./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-250_file-97.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_fillercode_fillercodesize_ps-cn-250_file-97.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 02165d2842f12d5b69765c0782f17776c7bdb8b210882abfa812daaf9c359651 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-803cd42-m [2024-11-22 07:29:19,106 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-22 07:29:19,191 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-22 07:29:19,194 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-22 07:29:19,195 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-22 07:29:19,217 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-22 07:29:19,217 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-22 07:29:19,218 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-22 07:29:19,218 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-22 07:29:19,218 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-22 07:29:19,219 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-22 07:29:19,220 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-22 07:29:19,222 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-22 07:29:19,225 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-22 07:29:19,226 INFO L153 SettingsManager]: * Use SBE=true [2024-11-22 07:29:19,226 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-22 07:29:19,226 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-22 07:29:19,226 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-22 07:29:19,226 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-22 07:29:19,227 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-22 07:29:19,227 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-22 07:29:19,227 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-22 07:29:19,228 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-22 07:29:19,229 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-22 07:29:19,229 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-22 07:29:19,229 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-22 07:29:19,230 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-22 07:29:19,230 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-22 07:29:19,230 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-22 07:29:19,230 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-22 07:29:19,231 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-22 07:29:19,231 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-22 07:29:19,231 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 07:29:19,232 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-22 07:29:19,232 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-22 07:29:19,232 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-22 07:29:19,233 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-22 07:29:19,233 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-22 07:29:19,233 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-22 07:29:19,234 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-22 07:29:19,234 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-22 07:29:19,234 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-22 07:29:19,234 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 02165d2842f12d5b69765c0782f17776c7bdb8b210882abfa812daaf9c359651 [2024-11-22 07:29:19,504 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-22 07:29:19,530 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-22 07:29:19,533 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-22 07:29:19,534 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-22 07:29:19,535 INFO L274 PluginConnector]: CDTParser initialized [2024-11-22 07:29:19,536 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-250_file-97.i [2024-11-22 07:29:21,037 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-22 07:29:21,285 INFO L384 CDTParser]: Found 1 translation units. [2024-11-22 07:29:21,286 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-250_file-97.i [2024-11-22 07:29:21,297 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d3f23d432/a39645d6378e43649b702d3c69256fa4/FLAGea08682d6 [2024-11-22 07:29:21,617 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d3f23d432/a39645d6378e43649b702d3c69256fa4 [2024-11-22 07:29:21,619 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-22 07:29:21,620 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-22 07:29:21,621 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-22 07:29:21,621 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-22 07:29:21,627 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-22 07:29:21,628 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 07:29:21" (1/1) ... [2024-11-22 07:29:21,629 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5327953a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 07:29:21, skipping insertion in model container [2024-11-22 07:29:21,629 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 07:29:21" (1/1) ... [2024-11-22 07:29:21,683 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-22 07:29:21,882 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_fillercode_fillercodesize_ps-cn-250_file-97.i[916,929] [2024-11-22 07:29:22,044 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 07:29:22,070 INFO L200 MainTranslator]: Completed pre-run [2024-11-22 07:29:22,084 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_fillercode_fillercodesize_ps-cn-250_file-97.i[916,929] [2024-11-22 07:29:22,169 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 07:29:22,193 INFO L204 MainTranslator]: Completed translation [2024-11-22 07:29:22,194 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 07:29:22 WrapperNode [2024-11-22 07:29:22,194 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-22 07:29:22,195 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-22 07:29:22,195 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-22 07:29:22,196 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-22 07:29:22,202 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 07:29:22" (1/1) ... [2024-11-22 07:29:22,224 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 07:29:22" (1/1) ... [2024-11-22 07:29:22,308 INFO L138 Inliner]: procedures = 26, calls = 97, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 617 [2024-11-22 07:29:22,309 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-22 07:29:22,309 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-22 07:29:22,309 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-22 07:29:22,310 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-22 07:29:22,326 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 07:29:22" (1/1) ... [2024-11-22 07:29:22,326 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 07:29:22" (1/1) ... [2024-11-22 07:29:22,345 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 07:29:22" (1/1) ... [2024-11-22 07:29:22,392 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 07:29:22,393 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 07:29:22" (1/1) ... [2024-11-22 07:29:22,393 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 07:29:22" (1/1) ... [2024-11-22 07:29:22,411 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 07:29:22" (1/1) ... [2024-11-22 07:29:22,416 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 07:29:22" (1/1) ... [2024-11-22 07:29:22,422 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 07:29:22" (1/1) ... [2024-11-22 07:29:22,428 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 07:29:22" (1/1) ... [2024-11-22 07:29:22,441 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-22 07:29:22,442 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-22 07:29:22,442 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-22 07:29:22,443 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-22 07:29:22,444 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 07:29:22" (1/1) ... [2024-11-22 07:29:22,456 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 07:29:22,469 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 07:29:22,486 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 07:29:22,492 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 07:29:22,536 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-22 07:29:22,537 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-22 07:29:22,538 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-22 07:29:22,538 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-22 07:29:22,538 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-22 07:29:22,538 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-22 07:29:22,658 INFO L238 CfgBuilder]: Building ICFG [2024-11-22 07:29:22,660 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-22 07:29:23,619 INFO L? ?]: Removed 29 outVars from TransFormulas that were not future-live. [2024-11-22 07:29:23,620 INFO L287 CfgBuilder]: Performing block encoding [2024-11-22 07:29:23,645 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-22 07:29:23,647 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-22 07:29:23,648 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 07:29:23 BoogieIcfgContainer [2024-11-22 07:29:23,648 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-22 07:29:23,650 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-22 07:29:23,650 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-22 07:29:23,653 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-22 07:29:23,654 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 07:29:21" (1/3) ... [2024-11-22 07:29:23,655 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b9e0042 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 07:29:23, skipping insertion in model container [2024-11-22 07:29:23,655 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 07:29:22" (2/3) ... [2024-11-22 07:29:23,656 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b9e0042 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 07:29:23, skipping insertion in model container [2024-11-22 07:29:23,656 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 07:29:23" (3/3) ... [2024-11-22 07:29:23,657 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodesize_ps-cn-250_file-97.i [2024-11-22 07:29:23,674 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-22 07:29:23,675 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-22 07:29:23,761 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 07:29:23,770 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;@2c7f626d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 07:29:23,770 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-22 07:29:23,775 INFO L276 IsEmpty]: Start isEmpty. Operand has 257 states, 170 states have (on average 1.5235294117647058) internal successors, (259), 171 states have internal predecessors, (259), 84 states have call successors, (84), 1 states have call predecessors, (84), 1 states have return successors, (84), 84 states have call predecessors, (84), 84 states have call successors, (84) [2024-11-22 07:29:23,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 526 [2024-11-22 07:29:23,802 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 07:29:23,804 INFO L215 NwaCegarLoop]: trace histogram [84, 84, 84, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:29:23,805 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 07:29:23,814 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 07:29:23,814 INFO L85 PathProgramCache]: Analyzing trace with hash 1611808476, now seen corresponding path program 1 times [2024-11-22 07:29:23,823 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 07:29:23,824 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1357170296] [2024-11-22 07:29:23,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 07:29:23,825 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 07:29:24,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 07:29:24,450 INFO L134 CoverageAnalysis]: Checked inductivity of 13944 backedges. 0 proven. 166 refuted. 0 times theorem prover too weak. 13778 trivial. 0 not checked. [2024-11-22 07:29:24,451 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 07:29:24,451 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1357170296] [2024-11-22 07:29:24,452 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1357170296] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 07:29:24,452 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [77306266] [2024-11-22 07:29:24,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 07:29:24,453 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 07:29:24,453 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 07:29:24,456 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 07:29:24,459 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 07:29:24,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 07:29:24,964 INFO L255 TraceCheckSpWp]: Trace formula consists of 1161 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-22 07:29:24,989 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 07:29:25,075 INFO L134 CoverageAnalysis]: Checked inductivity of 13944 backedges. 166 proven. 0 refuted. 0 times theorem prover too weak. 13778 trivial. 0 not checked. [2024-11-22 07:29:25,076 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 07:29:25,076 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [77306266] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 07:29:25,076 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 07:29:25,077 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-22 07:29:25,079 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [839605852] [2024-11-22 07:29:25,081 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 07:29:25,088 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-22 07:29:25,088 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 07:29:25,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-22 07:29:25,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-22 07:29:25,119 INFO L87 Difference]: Start difference. First operand has 257 states, 170 states have (on average 1.5235294117647058) internal successors, (259), 171 states have internal predecessors, (259), 84 states have call successors, (84), 1 states have call predecessors, (84), 1 states have return successors, (84), 84 states have call predecessors, (84), 84 states have call successors, (84) Second operand has 2 states, 2 states have (on average 55.0) internal successors, (110), 2 states have internal predecessors, (110), 2 states have call successors, (84), 2 states have call predecessors, (84), 1 states have return successors, (84), 1 states have call predecessors, (84), 2 states have call successors, (84) [2024-11-22 07:29:25,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 07:29:25,196 INFO L93 Difference]: Finished difference Result 507 states and 932 transitions. [2024-11-22 07:29:25,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-22 07:29:25,198 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 55.0) internal successors, (110), 2 states have internal predecessors, (110), 2 states have call successors, (84), 2 states have call predecessors, (84), 1 states have return successors, (84), 1 states have call predecessors, (84), 2 states have call successors, (84) Word has length 525 [2024-11-22 07:29:25,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 07:29:25,210 INFO L225 Difference]: With dead ends: 507 [2024-11-22 07:29:25,210 INFO L226 Difference]: Without dead ends: 253 [2024-11-22 07:29:25,220 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 526 GetRequests, 526 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 07:29:25,224 INFO L432 NwaCegarLoop]: 418 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, 418 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 07:29:25,225 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 418 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 07:29:25,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 253 states. [2024-11-22 07:29:25,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 253 to 253. [2024-11-22 07:29:25,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 253 states, 167 states have (on average 1.4970059880239521) internal successors, (250), 167 states have internal predecessors, (250), 84 states have call successors, (84), 1 states have call predecessors, (84), 1 states have return successors, (84), 84 states have call predecessors, (84), 84 states have call successors, (84) [2024-11-22 07:29:25,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 253 states to 253 states and 418 transitions. [2024-11-22 07:29:25,310 INFO L78 Accepts]: Start accepts. Automaton has 253 states and 418 transitions. Word has length 525 [2024-11-22 07:29:25,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 07:29:25,312 INFO L471 AbstractCegarLoop]: Abstraction has 253 states and 418 transitions. [2024-11-22 07:29:25,313 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 55.0) internal successors, (110), 2 states have internal predecessors, (110), 2 states have call successors, (84), 2 states have call predecessors, (84), 1 states have return successors, (84), 1 states have call predecessors, (84), 2 states have call successors, (84) [2024-11-22 07:29:25,313 INFO L276 IsEmpty]: Start isEmpty. Operand 253 states and 418 transitions. [2024-11-22 07:29:25,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 526 [2024-11-22 07:29:25,325 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 07:29:25,326 INFO L215 NwaCegarLoop]: trace histogram [84, 84, 84, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:29:25,337 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-22 07:29:25,527 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 07:29:25,527 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 07:29:25,528 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 07:29:25,528 INFO L85 PathProgramCache]: Analyzing trace with hash -1402856482, now seen corresponding path program 1 times [2024-11-22 07:29:25,528 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 07:29:25,529 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [812424367] [2024-11-22 07:29:25,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 07:29:25,529 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 07:29:25,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 07:29:26,004 INFO L134 CoverageAnalysis]: Checked inductivity of 13944 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13944 trivial. 0 not checked. [2024-11-22 07:29:26,005 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 07:29:26,005 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [812424367] [2024-11-22 07:29:26,005 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [812424367] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 07:29:26,006 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 07:29:26,006 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 07:29:26,006 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1653773243] [2024-11-22 07:29:26,007 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 07:29:26,010 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 07:29:26,010 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 07:29:26,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 07:29:26,011 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 07:29:26,012 INFO L87 Difference]: Start difference. First operand 253 states and 418 transitions. Second operand has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 1 states have call successors, (84), 1 states have call predecessors, (84), 1 states have return successors, (84), 1 states have call predecessors, (84), 1 states have call successors, (84) [2024-11-22 07:29:26,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 07:29:26,085 INFO L93 Difference]: Finished difference Result 640 states and 1060 transitions. [2024-11-22 07:29:26,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 07:29:26,086 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 1 states have call successors, (84), 1 states have call predecessors, (84), 1 states have return successors, (84), 1 states have call predecessors, (84), 1 states have call successors, (84) Word has length 525 [2024-11-22 07:29:26,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 07:29:26,095 INFO L225 Difference]: With dead ends: 640 [2024-11-22 07:29:26,098 INFO L226 Difference]: Without dead ends: 390 [2024-11-22 07:29:26,100 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 07:29:26,101 INFO L432 NwaCegarLoop]: 640 mSDtfsCounter, 235 mSDsluCounter, 400 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 235 SdHoareTripleChecker+Valid, 1040 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 07:29:26,101 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [235 Valid, 1040 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 07:29:26,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 390 states. [2024-11-22 07:29:26,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 390 to 387. [2024-11-22 07:29:26,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 387 states, 284 states have (on average 1.556338028169014) internal successors, (442), 285 states have internal predecessors, (442), 100 states have call successors, (100), 2 states have call predecessors, (100), 2 states have return successors, (100), 99 states have call predecessors, (100), 100 states have call successors, (100) [2024-11-22 07:29:26,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 387 states to 387 states and 642 transitions. [2024-11-22 07:29:26,174 INFO L78 Accepts]: Start accepts. Automaton has 387 states and 642 transitions. Word has length 525 [2024-11-22 07:29:26,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 07:29:26,176 INFO L471 AbstractCegarLoop]: Abstraction has 387 states and 642 transitions. [2024-11-22 07:29:26,176 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 1 states have call successors, (84), 1 states have call predecessors, (84), 1 states have return successors, (84), 1 states have call predecessors, (84), 1 states have call successors, (84) [2024-11-22 07:29:26,176 INFO L276 IsEmpty]: Start isEmpty. Operand 387 states and 642 transitions. [2024-11-22 07:29:26,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 527 [2024-11-22 07:29:26,180 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 07:29:26,181 INFO L215 NwaCegarLoop]: trace histogram [84, 84, 84, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:29:26,181 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-22 07:29:26,181 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 07:29:26,182 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 07:29:26,182 INFO L85 PathProgramCache]: Analyzing trace with hash 138841334, now seen corresponding path program 1 times [2024-11-22 07:29:26,182 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 07:29:26,183 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1581068063] [2024-11-22 07:29:26,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 07:29:26,183 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 07:29:26,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 07:29:26,522 INFO L134 CoverageAnalysis]: Checked inductivity of 13944 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13944 trivial. 0 not checked. [2024-11-22 07:29:26,522 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 07:29:26,526 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1581068063] [2024-11-22 07:29:26,526 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1581068063] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 07:29:26,526 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 07:29:26,526 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 07:29:26,527 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1235576154] [2024-11-22 07:29:26,527 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 07:29:26,529 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 07:29:26,529 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 07:29:26,530 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 07:29:26,530 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 07:29:26,530 INFO L87 Difference]: Start difference. First operand 387 states and 642 transitions. Second operand has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 1 states have call successors, (84), 1 states have call predecessors, (84), 1 states have return successors, (84), 1 states have call predecessors, (84), 1 states have call successors, (84) [2024-11-22 07:29:26,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 07:29:26,618 INFO L93 Difference]: Finished difference Result 1052 states and 1745 transitions. [2024-11-22 07:29:26,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 07:29:26,623 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 1 states have call successors, (84), 1 states have call predecessors, (84), 1 states have return successors, (84), 1 states have call predecessors, (84), 1 states have call successors, (84) Word has length 526 [2024-11-22 07:29:26,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 07:29:26,634 INFO L225 Difference]: With dead ends: 1052 [2024-11-22 07:29:26,635 INFO L226 Difference]: Without dead ends: 668 [2024-11-22 07:29:26,636 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 07:29:26,638 INFO L432 NwaCegarLoop]: 526 mSDtfsCounter, 257 mSDsluCounter, 404 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 257 SdHoareTripleChecker+Valid, 930 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 07:29:26,640 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [257 Valid, 930 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 07:29:26,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 668 states. [2024-11-22 07:29:26,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 668 to 665. [2024-11-22 07:29:26,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 665 states, 502 states have (on average 1.5537848605577689) internal successors, (780), 505 states have internal predecessors, (780), 158 states have call successors, (158), 4 states have call predecessors, (158), 4 states have return successors, (158), 155 states have call predecessors, (158), 158 states have call successors, (158) [2024-11-22 07:29:26,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 665 states to 665 states and 1096 transitions. [2024-11-22 07:29:26,713 INFO L78 Accepts]: Start accepts. Automaton has 665 states and 1096 transitions. Word has length 526 [2024-11-22 07:29:26,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 07:29:26,717 INFO L471 AbstractCegarLoop]: Abstraction has 665 states and 1096 transitions. [2024-11-22 07:29:26,718 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 1 states have call successors, (84), 1 states have call predecessors, (84), 1 states have return successors, (84), 1 states have call predecessors, (84), 1 states have call successors, (84) [2024-11-22 07:29:26,718 INFO L276 IsEmpty]: Start isEmpty. Operand 665 states and 1096 transitions. [2024-11-22 07:29:26,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 527 [2024-11-22 07:29:26,722 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 07:29:26,722 INFO L215 NwaCegarLoop]: trace histogram [84, 84, 84, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:29:26,722 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-22 07:29:26,722 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 07:29:26,723 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 07:29:26,723 INFO L85 PathProgramCache]: Analyzing trace with hash 1510648632, now seen corresponding path program 1 times [2024-11-22 07:29:26,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 07:29:26,723 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2067248422] [2024-11-22 07:29:26,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 07:29:26,724 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 07:29:26,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 07:29:27,024 INFO L134 CoverageAnalysis]: Checked inductivity of 13944 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13944 trivial. 0 not checked. [2024-11-22 07:29:27,027 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 07:29:27,027 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2067248422] [2024-11-22 07:29:27,027 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2067248422] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 07:29:27,028 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 07:29:27,028 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 07:29:27,028 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2028835014] [2024-11-22 07:29:27,028 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 07:29:27,029 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 07:29:27,029 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 07:29:27,029 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 07:29:27,030 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 07:29:27,030 INFO L87 Difference]: Start difference. First operand 665 states and 1096 transitions. Second operand has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 1 states have call successors, (84), 1 states have call predecessors, (84), 1 states have return successors, (84), 1 states have call predecessors, (84), 1 states have call successors, (84) [2024-11-22 07:29:27,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 07:29:27,142 INFO L93 Difference]: Finished difference Result 1933 states and 3190 transitions. [2024-11-22 07:29:27,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 07:29:27,143 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 1 states have call successors, (84), 1 states have call predecessors, (84), 1 states have return successors, (84), 1 states have call predecessors, (84), 1 states have call successors, (84) Word has length 526 [2024-11-22 07:29:27,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 07:29:27,152 INFO L225 Difference]: With dead ends: 1933 [2024-11-22 07:29:27,152 INFO L226 Difference]: Without dead ends: 1271 [2024-11-22 07:29:27,154 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 07:29:27,157 INFO L432 NwaCegarLoop]: 795 mSDtfsCounter, 403 mSDsluCounter, 380 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 403 SdHoareTripleChecker+Valid, 1175 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 07:29:27,159 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [403 Valid, 1175 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 07:29:27,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1271 states. [2024-11-22 07:29:27,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1271 to 749. [2024-11-22 07:29:27,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 749 states, 586 states have (on average 1.52901023890785) internal successors, (896), 589 states have internal predecessors, (896), 158 states have call successors, (158), 4 states have call predecessors, (158), 4 states have return successors, (158), 155 states have call predecessors, (158), 158 states have call successors, (158) [2024-11-22 07:29:27,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 749 states to 749 states and 1212 transitions. [2024-11-22 07:29:27,236 INFO L78 Accepts]: Start accepts. Automaton has 749 states and 1212 transitions. Word has length 526 [2024-11-22 07:29:27,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 07:29:27,237 INFO L471 AbstractCegarLoop]: Abstraction has 749 states and 1212 transitions. [2024-11-22 07:29:27,237 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 1 states have call successors, (84), 1 states have call predecessors, (84), 1 states have return successors, (84), 1 states have call predecessors, (84), 1 states have call successors, (84) [2024-11-22 07:29:27,238 INFO L276 IsEmpty]: Start isEmpty. Operand 749 states and 1212 transitions. [2024-11-22 07:29:27,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 527 [2024-11-22 07:29:27,242 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 07:29:27,243 INFO L215 NwaCegarLoop]: trace histogram [84, 84, 84, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:29:27,243 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-22 07:29:27,243 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 07:29:27,245 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 07:29:27,245 INFO L85 PathProgramCache]: Analyzing trace with hash 230784954, now seen corresponding path program 1 times [2024-11-22 07:29:27,245 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 07:29:27,245 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [330406963] [2024-11-22 07:29:27,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 07:29:27,246 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 07:29:27,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 07:29:27,972 INFO L134 CoverageAnalysis]: Checked inductivity of 13944 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13944 trivial. 0 not checked. [2024-11-22 07:29:27,975 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 07:29:27,975 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [330406963] [2024-11-22 07:29:27,975 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [330406963] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 07:29:27,975 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 07:29:27,976 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 07:29:27,976 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [857158512] [2024-11-22 07:29:27,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 07:29:27,977 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 07:29:27,977 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 07:29:27,978 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 07:29:27,978 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-22 07:29:27,978 INFO L87 Difference]: Start difference. First operand 749 states and 1212 transitions. Second operand has 4 states, 4 states have (on average 27.25) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (84), 1 states have call predecessors, (84), 1 states have return successors, (84), 1 states have call predecessors, (84), 1 states have call successors, (84) [2024-11-22 07:29:28,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 07:29:28,625 INFO L93 Difference]: Finished difference Result 2584 states and 4188 transitions. [2024-11-22 07:29:28,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 07:29:28,626 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.25) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (84), 1 states have call predecessors, (84), 1 states have return successors, (84), 1 states have call predecessors, (84), 1 states have call successors, (84) Word has length 526 [2024-11-22 07:29:28,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 07:29:28,638 INFO L225 Difference]: With dead ends: 2584 [2024-11-22 07:29:28,638 INFO L226 Difference]: Without dead ends: 1838 [2024-11-22 07:29:28,641 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 07:29:28,642 INFO L432 NwaCegarLoop]: 431 mSDtfsCounter, 901 mSDsluCounter, 585 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 174 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 901 SdHoareTripleChecker+Valid, 1016 SdHoareTripleChecker+Invalid, 291 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 174 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-22 07:29:28,642 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [901 Valid, 1016 Invalid, 291 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [174 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-22 07:29:28,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1838 states. [2024-11-22 07:29:28,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1838 to 1607. [2024-11-22 07:29:28,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1607 states, 1282 states have (on average 1.5553822152886116) internal successors, (1994), 1288 states have internal predecessors, (1994), 316 states have call successors, (316), 8 states have call predecessors, (316), 8 states have return successors, (316), 310 states have call predecessors, (316), 316 states have call successors, (316) [2024-11-22 07:29:28,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1607 states to 1607 states and 2626 transitions. [2024-11-22 07:29:28,832 INFO L78 Accepts]: Start accepts. Automaton has 1607 states and 2626 transitions. Word has length 526 [2024-11-22 07:29:28,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 07:29:28,833 INFO L471 AbstractCegarLoop]: Abstraction has 1607 states and 2626 transitions. [2024-11-22 07:29:28,833 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.25) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (84), 1 states have call predecessors, (84), 1 states have return successors, (84), 1 states have call predecessors, (84), 1 states have call successors, (84) [2024-11-22 07:29:28,834 INFO L276 IsEmpty]: Start isEmpty. Operand 1607 states and 2626 transitions. [2024-11-22 07:29:28,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 527 [2024-11-22 07:29:28,841 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 07:29:28,842 INFO L215 NwaCegarLoop]: trace histogram [84, 84, 84, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:29:28,842 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-22 07:29:28,842 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 07:29:28,844 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 07:29:28,844 INFO L85 PathProgramCache]: Analyzing trace with hash 625151740, now seen corresponding path program 1 times [2024-11-22 07:29:28,844 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 07:29:28,845 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1350219180] [2024-11-22 07:29:28,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 07:29:28,845 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 07:29:28,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 07:29:29,286 INFO L134 CoverageAnalysis]: Checked inductivity of 13944 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13944 trivial. 0 not checked. [2024-11-22 07:29:29,287 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 07:29:29,287 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1350219180] [2024-11-22 07:29:29,287 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1350219180] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 07:29:29,287 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 07:29:29,288 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 07:29:29,288 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1571973057] [2024-11-22 07:29:29,288 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 07:29:29,289 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 07:29:29,289 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 07:29:29,290 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 07:29:29,290 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 07:29:29,290 INFO L87 Difference]: Start difference. First operand 1607 states and 2626 transitions. Second operand has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 1 states have call successors, (84), 1 states have call predecessors, (84), 1 states have return successors, (84), 1 states have call predecessors, (84), 1 states have call successors, (84) [2024-11-22 07:29:29,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 07:29:29,443 INFO L93 Difference]: Finished difference Result 4815 states and 7872 transitions. [2024-11-22 07:29:29,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 07:29:29,444 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 1 states have call successors, (84), 1 states have call predecessors, (84), 1 states have return successors, (84), 1 states have call predecessors, (84), 1 states have call successors, (84) Word has length 526 [2024-11-22 07:29:29,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 07:29:29,465 INFO L225 Difference]: With dead ends: 4815 [2024-11-22 07:29:29,465 INFO L226 Difference]: Without dead ends: 3211 [2024-11-22 07:29:29,474 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 07:29:29,475 INFO L432 NwaCegarLoop]: 417 mSDtfsCounter, 246 mSDsluCounter, 411 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 246 SdHoareTripleChecker+Valid, 828 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 07:29:29,476 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [246 Valid, 828 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 07:29:29,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3211 states. [2024-11-22 07:29:29,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3211 to 3199. [2024-11-22 07:29:29,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3199 states, 2550 states have (on average 1.5505882352941176) internal successors, (3954), 2562 states have internal predecessors, (3954), 632 states have call successors, (632), 16 states have call predecessors, (632), 16 states have return successors, (632), 620 states have call predecessors, (632), 632 states have call successors, (632) [2024-11-22 07:29:29,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3199 states to 3199 states and 5218 transitions. [2024-11-22 07:29:29,754 INFO L78 Accepts]: Start accepts. Automaton has 3199 states and 5218 transitions. Word has length 526 [2024-11-22 07:29:29,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 07:29:29,755 INFO L471 AbstractCegarLoop]: Abstraction has 3199 states and 5218 transitions. [2024-11-22 07:29:29,755 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 1 states have call successors, (84), 1 states have call predecessors, (84), 1 states have return successors, (84), 1 states have call predecessors, (84), 1 states have call successors, (84) [2024-11-22 07:29:29,755 INFO L276 IsEmpty]: Start isEmpty. Operand 3199 states and 5218 transitions. [2024-11-22 07:29:29,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 527 [2024-11-22 07:29:29,761 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 07:29:29,761 INFO L215 NwaCegarLoop]: trace histogram [84, 84, 84, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:29:29,762 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-22 07:29:29,763 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 07:29:29,763 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 07:29:29,763 INFO L85 PathProgramCache]: Analyzing trace with hash 202449914, now seen corresponding path program 1 times [2024-11-22 07:29:29,764 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 07:29:29,764 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1041807107] [2024-11-22 07:29:29,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 07:29:29,764 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 07:29:29,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 07:29:30,251 INFO L134 CoverageAnalysis]: Checked inductivity of 13944 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13944 trivial. 0 not checked. [2024-11-22 07:29:30,252 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 07:29:30,252 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1041807107] [2024-11-22 07:29:30,252 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1041807107] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 07:29:30,252 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 07:29:30,252 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 07:29:30,252 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [12168326] [2024-11-22 07:29:30,253 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 07:29:30,253 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 07:29:30,254 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 07:29:30,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 07:29:30,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-22 07:29:30,255 INFO L87 Difference]: Start difference. First operand 3199 states and 5218 transitions. Second operand has 5 states, 5 states have (on average 21.8) internal successors, (109), 5 states have internal predecessors, (109), 1 states have call successors, (84), 1 states have call predecessors, (84), 1 states have return successors, (84), 1 states have call predecessors, (84), 1 states have call successors, (84) [2024-11-22 07:29:31,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 07:29:31,097 INFO L93 Difference]: Finished difference Result 11601 states and 18893 transitions. [2024-11-22 07:29:31,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 07:29:31,098 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 5 states have internal predecessors, (109), 1 states have call successors, (84), 1 states have call predecessors, (84), 1 states have return successors, (84), 1 states have call predecessors, (84), 1 states have call successors, (84) Word has length 526 [2024-11-22 07:29:31,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 07:29:31,146 INFO L225 Difference]: With dead ends: 11601 [2024-11-22 07:29:31,147 INFO L226 Difference]: Without dead ends: 8405 [2024-11-22 07:29:31,158 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-22 07:29:31,159 INFO L432 NwaCegarLoop]: 650 mSDtfsCounter, 498 mSDsluCounter, 1496 mSDsCounter, 0 mSdLazyCounter, 269 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 498 SdHoareTripleChecker+Valid, 2146 SdHoareTripleChecker+Invalid, 275 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 269 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-22 07:29:31,160 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [498 Valid, 2146 Invalid, 275 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 269 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-22 07:29:31,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8405 states. [2024-11-22 07:29:31,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8405 to 6077. [2024-11-22 07:29:31,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6077 states, 5020 states have (on average 1.5701195219123505) internal successors, (7882), 5048 states have internal predecessors, (7882), 1024 states have call successors, (1024), 32 states have call predecessors, (1024), 32 states have return successors, (1024), 996 states have call predecessors, (1024), 1024 states have call successors, (1024) [2024-11-22 07:29:31,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6077 states to 6077 states and 9930 transitions. [2024-11-22 07:29:31,703 INFO L78 Accepts]: Start accepts. Automaton has 6077 states and 9930 transitions. Word has length 526 [2024-11-22 07:29:31,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 07:29:31,704 INFO L471 AbstractCegarLoop]: Abstraction has 6077 states and 9930 transitions. [2024-11-22 07:29:31,704 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 5 states have internal predecessors, (109), 1 states have call successors, (84), 1 states have call predecessors, (84), 1 states have return successors, (84), 1 states have call predecessors, (84), 1 states have call successors, (84) [2024-11-22 07:29:31,704 INFO L276 IsEmpty]: Start isEmpty. Operand 6077 states and 9930 transitions. [2024-11-22 07:29:31,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 527 [2024-11-22 07:29:31,712 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 07:29:31,713 INFO L215 NwaCegarLoop]: trace histogram [84, 84, 84, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:29:31,713 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-22 07:29:31,713 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 07:29:31,714 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 07:29:31,714 INFO L85 PathProgramCache]: Analyzing trace with hash -278630344, now seen corresponding path program 1 times [2024-11-22 07:29:31,715 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 07:29:31,715 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1230995172] [2024-11-22 07:29:31,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 07:29:31,715 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 07:29:31,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 07:29:32,329 INFO L134 CoverageAnalysis]: Checked inductivity of 13944 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13944 trivial. 0 not checked. [2024-11-22 07:29:32,330 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 07:29:32,330 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1230995172] [2024-11-22 07:29:32,330 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1230995172] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 07:29:32,330 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 07:29:32,331 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 07:29:32,331 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1142738572] [2024-11-22 07:29:32,331 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 07:29:32,332 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 07:29:32,332 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 07:29:32,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 07:29:32,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 07:29:32,333 INFO L87 Difference]: Start difference. First operand 6077 states and 9930 transitions. Second operand has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 1 states have call successors, (84), 1 states have call predecessors, (84), 1 states have return successors, (84), 1 states have call predecessors, (84), 1 states have call successors, (84) [2024-11-22 07:29:32,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 07:29:32,827 INFO L93 Difference]: Finished difference Result 18225 states and 29784 transitions. [2024-11-22 07:29:32,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 07:29:32,828 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 1 states have call successors, (84), 1 states have call predecessors, (84), 1 states have return successors, (84), 1 states have call predecessors, (84), 1 states have call successors, (84) Word has length 526 [2024-11-22 07:29:32,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 07:29:32,900 INFO L225 Difference]: With dead ends: 18225 [2024-11-22 07:29:32,901 INFO L226 Difference]: Without dead ends: 12151 [2024-11-22 07:29:32,922 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 07:29:32,923 INFO L432 NwaCegarLoop]: 417 mSDtfsCounter, 249 mSDsluCounter, 412 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 249 SdHoareTripleChecker+Valid, 829 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 07:29:32,923 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [249 Valid, 829 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 07:29:32,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12151 states. [2024-11-22 07:29:33,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12151 to 12149. [2024-11-22 07:29:33,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12149 states, 10036 states have (on average 1.566759665205261) internal successors, (15724), 10092 states have internal predecessors, (15724), 2048 states have call successors, (2048), 64 states have call predecessors, (2048), 64 states have return successors, (2048), 1992 states have call predecessors, (2048), 2048 states have call successors, (2048) [2024-11-22 07:29:33,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12149 states to 12149 states and 19820 transitions. [2024-11-22 07:29:33,910 INFO L78 Accepts]: Start accepts. Automaton has 12149 states and 19820 transitions. Word has length 526 [2024-11-22 07:29:33,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 07:29:33,912 INFO L471 AbstractCegarLoop]: Abstraction has 12149 states and 19820 transitions. [2024-11-22 07:29:33,912 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 1 states have call successors, (84), 1 states have call predecessors, (84), 1 states have return successors, (84), 1 states have call predecessors, (84), 1 states have call successors, (84) [2024-11-22 07:29:33,913 INFO L276 IsEmpty]: Start isEmpty. Operand 12149 states and 19820 transitions. [2024-11-22 07:29:33,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 527 [2024-11-22 07:29:33,926 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 07:29:33,927 INFO L215 NwaCegarLoop]: trace histogram [84, 84, 84, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:29:33,927 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-22 07:29:33,927 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 07:29:33,928 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 07:29:33,928 INFO L85 PathProgramCache]: Analyzing trace with hash -2084068678, now seen corresponding path program 1 times [2024-11-22 07:29:33,928 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 07:29:33,929 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [820148319] [2024-11-22 07:29:33,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 07:29:33,929 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 07:29:34,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 07:29:35,629 INFO L134 CoverageAnalysis]: Checked inductivity of 13944 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13944 trivial. 0 not checked. [2024-11-22 07:29:35,629 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 07:29:35,630 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [820148319] [2024-11-22 07:29:35,630 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [820148319] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 07:29:35,630 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 07:29:35,630 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-22 07:29:35,630 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2085757760] [2024-11-22 07:29:35,630 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 07:29:35,631 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-22 07:29:35,634 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 07:29:35,634 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-22 07:29:35,635 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2024-11-22 07:29:35,635 INFO L87 Difference]: Start difference. First operand 12149 states and 19820 transitions. Second operand has 11 states, 11 states have (on average 9.909090909090908) internal successors, (109), 11 states have internal predecessors, (109), 1 states have call successors, (84), 1 states have call predecessors, (84), 1 states have return successors, (84), 1 states have call predecessors, (84), 1 states have call successors, (84) [2024-11-22 07:29:44,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 07:29:44,715 INFO L93 Difference]: Finished difference Result 69337 states and 113069 transitions. [2024-11-22 07:29:44,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-11-22 07:29:44,717 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 9.909090909090908) internal successors, (109), 11 states have internal predecessors, (109), 1 states have call successors, (84), 1 states have call predecessors, (84), 1 states have return successors, (84), 1 states have call predecessors, (84), 1 states have call successors, (84) Word has length 526 [2024-11-22 07:29:44,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 07:29:44,985 INFO L225 Difference]: With dead ends: 69337 [2024-11-22 07:29:44,985 INFO L226 Difference]: Without dead ends: 57175 [2024-11-22 07:29:45,057 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 150 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=193, Invalid=509, Unknown=0, NotChecked=0, Total=702 [2024-11-22 07:29:45,059 INFO L432 NwaCegarLoop]: 692 mSDtfsCounter, 3596 mSDsluCounter, 2857 mSDsCounter, 0 mSdLazyCounter, 2553 mSolverCounterSat, 1889 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3596 SdHoareTripleChecker+Valid, 3549 SdHoareTripleChecker+Invalid, 4442 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1889 IncrementalHoareTripleChecker+Valid, 2553 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2024-11-22 07:29:45,060 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3596 Valid, 3549 Invalid, 4442 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1889 Valid, 2553 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2024-11-22 07:29:45,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57175 states. [2024-11-22 07:29:48,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57175 to 27408. [2024-11-22 07:29:48,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27408 states, 22233 states have (on average 1.564926010884721) internal successors, (34793), 22346 states have internal predecessors, (34793), 4996 states have call successors, (4996), 178 states have call predecessors, (4996), 178 states have return successors, (4996), 4883 states have call predecessors, (4996), 4996 states have call successors, (4996) [2024-11-22 07:29:49,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27408 states to 27408 states and 44785 transitions. [2024-11-22 07:29:49,175 INFO L78 Accepts]: Start accepts. Automaton has 27408 states and 44785 transitions. Word has length 526 [2024-11-22 07:29:49,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 07:29:49,176 INFO L471 AbstractCegarLoop]: Abstraction has 27408 states and 44785 transitions. [2024-11-22 07:29:49,177 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 9.909090909090908) internal successors, (109), 11 states have internal predecessors, (109), 1 states have call successors, (84), 1 states have call predecessors, (84), 1 states have return successors, (84), 1 states have call predecessors, (84), 1 states have call successors, (84) [2024-11-22 07:29:49,177 INFO L276 IsEmpty]: Start isEmpty. Operand 27408 states and 44785 transitions. [2024-11-22 07:29:49,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 527 [2024-11-22 07:29:49,200 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 07:29:49,201 INFO L215 NwaCegarLoop]: trace histogram [84, 84, 84, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:29:49,201 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-22 07:29:49,202 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 07:29:49,202 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 07:29:49,202 INFO L85 PathProgramCache]: Analyzing trace with hash 1366893116, now seen corresponding path program 1 times [2024-11-22 07:29:49,202 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 07:29:49,203 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2037912399] [2024-11-22 07:29:49,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 07:29:49,203 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 07:29:49,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 07:29:50,092 INFO L134 CoverageAnalysis]: Checked inductivity of 13944 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13944 trivial. 0 not checked. [2024-11-22 07:29:50,093 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 07:29:50,093 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2037912399] [2024-11-22 07:29:50,093 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2037912399] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 07:29:50,093 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 07:29:50,093 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 07:29:50,093 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [640429142] [2024-11-22 07:29:50,094 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 07:29:50,094 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 07:29:50,094 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 07:29:50,095 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 07:29:50,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 07:29:50,096 INFO L87 Difference]: Start difference. First operand 27408 states and 44785 transitions. Second operand has 5 states, 5 states have (on average 21.8) internal successors, (109), 5 states have internal predecessors, (109), 1 states have call successors, (84), 1 states have call predecessors, (84), 1 states have return successors, (84), 1 states have call predecessors, (84), 1 states have call successors, (84) [2024-11-22 07:29:55,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 07:29:55,361 INFO L93 Difference]: Finished difference Result 104696 states and 169583 transitions. [2024-11-22 07:29:55,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-22 07:29:55,362 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 5 states have internal predecessors, (109), 1 states have call successors, (84), 1 states have call predecessors, (84), 1 states have return successors, (84), 1 states have call predecessors, (84), 1 states have call successors, (84) Word has length 526 [2024-11-22 07:29:55,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 07:29:55,652 INFO L225 Difference]: With dead ends: 104696 [2024-11-22 07:29:55,652 INFO L226 Difference]: Without dead ends: 77414 [2024-11-22 07:29:55,738 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-22 07:29:55,739 INFO L432 NwaCegarLoop]: 536 mSDtfsCounter, 1177 mSDsluCounter, 1336 mSDsCounter, 0 mSdLazyCounter, 362 mSolverCounterSat, 403 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1177 SdHoareTripleChecker+Valid, 1872 SdHoareTripleChecker+Invalid, 765 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 403 IncrementalHoareTripleChecker+Valid, 362 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-22 07:29:55,740 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1177 Valid, 1872 Invalid, 765 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [403 Valid, 362 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-22 07:29:55,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77414 states. [2024-11-22 07:29:59,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77414 to 28752. [2024-11-22 07:29:59,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28752 states, 23577 states have (on average 1.5785299232302668) internal successors, (37217), 23690 states have internal predecessors, (37217), 4996 states have call successors, (4996), 178 states have call predecessors, (4996), 178 states have return successors, (4996), 4883 states have call predecessors, (4996), 4996 states have call successors, (4996) [2024-11-22 07:29:59,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28752 states to 28752 states and 47209 transitions. [2024-11-22 07:29:59,473 INFO L78 Accepts]: Start accepts. Automaton has 28752 states and 47209 transitions. Word has length 526 [2024-11-22 07:29:59,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 07:29:59,475 INFO L471 AbstractCegarLoop]: Abstraction has 28752 states and 47209 transitions. [2024-11-22 07:29:59,475 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 5 states have internal predecessors, (109), 1 states have call successors, (84), 1 states have call predecessors, (84), 1 states have return successors, (84), 1 states have call predecessors, (84), 1 states have call successors, (84) [2024-11-22 07:29:59,475 INFO L276 IsEmpty]: Start isEmpty. Operand 28752 states and 47209 transitions. [2024-11-22 07:29:59,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 527 [2024-11-22 07:29:59,492 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 07:29:59,493 INFO L215 NwaCegarLoop]: trace histogram [84, 84, 84, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:29:59,493 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-22 07:29:59,493 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 07:29:59,494 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 07:29:59,494 INFO L85 PathProgramCache]: Analyzing trace with hash -1660421956, now seen corresponding path program 1 times [2024-11-22 07:29:59,494 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 07:29:59,494 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [862902431] [2024-11-22 07:29:59,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 07:29:59,495 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 07:29:59,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 07:29:59,921 INFO L134 CoverageAnalysis]: Checked inductivity of 13944 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13944 trivial. 0 not checked. [2024-11-22 07:29:59,921 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 07:29:59,921 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [862902431] [2024-11-22 07:29:59,922 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [862902431] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 07:29:59,922 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 07:29:59,922 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 07:29:59,922 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1957235510] [2024-11-22 07:29:59,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 07:29:59,923 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 07:29:59,923 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 07:29:59,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 07:29:59,924 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 07:29:59,924 INFO L87 Difference]: Start difference. First operand 28752 states and 47209 transitions. Second operand has 5 states, 5 states have (on average 21.8) internal successors, (109), 5 states have internal predecessors, (109), 1 states have call successors, (84), 1 states have call predecessors, (84), 1 states have return successors, (84), 1 states have call predecessors, (84), 1 states have call successors, (84) [2024-11-22 07:30:04,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 07:30:04,517 INFO L93 Difference]: Finished difference Result 92156 states and 149725 transitions. [2024-11-22 07:30:04,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 07:30:04,518 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 5 states have internal predecessors, (109), 1 states have call successors, (84), 1 states have call predecessors, (84), 1 states have return successors, (84), 1 states have call predecessors, (84), 1 states have call successors, (84) Word has length 526 [2024-11-22 07:30:04,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 07:30:04,800 INFO L225 Difference]: With dead ends: 92156 [2024-11-22 07:30:04,800 INFO L226 Difference]: Without dead ends: 63546 [2024-11-22 07:30:04,880 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-22 07:30:04,881 INFO L432 NwaCegarLoop]: 439 mSDtfsCounter, 843 mSDsluCounter, 1044 mSDsCounter, 0 mSdLazyCounter, 337 mSolverCounterSat, 137 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 843 SdHoareTripleChecker+Valid, 1483 SdHoareTripleChecker+Invalid, 474 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 137 IncrementalHoareTripleChecker+Valid, 337 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-22 07:30:04,881 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [843 Valid, 1483 Invalid, 474 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [137 Valid, 337 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-22 07:30:04,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63546 states. [2024-11-22 07:30:07,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63546 to 16828. [2024-11-22 07:30:07,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16828 states, 13765 states have (on average 1.5901925172539049) internal successors, (21889), 13814 states have internal predecessors, (21889), 2948 states have call successors, (2948), 114 states have call predecessors, (2948), 114 states have return successors, (2948), 2899 states have call predecessors, (2948), 2948 states have call successors, (2948) [2024-11-22 07:30:07,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16828 states to 16828 states and 27785 transitions. [2024-11-22 07:30:07,702 INFO L78 Accepts]: Start accepts. Automaton has 16828 states and 27785 transitions. Word has length 526 [2024-11-22 07:30:07,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 07:30:07,704 INFO L471 AbstractCegarLoop]: Abstraction has 16828 states and 27785 transitions. [2024-11-22 07:30:07,704 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 5 states have internal predecessors, (109), 1 states have call successors, (84), 1 states have call predecessors, (84), 1 states have return successors, (84), 1 states have call predecessors, (84), 1 states have call successors, (84) [2024-11-22 07:30:07,704 INFO L276 IsEmpty]: Start isEmpty. Operand 16828 states and 27785 transitions. [2024-11-22 07:30:07,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 527 [2024-11-22 07:30:07,714 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 07:30:07,715 INFO L215 NwaCegarLoop]: trace histogram [84, 84, 84, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:30:07,715 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-22 07:30:07,715 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 07:30:07,715 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 07:30:07,717 INFO L85 PathProgramCache]: Analyzing trace with hash -1835922184, now seen corresponding path program 1 times [2024-11-22 07:30:07,718 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 07:30:07,718 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2035159235] [2024-11-22 07:30:07,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 07:30:07,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 07:30:08,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 07:30:08,371 INFO L134 CoverageAnalysis]: Checked inductivity of 13944 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13944 trivial. 0 not checked. [2024-11-22 07:30:08,372 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 07:30:08,372 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2035159235] [2024-11-22 07:30:08,372 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2035159235] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 07:30:08,372 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 07:30:08,372 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 07:30:08,372 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1903252131] [2024-11-22 07:30:08,373 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 07:30:08,373 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 07:30:08,373 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 07:30:08,374 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 07:30:08,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 07:30:08,374 INFO L87 Difference]: Start difference. First operand 16828 states and 27785 transitions. Second operand has 4 states, 4 states have (on average 27.25) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (84), 1 states have call predecessors, (84), 1 states have return successors, (84), 1 states have call predecessors, (84), 1 states have call successors, (84) [2024-11-22 07:30:11,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 07:30:11,326 INFO L93 Difference]: Finished difference Result 42698 states and 70572 transitions. [2024-11-22 07:30:11,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 07:30:11,327 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.25) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (84), 1 states have call predecessors, (84), 1 states have return successors, (84), 1 states have call predecessors, (84), 1 states have call successors, (84) Word has length 526 [2024-11-22 07:30:11,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 07:30:11,434 INFO L225 Difference]: With dead ends: 42698 [2024-11-22 07:30:11,435 INFO L226 Difference]: Without dead ends: 26012 [2024-11-22 07:30:11,481 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 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 07:30:11,483 INFO L432 NwaCegarLoop]: 491 mSDtfsCounter, 586 mSDsluCounter, 615 mSDsCounter, 0 mSdLazyCounter, 266 mSolverCounterSat, 135 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 586 SdHoareTripleChecker+Valid, 1106 SdHoareTripleChecker+Invalid, 401 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 135 IncrementalHoareTripleChecker+Valid, 266 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-22 07:30:11,483 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [586 Valid, 1106 Invalid, 401 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [135 Valid, 266 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-22 07:30:11,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26012 states. [2024-11-22 07:30:13,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26012 to 17132. [2024-11-22 07:30:13,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17132 states, 14069 states have (on average 1.5944985428957281) internal successors, (22433), 14118 states have internal predecessors, (22433), 2948 states have call successors, (2948), 114 states have call predecessors, (2948), 114 states have return successors, (2948), 2899 states have call predecessors, (2948), 2948 states have call successors, (2948) [2024-11-22 07:30:13,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17132 states to 17132 states and 28329 transitions. [2024-11-22 07:30:13,509 INFO L78 Accepts]: Start accepts. Automaton has 17132 states and 28329 transitions. Word has length 526 [2024-11-22 07:30:13,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 07:30:13,511 INFO L471 AbstractCegarLoop]: Abstraction has 17132 states and 28329 transitions. [2024-11-22 07:30:13,511 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.25) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (84), 1 states have call predecessors, (84), 1 states have return successors, (84), 1 states have call predecessors, (84), 1 states have call successors, (84) [2024-11-22 07:30:13,511 INFO L276 IsEmpty]: Start isEmpty. Operand 17132 states and 28329 transitions. [2024-11-22 07:30:13,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 527 [2024-11-22 07:30:13,522 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 07:30:13,522 INFO L215 NwaCegarLoop]: trace histogram [84, 84, 84, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:30:13,523 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-22 07:30:13,523 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 07:30:13,523 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 07:30:13,523 INFO L85 PathProgramCache]: Analyzing trace with hash -1858554438, now seen corresponding path program 1 times [2024-11-22 07:30:13,524 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 07:30:13,524 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [679586092] [2024-11-22 07:30:13,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 07:30:13,524 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 07:30:13,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 07:30:14,317 INFO L134 CoverageAnalysis]: Checked inductivity of 13944 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13944 trivial. 0 not checked. [2024-11-22 07:30:14,317 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 07:30:14,317 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [679586092] [2024-11-22 07:30:14,318 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [679586092] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 07:30:14,318 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 07:30:14,318 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 07:30:14,318 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1731633660] [2024-11-22 07:30:14,319 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 07:30:14,319 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 07:30:14,319 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 07:30:14,320 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 07:30:14,320 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-22 07:30:14,321 INFO L87 Difference]: Start difference. First operand 17132 states and 28329 transitions. Second operand has 6 states, 6 states have (on average 18.166666666666668) internal successors, (109), 6 states have internal predecessors, (109), 1 states have call successors, (84), 1 states have call predecessors, (84), 1 states have return successors, (84), 1 states have call predecessors, (84), 1 states have call successors, (84) [2024-11-22 07:30:18,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 07:30:18,651 INFO L93 Difference]: Finished difference Result 55376 states and 91853 transitions. [2024-11-22 07:30:18,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-22 07:30:18,652 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 18.166666666666668) internal successors, (109), 6 states have internal predecessors, (109), 1 states have call successors, (84), 1 states have call predecessors, (84), 1 states have return successors, (84), 1 states have call predecessors, (84), 1 states have call successors, (84) Word has length 526 [2024-11-22 07:30:18,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 07:30:18,774 INFO L225 Difference]: With dead ends: 55376 [2024-11-22 07:30:18,774 INFO L226 Difference]: Without dead ends: 38386 [2024-11-22 07:30:18,820 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2024-11-22 07:30:18,821 INFO L432 NwaCegarLoop]: 712 mSDtfsCounter, 858 mSDsluCounter, 2371 mSDsCounter, 0 mSdLazyCounter, 683 mSolverCounterSat, 339 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 858 SdHoareTripleChecker+Valid, 3083 SdHoareTripleChecker+Invalid, 1022 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 339 IncrementalHoareTripleChecker+Valid, 683 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-22 07:30:18,821 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [858 Valid, 3083 Invalid, 1022 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [339 Valid, 683 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-22 07:30:18,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38386 states. [2024-11-22 07:30:22,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38386 to 31608. [2024-11-22 07:30:22,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31608 states, 25985 states have (on average 1.595420434866269) internal successors, (41457), 26078 states have internal predecessors, (41457), 5412 states have call successors, (5412), 210 states have call predecessors, (5412), 210 states have return successors, (5412), 5319 states have call predecessors, (5412), 5412 states have call successors, (5412) [2024-11-22 07:30:22,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31608 states to 31608 states and 52281 transitions. [2024-11-22 07:30:22,662 INFO L78 Accepts]: Start accepts. Automaton has 31608 states and 52281 transitions. Word has length 526 [2024-11-22 07:30:22,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 07:30:22,663 INFO L471 AbstractCegarLoop]: Abstraction has 31608 states and 52281 transitions. [2024-11-22 07:30:22,664 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 18.166666666666668) internal successors, (109), 6 states have internal predecessors, (109), 1 states have call successors, (84), 1 states have call predecessors, (84), 1 states have return successors, (84), 1 states have call predecessors, (84), 1 states have call successors, (84) [2024-11-22 07:30:22,664 INFO L276 IsEmpty]: Start isEmpty. Operand 31608 states and 52281 transitions. [2024-11-22 07:30:22,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 527 [2024-11-22 07:30:22,685 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 07:30:22,685 INFO L215 NwaCegarLoop]: trace histogram [84, 84, 84, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:30:22,685 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-22 07:30:22,686 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 07:30:22,686 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 07:30:22,686 INFO L85 PathProgramCache]: Analyzing trace with hash -1902858116, now seen corresponding path program 1 times [2024-11-22 07:30:22,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 07:30:22,686 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [143835410] [2024-11-22 07:30:22,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 07:30:22,687 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 07:30:22,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 07:30:23,158 INFO L134 CoverageAnalysis]: Checked inductivity of 13944 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13944 trivial. 0 not checked. [2024-11-22 07:30:23,158 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 07:30:23,158 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [143835410] [2024-11-22 07:30:23,159 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [143835410] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 07:30:23,159 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 07:30:23,159 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 07:30:23,159 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [985564906] [2024-11-22 07:30:23,159 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 07:30:23,161 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 07:30:23,161 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 07:30:23,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 07:30:23,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-22 07:30:23,162 INFO L87 Difference]: Start difference. First operand 31608 states and 52281 transitions. Second operand has 5 states, 5 states have (on average 21.8) internal successors, (109), 5 states have internal predecessors, (109), 1 states have call successors, (84), 1 states have call predecessors, (84), 1 states have return successors, (84), 1 states have call predecessors, (84), 1 states have call successors, (84)