 [2024-11-22 11:38:31,287 INFO L226 Difference]: Without dead ends: 963 [2024-11-22 11:38:31,288 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-22 11:38:31,289 INFO L432 NwaCegarLoop]: 359 mSDtfsCounter, 392 mSDsluCounter, 665 mSDsCounter, 0 mSdLazyCounter, 353 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 392 SdHoareTripleChecker+Valid, 1024 SdHoareTripleChecker+Invalid, 355 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 353 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-22 11:38:31,290 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [392 Valid, 1024 Invalid, 355 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 353 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-22 11:38:31,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 963 states. [2024-11-22 11:38:31,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 963 to 583. [2024-11-22 11:38:31,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 583 states, 420 states have (on average 1.4333333333333333) internal successors, (602), 422 states have internal predecessors, (602), 157 states have call successors, (157), 5 states have call predecessors, (157), 5 states have return successors, (157), 155 states have call predecessors, (157), 157 states have call successors, (157) [2024-11-22 11:38:31,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 583 states to 583 states and 916 transitions. [2024-11-22 11:38:31,346 INFO L78 Accepts]: Start accepts. Automaton has 583 states and 916 transitions. Word has length 343 [2024-11-22 11:38:31,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 11:38:31,347 INFO L471 AbstractCegarLoop]: Abstraction has 583 states and 916 transitions. [2024-11-22 11:38:31,347 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 5 states have internal predecessors, (91), 1 states have call successors, (51), 1 states have call predecessors, (51), 1 states have return successors, (51), 1 states have call predecessors, (51), 1 states have call successors, (51) [2024-11-22 11:38:31,347 INFO L276 IsEmpty]: Start isEmpty. Operand 583 states and 916 transitions. [2024-11-22 11:38:31,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 344 [2024-11-22 11:38:31,351 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 11:38:31,351 INFO L215 NwaCegarLoop]: trace histogram [51, 51, 51, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:38:31,351 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-22 11:38:31,352 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 11:38:31,352 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 11:38:31,352 INFO L85 PathProgramCache]: Analyzing trace with hash -179413895, now seen corresponding path program 1 times [2024-11-22 11:38:31,352 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 11:38:31,353 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2064129417] [2024-11-22 11:38:31,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 11:38:31,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 11:38:31,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 11:38:31,479 INFO L134 CoverageAnalysis]: Checked inductivity of 5100 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5100 trivial. 0 not checked. [2024-11-22 11:38:31,479 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 11:38:31,480 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2064129417] [2024-11-22 11:38:31,480 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2064129417] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 11:38:31,480 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 11:38:31,480 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 11:38:31,480 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1613431628] [2024-11-22 11:38:31,480 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 11:38:31,482 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 11:38:31,482 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 11:38:31,483 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 11:38:31,483 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 11:38:31,483 INFO L87 Difference]: Start difference. First operand 583 states and 916 transitions. Second operand has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 1 states have call successors, (51), 1 states have call predecessors, (51), 1 states have return successors, (51), 1 states have call predecessors, (51), 1 states have call successors, (51) [2024-11-22 11:38:31,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 11:38:31,536 INFO L93 Difference]: Finished difference Result 1440 states and 2277 transitions. [2024-11-22 11:38:31,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 11:38:31,537 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), 1 states have call successors, (51), 1 states have call predecessors, (51), 1 states have return successors, (51), 1 states have call predecessors, (51), 1 states have call successors, (51) Word has length 343 [2024-11-22 11:38:31,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 11:38:31,542 INFO L225 Difference]: With dead ends: 1440 [2024-11-22 11:38:31,542 INFO L226 Difference]: Without dead ends: 965 [2024-11-22 11:38:31,543 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 11:38:31,544 INFO L432 NwaCegarLoop]: 410 mSDtfsCounter, 315 mSDsluCounter, 310 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 315 SdHoareTripleChecker+Valid, 720 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 11:38:31,545 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [315 Valid, 720 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 11:38:31,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 965 states. [2024-11-22 11:38:31,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 965 to 963. [2024-11-22 11:38:31,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 963 states, 696 states have (on average 1.4497126436781609) internal successors, (1009), 698 states have internal predecessors, (1009), 259 states have call successors, (259), 7 states have call predecessors, (259), 7 states have return successors, (259), 257 states have call predecessors, (259), 259 states have call successors, (259) [2024-11-22 11:38:31,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 963 states to 963 states and 1527 transitions. [2024-11-22 11:38:31,608 INFO L78 Accepts]: Start accepts. Automaton has 963 states and 1527 transitions. Word has length 343 [2024-11-22 11:38:31,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 11:38:31,609 INFO L471 AbstractCegarLoop]: Abstraction has 963 states and 1527 transitions. [2024-11-22 11:38:31,609 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), 1 states have call successors, (51), 1 states have call predecessors, (51), 1 states have return successors, (51), 1 states have call predecessors, (51), 1 states have call successors, (51) [2024-11-22 11:38:31,609 INFO L276 IsEmpty]: Start isEmpty. Operand 963 states and 1527 transitions. [2024-11-22 11:38:31,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 344 [2024-11-22 11:38:31,612 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 11:38:31,613 INFO L215 NwaCegarLoop]: trace histogram [51, 51, 51, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:38:31,613 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-22 11:38:31,613 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 11:38:31,614 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 11:38:31,614 INFO L85 PathProgramCache]: Analyzing trace with hash -1200482249, now seen corresponding path program 1 times [2024-11-22 11:38:31,614 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 11:38:31,614 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [988756528] [2024-11-22 11:38:31,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 11:38:31,614 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 11:38:31,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 11:38:32,383 INFO L134 CoverageAnalysis]: Checked inductivity of 5100 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5100 trivial. 0 not checked. [2024-11-22 11:38:32,384 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 11:38:32,384 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [988756528] [2024-11-22 11:38:32,384 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [988756528] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 11:38:32,384 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 11:38:32,384 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 11:38:32,384 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [389820314] [2024-11-22 11:38:32,384 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 11:38:32,385 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 11:38:32,385 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 11:38:32,385 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 11:38:32,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-22 11:38:32,385 INFO L87 Difference]: Start difference. First operand 963 states and 1527 transitions. Second operand has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 6 states have internal predecessors, (91), 1 states have call successors, (51), 1 states have call predecessors, (51), 1 states have return successors, (51), 1 states have call predecessors, (51), 1 states have call successors, (51) [2024-11-22 11:38:32,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 11:38:32,771 INFO L93 Difference]: Finished difference Result 2920 states and 4517 transitions. [2024-11-22 11:38:32,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 11:38:32,771 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 6 states have internal predecessors, (91), 1 states have call successors, (51), 1 states have call predecessors, (51), 1 states have return successors, (51), 1 states have call predecessors, (51), 1 states have call successors, (51) Word has length 343 [2024-11-22 11:38:32,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 11:38:32,780 INFO L225 Difference]: With dead ends: 2920 [2024-11-22 11:38:32,780 INFO L226 Difference]: Without dead ends: 2065 [2024-11-22 11:38:32,785 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-22 11:38:32,785 INFO L432 NwaCegarLoop]: 379 mSDtfsCounter, 664 mSDsluCounter, 918 mSDsCounter, 0 mSdLazyCounter, 200 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 664 SdHoareTripleChecker+Valid, 1297 SdHoareTripleChecker+Invalid, 262 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 200 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-22 11:38:32,786 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [664 Valid, 1297 Invalid, 262 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 200 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-22 11:38:32,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2065 states. [2024-11-22 11:38:32,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2065 to 1474. [2024-11-22 11:38:32,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1474 states, 1141 states have (on average 1.460122699386503) internal successors, (1666), 1149 states have internal predecessors, (1666), 319 states have call successors, (319), 13 states have call predecessors, (319), 13 states have return successors, (319), 311 states have call predecessors, (319), 319 states have call successors, (319) [2024-11-22 11:38:32,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1474 states to 1474 states and 2304 transitions. [2024-11-22 11:38:32,864 INFO L78 Accepts]: Start accepts. Automaton has 1474 states and 2304 transitions. Word has length 343 [2024-11-22 11:38:32,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 11:38:32,864 INFO L471 AbstractCegarLoop]: Abstraction has 1474 states and 2304 transitions. [2024-11-22 11:38:32,865 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 6 states have internal predecessors, (91), 1 states have call successors, (51), 1 states have call predecessors, (51), 1 states have return successors, (51), 1 states have call predecessors, (51), 1 states have call successors, (51) [2024-11-22 11:38:32,865 INFO L276 IsEmpty]: Start isEmpty. Operand 1474 states and 2304 transitions. [2024-11-22 11:38:32,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 344 [2024-11-22 11:38:32,868 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 11:38:32,868 INFO L215 NwaCegarLoop]: trace histogram [51, 51, 51, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:38:32,869 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-22 11:38:32,869 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 11:38:32,869 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 11:38:32,869 INFO L85 PathProgramCache]: Analyzing trace with hash 1668038009, now seen corresponding path program 1 times [2024-11-22 11:38:32,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 11:38:32,869 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [830320333] [2024-11-22 11:38:32,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 11:38:32,870 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 11:38:33,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 11:38:33,746 INFO L134 CoverageAnalysis]: Checked inductivity of 5100 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5100 trivial. 0 not checked. [2024-11-22 11:38:33,747 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 11:38:33,747 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [830320333] [2024-11-22 11:38:33,747 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [830320333] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 11:38:33,747 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 11:38:33,748 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 11:38:33,748 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1245408785] [2024-11-22 11:38:33,748 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 11:38:33,748 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 11:38:33,751 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 11:38:33,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 11:38:33,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-22 11:38:33,752 INFO L87 Difference]: Start difference. First operand 1474 states and 2304 transitions. Second operand has 5 states, 5 states have (on average 18.2) internal successors, (91), 5 states have internal predecessors, (91), 1 states have call successors, (51), 1 states have call predecessors, (51), 1 states have return successors, (51), 1 states have call predecessors, (51), 1 states have call successors, (51) [2024-11-22 11:38:34,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 11:38:34,146 INFO L93 Difference]: Finished difference Result 4947 states and 7585 transitions. [2024-11-22 11:38:34,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 11:38:34,147 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 5 states have internal predecessors, (91), 1 states have call successors, (51), 1 states have call predecessors, (51), 1 states have return successors, (51), 1 states have call predecessors, (51), 1 states have call successors, (51) Word has length 343 [2024-11-22 11:38:34,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 11:38:34,160 INFO L225 Difference]: With dead ends: 4947 [2024-11-22 11:38:34,161 INFO L226 Difference]: Without dead ends: 3581 [2024-11-22 11:38:34,164 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-22 11:38:34,166 INFO L432 NwaCegarLoop]: 421 mSDtfsCounter, 602 mSDsluCounter, 770 mSDsCounter, 0 mSdLazyCounter, 162 mSolverCounterSat, 119 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 602 SdHoareTripleChecker+Valid, 1191 SdHoareTripleChecker+Invalid, 281 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 119 IncrementalHoareTripleChecker+Valid, 162 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-22 11:38:34,166 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [602 Valid, 1191 Invalid, 281 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [119 Valid, 162 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-22 11:38:34,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3581 states. [2024-11-22 11:38:34,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3581 to 1945. [2024-11-22 11:38:34,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1945 states, 1579 states have (on average 1.486383787207093) internal successors, (2347), 1589 states have internal predecessors, (2347), 347 states have call successors, (347), 18 states have call predecessors, (347), 18 states have return successors, (347), 337 states have call predecessors, (347), 347 states have call successors, (347) [2024-11-22 11:38:34,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1945 states to 1945 states and 3041 transitions. [2024-11-22 11:38:34,284 INFO L78 Accepts]: Start accepts. Automaton has 1945 states and 3041 transitions. Word has length 343 [2024-11-22 11:38:34,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 11:38:34,285 INFO L471 AbstractCegarLoop]: Abstraction has 1945 states and 3041 transitions. [2024-11-22 11:38:34,285 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 5 states have internal predecessors, (91), 1 states have call successors, (51), 1 states have call predecessors, (51), 1 states have return successors, (51), 1 states have call predecessors, (51), 1 states have call successors, (51) [2024-11-22 11:38:34,285 INFO L276 IsEmpty]: Start isEmpty. Operand 1945 states and 3041 transitions. [2024-11-22 11:38:34,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 344 [2024-11-22 11:38:34,290 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 11:38:34,290 INFO L215 NwaCegarLoop]: trace histogram [51, 51, 51, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:38:34,290 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-22 11:38:34,290 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 11:38:34,290 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 11:38:34,291 INFO L85 PathProgramCache]: Analyzing trace with hash -2018130699, now seen corresponding path program 1 times [2024-11-22 11:38:34,291 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 11:38:34,291 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1761024977] [2024-11-22 11:38:34,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 11:38:34,291 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 11:38:34,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 11:38:34,976 INFO L134 CoverageAnalysis]: Checked inductivity of 5100 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5100 trivial. 0 not checked. [2024-11-22 11:38:34,977 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 11:38:34,977 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1761024977] [2024-11-22 11:38:34,977 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1761024977] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 11:38:34,977 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 11:38:34,977 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 11:38:34,977 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [97981488] [2024-11-22 11:38:34,977 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 11:38:34,978 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 11:38:34,978 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 11:38:34,978 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 11:38:34,978 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-22 11:38:34,979 INFO L87 Difference]: Start difference. First operand 1945 states and 3041 transitions. Second operand has 5 states, 5 states have (on average 18.2) internal successors, (91), 5 states have internal predecessors, (91), 1 states have call successors, (51), 1 states have call predecessors, (51), 1 states have return successors, (51), 1 states have call predecessors, (51), 1 states have call successors, (51) [2024-11-22 11:38:35,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 11:38:35,375 INFO L93 Difference]: Finished difference Result 5174 states and 7986 transitions. [2024-11-22 11:38:35,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 11:38:35,376 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 5 states have internal predecessors, (91), 1 states have call successors, (51), 1 states have call predecessors, (51), 1 states have return successors, (51), 1 states have call predecessors, (51), 1 states have call successors, (51) Word has length 343 [2024-11-22 11:38:35,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 11:38:35,390 INFO L225 Difference]: With dead ends: 5174 [2024-11-22 11:38:35,391 INFO L226 Difference]: Without dead ends: 3348 [2024-11-22 11:38:35,395 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-22 11:38:35,396 INFO L432 NwaCegarLoop]: 408 mSDtfsCounter, 819 mSDsluCounter, 768 mSDsCounter, 0 mSdLazyCounter, 178 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 819 SdHoareTripleChecker+Valid, 1176 SdHoareTripleChecker+Invalid, 238 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 178 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-22 11:38:35,396 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [819 Valid, 1176 Invalid, 238 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 178 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-22 11:38:35,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3348 states. [2024-11-22 11:38:35,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3348 to 1990. [2024-11-22 11:38:35,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1990 states, 1624 states have (on average 1.4907635467980296) internal successors, (2421), 1634 states have internal predecessors, (2421), 347 states have call successors, (347), 18 states have call predecessors, (347), 18 states have return successors, (347), 337 states have call predecessors, (347), 347 states have call successors, (347) [2024-11-22 11:38:35,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1990 states to 1990 states and 3115 transitions. [2024-11-22 11:38:35,508 INFO L78 Accepts]: Start accepts. Automaton has 1990 states and 3115 transitions. Word has length 343 [2024-11-22 11:38:35,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 11:38:35,508 INFO L471 AbstractCegarLoop]: Abstraction has 1990 states and 3115 transitions. [2024-11-22 11:38:35,509 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 5 states have internal predecessors, (91), 1 states have call successors, (51), 1 states have call predecessors, (51), 1 states have return successors, (51), 1 states have call predecessors, (51), 1 states have call successors, (51) [2024-11-22 11:38:35,509 INFO L276 IsEmpty]: Start isEmpty. Operand 1990 states and 3115 transitions. [2024-11-22 11:38:35,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 344 [2024-11-22 11:38:35,515 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 11:38:35,516 INFO L215 NwaCegarLoop]: trace histogram [51, 51, 51, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:38:35,516 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-22 11:38:35,516 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 11:38:35,517 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 11:38:35,517 INFO L85 PathProgramCache]: Analyzing trace with hash 850389559, now seen corresponding path program 1 times [2024-11-22 11:38:35,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 11:38:35,517 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [537984414] [2024-11-22 11:38:35,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 11:38:35,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 11:38:35,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 11:38:36,058 INFO L134 CoverageAnalysis]: Checked inductivity of 5100 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5100 trivial. 0 not checked. [2024-11-22 11:38:36,060 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 11:38:36,060 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [537984414] [2024-11-22 11:38:36,060 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [537984414] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 11:38:36,060 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 11:38:36,060 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 11:38:36,060 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2038925277] [2024-11-22 11:38:36,061 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 11:38:36,061 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 11:38:36,061 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 11:38:36,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 11:38:36,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-22 11:38:36,062 INFO L87 Difference]: Start difference. First operand 1990 states and 3115 transitions. Second operand has 4 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 1 states have call successors, (51), 1 states have call predecessors, (51), 1 states have return successors, (51), 1 states have call predecessors, (51), 1 states have call successors, (51) [2024-11-22 11:38:36,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 11:38:36,424 INFO L93 Difference]: Finished difference Result 5412 states and 8319 transitions. [2024-11-22 11:38:36,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 11:38:36,425 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 1 states have call successors, (51), 1 states have call predecessors, (51), 1 states have return successors, (51), 1 states have call predecessors, (51), 1 states have call successors, (51) Word has length 343 [2024-11-22 11:38:36,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 11:38:36,440 INFO L225 Difference]: With dead ends: 5412 [2024-11-22 11:38:36,440 INFO L226 Difference]: Without dead ends: 3541 [2024-11-22 11:38:36,445 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-22 11:38:36,446 INFO L432 NwaCegarLoop]: 460 mSDtfsCounter, 226 mSDsluCounter, 621 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 226 SdHoareTripleChecker+Valid, 1081 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 11:38:36,446 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [226 Valid, 1081 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 11:38:36,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3541 states. [2024-11-22 11:38:36,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3541 to 3271. [2024-11-22 11:38:36,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3271 states, 2665 states have (on average 1.4431519699812383) internal successors, (3846), 2693 states have internal predecessors, (3846), 563 states have call successors, (563), 42 states have call predecessors, (563), 42 states have return successors, (563), 535 states have call predecessors, (563), 563 states have call successors, (563) [2024-11-22 11:38:36,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3271 states to 3271 states and 4972 transitions. [2024-11-22 11:38:36,616 INFO L78 Accepts]: Start accepts. Automaton has 3271 states and 4972 transitions. Word has length 343 [2024-11-22 11:38:36,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 11:38:36,616 INFO L471 AbstractCegarLoop]: Abstraction has 3271 states and 4972 transitions. [2024-11-22 11:38:36,617 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 1 states have call successors, (51), 1 states have call predecessors, (51), 1 states have return successors, (51), 1 states have call predecessors, (51), 1 states have call successors, (51) [2024-11-22 11:38:36,617 INFO L276 IsEmpty]: Start isEmpty. Operand 3271 states and 4972 transitions. [2024-11-22 11:38:36,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 344 [2024-11-22 11:38:36,620 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 11:38:36,620 INFO L215 NwaCegarLoop]: trace histogram [51, 51, 51, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:38:36,620 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-22 11:38:36,620 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 11:38:36,621 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 11:38:36,621 INFO L85 PathProgramCache]: Analyzing trace with hash -2097875527, now seen corresponding path program 1 times [2024-11-22 11:38:36,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 11:38:36,621 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [224189990] [2024-11-22 11:38:36,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 11:38:36,621 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 11:38:36,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 11:38:46,762 INFO L134 CoverageAnalysis]: Checked inductivity of 5100 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5100 trivial. 0 not checked. [2024-11-22 11:38:46,764 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 11:38:46,764 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [224189990] [2024-11-22 11:38:46,765 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [224189990] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 11:38:46,765 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 11:38:46,765 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 11:38:46,765 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1604094397] [2024-11-22 11:38:46,765 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 11:38:46,765 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 11:38:46,765 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 11:38:46,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 11:38:46,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-22 11:38:46,766 INFO L87 Difference]: Start difference. First operand 3271 states and 4972 transitions. Second operand has 5 states, 5 states have (on average 18.2) internal successors, (91), 5 states have internal predecessors, (91), 1 states have call successors, (51), 1 states have call predecessors, (51), 1 states have return successors, (51), 1 states have call predecessors, (51), 1 states have call successors, (51) [2024-11-22 11:38:47,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 11:38:47,436 INFO L93 Difference]: Finished difference Result 8297 states and 12705 transitions. [2024-11-22 11:38:47,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 11:38:47,437 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 5 states have internal predecessors, (91), 1 states have call successors, (51), 1 states have call predecessors, (51), 1 states have return successors, (51), 1 states have call predecessors, (51), 1 states have call successors, (51) Word has length 343 [2024-11-22 11:38:47,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 11:38:47,460 INFO L225 Difference]: With dead ends: 8297 [2024-11-22 11:38:47,460 INFO L226 Difference]: Without dead ends: 5145 [2024-11-22 11:38:47,467 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-22 11:38:47,468 INFO L432 NwaCegarLoop]: 419 mSDtfsCounter, 376 mSDsluCounter, 700 mSDsCounter, 0 mSdLazyCounter, 375 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 376 SdHoareTripleChecker+Valid, 1119 SdHoareTripleChecker+Invalid, 376 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 375 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-22 11:38:47,468 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [376 Valid, 1119 Invalid, 376 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 375 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-22 11:38:47,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5145 states. [2024-11-22 11:38:47,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5145 to 3674. [2024-11-22 11:38:47,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3674 states, 2812 states have (on average 1.4196301564722618) internal successors, (3992), 2840 states have internal predecessors, (3992), 811 states have call successors, (811), 50 states have call predecessors, (811), 50 states have return successors, (811), 783 states have call predecessors, (811), 811 states have call successors, (811) [2024-11-22 11:38:47,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3674 states to 3674 states and 5614 transitions. [2024-11-22 11:38:47,710 INFO L78 Accepts]: Start accepts. Automaton has 3674 states and 5614 transitions. Word has length 343 [2024-11-22 11:38:47,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 11:38:47,711 INFO L471 AbstractCegarLoop]: Abstraction has 3674 states and 5614 transitions. [2024-11-22 11:38:47,711 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 5 states have internal predecessors, (91), 1 states have call successors, (51), 1 states have call predecessors, (51), 1 states have return successors, (51), 1 states have call predecessors, (51), 1 states have call successors, (51) [2024-11-22 11:38:47,712 INFO L276 IsEmpty]: Start isEmpty. Operand 3674 states and 5614 transitions. [2024-11-22 11:38:47,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 344 [2024-11-22 11:38:47,715 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 11:38:47,715 INFO L215 NwaCegarLoop]: trace histogram [51, 51, 51, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:38:47,715 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-22 11:38:47,715 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 11:38:47,715 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 11:38:47,715 INFO L85 PathProgramCache]: Analyzing trace with hash -795893121, now seen corresponding path program 1 times [2024-11-22 11:38:47,716 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 11:38:47,716 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [46121976] [2024-11-22 11:38:47,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 11:38:47,716 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 11:38:47,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 11:38:48,526 INFO L134 CoverageAnalysis]: Checked inductivity of 5100 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5100 trivial. 0 not checked. [2024-11-22 11:38:48,526 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 11:38:48,526 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [46121976] [2024-11-22 11:38:48,527 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [46121976] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 11:38:48,527 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 11:38:48,527 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 11:38:48,527 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1226620951] [2024-11-22 11:38:48,527 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 11:38:48,527 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 11:38:48,527 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 11:38:48,528 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 11:38:48,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-22 11:38:48,529 INFO L87 Difference]: Start difference. First operand 3674 states and 5614 transitions. Second operand has 5 states, 5 states have (on average 18.2) internal successors, (91), 5 states have internal predecessors, (91), 1 states have call successors, (51), 1 states have call predecessors, (51), 1 states have return successors, (51), 1 states have call predecessors, (51), 1 states have call successors, (51) [2024-11-22 11:38:49,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 11:38:49,012 INFO L93 Difference]: Finished difference Result 8961 states and 13513 transitions. [2024-11-22 11:38:49,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 11:38:49,013 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 5 states have internal predecessors, (91), 1 states have call successors, (51), 1 states have call predecessors, (51), 1 states have return successors, (51), 1 states have call predecessors, (51), 1 states have call successors, (51) Word has length 343 [2024-11-22 11:38:49,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 11:38:49,035 INFO L225 Difference]: With dead ends: 8961 [2024-11-22 11:38:49,035 INFO L226 Difference]: Without dead ends: 5406 [2024-11-22 11:38:49,045 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-22 11:38:49,045 INFO L432 NwaCegarLoop]: 400 mSDtfsCounter, 362 mSDsluCounter, 975 mSDsCounter, 0 mSdLazyCounter, 182 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 362 SdHoareTripleChecker+Valid, 1375 SdHoareTripleChecker+Invalid, 183 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 182 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-22 11:38:49,046 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [362 Valid, 1375 Invalid, 183 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 182 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-22 11:38:49,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5406 states. [2024-11-22 11:38:49,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5406 to 3674. [2024-11-22 11:38:49,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3674 states, 2812 states have (on average 1.4203413940256044) internal successors, (3994), 2840 states have internal predecessors, (3994), 811 states have call successors, (811), 50 states have call predecessors, (811), 50 states have return successors, (811), 783 states have call predecessors, (811), 811 states have call successors, (811) [2024-11-22 11:38:49,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3674 states to 3674 states and 5616 transitions. [2024-11-22 11:38:49,271 INFO L78 Accepts]: Start accepts. Automaton has 3674 states and 5616 transitions. Word has length 343 [2024-11-22 11:38:49,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 11:38:49,272 INFO L471 AbstractCegarLoop]: Abstraction has 3674 states and 5616 transitions. [2024-11-22 11:38:49,272 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 5 states have internal predecessors, (91), 1 states have call successors, (51), 1 states have call predecessors, (51), 1 states have return successors, (51), 1 states have call predecessors, (51), 1 states have call successors, (51) [2024-11-22 11:38:49,273 INFO L276 IsEmpty]: Start isEmpty. Operand 3674 states and 5616 transitions. [2024-11-22 11:38:49,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 344 [2024-11-22 11:38:49,276 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 11:38:49,276 INFO L215 NwaCegarLoop]: trace histogram [51, 51, 51, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:38:49,276 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-22 11:38:49,276 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 11:38:49,276 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 11:38:49,276 INFO L85 PathProgramCache]: Analyzing trace with hash -1816961475, now seen corresponding path program 1 times [2024-11-22 11:38:49,277 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 11:38:49,277 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1761249237] [2024-11-22 11:38:49,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 11:38:49,277 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 11:38:49,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 11:39:06,764 INFO L134 CoverageAnalysis]: Checked inductivity of 5100 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5100 trivial. 0 not checked. [2024-11-22 11:39:06,765 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 11:39:06,765 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1761249237] [2024-11-22 11:39:06,765 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1761249237] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 11:39:06,765 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 11:39:06,765 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 11:39:06,765 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1558922531] [2024-11-22 11:39:06,765 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 11:39:06,765 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 11:39:06,765 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 11:39:06,768 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 11:39:06,768 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-22 11:39:06,768 INFO L87 Difference]: Start difference. First operand 3674 states and 5616 transitions. Second operand has 5 states, 5 states have (on average 18.2) internal successors, (91), 5 states have internal predecessors, (91), 1 states have call successors, (51), 1 states have call predecessors, (51), 1 states have return successors, (51), 1 states have call predecessors, (51), 1 states have call successors, (51) [2024-11-22 11:39:07,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 11:39:07,849 INFO L93 Difference]: Finished difference Result 8761 states and 13451 transitions. [2024-11-22 11:39:07,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 11:39:07,850 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 5 states have internal predecessors, (91), 1 states have call successors, (51), 1 states have call predecessors, (51), 1 states have return successors, (51), 1 states have call predecessors, (51), 1 states have call successors, (51) Word has length 343 [2024-11-22 11:39:07,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 11:39:07,872 INFO L225 Difference]: With dead ends: 8761 [2024-11-22 11:39:07,873 INFO L226 Difference]: Without dead ends: 5206 [2024-11-22 11:39:07,883 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-22 11:39:07,883 INFO L432 NwaCegarLoop]: 600 mSDtfsCounter, 384 mSDsluCounter, 821 mSDsCounter, 0 mSdLazyCounter, 479 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 384 SdHoareTripleChecker+Valid, 1421 SdHoareTripleChecker+Invalid, 479 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 479 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-22 11:39:07,883 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [384 Valid, 1421 Invalid, 479 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 479 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-22 11:39:07,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5206 states. [2024-11-22 11:39:08,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5206 to 3813. [2024-11-22 11:39:08,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3813 states, 2951 states have (on average 1.423246357167062) internal successors, (4200), 2979 states have internal predecessors, (4200), 811 states have call successors, (811), 50 states have call predecessors, (811), 50 states have return successors, (811), 783 states have call predecessors, (811), 811 states have call successors, (811) [2024-11-22 11:39:08,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3813 states to 3813 states and 5822 transitions. [2024-11-22 11:39:08,121 INFO L78 Accepts]: Start accepts. Automaton has 3813 states and 5822 transitions. Word has length 343 [2024-11-22 11:39:08,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 11:39:08,122 INFO L471 AbstractCegarLoop]: Abstraction has 3813 states and 5822 transitions. [2024-11-22 11:39:08,122 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 5 states have internal predecessors, (91), 1 states have call successors, (51), 1 states have call predecessors, (51), 1 states have return successors, (51), 1 states have call predecessors, (51), 1 states have call successors, (51) [2024-11-22 11:39:08,122 INFO L276 IsEmpty]: Start isEmpty. Operand 3813 states and 5822 transitions. [2024-11-22 11:39:08,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 344 [2024-11-22 11:39:08,125 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 11:39:08,126 INFO L215 NwaCegarLoop]: trace histogram [51, 51, 51, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:39:08,126 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-22 11:39:08,126 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 11:39:08,126 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 11:39:08,126 INFO L85 PathProgramCache]: Analyzing trace with hash 177183231, now seen corresponding path program 1 times [2024-11-22 11:39:08,126 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 11:39:08,126 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [459955570] [2024-11-22 11:39:08,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 11:39:08,127 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 11:39:08,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 11:39:08,651 INFO L134 CoverageAnalysis]: Checked inductivity of 5100 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5100 trivial. 0 not checked. [2024-11-22 11:39:08,652 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 11:39:08,652 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [459955570] [2024-11-22 11:39:08,652 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [459955570] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 11:39:08,652 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 11:39:08,652 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 11:39:08,653 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [417927499] [2024-11-22 11:39:08,653 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 11:39:08,654 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 11:39:08,654 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 11:39:08,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 11:39:08,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-22 11:39:08,655 INFO L87 Difference]: Start difference. First operand 3813 states and 5822 transitions. Second operand has 5 states, 5 states have (on average 18.2) internal successors, (91), 5 states have internal predecessors, (91), 1 states have call successors, (51), 1 states have call predecessors, (51), 1 states have return successors, (51), 1 states have call predecessors, (51), 1 states have call successors, (51) [2024-11-22 11:39:09,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 11:39:09,791 INFO L93 Difference]: Finished difference Result 18066 states and 27490 transitions. [2024-11-22 11:39:09,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 11:39:09,792 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 5 states have internal predecessors, (91), 1 states have call successors, (51), 1 states have call predecessors, (51), 1 states have return successors, (51), 1 states have call predecessors, (51), 1 states have call successors, (51) Word has length 343 [2024-11-22 11:39:09,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 11:39:09,832 INFO L225 Difference]: With dead ends: 18066 [2024-11-22 11:39:09,832 INFO L226 Difference]: Without dead ends: 14372 [2024-11-22 11:39:09,844 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-11-22 11:39:09,845 INFO L432 NwaCegarLoop]: 582 mSDtfsCounter, 650 mSDsluCounter, 818 mSDsCounter, 0 mSdLazyCounter, 455 mSolverCounterSat, 207 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 650 SdHoareTripleChecker+Valid, 1400 SdHoareTripleChecker+Invalid, 662 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 207 IncrementalHoareTripleChecker+Valid, 455 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-22 11:39:09,845 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [650 Valid, 1400 Invalid, 662 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [207 Valid, 455 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-22 11:39:09,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14372 states. [2024-11-22 11:39:10,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14372 to 9029. [2024-11-22 11:39:10,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9029 states, 7359 states have (on average 1.4423155320016308) internal successors, (10614), 7415 states have internal predecessors, (10614), 1571 states have call successors, (1571), 98 states have call predecessors, (1571), 98 states have return successors, (1571), 1515 states have call predecessors, (1571), 1571 states have call successors, (1571) [2024-11-22 11:39:10,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9029 states to 9029 states and 13756 transitions. [2024-11-22 11:39:10,431 INFO L78 Accepts]: Start accepts. Automaton has 9029 states and 13756 transitions. Word has length 343 [2024-11-22 11:39:10,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 11:39:10,432 INFO L471 AbstractCegarLoop]: Abstraction has 9029 states and 13756 transitions. [2024-11-22 11:39:10,432 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 5 states have internal predecessors, (91), 1 states have call successors, (51), 1 states have call predecessors, (51), 1 states have return successors, (51), 1 states have call predecessors, (51), 1 states have call successors, (51) [2024-11-22 11:39:10,432 INFO L276 IsEmpty]: Start isEmpty. Operand 9029 states and 13756 transitions. [2024-11-22 11:39:10,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 344 [2024-11-22 11:39:10,439 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 11:39:10,439 INFO L215 NwaCegarLoop]: trace histogram [51, 51, 51, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:39:10,439 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-22 11:39:10,440 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 11:39:10,440 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 11:39:10,440 INFO L85 PathProgramCache]: Analyzing trace with hash 451942845, now seen corresponding path program 1 times [2024-11-22 11:39:10,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 11:39:10,440 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1629749445] [2024-11-22 11:39:10,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 11:39:10,440 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 11:39:10,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 11:39:17,872 INFO L134 CoverageAnalysis]: Checked inductivity of 5100 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5100 trivial. 0 not checked. [2024-11-22 11:39:17,872 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 11:39:17,872 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1629749445] [2024-11-22 11:39:17,872 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1629749445] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 11:39:17,872 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 11:39:17,872 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-22 11:39:17,872 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [441470989] [2024-11-22 11:39:17,872 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 11:39:17,873 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-22 11:39:17,873 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 11:39:17,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-22 11:39:17,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-22 11:39:17,873 INFO L87 Difference]: Start difference. First operand 9029 states and 13756 transitions. Second operand has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 2 states have call successors, (51), 1 states have call predecessors, (51), 1 states have return successors, (51), 2 states have call predecessors, (51), 2 states have call successors, (51) [2024-11-22 11:39:27,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 11:39:27,181 INFO L93 Difference]: Finished difference Result 72091 states and 108879 transitions. [2024-11-22 11:39:27,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-22 11:39:27,182 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 2 states have call successors, (51), 1 states have call predecessors, (51), 1 states have return successors, (51), 2 states have call predecessors, (51), 2 states have call successors, (51) Word has length 343 [2024-11-22 11:39:27,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 11:39:27,325 INFO L225 Difference]: With dead ends: 72091 [2024-11-22 11:39:27,325 INFO L226 Difference]: Without dead ends: 63181 [2024-11-22 11:39:27,359 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=152, Invalid=400, Unknown=0, NotChecked=0, Total=552 [2024-11-22 11:39:27,360 INFO L432 NwaCegarLoop]: 1138 mSDtfsCounter, 2084 mSDsluCounter, 4197 mSDsCounter, 0 mSdLazyCounter, 1758 mSolverCounterSat, 534 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2084 SdHoareTripleChecker+Valid, 5335 SdHoareTripleChecker+Invalid, 2292 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 534 IncrementalHoareTripleChecker+Valid, 1758 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2024-11-22 11:39:27,360 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2084 Valid, 5335 Invalid, 2292 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [534 Valid, 1758 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2024-11-22 11:39:27,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63181 states.