./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/seq-mthreaded/pals_opt-floodmax.3.4.ufo.BOUNDED-6.pals.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3061b6dc Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/seq-mthreaded/pals_opt-floodmax.3.4.ufo.BOUNDED-6.pals.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 5a61d3db55f61e1c69c316c83f1e37b4c9c56a755bd5e8fcd2da0d467aefc9f7 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-18 14:45:31,363 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-18 14:45:31,423 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-18 14:45:31,428 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-18 14:45:31,428 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-18 14:45:31,449 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-18 14:45:31,450 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-18 14:45:31,450 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-18 14:45:31,452 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-18 14:45:31,453 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-18 14:45:31,453 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-18 14:45:31,454 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-18 14:45:31,454 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-18 14:45:31,456 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-18 14:45:31,457 INFO L153 SettingsManager]: * Use SBE=true [2024-11-18 14:45:31,457 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-18 14:45:31,457 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-18 14:45:31,457 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-18 14:45:31,458 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-18 14:45:31,458 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-18 14:45:31,458 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-18 14:45:31,458 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-18 14:45:31,459 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-18 14:45:31,459 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-18 14:45:31,460 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-18 14:45:31,460 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-18 14:45:31,460 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-18 14:45:31,460 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-18 14:45:31,460 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-18 14:45:31,461 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-18 14:45:31,461 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-18 14:45:31,461 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-18 14:45:31,461 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 14:45:31,462 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-18 14:45:31,462 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-18 14:45:31,462 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-18 14:45:31,463 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-18 14:45:31,463 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-18 14:45:31,463 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-18 14:45:31,463 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-18 14:45:31,463 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-18 14:45:31,464 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-18 14:45:31,464 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5a61d3db55f61e1c69c316c83f1e37b4c9c56a755bd5e8fcd2da0d467aefc9f7 [2024-11-18 14:45:31,658 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-18 14:45:31,676 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-18 14:45:31,678 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-18 14:45:31,679 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-18 14:45:31,679 INFO L274 PluginConnector]: CDTParser initialized [2024-11-18 14:45:31,680 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded/pals_opt-floodmax.3.4.ufo.BOUNDED-6.pals.c [2024-11-18 14:45:32,965 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-18 14:45:33,158 INFO L384 CDTParser]: Found 1 translation units. [2024-11-18 14:45:33,159 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/pals_opt-floodmax.3.4.ufo.BOUNDED-6.pals.c [2024-11-18 14:45:33,169 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/adf3c48b1/de91551c69114122828bf16a97804575/FLAG58c47d35e [2024-11-18 14:45:33,182 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/adf3c48b1/de91551c69114122828bf16a97804575 [2024-11-18 14:45:33,185 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-18 14:45:33,187 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-18 14:45:33,190 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-18 14:45:33,190 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-18 14:45:33,195 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-18 14:45:33,196 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 02:45:33" (1/1) ... [2024-11-18 14:45:33,196 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4b2d4c5b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:45:33, skipping insertion in model container [2024-11-18 14:45:33,197 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 02:45:33" (1/1) ... [2024-11-18 14:45:33,225 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-18 14:45:33,497 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/seq-mthreaded/pals_opt-floodmax.3.4.ufo.BOUNDED-6.pals.c[14373,14386] [2024-11-18 14:45:33,504 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 14:45:33,514 INFO L200 MainTranslator]: Completed pre-run [2024-11-18 14:45:33,558 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/seq-mthreaded/pals_opt-floodmax.3.4.ufo.BOUNDED-6.pals.c[14373,14386] [2024-11-18 14:45:33,558 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 14:45:33,612 INFO L204 MainTranslator]: Completed translation [2024-11-18 14:45:33,613 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:45:33 WrapperNode [2024-11-18 14:45:33,613 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-18 14:45:33,616 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-18 14:45:33,616 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-18 14:45:33,616 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-18 14:45:33,621 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:45:33" (1/1) ... [2024-11-18 14:45:33,630 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:45:33" (1/1) ... [2024-11-18 14:45:33,655 INFO L138 Inliner]: procedures = 22, calls = 14, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 496 [2024-11-18 14:45:33,655 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-18 14:45:33,656 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-18 14:45:33,656 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-18 14:45:33,656 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-18 14:45:33,666 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:45:33" (1/1) ... [2024-11-18 14:45:33,666 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:45:33" (1/1) ... [2024-11-18 14:45:33,668 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:45:33" (1/1) ... [2024-11-18 14:45:33,692 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]. [2024-11-18 14:45:33,696 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:45:33" (1/1) ... [2024-11-18 14:45:33,696 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:45:33" (1/1) ... [2024-11-18 14:45:33,703 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:45:33" (1/1) ... [2024-11-18 14:45:33,712 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:45:33" (1/1) ... [2024-11-18 14:45:33,713 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:45:33" (1/1) ... [2024-11-18 14:45:33,714 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:45:33" (1/1) ... [2024-11-18 14:45:33,717 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-18 14:45:33,718 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-18 14:45:33,718 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-18 14:45:33,718 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-18 14:45:33,718 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:45:33" (1/1) ... [2024-11-18 14:45:33,731 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 14:45:33,745 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 14:45:33,760 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) [2024-11-18 14:45:33,765 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 [2024-11-18 14:45:33,798 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-18 14:45:33,799 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-18 14:45:33,800 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-18 14:45:33,800 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-18 14:45:33,892 INFO L238 CfgBuilder]: Building ICFG [2024-11-18 14:45:33,897 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-18 14:45:34,321 INFO L? ?]: Removed 48 outVars from TransFormulas that were not future-live. [2024-11-18 14:45:34,321 INFO L287 CfgBuilder]: Performing block encoding [2024-11-18 14:45:34,336 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-18 14:45:34,336 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-18 14:45:34,336 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 02:45:34 BoogieIcfgContainer [2024-11-18 14:45:34,336 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-18 14:45:34,338 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-18 14:45:34,338 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-18 14:45:34,341 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-18 14:45:34,341 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 02:45:33" (1/3) ... [2024-11-18 14:45:34,342 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63338db7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 02:45:34, skipping insertion in model container [2024-11-18 14:45:34,342 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:45:33" (2/3) ... [2024-11-18 14:45:34,343 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63338db7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 02:45:34, skipping insertion in model container [2024-11-18 14:45:34,343 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 02:45:34" (3/3) ... [2024-11-18 14:45:34,344 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_opt-floodmax.3.4.ufo.BOUNDED-6.pals.c [2024-11-18 14:45:34,356 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-18 14:45:34,356 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-18 14:45:34,412 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-18 14:45:34,417 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;@2888be9b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-18 14:45:34,417 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-18 14:45:34,422 INFO L276 IsEmpty]: Start isEmpty. Operand has 131 states, 129 states have (on average 1.7829457364341086) internal successors, (230), 130 states have internal predecessors, (230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:45:34,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2024-11-18 14:45:34,430 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:45:34,430 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:45:34,431 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:45:34,435 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:45:34,435 INFO L85 PathProgramCache]: Analyzing trace with hash -210556357, now seen corresponding path program 1 times [2024-11-18 14:45:34,441 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:45:34,442 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1382112599] [2024-11-18 14:45:34,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:45:34,442 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:45:34,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:45:34,729 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:45:34,732 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:45:34,732 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1382112599] [2024-11-18 14:45:34,733 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1382112599] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:45:34,733 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:45:34,733 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-18 14:45:34,735 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [248023184] [2024-11-18 14:45:34,736 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:45:34,739 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-18 14:45:34,739 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:45:34,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-18 14:45:34,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-18 14:45:34,780 INFO L87 Difference]: Start difference. First operand has 131 states, 129 states have (on average 1.7829457364341086) internal successors, (230), 130 states have internal predecessors, (230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 18.5) internal successors, (37), 2 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:45:34,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:45:34,807 INFO L93 Difference]: Finished difference Result 203 states and 352 transitions. [2024-11-18 14:45:34,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-18 14:45:34,809 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 18.5) internal successors, (37), 2 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2024-11-18 14:45:34,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:45:34,818 INFO L225 Difference]: With dead ends: 203 [2024-11-18 14:45:34,818 INFO L226 Difference]: Without dead ends: 127 [2024-11-18 14:45:34,821 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-18 14:45:34,824 INFO L432 NwaCegarLoop]: 227 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, 227 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 [2024-11-18 14:45:34,824 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 227 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:45:34,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2024-11-18 14:45:34,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 127. [2024-11-18 14:45:34,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 127 states, 126 states have (on average 1.7698412698412698) internal successors, (223), 126 states have internal predecessors, (223), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:45:34,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 223 transitions. [2024-11-18 14:45:34,855 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 223 transitions. Word has length 37 [2024-11-18 14:45:34,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:45:34,856 INFO L471 AbstractCegarLoop]: Abstraction has 127 states and 223 transitions. [2024-11-18 14:45:34,856 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 18.5) internal successors, (37), 2 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:45:34,856 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 223 transitions. [2024-11-18 14:45:34,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2024-11-18 14:45:34,859 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:45:34,859 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:45:34,859 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-18 14:45:34,859 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:45:34,860 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:45:34,860 INFO L85 PathProgramCache]: Analyzing trace with hash -1028204807, now seen corresponding path program 1 times [2024-11-18 14:45:34,860 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:45:34,860 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1910649006] [2024-11-18 14:45:34,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:45:34,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:45:34,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:45:35,109 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:45:35,110 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:45:35,110 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1910649006] [2024-11-18 14:45:35,111 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1910649006] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:45:35,111 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:45:35,111 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 14:45:35,111 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [681461314] [2024-11-18 14:45:35,111 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:45:35,112 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 14:45:35,113 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:45:35,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 14:45:35,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 14:45:35,115 INFO L87 Difference]: Start difference. First operand 127 states and 223 transitions. Second operand has 5 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:45:35,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:45:35,188 INFO L93 Difference]: Finished difference Result 198 states and 342 transitions. [2024-11-18 14:45:35,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 14:45:35,189 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2024-11-18 14:45:35,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:45:35,190 INFO L225 Difference]: With dead ends: 198 [2024-11-18 14:45:35,190 INFO L226 Difference]: Without dead ends: 127 [2024-11-18 14:45:35,191 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 14:45:35,192 INFO L432 NwaCegarLoop]: 221 mSDtfsCounter, 0 mSDsluCounter, 628 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 849 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 14:45:35,192 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 849 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 14:45:35,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2024-11-18 14:45:35,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 127. [2024-11-18 14:45:35,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 127 states, 126 states have (on average 1.5317460317460319) internal successors, (193), 126 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:45:35,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 193 transitions. [2024-11-18 14:45:35,201 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 193 transitions. Word has length 37 [2024-11-18 14:45:35,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:45:35,202 INFO L471 AbstractCegarLoop]: Abstraction has 127 states and 193 transitions. [2024-11-18 14:45:35,202 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:45:35,202 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 193 transitions. [2024-11-18 14:45:35,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-11-18 14:45:35,204 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:45:35,204 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:45:35,204 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-18 14:45:35,205 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:45:35,206 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:45:35,206 INFO L85 PathProgramCache]: Analyzing trace with hash 792730303, now seen corresponding path program 1 times [2024-11-18 14:45:35,206 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:45:35,206 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [523079352] [2024-11-18 14:45:35,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:45:35,206 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:45:35,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:45:35,353 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:45:35,354 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:45:35,354 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [523079352] [2024-11-18 14:45:35,355 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [523079352] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:45:35,355 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:45:35,355 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 14:45:35,355 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [75242551] [2024-11-18 14:45:35,355 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:45:35,356 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 14:45:35,356 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:45:35,357 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 14:45:35,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 14:45:35,359 INFO L87 Difference]: Start difference. First operand 127 states and 193 transitions. Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:45:35,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:45:35,412 INFO L93 Difference]: Finished difference Result 247 states and 397 transitions. [2024-11-18 14:45:35,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 14:45:35,412 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2024-11-18 14:45:35,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:45:35,414 INFO L225 Difference]: With dead ends: 247 [2024-11-18 14:45:35,414 INFO L226 Difference]: Without dead ends: 180 [2024-11-18 14:45:35,415 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 [2024-11-18 14:45:35,415 INFO L432 NwaCegarLoop]: 188 mSDtfsCounter, 89 mSDsluCounter, 142 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 330 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:45:35,416 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [89 Valid, 330 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:45:35,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2024-11-18 14:45:35,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 178. [2024-11-18 14:45:35,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 178 states, 177 states have (on average 1.5593220338983051) internal successors, (276), 177 states have internal predecessors, (276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:45:35,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 276 transitions. [2024-11-18 14:45:35,425 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 276 transitions. Word has length 66 [2024-11-18 14:45:35,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:45:35,425 INFO L471 AbstractCegarLoop]: Abstraction has 178 states and 276 transitions. [2024-11-18 14:45:35,425 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:45:35,425 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 276 transitions. [2024-11-18 14:45:35,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-18 14:45:35,427 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:45:35,427 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:45:35,427 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-18 14:45:35,427 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:45:35,428 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:45:35,428 INFO L85 PathProgramCache]: Analyzing trace with hash 1252750669, now seen corresponding path program 1 times [2024-11-18 14:45:35,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:45:35,428 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [47202285] [2024-11-18 14:45:35,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:45:35,428 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:45:35,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:45:35,536 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:45:35,536 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:45:35,536 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [47202285] [2024-11-18 14:45:35,536 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [47202285] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:45:35,536 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:45:35,537 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 14:45:35,537 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [872627629] [2024-11-18 14:45:35,537 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:45:35,537 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 14:45:35,537 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:45:35,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 14:45:35,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 14:45:35,538 INFO L87 Difference]: Start difference. First operand 178 states and 276 transitions. Second operand has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:45:35,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:45:35,565 INFO L93 Difference]: Finished difference Result 398 states and 644 transitions. [2024-11-18 14:45:35,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 14:45:35,565 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 68 [2024-11-18 14:45:35,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:45:35,567 INFO L225 Difference]: With dead ends: 398 [2024-11-18 14:45:35,567 INFO L226 Difference]: Without dead ends: 280 [2024-11-18 14:45:35,568 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 [2024-11-18 14:45:35,569 INFO L432 NwaCegarLoop]: 191 mSDtfsCounter, 91 mSDsluCounter, 159 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 350 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:45:35,569 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 350 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:45:35,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 280 states. [2024-11-18 14:45:35,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 280 to 278. [2024-11-18 14:45:35,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 278 states, 277 states have (on average 1.5992779783393503) internal successors, (443), 277 states have internal predecessors, (443), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:45:35,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 278 states and 443 transitions. [2024-11-18 14:45:35,586 INFO L78 Accepts]: Start accepts. Automaton has 278 states and 443 transitions. Word has length 68 [2024-11-18 14:45:35,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:45:35,586 INFO L471 AbstractCegarLoop]: Abstraction has 278 states and 443 transitions. [2024-11-18 14:45:35,586 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:45:35,587 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 443 transitions. [2024-11-18 14:45:35,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-18 14:45:35,592 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:45:35,592 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:45:35,593 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-18 14:45:35,593 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:45:35,593 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:45:35,593 INFO L85 PathProgramCache]: Analyzing trace with hash 1185859003, now seen corresponding path program 1 times [2024-11-18 14:45:35,594 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:45:35,594 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [897477328] [2024-11-18 14:45:35,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:45:35,597 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:45:35,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:45:35,715 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:45:35,715 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:45:35,715 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [897477328] [2024-11-18 14:45:35,715 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [897477328] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:45:35,715 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:45:35,716 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 14:45:35,716 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1494895316] [2024-11-18 14:45:35,716 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:45:35,716 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 14:45:35,716 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:45:35,717 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 14:45:35,717 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 14:45:35,719 INFO L87 Difference]: Start difference. First operand 278 states and 443 transitions. Second operand has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:45:35,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:45:35,741 INFO L93 Difference]: Finished difference Result 682 states and 1117 transitions. [2024-11-18 14:45:35,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 14:45:35,743 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 70 [2024-11-18 14:45:35,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:45:35,745 INFO L225 Difference]: With dead ends: 682 [2024-11-18 14:45:35,745 INFO L226 Difference]: Without dead ends: 464 [2024-11-18 14:45:35,746 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 [2024-11-18 14:45:35,750 INFO L432 NwaCegarLoop]: 191 mSDtfsCounter, 85 mSDsluCounter, 160 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 351 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:45:35,750 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 351 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:45:35,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 464 states. [2024-11-18 14:45:35,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 464 to 462. [2024-11-18 14:45:35,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 462 states, 461 states have (on average 1.6203904555314534) internal successors, (747), 461 states have internal predecessors, (747), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:45:35,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 462 states to 462 states and 747 transitions. [2024-11-18 14:45:35,773 INFO L78 Accepts]: Start accepts. Automaton has 462 states and 747 transitions. Word has length 70 [2024-11-18 14:45:35,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:45:35,774 INFO L471 AbstractCegarLoop]: Abstraction has 462 states and 747 transitions. [2024-11-18 14:45:35,774 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:45:35,774 INFO L276 IsEmpty]: Start isEmpty. Operand 462 states and 747 transitions. [2024-11-18 14:45:35,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-11-18 14:45:35,775 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:45:35,775 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:45:35,775 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-18 14:45:35,775 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:45:35,775 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:45:35,775 INFO L85 PathProgramCache]: Analyzing trace with hash -565459959, now seen corresponding path program 1 times [2024-11-18 14:45:35,775 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:45:35,775 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [650680848] [2024-11-18 14:45:35,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:45:35,776 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:45:35,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:45:35,949 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:45:35,949 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:45:35,950 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [650680848] [2024-11-18 14:45:35,950 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [650680848] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:45:35,950 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:45:35,950 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 14:45:35,951 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1646640154] [2024-11-18 14:45:35,951 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:45:35,951 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 14:45:35,951 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:45:35,952 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 14:45:35,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 14:45:35,953 INFO L87 Difference]: Start difference. First operand 462 states and 747 transitions. Second operand has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:45:36,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:45:36,097 INFO L93 Difference]: Finished difference Result 2290 states and 3809 transitions. [2024-11-18 14:45:36,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-18 14:45:36,098 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 72 [2024-11-18 14:45:36,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:45:36,106 INFO L225 Difference]: With dead ends: 2290 [2024-11-18 14:45:36,106 INFO L226 Difference]: Without dead ends: 1888 [2024-11-18 14:45:36,107 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-18 14:45:36,108 INFO L432 NwaCegarLoop]: 187 mSDtfsCounter, 667 mSDsluCounter, 966 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 667 SdHoareTripleChecker+Valid, 1153 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 14:45:36,109 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [667 Valid, 1153 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 14:45:36,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1888 states. [2024-11-18 14:45:36,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1888 to 846. [2024-11-18 14:45:36,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 846 states, 845 states have (on average 1.6366863905325444) internal successors, (1383), 845 states have internal predecessors, (1383), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:45:36,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 846 states to 846 states and 1383 transitions. [2024-11-18 14:45:36,134 INFO L78 Accepts]: Start accepts. Automaton has 846 states and 1383 transitions. Word has length 72 [2024-11-18 14:45:36,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:45:36,134 INFO L471 AbstractCegarLoop]: Abstraction has 846 states and 1383 transitions. [2024-11-18 14:45:36,135 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:45:36,135 INFO L276 IsEmpty]: Start isEmpty. Operand 846 states and 1383 transitions. [2024-11-18 14:45:36,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2024-11-18 14:45:36,135 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:45:36,135 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:45:36,136 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-18 14:45:36,136 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:45:36,139 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:45:36,139 INFO L85 PathProgramCache]: Analyzing trace with hash 2022745121, now seen corresponding path program 1 times [2024-11-18 14:45:36,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:45:36,139 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1562734928] [2024-11-18 14:45:36,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:45:36,139 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:45:36,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:45:36,242 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:45:36,243 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:45:36,243 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1562734928] [2024-11-18 14:45:36,243 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1562734928] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:45:36,244 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:45:36,244 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 14:45:36,244 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1506196363] [2024-11-18 14:45:36,244 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:45:36,245 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 14:45:36,245 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:45:36,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 14:45:36,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 14:45:36,246 INFO L87 Difference]: Start difference. First operand 846 states and 1383 transitions. Second operand has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:45:36,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:45:36,323 INFO L93 Difference]: Finished difference Result 3044 states and 5034 transitions. [2024-11-18 14:45:36,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 14:45:36,324 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 73 [2024-11-18 14:45:36,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:45:36,331 INFO L225 Difference]: With dead ends: 3044 [2024-11-18 14:45:36,331 INFO L226 Difference]: Without dead ends: 2258 [2024-11-18 14:45:36,332 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-18 14:45:36,334 INFO L432 NwaCegarLoop]: 187 mSDtfsCounter, 331 mSDsluCounter, 430 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 331 SdHoareTripleChecker+Valid, 617 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 14:45:36,335 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [331 Valid, 617 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 14:45:36,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2258 states. [2024-11-18 14:45:36,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2258 to 1543. [2024-11-18 14:45:36,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1543 states, 1542 states have (on average 1.638780804150454) internal successors, (2527), 1542 states have internal predecessors, (2527), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:45:36,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1543 states to 1543 states and 2527 transitions. [2024-11-18 14:45:36,365 INFO L78 Accepts]: Start accepts. Automaton has 1543 states and 2527 transitions. Word has length 73 [2024-11-18 14:45:36,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:45:36,365 INFO L471 AbstractCegarLoop]: Abstraction has 1543 states and 2527 transitions. [2024-11-18 14:45:36,366 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:45:36,366 INFO L276 IsEmpty]: Start isEmpty. Operand 1543 states and 2527 transitions. [2024-11-18 14:45:36,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-11-18 14:45:36,367 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:45:36,367 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:45:36,367 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-18 14:45:36,367 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:45:36,368 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:45:36,368 INFO L85 PathProgramCache]: Analyzing trace with hash 482119495, now seen corresponding path program 1 times [2024-11-18 14:45:36,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:45:36,368 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1191832312] [2024-11-18 14:45:36,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:45:36,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:45:36,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:45:36,453 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:45:36,453 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:45:36,453 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1191832312] [2024-11-18 14:45:36,453 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1191832312] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:45:36,453 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:45:36,453 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 14:45:36,453 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1885615137] [2024-11-18 14:45:36,453 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:45:36,454 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 14:45:36,454 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:45:36,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 14:45:36,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 14:45:36,454 INFO L87 Difference]: Start difference. First operand 1543 states and 2527 transitions. Second operand has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:45:36,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:45:36,487 INFO L93 Difference]: Finished difference Result 3037 states and 4986 transitions. [2024-11-18 14:45:36,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 14:45:36,487 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 74 [2024-11-18 14:45:36,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:45:36,493 INFO L225 Difference]: With dead ends: 3037 [2024-11-18 14:45:36,493 INFO L226 Difference]: Without dead ends: 2191 [2024-11-18 14:45:36,495 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 [2024-11-18 14:45:36,495 INFO L432 NwaCegarLoop]: 252 mSDtfsCounter, 92 mSDsluCounter, 168 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 420 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:45:36,495 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 420 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:45:36,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2191 states. [2024-11-18 14:45:36,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2191 to 2189. [2024-11-18 14:45:36,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2189 states, 2188 states have (on average 1.6252285191956124) internal successors, (3556), 2188 states have internal predecessors, (3556), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:45:36,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2189 states to 2189 states and 3556 transitions. [2024-11-18 14:45:36,528 INFO L78 Accepts]: Start accepts. Automaton has 2189 states and 3556 transitions. Word has length 74 [2024-11-18 14:45:36,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:45:36,529 INFO L471 AbstractCegarLoop]: Abstraction has 2189 states and 3556 transitions. [2024-11-18 14:45:36,529 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:45:36,529 INFO L276 IsEmpty]: Start isEmpty. Operand 2189 states and 3556 transitions. [2024-11-18 14:45:36,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-11-18 14:45:36,529 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:45:36,530 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:45:36,530 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-18 14:45:36,530 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:45:36,530 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:45:36,530 INFO L85 PathProgramCache]: Analyzing trace with hash 1535861927, now seen corresponding path program 1 times [2024-11-18 14:45:36,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:45:36,530 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2061794366] [2024-11-18 14:45:36,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:45:36,531 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:45:36,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:45:36,602 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:45:36,603 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:45:36,603 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2061794366] [2024-11-18 14:45:36,603 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2061794366] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:45:36,603 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:45:36,604 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 14:45:36,604 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [112859296] [2024-11-18 14:45:36,604 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:45:36,604 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 14:45:36,604 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:45:36,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 14:45:36,605 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 14:45:36,605 INFO L87 Difference]: Start difference. First operand 2189 states and 3556 transitions. Second operand has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:45:36,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:45:36,654 INFO L93 Difference]: Finished difference Result 4261 states and 6938 transitions. [2024-11-18 14:45:36,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 14:45:36,655 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 74 [2024-11-18 14:45:36,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:45:36,663 INFO L225 Difference]: With dead ends: 4261 [2024-11-18 14:45:36,663 INFO L226 Difference]: Without dead ends: 3073 [2024-11-18 14:45:36,665 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 [2024-11-18 14:45:36,665 INFO L432 NwaCegarLoop]: 240 mSDtfsCounter, 86 mSDsluCounter, 169 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 409 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:45:36,666 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 409 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:45:36,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3073 states. [2024-11-18 14:45:36,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3073 to 3071. [2024-11-18 14:45:36,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3071 states, 3070 states have (on average 1.6104234527687296) internal successors, (4944), 3070 states have internal predecessors, (4944), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:45:36,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3071 states to 3071 states and 4944 transitions. [2024-11-18 14:45:36,718 INFO L78 Accepts]: Start accepts. Automaton has 3071 states and 4944 transitions. Word has length 74 [2024-11-18 14:45:36,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:45:36,719 INFO L471 AbstractCegarLoop]: Abstraction has 3071 states and 4944 transitions. [2024-11-18 14:45:36,719 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:45:36,719 INFO L276 IsEmpty]: Start isEmpty. Operand 3071 states and 4944 transitions. [2024-11-18 14:45:36,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-11-18 14:45:36,719 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:45:36,719 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:45:36,719 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-18 14:45:36,720 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:45:36,720 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:45:36,720 INFO L85 PathProgramCache]: Analyzing trace with hash 821728320, now seen corresponding path program 1 times [2024-11-18 14:45:36,720 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:45:36,720 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1536814697] [2024-11-18 14:45:36,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:45:36,720 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:45:36,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:45:36,807 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:45:36,807 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:45:36,807 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1536814697] [2024-11-18 14:45:36,807 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1536814697] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:45:36,808 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:45:36,808 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 14:45:36,808 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1621838609] [2024-11-18 14:45:36,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:45:36,808 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 14:45:36,808 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:45:36,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 14:45:36,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 14:45:36,809 INFO L87 Difference]: Start difference. First operand 3071 states and 4944 transitions. Second operand has 4 states, 4 states have (on average 18.5) internal successors, (74), 4 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:45:36,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:45:36,916 INFO L93 Difference]: Finished difference Result 9776 states and 15807 transitions. [2024-11-18 14:45:36,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 14:45:36,917 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.5) internal successors, (74), 4 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 74 [2024-11-18 14:45:36,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:45:36,936 INFO L225 Difference]: With dead ends: 9776 [2024-11-18 14:45:36,936 INFO L226 Difference]: Without dead ends: 6823 [2024-11-18 14:45:36,942 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-18 14:45:36,942 INFO L432 NwaCegarLoop]: 182 mSDtfsCounter, 330 mSDsluCounter, 432 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 330 SdHoareTripleChecker+Valid, 614 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:45:36,942 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [330 Valid, 614 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:45:36,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6823 states. [2024-11-18 14:45:37,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6823 to 4923. [2024-11-18 14:45:37,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4923 states, 4922 states have (on average 1.5997561966680212) internal successors, (7874), 4922 states have internal predecessors, (7874), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:45:37,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4923 states to 4923 states and 7874 transitions. [2024-11-18 14:45:37,057 INFO L78 Accepts]: Start accepts. Automaton has 4923 states and 7874 transitions. Word has length 74 [2024-11-18 14:45:37,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:45:37,058 INFO L471 AbstractCegarLoop]: Abstraction has 4923 states and 7874 transitions. [2024-11-18 14:45:37,058 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.5) internal successors, (74), 4 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:45:37,058 INFO L276 IsEmpty]: Start isEmpty. Operand 4923 states and 7874 transitions. [2024-11-18 14:45:37,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-11-18 14:45:37,059 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:45:37,059 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:45:37,059 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-18 14:45:37,059 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:45:37,060 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:45:37,060 INFO L85 PathProgramCache]: Analyzing trace with hash 1254834663, now seen corresponding path program 1 times [2024-11-18 14:45:37,060 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:45:37,060 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [709462737] [2024-11-18 14:45:37,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:45:37,060 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:45:37,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:45:37,113 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:45:37,113 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:45:37,113 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [709462737] [2024-11-18 14:45:37,114 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [709462737] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:45:37,114 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:45:37,114 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 14:45:37,114 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1194423543] [2024-11-18 14:45:37,114 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:45:37,114 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 14:45:37,114 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:45:37,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 14:45:37,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 14:45:37,115 INFO L87 Difference]: Start difference. First operand 4923 states and 7874 transitions. Second operand has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:45:37,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:45:37,239 INFO L93 Difference]: Finished difference Result 11800 states and 18979 transitions. [2024-11-18 14:45:37,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 14:45:37,240 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 74 [2024-11-18 14:45:37,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:45:37,261 INFO L225 Difference]: With dead ends: 11800 [2024-11-18 14:45:37,261 INFO L226 Difference]: Without dead ends: 6955 [2024-11-18 14:45:37,269 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 [2024-11-18 14:45:37,270 INFO L432 NwaCegarLoop]: 270 mSDtfsCounter, 98 mSDsluCounter, 167 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 437 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:45:37,270 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [98 Valid, 437 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:45:37,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6955 states. [2024-11-18 14:45:37,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6955 to 6953. [2024-11-18 14:45:37,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6953 states, 6952 states have (on average 1.6039988492520139) internal successors, (11151), 6952 states have internal predecessors, (11151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:45:37,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6953 states to 6953 states and 11151 transitions. [2024-11-18 14:45:37,437 INFO L78 Accepts]: Start accepts. Automaton has 6953 states and 11151 transitions. Word has length 74 [2024-11-18 14:45:37,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:45:37,437 INFO L471 AbstractCegarLoop]: Abstraction has 6953 states and 11151 transitions. [2024-11-18 14:45:37,438 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:45:37,438 INFO L276 IsEmpty]: Start isEmpty. Operand 6953 states and 11151 transitions. [2024-11-18 14:45:37,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-11-18 14:45:37,438 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:45:37,439 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:45:37,439 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-18 14:45:37,439 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:45:37,439 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:45:37,439 INFO L85 PathProgramCache]: Analyzing trace with hash -1881049800, now seen corresponding path program 1 times [2024-11-18 14:45:37,439 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:45:37,440 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [965713415] [2024-11-18 14:45:37,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:45:37,440 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:45:37,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:45:37,537 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:45:37,537 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:45:37,538 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [965713415] [2024-11-18 14:45:37,538 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [965713415] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:45:37,538 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:45:37,538 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 14:45:37,538 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1431988960] [2024-11-18 14:45:37,538 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:45:37,539 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 14:45:37,539 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:45:37,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 14:45:37,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 14:45:37,539 INFO L87 Difference]: Start difference. First operand 6953 states and 11151 transitions. Second operand has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:45:37,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:45:37,763 INFO L93 Difference]: Finished difference Result 22120 states and 35544 transitions. [2024-11-18 14:45:37,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 14:45:37,763 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 75 [2024-11-18 14:45:37,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:45:37,793 INFO L225 Difference]: With dead ends: 22120 [2024-11-18 14:45:37,793 INFO L226 Difference]: Without dead ends: 15245 [2024-11-18 14:45:37,803 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-18 14:45:37,804 INFO L432 NwaCegarLoop]: 182 mSDtfsCounter, 328 mSDsluCounter, 434 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 328 SdHoareTripleChecker+Valid, 616 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 14:45:37,804 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [328 Valid, 616 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 14:45:37,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15245 states. [2024-11-18 14:45:38,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15245 to 11046. [2024-11-18 14:45:38,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11046 states, 11045 states have (on average 1.5905839746491626) internal successors, (17568), 11045 states have internal predecessors, (17568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:45:38,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11046 states to 11046 states and 17568 transitions. [2024-11-18 14:45:38,108 INFO L78 Accepts]: Start accepts. Automaton has 11046 states and 17568 transitions. Word has length 75 [2024-11-18 14:45:38,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:45:38,109 INFO L471 AbstractCegarLoop]: Abstraction has 11046 states and 17568 transitions. [2024-11-18 14:45:38,109 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:45:38,109 INFO L276 IsEmpty]: Start isEmpty. Operand 11046 states and 17568 transitions. [2024-11-18 14:45:38,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-18 14:45:38,110 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:45:38,110 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:45:38,110 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-18 14:45:38,110 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:45:38,110 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:45:38,111 INFO L85 PathProgramCache]: Analyzing trace with hash -1635147248, now seen corresponding path program 1 times [2024-11-18 14:45:38,111 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:45:38,111 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1813887459] [2024-11-18 14:45:38,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:45:38,111 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:45:38,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:45:38,269 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:45:38,270 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:45:38,270 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1813887459] [2024-11-18 14:45:38,270 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1813887459] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:45:38,270 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:45:38,270 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 14:45:38,270 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1616985506] [2024-11-18 14:45:38,271 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:45:38,271 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 14:45:38,271 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:45:38,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 14:45:38,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-18 14:45:38,272 INFO L87 Difference]: Start difference. First operand 11046 states and 17568 transitions. Second operand has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:45:38,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:45:38,443 INFO L93 Difference]: Finished difference Result 22016 states and 35033 transitions. [2024-11-18 14:45:38,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 14:45:38,444 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2024-11-18 14:45:38,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:45:38,464 INFO L225 Difference]: With dead ends: 22016 [2024-11-18 14:45:38,464 INFO L226 Difference]: Without dead ends: 11048 [2024-11-18 14:45:38,542 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2024-11-18 14:45:38,549 INFO L432 NwaCegarLoop]: 188 mSDtfsCounter, 171 mSDsluCounter, 320 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 171 SdHoareTripleChecker+Valid, 508 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:45:38,549 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [171 Valid, 508 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:45:38,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11048 states. [2024-11-18 14:45:38,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11048 to 11046. [2024-11-18 14:45:38,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11046 states, 11045 states have (on average 1.5770031688546853) internal successors, (17418), 11045 states have internal predecessors, (17418), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:45:38,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11046 states to 11046 states and 17418 transitions. [2024-11-18 14:45:38,731 INFO L78 Accepts]: Start accepts. Automaton has 11046 states and 17418 transitions. Word has length 77 [2024-11-18 14:45:38,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:45:38,731 INFO L471 AbstractCegarLoop]: Abstraction has 11046 states and 17418 transitions. [2024-11-18 14:45:38,732 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:45:38,732 INFO L276 IsEmpty]: Start isEmpty. Operand 11046 states and 17418 transitions. [2024-11-18 14:45:38,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-11-18 14:45:38,733 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:45:38,733 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:45:38,733 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-18 14:45:38,734 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:45:38,734 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:45:38,735 INFO L85 PathProgramCache]: Analyzing trace with hash -1744604605, now seen corresponding path program 1 times [2024-11-18 14:45:38,735 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:45:38,735 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [951565972] [2024-11-18 14:45:38,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:45:38,735 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:45:38,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:45:38,974 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:45:38,974 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:45:38,974 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [951565972] [2024-11-18 14:45:38,974 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [951565972] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:45:38,975 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:45:38,975 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 14:45:38,975 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [296377020] [2024-11-18 14:45:38,975 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:45:38,975 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 14:45:38,976 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:45:38,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 14:45:38,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-18 14:45:38,976 INFO L87 Difference]: Start difference. First operand 11046 states and 17418 transitions. Second operand has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:45:39,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:45:39,280 INFO L93 Difference]: Finished difference Result 31861 states and 50385 transitions. [2024-11-18 14:45:39,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 14:45:39,281 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2024-11-18 14:45:39,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:45:39,322 INFO L225 Difference]: With dead ends: 31861 [2024-11-18 14:45:39,322 INFO L226 Difference]: Without dead ends: 20893 [2024-11-18 14:45:39,343 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2024-11-18 14:45:39,344 INFO L432 NwaCegarLoop]: 183 mSDtfsCounter, 84 mSDsluCounter, 495 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 678 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 14:45:39,344 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 678 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 14:45:39,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20893 states. [2024-11-18 14:45:39,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20893 to 20891. [2024-11-18 14:45:39,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20891 states, 20890 states have (on average 1.5632359980852082) internal successors, (32656), 20890 states have internal predecessors, (32656), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:45:39,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20891 states to 20891 states and 32656 transitions. [2024-11-18 14:45:39,742 INFO L78 Accepts]: Start accepts. Automaton has 20891 states and 32656 transitions. Word has length 80 [2024-11-18 14:45:39,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:45:39,743 INFO L471 AbstractCegarLoop]: Abstraction has 20891 states and 32656 transitions. [2024-11-18 14:45:39,743 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:45:39,743 INFO L276 IsEmpty]: Start isEmpty. Operand 20891 states and 32656 transitions. [2024-11-18 14:45:39,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-18 14:45:39,744 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:45:39,744 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:45:39,744 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-18 14:45:39,744 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:45:39,745 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:45:39,745 INFO L85 PathProgramCache]: Analyzing trace with hash 1323256441, now seen corresponding path program 1 times [2024-11-18 14:45:39,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:45:39,745 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2014881624] [2024-11-18 14:45:39,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:45:39,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:45:39,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:45:39,990 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:45:39,991 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:45:39,991 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2014881624] [2024-11-18 14:45:39,991 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2014881624] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:45:39,991 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:45:39,991 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-18 14:45:39,991 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [6201649] [2024-11-18 14:45:39,991 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:45:39,992 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-18 14:45:39,992 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:45:39,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-18 14:45:39,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-18 14:45:39,993 INFO L87 Difference]: Start difference. First operand 20891 states and 32656 transitions. Second operand has 8 states, 8 states have (on average 10.125) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:45:40,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:45:40,224 INFO L93 Difference]: Finished difference Result 22054 states and 34205 transitions. [2024-11-18 14:45:40,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-18 14:45:40,224 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.125) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2024-11-18 14:45:40,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:45:40,264 INFO L225 Difference]: With dead ends: 22054 [2024-11-18 14:45:40,264 INFO L226 Difference]: Without dead ends: 22052 [2024-11-18 14:45:40,273 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-18 14:45:40,274 INFO L432 NwaCegarLoop]: 187 mSDtfsCounter, 0 mSDsluCounter, 1104 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1291 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 14:45:40,274 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1291 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 14:45:40,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22052 states. [2024-11-18 14:45:40,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22052 to 22052. [2024-11-18 14:45:40,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22052 states, 22051 states have (on average 1.5331730987256813) internal successors, (33808), 22051 states have internal predecessors, (33808), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:45:40,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22052 states to 22052 states and 33808 transitions. [2024-11-18 14:45:40,658 INFO L78 Accepts]: Start accepts. Automaton has 22052 states and 33808 transitions. Word has length 81 [2024-11-18 14:45:40,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:45:40,658 INFO L471 AbstractCegarLoop]: Abstraction has 22052 states and 33808 transitions. [2024-11-18 14:45:40,658 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.125) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:45:40,658 INFO L276 IsEmpty]: Start isEmpty. Operand 22052 states and 33808 transitions. [2024-11-18 14:45:40,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-18 14:45:40,660 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:45:40,660 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:45:40,660 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-18 14:45:40,660 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:45:40,660 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:45:40,661 INFO L85 PathProgramCache]: Analyzing trace with hash -1301469614, now seen corresponding path program 1 times [2024-11-18 14:45:40,661 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:45:40,661 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [289659961] [2024-11-18 14:45:40,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:45:40,661 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:45:40,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:45:40,776 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-18 14:45:40,776 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:45:40,776 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [289659961] [2024-11-18 14:45:40,776 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [289659961] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:45:40,776 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:45:40,776 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 14:45:40,777 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1129714083] [2024-11-18 14:45:40,777 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:45:40,777 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 14:45:40,777 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:45:40,778 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 14:45:40,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-18 14:45:40,778 INFO L87 Difference]: Start difference. First operand 22052 states and 33808 transitions. Second operand has 5 states, 5 states have (on average 20.0) internal successors, (100), 5 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:45:41,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:45:41,325 INFO L93 Difference]: Finished difference Result 55228 states and 84835 transitions. [2024-11-18 14:45:41,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 14:45:41,326 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.0) internal successors, (100), 5 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 107 [2024-11-18 14:45:41,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:45:41,415 INFO L225 Difference]: With dead ends: 55228 [2024-11-18 14:45:41,416 INFO L226 Difference]: Without dead ends: 45002 [2024-11-18 14:45:41,438 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-11-18 14:45:41,439 INFO L432 NwaCegarLoop]: 294 mSDtfsCounter, 415 mSDsluCounter, 511 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 415 SdHoareTripleChecker+Valid, 805 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:45:41,439 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [415 Valid, 805 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:45:41,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45002 states. [2024-11-18 14:45:42,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45002 to 34652. [2024-11-18 14:45:42,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34652 states, 34651 states have (on average 1.5287581887968602) internal successors, (52973), 34651 states have internal predecessors, (52973), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:45:42,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34652 states to 34652 states and 52973 transitions. [2024-11-18 14:45:42,183 INFO L78 Accepts]: Start accepts. Automaton has 34652 states and 52973 transitions. Word has length 107 [2024-11-18 14:45:42,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:45:42,184 INFO L471 AbstractCegarLoop]: Abstraction has 34652 states and 52973 transitions. [2024-11-18 14:45:42,184 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.0) internal successors, (100), 5 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:45:42,184 INFO L276 IsEmpty]: Start isEmpty. Operand 34652 states and 52973 transitions. [2024-11-18 14:45:42,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-18 14:45:42,185 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:45:42,185 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:45:42,186 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-18 14:45:42,186 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:45:42,186 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:45:42,186 INFO L85 PathProgramCache]: Analyzing trace with hash -247727182, now seen corresponding path program 1 times [2024-11-18 14:45:42,186 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:45:42,186 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [310713122] [2024-11-18 14:45:42,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:45:42,187 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:45:42,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:45:42,294 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-18 14:45:42,294 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:45:42,294 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [310713122] [2024-11-18 14:45:42,295 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [310713122] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:45:42,295 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:45:42,295 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 14:45:42,295 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1378051935] [2024-11-18 14:45:42,295 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:45:42,296 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 14:45:42,296 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:45:42,296 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 14:45:42,296 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-18 14:45:42,297 INFO L87 Difference]: Start difference. First operand 34652 states and 52973 transitions. Second operand has 5 states, 5 states have (on average 18.8) internal successors, (94), 5 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:45:42,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:45:42,788 INFO L93 Difference]: Finished difference Result 59356 states and 91187 transitions. [2024-11-18 14:45:42,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 14:45:42,789 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.8) internal successors, (94), 5 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 107 [2024-11-18 14:45:42,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:45:42,873 INFO L225 Difference]: With dead ends: 59356 [2024-11-18 14:45:42,874 INFO L226 Difference]: Without dead ends: 49130 [2024-11-18 14:45:42,901 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-11-18 14:45:42,903 INFO L432 NwaCegarLoop]: 294 mSDtfsCounter, 420 mSDsluCounter, 565 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 420 SdHoareTripleChecker+Valid, 859 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 14:45:42,903 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [420 Valid, 859 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 14:45:42,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49130 states. [2024-11-18 14:45:43,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49130 to 47052. [2024-11-18 14:45:43,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47052 states, 47051 states have (on average 1.5290429533910013) internal successors, (71943), 47051 states have internal predecessors, (71943), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:45:43,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47052 states to 47052 states and 71943 transitions. [2024-11-18 14:45:43,871 INFO L78 Accepts]: Start accepts. Automaton has 47052 states and 71943 transitions. Word has length 107 [2024-11-18 14:45:43,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:45:43,872 INFO L471 AbstractCegarLoop]: Abstraction has 47052 states and 71943 transitions. [2024-11-18 14:45:43,872 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.8) internal successors, (94), 5 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:45:43,874 INFO L276 IsEmpty]: Start isEmpty. Operand 47052 states and 71943 transitions. [2024-11-18 14:45:43,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-18 14:45:43,876 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:45:43,876 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:45:43,876 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-18 14:45:43,877 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:45:43,877 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:45:43,877 INFO L85 PathProgramCache]: Analyzing trace with hash -528754446, now seen corresponding path program 1 times [2024-11-18 14:45:43,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:45:43,878 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2022495330] [2024-11-18 14:45:43,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:45:43,878 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:45:43,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:45:43,999 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-18 14:45:43,999 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:45:43,999 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2022495330] [2024-11-18 14:45:43,999 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2022495330] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:45:43,999 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:45:44,000 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 14:45:44,000 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [417254880] [2024-11-18 14:45:44,000 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:45:44,000 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 14:45:44,000 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:45:44,001 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 14:45:44,001 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-18 14:45:44,001 INFO L87 Difference]: Start difference. First operand 47052 states and 71943 transitions. Second operand has 5 states, 5 states have (on average 21.2) internal successors, (106), 5 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:45:44,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:45:44,620 INFO L93 Difference]: Finished difference Result 70034 states and 107626 transitions. [2024-11-18 14:45:44,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 14:45:44,621 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 5 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 107 [2024-11-18 14:45:44,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:45:44,811 INFO L225 Difference]: With dead ends: 70034 [2024-11-18 14:45:44,811 INFO L226 Difference]: Without dead ends: 57322 [2024-11-18 14:45:44,837 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-11-18 14:45:44,837 INFO L432 NwaCegarLoop]: 286 mSDtfsCounter, 412 mSDsluCounter, 596 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 412 SdHoareTripleChecker+Valid, 882 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 14:45:44,838 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [412 Valid, 882 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 14:45:44,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57322 states. [2024-11-18 14:45:45,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57322 to 55244. [2024-11-18 14:45:45,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55244 states, 55243 states have (on average 1.5307097731839328) internal successors, (84561), 55243 states have internal predecessors, (84561), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:45:45,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55244 states to 55244 states and 84561 transitions. [2024-11-18 14:45:45,866 INFO L78 Accepts]: Start accepts. Automaton has 55244 states and 84561 transitions. Word has length 107 [2024-11-18 14:45:45,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:45:45,866 INFO L471 AbstractCegarLoop]: Abstraction has 55244 states and 84561 transitions. [2024-11-18 14:45:45,867 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 5 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:45:45,867 INFO L276 IsEmpty]: Start isEmpty. Operand 55244 states and 84561 transitions. [2024-11-18 14:45:45,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-18 14:45:45,869 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:45:45,869 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:45:45,869 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-18 14:45:45,869 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:45:45,870 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:45:45,870 INFO L85 PathProgramCache]: Analyzing trace with hash -1134351272, now seen corresponding path program 1 times [2024-11-18 14:45:45,870 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:45:45,870 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1580181146] [2024-11-18 14:45:45,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:45:45,871 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:45:45,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:45:45,988 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-18 14:45:45,988 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:45:45,988 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1580181146] [2024-11-18 14:45:45,988 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1580181146] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:45:45,988 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:45:45,988 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 14:45:45,988 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2129643345] [2024-11-18 14:45:45,988 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:45:45,989 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 14:45:45,989 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:45:45,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 14:45:45,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-18 14:45:45,989 INFO L87 Difference]: Start difference. First operand 55244 states and 84561 transitions. Second operand has 4 states, 4 states have (on average 26.75) internal successors, (107), 4 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:45:46,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:45:46,804 INFO L93 Difference]: Finished difference Result 94923 states and 145879 transitions. [2024-11-18 14:45:46,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 14:45:46,804 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 26.75) internal successors, (107), 4 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2024-11-18 14:45:46,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:45:46,932 INFO L225 Difference]: With dead ends: 94923 [2024-11-18 14:45:46,933 INFO L226 Difference]: Without dead ends: 74019 [2024-11-18 14:45:46,968 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-18 14:45:46,970 INFO L432 NwaCegarLoop]: 292 mSDtfsCounter, 171 mSDsluCounter, 351 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 171 SdHoareTripleChecker+Valid, 643 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 14:45:46,970 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [171 Valid, 643 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 14:45:47,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74019 states. [2024-11-18 14:45:48,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74019 to 71943. [2024-11-18 14:45:48,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71943 states, 71942 states have (on average 1.528411776153012) internal successors, (109957), 71942 states have internal predecessors, (109957), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:45:48,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71943 states to 71943 states and 109957 transitions. [2024-11-18 14:45:48,274 INFO L78 Accepts]: Start accepts. Automaton has 71943 states and 109957 transitions. Word has length 108 [2024-11-18 14:45:48,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:45:48,274 INFO L471 AbstractCegarLoop]: Abstraction has 71943 states and 109957 transitions. [2024-11-18 14:45:48,274 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.75) internal successors, (107), 4 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:45:48,275 INFO L276 IsEmpty]: Start isEmpty. Operand 71943 states and 109957 transitions. [2024-11-18 14:45:48,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-18 14:45:48,277 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:45:48,277 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:45:48,277 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-18 14:45:48,277 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:45:48,277 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:45:48,277 INFO L85 PathProgramCache]: Analyzing trace with hash -711649446, now seen corresponding path program 1 times [2024-11-18 14:45:48,278 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:45:48,278 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1976217984] [2024-11-18 14:45:48,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:45:48,278 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:45:48,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:45:48,523 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-18 14:45:48,523 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:45:48,523 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1976217984] [2024-11-18 14:45:48,523 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1976217984] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:45:48,523 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:45:48,524 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 14:45:48,524 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1346749696] [2024-11-18 14:45:48,524 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:45:48,524 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 14:45:48,526 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:45:48,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 14:45:48,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 14:45:48,527 INFO L87 Difference]: Start difference. First operand 71943 states and 109957 transitions. Second operand has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:45:49,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:45:49,555 INFO L93 Difference]: Finished difference Result 164712 states and 252064 transitions. [2024-11-18 14:45:49,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 14:45:49,556 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2024-11-18 14:45:49,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:45:49,748 INFO L225 Difference]: With dead ends: 164712 [2024-11-18 14:45:49,748 INFO L226 Difference]: Without dead ends: 127064 [2024-11-18 14:45:49,777 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 [2024-11-18 14:45:49,778 INFO L432 NwaCegarLoop]: 189 mSDtfsCounter, 74 mSDsluCounter, 161 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 350 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:45:49,780 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 350 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:45:49,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127064 states. [2024-11-18 14:45:51,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127064 to 126786. [2024-11-18 14:45:52,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 126786 states, 126785 states have (on average 1.5255984540757976) internal successors, (193423), 126785 states have internal predecessors, (193423), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:45:52,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126786 states to 126786 states and 193423 transitions. [2024-11-18 14:45:52,207 INFO L78 Accepts]: Start accepts. Automaton has 126786 states and 193423 transitions. Word has length 108 [2024-11-18 14:45:52,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:45:52,207 INFO L471 AbstractCegarLoop]: Abstraction has 126786 states and 193423 transitions. [2024-11-18 14:45:52,207 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:45:52,207 INFO L276 IsEmpty]: Start isEmpty. Operand 126786 states and 193423 transitions. [2024-11-18 14:45:52,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-18 14:45:52,209 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:45:52,209 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:45:52,210 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-18 14:45:52,210 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:45:52,210 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:45:52,210 INFO L85 PathProgramCache]: Analyzing trace with hash -1394779984, now seen corresponding path program 1 times [2024-11-18 14:45:52,210 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:45:52,210 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1781363864] [2024-11-18 14:45:52,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:45:52,210 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:45:52,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:45:52,305 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:45:52,305 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:45:52,305 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1781363864] [2024-11-18 14:45:52,305 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1781363864] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:45:52,306 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:45:52,306 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 14:45:52,306 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [808044423] [2024-11-18 14:45:52,306 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:45:52,307 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 14:45:52,307 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:45:52,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 14:45:52,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 14:45:52,308 INFO L87 Difference]: Start difference. First operand 126786 states and 193423 transitions. Second operand has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:45:54,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:45:54,107 INFO L93 Difference]: Finished difference Result 252504 states and 385751 transitions. [2024-11-18 14:45:54,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 14:45:54,108 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2024-11-18 14:45:54,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:45:54,353 INFO L225 Difference]: With dead ends: 252504 [2024-11-18 14:45:54,353 INFO L226 Difference]: Without dead ends: 125796 [2024-11-18 14:45:54,437 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 [2024-11-18 14:45:54,438 INFO L432 NwaCegarLoop]: 239 mSDtfsCounter, 74 mSDsluCounter, 173 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 412 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:45:54,438 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 412 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:45:54,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125796 states. [2024-11-18 14:45:56,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125796 to 119053. [2024-11-18 14:45:56,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119053 states, 119052 states have (on average 1.5350435103988174) internal successors, (182750), 119052 states have internal predecessors, (182750), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:45:56,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119053 states to 119053 states and 182750 transitions. [2024-11-18 14:45:56,909 INFO L78 Accepts]: Start accepts. Automaton has 119053 states and 182750 transitions. Word has length 109 [2024-11-18 14:45:56,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:45:56,910 INFO L471 AbstractCegarLoop]: Abstraction has 119053 states and 182750 transitions. [2024-11-18 14:45:56,910 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:45:56,910 INFO L276 IsEmpty]: Start isEmpty. Operand 119053 states and 182750 transitions. [2024-11-18 14:45:56,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-18 14:45:56,911 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:45:56,911 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:45:56,912 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-18 14:45:56,912 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:45:56,912 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:45:56,912 INFO L85 PathProgramCache]: Analyzing trace with hash 313571736, now seen corresponding path program 1 times [2024-11-18 14:45:56,912 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:45:56,912 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [511182903] [2024-11-18 14:45:56,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:45:56,912 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:45:56,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:45:56,955 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:45:56,955 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:45:56,955 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [511182903] [2024-11-18 14:45:56,955 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [511182903] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:45:56,955 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:45:56,955 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 14:45:56,956 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [923665238] [2024-11-18 14:45:56,956 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:45:56,956 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 14:45:56,956 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:45:56,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 14:45:56,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 14:45:56,957 INFO L87 Difference]: Start difference. First operand 119053 states and 182750 transitions. Second operand has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:45:59,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:45:59,413 INFO L93 Difference]: Finished difference Result 354366 states and 542720 transitions. [2024-11-18 14:45:59,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 14:45:59,415 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2024-11-18 14:45:59,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:45:59,881 INFO L225 Difference]: With dead ends: 354366 [2024-11-18 14:45:59,882 INFO L226 Difference]: Without dead ends: 235391 [2024-11-18 14:45:59,969 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 [2024-11-18 14:45:59,969 INFO L432 NwaCegarLoop]: 275 mSDtfsCounter, 144 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 460 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:45:59,970 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [144 Valid, 460 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:46:00,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 235391 states. [2024-11-18 14:46:03,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 235391 to 235389. [2024-11-18 14:46:04,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 235389 states, 235388 states have (on average 1.5182209798290482) internal successors, (357371), 235388 states have internal predecessors, (357371), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:46:04,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 235389 states to 235389 states and 357371 transitions. [2024-11-18 14:46:04,975 INFO L78 Accepts]: Start accepts. Automaton has 235389 states and 357371 transitions. Word has length 109 [2024-11-18 14:46:04,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:46:04,975 INFO L471 AbstractCegarLoop]: Abstraction has 235389 states and 357371 transitions. [2024-11-18 14:46:04,976 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:46:04,976 INFO L276 IsEmpty]: Start isEmpty. Operand 235389 states and 357371 transitions. [2024-11-18 14:46:04,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-18 14:46:04,979 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:46:04,979 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:46:04,979 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-18 14:46:04,980 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:46:04,980 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:46:04,980 INFO L85 PathProgramCache]: Analyzing trace with hash 1396379120, now seen corresponding path program 1 times [2024-11-18 14:46:04,980 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:46:04,981 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1874905956] [2024-11-18 14:46:04,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:46:04,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:46:05,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:46:05,129 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:46:05,129 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:46:05,129 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1874905956] [2024-11-18 14:46:05,129 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1874905956] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:46:05,130 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:46:05,130 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 14:46:05,130 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1482289732] [2024-11-18 14:46:05,130 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:46:05,130 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 14:46:05,130 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:46:05,131 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 14:46:05,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 14:46:05,131 INFO L87 Difference]: Start difference. First operand 235389 states and 357371 transitions. Second operand has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:46:06,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:46:06,556 INFO L93 Difference]: Finished difference Result 335200 states and 508756 transitions. [2024-11-18 14:46:06,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 14:46:06,556 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2024-11-18 14:46:06,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:46:06,765 INFO L225 Difference]: With dead ends: 335200 [2024-11-18 14:46:06,765 INFO L226 Difference]: Without dead ends: 99954 [2024-11-18 14:46:06,885 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 [2024-11-18 14:46:06,886 INFO L432 NwaCegarLoop]: 223 mSDtfsCounter, 58 mSDsluCounter, 158 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 381 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:46:06,886 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 381 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:46:06,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99954 states. [2024-11-18 14:46:09,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99954 to 99671. [2024-11-18 14:46:09,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99671 states, 99670 states have (on average 1.508026487408448) internal successors, (150305), 99670 states have internal predecessors, (150305), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:46:09,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99671 states to 99671 states and 150305 transitions. [2024-11-18 14:46:09,259 INFO L78 Accepts]: Start accepts. Automaton has 99671 states and 150305 transitions. Word has length 109 [2024-11-18 14:46:09,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:46:09,260 INFO L471 AbstractCegarLoop]: Abstraction has 99671 states and 150305 transitions. [2024-11-18 14:46:09,260 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:46:09,260 INFO L276 IsEmpty]: Start isEmpty. Operand 99671 states and 150305 transitions. [2024-11-18 14:46:09,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-18 14:46:09,262 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:46:09,262 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:46:09,262 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-18 14:46:09,262 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:46:09,262 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:46:09,262 INFO L85 PathProgramCache]: Analyzing trace with hash -1844845744, now seen corresponding path program 1 times [2024-11-18 14:46:09,263 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:46:09,263 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2043321464] [2024-11-18 14:46:09,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:46:09,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:46:09,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:46:09,335 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:46:09,335 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:46:09,335 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2043321464] [2024-11-18 14:46:09,335 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2043321464] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:46:09,335 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:46:09,335 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 14:46:09,335 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1553218696] [2024-11-18 14:46:09,335 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:46:09,336 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 14:46:09,336 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:46:09,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 14:46:09,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 14:46:09,336 INFO L87 Difference]: Start difference. First operand 99671 states and 150305 transitions. Second operand has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:46:09,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:46:09,811 INFO L93 Difference]: Finished difference Result 141578 states and 213508 transitions. [2024-11-18 14:46:09,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 14:46:09,811 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2024-11-18 14:46:09,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:46:09,879 INFO L225 Difference]: With dead ends: 141578 [2024-11-18 14:46:09,879 INFO L226 Difference]: Without dead ends: 42052 [2024-11-18 14:46:09,940 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 [2024-11-18 14:46:09,941 INFO L432 NwaCegarLoop]: 210 mSDtfsCounter, 45 mSDsluCounter, 146 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 356 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:46:09,941 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 356 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:46:09,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42052 states. [2024-11-18 14:46:10,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42052 to 41961. [2024-11-18 14:46:10,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41961 states, 41960 states have (on average 1.4994518589132506) internal successors, (62917), 41960 states have internal predecessors, (62917), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:46:10,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41961 states to 41961 states and 62917 transitions. [2024-11-18 14:46:10,833 INFO L78 Accepts]: Start accepts. Automaton has 41961 states and 62917 transitions. Word has length 109 [2024-11-18 14:46:10,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:46:10,833 INFO L471 AbstractCegarLoop]: Abstraction has 41961 states and 62917 transitions. [2024-11-18 14:46:10,833 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:46:10,833 INFO L276 IsEmpty]: Start isEmpty. Operand 41961 states and 62917 transitions. [2024-11-18 14:46:10,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-11-18 14:46:10,835 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:46:10,835 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:46:10,835 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-18 14:46:10,835 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:46:10,835 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:46:10,836 INFO L85 PathProgramCache]: Analyzing trace with hash -734383299, now seen corresponding path program 1 times [2024-11-18 14:46:10,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:46:10,836 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1266474737] [2024-11-18 14:46:10,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:46:10,836 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:46:10,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:46:11,032 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-18 14:46:11,032 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:46:11,032 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1266474737] [2024-11-18 14:46:11,032 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1266474737] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:46:11,032 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:46:11,032 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 14:46:11,032 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [337633122] [2024-11-18 14:46:11,032 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:46:11,033 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 14:46:11,033 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:46:11,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 14:46:11,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 14:46:11,033 INFO L87 Difference]: Start difference. First operand 41961 states and 62917 transitions. Second operand has 4 states, 4 states have (on average 27.0) internal successors, (108), 4 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:46:11,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:46:11,999 INFO L93 Difference]: Finished difference Result 105714 states and 157985 transitions. [2024-11-18 14:46:12,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 14:46:12,001 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.0) internal successors, (108), 4 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 110 [2024-11-18 14:46:12,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:46:12,138 INFO L225 Difference]: With dead ends: 105714 [2024-11-18 14:46:12,138 INFO L226 Difference]: Without dead ends: 79346 [2024-11-18 14:46:12,180 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 [2024-11-18 14:46:12,180 INFO L432 NwaCegarLoop]: 239 mSDtfsCounter, 284 mSDsluCounter, 308 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 284 SdHoareTripleChecker+Valid, 547 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:46:12,180 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [284 Valid, 547 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:46:12,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79346 states. [2024-11-18 14:46:13,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79346 to 66540. [2024-11-18 14:46:13,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66540 states, 66539 states have (on average 1.4978583988337666) internal successors, (99666), 66539 states have internal predecessors, (99666), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:46:13,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66540 states to 66540 states and 99666 transitions. [2024-11-18 14:46:13,621 INFO L78 Accepts]: Start accepts. Automaton has 66540 states and 99666 transitions. Word has length 110 [2024-11-18 14:46:13,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:46:13,622 INFO L471 AbstractCegarLoop]: Abstraction has 66540 states and 99666 transitions. [2024-11-18 14:46:13,622 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.0) internal successors, (108), 4 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:46:13,622 INFO L276 IsEmpty]: Start isEmpty. Operand 66540 states and 99666 transitions. [2024-11-18 14:46:13,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-11-18 14:46:13,623 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:46:13,623 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:46:13,624 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-18 14:46:13,624 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:46:13,624 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:46:13,624 INFO L85 PathProgramCache]: Analyzing trace with hash -774421790, now seen corresponding path program 1 times [2024-11-18 14:46:13,624 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:46:13,625 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [515710] [2024-11-18 14:46:13,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:46:13,625 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:46:13,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:46:14,128 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-18 14:46:14,129 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:46:14,129 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [515710] [2024-11-18 14:46:14,129 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [515710] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:46:14,129 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:46:14,129 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 14:46:14,129 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [844922669] [2024-11-18 14:46:14,129 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:46:14,130 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 14:46:14,130 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:46:14,131 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 14:46:14,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 14:46:14,131 INFO L87 Difference]: Start difference. First operand 66540 states and 99666 transitions. Second operand has 4 states, 4 states have (on average 26.75) internal successors, (107), 4 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:46:15,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:46:15,362 INFO L93 Difference]: Finished difference Result 162884 states and 243459 transitions. [2024-11-18 14:46:15,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 14:46:15,363 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 26.75) internal successors, (107), 4 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 110 [2024-11-18 14:46:15,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:46:15,576 INFO L225 Difference]: With dead ends: 162884 [2024-11-18 14:46:15,576 INFO L226 Difference]: Without dead ends: 122992 [2024-11-18 14:46:15,612 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 [2024-11-18 14:46:15,613 INFO L432 NwaCegarLoop]: 229 mSDtfsCounter, 295 mSDsluCounter, 310 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 295 SdHoareTripleChecker+Valid, 539 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:46:15,613 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [295 Valid, 539 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:46:15,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122992 states.