./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount500_file-55.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 803cd42f Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount500_file-55.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 0e49f641837e2645381c1f8f53d3b9afa212dfe1d8bd986d5ccb7d6262feaded --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-803cd42-m [2024-11-22 12:03:04,423 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-22 12:03:04,492 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-22 12:03:04,499 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-22 12:03:04,500 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-22 12:03:04,529 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-22 12:03:04,530 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-22 12:03:04,530 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-22 12:03:04,531 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-22 12:03:04,533 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-22 12:03:04,533 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-22 12:03:04,534 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-22 12:03:04,534 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-22 12:03:04,536 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-22 12:03:04,536 INFO L153 SettingsManager]: * Use SBE=true [2024-11-22 12:03:04,537 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-22 12:03:04,537 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-22 12:03:04,537 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-22 12:03:04,538 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-22 12:03:04,538 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-22 12:03:04,540 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-22 12:03:04,541 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-22 12:03:04,541 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-22 12:03:04,541 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-22 12:03:04,542 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-22 12:03:04,542 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-22 12:03:04,542 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-22 12:03:04,542 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-22 12:03:04,543 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-22 12:03:04,543 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-22 12:03:04,543 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-22 12:03:04,543 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-22 12:03:04,544 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 12:03:04,544 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-22 12:03:04,544 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-22 12:03:04,544 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-22 12:03:04,545 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-22 12:03:04,545 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-22 12:03:04,545 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-22 12:03:04,546 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-22 12:03:04,546 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-22 12:03:04,546 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-22 12:03:04,547 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0e49f641837e2645381c1f8f53d3b9afa212dfe1d8bd986d5ccb7d6262feaded [2024-11-22 12:03:04,799 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-22 12:03:04,824 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-22 12:03:04,828 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-22 12:03:04,829 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-22 12:03:04,830 INFO L274 PluginConnector]: CDTParser initialized [2024-11-22 12:03:04,831 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount500_file-55.i [2024-11-22 12:03:06,282 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-22 12:03:06,579 INFO L384 CDTParser]: Found 1 translation units. [2024-11-22 12:03:06,580 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount500_file-55.i [2024-11-22 12:03:06,607 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b3eec76fa/3670b5a50172445185b22fcdfe377617/FLAG536330422 [2024-11-22 12:03:06,621 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b3eec76fa/3670b5a50172445185b22fcdfe377617 [2024-11-22 12:03:06,623 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-22 12:03:06,624 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-22 12:03:06,626 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-22 12:03:06,626 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-22 12:03:06,631 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-22 12:03:06,632 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 12:03:06" (1/1) ... [2024-11-22 12:03:06,634 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@68ee7126 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:03:06, skipping insertion in model container [2024-11-22 12:03:06,634 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 12:03:06" (1/1) ... [2024-11-22 12:03:06,687 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-22 12:03:06,864 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount500_file-55.i[916,929] [2024-11-22 12:03:07,092 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 12:03:07,113 INFO L200 MainTranslator]: Completed pre-run [2024-11-22 12:03:07,126 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount500_file-55.i[916,929] [2024-11-22 12:03:07,246 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 12:03:07,274 INFO L204 MainTranslator]: Completed translation [2024-11-22 12:03:07,278 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:03:07 WrapperNode [2024-11-22 12:03:07,278 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-22 12:03:07,279 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-22 12:03:07,279 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-22 12:03:07,279 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-22 12:03:07,287 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:03:07" (1/1) ... [2024-11-22 12:03:07,311 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:03:07" (1/1) ... [2024-11-22 12:03:07,426 INFO L138 Inliner]: procedures = 26, calls = 91, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 753 [2024-11-22 12:03:07,427 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-22 12:03:07,427 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-22 12:03:07,428 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-22 12:03:07,428 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-22 12:03:07,438 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:03:07" (1/1) ... [2024-11-22 12:03:07,439 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:03:07" (1/1) ... [2024-11-22 12:03:07,469 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:03:07" (1/1) ... [2024-11-22 12:03:07,545 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 12:03:07,549 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:03:07" (1/1) ... [2024-11-22 12:03:07,549 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:03:07" (1/1) ... [2024-11-22 12:03:07,585 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:03:07" (1/1) ... [2024-11-22 12:03:07,601 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:03:07" (1/1) ... [2024-11-22 12:03:07,624 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:03:07" (1/1) ... [2024-11-22 12:03:07,668 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:03:07" (1/1) ... [2024-11-22 12:03:07,694 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-22 12:03:07,695 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-22 12:03:07,695 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-22 12:03:07,695 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-22 12:03:07,696 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:03:07" (1/1) ... [2024-11-22 12:03:07,703 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 12:03:07,713 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 12:03:07,730 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 12:03:07,732 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 12:03:07,781 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-22 12:03:07,782 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-22 12:03:07,782 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-22 12:03:07,782 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-22 12:03:07,782 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-22 12:03:07,782 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-22 12:03:07,927 INFO L238 CfgBuilder]: Building ICFG [2024-11-22 12:03:07,928 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-22 12:03:09,121 INFO L? ?]: Removed 79 outVars from TransFormulas that were not future-live. [2024-11-22 12:03:09,121 INFO L287 CfgBuilder]: Performing block encoding [2024-11-22 12:03:09,144 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-22 12:03:09,145 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-22 12:03:09,145 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:03:09 BoogieIcfgContainer [2024-11-22 12:03:09,145 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-22 12:03:09,147 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-22 12:03:09,148 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-22 12:03:09,151 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-22 12:03:09,152 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 12:03:06" (1/3) ... [2024-11-22 12:03:09,152 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59bb2171 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 12:03:09, skipping insertion in model container [2024-11-22 12:03:09,153 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:03:07" (2/3) ... [2024-11-22 12:03:09,154 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59bb2171 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 12:03:09, skipping insertion in model container [2024-11-22 12:03:09,154 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:03:09" (3/3) ... [2024-11-22 12:03:09,155 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount500_file-55.i [2024-11-22 12:03:09,171 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-22 12:03:09,171 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-22 12:03:09,250 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 12:03:09,258 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;@54517e2d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 12:03:09,259 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-22 12:03:09,266 INFO L276 IsEmpty]: Start isEmpty. Operand has 298 states, 217 states have (on average 1.5115207373271888) internal successors, (328), 218 states have internal predecessors, (328), 78 states have call successors, (78), 1 states have call predecessors, (78), 1 states have return successors, (78), 78 states have call predecessors, (78), 78 states have call successors, (78) [2024-11-22 12:03:09,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 542 [2024-11-22 12:03:09,303 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:03:09,304 INFO L215 NwaCegarLoop]: trace histogram [78, 78, 78, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:03:09,305 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:03:09,311 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:03:09,311 INFO L85 PathProgramCache]: Analyzing trace with hash -1318963282, now seen corresponding path program 1 times [2024-11-22 12:03:09,319 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:03:09,320 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1164502678] [2024-11-22 12:03:09,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:03:09,320 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:03:09,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:03:10,095 INFO L134 CoverageAnalysis]: Checked inductivity of 12012 backedges. 0 proven. 154 refuted. 0 times theorem prover too weak. 11858 trivial. 0 not checked. [2024-11-22 12:03:10,096 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:03:10,097 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1164502678] [2024-11-22 12:03:10,097 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1164502678] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 12:03:10,098 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1058519015] [2024-11-22 12:03:10,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:03:10,099 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 12:03:10,099 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 12:03:10,101 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 12:03:10,103 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 12:03:10,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:03:10,553 INFO L255 TraceCheckSpWp]: Trace formula consists of 1308 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-22 12:03:10,579 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 12:03:10,644 INFO L134 CoverageAnalysis]: Checked inductivity of 12012 backedges. 154 proven. 0 refuted. 0 times theorem prover too weak. 11858 trivial. 0 not checked. [2024-11-22 12:03:10,644 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 12:03:10,645 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1058519015] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:03:10,645 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 12:03:10,645 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-22 12:03:10,650 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [498436344] [2024-11-22 12:03:10,650 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:03:10,655 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-22 12:03:10,656 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:03:10,681 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-22 12:03:10,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-22 12:03:10,685 INFO L87 Difference]: Start difference. First operand has 298 states, 217 states have (on average 1.5115207373271888) internal successors, (328), 218 states have internal predecessors, (328), 78 states have call successors, (78), 1 states have call predecessors, (78), 1 states have return successors, (78), 78 states have call predecessors, (78), 78 states have call successors, (78) Second operand has 2 states, 2 states have (on average 78.0) internal successors, (156), 2 states have internal predecessors, (156), 2 states have call successors, (78), 2 states have call predecessors, (78), 1 states have return successors, (78), 1 states have call predecessors, (78), 2 states have call successors, (78) [2024-11-22 12:03:10,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:03:10,742 INFO L93 Difference]: Finished difference Result 588 states and 1038 transitions. [2024-11-22 12:03:10,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-22 12:03:10,747 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 78.0) internal successors, (156), 2 states have internal predecessors, (156), 2 states have call successors, (78), 2 states have call predecessors, (78), 1 states have return successors, (78), 1 states have call predecessors, (78), 2 states have call successors, (78) Word has length 541 [2024-11-22 12:03:10,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:03:10,756 INFO L225 Difference]: With dead ends: 588 [2024-11-22 12:03:10,757 INFO L226 Difference]: Without dead ends: 293 [2024-11-22 12:03:10,763 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 542 GetRequests, 542 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 12:03:10,765 INFO L432 NwaCegarLoop]: 474 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, 474 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 12:03:10,766 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 474 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 12:03:10,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 293 states. [2024-11-22 12:03:10,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 293 to 293. [2024-11-22 12:03:10,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 293 states, 213 states have (on average 1.4929577464788732) internal successors, (318), 213 states have internal predecessors, (318), 78 states have call successors, (78), 1 states have call predecessors, (78), 1 states have return successors, (78), 78 states have call predecessors, (78), 78 states have call successors, (78) [2024-11-22 12:03:10,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 293 states to 293 states and 474 transitions. [2024-11-22 12:03:10,839 INFO L78 Accepts]: Start accepts. Automaton has 293 states and 474 transitions. Word has length 541 [2024-11-22 12:03:10,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:03:10,839 INFO L471 AbstractCegarLoop]: Abstraction has 293 states and 474 transitions. [2024-11-22 12:03:10,840 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 78.0) internal successors, (156), 2 states have internal predecessors, (156), 2 states have call successors, (78), 2 states have call predecessors, (78), 1 states have return successors, (78), 1 states have call predecessors, (78), 2 states have call successors, (78) [2024-11-22 12:03:10,840 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states and 474 transitions. [2024-11-22 12:03:10,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 542 [2024-11-22 12:03:10,850 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:03:10,851 INFO L215 NwaCegarLoop]: trace histogram [78, 78, 78, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:03:10,864 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 12:03:11,055 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 12:03:11,056 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:03:11,056 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:03:11,057 INFO L85 PathProgramCache]: Analyzing trace with hash -1419824802, now seen corresponding path program 1 times [2024-11-22 12:03:11,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:03:11,057 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1483825844] [2024-11-22 12:03:11,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:03:11,057 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:03:11,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:03:11,679 INFO L134 CoverageAnalysis]: Checked inductivity of 12012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12012 trivial. 0 not checked. [2024-11-22 12:03:11,680 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:03:11,680 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1483825844] [2024-11-22 12:03:11,680 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1483825844] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:03:11,681 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:03:11,681 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 12:03:11,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1558966770] [2024-11-22 12:03:11,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:03:11,685 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 12:03:11,686 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:03:11,687 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 12:03:11,687 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 12:03:11,688 INFO L87 Difference]: Start difference. First operand 293 states and 474 transitions. Second operand has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 3 states have internal predecessors, (154), 1 states have call successors, (78), 1 states have call predecessors, (78), 1 states have return successors, (78), 1 states have call predecessors, (78), 1 states have call successors, (78) [2024-11-22 12:03:11,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:03:11,840 INFO L93 Difference]: Finished difference Result 785 states and 1272 transitions. [2024-11-22 12:03:11,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 12:03:11,842 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 3 states have internal predecessors, (154), 1 states have call successors, (78), 1 states have call predecessors, (78), 1 states have return successors, (78), 1 states have call predecessors, (78), 1 states have call successors, (78) Word has length 541 [2024-11-22 12:03:11,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:03:11,864 INFO L225 Difference]: With dead ends: 785 [2024-11-22 12:03:11,865 INFO L226 Difference]: Without dead ends: 495 [2024-11-22 12:03:11,866 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 12:03:11,867 INFO L432 NwaCegarLoop]: 620 mSDtfsCounter, 316 mSDsluCounter, 437 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 316 SdHoareTripleChecker+Valid, 1057 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 12:03:11,867 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [316 Valid, 1057 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 12:03:11,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 495 states. [2024-11-22 12:03:11,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 495 to 492. [2024-11-22 12:03:11,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 492 states, 382 states have (on average 1.5183246073298429) internal successors, (580), 383 states have internal predecessors, (580), 107 states have call successors, (107), 2 states have call predecessors, (107), 2 states have return successors, (107), 106 states have call predecessors, (107), 107 states have call successors, (107) [2024-11-22 12:03:11,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 492 states to 492 states and 794 transitions. [2024-11-22 12:03:11,934 INFO L78 Accepts]: Start accepts. Automaton has 492 states and 794 transitions. Word has length 541 [2024-11-22 12:03:11,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:03:11,936 INFO L471 AbstractCegarLoop]: Abstraction has 492 states and 794 transitions. [2024-11-22 12:03:11,936 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 3 states have internal predecessors, (154), 1 states have call successors, (78), 1 states have call predecessors, (78), 1 states have return successors, (78), 1 states have call predecessors, (78), 1 states have call successors, (78) [2024-11-22 12:03:11,938 INFO L276 IsEmpty]: Start isEmpty. Operand 492 states and 794 transitions. [2024-11-22 12:03:11,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 542 [2024-11-22 12:03:11,950 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:03:11,950 INFO L215 NwaCegarLoop]: trace histogram [78, 78, 78, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:03:11,950 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-22 12:03:11,950 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:03:11,951 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:03:11,952 INFO L85 PathProgramCache]: Analyzing trace with hash 1480254398, now seen corresponding path program 1 times [2024-11-22 12:03:11,953 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:03:11,953 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1793646088] [2024-11-22 12:03:11,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:03:11,954 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:03:12,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:03:12,457 INFO L134 CoverageAnalysis]: Checked inductivity of 12012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12012 trivial. 0 not checked. [2024-11-22 12:03:12,458 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:03:12,461 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1793646088] [2024-11-22 12:03:12,461 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1793646088] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:03:12,461 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:03:12,462 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 12:03:12,462 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1712282503] [2024-11-22 12:03:12,464 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:03:12,465 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 12:03:12,467 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:03:12,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 12:03:12,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 12:03:12,469 INFO L87 Difference]: Start difference. First operand 492 states and 794 transitions. Second operand has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 3 states have internal predecessors, (154), 1 states have call successors, (78), 1 states have call predecessors, (78), 1 states have return successors, (78), 1 states have call predecessors, (78), 1 states have call successors, (78) [2024-11-22 12:03:12,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:03:12,584 INFO L93 Difference]: Finished difference Result 988 states and 1590 transitions. [2024-11-22 12:03:12,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 12:03:12,586 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 3 states have internal predecessors, (154), 1 states have call successors, (78), 1 states have call predecessors, (78), 1 states have return successors, (78), 1 states have call predecessors, (78), 1 states have call successors, (78) Word has length 541 [2024-11-22 12:03:12,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:03:12,592 INFO L225 Difference]: With dead ends: 988 [2024-11-22 12:03:12,593 INFO L226 Difference]: Without dead ends: 499 [2024-11-22 12:03:12,595 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 12:03:12,596 INFO L432 NwaCegarLoop]: 512 mSDtfsCounter, 241 mSDsluCounter, 441 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 241 SdHoareTripleChecker+Valid, 953 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 12:03:12,597 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [241 Valid, 953 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 12:03:12,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 499 states. [2024-11-22 12:03:12,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 499 to 394. [2024-11-22 12:03:12,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 394 states, 313 states have (on average 1.5271565495207668) internal successors, (478), 313 states have internal predecessors, (478), 78 states have call successors, (78), 2 states have call predecessors, (78), 2 states have return successors, (78), 78 states have call predecessors, (78), 78 states have call successors, (78) [2024-11-22 12:03:12,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 394 states to 394 states and 634 transitions. [2024-11-22 12:03:12,629 INFO L78 Accepts]: Start accepts. Automaton has 394 states and 634 transitions. Word has length 541 [2024-11-22 12:03:12,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:03:12,633 INFO L471 AbstractCegarLoop]: Abstraction has 394 states and 634 transitions. [2024-11-22 12:03:12,633 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 3 states have internal predecessors, (154), 1 states have call successors, (78), 1 states have call predecessors, (78), 1 states have return successors, (78), 1 states have call predecessors, (78), 1 states have call successors, (78) [2024-11-22 12:03:12,633 INFO L276 IsEmpty]: Start isEmpty. Operand 394 states and 634 transitions. [2024-11-22 12:03:12,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 542 [2024-11-22 12:03:12,644 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:03:12,645 INFO L215 NwaCegarLoop]: trace histogram [78, 78, 78, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:03:12,645 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-22 12:03:12,645 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:03:12,645 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:03:12,646 INFO L85 PathProgramCache]: Analyzing trace with hash -1982585666, now seen corresponding path program 1 times [2024-11-22 12:03:12,646 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:03:12,646 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1345623852] [2024-11-22 12:03:12,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:03:12,647 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:03:12,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:03:13,029 INFO L134 CoverageAnalysis]: Checked inductivity of 12012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12012 trivial. 0 not checked. [2024-11-22 12:03:13,030 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:03:13,030 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1345623852] [2024-11-22 12:03:13,030 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1345623852] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:03:13,030 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:03:13,031 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 12:03:13,031 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [582911006] [2024-11-22 12:03:13,031 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:03:13,032 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 12:03:13,032 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:03:13,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 12:03:13,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 12:03:13,034 INFO L87 Difference]: Start difference. First operand 394 states and 634 transitions. Second operand has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 3 states have internal predecessors, (154), 1 states have call successors, (78), 1 states have call predecessors, (78), 1 states have return successors, (78), 1 states have call predecessors, (78), 1 states have call successors, (78) [2024-11-22 12:03:13,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:03:13,140 INFO L93 Difference]: Finished difference Result 1173 states and 1890 transitions. [2024-11-22 12:03:13,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 12:03:13,140 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 3 states have internal predecessors, (154), 1 states have call successors, (78), 1 states have call predecessors, (78), 1 states have return successors, (78), 1 states have call predecessors, (78), 1 states have call successors, (78) Word has length 541 [2024-11-22 12:03:13,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:03:13,146 INFO L225 Difference]: With dead ends: 1173 [2024-11-22 12:03:13,146 INFO L226 Difference]: Without dead ends: 782 [2024-11-22 12:03:13,148 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 12:03:13,149 INFO L432 NwaCegarLoop]: 536 mSDtfsCounter, 431 mSDsluCounter, 448 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 431 SdHoareTripleChecker+Valid, 984 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 12:03:13,149 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [431 Valid, 984 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 12:03:13,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 782 states. [2024-11-22 12:03:13,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 782 to 780. [2024-11-22 12:03:13,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 780 states, 619 states have (on average 1.5105008077544426) internal successors, (935), 619 states have internal predecessors, (935), 156 states have call successors, (156), 4 states have call predecessors, (156), 4 states have return successors, (156), 156 states have call predecessors, (156), 156 states have call successors, (156) [2024-11-22 12:03:13,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 780 states to 780 states and 1247 transitions. [2024-11-22 12:03:13,194 INFO L78 Accepts]: Start accepts. Automaton has 780 states and 1247 transitions. Word has length 541 [2024-11-22 12:03:13,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:03:13,196 INFO L471 AbstractCegarLoop]: Abstraction has 780 states and 1247 transitions. [2024-11-22 12:03:13,196 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 3 states have internal predecessors, (154), 1 states have call successors, (78), 1 states have call predecessors, (78), 1 states have return successors, (78), 1 states have call predecessors, (78), 1 states have call successors, (78) [2024-11-22 12:03:13,196 INFO L276 IsEmpty]: Start isEmpty. Operand 780 states and 1247 transitions. [2024-11-22 12:03:13,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 542 [2024-11-22 12:03:13,200 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:03:13,200 INFO L215 NwaCegarLoop]: trace histogram [78, 78, 78, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:03:13,201 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-22 12:03:13,201 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:03:13,201 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:03:13,201 INFO L85 PathProgramCache]: Analyzing trace with hash 1082690494, now seen corresponding path program 1 times [2024-11-22 12:03:13,202 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:03:13,202 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1319467554] [2024-11-22 12:03:13,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:03:13,202 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:03:13,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:03:14,446 INFO L134 CoverageAnalysis]: Checked inductivity of 12012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12012 trivial. 0 not checked. [2024-11-22 12:03:14,447 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:03:14,447 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1319467554] [2024-11-22 12:03:14,447 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1319467554] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:03:14,447 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:03:14,447 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 12:03:14,447 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1319600480] [2024-11-22 12:03:14,448 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:03:14,449 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 12:03:14,449 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:03:14,450 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 12:03:14,450 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 12:03:14,450 INFO L87 Difference]: Start difference. First operand 780 states and 1247 transitions. Second operand has 4 states, 4 states have (on average 38.5) internal successors, (154), 4 states have internal predecessors, (154), 1 states have call successors, (78), 1 states have call predecessors, (78), 1 states have return successors, (78), 1 states have call predecessors, (78), 1 states have call successors, (78) [2024-11-22 12:03:14,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:03:14,893 INFO L93 Difference]: Finished difference Result 2511 states and 3993 transitions. [2024-11-22 12:03:14,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 12:03:14,894 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 38.5) internal successors, (154), 4 states have internal predecessors, (154), 1 states have call successors, (78), 1 states have call predecessors, (78), 1 states have return successors, (78), 1 states have call predecessors, (78), 1 states have call successors, (78) Word has length 541 [2024-11-22 12:03:14,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:03:14,904 INFO L225 Difference]: With dead ends: 2511 [2024-11-22 12:03:14,904 INFO L226 Difference]: Without dead ends: 1734 [2024-11-22 12:03:14,907 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-22 12:03:14,908 INFO L432 NwaCegarLoop]: 816 mSDtfsCounter, 513 mSDsluCounter, 976 mSDsCounter, 0 mSdLazyCounter, 177 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 513 SdHoareTripleChecker+Valid, 1792 SdHoareTripleChecker+Invalid, 244 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 177 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-22 12:03:14,908 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [513 Valid, 1792 Invalid, 244 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 177 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-22 12:03:14,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1734 states. [2024-11-22 12:03:14,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1734 to 1409. [2024-11-22 12:03:14,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1409 states, 1182 states have (on average 1.532994923857868) internal successors, (1812), 1184 states have internal predecessors, (1812), 218 states have call successors, (218), 8 states have call predecessors, (218), 8 states have return successors, (218), 216 states have call predecessors, (218), 218 states have call successors, (218) [2024-11-22 12:03:14,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1409 states to 1409 states and 2248 transitions. [2024-11-22 12:03:14,996 INFO L78 Accepts]: Start accepts. Automaton has 1409 states and 2248 transitions. Word has length 541 [2024-11-22 12:03:14,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:03:14,997 INFO L471 AbstractCegarLoop]: Abstraction has 1409 states and 2248 transitions. [2024-11-22 12:03:14,998 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 38.5) internal successors, (154), 4 states have internal predecessors, (154), 1 states have call successors, (78), 1 states have call predecessors, (78), 1 states have return successors, (78), 1 states have call predecessors, (78), 1 states have call successors, (78) [2024-11-22 12:03:14,998 INFO L276 IsEmpty]: Start isEmpty. Operand 1409 states and 2248 transitions. [2024-11-22 12:03:15,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 542 [2024-11-22 12:03:15,002 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:03:15,002 INFO L215 NwaCegarLoop]: trace histogram [78, 78, 78, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:03:15,003 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-22 12:03:15,003 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:03:15,003 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:03:15,003 INFO L85 PathProgramCache]: Analyzing trace with hash -59811972, now seen corresponding path program 1 times [2024-11-22 12:03:15,004 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:03:15,004 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [731966193] [2024-11-22 12:03:15,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:03:15,004 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:03:15,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:03:17,523 INFO L134 CoverageAnalysis]: Checked inductivity of 12012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12012 trivial. 0 not checked. [2024-11-22 12:03:17,523 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:03:17,523 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [731966193] [2024-11-22 12:03:17,524 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [731966193] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:03:17,524 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:03:17,524 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-22 12:03:17,524 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [954705873] [2024-11-22 12:03:17,524 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:03:17,525 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-22 12:03:17,526 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:03:17,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-22 12:03:17,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2024-11-22 12:03:17,527 INFO L87 Difference]: Start difference. First operand 1409 states and 2248 transitions. Second operand has 9 states, 9 states have (on average 17.11111111111111) internal successors, (154), 9 states have internal predecessors, (154), 1 states have call successors, (78), 1 states have call predecessors, (78), 1 states have return successors, (78), 1 states have call predecessors, (78), 1 states have call successors, (78) [2024-11-22 12:03:19,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:03:19,955 INFO L93 Difference]: Finished difference Result 8275 states and 13201 transitions. [2024-11-22 12:03:19,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-22 12:03:19,956 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 17.11111111111111) internal successors, (154), 9 states have internal predecessors, (154), 1 states have call successors, (78), 1 states have call predecessors, (78), 1 states have return successors, (78), 1 states have call predecessors, (78), 1 states have call successors, (78) Word has length 541 [2024-11-22 12:03:19,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:03:19,991 INFO L225 Difference]: With dead ends: 8275 [2024-11-22 12:03:19,991 INFO L226 Difference]: Without dead ends: 6869 [2024-11-22 12:03:19,999 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=50, Invalid=82, Unknown=0, NotChecked=0, Total=132 [2024-11-22 12:03:20,002 INFO L432 NwaCegarLoop]: 718 mSDtfsCounter, 2280 mSDsluCounter, 2339 mSDsCounter, 0 mSdLazyCounter, 1820 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2280 SdHoareTripleChecker+Valid, 3057 SdHoareTripleChecker+Invalid, 1825 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 1820 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-11-22 12:03:20,003 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2280 Valid, 3057 Invalid, 1825 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 1820 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-11-22 12:03:20,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6869 states. [2024-11-22 12:03:20,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6869 to 4935. [2024-11-22 12:03:20,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4935 states, 4330 states have (on average 1.5602771362586605) internal successors, (6756), 4338 states have internal predecessors, (6756), 580 states have call successors, (580), 24 states have call predecessors, (580), 24 states have return successors, (580), 572 states have call predecessors, (580), 580 states have call successors, (580) [2024-11-22 12:03:20,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4935 states to 4935 states and 7916 transitions. [2024-11-22 12:03:20,264 INFO L78 Accepts]: Start accepts. Automaton has 4935 states and 7916 transitions. Word has length 541 [2024-11-22 12:03:20,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:03:20,267 INFO L471 AbstractCegarLoop]: Abstraction has 4935 states and 7916 transitions. [2024-11-22 12:03:20,268 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 17.11111111111111) internal successors, (154), 9 states have internal predecessors, (154), 1 states have call successors, (78), 1 states have call predecessors, (78), 1 states have return successors, (78), 1 states have call predecessors, (78), 1 states have call successors, (78) [2024-11-22 12:03:20,268 INFO L276 IsEmpty]: Start isEmpty. Operand 4935 states and 7916 transitions. [2024-11-22 12:03:20,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 542 [2024-11-22 12:03:20,276 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:03:20,277 INFO L215 NwaCegarLoop]: trace histogram [78, 78, 78, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:03:20,277 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-22 12:03:20,277 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:03:20,277 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:03:20,278 INFO L85 PathProgramCache]: Analyzing trace with hash -1117650050, now seen corresponding path program 1 times [2024-11-22 12:03:20,278 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:03:20,278 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [575542111] [2024-11-22 12:03:20,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:03:20,278 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:03:20,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:03:20,592 INFO L134 CoverageAnalysis]: Checked inductivity of 12012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12012 trivial. 0 not checked. [2024-11-22 12:03:20,592 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:03:20,592 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [575542111] [2024-11-22 12:03:20,592 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [575542111] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:03:20,593 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:03:20,593 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 12:03:20,593 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [74364534] [2024-11-22 12:03:20,593 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:03:20,594 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 12:03:20,594 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:03:20,595 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 12:03:20,595 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 12:03:20,595 INFO L87 Difference]: Start difference. First operand 4935 states and 7916 transitions. Second operand has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 3 states have internal predecessors, (154), 1 states have call successors, (78), 1 states have call predecessors, (78), 1 states have return successors, (78), 1 states have call predecessors, (78), 1 states have call successors, (78) [2024-11-22 12:03:20,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:03:20,898 INFO L93 Difference]: Finished difference Result 13401 states and 21468 transitions. [2024-11-22 12:03:20,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 12:03:20,900 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 3 states have internal predecessors, (154), 1 states have call successors, (78), 1 states have call predecessors, (78), 1 states have return successors, (78), 1 states have call predecessors, (78), 1 states have call successors, (78) Word has length 541 [2024-11-22 12:03:20,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:03:20,946 INFO L225 Difference]: With dead ends: 13401 [2024-11-22 12:03:20,947 INFO L226 Difference]: Without dead ends: 8469 [2024-11-22 12:03:20,959 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 12:03:20,961 INFO L432 NwaCegarLoop]: 630 mSDtfsCounter, 264 mSDsluCounter, 460 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 264 SdHoareTripleChecker+Valid, 1090 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 12:03:20,961 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [264 Valid, 1090 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 12:03:20,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8469 states. [2024-11-22 12:03:21,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8469 to 8461. [2024-11-22 12:03:21,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8461 states, 7412 states have (on average 1.5563950350782514) internal successors, (11536), 7432 states have internal predecessors, (11536), 1000 states have call successors, (1000), 48 states have call predecessors, (1000), 48 states have return successors, (1000), 980 states have call predecessors, (1000), 1000 states have call successors, (1000) [2024-11-22 12:03:21,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8461 states to 8461 states and 13536 transitions. [2024-11-22 12:03:21,464 INFO L78 Accepts]: Start accepts. Automaton has 8461 states and 13536 transitions. Word has length 541 [2024-11-22 12:03:21,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:03:21,465 INFO L471 AbstractCegarLoop]: Abstraction has 8461 states and 13536 transitions. [2024-11-22 12:03:21,466 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 3 states have internal predecessors, (154), 1 states have call successors, (78), 1 states have call predecessors, (78), 1 states have return successors, (78), 1 states have call predecessors, (78), 1 states have call successors, (78) [2024-11-22 12:03:21,466 INFO L276 IsEmpty]: Start isEmpty. Operand 8461 states and 13536 transitions. [2024-11-22 12:03:21,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 542 [2024-11-22 12:03:21,480 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:03:21,481 INFO L215 NwaCegarLoop]: trace histogram [78, 78, 78, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:03:21,481 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-22 12:03:21,481 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:03:21,482 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:03:21,482 INFO L85 PathProgramCache]: Analyzing trace with hash -2138718404, now seen corresponding path program 1 times [2024-11-22 12:03:21,482 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:03:21,482 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [201576292] [2024-11-22 12:03:21,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:03:21,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:03:21,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:03:21,929 INFO L134 CoverageAnalysis]: Checked inductivity of 12012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12012 trivial. 0 not checked. [2024-11-22 12:03:21,930 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:03:21,930 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [201576292] [2024-11-22 12:03:21,930 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [201576292] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:03:21,930 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:03:21,930 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 12:03:21,930 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [496928438] [2024-11-22 12:03:21,930 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:03:21,931 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 12:03:21,931 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:03:21,932 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 12:03:21,932 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 12:03:21,936 INFO L87 Difference]: Start difference. First operand 8461 states and 13536 transitions. Second operand has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 3 states have internal predecessors, (154), 1 states have call successors, (78), 1 states have call predecessors, (78), 1 states have return successors, (78), 1 states have call predecessors, (78), 1 states have call successors, (78) [2024-11-22 12:03:22,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:03:22,381 INFO L93 Difference]: Finished difference Result 16993 states and 27145 transitions. [2024-11-22 12:03:22,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 12:03:22,382 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 3 states have internal predecessors, (154), 1 states have call successors, (78), 1 states have call predecessors, (78), 1 states have return successors, (78), 1 states have call predecessors, (78), 1 states have call successors, (78) Word has length 541 [2024-11-22 12:03:22,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:03:22,454 INFO L225 Difference]: With dead ends: 16993 [2024-11-22 12:03:22,455 INFO L226 Difference]: Without dead ends: 8535 [2024-11-22 12:03:22,479 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 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 12:03:22,480 INFO L432 NwaCegarLoop]: 565 mSDtfsCounter, 100 mSDsluCounter, 450 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 1015 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 12:03:22,481 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [100 Valid, 1015 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 12:03:22,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8535 states. [2024-11-22 12:03:22,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8535 to 8532. [2024-11-22 12:03:22,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8532 states, 7456 states have (on average 1.5509656652360515) internal successors, (11564), 7477 states have internal predecessors, (11564), 1015 states have call successors, (1015), 60 states have call predecessors, (1015), 60 states have return successors, (1015), 994 states have call predecessors, (1015), 1015 states have call successors, (1015) [2024-11-22 12:03:22,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8532 states to 8532 states and 13594 transitions. [2024-11-22 12:03:22,963 INFO L78 Accepts]: Start accepts. Automaton has 8532 states and 13594 transitions. Word has length 541 [2024-11-22 12:03:22,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:03:22,964 INFO L471 AbstractCegarLoop]: Abstraction has 8532 states and 13594 transitions. [2024-11-22 12:03:22,965 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 3 states have internal predecessors, (154), 1 states have call successors, (78), 1 states have call predecessors, (78), 1 states have return successors, (78), 1 states have call predecessors, (78), 1 states have call successors, (78) [2024-11-22 12:03:22,965 INFO L276 IsEmpty]: Start isEmpty. Operand 8532 states and 13594 transitions. [2024-11-22 12:03:22,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 542 [2024-11-22 12:03:22,978 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:03:22,978 INFO L215 NwaCegarLoop]: trace histogram [78, 78, 78, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:03:22,978 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-22 12:03:22,978 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:03:22,979 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:03:22,979 INFO L85 PathProgramCache]: Analyzing trace with hash -943320962, now seen corresponding path program 1 times [2024-11-22 12:03:22,979 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:03:22,979 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1765819770] [2024-11-22 12:03:22,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:03:22,980 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:03:23,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:03:24,695 INFO L134 CoverageAnalysis]: Checked inductivity of 12012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12012 trivial. 0 not checked. [2024-11-22 12:03:24,695 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:03:24,695 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1765819770] [2024-11-22 12:03:24,696 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1765819770] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:03:24,696 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:03:24,696 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-22 12:03:24,696 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1213993589] [2024-11-22 12:03:24,696 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:03:24,698 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-22 12:03:24,698 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:03:24,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-22 12:03:24,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2024-11-22 12:03:24,699 INFO L87 Difference]: Start difference. First operand 8532 states and 13594 transitions. Second operand has 7 states, 7 states have (on average 22.0) internal successors, (154), 7 states have internal predecessors, (154), 1 states have call successors, (78), 1 states have call predecessors, (78), 1 states have return successors, (78), 1 states have call predecessors, (78), 1 states have call successors, (78) [2024-11-22 12:03:26,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:03:26,356 INFO L93 Difference]: Finished difference Result 24272 states and 38560 transitions. [2024-11-22 12:03:26,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-22 12:03:26,357 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 22.0) internal successors, (154), 7 states have internal predecessors, (154), 1 states have call successors, (78), 1 states have call predecessors, (78), 1 states have return successors, (78), 1 states have call predecessors, (78), 1 states have call successors, (78) Word has length 541 [2024-11-22 12:03:26,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:03:26,401 INFO L225 Difference]: With dead ends: 24272 [2024-11-22 12:03:26,402 INFO L226 Difference]: Without dead ends: 15766 [2024-11-22 12:03:26,422 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=53, Unknown=0, NotChecked=0, Total=90 [2024-11-22 12:03:26,424 INFO L432 NwaCegarLoop]: 624 mSDtfsCounter, 1655 mSDsluCounter, 1695 mSDsCounter, 0 mSdLazyCounter, 1153 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1655 SdHoareTripleChecker+Valid, 2319 SdHoareTripleChecker+Invalid, 1160 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1153 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-22 12:03:26,424 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1655 Valid, 2319 Invalid, 1160 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1153 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-22 12:03:26,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15766 states. [2024-11-22 12:03:26,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15766 to 9440. [2024-11-22 12:03:26,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9440 states, 8364 states have (on average 1.559062649450024) internal successors, (13040), 8385 states have internal predecessors, (13040), 1015 states have call successors, (1015), 60 states have call predecessors, (1015), 60 states have return successors, (1015), 994 states have call predecessors, (1015), 1015 states have call successors, (1015) [2024-11-22 12:03:26,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9440 states to 9440 states and 15070 transitions. [2024-11-22 12:03:26,866 INFO L78 Accepts]: Start accepts. Automaton has 9440 states and 15070 transitions. Word has length 541 [2024-11-22 12:03:26,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:03:26,867 INFO L471 AbstractCegarLoop]: Abstraction has 9440 states and 15070 transitions. [2024-11-22 12:03:26,869 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 22.0) internal successors, (154), 7 states have internal predecessors, (154), 1 states have call successors, (78), 1 states have call predecessors, (78), 1 states have return successors, (78), 1 states have call predecessors, (78), 1 states have call successors, (78) [2024-11-22 12:03:26,870 INFO L276 IsEmpty]: Start isEmpty. Operand 9440 states and 15070 transitions. [2024-11-22 12:03:26,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 542 [2024-11-22 12:03:26,882 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:03:26,882 INFO L215 NwaCegarLoop]: trace histogram [78, 78, 78, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:03:26,883 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-22 12:03:26,883 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:03:26,883 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:03:26,883 INFO L85 PathProgramCache]: Analyzing trace with hash 1393071548, now seen corresponding path program 1 times [2024-11-22 12:03:26,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:03:26,884 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [25825905] [2024-11-22 12:03:26,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:03:26,884 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:03:27,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:03:27,953 INFO L134 CoverageAnalysis]: Checked inductivity of 12012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12012 trivial. 0 not checked. [2024-11-22 12:03:27,954 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:03:27,954 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [25825905] [2024-11-22 12:03:27,954 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [25825905] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:03:27,954 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:03:27,955 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 12:03:27,955 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [586695380] [2024-11-22 12:03:27,955 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:03:27,956 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 12:03:27,956 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:03:27,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 12:03:27,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 12:03:27,957 INFO L87 Difference]: Start difference. First operand 9440 states and 15070 transitions. Second operand has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 3 states have internal predecessors, (154), 1 states have call successors, (78), 1 states have call predecessors, (78), 1 states have return successors, (78), 1 states have call predecessors, (78), 1 states have call successors, (78) [2024-11-22 12:03:28,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:03:28,514 INFO L93 Difference]: Finished difference Result 28268 states and 45128 transitions. [2024-11-22 12:03:28,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 12:03:28,515 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 3 states have internal predecessors, (154), 1 states have call successors, (78), 1 states have call predecessors, (78), 1 states have return successors, (78), 1 states have call predecessors, (78), 1 states have call successors, (78) Word has length 541 [2024-11-22 12:03:28,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:03:28,575 INFO L225 Difference]: With dead ends: 28268 [2024-11-22 12:03:28,575 INFO L226 Difference]: Without dead ends: 18854 [2024-11-22 12:03:28,604 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 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 12:03:28,605 INFO L432 NwaCegarLoop]: 741 mSDtfsCounter, 456 mSDsluCounter, 460 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 456 SdHoareTripleChecker+Valid, 1201 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 12:03:28,607 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [456 Valid, 1201 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 12:03:28,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18854 states. [2024-11-22 12:03:29,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18854 to 18852. [2024-11-22 12:03:29,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18852 states, 16716 states have (on average 1.55372098588179) internal successors, (25972), 16757 states have internal predecessors, (25972), 2015 states have call successors, (2015), 120 states have call predecessors, (2015), 120 states have return successors, (2015), 1974 states have call predecessors, (2015), 2015 states have call successors, (2015) [2024-11-22 12:03:29,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18852 states to 18852 states and 30002 transitions. [2024-11-22 12:03:29,423 INFO L78 Accepts]: Start accepts. Automaton has 18852 states and 30002 transitions. Word has length 541 [2024-11-22 12:03:29,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:03:29,424 INFO L471 AbstractCegarLoop]: Abstraction has 18852 states and 30002 transitions. [2024-11-22 12:03:29,424 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 3 states have internal predecessors, (154), 1 states have call successors, (78), 1 states have call predecessors, (78), 1 states have return successors, (78), 1 states have call predecessors, (78), 1 states have call successors, (78) [2024-11-22 12:03:29,424 INFO L276 IsEmpty]: Start isEmpty. Operand 18852 states and 30002 transitions. [2024-11-22 12:03:29,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 542 [2024-11-22 12:03:29,447 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:03:29,447 INFO L215 NwaCegarLoop]: trace histogram [78, 78, 78, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:03:29,447 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-22 12:03:29,448 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:03:29,448 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:03:29,448 INFO L85 PathProgramCache]: Analyzing trace with hash 1826800634, now seen corresponding path program 1 times [2024-11-22 12:03:29,449 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:03:29,449 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1686327706] [2024-11-22 12:03:29,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:03:29,449 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:03:30,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:03:30,689 INFO L134 CoverageAnalysis]: Checked inductivity of 12012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12012 trivial. 0 not checked. [2024-11-22 12:03:30,690 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:03:30,690 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1686327706] [2024-11-22 12:03:30,690 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1686327706] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:03:30,690 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:03:30,690 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 12:03:30,690 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1609552979] [2024-11-22 12:03:30,690 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:03:30,691 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 12:03:30,691 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:03:30,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 12:03:30,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 12:03:30,692 INFO L87 Difference]: Start difference. First operand 18852 states and 30002 transitions. Second operand has 5 states, 5 states have (on average 30.8) internal successors, (154), 5 states have internal predecessors, (154), 1 states have call successors, (78), 1 states have call predecessors, (78), 1 states have return successors, (78), 1 states have call predecessors, (78), 1 states have call successors, (78) [2024-11-22 12:03:31,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:03:31,807 INFO L93 Difference]: Finished difference Result 43432 states and 68606 transitions. [2024-11-22 12:03:31,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-22 12:03:31,808 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.8) internal successors, (154), 5 states have internal predecessors, (154), 1 states have call successors, (78), 1 states have call predecessors, (78), 1 states have return successors, (78), 1 states have call predecessors, (78), 1 states have call successors, (78) Word has length 541 [2024-11-22 12:03:31,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:03:31,892 INFO L225 Difference]: With dead ends: 43432 [2024-11-22 12:03:31,892 INFO L226 Difference]: Without dead ends: 24606 [2024-11-22 12:03:31,936 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-22 12:03:31,937 INFO L432 NwaCegarLoop]: 573 mSDtfsCounter, 1100 mSDsluCounter, 1848 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 123 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1100 SdHoareTripleChecker+Valid, 2421 SdHoareTripleChecker+Invalid, 250 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 123 IncrementalHoareTripleChecker+Valid, 127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-22 12:03:31,938 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1100 Valid, 2421 Invalid, 250 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [123 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-22 12:03:31,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24606 states. [2024-11-22 12:03:32,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24606 to 18643. [2024-11-22 12:03:32,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18643 states, 16476 states have (on average 1.5497086671522213) internal successors, (25533), 16518 states have internal predecessors, (25533), 2044 states have call successors, (2044), 122 states have call predecessors, (2044), 122 states have return successors, (2044), 2002 states have call predecessors, (2044), 2044 states have call successors, (2044) [2024-11-22 12:03:33,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18643 states to 18643 states and 29621 transitions. [2024-11-22 12:03:33,031 INFO L78 Accepts]: Start accepts. Automaton has 18643 states and 29621 transitions. Word has length 541 [2024-11-22 12:03:33,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:03:33,033 INFO L471 AbstractCegarLoop]: Abstraction has 18643 states and 29621 transitions. [2024-11-22 12:03:33,033 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.8) internal successors, (154), 5 states have internal predecessors, (154), 1 states have call successors, (78), 1 states have call predecessors, (78), 1 states have return successors, (78), 1 states have call predecessors, (78), 1 states have call successors, (78) [2024-11-22 12:03:33,033 INFO L276 IsEmpty]: Start isEmpty. Operand 18643 states and 29621 transitions. [2024-11-22 12:03:33,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 543 [2024-11-22 12:03:33,060 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:03:33,061 INFO L215 NwaCegarLoop]: trace histogram [78, 78, 78, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:03:33,061 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-22 12:03:33,061 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:03:33,061 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:03:33,062 INFO L85 PathProgramCache]: Analyzing trace with hash 635967462, now seen corresponding path program 1 times [2024-11-22 12:03:33,062 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:03:33,062 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [128889725] [2024-11-22 12:03:33,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:03:33,063 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:03:33,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:03:34,219 INFO L134 CoverageAnalysis]: Checked inductivity of 12012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12012 trivial. 0 not checked. [2024-11-22 12:03:34,219 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:03:34,219 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [128889725] [2024-11-22 12:03:34,219 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [128889725] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:03:34,219 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:03:34,219 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 12:03:34,220 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [355084461] [2024-11-22 12:03:34,220 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:03:34,221 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 12:03:34,221 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:03:34,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 12:03:34,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 12:03:34,222 INFO L87 Difference]: Start difference. First operand 18643 states and 29621 transitions. Second operand has 4 states, 4 states have (on average 38.75) internal successors, (155), 4 states have internal predecessors, (155), 1 states have call successors, (78), 1 states have call predecessors, (78), 1 states have return successors, (78), 1 states have call predecessors, (78), 1 states have call successors, (78) [2024-11-22 12:03:35,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:03:35,767 INFO L93 Difference]: Finished difference Result 45013 states and 70888 transitions. [2024-11-22 12:03:35,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 12:03:35,768 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 38.75) internal successors, (155), 4 states have internal predecessors, (155), 1 states have call successors, (78), 1 states have call predecessors, (78), 1 states have return successors, (78), 1 states have call predecessors, (78), 1 states have call successors, (78) Word has length 542 [2024-11-22 12:03:35,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:03:35,873 INFO L225 Difference]: With dead ends: 45013 [2024-11-22 12:03:35,873 INFO L226 Difference]: Without dead ends: 26396 [2024-11-22 12:03:35,911 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 12:03:35,912 INFO L432 NwaCegarLoop]: 827 mSDtfsCounter, 545 mSDsluCounter, 989 mSDsCounter, 0 mSdLazyCounter, 216 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 545 SdHoareTripleChecker+Valid, 1816 SdHoareTripleChecker+Invalid, 277 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 216 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-22 12:03:35,912 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [545 Valid, 1816 Invalid, 277 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 216 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-22 12:03:35,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26396 states. [2024-11-22 12:03:36,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26396 to 17129. [2024-11-22 12:03:36,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17129 states, 14962 states have (on average 1.5399679187274429) internal successors, (23041), 15004 states have internal predecessors, (23041), 2044 states have call successors, (2044), 122 states have call predecessors, (2044), 122 states have return successors, (2044), 2002 states have call predecessors, (2044), 2044 states have call successors, (2044) [2024-11-22 12:03:36,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17129 states to 17129 states and 27129 transitions. [2024-11-22 12:03:37,016 INFO L78 Accepts]: Start accepts. Automaton has 17129 states and 27129 transitions. Word has length 542 [2024-11-22 12:03:37,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:03:37,018 INFO L471 AbstractCegarLoop]: Abstraction has 17129 states and 27129 transitions. [2024-11-22 12:03:37,018 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 38.75) internal successors, (155), 4 states have internal predecessors, (155), 1 states have call successors, (78), 1 states have call predecessors, (78), 1 states have return successors, (78), 1 states have call predecessors, (78), 1 states have call successors, (78) [2024-11-22 12:03:37,018 INFO L276 IsEmpty]: Start isEmpty. Operand 17129 states and 27129 transitions. [2024-11-22 12:03:37,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 543 [2024-11-22 12:03:37,038 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:03:37,039 INFO L215 NwaCegarLoop]: trace histogram [78, 78, 78, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:03:37,039 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-22 12:03:37,039 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:03:37,040 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:03:37,040 INFO L85 PathProgramCache]: Analyzing trace with hash 1372188734, now seen corresponding path program 1 times [2024-11-22 12:03:37,040 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:03:37,040 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [982844548] [2024-11-22 12:03:37,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:03:37,040 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:03:37,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:03:39,068 INFO L134 CoverageAnalysis]: Checked inductivity of 12012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12012 trivial. 0 not checked. [2024-11-22 12:03:39,069 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:03:39,069 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [982844548] [2024-11-22 12:03:39,069 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [982844548] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:03:39,069 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:03:39,069 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-22 12:03:39,070 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1717766179] [2024-11-22 12:03:39,070 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:03:39,071 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-22 12:03:39,071 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:03:39,072 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-22 12:03:39,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-22 12:03:39,072 INFO L87 Difference]: Start difference. First operand 17129 states and 27129 transitions. Second operand has 7 states, 7 states have (on average 22.142857142857142) internal successors, (155), 7 states have internal predecessors, (155), 3 states have call successors, (78), 1 states have call predecessors, (78), 1 states have return successors, (78), 3 states have call predecessors, (78), 3 states have call successors, (78) [2024-11-22 12:03:41,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:03:41,663 INFO L93 Difference]: Finished difference Result 55095 states and 87061 transitions. [2024-11-22 12:03:41,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 12:03:41,664 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 22.142857142857142) internal successors, (155), 7 states have internal predecessors, (155), 3 states have call successors, (78), 1 states have call predecessors, (78), 1 states have return successors, (78), 3 states have call predecessors, (78), 3 states have call successors, (78) Word has length 542 [2024-11-22 12:03:41,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:03:41,773 INFO L225 Difference]: With dead ends: 55095 [2024-11-22 12:03:41,773 INFO L226 Difference]: Without dead ends: 37992 [2024-11-22 12:03:41,815 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2024-11-22 12:03:41,816 INFO L432 NwaCegarLoop]: 836 mSDtfsCounter, 954 mSDsluCounter, 2150 mSDsCounter, 0 mSdLazyCounter, 710 mSolverCounterSat, 307 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 954 SdHoareTripleChecker+Valid, 2986 SdHoareTripleChecker+Invalid, 1017 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 307 IncrementalHoareTripleChecker+Valid, 710 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-22 12:03:41,816 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [954 Valid, 2986 Invalid, 1017 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [307 Valid, 710 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-22 12:03:41,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37992 states. [2024-11-22 12:03:43,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37992 to 32631. [2024-11-22 12:03:43,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32631 states, 27896 states have (on average 1.5213650702609693) internal successors, (42440), 27997 states have internal predecessors, (42440), 4450 states have call successors, (4450), 284 states have call predecessors, (4450), 284 states have return successors, (4450), 4349 states have call predecessors, (4450), 4450 states have call successors, (4450) [2024-11-22 12:03:43,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32631 states to 32631 states and 51340 transitions. [2024-11-22 12:03:43,853 INFO L78 Accepts]: Start accepts. Automaton has 32631 states and 51340 transitions. Word has length 542 [2024-11-22 12:03:43,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:03:43,854 INFO L471 AbstractCegarLoop]: Abstraction has 32631 states and 51340 transitions. [2024-11-22 12:03:43,855 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 22.142857142857142) internal successors, (155), 7 states have internal predecessors, (155), 3 states have call successors, (78), 1 states have call predecessors, (78), 1 states have return successors, (78), 3 states have call predecessors, (78), 3 states have call successors, (78) [2024-11-22 12:03:43,855 INFO L276 IsEmpty]: Start isEmpty. Operand 32631 states and 51340 transitions. [2024-11-22 12:03:43,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 543 [2024-11-22 12:03:43,886 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:03:43,887 INFO L215 NwaCegarLoop]: trace histogram [78, 78, 78, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:03:43,887 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-22 12:03:43,887 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:03:43,887 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:03:43,888 INFO L85 PathProgramCache]: Analyzing trace with hash -216159168, now seen corresponding path program 1 times [2024-11-22 12:03:43,888 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:03:43,888 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1732771197] [2024-11-22 12:03:43,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:03:43,888 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:03:44,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:03:45,799 INFO L134 CoverageAnalysis]: Checked inductivity of 12012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12012 trivial. 0 not checked. [2024-11-22 12:03:45,800 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:03:45,800 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1732771197] [2024-11-22 12:03:45,800 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1732771197] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:03:45,800 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:03:45,800 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 12:03:45,800 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1627206507] [2024-11-22 12:03:45,800 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:03:45,801 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 12:03:45,801 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:03:45,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 12:03:45,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-22 12:03:45,803 INFO L87 Difference]: Start difference. First operand 32631 states and 51340 transitions. Second operand has 6 states, 6 states have (on average 25.833333333333332) internal successors, (155), 6 states have internal predecessors, (155), 1 states have call successors, (78), 1 states have call predecessors, (78), 1 states have return successors, (78), 1 states have call predecessors, (78), 1 states have call successors, (78) [2024-11-22 12:03:48,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:03:48,248 INFO L93 Difference]: Finished difference Result 80367 states and 125514 transitions. [2024-11-22 12:03:48,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 12:03:48,249 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 25.833333333333332) internal successors, (155), 6 states have internal predecessors, (155), 1 states have call successors, (78), 1 states have call predecessors, (78), 1 states have return successors, (78), 1 states have call predecessors, (78), 1 states have call successors, (78) Word has length 542 [2024-11-22 12:03:48,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:03:48,411 INFO L225 Difference]: With dead ends: 80367 [2024-11-22 12:03:48,412 INFO L226 Difference]: Without dead ends: 47881 [2024-11-22 12:03:48,486 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2024-11-22 12:03:48,487 INFO L432 NwaCegarLoop]: 664 mSDtfsCounter, 989 mSDsluCounter, 1480 mSDsCounter, 0 mSdLazyCounter, 411 mSolverCounterSat, 120 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 989 SdHoareTripleChecker+Valid, 2144 SdHoareTripleChecker+Invalid, 531 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 120 IncrementalHoareTripleChecker+Valid, 411 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-22 12:03:48,487 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [989 Valid, 2144 Invalid, 531 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [120 Valid, 411 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-22 12:03:48,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47881 states. [2024-11-22 12:03:50,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47881 to 32911. [2024-11-22 12:03:50,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32911 states, 28176 states have (on average 1.5177455990914253) internal successors, (42764), 28277 states have internal predecessors, (42764), 4450 states have call successors, (4450), 284 states have call predecessors, (4450), 284 states have return successors, (4450), 4349 states have call predecessors, (4450), 4450 states have call successors, (4450) [2024-11-22 12:03:50,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32911 states to 32911 states and 51664 transitions. [2024-11-22 12:03:50,830 INFO L78 Accepts]: Start accepts. Automaton has 32911 states and 51664 transitions. Word has length 542 [2024-11-22 12:03:50,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:03:50,831 INFO L471 AbstractCegarLoop]: Abstraction has 32911 states and 51664 transitions. [2024-11-22 12:03:50,832 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 25.833333333333332) internal successors, (155), 6 states have internal predecessors, (155), 1 states have call successors, (78), 1 states have call predecessors, (78), 1 states have return successors, (78), 1 states have call predecessors, (78), 1 states have call successors, (78) [2024-11-22 12:03:50,832 INFO L276 IsEmpty]: Start isEmpty. Operand 32911 states and 51664 transitions. [2024-11-22 12:03:50,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 543 [2024-11-22 12:03:50,852 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:03:50,853 INFO L215 NwaCegarLoop]: trace histogram [78, 78, 78, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:03:50,853 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-22 12:03:50,853 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:03:50,853 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:03:50,854 INFO L85 PathProgramCache]: Analyzing trace with hash -2061526334, now seen corresponding path program 1 times [2024-11-22 12:03:50,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:03:50,854 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1198775006] [2024-11-22 12:03:50,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:03:50,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:03:51,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:03:52,389 INFO L134 CoverageAnalysis]: Checked inductivity of 12012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12012 trivial. 0 not checked. [2024-11-22 12:03:52,389 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:03:52,389 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1198775006] [2024-11-22 12:03:52,389 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1198775006] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:03:52,389 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:03:52,389 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 12:03:52,390 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [921099448] [2024-11-22 12:03:52,390 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:03:52,390 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 12:03:52,390 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:03:52,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 12:03:52,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-22 12:03:52,396 INFO L87 Difference]: Start difference. First operand 32911 states and 51664 transitions. Second operand has 4 states, 4 states have (on average 38.75) internal successors, (155), 4 states have internal predecessors, (155), 1 states have call successors, (78), 1 states have call predecessors, (78), 1 states have return successors, (78), 1 states have call predecessors, (78), 1 states have call successors, (78) [2024-11-22 12:03:54,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:03:54,374 INFO L93 Difference]: Finished difference Result 65075 states and 102134 transitions. [2024-11-22 12:03:54,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 12:03:54,375 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 38.75) internal successors, (155), 4 states have internal predecessors, (155), 1 states have call successors, (78), 1 states have call predecessors, (78), 1 states have return successors, (78), 1 states have call predecessors, (78), 1 states have call successors, (78) Word has length 542 [2024-11-22 12:03:54,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:03:54,478 INFO L225 Difference]: With dead ends: 65075 [2024-11-22 12:03:54,478 INFO L226 Difference]: Without dead ends: 32309 [2024-11-22 12:03:54,530 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 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 12:03:54,531 INFO L432 NwaCegarLoop]: 639 mSDtfsCounter, 618 mSDsluCounter, 515 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 618 SdHoareTripleChecker+Valid, 1154 SdHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-22 12:03:54,531 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [618 Valid, 1154 Invalid, 111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-22 12:03:54,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32309 states. [2024-11-22 12:03:56,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32309 to 31459. [2024-11-22 12:03:56,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31459 states, 27120 states have (on average 1.5160766961651917) internal successors, (41116), 27221 states have internal predecessors, (41116), 4091 states have call successors, (4091), 247 states have call predecessors, (4091), 247 states have return successors, (4091), 3990 states have call predecessors, (4091), 4091 states have call successors, (4091) [2024-11-22 12:03:56,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31459 states to 31459 states and 49298 transitions. [2024-11-22 12:03:56,308 INFO L78 Accepts]: Start accepts. Automaton has 31459 states and 49298 transitions. Word has length 542 [2024-11-22 12:03:56,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:03:56,309 INFO L471 AbstractCegarLoop]: Abstraction has 31459 states and 49298 transitions. [2024-11-22 12:03:56,309 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 38.75) internal successors, (155), 4 states have internal predecessors, (155), 1 states have call successors, (78), 1 states have call predecessors, (78), 1 states have return successors, (78), 1 states have call predecessors, (78), 1 states have call successors, (78) [2024-11-22 12:03:56,310 INFO L276 IsEmpty]: Start isEmpty. Operand 31459 states and 49298 transitions. [2024-11-22 12:03:56,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 544 [2024-11-22 12:03:56,330 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:03:56,331 INFO L215 NwaCegarLoop]: trace histogram [78, 78, 78, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:03:56,331 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-22 12:03:56,331 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:03:56,331 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:03:56,332 INFO L85 PathProgramCache]: Analyzing trace with hash 1324437585, now seen corresponding path program 1 times [2024-11-22 12:03:56,332 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:03:56,332 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1634862078] [2024-11-22 12:03:56,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:03:56,332 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:03:57,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:04:00,611 INFO L134 CoverageAnalysis]: Checked inductivity of 12012 backedges. 63 proven. 168 refuted. 0 times theorem prover too weak. 11781 trivial. 0 not checked. [2024-11-22 12:04:00,611 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:04:00,612 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1634862078] [2024-11-22 12:04:00,612 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1634862078] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 12:04:00,612 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [817948282] [2024-11-22 12:04:00,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:04:00,612 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 12:04:00,613 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 12:04:00,616 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 12:04:00,617 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-22 12:04:01,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:04:01,072 INFO L255 TraceCheckSpWp]: Trace formula consists of 1306 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-22 12:04:01,085 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 12:04:01,554 INFO L134 CoverageAnalysis]: Checked inductivity of 12012 backedges. 6077 proven. 111 refuted. 0 times theorem prover too weak. 5824 trivial. 0 not checked. [2024-11-22 12:04:01,554 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 12:04:02,039 INFO L134 CoverageAnalysis]: Checked inductivity of 12012 backedges. 120 proven. 111 refuted. 0 times theorem prover too weak. 11781 trivial. 0 not checked. [2024-11-22 12:04:02,039 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [817948282] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 12:04:02,039 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 12:04:02,040 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 5, 5] total 16 [2024-11-22 12:04:02,040 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [536281394] [2024-11-22 12:04:02,040 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 12:04:02,044 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-22 12:04:02,044 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:04:02,045 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-22 12:04:02,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=190, Unknown=0, NotChecked=0, Total=240 [2024-11-22 12:04:02,046 INFO L87 Difference]: Start difference. First operand 31459 states and 49298 transitions. Second operand has 16 states, 16 states have (on average 16.625) internal successors, (266), 16 states have internal predecessors, (266), 3 states have call successors, (171), 2 states have call predecessors, (171), 4 states have return successors, (173), 3 states have call predecessors, (173), 3 states have call successors, (173) [2024-11-22 12:04:06,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:04:06,196 INFO L93 Difference]: Finished difference Result 58365 states and 89678 transitions. [2024-11-22 12:04:06,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-11-22 12:04:06,197 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 16.625) internal successors, (266), 16 states have internal predecessors, (266), 3 states have call successors, (171), 2 states have call predecessors, (171), 4 states have return successors, (173), 3 states have call predecessors, (173), 3 states have call successors, (173) Word has length 543 [2024-11-22 12:04:06,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:04:06,286 INFO L225 Difference]: With dead ends: 58365 [2024-11-22 12:04:06,286 INFO L226 Difference]: Without dead ends: 26983 [2024-11-22 12:04:06,340 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1134 GetRequests, 1095 SyntacticMatches, 1 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 339 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=357, Invalid=1203, Unknown=0, NotChecked=0, Total=1560 [2024-11-22 12:04:06,341 INFO L432 NwaCegarLoop]: 559 mSDtfsCounter, 2179 mSDsluCounter, 3151 mSDsCounter, 0 mSdLazyCounter, 2812 mSolverCounterSat, 303 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2180 SdHoareTripleChecker+Valid, 3710 SdHoareTripleChecker+Invalid, 3115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 303 IncrementalHoareTripleChecker+Valid, 2812 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-11-22 12:04:06,341 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2180 Valid, 3710 Invalid, 3115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [303 Valid, 2812 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-11-22 12:04:06,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26983 states. [2024-11-22 12:04:07,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26983 to 9575. [2024-11-22 12:04:07,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9575 states, 7698 states have (on average 1.4408937386334113) internal successors, (11092), 7739 states have internal predecessors, (11092), 1687 states have call successors, (1687), 189 states have call predecessors, (1687), 189 states have return successors, (1687), 1646 states have call predecessors, (1687), 1687 states have call successors, (1687) [2024-11-22 12:04:07,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9575 states to 9575 states and 14466 transitions. [2024-11-22 12:04:07,635 INFO L78 Accepts]: Start accepts. Automaton has 9575 states and 14466 transitions. Word has length 543 [2024-11-22 12:04:07,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:04:07,636 INFO L471 AbstractCegarLoop]: Abstraction has 9575 states and 14466 transitions. [2024-11-22 12:04:07,636 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 16.625) internal successors, (266), 16 states have internal predecessors, (266), 3 states have call successors, (171), 2 states have call predecessors, (171), 4 states have return successors, (173), 3 states have call predecessors, (173), 3 states have call successors, (173) [2024-11-22 12:04:07,637 INFO L276 IsEmpty]: Start isEmpty. Operand 9575 states and 14466 transitions. [2024-11-22 12:04:07,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 544 [2024-11-22 12:04:07,647 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:04:07,647 INFO L215 NwaCegarLoop]: trace histogram [78, 78, 78, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:04:07,661 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-22 12:04:07,848 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-11-22 12:04:07,848 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:04:07,849 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:04:07,849 INFO L85 PathProgramCache]: Analyzing trace with hash 1081934484, now seen corresponding path program 1 times [2024-11-22 12:04:07,849 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:04:07,849 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [788559687] [2024-11-22 12:04:07,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:04:07,849 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:04:08,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:04:08,953 INFO L134 CoverageAnalysis]: Checked inductivity of 12012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12012 trivial. 0 not checked. [2024-11-22 12:04:08,953 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:04:08,953 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [788559687] [2024-11-22 12:04:08,953 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [788559687] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:04:08,953 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:04:08,954 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 12:04:08,954 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [263724836] [2024-11-22 12:04:08,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:04:08,955 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 12:04:08,955 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:04:08,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 12:04:08,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-22 12:04:08,956 INFO L87 Difference]: Start difference. First operand 9575 states and 14466 transitions. Second operand has 4 states, 4 states have (on average 39.0) internal successors, (156), 4 states have internal predecessors, (156), 1 states have call successors, (78), 1 states have call predecessors, (78), 1 states have return successors, (78), 1 states have call predecessors, (78), 1 states have call successors, (78)