./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem13_label27.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3289d67d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/eca-rers2012/Problem13_label27.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 e8feab662bc73c18f88b757dfbe2687c764aa0043a35ed648ed6332a38c0448d --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 04:00:13,838 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 04:00:13,911 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-16 04:00:13,919 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 04:00:13,920 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 04:00:13,954 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 04:00:13,955 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 04:00:13,955 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 04:00:13,956 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-16 04:00:13,956 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-16 04:00:13,956 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 04:00:13,957 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 04:00:13,958 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 04:00:13,962 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 04:00:13,963 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 04:00:13,963 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 04:00:13,963 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 04:00:13,963 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-16 04:00:13,964 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 04:00:13,964 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-16 04:00:13,964 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 04:00:13,966 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 04:00:13,966 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 04:00:13,967 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 04:00:13,967 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 04:00:13,967 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-16 04:00:13,967 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 04:00:13,968 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 04:00:13,968 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 04:00:13,968 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 04:00:13,969 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-16 04:00:13,969 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 04:00:13,969 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 04:00:13,969 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 04:00:13,970 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 04:00:13,970 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 04:00:13,970 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 04:00:13,971 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 04:00:13,971 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 04:00:13,972 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 04:00:13,972 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 04:00:13,973 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 04:00:13,974 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e8feab662bc73c18f88b757dfbe2687c764aa0043a35ed648ed6332a38c0448d [2024-11-16 04:00:14,228 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 04:00:14,253 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 04:00:14,256 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 04:00:14,257 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 04:00:14,258 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 04:00:14,259 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem13_label27.c [2024-11-16 04:00:15,800 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 04:00:16,290 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 04:00:16,292 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem13_label27.c [2024-11-16 04:00:16,329 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bd733f18c/7d5109e55cdb4f1abd216b406999cba9/FLAG1379b15bc [2024-11-16 04:00:16,346 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bd733f18c/7d5109e55cdb4f1abd216b406999cba9 [2024-11-16 04:00:16,351 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 04:00:16,352 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 04:00:16,353 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 04:00:16,353 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 04:00:16,362 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 04:00:16,363 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 04:00:16" (1/1) ... [2024-11-16 04:00:16,364 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@76cac7b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:00:16, skipping insertion in model container [2024-11-16 04:00:16,364 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 04:00:16" (1/1) ... [2024-11-16 04:00:16,489 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 04:00:16,825 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/eca-rers2012/Problem13_label27.c[6468,6481] [2024-11-16 04:00:17,712 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 04:00:17,726 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 04:00:17,758 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/eca-rers2012/Problem13_label27.c[6468,6481] [2024-11-16 04:00:18,198 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 04:00:18,225 INFO L204 MainTranslator]: Completed translation [2024-11-16 04:00:18,226 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:00:18 WrapperNode [2024-11-16 04:00:18,227 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 04:00:18,228 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 04:00:18,228 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 04:00:18,228 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 04:00:18,234 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:00:18" (1/1) ... [2024-11-16 04:00:18,298 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:00:18" (1/1) ... [2024-11-16 04:00:18,836 INFO L138 Inliner]: procedures = 17, calls = 11, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 5586 [2024-11-16 04:00:18,837 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 04:00:18,837 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 04:00:18,837 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 04:00:18,838 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 04:00:18,848 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:00:18" (1/1) ... [2024-11-16 04:00:18,848 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:00:18" (1/1) ... [2024-11-16 04:00:19,040 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:00:18" (1/1) ... [2024-11-16 04:00:19,380 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]. [2024-11-16 04:00:19,380 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:00:18" (1/1) ... [2024-11-16 04:00:19,380 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:00:18" (1/1) ... [2024-11-16 04:00:19,766 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:00:18" (1/1) ... [2024-11-16 04:00:19,809 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:00:18" (1/1) ... [2024-11-16 04:00:19,839 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:00:18" (1/1) ... [2024-11-16 04:00:19,860 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:00:18" (1/1) ... [2024-11-16 04:00:19,918 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 04:00:19,919 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 04:00:19,919 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 04:00:19,919 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 04:00:19,921 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:00:18" (1/1) ... [2024-11-16 04:00:19,926 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 04:00:19,938 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 04:00:19,956 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) [2024-11-16 04:00:19,959 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 [2024-11-16 04:00:19,996 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 04:00:19,996 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-16 04:00:19,996 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 04:00:19,997 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 04:00:20,058 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 04:00:20,059 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 04:00:25,236 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L1894: havoc calculate_output_#t~ret9#1; [2024-11-16 04:00:25,236 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L3629: havoc calculate_output2_#t~ret10#1; [2024-11-16 04:00:25,236 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L5351: havoc calculate_output3_#t~ret11#1; [2024-11-16 04:00:25,453 INFO L? ?]: Removed 738 outVars from TransFormulas that were not future-live. [2024-11-16 04:00:25,453 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 04:00:25,494 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 04:00:25,494 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 04:00:25,495 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 04:00:25 BoogieIcfgContainer [2024-11-16 04:00:25,495 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 04:00:25,497 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 04:00:25,497 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 04:00:25,500 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 04:00:25,501 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 04:00:16" (1/3) ... [2024-11-16 04:00:25,501 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35f67f55 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 04:00:25, skipping insertion in model container [2024-11-16 04:00:25,503 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:00:18" (2/3) ... [2024-11-16 04:00:25,503 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35f67f55 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 04:00:25, skipping insertion in model container [2024-11-16 04:00:25,503 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 04:00:25" (3/3) ... [2024-11-16 04:00:25,504 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem13_label27.c [2024-11-16 04:00:25,521 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 04:00:25,522 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-16 04:00:25,628 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 04:00:25,636 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;@6dc178e7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 04:00:25,636 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-16 04:00:25,646 INFO L276 IsEmpty]: Start isEmpty. Operand has 1101 states, 1099 states have (on average 1.8252957233848954) internal successors, (2006), 1100 states have internal predecessors, (2006), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:00:25,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2024-11-16 04:00:25,654 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:00:25,655 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:00:25,656 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:00:25,661 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:00:25,662 INFO L85 PathProgramCache]: Analyzing trace with hash 1030888691, now seen corresponding path program 1 times [2024-11-16 04:00:25,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:00:25,671 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [903496978] [2024-11-16 04:00:25,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:00:25,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:00:25,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:00:26,046 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 04:00:26,047 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:00:26,048 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [903496978] [2024-11-16 04:00:26,048 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [903496978] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:00:26,049 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:00:26,049 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 04:00:26,052 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [354902263] [2024-11-16 04:00:26,052 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:00:26,058 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:00:26,058 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:00:26,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:00:26,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:00:26,087 INFO L87 Difference]: Start difference. First operand has 1101 states, 1099 states have (on average 1.8252957233848954) internal successors, (2006), 1100 states have internal predecessors, (2006), 0 states have call successors, (0), 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 15.666666666666666) internal successors, (47), 2 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:00:30,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:00:30,100 INFO L93 Difference]: Finished difference Result 3088 states and 5695 transitions. [2024-11-16 04:00:30,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:00:30,102 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 2 states have internal predecessors, (47), 0 states have call successors, (0), 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 47 [2024-11-16 04:00:30,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:00:30,137 INFO L225 Difference]: With dead ends: 3088 [2024-11-16 04:00:30,138 INFO L226 Difference]: Without dead ends: 1902 [2024-11-16 04:00:30,149 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 [2024-11-16 04:00:30,154 INFO L432 NwaCegarLoop]: 477 mSDtfsCounter, 994 mSDsluCounter, 173 mSDsCounter, 0 mSdLazyCounter, 2955 mSolverCounterSat, 599 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 994 SdHoareTripleChecker+Valid, 650 SdHoareTripleChecker+Invalid, 3554 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 599 IncrementalHoareTripleChecker+Valid, 2955 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2024-11-16 04:00:30,155 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [994 Valid, 650 Invalid, 3554 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [599 Valid, 2955 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2024-11-16 04:00:30,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1902 states. [2024-11-16 04:00:30,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1902 to 1897. [2024-11-16 04:00:30,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1897 states, 1896 states have (on average 1.7362869198312236) internal successors, (3292), 1896 states have internal predecessors, (3292), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:00:30,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1897 states to 1897 states and 3292 transitions. [2024-11-16 04:00:30,282 INFO L78 Accepts]: Start accepts. Automaton has 1897 states and 3292 transitions. Word has length 47 [2024-11-16 04:00:30,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:00:30,282 INFO L471 AbstractCegarLoop]: Abstraction has 1897 states and 3292 transitions. [2024-11-16 04:00:30,283 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 2 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:00:30,283 INFO L276 IsEmpty]: Start isEmpty. Operand 1897 states and 3292 transitions. [2024-11-16 04:00:30,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-11-16 04:00:30,286 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:00:30,287 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:00:30,287 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 04:00:30,287 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:00:30,288 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:00:30,288 INFO L85 PathProgramCache]: Analyzing trace with hash -197374291, now seen corresponding path program 1 times [2024-11-16 04:00:30,288 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:00:30,288 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [700445658] [2024-11-16 04:00:30,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:00:30,289 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:00:30,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:00:30,716 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 43 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 04:00:30,716 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:00:30,717 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [700445658] [2024-11-16 04:00:30,717 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [700445658] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:00:30,717 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:00:30,717 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 04:00:30,718 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [141818860] [2024-11-16 04:00:30,718 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:00:30,720 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:00:30,721 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:00:30,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:00:30,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:00:30,723 INFO L87 Difference]: Start difference. First operand 1897 states and 3292 transitions. Second operand has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 2 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:00:34,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:00:34,656 INFO L93 Difference]: Finished difference Result 5445 states and 9574 transitions. [2024-11-16 04:00:34,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:00:34,657 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 2 states have internal predecessors, (113), 0 states have call successors, (0), 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 113 [2024-11-16 04:00:34,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:00:34,672 INFO L225 Difference]: With dead ends: 5445 [2024-11-16 04:00:34,672 INFO L226 Difference]: Without dead ends: 3550 [2024-11-16 04:00:34,675 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 [2024-11-16 04:00:34,677 INFO L432 NwaCegarLoop]: 747 mSDtfsCounter, 815 mSDsluCounter, 138 mSDsCounter, 0 mSdLazyCounter, 3127 mSolverCounterSat, 361 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 815 SdHoareTripleChecker+Valid, 885 SdHoareTripleChecker+Invalid, 3488 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 361 IncrementalHoareTripleChecker+Valid, 3127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2024-11-16 04:00:34,678 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [815 Valid, 885 Invalid, 3488 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [361 Valid, 3127 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2024-11-16 04:00:34,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3550 states. [2024-11-16 04:00:34,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3550 to 3489. [2024-11-16 04:00:34,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3489 states, 3488 states have (on average 1.5857224770642202) internal successors, (5531), 3488 states have internal predecessors, (5531), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:00:34,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3489 states to 3489 states and 5531 transitions. [2024-11-16 04:00:34,761 INFO L78 Accepts]: Start accepts. Automaton has 3489 states and 5531 transitions. Word has length 113 [2024-11-16 04:00:34,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:00:34,763 INFO L471 AbstractCegarLoop]: Abstraction has 3489 states and 5531 transitions. [2024-11-16 04:00:34,764 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 2 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:00:34,764 INFO L276 IsEmpty]: Start isEmpty. Operand 3489 states and 5531 transitions. [2024-11-16 04:00:34,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-11-16 04:00:34,770 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:00:34,771 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:00:34,771 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-16 04:00:34,771 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:00:34,772 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:00:34,772 INFO L85 PathProgramCache]: Analyzing trace with hash 1340630745, now seen corresponding path program 1 times [2024-11-16 04:00:34,772 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:00:34,772 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [561948355] [2024-11-16 04:00:34,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:00:34,773 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:00:34,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:00:34,983 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 43 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 04:00:34,984 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:00:34,984 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [561948355] [2024-11-16 04:00:34,988 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [561948355] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:00:34,988 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:00:34,989 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 04:00:34,989 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1644072904] [2024-11-16 04:00:34,989 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:00:34,990 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:00:34,990 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:00:34,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:00:34,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:00:34,994 INFO L87 Difference]: Start difference. First operand 3489 states and 5531 transitions. Second operand has 3 states, 3 states have (on average 38.0) internal successors, (114), 2 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:00:38,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:00:38,062 INFO L93 Difference]: Finished difference Result 10152 states and 16148 transitions. [2024-11-16 04:00:38,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:00:38,063 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 2 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2024-11-16 04:00:38,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:00:38,089 INFO L225 Difference]: With dead ends: 10152 [2024-11-16 04:00:38,090 INFO L226 Difference]: Without dead ends: 6665 [2024-11-16 04:00:38,097 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 [2024-11-16 04:00:38,098 INFO L432 NwaCegarLoop]: 985 mSDtfsCounter, 872 mSDsluCounter, 154 mSDsCounter, 0 mSdLazyCounter, 2379 mSolverCounterSat, 877 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 872 SdHoareTripleChecker+Valid, 1139 SdHoareTripleChecker+Invalid, 3256 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 877 IncrementalHoareTripleChecker+Valid, 2379 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2024-11-16 04:00:38,099 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [872 Valid, 1139 Invalid, 3256 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [877 Valid, 2379 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2024-11-16 04:00:38,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6665 states. [2024-11-16 04:00:38,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6665 to 6664. [2024-11-16 04:00:38,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6664 states, 6663 states have (on average 1.4166291460303166) internal successors, (9439), 6663 states have internal predecessors, (9439), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:00:38,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6664 states to 6664 states and 9439 transitions. [2024-11-16 04:00:38,226 INFO L78 Accepts]: Start accepts. Automaton has 6664 states and 9439 transitions. Word has length 114 [2024-11-16 04:00:38,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:00:38,229 INFO L471 AbstractCegarLoop]: Abstraction has 6664 states and 9439 transitions. [2024-11-16 04:00:38,230 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 2 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:00:38,230 INFO L276 IsEmpty]: Start isEmpty. Operand 6664 states and 9439 transitions. [2024-11-16 04:00:38,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2024-11-16 04:00:38,231 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:00:38,231 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:00:38,232 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-16 04:00:38,232 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:00:38,232 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:00:38,235 INFO L85 PathProgramCache]: Analyzing trace with hash 1465604983, now seen corresponding path program 1 times [2024-11-16 04:00:38,236 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:00:38,236 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1529532957] [2024-11-16 04:00:38,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:00:38,236 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:00:38,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:00:38,405 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 43 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 04:00:38,406 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:00:38,406 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1529532957] [2024-11-16 04:00:38,406 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1529532957] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:00:38,406 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:00:38,406 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 04:00:38,406 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1118017716] [2024-11-16 04:00:38,406 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:00:38,407 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:00:38,407 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:00:38,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:00:38,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:00:38,408 INFO L87 Difference]: Start difference. First operand 6664 states and 9439 transitions. Second operand has 3 states, 3 states have (on average 39.0) internal successors, (117), 2 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:00:41,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:00:41,779 INFO L93 Difference]: Finished difference Result 14139 states and 20692 transitions. [2024-11-16 04:00:41,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:00:41,780 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.0) internal successors, (117), 2 states have internal predecessors, (117), 0 states have call successors, (0), 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 117 [2024-11-16 04:00:41,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:00:41,803 INFO L225 Difference]: With dead ends: 14139 [2024-11-16 04:00:41,803 INFO L226 Difference]: Without dead ends: 7477 [2024-11-16 04:00:41,812 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 [2024-11-16 04:00:41,813 INFO L432 NwaCegarLoop]: 1045 mSDtfsCounter, 873 mSDsluCounter, 134 mSDsCounter, 0 mSdLazyCounter, 2662 mSolverCounterSat, 719 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 873 SdHoareTripleChecker+Valid, 1179 SdHoareTripleChecker+Invalid, 3381 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 719 IncrementalHoareTripleChecker+Valid, 2662 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2024-11-16 04:00:41,814 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [873 Valid, 1179 Invalid, 3381 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [719 Valid, 2662 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2024-11-16 04:00:41,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7477 states. [2024-11-16 04:00:41,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7477 to 7466. [2024-11-16 04:00:41,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7466 states, 7465 states have (on average 1.3385130609511051) internal successors, (9992), 7465 states have internal predecessors, (9992), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:00:41,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7466 states to 7466 states and 9992 transitions. [2024-11-16 04:00:41,942 INFO L78 Accepts]: Start accepts. Automaton has 7466 states and 9992 transitions. Word has length 117 [2024-11-16 04:00:41,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:00:41,943 INFO L471 AbstractCegarLoop]: Abstraction has 7466 states and 9992 transitions. [2024-11-16 04:00:41,943 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.0) internal successors, (117), 2 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:00:41,943 INFO L276 IsEmpty]: Start isEmpty. Operand 7466 states and 9992 transitions. [2024-11-16 04:00:41,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2024-11-16 04:00:41,946 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:00:41,947 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:00:41,947 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-16 04:00:41,948 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:00:41,949 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:00:41,949 INFO L85 PathProgramCache]: Analyzing trace with hash 341443688, now seen corresponding path program 1 times [2024-11-16 04:00:41,949 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:00:41,949 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [330557416] [2024-11-16 04:00:41,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:00:41,949 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:00:41,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:00:42,303 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 43 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 04:00:42,304 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:00:42,305 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [330557416] [2024-11-16 04:00:42,305 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [330557416] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:00:42,305 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:00:42,305 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 04:00:42,306 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [740877250] [2024-11-16 04:00:42,306 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:00:42,306 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:00:42,306 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:00:42,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:00:42,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:00:42,308 INFO L87 Difference]: Start difference. First operand 7466 states and 9992 transitions. Second operand has 3 states, 3 states have (on average 53.0) internal successors, (159), 2 states have internal predecessors, (159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:00:44,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:00:44,769 INFO L93 Difference]: Finished difference Result 14142 states and 19169 transitions. [2024-11-16 04:00:44,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:00:44,770 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 53.0) internal successors, (159), 2 states have internal predecessors, (159), 0 states have call successors, (0), 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 159 [2024-11-16 04:00:44,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:00:44,791 INFO L225 Difference]: With dead ends: 14142 [2024-11-16 04:00:44,791 INFO L226 Difference]: Without dead ends: 7466 [2024-11-16 04:00:44,861 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 [2024-11-16 04:00:44,862 INFO L432 NwaCegarLoop]: 1088 mSDtfsCounter, 678 mSDsluCounter, 131 mSDsCounter, 0 mSdLazyCounter, 2523 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 678 SdHoareTripleChecker+Valid, 1219 SdHoareTripleChecker+Invalid, 2542 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 2523 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-11-16 04:00:44,862 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [678 Valid, 1219 Invalid, 2542 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 2523 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-11-16 04:00:44,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7466 states. [2024-11-16 04:00:44,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7466 to 7466. [2024-11-16 04:00:44,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7466 states, 7465 states have (on average 1.335833891493637) internal successors, (9972), 7465 states have internal predecessors, (9972), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:00:44,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7466 states to 7466 states and 9972 transitions. [2024-11-16 04:00:44,971 INFO L78 Accepts]: Start accepts. Automaton has 7466 states and 9972 transitions. Word has length 159 [2024-11-16 04:00:44,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:00:44,972 INFO L471 AbstractCegarLoop]: Abstraction has 7466 states and 9972 transitions. [2024-11-16 04:00:44,972 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 53.0) internal successors, (159), 2 states have internal predecessors, (159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:00:44,972 INFO L276 IsEmpty]: Start isEmpty. Operand 7466 states and 9972 transitions. [2024-11-16 04:00:44,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2024-11-16 04:00:44,974 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:00:44,974 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:00:44,974 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-16 04:00:44,974 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:00:44,974 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:00:44,975 INFO L85 PathProgramCache]: Analyzing trace with hash 1071851282, now seen corresponding path program 1 times [2024-11-16 04:00:44,975 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:00:44,975 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1382847368] [2024-11-16 04:00:44,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:00:44,977 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:00:45,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:00:45,104 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 43 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 04:00:45,104 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:00:45,104 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1382847368] [2024-11-16 04:00:45,104 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1382847368] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:00:45,105 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:00:45,105 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 04:00:45,105 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [197807150] [2024-11-16 04:00:45,105 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:00:45,105 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:00:45,106 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:00:45,107 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:00:45,107 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:00:45,108 INFO L87 Difference]: Start difference. First operand 7466 states and 9972 transitions. Second operand has 3 states, 3 states have (on average 57.666666666666664) internal successors, (173), 3 states have internal predecessors, (173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:00:48,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:00:48,125 INFO L93 Difference]: Finished difference Result 20443 states and 27825 transitions. [2024-11-16 04:00:48,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:00:48,126 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 57.666666666666664) internal successors, (173), 3 states have internal predecessors, (173), 0 states have call successors, (0), 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 173 [2024-11-16 04:00:48,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:00:48,152 INFO L225 Difference]: With dead ends: 20443 [2024-11-16 04:00:48,152 INFO L226 Difference]: Without dead ends: 13767 [2024-11-16 04:00:48,163 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 [2024-11-16 04:00:48,165 INFO L432 NwaCegarLoop]: 1870 mSDtfsCounter, 889 mSDsluCounter, 142 mSDsCounter, 0 mSdLazyCounter, 2485 mSolverCounterSat, 807 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 889 SdHoareTripleChecker+Valid, 2012 SdHoareTripleChecker+Invalid, 3292 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 807 IncrementalHoareTripleChecker+Valid, 2485 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2024-11-16 04:00:48,166 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [889 Valid, 2012 Invalid, 3292 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [807 Valid, 2485 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2024-11-16 04:00:48,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13767 states. [2024-11-16 04:00:48,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13767 to 13762. [2024-11-16 04:00:48,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13762 states, 13761 states have (on average 1.25695806990771) internal successors, (17297), 13761 states have internal predecessors, (17297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:00:48,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13762 states to 13762 states and 17297 transitions. [2024-11-16 04:00:48,365 INFO L78 Accepts]: Start accepts. Automaton has 13762 states and 17297 transitions. Word has length 173 [2024-11-16 04:00:48,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:00:48,366 INFO L471 AbstractCegarLoop]: Abstraction has 13762 states and 17297 transitions. [2024-11-16 04:00:48,366 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 57.666666666666664) internal successors, (173), 3 states have internal predecessors, (173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:00:48,366 INFO L276 IsEmpty]: Start isEmpty. Operand 13762 states and 17297 transitions. [2024-11-16 04:00:48,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 262 [2024-11-16 04:00:48,370 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:00:48,371 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:00:48,371 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-16 04:00:48,371 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:00:48,372 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:00:48,372 INFO L85 PathProgramCache]: Analyzing trace with hash -178883560, now seen corresponding path program 1 times [2024-11-16 04:00:48,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:00:48,372 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1665330255] [2024-11-16 04:00:48,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:00:48,372 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:00:48,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:00:48,806 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 183 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 04:00:48,806 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:00:48,806 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1665330255] [2024-11-16 04:00:48,807 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1665330255] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:00:48,807 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:00:48,807 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 04:00:48,807 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [695786942] [2024-11-16 04:00:48,807 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:00:48,808 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:00:48,808 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:00:48,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:00:48,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:00:48,809 INFO L87 Difference]: Start difference. First operand 13762 states and 17297 transitions. Second operand has 3 states, 3 states have (on average 87.0) internal successors, (261), 3 states have internal predecessors, (261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:00:52,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:00:52,345 INFO L93 Difference]: Finished difference Result 37793 states and 48132 transitions. [2024-11-16 04:00:52,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:00:52,345 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 87.0) internal successors, (261), 3 states have internal predecessors, (261), 0 states have call successors, (0), 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 261 [2024-11-16 04:00:52,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:00:52,384 INFO L225 Difference]: With dead ends: 37793 [2024-11-16 04:00:52,384 INFO L226 Difference]: Without dead ends: 23241 [2024-11-16 04:00:52,403 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 [2024-11-16 04:00:52,405 INFO L432 NwaCegarLoop]: 1822 mSDtfsCounter, 753 mSDsluCounter, 143 mSDsCounter, 0 mSdLazyCounter, 2585 mSolverCounterSat, 712 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 753 SdHoareTripleChecker+Valid, 1965 SdHoareTripleChecker+Invalid, 3297 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 712 IncrementalHoareTripleChecker+Valid, 2585 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2024-11-16 04:00:52,407 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [753 Valid, 1965 Invalid, 3297 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [712 Valid, 2585 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2024-11-16 04:00:52,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23241 states. [2024-11-16 04:00:52,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23241 to 22428. [2024-11-16 04:00:52,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22428 states, 22427 states have (on average 1.1933829758772907) internal successors, (26764), 22427 states have internal predecessors, (26764), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:00:52,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22428 states to 22428 states and 26764 transitions. [2024-11-16 04:00:52,708 INFO L78 Accepts]: Start accepts. Automaton has 22428 states and 26764 transitions. Word has length 261 [2024-11-16 04:00:52,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:00:52,709 INFO L471 AbstractCegarLoop]: Abstraction has 22428 states and 26764 transitions. [2024-11-16 04:00:52,709 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 87.0) internal successors, (261), 3 states have internal predecessors, (261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:00:52,710 INFO L276 IsEmpty]: Start isEmpty. Operand 22428 states and 26764 transitions. [2024-11-16 04:00:52,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 317 [2024-11-16 04:00:52,715 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:00:52,715 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:00:52,715 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-16 04:00:52,715 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:00:52,716 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:00:52,716 INFO L85 PathProgramCache]: Analyzing trace with hash -1110679413, now seen corresponding path program 1 times [2024-11-16 04:00:52,716 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:00:52,716 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1123454914] [2024-11-16 04:00:52,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:00:52,716 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:00:52,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:00:52,995 INFO L134 CoverageAnalysis]: Checked inductivity of 366 backedges. 322 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2024-11-16 04:00:52,996 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:00:52,996 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1123454914] [2024-11-16 04:00:52,997 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1123454914] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:00:52,997 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:00:52,997 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 04:00:52,997 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [424577201] [2024-11-16 04:00:52,997 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:00:52,998 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 04:00:52,998 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:00:52,998 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 04:00:52,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-16 04:00:52,999 INFO L87 Difference]: Start difference. First operand 22428 states and 26764 transitions. Second operand has 4 states, 4 states have (on average 68.25) internal successors, (273), 3 states have internal predecessors, (273), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:00:59,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:00:59,500 INFO L93 Difference]: Finished difference Result 80532 states and 97158 transitions. [2024-11-16 04:00:59,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 04:00:59,501 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 68.25) internal successors, (273), 3 states have internal predecessors, (273), 0 states have call successors, (0), 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 316 [2024-11-16 04:00:59,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:00:59,587 INFO L225 Difference]: With dead ends: 80532 [2024-11-16 04:00:59,588 INFO L226 Difference]: Without dead ends: 58894 [2024-11-16 04:00:59,621 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-16 04:00:59,622 INFO L432 NwaCegarLoop]: 1017 mSDtfsCounter, 1690 mSDsluCounter, 265 mSDsCounter, 0 mSdLazyCounter, 6960 mSolverCounterSat, 936 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1690 SdHoareTripleChecker+Valid, 1282 SdHoareTripleChecker+Invalid, 7896 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 936 IncrementalHoareTripleChecker+Valid, 6960 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2024-11-16 04:00:59,623 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1690 Valid, 1282 Invalid, 7896 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [936 Valid, 6960 Invalid, 0 Unknown, 0 Unchecked, 6.1s Time] [2024-11-16 04:00:59,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58894 states. [2024-11-16 04:01:00,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58894 to 57188. [2024-11-16 04:01:00,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57188 states, 57187 states have (on average 1.1767184849703605) internal successors, (67293), 57187 states have internal predecessors, (67293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:01:00,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57188 states to 57188 states and 67293 transitions. [2024-11-16 04:01:00,450 INFO L78 Accepts]: Start accepts. Automaton has 57188 states and 67293 transitions. Word has length 316 [2024-11-16 04:01:00,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:01:00,450 INFO L471 AbstractCegarLoop]: Abstraction has 57188 states and 67293 transitions. [2024-11-16 04:01:00,450 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 68.25) internal successors, (273), 3 states have internal predecessors, (273), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:01:00,451 INFO L276 IsEmpty]: Start isEmpty. Operand 57188 states and 67293 transitions. [2024-11-16 04:01:00,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 357 [2024-11-16 04:01:00,458 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:01:00,458 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:01:00,458 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-16 04:01:00,458 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:01:00,459 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:01:00,459 INFO L85 PathProgramCache]: Analyzing trace with hash -882639986, now seen corresponding path program 1 times [2024-11-16 04:01:00,459 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:01:00,459 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2073049247] [2024-11-16 04:01:00,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:01:00,460 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:01:00,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:01:01,519 INFO L134 CoverageAnalysis]: Checked inductivity of 376 backedges. 221 proven. 111 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2024-11-16 04:01:01,521 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:01:01,521 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2073049247] [2024-11-16 04:01:01,521 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2073049247] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 04:01:01,522 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [635579282] [2024-11-16 04:01:01,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:01:01,522 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 04:01:01,522 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 04:01:01,524 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) [2024-11-16 04:01:01,527 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-16 04:01:01,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:01:01,687 INFO L255 TraceCheckSpWp]: Trace formula consists of 493 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-16 04:01:01,701 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 04:01:01,842 INFO L134 CoverageAnalysis]: Checked inductivity of 376 backedges. 262 proven. 0 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2024-11-16 04:01:01,842 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 04:01:01,843 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [635579282] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:01:01,843 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 04:01:01,843 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2024-11-16 04:01:01,843 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [840132324] [2024-11-16 04:01:01,843 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:01:01,844 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:01:01,844 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:01:01,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:01:01,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-16 04:01:01,845 INFO L87 Difference]: Start difference. First operand 57188 states and 67293 transitions. Second operand has 3 states, 3 states have (on average 81.0) internal successors, (243), 3 states have internal predecessors, (243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:01:05,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:01:05,007 INFO L93 Difference]: Finished difference Result 113575 states and 133781 transitions. [2024-11-16 04:01:05,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:01:05,008 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 81.0) internal successors, (243), 3 states have internal predecessors, (243), 0 states have call successors, (0), 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 356 [2024-11-16 04:01:05,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:01:05,098 INFO L225 Difference]: With dead ends: 113575 [2024-11-16 04:01:05,099 INFO L226 Difference]: Without dead ends: 57177 [2024-11-16 04:01:05,147 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 360 GetRequests, 355 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-16 04:01:05,148 INFO L432 NwaCegarLoop]: 676 mSDtfsCounter, 1078 mSDsluCounter, 132 mSDsCounter, 0 mSdLazyCounter, 2382 mSolverCounterSat, 530 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1078 SdHoareTripleChecker+Valid, 808 SdHoareTripleChecker+Invalid, 2912 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 530 IncrementalHoareTripleChecker+Valid, 2382 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2024-11-16 04:01:05,148 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1078 Valid, 808 Invalid, 2912 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [530 Valid, 2382 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2024-11-16 04:01:05,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57177 states. [2024-11-16 04:01:05,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57177 to 57174. [2024-11-16 04:01:05,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57174 states, 57173 states have (on average 1.1290119461983803) internal successors, (64549), 57173 states have internal predecessors, (64549), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:01:06,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57174 states to 57174 states and 64549 transitions. [2024-11-16 04:01:06,163 INFO L78 Accepts]: Start accepts. Automaton has 57174 states and 64549 transitions. Word has length 356 [2024-11-16 04:01:06,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:01:06,163 INFO L471 AbstractCegarLoop]: Abstraction has 57174 states and 64549 transitions. [2024-11-16 04:01:06,164 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 81.0) internal successors, (243), 3 states have internal predecessors, (243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:01:06,164 INFO L276 IsEmpty]: Start isEmpty. Operand 57174 states and 64549 transitions. [2024-11-16 04:01:06,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 359 [2024-11-16 04:01:06,172 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:01:06,173 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:01:06,192 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-16 04:01:06,374 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 04:01:06,374 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:01:06,375 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:01:06,375 INFO L85 PathProgramCache]: Analyzing trace with hash 1396945843, now seen corresponding path program 1 times [2024-11-16 04:01:06,375 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:01:06,376 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [578255746] [2024-11-16 04:01:06,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:01:06,376 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:01:06,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:01:07,755 INFO L134 CoverageAnalysis]: Checked inductivity of 380 backedges. 225 proven. 111 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2024-11-16 04:01:07,756 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:01:07,756 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [578255746] [2024-11-16 04:01:07,756 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [578255746] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 04:01:07,756 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1172036474] [2024-11-16 04:01:07,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:01:07,756 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 04:01:07,756 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 04:01:07,762 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) [2024-11-16 04:01:07,764 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-16 04:01:07,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:01:07,904 INFO L255 TraceCheckSpWp]: Trace formula consists of 491 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-16 04:01:07,913 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 04:01:08,028 INFO L134 CoverageAnalysis]: Checked inductivity of 380 backedges. 266 proven. 0 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2024-11-16 04:01:08,028 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 04:01:08,028 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1172036474] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:01:08,029 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 04:01:08,029 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2024-11-16 04:01:08,029 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [486992182] [2024-11-16 04:01:08,029 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:01:08,030 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:01:08,030 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:01:08,030 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:01:08,030 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-16 04:01:08,031 INFO L87 Difference]: Start difference. First operand 57174 states and 64549 transitions. Second operand has 3 states, 3 states have (on average 81.66666666666667) internal successors, (245), 3 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:01:10,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:01:10,841 INFO L93 Difference]: Finished difference Result 113556 states and 128302 transitions. [2024-11-16 04:01:10,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:01:10,842 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 81.66666666666667) internal successors, (245), 3 states have internal predecessors, (245), 0 states have call successors, (0), 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 358 [2024-11-16 04:01:10,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:01:10,902 INFO L225 Difference]: With dead ends: 113556 [2024-11-16 04:01:10,902 INFO L226 Difference]: Without dead ends: 57172 [2024-11-16 04:01:10,933 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 362 GetRequests, 357 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-16 04:01:10,933 INFO L432 NwaCegarLoop]: 1349 mSDtfsCounter, 1132 mSDsluCounter, 82 mSDsCounter, 0 mSdLazyCounter, 2453 mSolverCounterSat, 444 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1132 SdHoareTripleChecker+Valid, 1431 SdHoareTripleChecker+Invalid, 2897 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 444 IncrementalHoareTripleChecker+Valid, 2453 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-11-16 04:01:10,934 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1132 Valid, 1431 Invalid, 2897 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [444 Valid, 2453 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-11-16 04:01:10,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57172 states. [2024-11-16 04:01:11,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57172 to 57171. [2024-11-16 04:01:11,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57171 states, 57170 states have (on average 1.0978835053349658) internal successors, (62766), 57170 states have internal predecessors, (62766), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:01:11,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57171 states to 57171 states and 62766 transitions. [2024-11-16 04:01:11,797 INFO L78 Accepts]: Start accepts. Automaton has 57171 states and 62766 transitions. Word has length 358 [2024-11-16 04:01:11,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:01:11,797 INFO L471 AbstractCegarLoop]: Abstraction has 57171 states and 62766 transitions. [2024-11-16 04:01:11,797 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 81.66666666666667) internal successors, (245), 3 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:01:11,797 INFO L276 IsEmpty]: Start isEmpty. Operand 57171 states and 62766 transitions. [2024-11-16 04:01:11,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 407 [2024-11-16 04:01:11,807 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:01:11,808 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:01:11,824 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-16 04:01:12,008 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,SelfDestructingSolverStorable9 [2024-11-16 04:01:12,009 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:01:12,009 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:01:12,009 INFO L85 PathProgramCache]: Analyzing trace with hash 1577102214, now seen corresponding path program 1 times [2024-11-16 04:01:12,010 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:01:12,010 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1677783944] [2024-11-16 04:01:12,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:01:12,010 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:01:12,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:01:13,708 INFO L134 CoverageAnalysis]: Checked inductivity of 472 backedges. 314 proven. 114 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2024-11-16 04:01:13,709 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:01:13,709 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1677783944] [2024-11-16 04:01:13,709 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1677783944] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 04:01:13,709 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [930307441] [2024-11-16 04:01:13,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:01:13,709 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 04:01:13,709 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 04:01:13,711 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) [2024-11-16 04:01:13,713 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-16 04:01:13,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:01:13,865 INFO L255 TraceCheckSpWp]: Trace formula consists of 541 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-16 04:01:13,869 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 04:01:13,931 INFO L134 CoverageAnalysis]: Checked inductivity of 472 backedges. 131 proven. 0 refuted. 0 times theorem prover too weak. 341 trivial. 0 not checked. [2024-11-16 04:01:13,932 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 04:01:13,932 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [930307441] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:01:13,932 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 04:01:13,932 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 9 [2024-11-16 04:01:13,933 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [472197339] [2024-11-16 04:01:13,933 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:01:13,933 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:01:13,934 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:01:13,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:01:13,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2024-11-16 04:01:13,934 INFO L87 Difference]: Start difference. First operand 57171 states and 62766 transitions. Second operand has 3 states, 3 states have (on average 60.0) internal successors, (180), 3 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:01:17,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:01:17,308 INFO L93 Difference]: Finished difference Result 137213 states and 152022 transitions. [2024-11-16 04:01:17,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:01:17,308 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 60.0) internal successors, (180), 3 states have internal predecessors, (180), 0 states have call successors, (0), 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 406 [2024-11-16 04:01:17,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:01:17,392 INFO L225 Difference]: With dead ends: 137213 [2024-11-16 04:01:17,392 INFO L226 Difference]: Without dead ends: 80832 [2024-11-16 04:01:17,409 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 412 GetRequests, 405 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2024-11-16 04:01:17,409 INFO L432 NwaCegarLoop]: 975 mSDtfsCounter, 824 mSDsluCounter, 142 mSDsCounter, 0 mSdLazyCounter, 2460 mSolverCounterSat, 780 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 824 SdHoareTripleChecker+Valid, 1117 SdHoareTripleChecker+Invalid, 3240 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 780 IncrementalHoareTripleChecker+Valid, 2460 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2024-11-16 04:01:17,410 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [824 Valid, 1117 Invalid, 3240 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [780 Valid, 2460 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2024-11-16 04:01:17,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80832 states. [2024-11-16 04:01:18,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80832 to 79233. [2024-11-16 04:01:18,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79233 states, 79232 states have (on average 1.0809142770597737) internal successors, (85643), 79232 states have internal predecessors, (85643), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:01:18,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79233 states to 79233 states and 85643 transitions. [2024-11-16 04:01:18,174 INFO L78 Accepts]: Start accepts. Automaton has 79233 states and 85643 transitions. Word has length 406 [2024-11-16 04:01:18,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:01:18,174 INFO L471 AbstractCegarLoop]: Abstraction has 79233 states and 85643 transitions. [2024-11-16 04:01:18,174 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 60.0) internal successors, (180), 3 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:01:18,174 INFO L276 IsEmpty]: Start isEmpty. Operand 79233 states and 85643 transitions. [2024-11-16 04:01:18,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 443 [2024-11-16 04:01:18,183 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:01:18,184 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:01:18,201 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-16 04:01:18,387 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 04:01:18,388 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:01:18,388 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:01:18,389 INFO L85 PathProgramCache]: Analyzing trace with hash 1707608511, now seen corresponding path program 1 times [2024-11-16 04:01:18,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:01:18,389 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1970552414] [2024-11-16 04:01:18,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:01:18,389 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:01:18,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:01:20,027 INFO L134 CoverageAnalysis]: Checked inductivity of 657 backedges. 392 proven. 111 refuted. 0 times theorem prover too weak. 154 trivial. 0 not checked. [2024-11-16 04:01:20,027 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:01:20,027 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1970552414] [2024-11-16 04:01:20,027 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1970552414] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 04:01:20,027 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1443808116] [2024-11-16 04:01:20,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:01:20,028 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 04:01:20,028 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 04:01:20,029 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) [2024-11-16 04:01:20,030 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-16 04:01:20,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:01:20,169 INFO L255 TraceCheckSpWp]: Trace formula consists of 607 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-16 04:01:20,173 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 04:01:20,864 INFO L134 CoverageAnalysis]: Checked inductivity of 657 backedges. 389 proven. 0 refuted. 0 times theorem prover too weak. 268 trivial. 0 not checked. [2024-11-16 04:01:20,864 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 04:01:20,864 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1443808116] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:01:20,865 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 04:01:20,865 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2024-11-16 04:01:20,865 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [721641206] [2024-11-16 04:01:20,865 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:01:20,866 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:01:20,866 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:01:20,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:01:20,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-16 04:01:20,867 INFO L87 Difference]: Start difference. First operand 79233 states and 85643 transitions. Second operand has 3 states, 3 states have (on average 73.66666666666667) internal successors, (221), 2 states have internal predecessors, (221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:01:23,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:01:23,658 INFO L93 Difference]: Finished difference Result 153740 states and 166348 transitions. [2024-11-16 04:01:23,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:01:23,666 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 73.66666666666667) internal successors, (221), 2 states have internal predecessors, (221), 0 states have call successors, (0), 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 442 [2024-11-16 04:01:23,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:01:23,750 INFO L225 Difference]: With dead ends: 153740 [2024-11-16 04:01:23,751 INFO L226 Difference]: Without dead ends: 83183 [2024-11-16 04:01:23,762 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 446 GetRequests, 441 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-16 04:01:23,763 INFO L432 NwaCegarLoop]: 1030 mSDtfsCounter, 684 mSDsluCounter, 136 mSDsCounter, 0 mSdLazyCounter, 2457 mSolverCounterSat, 113 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 684 SdHoareTripleChecker+Valid, 1166 SdHoareTripleChecker+Invalid, 2570 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 113 IncrementalHoareTripleChecker+Valid, 2457 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-11-16 04:01:23,763 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [684 Valid, 1166 Invalid, 2570 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [113 Valid, 2457 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-11-16 04:01:23,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83183 states. [2024-11-16 04:01:24,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83183 to 81597. [2024-11-16 04:01:24,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81597 states, 81596 states have (on average 1.0726873866365998) internal successors, (87527), 81596 states have internal predecessors, (87527), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:01:24,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81597 states to 81597 states and 87527 transitions. [2024-11-16 04:01:24,512 INFO L78 Accepts]: Start accepts. Automaton has 81597 states and 87527 transitions. Word has length 442 [2024-11-16 04:01:24,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:01:24,513 INFO L471 AbstractCegarLoop]: Abstraction has 81597 states and 87527 transitions. [2024-11-16 04:01:24,513 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 73.66666666666667) internal successors, (221), 2 states have internal predecessors, (221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:01:24,513 INFO L276 IsEmpty]: Start isEmpty. Operand 81597 states and 87527 transitions. [2024-11-16 04:01:24,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 490 [2024-11-16 04:01:24,520 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:01:24,520 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:01:24,533 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-16 04:01:24,721 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 04:01:24,721 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:01:24,722 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:01:24,722 INFO L85 PathProgramCache]: Analyzing trace with hash 1250687148, now seen corresponding path program 1 times [2024-11-16 04:01:24,722 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:01:24,722 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [462736810] [2024-11-16 04:01:24,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:01:24,722 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:01:25,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:01:25,247 INFO L134 CoverageAnalysis]: Checked inductivity of 1011 backedges. 768 proven. 0 refuted. 0 times theorem prover too weak. 243 trivial. 0 not checked. [2024-11-16 04:01:25,248 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:01:25,248 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [462736810] [2024-11-16 04:01:25,248 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [462736810] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:01:25,248 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:01:25,248 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 04:01:25,248 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [586998864] [2024-11-16 04:01:25,248 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:01:25,249 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:01:25,249 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:01:25,250 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:01:25,250 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:01:25,250 INFO L87 Difference]: Start difference. First operand 81597 states and 87527 transitions. Second operand has 3 states, 3 states have (on average 97.66666666666667) internal successors, (293), 3 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:01:28,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:01:28,406 INFO L93 Difference]: Finished difference Result 161614 states and 173398 transitions. [2024-11-16 04:01:28,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:01:28,407 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 97.66666666666667) internal successors, (293), 3 states have internal predecessors, (293), 0 states have call successors, (0), 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 489 [2024-11-16 04:01:28,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:01:28,510 INFO L225 Difference]: With dead ends: 161614 [2024-11-16 04:01:28,511 INFO L226 Difference]: Without dead ends: 80807 [2024-11-16 04:01:28,567 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 [2024-11-16 04:01:28,568 INFO L432 NwaCegarLoop]: 1349 mSDtfsCounter, 940 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 2392 mSolverCounterSat, 584 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 940 SdHoareTripleChecker+Valid, 1433 SdHoareTripleChecker+Invalid, 2976 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 584 IncrementalHoareTripleChecker+Valid, 2392 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2024-11-16 04:01:28,568 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [940 Valid, 1433 Invalid, 2976 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [584 Valid, 2392 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2024-11-16 04:01:28,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80807 states. [2024-11-16 04:01:29,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80807 to 80008. [2024-11-16 04:01:29,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80008 states, 80007 states have (on average 1.0587698576374567) internal successors, (84709), 80007 states have internal predecessors, (84709), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:01:29,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80008 states to 80008 states and 84709 transitions. [2024-11-16 04:01:29,664 INFO L78 Accepts]: Start accepts. Automaton has 80008 states and 84709 transitions. Word has length 489 [2024-11-16 04:01:29,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:01:29,665 INFO L471 AbstractCegarLoop]: Abstraction has 80008 states and 84709 transitions. [2024-11-16 04:01:29,665 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 97.66666666666667) internal successors, (293), 3 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:01:29,665 INFO L276 IsEmpty]: Start isEmpty. Operand 80008 states and 84709 transitions. [2024-11-16 04:01:29,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 504 [2024-11-16 04:01:29,676 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:01:29,677 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 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] [2024-11-16 04:01:29,677 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-16 04:01:29,677 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:01:29,678 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:01:29,678 INFO L85 PathProgramCache]: Analyzing trace with hash 1207084744, now seen corresponding path program 1 times [2024-11-16 04:01:29,678 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:01:29,678 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [386325930] [2024-11-16 04:01:29,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:01:29,678 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:01:29,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:01:30,235 INFO L134 CoverageAnalysis]: Checked inductivity of 1014 backedges. 771 proven. 0 refuted. 0 times theorem prover too weak. 243 trivial. 0 not checked. [2024-11-16 04:01:30,236 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:01:30,236 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [386325930] [2024-11-16 04:01:30,236 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [386325930] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:01:30,236 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:01:30,236 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 04:01:30,236 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1016581504] [2024-11-16 04:01:30,236 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:01:30,237 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:01:30,237 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:01:30,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:01:30,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:01:30,238 INFO L87 Difference]: Start difference. First operand 80008 states and 84709 transitions. Second operand has 3 states, 3 states have (on average 102.33333333333333) internal successors, (307), 3 states have internal predecessors, (307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)