./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/pals_lcr.5.ufo.BOUNDED-10.pals.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 84cfde4a Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/pals_lcr.5.ufo.BOUNDED-10.pals.c -s /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-clean/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 f7497e4203b86f15acb74ef94ae3bce6255aa8233294110bb99f24cde0725dc7 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-84cfde4 [2024-10-11 03:23:25,184 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-11 03:23:25,256 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-11 03:23:25,263 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-11 03:23:25,264 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-11 03:23:25,296 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-11 03:23:25,297 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-11 03:23:25,297 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-11 03:23:25,298 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-11 03:23:25,302 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-11 03:23:25,302 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-11 03:23:25,303 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-11 03:23:25,303 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-11 03:23:25,303 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-11 03:23:25,304 INFO L153 SettingsManager]: * Use SBE=true [2024-10-11 03:23:25,304 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-11 03:23:25,304 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-11 03:23:25,304 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-11 03:23:25,305 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-11 03:23:25,305 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-11 03:23:25,305 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-11 03:23:25,306 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-11 03:23:25,306 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-11 03:23:25,306 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-11 03:23:25,307 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-11 03:23:25,307 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-11 03:23:25,307 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-11 03:23:25,308 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-11 03:23:25,308 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-11 03:23:25,308 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-11 03:23:25,308 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-11 03:23:25,309 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-11 03:23:25,309 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 03:23:25,309 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-11 03:23:25,310 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-11 03:23:25,310 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-11 03:23:25,310 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-11 03:23:25,310 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-11 03:23:25,311 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-11 03:23:25,311 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-11 03:23:25,311 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-11 03:23:25,312 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-11 03:23:25,312 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-clean/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f7497e4203b86f15acb74ef94ae3bce6255aa8233294110bb99f24cde0725dc7 [2024-10-11 03:23:25,584 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-11 03:23:25,609 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-11 03:23:25,614 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-11 03:23:25,615 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-11 03:23:25,616 INFO L274 PluginConnector]: CDTParser initialized [2024-10-11 03:23:25,617 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/pals_lcr.5.ufo.BOUNDED-10.pals.c [2024-10-11 03:23:27,160 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-11 03:23:27,396 INFO L384 CDTParser]: Found 1 translation units. [2024-10-11 03:23:27,397 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/pals_lcr.5.ufo.BOUNDED-10.pals.c [2024-10-11 03:23:27,413 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/2d8c1b074/1f6aecfb436747558a5de4fb5a539a31/FLAGd39952c99 [2024-10-11 03:23:27,429 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/2d8c1b074/1f6aecfb436747558a5de4fb5a539a31 [2024-10-11 03:23:27,433 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-11 03:23:27,434 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-11 03:23:27,437 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-11 03:23:27,437 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-11 03:23:27,442 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-11 03:23:27,443 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 03:23:27" (1/1) ... [2024-10-11 03:23:27,446 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3a76e14d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:23:27, skipping insertion in model container [2024-10-11 03:23:27,446 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 03:23:27" (1/1) ... [2024-10-11 03:23:27,481 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-11 03:23:27,711 WARN L248 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_lcr.5.ufo.BOUNDED-10.pals.c[11233,11246] [2024-10-11 03:23:27,716 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 03:23:27,726 INFO L200 MainTranslator]: Completed pre-run [2024-10-11 03:23:27,808 WARN L248 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_lcr.5.ufo.BOUNDED-10.pals.c[11233,11246] [2024-10-11 03:23:27,808 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 03:23:27,845 INFO L204 MainTranslator]: Completed translation [2024-10-11 03:23:27,846 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:23:27 WrapperNode [2024-10-11 03:23:27,846 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-11 03:23:27,850 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-11 03:23:27,851 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-11 03:23:27,851 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-11 03:23:27,856 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:23:27" (1/1) ... [2024-10-11 03:23:27,864 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:23:27" (1/1) ... [2024-10-11 03:23:27,893 INFO L138 Inliner]: procedures = 24, calls = 16, calls flagged for inlining = 11, calls inlined = 11, statements flattened = 338 [2024-10-11 03:23:27,893 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-11 03:23:27,894 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-11 03:23:27,894 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-11 03:23:27,894 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-11 03:23:27,909 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:23:27" (1/1) ... [2024-10-11 03:23:27,909 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:23:27" (1/1) ... [2024-10-11 03:23:27,913 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:23:27" (1/1) ... [2024-10-11 03:23:27,927 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]. [2024-10-11 03:23:27,927 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:23:27" (1/1) ... [2024-10-11 03:23:27,928 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:23:27" (1/1) ... [2024-10-11 03:23:27,934 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:23:27" (1/1) ... [2024-10-11 03:23:27,939 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:23:27" (1/1) ... [2024-10-11 03:23:27,941 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:23:27" (1/1) ... [2024-10-11 03:23:27,942 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:23:27" (1/1) ... [2024-10-11 03:23:27,945 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-11 03:23:27,946 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-11 03:23:27,947 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-11 03:23:27,947 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-11 03:23:27,948 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:23:27" (1/1) ... [2024-10-11 03:23:27,959 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 03:23:27,972 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 03:23:27,988 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-11 03:23:27,991 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-11 03:23:28,033 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-11 03:23:28,033 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-11 03:23:28,034 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-11 03:23:28,034 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-11 03:23:28,119 INFO L238 CfgBuilder]: Building ICFG [2024-10-11 03:23:28,121 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-11 03:23:28,530 INFO L? ?]: Removed 40 outVars from TransFormulas that were not future-live. [2024-10-11 03:23:28,530 INFO L287 CfgBuilder]: Performing block encoding [2024-10-11 03:23:28,569 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-11 03:23:28,571 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-11 03:23:28,571 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 03:23:28 BoogieIcfgContainer [2024-10-11 03:23:28,572 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-11 03:23:28,573 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-11 03:23:28,574 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-11 03:23:28,577 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-11 03:23:28,577 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 03:23:27" (1/3) ... [2024-10-11 03:23:28,578 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d5b4d25 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 03:23:28, skipping insertion in model container [2024-10-11 03:23:28,579 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:23:27" (2/3) ... [2024-10-11 03:23:28,579 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d5b4d25 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 03:23:28, skipping insertion in model container [2024-10-11 03:23:28,580 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 03:23:28" (3/3) ... [2024-10-11 03:23:28,581 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.5.ufo.BOUNDED-10.pals.c [2024-10-11 03:23:28,597 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-11 03:23:28,598 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-11 03:23:28,663 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-11 03:23:28,672 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;@29ae5fc2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-11 03:23:28,673 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-11 03:23:28,677 INFO L276 IsEmpty]: Start isEmpty. Operand has 78 states, 76 states have (on average 1.8026315789473684) internal successors, (137), 77 states have internal predecessors, (137), 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) [2024-10-11 03:23:28,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-10-11 03:23:28,682 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:23:28,683 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] [2024-10-11 03:23:28,683 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:23:28,688 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:23:28,688 INFO L85 PathProgramCache]: Analyzing trace with hash -936899003, now seen corresponding path program 1 times [2024-10-11 03:23:28,697 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:23:28,697 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [286897649] [2024-10-11 03:23:28,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:23:28,698 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:23:28,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:23:28,902 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:23:28,903 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:23:28,903 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [286897649] [2024-10-11 03:23:28,904 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [286897649] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:23:28,904 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:23:28,904 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 03:23:28,905 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2098922874] [2024-10-11 03:23:28,906 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:23:28,909 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-11 03:23:28,910 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:23:28,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-11 03:23:28,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-11 03:23:28,929 INFO L87 Difference]: Start difference. First operand has 78 states, 76 states have (on average 1.8026315789473684) internal successors, (137), 77 states have internal predecessors, (137), 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 10.0) internal successors, (20), 2 states have internal predecessors, (20), 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) [2024-10-11 03:23:28,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:23:28,966 INFO L93 Difference]: Finished difference Result 122 states and 208 transitions. [2024-10-11 03:23:28,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-11 03:23:28,971 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 10.0) internal successors, (20), 2 states have internal predecessors, (20), 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 20 [2024-10-11 03:23:28,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:23:28,980 INFO L225 Difference]: With dead ends: 122 [2024-10-11 03:23:28,980 INFO L226 Difference]: Without dead ends: 76 [2024-10-11 03:23:28,984 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 [2024-10-11 03:23:28,989 INFO L432 NwaCegarLoop]: 130 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 130 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 03:23:28,991 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 130 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 03:23:29,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2024-10-11 03:23:29,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 76. [2024-10-11 03:23:29,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 75 states have (on average 1.76) internal successors, (132), 75 states have internal predecessors, (132), 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) [2024-10-11 03:23:29,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 132 transitions. [2024-10-11 03:23:29,023 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 132 transitions. Word has length 20 [2024-10-11 03:23:29,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:23:29,023 INFO L471 AbstractCegarLoop]: Abstraction has 76 states and 132 transitions. [2024-10-11 03:23:29,024 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 10.0) internal successors, (20), 2 states have internal predecessors, (20), 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) [2024-10-11 03:23:29,024 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 132 transitions. [2024-10-11 03:23:29,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-10-11 03:23:29,025 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:23:29,025 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] [2024-10-11 03:23:29,025 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-11 03:23:29,025 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:23:29,026 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:23:29,026 INFO L85 PathProgramCache]: Analyzing trace with hash 1769720391, now seen corresponding path program 1 times [2024-10-11 03:23:29,026 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:23:29,027 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1230280194] [2024-10-11 03:23:29,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:23:29,027 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:23:29,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:23:29,244 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:23:29,245 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:23:29,245 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1230280194] [2024-10-11 03:23:29,245 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1230280194] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:23:29,245 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:23:29,245 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 03:23:29,245 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [700151579] [2024-10-11 03:23:29,246 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:23:29,247 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 03:23:29,247 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:23:29,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 03:23:29,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 03:23:29,249 INFO L87 Difference]: Start difference. First operand 76 states and 132 transitions. Second operand has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 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) [2024-10-11 03:23:29,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:23:29,358 INFO L93 Difference]: Finished difference Result 120 states and 201 transitions. [2024-10-11 03:23:29,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 03:23:29,363 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 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 20 [2024-10-11 03:23:29,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:23:29,364 INFO L225 Difference]: With dead ends: 120 [2024-10-11 03:23:29,364 INFO L226 Difference]: Without dead ends: 76 [2024-10-11 03:23:29,365 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 03:23:29,366 INFO L432 NwaCegarLoop]: 129 mSDtfsCounter, 0 mSDsluCounter, 224 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 353 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 03:23:29,366 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 353 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 03:23:29,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2024-10-11 03:23:29,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 76. [2024-10-11 03:23:29,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 75 states have (on average 1.3466666666666667) internal successors, (101), 75 states have internal predecessors, (101), 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) [2024-10-11 03:23:29,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 101 transitions. [2024-10-11 03:23:29,377 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 101 transitions. Word has length 20 [2024-10-11 03:23:29,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:23:29,377 INFO L471 AbstractCegarLoop]: Abstraction has 76 states and 101 transitions. [2024-10-11 03:23:29,377 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 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) [2024-10-11 03:23:29,377 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 101 transitions. [2024-10-11 03:23:29,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2024-10-11 03:23:29,380 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:23:29,380 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] [2024-10-11 03:23:29,380 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-11 03:23:29,381 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:23:29,381 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:23:29,381 INFO L85 PathProgramCache]: Analyzing trace with hash -1805949634, now seen corresponding path program 1 times [2024-10-11 03:23:29,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:23:29,381 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [135549059] [2024-10-11 03:23:29,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:23:29,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:23:29,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:23:29,645 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:23:29,647 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:23:29,647 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [135549059] [2024-10-11 03:23:29,648 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [135549059] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:23:29,648 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:23:29,649 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-11 03:23:29,649 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1107196633] [2024-10-11 03:23:29,649 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:23:29,650 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 03:23:29,650 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:23:29,650 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 03:23:29,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-11 03:23:29,652 INFO L87 Difference]: Start difference. First operand 76 states and 101 transitions. Second operand has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 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) [2024-10-11 03:23:29,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:23:29,968 INFO L93 Difference]: Finished difference Result 486 states and 761 transitions. [2024-10-11 03:23:29,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-11 03:23:29,969 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 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 50 [2024-10-11 03:23:29,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:23:29,976 INFO L225 Difference]: With dead ends: 486 [2024-10-11 03:23:29,976 INFO L226 Difference]: Without dead ends: 445 [2024-10-11 03:23:29,977 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2024-10-11 03:23:29,978 INFO L432 NwaCegarLoop]: 94 mSDtfsCounter, 743 mSDsluCounter, 1167 mSDsCounter, 0 mSdLazyCounter, 163 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 743 SdHoareTripleChecker+Valid, 1261 SdHoareTripleChecker+Invalid, 166 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-11 03:23:29,978 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [743 Valid, 1261 Invalid, 166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 163 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-11 03:23:29,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 445 states. [2024-10-11 03:23:30,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 445 to 115. [2024-10-11 03:23:30,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115 states, 114 states have (on average 1.4385964912280702) internal successors, (164), 114 states have internal predecessors, (164), 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) [2024-10-11 03:23:30,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 164 transitions. [2024-10-11 03:23:30,015 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 164 transitions. Word has length 50 [2024-10-11 03:23:30,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:23:30,016 INFO L471 AbstractCegarLoop]: Abstraction has 115 states and 164 transitions. [2024-10-11 03:23:30,016 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 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) [2024-10-11 03:23:30,016 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 164 transitions. [2024-10-11 03:23:30,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2024-10-11 03:23:30,017 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:23:30,018 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] [2024-10-11 03:23:30,018 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-11 03:23:30,018 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:23:30,019 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:23:30,019 INFO L85 PathProgramCache]: Analyzing trace with hash -1110513490, now seen corresponding path program 1 times [2024-10-11 03:23:30,019 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:23:30,019 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1141074722] [2024-10-11 03:23:30,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:23:30,020 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:23:30,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:23:30,137 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:23:30,137 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:23:30,137 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1141074722] [2024-10-11 03:23:30,137 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1141074722] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:23:30,137 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:23:30,138 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 03:23:30,138 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [67465849] [2024-10-11 03:23:30,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:23:30,138 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 03:23:30,139 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:23:30,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 03:23:30,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 03:23:30,139 INFO L87 Difference]: Start difference. First operand 115 states and 164 transitions. Second operand has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 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) [2024-10-11 03:23:30,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:23:30,168 INFO L93 Difference]: Finished difference Result 264 states and 403 transitions. [2024-10-11 03:23:30,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 03:23:30,169 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 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 52 [2024-10-11 03:23:30,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:23:30,171 INFO L225 Difference]: With dead ends: 264 [2024-10-11 03:23:30,172 INFO L226 Difference]: Without dead ends: 184 [2024-10-11 03:23:30,174 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 [2024-10-11 03:23:30,175 INFO L432 NwaCegarLoop]: 96 mSDtfsCounter, 42 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 156 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 03:23:30,179 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 156 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 03:23:30,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states. [2024-10-11 03:23:30,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 182. [2024-10-11 03:23:30,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 182 states, 181 states have (on average 1.4917127071823204) internal successors, (270), 181 states have internal predecessors, (270), 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) [2024-10-11 03:23:30,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 270 transitions. [2024-10-11 03:23:30,202 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 270 transitions. Word has length 52 [2024-10-11 03:23:30,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:23:30,202 INFO L471 AbstractCegarLoop]: Abstraction has 182 states and 270 transitions. [2024-10-11 03:23:30,203 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 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) [2024-10-11 03:23:30,203 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 270 transitions. [2024-10-11 03:23:30,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2024-10-11 03:23:30,209 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:23:30,209 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] [2024-10-11 03:23:30,209 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-11 03:23:30,209 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:23:30,210 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:23:30,210 INFO L85 PathProgramCache]: Analyzing trace with hash -1108368538, now seen corresponding path program 1 times [2024-10-11 03:23:30,210 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:23:30,211 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1844214271] [2024-10-11 03:23:30,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:23:30,212 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:23:30,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:23:30,585 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:23:30,586 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:23:30,586 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1844214271] [2024-10-11 03:23:30,586 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1844214271] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:23:30,587 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:23:30,587 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-11 03:23:30,588 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [27783673] [2024-10-11 03:23:30,588 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:23:30,589 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 03:23:30,589 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:23:30,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 03:23:30,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-10-11 03:23:30,592 INFO L87 Difference]: Start difference. First operand 182 states and 270 transitions. Second operand has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 7 states have internal predecessors, (52), 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) [2024-10-11 03:23:30,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:23:30,771 INFO L93 Difference]: Finished difference Result 331 states and 506 transitions. [2024-10-11 03:23:30,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-11 03:23:30,772 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 7 states have internal predecessors, (52), 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 52 [2024-10-11 03:23:30,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:23:30,773 INFO L225 Difference]: With dead ends: 331 [2024-10-11 03:23:30,775 INFO L226 Difference]: Without dead ends: 184 [2024-10-11 03:23:30,775 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2024-10-11 03:23:30,776 INFO L432 NwaCegarLoop]: 91 mSDtfsCounter, 204 mSDsluCounter, 245 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 204 SdHoareTripleChecker+Valid, 336 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 03:23:30,780 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [204 Valid, 336 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 03:23:30,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states. [2024-10-11 03:23:30,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 182. [2024-10-11 03:23:30,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 182 states, 181 states have (on average 1.4806629834254144) internal successors, (268), 181 states have internal predecessors, (268), 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) [2024-10-11 03:23:30,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 268 transitions. [2024-10-11 03:23:30,794 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 268 transitions. Word has length 52 [2024-10-11 03:23:30,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:23:30,794 INFO L471 AbstractCegarLoop]: Abstraction has 182 states and 268 transitions. [2024-10-11 03:23:30,795 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 7 states have internal predecessors, (52), 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) [2024-10-11 03:23:30,795 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 268 transitions. [2024-10-11 03:23:30,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2024-10-11 03:23:30,796 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:23:30,796 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] [2024-10-11 03:23:30,796 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-11 03:23:30,800 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:23:30,801 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:23:30,801 INFO L85 PathProgramCache]: Analyzing trace with hash -13730052, now seen corresponding path program 1 times [2024-10-11 03:23:30,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:23:30,801 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [453764827] [2024-10-11 03:23:30,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:23:30,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:23:30,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:23:31,027 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:23:31,028 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:23:31,028 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [453764827] [2024-10-11 03:23:31,028 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [453764827] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:23:31,028 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:23:31,028 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 03:23:31,028 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1262759517] [2024-10-11 03:23:31,029 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:23:31,029 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 03:23:31,029 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:23:31,029 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 03:23:31,030 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 03:23:31,030 INFO L87 Difference]: Start difference. First operand 182 states and 268 transitions. Second operand has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 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) [2024-10-11 03:23:31,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:23:31,055 INFO L93 Difference]: Finished difference Result 188 states and 275 transitions. [2024-10-11 03:23:31,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 03:23:31,056 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 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 53 [2024-10-11 03:23:31,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:23:31,057 INFO L225 Difference]: With dead ends: 188 [2024-10-11 03:23:31,059 INFO L226 Difference]: Without dead ends: 186 [2024-10-11 03:23:31,059 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 03:23:31,060 INFO L432 NwaCegarLoop]: 97 mSDtfsCounter, 0 mSDsluCounter, 186 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 283 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 03:23:31,062 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 283 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 03:23:31,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 186 states. [2024-10-11 03:23:31,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 186 to 186. [2024-10-11 03:23:31,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 186 states, 185 states have (on average 1.4648648648648648) internal successors, (271), 185 states have internal predecessors, (271), 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) [2024-10-11 03:23:31,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 271 transitions. [2024-10-11 03:23:31,074 INFO L78 Accepts]: Start accepts. Automaton has 186 states and 271 transitions. Word has length 53 [2024-10-11 03:23:31,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:23:31,075 INFO L471 AbstractCegarLoop]: Abstraction has 186 states and 271 transitions. [2024-10-11 03:23:31,075 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 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) [2024-10-11 03:23:31,075 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 271 transitions. [2024-10-11 03:23:31,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2024-10-11 03:23:31,078 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:23:31,078 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] [2024-10-11 03:23:31,078 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-11 03:23:31,078 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:23:31,079 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:23:31,079 INFO L85 PathProgramCache]: Analyzing trace with hash -1384081850, now seen corresponding path program 1 times [2024-10-11 03:23:31,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:23:31,079 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [615130109] [2024-10-11 03:23:31,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:23:31,080 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:23:31,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:23:31,167 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:23:31,169 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:23:31,169 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [615130109] [2024-10-11 03:23:31,169 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [615130109] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:23:31,170 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:23:31,170 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 03:23:31,170 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [921418877] [2024-10-11 03:23:31,170 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:23:31,170 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 03:23:31,171 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:23:31,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 03:23:31,173 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 03:23:31,173 INFO L87 Difference]: Start difference. First operand 186 states and 271 transitions. Second operand has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 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) [2024-10-11 03:23:31,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:23:31,195 INFO L93 Difference]: Finished difference Result 348 states and 524 transitions. [2024-10-11 03:23:31,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 03:23:31,195 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 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 54 [2024-10-11 03:23:31,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:23:31,197 INFO L225 Difference]: With dead ends: 348 [2024-10-11 03:23:31,197 INFO L226 Difference]: Without dead ends: 264 [2024-10-11 03:23:31,198 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 [2024-10-11 03:23:31,199 INFO L432 NwaCegarLoop]: 148 mSDtfsCounter, 56 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 214 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 03:23:31,202 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 214 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 03:23:31,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 264 states. [2024-10-11 03:23:31,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 264 to 262. [2024-10-11 03:23:31,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 262 states, 261 states have (on average 1.4865900383141764) internal successors, (388), 261 states have internal predecessors, (388), 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) [2024-10-11 03:23:31,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 262 states to 262 states and 388 transitions. [2024-10-11 03:23:31,216 INFO L78 Accepts]: Start accepts. Automaton has 262 states and 388 transitions. Word has length 54 [2024-10-11 03:23:31,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:23:31,216 INFO L471 AbstractCegarLoop]: Abstraction has 262 states and 388 transitions. [2024-10-11 03:23:31,216 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 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) [2024-10-11 03:23:31,216 INFO L276 IsEmpty]: Start isEmpty. Operand 262 states and 388 transitions. [2024-10-11 03:23:31,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2024-10-11 03:23:31,217 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:23:31,217 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] [2024-10-11 03:23:31,217 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-11 03:23:31,218 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:23:31,218 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:23:31,218 INFO L85 PathProgramCache]: Analyzing trace with hash -1612721082, now seen corresponding path program 1 times [2024-10-11 03:23:31,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:23:31,218 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1834466965] [2024-10-11 03:23:31,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:23:31,219 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:23:31,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:23:31,294 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:23:31,295 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:23:31,295 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1834466965] [2024-10-11 03:23:31,295 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1834466965] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:23:31,295 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:23:31,295 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 03:23:31,295 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1591360615] [2024-10-11 03:23:31,295 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:23:31,296 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 03:23:31,296 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:23:31,296 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 03:23:31,296 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 03:23:31,297 INFO L87 Difference]: Start difference. First operand 262 states and 388 transitions. Second operand has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 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) [2024-10-11 03:23:31,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:23:31,325 INFO L93 Difference]: Finished difference Result 688 states and 1048 transitions. [2024-10-11 03:23:31,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 03:23:31,326 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 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 54 [2024-10-11 03:23:31,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:23:31,330 INFO L225 Difference]: With dead ends: 688 [2024-10-11 03:23:31,331 INFO L226 Difference]: Without dead ends: 463 [2024-10-11 03:23:31,331 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 [2024-10-11 03:23:31,333 INFO L432 NwaCegarLoop]: 140 mSDtfsCounter, 52 mSDsluCounter, 74 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 214 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 03:23:31,334 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 214 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 03:23:31,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 463 states. [2024-10-11 03:23:31,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 463 to 461. [2024-10-11 03:23:31,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 461 states, 460 states have (on average 1.5) internal successors, (690), 460 states have internal predecessors, (690), 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) [2024-10-11 03:23:31,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 461 states to 461 states and 690 transitions. [2024-10-11 03:23:31,354 INFO L78 Accepts]: Start accepts. Automaton has 461 states and 690 transitions. Word has length 54 [2024-10-11 03:23:31,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:23:31,356 INFO L471 AbstractCegarLoop]: Abstraction has 461 states and 690 transitions. [2024-10-11 03:23:31,356 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 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) [2024-10-11 03:23:31,356 INFO L276 IsEmpty]: Start isEmpty. Operand 461 states and 690 transitions. [2024-10-11 03:23:31,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2024-10-11 03:23:31,357 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:23:31,357 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] [2024-10-11 03:23:31,357 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-11 03:23:31,357 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:23:31,358 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:23:31,358 INFO L85 PathProgramCache]: Analyzing trace with hash 2056590150, now seen corresponding path program 1 times [2024-10-11 03:23:31,358 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:23:31,358 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [798657985] [2024-10-11 03:23:31,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:23:31,358 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:23:31,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:23:31,459 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:23:31,460 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:23:31,460 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [798657985] [2024-10-11 03:23:31,460 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [798657985] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:23:31,460 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:23:31,460 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 03:23:31,460 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1217299845] [2024-10-11 03:23:31,460 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:23:31,461 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 03:23:31,461 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:23:31,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 03:23:31,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 03:23:31,461 INFO L87 Difference]: Start difference. First operand 461 states and 690 transitions. Second operand has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 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) [2024-10-11 03:23:31,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:23:31,502 INFO L93 Difference]: Finished difference Result 1261 states and 1912 transitions. [2024-10-11 03:23:31,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 03:23:31,503 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 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 54 [2024-10-11 03:23:31,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:23:31,507 INFO L225 Difference]: With dead ends: 1261 [2024-10-11 03:23:31,507 INFO L226 Difference]: Without dead ends: 837 [2024-10-11 03:23:31,508 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 [2024-10-11 03:23:31,509 INFO L432 NwaCegarLoop]: 138 mSDtfsCounter, 50 mSDsluCounter, 78 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 216 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 03:23:31,509 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 216 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 03:23:31,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 837 states. [2024-10-11 03:23:31,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 837 to 835. [2024-10-11 03:23:31,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 835 states, 834 states have (on average 1.4940047961630696) internal successors, (1246), 834 states have internal predecessors, (1246), 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) [2024-10-11 03:23:31,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 835 states to 835 states and 1246 transitions. [2024-10-11 03:23:31,539 INFO L78 Accepts]: Start accepts. Automaton has 835 states and 1246 transitions. Word has length 54 [2024-10-11 03:23:31,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:23:31,539 INFO L471 AbstractCegarLoop]: Abstraction has 835 states and 1246 transitions. [2024-10-11 03:23:31,540 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 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) [2024-10-11 03:23:31,540 INFO L276 IsEmpty]: Start isEmpty. Operand 835 states and 1246 transitions. [2024-10-11 03:23:31,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2024-10-11 03:23:31,541 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:23:31,541 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] [2024-10-11 03:23:31,541 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-11 03:23:31,542 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:23:31,542 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:23:31,542 INFO L85 PathProgramCache]: Analyzing trace with hash -1349643706, now seen corresponding path program 1 times [2024-10-11 03:23:31,542 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:23:31,542 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1325506500] [2024-10-11 03:23:31,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:23:31,543 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:23:31,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:23:31,609 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:23:31,609 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:23:31,609 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1325506500] [2024-10-11 03:23:31,609 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1325506500] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:23:31,609 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:23:31,609 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 03:23:31,610 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [6744217] [2024-10-11 03:23:31,610 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:23:31,610 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 03:23:31,610 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:23:31,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 03:23:31,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 03:23:31,611 INFO L87 Difference]: Start difference. First operand 835 states and 1246 transitions. Second operand has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 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) [2024-10-11 03:23:31,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:23:31,660 INFO L93 Difference]: Finished difference Result 2335 states and 3496 transitions. [2024-10-11 03:23:31,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 03:23:31,660 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 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 54 [2024-10-11 03:23:31,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:23:31,668 INFO L225 Difference]: With dead ends: 2335 [2024-10-11 03:23:31,669 INFO L226 Difference]: Without dead ends: 1537 [2024-10-11 03:23:31,670 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 [2024-10-11 03:23:31,671 INFO L432 NwaCegarLoop]: 136 mSDtfsCounter, 48 mSDsluCounter, 82 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 218 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 03:23:31,672 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 218 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 03:23:31,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1537 states. [2024-10-11 03:23:31,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1537 to 1535. [2024-10-11 03:23:31,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1535 states, 1534 states have (on average 1.4745762711864407) internal successors, (2262), 1534 states have internal predecessors, (2262), 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) [2024-10-11 03:23:31,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1535 states to 1535 states and 2262 transitions. [2024-10-11 03:23:31,728 INFO L78 Accepts]: Start accepts. Automaton has 1535 states and 2262 transitions. Word has length 54 [2024-10-11 03:23:31,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:23:31,729 INFO L471 AbstractCegarLoop]: Abstraction has 1535 states and 2262 transitions. [2024-10-11 03:23:31,729 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 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) [2024-10-11 03:23:31,729 INFO L276 IsEmpty]: Start isEmpty. Operand 1535 states and 2262 transitions. [2024-10-11 03:23:31,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2024-10-11 03:23:31,729 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:23:31,729 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] [2024-10-11 03:23:31,729 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-11 03:23:31,730 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:23:31,730 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:23:31,730 INFO L85 PathProgramCache]: Analyzing trace with hash -1652665018, now seen corresponding path program 1 times [2024-10-11 03:23:31,730 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:23:31,730 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [236356573] [2024-10-11 03:23:31,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:23:31,730 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:23:31,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:23:31,787 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:23:31,788 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:23:31,788 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [236356573] [2024-10-11 03:23:31,788 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [236356573] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:23:31,788 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:23:31,789 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 03:23:31,789 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [544747435] [2024-10-11 03:23:31,789 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:23:31,789 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 03:23:31,789 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:23:31,790 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 03:23:31,790 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 03:23:31,790 INFO L87 Difference]: Start difference. First operand 1535 states and 2262 transitions. Second operand has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 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) [2024-10-11 03:23:31,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:23:31,881 INFO L93 Difference]: Finished difference Result 4339 states and 6376 transitions. [2024-10-11 03:23:31,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 03:23:31,882 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 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 54 [2024-10-11 03:23:31,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:23:31,892 INFO L225 Difference]: With dead ends: 4339 [2024-10-11 03:23:31,892 INFO L226 Difference]: Without dead ends: 2841 [2024-10-11 03:23:31,894 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 [2024-10-11 03:23:31,895 INFO L432 NwaCegarLoop]: 150 mSDtfsCounter, 54 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 220 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 03:23:31,895 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 220 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 03:23:31,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2841 states. [2024-10-11 03:23:31,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2841 to 2839. [2024-10-11 03:23:31,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2839 states, 2838 states have (on average 1.4453840732910501) internal successors, (4102), 2838 states have internal predecessors, (4102), 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) [2024-10-11 03:23:31,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2839 states to 2839 states and 4102 transitions. [2024-10-11 03:23:31,990 INFO L78 Accepts]: Start accepts. Automaton has 2839 states and 4102 transitions. Word has length 54 [2024-10-11 03:23:31,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:23:31,991 INFO L471 AbstractCegarLoop]: Abstraction has 2839 states and 4102 transitions. [2024-10-11 03:23:31,991 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 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) [2024-10-11 03:23:31,991 INFO L276 IsEmpty]: Start isEmpty. Operand 2839 states and 4102 transitions. [2024-10-11 03:23:31,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-10-11 03:23:31,993 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:23:31,993 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] [2024-10-11 03:23:31,993 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-11 03:23:31,993 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:23:31,994 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:23:31,994 INFO L85 PathProgramCache]: Analyzing trace with hash 824044613, now seen corresponding path program 1 times [2024-10-11 03:23:31,994 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:23:31,995 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [705783643] [2024-10-11 03:23:31,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:23:31,995 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:23:32,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:23:32,177 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-11 03:23:32,178 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:23:32,178 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [705783643] [2024-10-11 03:23:32,178 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [705783643] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:23:32,178 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:23:32,178 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-11 03:23:32,179 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [720600728] [2024-10-11 03:23:32,179 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:23:32,179 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 03:23:32,179 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:23:32,180 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 03:23:32,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-11 03:23:32,181 INFO L87 Difference]: Start difference. First operand 2839 states and 4102 transitions. Second operand has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 7 states have internal predecessors, (71), 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) [2024-10-11 03:23:32,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:23:32,634 INFO L93 Difference]: Finished difference Result 16627 states and 24092 transitions. [2024-10-11 03:23:32,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-11 03:23:32,635 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 7 states have internal predecessors, (71), 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 [2024-10-11 03:23:32,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:23:32,688 INFO L225 Difference]: With dead ends: 16627 [2024-10-11 03:23:32,691 INFO L226 Difference]: Without dead ends: 14641 [2024-10-11 03:23:32,702 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-10-11 03:23:32,703 INFO L432 NwaCegarLoop]: 157 mSDtfsCounter, 541 mSDsluCounter, 507 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 541 SdHoareTripleChecker+Valid, 664 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 03:23:32,703 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [541 Valid, 664 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 03:23:32,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14641 states. [2024-10-11 03:23:32,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14641 to 5239. [2024-10-11 03:23:32,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5239 states, 5238 states have (on average 1.4398625429553265) internal successors, (7542), 5238 states have internal predecessors, (7542), 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) [2024-10-11 03:23:32,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5239 states to 5239 states and 7542 transitions. [2024-10-11 03:23:33,001 INFO L78 Accepts]: Start accepts. Automaton has 5239 states and 7542 transitions. Word has length 72 [2024-10-11 03:23:33,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:23:33,001 INFO L471 AbstractCegarLoop]: Abstraction has 5239 states and 7542 transitions. [2024-10-11 03:23:33,001 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 7 states have internal predecessors, (71), 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) [2024-10-11 03:23:33,002 INFO L276 IsEmpty]: Start isEmpty. Operand 5239 states and 7542 transitions. [2024-10-11 03:23:33,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-10-11 03:23:33,003 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:23:33,004 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] [2024-10-11 03:23:33,004 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-11 03:23:33,004 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:23:33,004 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:23:33,005 INFO L85 PathProgramCache]: Analyzing trace with hash 595405381, now seen corresponding path program 1 times [2024-10-11 03:23:33,005 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:23:33,005 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1209559884] [2024-10-11 03:23:33,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:23:33,005 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:23:33,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:23:33,167 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-10-11 03:23:33,167 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:23:33,168 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1209559884] [2024-10-11 03:23:33,168 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1209559884] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:23:33,168 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:23:33,168 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-11 03:23:33,168 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1182394721] [2024-10-11 03:23:33,168 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:23:33,169 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 03:23:33,169 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:23:33,170 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 03:23:33,170 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-11 03:23:33,170 INFO L87 Difference]: Start difference. First operand 5239 states and 7542 transitions. Second operand has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 7 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:23:33,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:23:33,720 INFO L93 Difference]: Finished difference Result 19427 states and 28124 transitions. [2024-10-11 03:23:33,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-11 03:23:33,721 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 7 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 72 [2024-10-11 03:23:33,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:23:33,777 INFO L225 Difference]: With dead ends: 19427 [2024-10-11 03:23:33,778 INFO L226 Difference]: Without dead ends: 16625 [2024-10-11 03:23:33,787 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-10-11 03:23:33,788 INFO L432 NwaCegarLoop]: 157 mSDtfsCounter, 586 mSDsluCounter, 540 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 586 SdHoareTripleChecker+Valid, 697 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 03:23:33,790 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [586 Valid, 697 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 03:23:33,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16625 states. [2024-10-11 03:23:34,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16625 to 9031. [2024-10-11 03:23:34,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9031 states, 9030 states have (on average 1.4358803986710964) internal successors, (12966), 9030 states have internal predecessors, (12966), 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) [2024-10-11 03:23:34,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9031 states to 9031 states and 12966 transitions. [2024-10-11 03:23:34,260 INFO L78 Accepts]: Start accepts. Automaton has 9031 states and 12966 transitions. Word has length 72 [2024-10-11 03:23:34,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:23:34,261 INFO L471 AbstractCegarLoop]: Abstraction has 9031 states and 12966 transitions. [2024-10-11 03:23:34,261 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 7 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:23:34,261 INFO L276 IsEmpty]: Start isEmpty. Operand 9031 states and 12966 transitions. [2024-10-11 03:23:34,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-10-11 03:23:34,263 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:23:34,263 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] [2024-10-11 03:23:34,263 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-11 03:23:34,264 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:23:34,264 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:23:34,264 INFO L85 PathProgramCache]: Analyzing trace with hash -30250683, now seen corresponding path program 1 times [2024-10-11 03:23:34,264 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:23:34,265 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1247207623] [2024-10-11 03:23:34,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:23:34,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:23:34,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:23:34,438 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-10-11 03:23:34,438 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:23:34,438 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1247207623] [2024-10-11 03:23:34,439 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1247207623] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:23:34,439 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:23:34,439 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-11 03:23:34,439 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1713121482] [2024-10-11 03:23:34,439 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:23:34,440 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 03:23:34,440 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:23:34,440 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 03:23:34,440 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-11 03:23:34,441 INFO L87 Difference]: Start difference. First operand 9031 states and 12966 transitions. Second operand has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 7 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:23:35,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:23:35,001 INFO L93 Difference]: Finished difference Result 22227 states and 32140 transitions. [2024-10-11 03:23:35,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-11 03:23:35,002 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 7 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 72 [2024-10-11 03:23:35,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:23:35,043 INFO L225 Difference]: With dead ends: 22227 [2024-10-11 03:23:35,043 INFO L226 Difference]: Without dead ends: 19425 [2024-10-11 03:23:35,051 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-10-11 03:23:35,052 INFO L432 NwaCegarLoop]: 155 mSDtfsCounter, 631 mSDsluCounter, 507 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 631 SdHoareTripleChecker+Valid, 662 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 03:23:35,052 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [631 Valid, 662 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 03:23:35,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19425 states. [2024-10-11 03:23:35,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19425 to 11831. [2024-10-11 03:23:35,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11831 states, 11830 states have (on average 1.4355029585798817) internal successors, (16982), 11830 states have internal predecessors, (16982), 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) [2024-10-11 03:23:35,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11831 states to 11831 states and 16982 transitions. [2024-10-11 03:23:35,530 INFO L78 Accepts]: Start accepts. Automaton has 11831 states and 16982 transitions. Word has length 72 [2024-10-11 03:23:35,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:23:35,530 INFO L471 AbstractCegarLoop]: Abstraction has 11831 states and 16982 transitions. [2024-10-11 03:23:35,531 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 7 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:23:35,531 INFO L276 IsEmpty]: Start isEmpty. Operand 11831 states and 16982 transitions. [2024-10-11 03:23:35,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-10-11 03:23:35,533 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:23:35,533 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] [2024-10-11 03:23:35,534 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-11 03:23:35,534 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:23:35,534 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:23:35,534 INFO L85 PathProgramCache]: Analyzing trace with hash 858482757, now seen corresponding path program 1 times [2024-10-11 03:23:35,535 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:23:35,535 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1727002379] [2024-10-11 03:23:35,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:23:35,535 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:23:35,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:23:35,715 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-10-11 03:23:35,715 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:23:35,715 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1727002379] [2024-10-11 03:23:35,715 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1727002379] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:23:35,716 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:23:35,716 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-11 03:23:35,716 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1412147032] [2024-10-11 03:23:35,716 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:23:35,716 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 03:23:35,717 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:23:35,717 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 03:23:35,717 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-11 03:23:35,717 INFO L87 Difference]: Start difference. First operand 11831 states and 16982 transitions. Second operand has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 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) [2024-10-11 03:23:36,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:23:36,439 INFO L93 Difference]: Finished difference Result 25027 states and 36156 transitions. [2024-10-11 03:23:36,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-11 03:23:36,440 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 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 [2024-10-11 03:23:36,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:23:36,487 INFO L225 Difference]: With dead ends: 25027 [2024-10-11 03:23:36,487 INFO L226 Difference]: Without dead ends: 22225 [2024-10-11 03:23:36,502 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-10-11 03:23:36,503 INFO L432 NwaCegarLoop]: 155 mSDtfsCounter, 589 mSDsluCounter, 545 mSDsCounter, 0 mSdLazyCounter, 110 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 589 SdHoareTripleChecker+Valid, 700 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 03:23:36,503 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [589 Valid, 700 Invalid, 110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 110 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 03:23:36,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22225 states. [2024-10-11 03:23:36,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22225 to 14631. [2024-10-11 03:23:36,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14631 states, 14630 states have (on average 1.43526999316473) internal successors, (20998), 14630 states have internal predecessors, (20998), 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) [2024-10-11 03:23:37,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14631 states to 14631 states and 20998 transitions. [2024-10-11 03:23:37,026 INFO L78 Accepts]: Start accepts. Automaton has 14631 states and 20998 transitions. Word has length 72 [2024-10-11 03:23:37,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:23:37,026 INFO L471 AbstractCegarLoop]: Abstraction has 14631 states and 20998 transitions. [2024-10-11 03:23:37,026 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 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) [2024-10-11 03:23:37,026 INFO L276 IsEmpty]: Start isEmpty. Operand 14631 states and 20998 transitions. [2024-10-11 03:23:37,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-10-11 03:23:37,029 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:23:37,029 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] [2024-10-11 03:23:37,029 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-11 03:23:37,029 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:23:37,030 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:23:37,030 INFO L85 PathProgramCache]: Analyzing trace with hash 555461445, now seen corresponding path program 1 times [2024-10-11 03:23:37,030 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:23:37,030 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1292385555] [2024-10-11 03:23:37,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:23:37,030 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:23:37,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:23:37,180 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-11 03:23:37,181 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:23:37,181 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1292385555] [2024-10-11 03:23:37,183 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1292385555] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:23:37,183 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:23:37,183 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-11 03:23:37,183 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [102303687] [2024-10-11 03:23:37,183 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:23:37,184 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 03:23:37,184 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:23:37,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 03:23:37,184 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-11 03:23:37,184 INFO L87 Difference]: Start difference. First operand 14631 states and 20998 transitions. Second operand has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 7 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:23:37,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:23:37,829 INFO L93 Difference]: Finished difference Result 27827 states and 40172 transitions. [2024-10-11 03:23:37,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-11 03:23:37,830 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 7 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 72 [2024-10-11 03:23:37,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:23:37,886 INFO L225 Difference]: With dead ends: 27827 [2024-10-11 03:23:37,886 INFO L226 Difference]: Without dead ends: 25025 [2024-10-11 03:23:37,901 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-10-11 03:23:37,902 INFO L432 NwaCegarLoop]: 154 mSDtfsCounter, 541 mSDsluCounter, 634 mSDsCounter, 0 mSdLazyCounter, 156 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 541 SdHoareTripleChecker+Valid, 788 SdHoareTripleChecker+Invalid, 156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 156 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 03:23:37,903 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [541 Valid, 788 Invalid, 156 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 156 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 03:23:37,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25025 states. [2024-10-11 03:23:38,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25025 to 17431. [2024-10-11 03:23:38,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17431 states, 17430 states have (on average 1.4351118760757315) internal successors, (25014), 17430 states have internal predecessors, (25014), 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) [2024-10-11 03:23:38,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17431 states to 17431 states and 25014 transitions. [2024-10-11 03:23:38,574 INFO L78 Accepts]: Start accepts. Automaton has 17431 states and 25014 transitions. Word has length 72 [2024-10-11 03:23:38,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:23:38,575 INFO L471 AbstractCegarLoop]: Abstraction has 17431 states and 25014 transitions. [2024-10-11 03:23:38,575 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 7 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:23:38,575 INFO L276 IsEmpty]: Start isEmpty. Operand 17431 states and 25014 transitions. [2024-10-11 03:23:38,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2024-10-11 03:23:38,578 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:23:38,578 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:23:38,578 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-10-11 03:23:38,578 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:23:38,579 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:23:38,579 INFO L85 PathProgramCache]: Analyzing trace with hash 1054594028, now seen corresponding path program 1 times [2024-10-11 03:23:38,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:23:38,579 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1982870562] [2024-10-11 03:23:38,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:23:38,579 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:23:38,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:23:38,764 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:23:38,765 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:23:38,765 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1982870562] [2024-10-11 03:23:38,765 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1982870562] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:23:38,765 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:23:38,766 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 03:23:38,766 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1313500184] [2024-10-11 03:23:38,766 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:23:38,766 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 03:23:38,767 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:23:38,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 03:23:38,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 03:23:38,768 INFO L87 Difference]: Start difference. First operand 17431 states and 25014 transitions. Second operand has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 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) [2024-10-11 03:23:39,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:23:39,321 INFO L93 Difference]: Finished difference Result 34827 states and 49992 transitions. [2024-10-11 03:23:39,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 03:23:39,322 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 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 [2024-10-11 03:23:39,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:23:39,367 INFO L225 Difference]: With dead ends: 34827 [2024-10-11 03:23:39,368 INFO L226 Difference]: Without dead ends: 17433 [2024-10-11 03:23:39,395 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 [2024-10-11 03:23:39,396 INFO L432 NwaCegarLoop]: 132 mSDtfsCounter, 45 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 220 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 03:23:39,396 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 220 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 03:23:39,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17433 states. [2024-10-11 03:23:40,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17433 to 17431. [2024-10-11 03:23:40,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17431 states, 17430 states have (on average 1.4181296615031556) internal successors, (24718), 17430 states have internal predecessors, (24718), 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) [2024-10-11 03:23:40,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17431 states to 17431 states and 24718 transitions. [2024-10-11 03:23:40,177 INFO L78 Accepts]: Start accepts. Automaton has 17431 states and 24718 transitions. Word has length 73 [2024-10-11 03:23:40,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:23:40,177 INFO L471 AbstractCegarLoop]: Abstraction has 17431 states and 24718 transitions. [2024-10-11 03:23:40,177 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 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) [2024-10-11 03:23:40,177 INFO L276 IsEmpty]: Start isEmpty. Operand 17431 states and 24718 transitions. [2024-10-11 03:23:40,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-10-11 03:23:40,179 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:23:40,179 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:23:40,180 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-10-11 03:23:40,180 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:23:40,180 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:23:40,180 INFO L85 PathProgramCache]: Analyzing trace with hash 464946093, now seen corresponding path program 1 times [2024-10-11 03:23:40,180 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:23:40,180 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [253147574] [2024-10-11 03:23:40,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:23:40,181 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:23:40,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:23:40,271 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:23:40,271 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:23:40,272 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [253147574] [2024-10-11 03:23:40,272 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [253147574] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:23:40,272 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:23:40,272 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 03:23:40,272 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [292160940] [2024-10-11 03:23:40,272 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:23:40,272 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 03:23:40,272 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:23:40,273 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 03:23:40,273 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 03:23:40,273 INFO L87 Difference]: Start difference. First operand 17431 states and 24718 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) [2024-10-11 03:23:40,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:23:40,439 INFO L93 Difference]: Finished difference Result 23901 states and 33995 transitions. [2024-10-11 03:23:40,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 03:23:40,439 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 [2024-10-11 03:23:40,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:23:40,455 INFO L225 Difference]: With dead ends: 23901 [2024-10-11 03:23:40,455 INFO L226 Difference]: Without dead ends: 6507 [2024-10-11 03:23:40,473 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 [2024-10-11 03:23:40,474 INFO L432 NwaCegarLoop]: 130 mSDtfsCounter, 39 mSDsluCounter, 87 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 217 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 03:23:40,475 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 217 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 03:23:40,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6507 states. [2024-10-11 03:23:40,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6507 to 6500. [2024-10-11 03:23:40,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6500 states, 6499 states have (on average 1.416064009847669) internal successors, (9203), 6499 states have internal predecessors, (9203), 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) [2024-10-11 03:23:40,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6500 states to 6500 states and 9203 transitions. [2024-10-11 03:23:40,757 INFO L78 Accepts]: Start accepts. Automaton has 6500 states and 9203 transitions. Word has length 74 [2024-10-11 03:23:40,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:23:40,757 INFO L471 AbstractCegarLoop]: Abstraction has 6500 states and 9203 transitions. [2024-10-11 03:23:40,758 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) [2024-10-11 03:23:40,758 INFO L276 IsEmpty]: Start isEmpty. Operand 6500 states and 9203 transitions. [2024-10-11 03:23:40,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-10-11 03:23:40,761 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:23:40,761 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] [2024-10-11 03:23:40,761 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-10-11 03:23:40,762 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:23:40,762 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:23:40,762 INFO L85 PathProgramCache]: Analyzing trace with hash -543313446, now seen corresponding path program 1 times [2024-10-11 03:23:40,762 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:23:40,762 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [222958986] [2024-10-11 03:23:40,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:23:40,763 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:23:40,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:23:40,858 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:23:40,859 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:23:40,859 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [222958986] [2024-10-11 03:23:40,859 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [222958986] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:23:40,859 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:23:40,859 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 03:23:40,859 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [964603869] [2024-10-11 03:23:40,859 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:23:40,860 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 03:23:40,860 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:23:40,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 03:23:40,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 03:23:40,861 INFO L87 Difference]: Start difference. First operand 6500 states and 9203 transitions. Second operand has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 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) [2024-10-11 03:23:40,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:23:40,942 INFO L93 Difference]: Finished difference Result 9728 states and 13781 transitions. [2024-10-11 03:23:40,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 03:23:40,943 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 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 [2024-10-11 03:23:40,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:23:40,951 INFO L225 Difference]: With dead ends: 9728 [2024-10-11 03:23:40,951 INFO L226 Difference]: Without dead ends: 3278 [2024-10-11 03:23:40,958 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 03:23:40,960 INFO L432 NwaCegarLoop]: 124 mSDtfsCounter, 41 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 196 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 03:23:40,960 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 196 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 03:23:40,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3278 states. [2024-10-11 03:23:41,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3278 to 3276. [2024-10-11 03:23:41,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3276 states, 3275 states have (on average 1.3969465648854962) internal successors, (4575), 3275 states have internal predecessors, (4575), 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) [2024-10-11 03:23:41,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3276 states to 3276 states and 4575 transitions. [2024-10-11 03:23:41,046 INFO L78 Accepts]: Start accepts. Automaton has 3276 states and 4575 transitions. Word has length 75 [2024-10-11 03:23:41,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:23:41,047 INFO L471 AbstractCegarLoop]: Abstraction has 3276 states and 4575 transitions. [2024-10-11 03:23:41,047 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 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) [2024-10-11 03:23:41,047 INFO L276 IsEmpty]: Start isEmpty. Operand 3276 states and 4575 transitions. [2024-10-11 03:23:41,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-10-11 03:23:41,048 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:23:41,048 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:23:41,048 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-10-11 03:23:41,048 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:23:41,049 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:23:41,049 INFO L85 PathProgramCache]: Analyzing trace with hash -2064813752, now seen corresponding path program 1 times [2024-10-11 03:23:41,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:23:41,049 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [205955181] [2024-10-11 03:23:41,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:23:41,049 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:23:41,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:23:41,141 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:23:41,141 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:23:41,141 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [205955181] [2024-10-11 03:23:41,141 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [205955181] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:23:41,141 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:23:41,142 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 03:23:41,142 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1497615686] [2024-10-11 03:23:41,142 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:23:41,142 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 03:23:41,142 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:23:41,142 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 03:23:41,142 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 03:23:41,143 INFO L87 Difference]: Start difference. First operand 3276 states and 4575 transitions. Second operand has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 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) [2024-10-11 03:23:41,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:23:41,190 INFO L93 Difference]: Finished difference Result 4892 states and 6839 transitions. [2024-10-11 03:23:41,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 03:23:41,191 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 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 [2024-10-11 03:23:41,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:23:41,195 INFO L225 Difference]: With dead ends: 4892 [2024-10-11 03:23:41,196 INFO L226 Difference]: Without dead ends: 1666 [2024-10-11 03:23:41,201 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 [2024-10-11 03:23:41,202 INFO L432 NwaCegarLoop]: 117 mSDtfsCounter, 38 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 181 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 03:23:41,202 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 181 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 03:23:41,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1666 states. [2024-10-11 03:23:41,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1666 to 1664. [2024-10-11 03:23:41,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1664 states, 1663 states have (on average 1.375225496091401) internal successors, (2287), 1663 states have internal predecessors, (2287), 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) [2024-10-11 03:23:41,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1664 states to 1664 states and 2287 transitions. [2024-10-11 03:23:41,248 INFO L78 Accepts]: Start accepts. Automaton has 1664 states and 2287 transitions. Word has length 77 [2024-10-11 03:23:41,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:23:41,248 INFO L471 AbstractCegarLoop]: Abstraction has 1664 states and 2287 transitions. [2024-10-11 03:23:41,248 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 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) [2024-10-11 03:23:41,248 INFO L276 IsEmpty]: Start isEmpty. Operand 1664 states and 2287 transitions. [2024-10-11 03:23:41,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-10-11 03:23:41,249 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:23:41,249 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:23:41,250 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-10-11 03:23:41,250 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:23:41,250 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:23:41,250 INFO L85 PathProgramCache]: Analyzing trace with hash 603845174, now seen corresponding path program 1 times [2024-10-11 03:23:41,250 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:23:41,251 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2066234205] [2024-10-11 03:23:41,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:23:41,252 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:23:41,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:23:41,349 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:23:41,350 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:23:41,350 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2066234205] [2024-10-11 03:23:41,350 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2066234205] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:23:41,350 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:23:41,350 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 03:23:41,350 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1021420312] [2024-10-11 03:23:41,350 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:23:41,351 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 03:23:41,351 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:23:41,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 03:23:41,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 03:23:41,351 INFO L87 Difference]: Start difference. First operand 1664 states and 2287 transitions. Second operand has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:23:41,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:23:41,382 INFO L93 Difference]: Finished difference Result 2474 states and 3407 transitions. [2024-10-11 03:23:41,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 03:23:41,382 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 79 [2024-10-11 03:23:41,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:23:41,385 INFO L225 Difference]: With dead ends: 2474 [2024-10-11 03:23:41,385 INFO L226 Difference]: Without dead ends: 860 [2024-10-11 03:23:41,386 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 [2024-10-11 03:23:41,387 INFO L432 NwaCegarLoop]: 110 mSDtfsCounter, 35 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 166 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 03:23:41,387 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 166 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 03:23:41,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 860 states. [2024-10-11 03:23:41,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 860 to 858. [2024-10-11 03:23:41,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 858 states, 857 states have (on average 1.3488914819136524) internal successors, (1156), 857 states have internal predecessors, (1156), 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) [2024-10-11 03:23:41,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 858 states to 858 states and 1156 transitions. [2024-10-11 03:23:41,411 INFO L78 Accepts]: Start accepts. Automaton has 858 states and 1156 transitions. Word has length 79 [2024-10-11 03:23:41,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:23:41,411 INFO L471 AbstractCegarLoop]: Abstraction has 858 states and 1156 transitions. [2024-10-11 03:23:41,411 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:23:41,412 INFO L276 IsEmpty]: Start isEmpty. Operand 858 states and 1156 transitions. [2024-10-11 03:23:41,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-10-11 03:23:41,412 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:23:41,412 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:23:41,413 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-10-11 03:23:41,413 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:23:41,413 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:23:41,413 INFO L85 PathProgramCache]: Analyzing trace with hash -1189473116, now seen corresponding path program 1 times [2024-10-11 03:23:41,413 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:23:41,413 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [190975553] [2024-10-11 03:23:41,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:23:41,414 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:23:41,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:23:42,529 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 10 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:23:42,529 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:23:42,530 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [190975553] [2024-10-11 03:23:42,530 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [190975553] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 03:23:42,530 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [194935158] [2024-10-11 03:23:42,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:23:42,530 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 03:23:42,530 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 03:23:42,532 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 03:23:42,534 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-11 03:23:42,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:23:42,665 INFO L255 TraceCheckSpWp]: Trace formula consists of 342 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-10-11 03:23:42,675 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 03:23:42,856 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 3 proven. 11 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-11 03:23:42,856 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 03:23:43,240 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 3 proven. 11 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-11 03:23:43,241 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [194935158] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 03:23:43,241 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 03:23:43,241 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 5, 4] total 17 [2024-10-11 03:23:43,242 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [681299531] [2024-10-11 03:23:43,242 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 03:23:43,242 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-10-11 03:23:43,243 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:23:43,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-10-11 03:23:43,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=231, Unknown=0, NotChecked=0, Total=272 [2024-10-11 03:23:43,244 INFO L87 Difference]: Start difference. First operand 858 states and 1156 transitions. Second operand has 17 states, 17 states have (on average 13.529411764705882) internal successors, (230), 17 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) [2024-10-11 03:23:46,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:23:46,166 INFO L93 Difference]: Finished difference Result 6639 states and 8930 transitions. [2024-10-11 03:23:46,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2024-10-11 03:23:46,167 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 13.529411764705882) internal successors, (230), 17 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) Word has length 81 [2024-10-11 03:23:46,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:23:46,177 INFO L225 Difference]: With dead ends: 6639 [2024-10-11 03:23:46,178 INFO L226 Difference]: Without dead ends: 5831 [2024-10-11 03:23:46,181 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 217 GetRequests, 156 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1172 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=696, Invalid=3210, Unknown=0, NotChecked=0, Total=3906 [2024-10-11 03:23:46,182 INFO L432 NwaCegarLoop]: 71 mSDtfsCounter, 1673 mSDsluCounter, 537 mSDsCounter, 0 mSdLazyCounter, 785 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1673 SdHoareTripleChecker+Valid, 608 SdHoareTripleChecker+Invalid, 827 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 785 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-10-11 03:23:46,183 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1673 Valid, 608 Invalid, 827 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 785 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-10-11 03:23:46,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5831 states. [2024-10-11 03:23:46,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5831 to 5683. [2024-10-11 03:23:46,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5683 states, 5682 states have (on average 1.2972544878563885) internal successors, (7371), 5682 states have internal predecessors, (7371), 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) [2024-10-11 03:23:46,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5683 states to 5683 states and 7371 transitions. [2024-10-11 03:23:46,376 INFO L78 Accepts]: Start accepts. Automaton has 5683 states and 7371 transitions. Word has length 81 [2024-10-11 03:23:46,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:23:46,377 INFO L471 AbstractCegarLoop]: Abstraction has 5683 states and 7371 transitions. [2024-10-11 03:23:46,377 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 13.529411764705882) internal successors, (230), 17 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) [2024-10-11 03:23:46,377 INFO L276 IsEmpty]: Start isEmpty. Operand 5683 states and 7371 transitions. [2024-10-11 03:23:46,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-10-11 03:23:46,378 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:23:46,378 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:23:46,397 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-10-11 03:23:46,579 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2024-10-11 03:23:46,580 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:23:46,580 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:23:46,580 INFO L85 PathProgramCache]: Analyzing trace with hash 1226789109, now seen corresponding path program 1 times [2024-10-11 03:23:46,580 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:23:46,581 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1829783232] [2024-10-11 03:23:46,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:23:46,581 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:23:46,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:23:47,381 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 12 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:23:47,381 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:23:47,381 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1829783232] [2024-10-11 03:23:47,381 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1829783232] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 03:23:47,381 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [694883532] [2024-10-11 03:23:47,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:23:47,382 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 03:23:47,383 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 03:23:47,384 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 03:23:47,386 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-11 03:23:47,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:23:47,499 INFO L255 TraceCheckSpWp]: Trace formula consists of 345 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-10-11 03:23:47,502 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 03:23:47,954 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 12 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:23:47,954 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 03:23:48,666 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 12 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:23:48,666 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [694883532] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 03:23:48,666 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 03:23:48,666 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 8, 8] total 23 [2024-10-11 03:23:48,666 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [813718136] [2024-10-11 03:23:48,667 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 03:23:48,667 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-10-11 03:23:48,667 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:23:48,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-10-11 03:23:48,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=475, Unknown=0, NotChecked=0, Total=552 [2024-10-11 03:23:48,668 INFO L87 Difference]: Start difference. First operand 5683 states and 7371 transitions. Second operand has 24 states, 24 states have (on average 8.25) internal successors, (198), 23 states have internal predecessors, (198), 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) [2024-10-11 03:23:49,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:23:49,413 INFO L93 Difference]: Finished difference Result 16467 states and 21492 transitions. [2024-10-11 03:23:49,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-11 03:23:49,414 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 8.25) internal successors, (198), 23 states have internal predecessors, (198), 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 82 [2024-10-11 03:23:49,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:23:49,434 INFO L225 Difference]: With dead ends: 16467 [2024-10-11 03:23:49,435 INFO L226 Difference]: Without dead ends: 11540 [2024-10-11 03:23:49,443 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 184 GetRequests, 151 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 202 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=248, Invalid=942, Unknown=0, NotChecked=0, Total=1190 [2024-10-11 03:23:49,443 INFO L432 NwaCegarLoop]: 69 mSDtfsCounter, 1003 mSDsluCounter, 447 mSDsCounter, 0 mSdLazyCounter, 467 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1003 SdHoareTripleChecker+Valid, 516 SdHoareTripleChecker+Invalid, 481 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 467 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-11 03:23:49,444 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1003 Valid, 516 Invalid, 481 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 467 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-11 03:23:49,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11540 states. [2024-10-11 03:23:49,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11540 to 11388. [2024-10-11 03:23:49,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11388 states, 11387 states have (on average 1.2808465794326864) internal successors, (14585), 11387 states have internal predecessors, (14585), 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) [2024-10-11 03:23:49,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11388 states to 11388 states and 14585 transitions. [2024-10-11 03:23:49,958 INFO L78 Accepts]: Start accepts. Automaton has 11388 states and 14585 transitions. Word has length 82 [2024-10-11 03:23:49,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:23:49,958 INFO L471 AbstractCegarLoop]: Abstraction has 11388 states and 14585 transitions. [2024-10-11 03:23:49,959 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 8.25) internal successors, (198), 23 states have internal predecessors, (198), 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) [2024-10-11 03:23:49,959 INFO L276 IsEmpty]: Start isEmpty. Operand 11388 states and 14585 transitions. [2024-10-11 03:23:49,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-10-11 03:23:49,960 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:23:49,961 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-11 03:23:49,979 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-11 03:23:50,164 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,3 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 03:23:50,165 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:23:50,165 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:23:50,165 INFO L85 PathProgramCache]: Analyzing trace with hash 475142979, now seen corresponding path program 1 times [2024-10-11 03:23:50,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:23:50,166 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1021906173] [2024-10-11 03:23:50,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:23:50,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:23:50,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:23:51,844 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 4 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:23:51,844 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:23:51,844 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1021906173] [2024-10-11 03:23:51,844 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1021906173] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 03:23:51,844 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1275147536] [2024-10-11 03:23:51,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:23:51,845 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 03:23:51,845 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 03:23:51,848 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 03:23:51,850 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-11 03:23:51,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:23:51,970 INFO L255 TraceCheckSpWp]: Trace formula consists of 347 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-10-11 03:23:51,972 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 03:23:52,388 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 4 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:23:52,388 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 03:23:53,177 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 4 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:23:53,177 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1275147536] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 03:23:53,177 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 03:23:53,177 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 8, 8] total 23 [2024-10-11 03:23:53,177 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1163862671] [2024-10-11 03:23:53,177 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 03:23:53,178 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-10-11 03:23:53,178 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:23:53,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-10-11 03:23:53,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=470, Unknown=0, NotChecked=0, Total=552 [2024-10-11 03:23:53,179 INFO L87 Difference]: Start difference. First operand 11388 states and 14585 transitions. Second operand has 24 states, 24 states have (on average 8.916666666666666) internal successors, (214), 23 states have internal predecessors, (214), 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) [2024-10-11 03:23:54,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:23:54,082 INFO L93 Difference]: Finished difference Result 33516 states and 43061 transitions. [2024-10-11 03:23:54,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-11 03:23:54,083 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 8.916666666666666) internal successors, (214), 23 states have internal predecessors, (214), 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 82 [2024-10-11 03:23:54,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:23:54,119 INFO L225 Difference]: With dead ends: 33516 [2024-10-11 03:23:54,119 INFO L226 Difference]: Without dead ends: 22978 [2024-10-11 03:23:54,137 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 184 GetRequests, 151 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 200 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=241, Invalid=949, Unknown=0, NotChecked=0, Total=1190 [2024-10-11 03:23:54,138 INFO L432 NwaCegarLoop]: 69 mSDtfsCounter, 454 mSDsluCounter, 655 mSDsCounter, 0 mSdLazyCounter, 712 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 454 SdHoareTripleChecker+Valid, 724 SdHoareTripleChecker+Invalid, 719 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 712 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-11 03:23:54,138 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [454 Valid, 724 Invalid, 719 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 712 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-11 03:23:54,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22978 states. [2024-10-11 03:23:54,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22978 to 22670. [2024-10-11 03:23:54,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22670 states, 22669 states have (on average 1.2640169394327054) internal successors, (28654), 22669 states have internal predecessors, (28654), 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) [2024-10-11 03:23:54,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22670 states to 22670 states and 28654 transitions. [2024-10-11 03:23:54,888 INFO L78 Accepts]: Start accepts. Automaton has 22670 states and 28654 transitions. Word has length 82 [2024-10-11 03:23:54,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:23:54,888 INFO L471 AbstractCegarLoop]: Abstraction has 22670 states and 28654 transitions. [2024-10-11 03:23:54,888 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 8.916666666666666) internal successors, (214), 23 states have internal predecessors, (214), 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) [2024-10-11 03:23:54,889 INFO L276 IsEmpty]: Start isEmpty. Operand 22670 states and 28654 transitions. [2024-10-11 03:23:54,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-10-11 03:23:54,890 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:23:54,890 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:23:54,903 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-10-11 03:23:55,090 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,4 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 03:23:55,090 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:23:55,091 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:23:55,091 INFO L85 PathProgramCache]: Analyzing trace with hash -15723470, now seen corresponding path program 1 times [2024-10-11 03:23:55,091 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:23:55,091 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1225051617] [2024-10-11 03:23:55,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:23:55,091 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:23:55,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:23:56,434 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 6 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:23:56,435 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:23:56,435 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1225051617] [2024-10-11 03:23:56,435 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1225051617] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 03:23:56,435 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1333800501] [2024-10-11 03:23:56,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:23:56,435 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 03:23:56,435 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 03:23:56,436 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 03:23:56,437 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-11 03:23:56,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:23:56,531 INFO L255 TraceCheckSpWp]: Trace formula consists of 349 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-10-11 03:23:56,533 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 03:23:56,890 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 12 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:23:56,891 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 03:23:57,984 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 4 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:23:57,984 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1333800501] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 03:23:57,984 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 03:23:57,984 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 8, 12] total 29 [2024-10-11 03:23:57,985 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2011968553] [2024-10-11 03:23:57,985 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 03:23:57,985 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2024-10-11 03:23:57,985 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:23:57,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2024-10-11 03:23:57,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=105, Invalid=765, Unknown=0, NotChecked=0, Total=870 [2024-10-11 03:23:57,987 INFO L87 Difference]: Start difference. First operand 22670 states and 28654 transitions. Second operand has 30 states, 30 states have (on average 7.7) internal successors, (231), 29 states have internal predecessors, (231), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:24:01,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:24:01,822 INFO L93 Difference]: Finished difference Result 106708 states and 135607 transitions. [2024-10-11 03:24:01,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2024-10-11 03:24:01,823 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 7.7) internal successors, (231), 29 states have internal predecessors, (231), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 83 [2024-10-11 03:24:01,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:24:01,928 INFO L225 Difference]: With dead ends: 106708 [2024-10-11 03:24:01,928 INFO L226 Difference]: Without dead ends: 86184 [2024-10-11 03:24:01,956 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 208 GetRequests, 147 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 790 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=696, Invalid=3210, Unknown=0, NotChecked=0, Total=3906 [2024-10-11 03:24:01,957 INFO L432 NwaCegarLoop]: 60 mSDtfsCounter, 2274 mSDsluCounter, 897 mSDsCounter, 0 mSdLazyCounter, 1189 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2274 SdHoareTripleChecker+Valid, 957 SdHoareTripleChecker+Invalid, 1234 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 1189 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-11 03:24:01,957 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2274 Valid, 957 Invalid, 1234 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 1189 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-11 03:24:02,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86184 states. [2024-10-11 03:24:04,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86184 to 85564. [2024-10-11 03:24:04,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85564 states, 85563 states have (on average 1.2603461776702547) internal successors, (107839), 85563 states have internal predecessors, (107839), 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) [2024-10-11 03:24:04,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85564 states to 85564 states and 107839 transitions. [2024-10-11 03:24:04,311 INFO L78 Accepts]: Start accepts. Automaton has 85564 states and 107839 transitions. Word has length 83 [2024-10-11 03:24:04,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:24:04,311 INFO L471 AbstractCegarLoop]: Abstraction has 85564 states and 107839 transitions. [2024-10-11 03:24:04,312 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 7.7) internal successors, (231), 29 states have internal predecessors, (231), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:24:04,312 INFO L276 IsEmpty]: Start isEmpty. Operand 85564 states and 107839 transitions. [2024-10-11 03:24:04,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-10-11 03:24:04,315 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:24:04,315 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:24:04,331 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-10-11 03:24:04,519 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2024-10-11 03:24:04,520 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:24:04,520 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:24:04,520 INFO L85 PathProgramCache]: Analyzing trace with hash 864905122, now seen corresponding path program 1 times [2024-10-11 03:24:04,520 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:24:04,520 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1969960292] [2024-10-11 03:24:04,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:24:04,521 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:24:04,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:24:04,855 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 6 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:24:04,855 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:24:04,855 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1969960292] [2024-10-11 03:24:04,855 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1969960292] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 03:24:04,855 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [13519089] [2024-10-11 03:24:04,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:24:04,856 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 03:24:04,856 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 03:24:04,857 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 03:24:04,858 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-10-11 03:24:04,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:24:04,959 INFO L255 TraceCheckSpWp]: Trace formula consists of 349 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-10-11 03:24:04,961 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 03:24:05,794 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 10 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:24:05,794 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 03:24:06,759 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 10 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:24:06,759 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [13519089] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 03:24:06,760 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 03:24:06,760 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 11, 11] total 28 [2024-10-11 03:24:06,760 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1295688258] [2024-10-11 03:24:06,760 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 03:24:06,760 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2024-10-11 03:24:06,761 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:24:06,761 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2024-10-11 03:24:06,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=719, Unknown=0, NotChecked=0, Total=812 [2024-10-11 03:24:06,762 INFO L87 Difference]: Start difference. First operand 85564 states and 107839 transitions. Second operand has 29 states, 29 states have (on average 7.482758620689655) internal successors, (217), 28 states have internal predecessors, (217), 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) [2024-10-11 03:24:12,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:24:12,261 INFO L93 Difference]: Finished difference Result 183715 states and 231214 transitions. [2024-10-11 03:24:12,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2024-10-11 03:24:12,261 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 7.482758620689655) internal successors, (217), 28 states have internal predecessors, (217), 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 83 [2024-10-11 03:24:12,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:24:12,404 INFO L225 Difference]: With dead ends: 183715 [2024-10-11 03:24:12,404 INFO L226 Difference]: Without dead ends: 106946 [2024-10-11 03:24:12,450 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 218 GetRequests, 145 SyntacticMatches, 0 SemanticMatches, 73 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1368 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=985, Invalid=4565, Unknown=0, NotChecked=0, Total=5550 [2024-10-11 03:24:12,450 INFO L432 NwaCegarLoop]: 87 mSDtfsCounter, 2482 mSDsluCounter, 1317 mSDsCounter, 0 mSdLazyCounter, 1488 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2482 SdHoareTripleChecker+Valid, 1404 SdHoareTripleChecker+Invalid, 1521 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 1488 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-10-11 03:24:12,451 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2482 Valid, 1404 Invalid, 1521 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 1488 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-10-11 03:24:12,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106946 states. [2024-10-11 03:24:15,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106946 to 76476. [2024-10-11 03:24:15,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76476 states, 76475 states have (on average 1.2420529584831643) internal successors, (94986), 76475 states have internal predecessors, (94986), 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) [2024-10-11 03:24:15,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76476 states to 76476 states and 94986 transitions. [2024-10-11 03:24:15,692 INFO L78 Accepts]: Start accepts. Automaton has 76476 states and 94986 transitions. Word has length 83 [2024-10-11 03:24:15,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:24:15,692 INFO L471 AbstractCegarLoop]: Abstraction has 76476 states and 94986 transitions. [2024-10-11 03:24:15,693 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 7.482758620689655) internal successors, (217), 28 states have internal predecessors, (217), 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) [2024-10-11 03:24:15,693 INFO L276 IsEmpty]: Start isEmpty. Operand 76476 states and 94986 transitions. [2024-10-11 03:24:15,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-10-11 03:24:15,695 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:24:15,695 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-11 03:24:15,712 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-10-11 03:24:15,895 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2024-10-11 03:24:15,896 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:24:15,896 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:24:15,896 INFO L85 PathProgramCache]: Analyzing trace with hash 113277619, now seen corresponding path program 1 times [2024-10-11 03:24:15,896 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:24:15,896 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [273891245] [2024-10-11 03:24:15,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:24:15,896 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:24:15,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:24:16,229 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 8 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:24:16,230 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:24:16,230 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [273891245] [2024-10-11 03:24:16,230 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [273891245] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 03:24:16,230 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1405128331] [2024-10-11 03:24:16,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:24:16,230 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 03:24:16,230 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 03:24:16,232 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 03:24:16,234 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-10-11 03:24:16,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:24:16,345 INFO L255 TraceCheckSpWp]: Trace formula consists of 351 conjuncts, 29 conjuncts are in the unsatisfiable core [2024-10-11 03:24:16,347 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 03:24:17,876 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 8 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:24:17,876 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 03:24:19,742 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 8 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:24:19,743 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1405128331] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 03:24:19,743 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 03:24:19,743 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 14, 14] total 32 [2024-10-11 03:24:19,743 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1822250833] [2024-10-11 03:24:19,743 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 03:24:19,743 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2024-10-11 03:24:19,743 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:24:19,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2024-10-11 03:24:19,744 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=163, Invalid=893, Unknown=0, NotChecked=0, Total=1056 [2024-10-11 03:24:19,744 INFO L87 Difference]: Start difference. First operand 76476 states and 94986 transitions. Second operand has 33 states, 33 states have (on average 6.424242424242424) internal successors, (212), 32 states have internal predecessors, (212), 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) [2024-10-11 03:24:26,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:24:26,480 INFO L93 Difference]: Finished difference Result 180296 states and 225156 transitions. [2024-10-11 03:24:26,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2024-10-11 03:24:26,480 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 33 states have (on average 6.424242424242424) internal successors, (212), 32 states have internal predecessors, (212), 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 84 [2024-10-11 03:24:26,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:24:26,795 INFO L225 Difference]: With dead ends: 180296 [2024-10-11 03:24:26,795 INFO L226 Difference]: Without dead ends: 112454 [2024-10-11 03:24:26,832 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 218 GetRequests, 143 SyntacticMatches, 0 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1362 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=1351, Invalid=4501, Unknown=0, NotChecked=0, Total=5852 [2024-10-11 03:24:26,833 INFO L432 NwaCegarLoop]: 121 mSDtfsCounter, 2266 mSDsluCounter, 1321 mSDsCounter, 0 mSdLazyCounter, 1397 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2266 SdHoareTripleChecker+Valid, 1442 SdHoareTripleChecker+Invalid, 1425 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 1397 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-10-11 03:24:26,833 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2266 Valid, 1442 Invalid, 1425 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 1397 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-10-11 03:24:26,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112454 states. [2024-10-11 03:24:30,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112454 to 87640. [2024-10-11 03:24:30,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87640 states, 87639 states have (on average 1.231757550862059) internal successors, (107950), 87639 states have internal predecessors, (107950), 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) [2024-10-11 03:24:30,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87640 states to 87640 states and 107950 transitions. [2024-10-11 03:24:30,856 INFO L78 Accepts]: Start accepts. Automaton has 87640 states and 107950 transitions. Word has length 84 [2024-10-11 03:24:30,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:24:30,856 INFO L471 AbstractCegarLoop]: Abstraction has 87640 states and 107950 transitions. [2024-10-11 03:24:30,856 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 33 states have (on average 6.424242424242424) internal successors, (212), 32 states have internal predecessors, (212), 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) [2024-10-11 03:24:30,856 INFO L276 IsEmpty]: Start isEmpty. Operand 87640 states and 107950 transitions. [2024-10-11 03:24:30,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-10-11 03:24:30,859 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:24:30,859 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-11 03:24:30,879 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-10-11 03:24:31,059 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2024-10-11 03:24:31,060 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:24:31,061 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:24:31,061 INFO L85 PathProgramCache]: Analyzing trace with hash -1263514798, now seen corresponding path program 1 times [2024-10-11 03:24:31,061 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:24:31,061 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [150488975] [2024-10-11 03:24:31,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:24:31,061 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:24:31,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:24:31,912 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 4 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:24:31,912 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:24:31,913 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [150488975] [2024-10-11 03:24:31,913 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [150488975] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 03:24:31,913 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2057996059] [2024-10-11 03:24:31,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:24:31,913 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 03:24:31,913 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 03:24:31,914 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 03:24:31,915 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-10-11 03:24:32,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:24:32,025 INFO L255 TraceCheckSpWp]: Trace formula consists of 353 conjuncts, 62 conjuncts are in the unsatisfiable core [2024-10-11 03:24:32,027 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 03:24:37,444 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 6 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:24:37,444 INFO L311 TraceCheckSpWp]: Computing backward predicates...