./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/combinations/pals_lcr.3.ufo.UNBOUNDED.pals+Problem12_label00.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 803cd42f Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/combinations/pals_lcr.3.ufo.UNBOUNDED.pals+Problem12_label00.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 5af223e668aa8b86ae636f9439d9ac4f153fc620faa9da4461ac4ba5e2c60ee8 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-803cd42-m [2024-11-22 03:44:21,905 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-22 03:44:21,969 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-22 03:44:21,973 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-22 03:44:21,974 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-22 03:44:21,992 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-22 03:44:21,992 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-22 03:44:21,992 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-22 03:44:21,992 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-22 03:44:21,993 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-22 03:44:21,993 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-22 03:44:21,993 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-22 03:44:21,993 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-22 03:44:21,994 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-22 03:44:21,994 INFO L153 SettingsManager]: * Use SBE=true [2024-11-22 03:44:21,994 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-22 03:44:21,994 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-22 03:44:21,994 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-22 03:44:21,995 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-22 03:44:21,995 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-22 03:44:21,995 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-22 03:44:21,996 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-22 03:44:21,996 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-22 03:44:21,996 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-22 03:44:21,997 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-22 03:44:21,997 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-22 03:44:21,997 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-22 03:44:21,997 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-22 03:44:21,998 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-22 03:44:21,998 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-22 03:44:21,998 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-22 03:44:21,998 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-22 03:44:21,998 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 03:44:21,999 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-22 03:44:21,999 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-22 03:44:21,999 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-22 03:44:21,999 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-22 03:44:22,000 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-22 03:44:22,000 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-22 03:44:22,000 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-22 03:44:22,000 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-22 03:44:22,001 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-22 03:44:22,001 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5af223e668aa8b86ae636f9439d9ac4f153fc620faa9da4461ac4ba5e2c60ee8 [2024-11-22 03:44:22,201 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-22 03:44:22,225 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-22 03:44:22,227 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-22 03:44:22,228 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-22 03:44:22,228 INFO L274 PluginConnector]: CDTParser initialized [2024-11-22 03:44:22,229 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/pals_lcr.3.ufo.UNBOUNDED.pals+Problem12_label00.c [2024-11-22 03:44:23,495 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-22 03:44:23,834 INFO L384 CDTParser]: Found 1 translation units. [2024-11-22 03:44:23,835 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pals_lcr.3.ufo.UNBOUNDED.pals+Problem12_label00.c [2024-11-22 03:44:23,854 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7cece503b/6c9d392f7e924a4ea5670b8ba874f868/FLAGa7559a6d5 [2024-11-22 03:44:24,048 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7cece503b/6c9d392f7e924a4ea5670b8ba874f868 [2024-11-22 03:44:24,050 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-22 03:44:24,051 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-22 03:44:24,052 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-22 03:44:24,052 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-22 03:44:24,056 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-22 03:44:24,056 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 03:44:24" (1/1) ... [2024-11-22 03:44:24,057 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5545de6a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:44:24, skipping insertion in model container [2024-11-22 03:44:24,057 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 03:44:24" (1/1) ... [2024-11-22 03:44:24,139 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-22 03:44:24,387 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pals_lcr.3.ufo.UNBOUNDED.pals+Problem12_label00.c[6450,6463] [2024-11-22 03:44:24,406 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pals_lcr.3.ufo.UNBOUNDED.pals+Problem12_label00.c[8325,8338] [2024-11-22 03:44:24,968 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 03:44:25,007 INFO L200 MainTranslator]: Completed pre-run [2024-11-22 03:44:25,034 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pals_lcr.3.ufo.UNBOUNDED.pals+Problem12_label00.c[6450,6463] [2024-11-22 03:44:25,040 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pals_lcr.3.ufo.UNBOUNDED.pals+Problem12_label00.c[8325,8338] [2024-11-22 03:44:25,334 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 03:44:25,355 INFO L204 MainTranslator]: Completed translation [2024-11-22 03:44:25,356 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:44:25 WrapperNode [2024-11-22 03:44:25,356 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-22 03:44:25,357 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-22 03:44:25,357 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-22 03:44:25,357 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-22 03:44:25,363 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:44:25" (1/1) ... [2024-11-22 03:44:25,394 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:44:25" (1/1) ... [2024-11-22 03:44:25,616 INFO L138 Inliner]: procedures = 35, calls = 20, calls flagged for inlining = 15, calls inlined = 15, statements flattened = 4983 [2024-11-22 03:44:25,616 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-22 03:44:25,617 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-22 03:44:25,617 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-22 03:44:25,617 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-22 03:44:25,626 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:44:25" (1/1) ... [2024-11-22 03:44:25,626 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:44:25" (1/1) ... [2024-11-22 03:44:25,660 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:44:25" (1/1) ... [2024-11-22 03:44:25,785 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-22 03:44:25,786 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:44:25" (1/1) ... [2024-11-22 03:44:25,786 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:44:25" (1/1) ... [2024-11-22 03:44:25,881 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:44:25" (1/1) ... [2024-11-22 03:44:25,904 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:44:25" (1/1) ... [2024-11-22 03:44:25,927 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:44:25" (1/1) ... [2024-11-22 03:44:25,941 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:44:25" (1/1) ... [2024-11-22 03:44:25,987 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-22 03:44:25,989 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-22 03:44:25,989 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-22 03:44:25,989 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-22 03:44:25,990 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:44:25" (1/1) ... [2024-11-22 03:44:25,994 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 03:44:26,002 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 03:44:26,016 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-22 03:44:26,017 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-22 03:44:26,053 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-22 03:44:26,053 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-22 03:44:26,053 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-22 03:44:26,053 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-22 03:44:26,141 INFO L238 CfgBuilder]: Building ICFG [2024-11-22 03:44:26,143 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-22 03:44:29,243 INFO L? ?]: Removed 734 outVars from TransFormulas that were not future-live. [2024-11-22 03:44:29,244 INFO L287 CfgBuilder]: Performing block encoding [2024-11-22 03:44:29,279 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-22 03:44:29,280 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-22 03:44:29,280 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 03:44:29 BoogieIcfgContainer [2024-11-22 03:44:29,284 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-22 03:44:29,286 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-22 03:44:29,287 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-22 03:44:29,289 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-22 03:44:29,289 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 03:44:24" (1/3) ... [2024-11-22 03:44:29,290 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@270af34f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 03:44:29, skipping insertion in model container [2024-11-22 03:44:29,290 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:44:25" (2/3) ... [2024-11-22 03:44:29,290 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@270af34f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 03:44:29, skipping insertion in model container [2024-11-22 03:44:29,291 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 03:44:29" (3/3) ... [2024-11-22 03:44:29,292 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.3.ufo.UNBOUNDED.pals+Problem12_label00.c [2024-11-22 03:44:29,304 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-22 03:44:29,305 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-22 03:44:29,361 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 03:44:29,368 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;@7e485d91, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 03:44:29,369 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-22 03:44:29,375 INFO L276 IsEmpty]: Start isEmpty. Operand has 874 states, 871 states have (on average 1.9058553386911596) internal successors, (1660), 873 states have internal predecessors, (1660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:44:29,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-11-22 03:44:29,380 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 03:44:29,381 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 03:44:29,381 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 03:44:29,385 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 03:44:29,385 INFO L85 PathProgramCache]: Analyzing trace with hash 1102834421, now seen corresponding path program 1 times [2024-11-22 03:44:29,391 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 03:44:29,392 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [450771354] [2024-11-22 03:44:29,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:44:29,392 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 03:44:29,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:44:29,576 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 03:44:29,577 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 03:44:29,577 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [450771354] [2024-11-22 03:44:29,577 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [450771354] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 03:44:29,578 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 03:44:29,578 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 03:44:29,579 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [605279020] [2024-11-22 03:44:29,580 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 03:44:29,582 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 03:44:29,583 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 03:44:29,600 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 03:44:29,601 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 03:44:29,604 INFO L87 Difference]: Start difference. First operand has 874 states, 871 states have (on average 1.9058553386911596) internal successors, (1660), 873 states have internal predecessors, (1660), 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 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 2 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:44:32,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 03:44:32,327 INFO L93 Difference]: Finished difference Result 2479 states and 4780 transitions. [2024-11-22 03:44:32,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 03:44:32,329 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 2 states have internal predecessors, (16), 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 16 [2024-11-22 03:44:32,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 03:44:32,349 INFO L225 Difference]: With dead ends: 2479 [2024-11-22 03:44:32,349 INFO L226 Difference]: Without dead ends: 1559 [2024-11-22 03:44:32,353 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 03:44:32,356 INFO L432 NwaCegarLoop]: 560 mSDtfsCounter, 907 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 2334 mSolverCounterSat, 651 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 907 SdHoareTripleChecker+Valid, 571 SdHoareTripleChecker+Invalid, 2985 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 651 IncrementalHoareTripleChecker+Valid, 2334 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2024-11-22 03:44:32,356 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [907 Valid, 571 Invalid, 2985 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [651 Valid, 2334 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2024-11-22 03:44:32,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1559 states. [2024-11-22 03:44:32,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1559 to 1559. [2024-11-22 03:44:32,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1559 states, 1557 states have (on average 1.640333975594091) internal successors, (2554), 1558 states have internal predecessors, (2554), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:44:32,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1559 states to 1559 states and 2554 transitions. [2024-11-22 03:44:32,437 INFO L78 Accepts]: Start accepts. Automaton has 1559 states and 2554 transitions. Word has length 16 [2024-11-22 03:44:32,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 03:44:32,437 INFO L471 AbstractCegarLoop]: Abstraction has 1559 states and 2554 transitions. [2024-11-22 03:44:32,438 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 2 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:44:32,438 INFO L276 IsEmpty]: Start isEmpty. Operand 1559 states and 2554 transitions. [2024-11-22 03:44:32,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-11-22 03:44:32,438 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 03:44:32,438 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] [2024-11-22 03:44:32,439 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-22 03:44:32,439 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 03:44:32,440 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 03:44:32,440 INFO L85 PathProgramCache]: Analyzing trace with hash -1945522798, now seen corresponding path program 1 times [2024-11-22 03:44:32,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 03:44:32,440 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1870484743] [2024-11-22 03:44:32,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:44:32,440 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 03:44:32,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:44:32,592 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 03:44:32,592 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 03:44:32,592 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1870484743] [2024-11-22 03:44:32,592 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1870484743] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 03:44:32,593 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 03:44:32,593 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 03:44:32,593 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1753165842] [2024-11-22 03:44:32,593 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 03:44:32,594 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 03:44:32,594 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 03:44:32,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 03:44:32,594 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 03:44:32,595 INFO L87 Difference]: Start difference. First operand 1559 states and 2554 transitions. Second operand has 5 states, 5 states have (on average 4.0) internal successors, (20), 5 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) [2024-11-22 03:44:32,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 03:44:32,642 INFO L93 Difference]: Finished difference Result 1595 states and 2608 transitions. [2024-11-22 03:44:32,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 03:44:32,642 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.0) internal successors, (20), 5 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 [2024-11-22 03:44:32,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 03:44:32,647 INFO L225 Difference]: With dead ends: 1595 [2024-11-22 03:44:32,647 INFO L226 Difference]: Without dead ends: 1559 [2024-11-22 03:44:32,648 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 03:44:32,649 INFO L432 NwaCegarLoop]: 1525 mSDtfsCounter, 0 mSDsluCounter, 4554 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 6079 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 03:44:32,649 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 6079 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 03:44:32,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1559 states. [2024-11-22 03:44:32,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1559 to 1559. [2024-11-22 03:44:32,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1559 states, 1557 states have (on average 1.630057803468208) internal successors, (2538), 1558 states have internal predecessors, (2538), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:44:32,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1559 states to 1559 states and 2538 transitions. [2024-11-22 03:44:32,670 INFO L78 Accepts]: Start accepts. Automaton has 1559 states and 2538 transitions. Word has length 20 [2024-11-22 03:44:32,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 03:44:32,670 INFO L471 AbstractCegarLoop]: Abstraction has 1559 states and 2538 transitions. [2024-11-22 03:44:32,670 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.0) internal successors, (20), 5 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) [2024-11-22 03:44:32,671 INFO L276 IsEmpty]: Start isEmpty. Operand 1559 states and 2538 transitions. [2024-11-22 03:44:32,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2024-11-22 03:44:32,671 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 03:44:32,672 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] [2024-11-22 03:44:32,672 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-22 03:44:32,672 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 03:44:32,672 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 03:44:32,672 INFO L85 PathProgramCache]: Analyzing trace with hash 1226597962, now seen corresponding path program 1 times [2024-11-22 03:44:32,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 03:44:32,673 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [859463436] [2024-11-22 03:44:32,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:44:32,673 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 03:44:32,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:44:32,798 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 03:44:32,800 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 03:44:32,800 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [859463436] [2024-11-22 03:44:32,800 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [859463436] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 03:44:32,800 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 03:44:32,800 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 03:44:32,800 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1990963169] [2024-11-22 03:44:32,801 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 03:44:32,801 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 03:44:32,801 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 03:44:32,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 03:44:32,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 03:44:32,802 INFO L87 Difference]: Start difference. First operand 1559 states and 2538 transitions. Second operand has 5 states, 5 states have (on average 7.0) internal successors, (35), 5 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:44:32,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 03:44:32,890 INFO L93 Difference]: Finished difference Result 1751 states and 2838 transitions. [2024-11-22 03:44:32,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-22 03:44:32,891 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 5 states have internal predecessors, (35), 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 35 [2024-11-22 03:44:32,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 03:44:32,897 INFO L225 Difference]: With dead ends: 1751 [2024-11-22 03:44:32,898 INFO L226 Difference]: Without dead ends: 1719 [2024-11-22 03:44:32,901 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-22 03:44:32,902 INFO L432 NwaCegarLoop]: 1505 mSDtfsCounter, 4682 mSDsluCounter, 253 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4682 SdHoareTripleChecker+Valid, 1758 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 03:44:32,902 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4682 Valid, 1758 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 03:44:32,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1719 states. [2024-11-22 03:44:32,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1719 to 1589. [2024-11-22 03:44:32,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1589 states, 1587 states have (on average 1.6288594833018273) internal successors, (2585), 1588 states have internal predecessors, (2585), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:44:32,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1589 states to 1589 states and 2585 transitions. [2024-11-22 03:44:32,930 INFO L78 Accepts]: Start accepts. Automaton has 1589 states and 2585 transitions. Word has length 35 [2024-11-22 03:44:32,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 03:44:32,933 INFO L471 AbstractCegarLoop]: Abstraction has 1589 states and 2585 transitions. [2024-11-22 03:44:32,933 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 5 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:44:32,933 INFO L276 IsEmpty]: Start isEmpty. Operand 1589 states and 2585 transitions. [2024-11-22 03:44:32,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2024-11-22 03:44:32,934 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 03:44:32,934 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 03:44:32,935 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-22 03:44:32,935 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 03:44:32,936 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 03:44:32,938 INFO L85 PathProgramCache]: Analyzing trace with hash 523901274, now seen corresponding path program 1 times [2024-11-22 03:44:32,938 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 03:44:32,939 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1243422350] [2024-11-22 03:44:32,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:44:32,939 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 03:44:32,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:44:33,012 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 03:44:33,013 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 03:44:33,013 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1243422350] [2024-11-22 03:44:33,013 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1243422350] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 03:44:33,013 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 03:44:33,013 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 03:44:33,013 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1626968268] [2024-11-22 03:44:33,014 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 03:44:33,014 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 03:44:33,014 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 03:44:33,015 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 03:44:33,015 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 03:44:33,015 INFO L87 Difference]: Start difference. First operand 1589 states and 2585 transitions. Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:44:33,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 03:44:33,045 INFO L93 Difference]: Finished difference Result 1702 states and 2760 transitions. [2024-11-22 03:44:33,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 03:44:33,046 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2024-11-22 03:44:33,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 03:44:33,050 INFO L225 Difference]: With dead ends: 1702 [2024-11-22 03:44:33,050 INFO L226 Difference]: Without dead ends: 1640 [2024-11-22 03:44:33,051 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 03:44:33,052 INFO L432 NwaCegarLoop]: 1507 mSDtfsCounter, 1468 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1468 SdHoareTripleChecker+Valid, 1550 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 03:44:33,052 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1468 Valid, 1550 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 03:44:33,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1640 states. [2024-11-22 03:44:33,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1640 to 1636. [2024-11-22 03:44:33,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1636 states, 1634 states have (on average 1.6248470012239902) internal successors, (2655), 1635 states have internal predecessors, (2655), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:44:33,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1636 states to 1636 states and 2655 transitions. [2024-11-22 03:44:33,112 INFO L78 Accepts]: Start accepts. Automaton has 1636 states and 2655 transitions. Word has length 37 [2024-11-22 03:44:33,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 03:44:33,113 INFO L471 AbstractCegarLoop]: Abstraction has 1636 states and 2655 transitions. [2024-11-22 03:44:33,113 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:44:33,113 INFO L276 IsEmpty]: Start isEmpty. Operand 1636 states and 2655 transitions. [2024-11-22 03:44:33,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2024-11-22 03:44:33,116 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 03:44:33,117 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 03:44:33,117 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-22 03:44:33,117 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 03:44:33,118 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 03:44:33,118 INFO L85 PathProgramCache]: Analyzing trace with hash 590394786, now seen corresponding path program 1 times [2024-11-22 03:44:33,118 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 03:44:33,118 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [403409997] [2024-11-22 03:44:33,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:44:33,119 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 03:44:33,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:44:33,268 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 03:44:33,268 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 03:44:33,269 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [403409997] [2024-11-22 03:44:33,269 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [403409997] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 03:44:33,269 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 03:44:33,269 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 03:44:33,269 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1580292970] [2024-11-22 03:44:33,269 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 03:44:33,270 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 03:44:33,270 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 03:44:33,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 03:44:33,271 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-22 03:44:33,271 INFO L87 Difference]: Start difference. First operand 1636 states and 2655 transitions. Second operand has 5 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:44:33,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 03:44:33,346 INFO L93 Difference]: Finished difference Result 1747 states and 2823 transitions. [2024-11-22 03:44:33,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 03:44:33,347 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2024-11-22 03:44:33,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 03:44:33,352 INFO L225 Difference]: With dead ends: 1747 [2024-11-22 03:44:33,353 INFO L226 Difference]: Without dead ends: 1638 [2024-11-22 03:44:33,354 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2024-11-22 03:44:33,357 INFO L432 NwaCegarLoop]: 1506 mSDtfsCounter, 4426 mSDsluCounter, 92 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4426 SdHoareTripleChecker+Valid, 1598 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 03:44:33,357 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4426 Valid, 1598 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 03:44:33,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1638 states. [2024-11-22 03:44:33,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1638 to 1636. [2024-11-22 03:44:33,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1636 states, 1634 states have (on average 1.6236230110159118) internal successors, (2653), 1635 states have internal predecessors, (2653), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:44:33,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1636 states to 1636 states and 2653 transitions. [2024-11-22 03:44:33,386 INFO L78 Accepts]: Start accepts. Automaton has 1636 states and 2653 transitions. Word has length 37 [2024-11-22 03:44:33,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 03:44:33,386 INFO L471 AbstractCegarLoop]: Abstraction has 1636 states and 2653 transitions. [2024-11-22 03:44:33,387 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:44:33,387 INFO L276 IsEmpty]: Start isEmpty. Operand 1636 states and 2653 transitions. [2024-11-22 03:44:33,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2024-11-22 03:44:33,388 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 03:44:33,388 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] [2024-11-22 03:44:33,388 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-22 03:44:33,388 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 03:44:33,389 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 03:44:33,389 INFO L85 PathProgramCache]: Analyzing trace with hash 707645968, now seen corresponding path program 1 times [2024-11-22 03:44:33,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 03:44:33,389 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [789369859] [2024-11-22 03:44:33,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:44:33,389 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 03:44:33,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:44:33,594 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 03:44:33,594 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 03:44:33,594 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [789369859] [2024-11-22 03:44:33,594 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [789369859] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 03:44:33,594 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 03:44:33,594 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-22 03:44:33,595 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [578059021] [2024-11-22 03:44:33,595 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 03:44:33,595 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-22 03:44:33,595 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 03:44:33,595 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-22 03:44:33,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-22 03:44:33,596 INFO L87 Difference]: Start difference. First operand 1636 states and 2653 transitions. Second operand has 8 states, 8 states have (on average 4.75) internal successors, (38), 8 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:44:33,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 03:44:33,674 INFO L93 Difference]: Finished difference Result 1644 states and 2662 transitions. [2024-11-22 03:44:33,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-22 03:44:33,674 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.75) internal successors, (38), 8 states have internal predecessors, (38), 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 38 [2024-11-22 03:44:33,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 03:44:33,679 INFO L225 Difference]: With dead ends: 1644 [2024-11-22 03:44:33,679 INFO L226 Difference]: Without dead ends: 1642 [2024-11-22 03:44:33,680 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-22 03:44:33,681 INFO L432 NwaCegarLoop]: 1505 mSDtfsCounter, 0 mSDsluCounter, 9017 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 10522 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 03:44:33,681 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 10522 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 03:44:33,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1642 states. [2024-11-22 03:44:33,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1642 to 1642. [2024-11-22 03:44:33,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1642 states, 1640 states have (on average 1.6207317073170733) internal successors, (2658), 1641 states have internal predecessors, (2658), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:44:33,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1642 states to 1642 states and 2658 transitions. [2024-11-22 03:44:33,709 INFO L78 Accepts]: Start accepts. Automaton has 1642 states and 2658 transitions. Word has length 38 [2024-11-22 03:44:33,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 03:44:33,709 INFO L471 AbstractCegarLoop]: Abstraction has 1642 states and 2658 transitions. [2024-11-22 03:44:33,709 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.75) internal successors, (38), 8 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:44:33,709 INFO L276 IsEmpty]: Start isEmpty. Operand 1642 states and 2658 transitions. [2024-11-22 03:44:33,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2024-11-22 03:44:33,710 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 03:44:33,710 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] [2024-11-22 03:44:33,710 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-22 03:44:33,711 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 03:44:33,711 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 03:44:33,711 INFO L85 PathProgramCache]: Analyzing trace with hash 1903217474, now seen corresponding path program 1 times [2024-11-22 03:44:33,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 03:44:33,711 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1976815222] [2024-11-22 03:44:33,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:44:33,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 03:44:33,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:44:33,746 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 03:44:33,746 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 03:44:33,746 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1976815222] [2024-11-22 03:44:33,746 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1976815222] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 03:44:33,747 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 03:44:33,747 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 03:44:33,747 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2034459665] [2024-11-22 03:44:33,747 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 03:44:33,747 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 03:44:33,747 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 03:44:33,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 03:44:33,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 03:44:33,748 INFO L87 Difference]: Start difference. First operand 1642 states and 2658 transitions. Second operand has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:44:33,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 03:44:33,774 INFO L93 Difference]: Finished difference Result 1856 states and 2970 transitions. [2024-11-22 03:44:33,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 03:44:33,775 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 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 39 [2024-11-22 03:44:33,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 03:44:33,780 INFO L225 Difference]: With dead ends: 1856 [2024-11-22 03:44:33,780 INFO L226 Difference]: Without dead ends: 1741 [2024-11-22 03:44:33,781 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 03:44:33,783 INFO L432 NwaCegarLoop]: 1528 mSDtfsCounter, 1475 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1475 SdHoareTripleChecker+Valid, 1587 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 03:44:33,783 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1475 Valid, 1587 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 03:44:33,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1741 states. [2024-11-22 03:44:33,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1741 to 1739. [2024-11-22 03:44:33,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1739 states, 1737 states have (on average 1.6090961427748993) internal successors, (2795), 1738 states have internal predecessors, (2795), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:44:33,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1739 states to 1739 states and 2795 transitions. [2024-11-22 03:44:33,809 INFO L78 Accepts]: Start accepts. Automaton has 1739 states and 2795 transitions. Word has length 39 [2024-11-22 03:44:33,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 03:44:33,810 INFO L471 AbstractCegarLoop]: Abstraction has 1739 states and 2795 transitions. [2024-11-22 03:44:33,810 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:44:33,811 INFO L276 IsEmpty]: Start isEmpty. Operand 1739 states and 2795 transitions. [2024-11-22 03:44:33,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2024-11-22 03:44:33,811 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 03:44:33,811 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] [2024-11-22 03:44:33,812 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-22 03:44:33,812 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 03:44:33,812 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 03:44:33,812 INFO L85 PathProgramCache]: Analyzing trace with hash 122284610, now seen corresponding path program 1 times [2024-11-22 03:44:33,812 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 03:44:33,813 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [103189684] [2024-11-22 03:44:33,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:44:33,813 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 03:44:33,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:44:33,845 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 03:44:33,846 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 03:44:33,846 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [103189684] [2024-11-22 03:44:33,846 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [103189684] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 03:44:33,846 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 03:44:33,846 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 03:44:33,846 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2084550401] [2024-11-22 03:44:33,847 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 03:44:33,847 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 03:44:33,847 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 03:44:33,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 03:44:33,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 03:44:33,849 INFO L87 Difference]: Start difference. First operand 1739 states and 2795 transitions. Second operand has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:44:33,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 03:44:33,870 INFO L93 Difference]: Finished difference Result 2131 states and 3353 transitions. [2024-11-22 03:44:33,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 03:44:33,871 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 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 39 [2024-11-22 03:44:33,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 03:44:33,876 INFO L225 Difference]: With dead ends: 2131 [2024-11-22 03:44:33,876 INFO L226 Difference]: Without dead ends: 1919 [2024-11-22 03:44:33,877 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 03:44:33,877 INFO L432 NwaCegarLoop]: 1538 mSDtfsCounter, 1477 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1477 SdHoareTripleChecker+Valid, 1593 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 03:44:33,878 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1477 Valid, 1593 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 03:44:33,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1919 states. [2024-11-22 03:44:33,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1919 to 1917. [2024-11-22 03:44:33,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1917 states, 1915 states have (on average 1.5859007832898173) internal successors, (3037), 1916 states have internal predecessors, (3037), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:44:33,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1917 states to 1917 states and 3037 transitions. [2024-11-22 03:44:33,909 INFO L78 Accepts]: Start accepts. Automaton has 1917 states and 3037 transitions. Word has length 39 [2024-11-22 03:44:33,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 03:44:33,909 INFO L471 AbstractCegarLoop]: Abstraction has 1917 states and 3037 transitions. [2024-11-22 03:44:33,909 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:44:33,910 INFO L276 IsEmpty]: Start isEmpty. Operand 1917 states and 3037 transitions. [2024-11-22 03:44:33,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2024-11-22 03:44:33,910 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 03:44:33,910 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] [2024-11-22 03:44:33,910 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-22 03:44:33,910 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 03:44:33,911 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 03:44:33,911 INFO L85 PathProgramCache]: Analyzing trace with hash -1688735299, now seen corresponding path program 1 times [2024-11-22 03:44:33,911 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 03:44:33,911 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [599455885] [2024-11-22 03:44:33,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:44:33,911 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 03:44:33,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:44:33,945 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 03:44:33,945 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 03:44:33,945 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [599455885] [2024-11-22 03:44:33,945 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [599455885] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 03:44:33,946 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 03:44:33,946 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 03:44:33,946 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [182103216] [2024-11-22 03:44:33,946 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 03:44:33,946 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 03:44:33,947 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 03:44:33,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 03:44:33,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 03:44:33,948 INFO L87 Difference]: Start difference. First operand 1917 states and 3037 transitions. Second operand has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:44:33,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 03:44:33,971 INFO L93 Difference]: Finished difference Result 2340 states and 3643 transitions. [2024-11-22 03:44:33,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 03:44:33,972 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 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 41 [2024-11-22 03:44:33,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 03:44:33,978 INFO L225 Difference]: With dead ends: 2340 [2024-11-22 03:44:33,978 INFO L226 Difference]: Without dead ends: 2105 [2024-11-22 03:44:33,979 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 03:44:33,980 INFO L432 NwaCegarLoop]: 1543 mSDtfsCounter, 1476 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1476 SdHoareTripleChecker+Valid, 1594 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 03:44:33,981 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1476 Valid, 1594 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 03:44:33,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2105 states. [2024-11-22 03:44:34,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2105 to 2103. [2024-11-22 03:44:34,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2103 states, 2101 states have (on average 1.5663969538315088) internal successors, (3291), 2102 states have internal predecessors, (3291), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:44:34,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2103 states to 2103 states and 3291 transitions. [2024-11-22 03:44:34,012 INFO L78 Accepts]: Start accepts. Automaton has 2103 states and 3291 transitions. Word has length 41 [2024-11-22 03:44:34,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 03:44:34,013 INFO L471 AbstractCegarLoop]: Abstraction has 2103 states and 3291 transitions. [2024-11-22 03:44:34,013 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:44:34,013 INFO L276 IsEmpty]: Start isEmpty. Operand 2103 states and 3291 transitions. [2024-11-22 03:44:34,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2024-11-22 03:44:34,014 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 03:44:34,014 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] [2024-11-22 03:44:34,015 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-22 03:44:34,015 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 03:44:34,018 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 03:44:34,018 INFO L85 PathProgramCache]: Analyzing trace with hash 923003988, now seen corresponding path program 1 times [2024-11-22 03:44:34,018 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 03:44:34,018 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [418066656] [2024-11-22 03:44:34,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:44:34,018 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 03:44:34,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:44:34,118 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-22 03:44:34,119 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 03:44:34,119 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [418066656] [2024-11-22 03:44:34,119 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [418066656] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 03:44:34,119 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 03:44:34,119 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 03:44:34,119 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1939170905] [2024-11-22 03:44:34,119 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 03:44:34,119 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 03:44:34,120 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 03:44:34,120 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 03:44:34,120 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-22 03:44:34,120 INFO L87 Difference]: Start difference. First operand 2103 states and 3291 transitions. Second operand has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:44:34,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 03:44:34,194 INFO L93 Difference]: Finished difference Result 3959 states and 5871 transitions. [2024-11-22 03:44:34,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 03:44:34,195 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 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 [2024-11-22 03:44:34,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 03:44:34,205 INFO L225 Difference]: With dead ends: 3959 [2024-11-22 03:44:34,206 INFO L226 Difference]: Without dead ends: 3385 [2024-11-22 03:44:34,208 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-11-22 03:44:34,208 INFO L432 NwaCegarLoop]: 1551 mSDtfsCounter, 3061 mSDsluCounter, 1596 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3061 SdHoareTripleChecker+Valid, 3147 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 03:44:34,208 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3061 Valid, 3147 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 03:44:34,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3385 states. [2024-11-22 03:44:34,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3385 to 2675. [2024-11-22 03:44:34,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2675 states, 2673 states have (on average 1.5260007482229705) internal successors, (4079), 2674 states have internal predecessors, (4079), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:44:34,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2675 states to 2675 states and 4079 transitions. [2024-11-22 03:44:34,256 INFO L78 Accepts]: Start accepts. Automaton has 2675 states and 4079 transitions. Word has length 54 [2024-11-22 03:44:34,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 03:44:34,257 INFO L471 AbstractCegarLoop]: Abstraction has 2675 states and 4079 transitions. [2024-11-22 03:44:34,257 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:44:34,257 INFO L276 IsEmpty]: Start isEmpty. Operand 2675 states and 4079 transitions. [2024-11-22 03:44:34,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2024-11-22 03:44:34,257 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 03:44:34,258 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] [2024-11-22 03:44:34,258 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-22 03:44:34,258 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 03:44:34,258 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 03:44:34,258 INFO L85 PathProgramCache]: Analyzing trace with hash -857928876, now seen corresponding path program 1 times [2024-11-22 03:44:34,258 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 03:44:34,258 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2095827429] [2024-11-22 03:44:34,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:44:34,258 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 03:44:34,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:44:34,331 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-22 03:44:34,331 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 03:44:34,331 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2095827429] [2024-11-22 03:44:34,331 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2095827429] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 03:44:34,332 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 03:44:34,332 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 03:44:34,332 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1389970927] [2024-11-22 03:44:34,332 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 03:44:34,332 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 03:44:34,332 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 03:44:34,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 03:44:34,332 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-22 03:44:34,333 INFO L87 Difference]: Start difference. First operand 2675 states and 4079 transitions. Second operand has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:44:34,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 03:44:34,420 INFO L93 Difference]: Finished difference Result 4531 states and 6659 transitions. [2024-11-22 03:44:34,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 03:44:34,420 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 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 [2024-11-22 03:44:34,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 03:44:34,430 INFO L225 Difference]: With dead ends: 4531 [2024-11-22 03:44:34,430 INFO L226 Difference]: Without dead ends: 3957 [2024-11-22 03:44:34,432 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-11-22 03:44:34,432 INFO L432 NwaCegarLoop]: 1552 mSDtfsCounter, 3053 mSDsluCounter, 1607 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3053 SdHoareTripleChecker+Valid, 3159 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 03:44:34,432 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3053 Valid, 3159 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 03:44:34,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3957 states. [2024-11-22 03:44:34,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3957 to 3535. [2024-11-22 03:44:34,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3535 states, 3533 states have (on average 1.486272289838664) internal successors, (5251), 3534 states have internal predecessors, (5251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:44:34,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3535 states to 3535 states and 5251 transitions. [2024-11-22 03:44:34,527 INFO L78 Accepts]: Start accepts. Automaton has 3535 states and 5251 transitions. Word has length 54 [2024-11-22 03:44:34,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 03:44:34,527 INFO L471 AbstractCegarLoop]: Abstraction has 3535 states and 5251 transitions. [2024-11-22 03:44:34,527 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:44:34,527 INFO L276 IsEmpty]: Start isEmpty. Operand 3535 states and 5251 transitions. [2024-11-22 03:44:34,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-11-22 03:44:34,528 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 03:44:34,529 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] [2024-11-22 03:44:34,529 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-22 03:44:34,529 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 03:44:34,530 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 03:44:34,530 INFO L85 PathProgramCache]: Analyzing trace with hash 894361900, now seen corresponding path program 1 times [2024-11-22 03:44:34,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 03:44:34,530 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1532885727] [2024-11-22 03:44:34,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:44:34,530 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 03:44:34,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:44:34,597 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 03:44:34,598 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 03:44:34,598 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1532885727] [2024-11-22 03:44:34,598 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1532885727] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 03:44:34,598 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 03:44:34,598 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 03:44:34,598 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [896723875] [2024-11-22 03:44:34,598 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 03:44:34,598 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 03:44:34,599 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 03:44:34,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 03:44:34,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 03:44:34,599 INFO L87 Difference]: Start difference. First operand 3535 states and 5251 transitions. Second operand has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:44:34,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 03:44:34,646 INFO L93 Difference]: Finished difference Result 5011 states and 7314 transitions. [2024-11-22 03:44:34,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 03:44:34,646 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 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 56 [2024-11-22 03:44:34,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 03:44:34,658 INFO L225 Difference]: With dead ends: 5011 [2024-11-22 03:44:34,658 INFO L226 Difference]: Without dead ends: 3005 [2024-11-22 03:44:34,661 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 03:44:34,662 INFO L432 NwaCegarLoop]: 1535 mSDtfsCounter, 34 mSDsluCounter, 1496 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 3031 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 03:44:34,662 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 3031 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 03:44:34,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3005 states. [2024-11-22 03:44:34,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3005 to 3003. [2024-11-22 03:44:34,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3003 states, 3001 states have (on average 1.5071642785738086) internal successors, (4523), 3002 states have internal predecessors, (4523), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:44:34,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3003 states to 3003 states and 4523 transitions. [2024-11-22 03:44:34,721 INFO L78 Accepts]: Start accepts. Automaton has 3003 states and 4523 transitions. Word has length 56 [2024-11-22 03:44:34,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 03:44:34,721 INFO L471 AbstractCegarLoop]: Abstraction has 3003 states and 4523 transitions. [2024-11-22 03:44:34,721 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:44:34,722 INFO L276 IsEmpty]: Start isEmpty. Operand 3003 states and 4523 transitions. [2024-11-22 03:44:34,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-11-22 03:44:34,722 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 03:44:34,722 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] [2024-11-22 03:44:34,723 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-22 03:44:34,723 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 03:44:34,723 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 03:44:34,723 INFO L85 PathProgramCache]: Analyzing trace with hash 1218909775, now seen corresponding path program 1 times [2024-11-22 03:44:34,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 03:44:34,723 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1911105169] [2024-11-22 03:44:34,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:44:34,724 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 03:44:34,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:44:34,790 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-22 03:44:34,791 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 03:44:34,791 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1911105169] [2024-11-22 03:44:34,791 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1911105169] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 03:44:34,791 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 03:44:34,791 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 03:44:34,791 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [29878615] [2024-11-22 03:44:34,791 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 03:44:34,791 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 03:44:34,791 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 03:44:34,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 03:44:34,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-22 03:44:34,792 INFO L87 Difference]: Start difference. First operand 3003 states and 4523 transitions. Second operand has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:44:34,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 03:44:34,869 INFO L93 Difference]: Finished difference Result 4259 states and 6279 transitions. [2024-11-22 03:44:34,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 03:44:34,869 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 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 56 [2024-11-22 03:44:34,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 03:44:34,875 INFO L225 Difference]: With dead ends: 4259 [2024-11-22 03:44:34,875 INFO L226 Difference]: Without dead ends: 3841 [2024-11-22 03:44:34,876 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-11-22 03:44:34,877 INFO L432 NwaCegarLoop]: 1549 mSDtfsCounter, 3051 mSDsluCounter, 1598 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3051 SdHoareTripleChecker+Valid, 3147 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 03:44:34,877 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3051 Valid, 3147 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 03:44:34,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3841 states. [2024-11-22 03:44:34,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3841 to 3419. [2024-11-22 03:44:34,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3419 states, 3417 states have (on average 1.492244659057653) internal successors, (5099), 3418 states have internal predecessors, (5099), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:44:34,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3419 states to 3419 states and 5099 transitions. [2024-11-22 03:44:34,937 INFO L78 Accepts]: Start accepts. Automaton has 3419 states and 5099 transitions. Word has length 56 [2024-11-22 03:44:34,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 03:44:34,937 INFO L471 AbstractCegarLoop]: Abstraction has 3419 states and 5099 transitions. [2024-11-22 03:44:34,938 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:44:34,938 INFO L276 IsEmpty]: Start isEmpty. Operand 3419 states and 5099 transitions. [2024-11-22 03:44:34,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-11-22 03:44:34,938 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 03:44:34,938 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] [2024-11-22 03:44:34,939 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-22 03:44:34,939 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 03:44:34,939 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 03:44:34,943 INFO L85 PathProgramCache]: Analyzing trace with hash -877348108, now seen corresponding path program 1 times [2024-11-22 03:44:34,943 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 03:44:34,943 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [985537249] [2024-11-22 03:44:34,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:44:34,943 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 03:44:34,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:44:35,002 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 03:44:35,002 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 03:44:35,002 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [985537249] [2024-11-22 03:44:35,003 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [985537249] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 03:44:35,003 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 03:44:35,003 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 03:44:35,003 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1039187846] [2024-11-22 03:44:35,003 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 03:44:35,003 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 03:44:35,003 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 03:44:35,004 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 03:44:35,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 03:44:35,004 INFO L87 Difference]: Start difference. First operand 3419 states and 5099 transitions. Second operand has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:44:35,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 03:44:35,047 INFO L93 Difference]: Finished difference Result 4359 states and 6397 transitions. [2024-11-22 03:44:35,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 03:44:35,048 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 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 57 [2024-11-22 03:44:35,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 03:44:35,055 INFO L225 Difference]: With dead ends: 4359 [2024-11-22 03:44:35,056 INFO L226 Difference]: Without dead ends: 2485 [2024-11-22 03:44:35,058 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 03:44:35,058 INFO L432 NwaCegarLoop]: 1528 mSDtfsCounter, 29 mSDsluCounter, 1488 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 3016 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 03:44:35,058 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 3016 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 03:44:35,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2485 states. [2024-11-22 03:44:35,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2485 to 2483. [2024-11-22 03:44:35,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2483 states, 2481 states have (on average 1.5255945183393793) internal successors, (3785), 2482 states have internal predecessors, (3785), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:44:35,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2483 states to 2483 states and 3785 transitions. [2024-11-22 03:44:35,098 INFO L78 Accepts]: Start accepts. Automaton has 2483 states and 3785 transitions. Word has length 57 [2024-11-22 03:44:35,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 03:44:35,098 INFO L471 AbstractCegarLoop]: Abstraction has 2483 states and 3785 transitions. [2024-11-22 03:44:35,098 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:44:35,098 INFO L276 IsEmpty]: Start isEmpty. Operand 2483 states and 3785 transitions. [2024-11-22 03:44:35,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-11-22 03:44:35,099 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 03:44:35,099 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] [2024-11-22 03:44:35,099 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-22 03:44:35,099 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 03:44:35,100 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 03:44:35,100 INFO L85 PathProgramCache]: Analyzing trace with hash 1226511174, now seen corresponding path program 1 times [2024-11-22 03:44:35,100 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 03:44:35,100 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [587290063] [2024-11-22 03:44:35,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:44:35,100 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 03:44:35,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:44:35,171 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 03:44:35,171 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 03:44:35,171 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [587290063] [2024-11-22 03:44:35,172 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [587290063] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 03:44:35,172 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 03:44:35,172 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 03:44:35,172 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [529843257] [2024-11-22 03:44:35,172 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 03:44:35,172 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 03:44:35,173 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 03:44:35,173 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 03:44:35,173 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 03:44:35,173 INFO L87 Difference]: Start difference. First operand 2483 states and 3785 transitions. Second operand has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:44:35,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 03:44:35,197 INFO L93 Difference]: Finished difference Result 2955 states and 4426 transitions. [2024-11-22 03:44:35,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 03:44:35,198 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 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 59 [2024-11-22 03:44:35,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 03:44:35,201 INFO L225 Difference]: With dead ends: 2955 [2024-11-22 03:44:35,201 INFO L226 Difference]: Without dead ends: 2017 [2024-11-22 03:44:35,203 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 03:44:35,204 INFO L432 NwaCegarLoop]: 1521 mSDtfsCounter, 26 mSDsluCounter, 1480 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 3001 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 03:44:35,204 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 3001 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 03:44:35,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2017 states. [2024-11-22 03:44:35,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2017 to 2015. [2024-11-22 03:44:35,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2015 states, 2013 states have (on average 1.5583705911574763) internal successors, (3137), 2014 states have internal predecessors, (3137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:44:35,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2015 states to 2015 states and 3137 transitions. [2024-11-22 03:44:35,233 INFO L78 Accepts]: Start accepts. Automaton has 2015 states and 3137 transitions. Word has length 59 [2024-11-22 03:44:35,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 03:44:35,233 INFO L471 AbstractCegarLoop]: Abstraction has 2015 states and 3137 transitions. [2024-11-22 03:44:35,233 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:44:35,233 INFO L276 IsEmpty]: Start isEmpty. Operand 2015 states and 3137 transitions. [2024-11-22 03:44:35,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-11-22 03:44:35,234 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 03:44:35,234 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] [2024-11-22 03:44:35,234 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-22 03:44:35,234 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 03:44:35,235 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 03:44:35,235 INFO L85 PathProgramCache]: Analyzing trace with hash -1826022888, now seen corresponding path program 1 times [2024-11-22 03:44:35,235 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 03:44:35,236 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1267351709] [2024-11-22 03:44:35,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:44:35,236 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 03:44:35,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:44:36,774 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 9 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 03:44:36,774 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 03:44:36,774 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1267351709] [2024-11-22 03:44:36,774 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1267351709] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 03:44:36,775 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1639244842] [2024-11-22 03:44:36,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:44:36,775 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 03:44:36,775 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 03:44:36,777 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 03:44:36,781 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-22 03:44:36,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:44:36,869 INFO L255 TraceCheckSpWp]: Trace formula consists of 296 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-22 03:44:36,874 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 03:44:37,067 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 4 proven. 7 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-22 03:44:37,067 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 03:44:37,202 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 4 proven. 7 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-22 03:44:37,203 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1639244842] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 03:44:37,203 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 03:44:37,203 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 6, 4] total 19 [2024-11-22 03:44:37,203 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [944215292] [2024-11-22 03:44:37,203 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 03:44:37,203 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-22 03:44:37,203 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 03:44:37,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-22 03:44:37,204 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=294, Unknown=0, NotChecked=0, Total=342 [2024-11-22 03:44:37,204 INFO L87 Difference]: Start difference. First operand 2015 states and 3137 transitions. Second operand has 19 states, 19 states have (on average 8.736842105263158) internal successors, (166), 19 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:44:39,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 03:44:39,544 INFO L93 Difference]: Finished difference Result 4284 states and 6111 transitions. [2024-11-22 03:44:39,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2024-11-22 03:44:39,546 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 8.736842105263158) internal successors, (166), 19 states have internal predecessors, (166), 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 61 [2024-11-22 03:44:39,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 03:44:39,551 INFO L225 Difference]: With dead ends: 4284 [2024-11-22 03:44:39,551 INFO L226 Difference]: Without dead ends: 3814 [2024-11-22 03:44:39,554 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 176 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1097 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=755, Invalid=3027, Unknown=0, NotChecked=0, Total=3782 [2024-11-22 03:44:39,554 INFO L432 NwaCegarLoop]: 1503 mSDtfsCounter, 15563 mSDsluCounter, 6256 mSDsCounter, 0 mSdLazyCounter, 618 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15563 SdHoareTripleChecker+Valid, 7759 SdHoareTripleChecker+Invalid, 663 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 618 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-22 03:44:39,554 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [15563 Valid, 7759 Invalid, 663 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 618 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-22 03:44:39,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3814 states. [2024-11-22 03:44:39,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3814 to 3736. [2024-11-22 03:44:39,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3736 states, 3734 states have (on average 1.4081414033208355) internal successors, (5258), 3735 states have internal predecessors, (5258), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:44:39,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3736 states to 3736 states and 5258 transitions. [2024-11-22 03:44:39,628 INFO L78 Accepts]: Start accepts. Automaton has 3736 states and 5258 transitions. Word has length 61 [2024-11-22 03:44:39,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 03:44:39,629 INFO L471 AbstractCegarLoop]: Abstraction has 3736 states and 5258 transitions. [2024-11-22 03:44:39,629 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 8.736842105263158) internal successors, (166), 19 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:44:39,629 INFO L276 IsEmpty]: Start isEmpty. Operand 3736 states and 5258 transitions. [2024-11-22 03:44:39,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-11-22 03:44:39,632 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 03:44:39,632 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] [2024-11-22 03:44:39,639 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-22 03:44:39,832 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-11-22 03:44:39,833 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 03:44:39,833 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 03:44:39,833 INFO L85 PathProgramCache]: Analyzing trace with hash 168764099, now seen corresponding path program 1 times [2024-11-22 03:44:39,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 03:44:39,833 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [559899668] [2024-11-22 03:44:39,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:44:39,833 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 03:44:39,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:44:40,110 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 11 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 03:44:40,111 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 03:44:40,111 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [559899668] [2024-11-22 03:44:40,111 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [559899668] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 03:44:40,111 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [589592062] [2024-11-22 03:44:40,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:44:40,111 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 03:44:40,111 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 03:44:40,114 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 03:44:40,116 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-22 03:44:40,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:44:40,207 INFO L255 TraceCheckSpWp]: Trace formula consists of 299 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-22 03:44:40,209 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 03:44:40,610 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 7 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 03:44:40,611 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 03:44:41,347 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 7 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 03:44:41,348 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [589592062] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 03:44:41,348 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 03:44:41,349 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 12, 13] total 31 [2024-11-22 03:44:41,349 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [989016773] [2024-11-22 03:44:41,349 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 03:44:41,349 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2024-11-22 03:44:41,349 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 03:44:41,350 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2024-11-22 03:44:41,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=127, Invalid=803, Unknown=0, NotChecked=0, Total=930 [2024-11-22 03:44:41,351 INFO L87 Difference]: Start difference. First operand 3736 states and 5258 transitions. Second operand has 31 states, 31 states have (on average 5.354838709677419) internal successors, (166), 31 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:44:42,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 03:44:42,806 INFO L93 Difference]: Finished difference Result 9187 states and 12165 transitions. [2024-11-22 03:44:42,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2024-11-22 03:44:42,807 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 5.354838709677419) internal successors, (166), 31 states have internal predecessors, (166), 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 62 [2024-11-22 03:44:42,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 03:44:42,816 INFO L225 Difference]: With dead ends: 9187 [2024-11-22 03:44:42,816 INFO L226 Difference]: Without dead ends: 7154 [2024-11-22 03:44:42,819 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 758 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=700, Invalid=2960, Unknown=0, NotChecked=0, Total=3660 [2024-11-22 03:44:42,819 INFO L432 NwaCegarLoop]: 1492 mSDtfsCounter, 13893 mSDsluCounter, 9329 mSDsCounter, 0 mSdLazyCounter, 597 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13893 SdHoareTripleChecker+Valid, 10821 SdHoareTripleChecker+Invalid, 634 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 597 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-22 03:44:42,819 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [13893 Valid, 10821 Invalid, 634 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 597 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-22 03:44:42,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7154 states. [2024-11-22 03:44:42,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7154 to 7112. [2024-11-22 03:44:42,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7112 states, 7110 states have (on average 1.3219409282700423) internal successors, (9399), 7111 states have internal predecessors, (9399), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:44:42,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7112 states to 7112 states and 9399 transitions. [2024-11-22 03:44:42,963 INFO L78 Accepts]: Start accepts. Automaton has 7112 states and 9399 transitions. Word has length 62 [2024-11-22 03:44:42,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 03:44:42,964 INFO L471 AbstractCegarLoop]: Abstraction has 7112 states and 9399 transitions. [2024-11-22 03:44:42,964 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 5.354838709677419) internal successors, (166), 31 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:44:42,964 INFO L276 IsEmpty]: Start isEmpty. Operand 7112 states and 9399 transitions. [2024-11-22 03:44:42,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-11-22 03:44:42,965 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 03:44:42,965 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 03:44:42,971 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-22 03:44:43,165 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-11-22 03:44:43,166 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 03:44:43,166 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 03:44:43,166 INFO L85 PathProgramCache]: Analyzing trace with hash 225757237, now seen corresponding path program 1 times [2024-11-22 03:44:43,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 03:44:43,166 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [795515037] [2024-11-22 03:44:43,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:44:43,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 03:44:43,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:44:43,481 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 7 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 03:44:43,482 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 03:44:43,482 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [795515037] [2024-11-22 03:44:43,482 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [795515037] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 03:44:43,482 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1708999826] [2024-11-22 03:44:43,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:44:43,482 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 03:44:43,482 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 03:44:43,484 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 03:44:43,485 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-22 03:44:43,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:44:43,564 INFO L255 TraceCheckSpWp]: Trace formula consists of 301 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-22 03:44:43,565 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 03:44:43,847 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 7 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 03:44:43,847 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 03:44:44,209 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 7 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 03:44:44,210 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1708999826] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 03:44:44,210 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 03:44:44,210 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 20 [2024-11-22 03:44:44,210 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1142457266] [2024-11-22 03:44:44,210 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 03:44:44,211 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-22 03:44:44,211 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 03:44:44,211 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-22 03:44:44,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=340, Unknown=0, NotChecked=0, Total=420 [2024-11-22 03:44:44,211 INFO L87 Difference]: Start difference. First operand 7112 states and 9399 transitions. Second operand has 21 states, 21 states have (on average 6.285714285714286) internal successors, (132), 20 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) [2024-11-22 03:44:44,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 03:44:44,664 INFO L93 Difference]: Finished difference Result 12236 states and 15814 transitions. [2024-11-22 03:44:44,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-22 03:44:44,664 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 6.285714285714286) internal successors, (132), 20 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) Word has length 62 [2024-11-22 03:44:44,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 03:44:44,677 INFO L225 Difference]: With dead ends: 12236 [2024-11-22 03:44:44,677 INFO L226 Difference]: Without dead ends: 7356 [2024-11-22 03:44:44,683 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 111 SyntacticMatches, 1 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 159 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=237, Invalid=693, Unknown=0, NotChecked=0, Total=930 [2024-11-22 03:44:44,683 INFO L432 NwaCegarLoop]: 1506 mSDtfsCounter, 7555 mSDsluCounter, 4770 mSDsCounter, 0 mSdLazyCounter, 389 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7555 SdHoareTripleChecker+Valid, 6276 SdHoareTripleChecker+Invalid, 397 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 389 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-22 03:44:44,683 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [7555 Valid, 6276 Invalid, 397 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 389 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-22 03:44:44,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7356 states. [2024-11-22 03:44:44,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7356 to 7236. [2024-11-22 03:44:44,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7236 states, 7234 states have (on average 1.309648880287531) internal successors, (9474), 7235 states have internal predecessors, (9474), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:44:44,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7236 states to 7236 states and 9474 transitions. [2024-11-22 03:44:44,827 INFO L78 Accepts]: Start accepts. Automaton has 7236 states and 9474 transitions. Word has length 62 [2024-11-22 03:44:44,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 03:44:44,827 INFO L471 AbstractCegarLoop]: Abstraction has 7236 states and 9474 transitions. [2024-11-22 03:44:44,828 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 6.285714285714286) internal successors, (132), 20 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) [2024-11-22 03:44:44,828 INFO L276 IsEmpty]: Start isEmpty. Operand 7236 states and 9474 transitions. [2024-11-22 03:44:44,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-11-22 03:44:44,828 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 03:44:44,828 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 03:44:44,836 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-22 03:44:45,029 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-11-22 03:44:45,030 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 03:44:45,030 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 03:44:45,030 INFO L85 PathProgramCache]: Analyzing trace with hash -753982150, now seen corresponding path program 1 times [2024-11-22 03:44:45,030 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 03:44:45,031 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2024068502] [2024-11-22 03:44:45,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:44:45,031 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 03:44:45,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:44:46,082 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 5 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 03:44:46,082 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 03:44:46,082 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2024068502] [2024-11-22 03:44:46,083 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2024068502] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 03:44:46,083 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1889059890] [2024-11-22 03:44:46,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:44:46,083 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 03:44:46,083 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 03:44:46,084 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 03:44:46,085 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-22 03:44:46,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:44:46,175 INFO L255 TraceCheckSpWp]: Trace formula consists of 303 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-22 03:44:46,177 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 03:44:46,751 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 7 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 03:44:46,751 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 03:44:47,439 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 7 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 03:44:47,439 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1889059890] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 03:44:47,439 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 03:44:47,439 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 13, 13] total 41 [2024-11-22 03:44:47,439 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [534311237] [2024-11-22 03:44:47,439 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 03:44:47,440 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2024-11-22 03:44:47,440 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 03:44:47,440 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2024-11-22 03:44:47,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=130, Invalid=1510, Unknown=0, NotChecked=0, Total=1640 [2024-11-22 03:44:47,441 INFO L87 Difference]: Start difference. First operand 7236 states and 9474 transitions. Second operand has 41 states, 41 states have (on average 4.073170731707317) internal successors, (167), 41 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:44:59,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 03:44:59,233 INFO L93 Difference]: Finished difference Result 14930 states and 18991 transitions. [2024-11-22 03:44:59,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 111 states. [2024-11-22 03:44:59,234 INFO L78 Accepts]: Start accepts. Automaton has has 41 states, 41 states have (on average 4.073170731707317) internal successors, (167), 41 states have internal predecessors, (167), 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 63 [2024-11-22 03:44:59,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 03:44:59,250 INFO L225 Difference]: With dead ends: 14930 [2024-11-22 03:44:59,250 INFO L226 Difference]: Without dead ends: 11835 [2024-11-22 03:44:59,258 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 252 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 148 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7309 ImplicationChecksByTransitivity, 11.1s TimeCoverageRelationStatistics Valid=4892, Invalid=17458, Unknown=0, NotChecked=0, Total=22350 [2024-11-22 03:44:59,259 INFO L432 NwaCegarLoop]: 1608 mSDtfsCounter, 19628 mSDsluCounter, 23939 mSDsCounter, 0 mSdLazyCounter, 1774 mSolverCounterSat, 102 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19628 SdHoareTripleChecker+Valid, 25547 SdHoareTripleChecker+Invalid, 1876 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 102 IncrementalHoareTripleChecker+Valid, 1774 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-22 03:44:59,259 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [19628 Valid, 25547 Invalid, 1876 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [102 Valid, 1774 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-22 03:44:59,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11835 states. [2024-11-22 03:44:59,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11835 to 7888. [2024-11-22 03:44:59,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7888 states, 7886 states have (on average 1.2983768704032463) internal successors, (10239), 7887 states have internal predecessors, (10239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:44:59,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7888 states to 7888 states and 10239 transitions. [2024-11-22 03:44:59,491 INFO L78 Accepts]: Start accepts. Automaton has 7888 states and 10239 transitions. Word has length 63 [2024-11-22 03:44:59,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 03:44:59,492 INFO L471 AbstractCegarLoop]: Abstraction has 7888 states and 10239 transitions. [2024-11-22 03:44:59,492 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 41 states, 41 states have (on average 4.073170731707317) internal successors, (167), 41 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:44:59,492 INFO L276 IsEmpty]: Start isEmpty. Operand 7888 states and 10239 transitions. [2024-11-22 03:44:59,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-11-22 03:44:59,493 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 03:44:59,493 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] [2024-11-22 03:44:59,500 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-22 03:44:59,693 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 03:44:59,694 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 03:44:59,694 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 03:44:59,694 INFO L85 PathProgramCache]: Analyzing trace with hash -1905434029, now seen corresponding path program 1 times [2024-11-22 03:44:59,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 03:44:59,694 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1812287890] [2024-11-22 03:44:59,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:44:59,694 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 03:44:59,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:45:00,548 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 7 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 03:45:00,548 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 03:45:00,548 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1812287890] [2024-11-22 03:45:00,548 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1812287890] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 03:45:00,548 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1115257296] [2024-11-22 03:45:00,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:45:00,549 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 03:45:00,549 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 03:45:00,550 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 03:45:00,550 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-22 03:45:00,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:45:00,625 INFO L255 TraceCheckSpWp]: Trace formula consists of 303 conjuncts, 40 conjuncts are in the unsatisfiable core [2024-11-22 03:45:00,627 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 03:45:02,586 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 7 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 03:45:02,586 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 03:45:05,105 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 7 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 03:45:05,106 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1115257296] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 03:45:05,106 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 03:45:05,106 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 23, 18] total 59 [2024-11-22 03:45:05,106 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [131348314] [2024-11-22 03:45:05,106 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 03:45:05,106 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 59 states [2024-11-22 03:45:05,106 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 03:45:05,107 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 59 interpolants. [2024-11-22 03:45:05,108 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=389, Invalid=3033, Unknown=0, NotChecked=0, Total=3422 [2024-11-22 03:45:05,108 INFO L87 Difference]: Start difference. First operand 7888 states and 10239 transitions. Second operand has 59 states, 59 states have (on average 2.9491525423728815) internal successors, (174), 59 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:45:24,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 03:45:24,851 INFO L93 Difference]: Finished difference Result 15330 states and 19423 transitions. [2024-11-22 03:45:24,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 112 states. [2024-11-22 03:45:24,851 INFO L78 Accepts]: Start accepts. Automaton has has 59 states, 59 states have (on average 2.9491525423728815) internal successors, (174), 59 states have internal predecessors, (174), 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 64 [2024-11-22 03:45:24,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 03:45:24,864 INFO L225 Difference]: With dead ends: 15330 [2024-11-22 03:45:24,864 INFO L226 Difference]: Without dead ends: 12356 [2024-11-22 03:45:24,871 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 257 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 167 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8489 ImplicationChecksByTransitivity, 19.4s TimeCoverageRelationStatistics Valid=5221, Invalid=23171, Unknown=0, NotChecked=0, Total=28392 [2024-11-22 03:45:24,872 INFO L432 NwaCegarLoop]: 1545 mSDtfsCounter, 33634 mSDsluCounter, 22496 mSDsCounter, 0 mSdLazyCounter, 2642 mSolverCounterSat, 160 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33634 SdHoareTripleChecker+Valid, 24041 SdHoareTripleChecker+Invalid, 2802 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 160 IncrementalHoareTripleChecker+Valid, 2642 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-22 03:45:24,872 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [33634 Valid, 24041 Invalid, 2802 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [160 Valid, 2642 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-22 03:45:24,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12356 states. [2024-11-22 03:45:25,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12356 to 9241. [2024-11-22 03:45:25,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9241 states, 9239 states have (on average 1.2855287368762853) internal successors, (11877), 9240 states have internal predecessors, (11877), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:45:25,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9241 states to 9241 states and 11877 transitions. [2024-11-22 03:45:25,212 INFO L78 Accepts]: Start accepts. Automaton has 9241 states and 11877 transitions. Word has length 64 [2024-11-22 03:45:25,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 03:45:25,212 INFO L471 AbstractCegarLoop]: Abstraction has 9241 states and 11877 transitions. [2024-11-22 03:45:25,212 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 59 states, 59 states have (on average 2.9491525423728815) internal successors, (174), 59 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:45:25,212 INFO L276 IsEmpty]: Start isEmpty. Operand 9241 states and 11877 transitions. [2024-11-22 03:45:25,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-22 03:45:25,215 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 03:45:25,215 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] [2024-11-22 03:45:25,224 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-22 03:45:25,416 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 03:45:25,416 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 03:45:25,417 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 03:45:25,417 INFO L85 PathProgramCache]: Analyzing trace with hash 1624666796, now seen corresponding path program 1 times [2024-11-22 03:45:25,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 03:45:25,417 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1185810962] [2024-11-22 03:45:25,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:45:25,417 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 03:45:25,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:45:25,871 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 11 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 03:45:25,872 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 03:45:25,872 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1185810962] [2024-11-22 03:45:25,872 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1185810962] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 03:45:25,872 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1960490119] [2024-11-22 03:45:25,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:45:25,872 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 03:45:25,873 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 03:45:25,874 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 03:45:25,876 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-22 03:45:25,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:45:25,977 INFO L255 TraceCheckSpWp]: Trace formula consists of 302 conjuncts, 48 conjuncts are in the unsatisfiable core [2024-11-22 03:45:25,979 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 03:45:27,269 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 11 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 03:45:27,269 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 03:45:30,496 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 7 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 03:45:30,496 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1960490119] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 03:45:30,496 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 03:45:30,497 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 19, 23] total 53 [2024-11-22 03:45:30,497 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1227442040] [2024-11-22 03:45:30,497 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 03:45:30,497 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 53 states [2024-11-22 03:45:30,497 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 03:45:30,498 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 53 interpolants. [2024-11-22 03:45:30,500 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=436, Invalid=2320, Unknown=0, NotChecked=0, Total=2756 [2024-11-22 03:45:30,500 INFO L87 Difference]: Start difference. First operand 9241 states and 11877 transitions. Second operand has 53 states, 53 states have (on average 3.1320754716981134) internal successors, (166), 53 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:45:39,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 03:45:39,967 INFO L93 Difference]: Finished difference Result 15214 states and 19226 transitions. [2024-11-22 03:45:39,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 88 states. [2024-11-22 03:45:39,968 INFO L78 Accepts]: Start accepts. Automaton has has 53 states, 53 states have (on average 3.1320754716981134) internal successors, (166), 53 states have internal predecessors, (166), 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 65 [2024-11-22 03:45:39,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 03:45:39,980 INFO L225 Difference]: With dead ends: 15214 [2024-11-22 03:45:39,980 INFO L226 Difference]: Without dead ends: 11498 [2024-11-22 03:45:39,986 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 220 GetRequests, 90 SyntacticMatches, 1 SemanticMatches, 129 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5206 ImplicationChecksByTransitivity, 9.7s TimeCoverageRelationStatistics Valid=3671, Invalid=13359, Unknown=0, NotChecked=0, Total=17030 [2024-11-22 03:45:39,987 INFO L432 NwaCegarLoop]: 1541 mSDtfsCounter, 21766 mSDsluCounter, 15842 mSDsCounter, 0 mSdLazyCounter, 1421 mSolverCounterSat, 108 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21766 SdHoareTripleChecker+Valid, 17383 SdHoareTripleChecker+Invalid, 1529 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 108 IncrementalHoareTripleChecker+Valid, 1421 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-22 03:45:39,987 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [21766 Valid, 17383 Invalid, 1529 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [108 Valid, 1421 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-22 03:45:39,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11498 states. [2024-11-22 03:45:40,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11498 to 7800. [2024-11-22 03:45:40,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7800 states, 7798 states have (on average 1.29738394460118) internal successors, (10117), 7799 states have internal predecessors, (10117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:45:40,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7800 states to 7800 states and 10117 transitions. [2024-11-22 03:45:40,360 INFO L78 Accepts]: Start accepts. Automaton has 7800 states and 10117 transitions. Word has length 65 [2024-11-22 03:45:40,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 03:45:40,360 INFO L471 AbstractCegarLoop]: Abstraction has 7800 states and 10117 transitions. [2024-11-22 03:45:40,360 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 53 states, 53 states have (on average 3.1320754716981134) internal successors, (166), 53 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:45:40,360 INFO L276 IsEmpty]: Start isEmpty. Operand 7800 states and 10117 transitions. [2024-11-22 03:45:40,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-22 03:45:40,361 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 03:45:40,361 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] [2024-11-22 03:45:40,368 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-22 03:45:40,562 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 03:45:40,562 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 03:45:40,563 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 03:45:40,563 INFO L85 PathProgramCache]: Analyzing trace with hash -1854571664, now seen corresponding path program 1 times [2024-11-22 03:45:40,563 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 03:45:40,563 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1945495433] [2024-11-22 03:45:40,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:45:40,563 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 03:45:40,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:45:41,617 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 7 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 03:45:41,617 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 03:45:41,617 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1945495433] [2024-11-22 03:45:41,617 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1945495433] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 03:45:41,617 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1477013396] [2024-11-22 03:45:41,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:45:41,617 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 03:45:41,617 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 03:45:41,619 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 03:45:41,620 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-22 03:45:41,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:45:41,718 INFO L255 TraceCheckSpWp]: Trace formula consists of 302 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-11-22 03:45:41,719 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 03:45:42,912 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 7 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 03:45:42,912 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 03:45:43,831 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 7 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 03:45:43,832 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1477013396] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 03:45:43,832 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 03:45:43,832 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 18, 16] total 48 [2024-11-22 03:45:43,832 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [747389008] [2024-11-22 03:45:43,832 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 03:45:43,832 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2024-11-22 03:45:43,832 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 03:45:43,833 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2024-11-22 03:45:43,833 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=199, Invalid=2057, Unknown=0, NotChecked=0, Total=2256 [2024-11-22 03:45:43,834 INFO L87 Difference]: Start difference. First operand 7800 states and 10117 transitions. Second operand has 48 states, 48 states have (on average 3.5208333333333335) internal successors, (169), 48 states have internal predecessors, (169), 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)