./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem16_label10.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/Problem16_label10.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 ea5326ea6a4625baef91f26404c87dc5d5aed789a046625372b5a13e975410bc --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 04:12:11,467 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 04:12:11,543 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-16 04:12:11,548 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 04:12:11,549 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 04:12:11,582 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 04:12:11,582 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 04:12:11,583 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 04:12:11,584 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-16 04:12:11,585 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-16 04:12:11,585 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 04:12:11,585 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 04:12:11,586 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 04:12:11,588 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 04:12:11,588 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 04:12:11,589 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 04:12:11,589 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 04:12:11,589 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-16 04:12:11,590 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 04:12:11,590 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-16 04:12:11,590 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 04:12:11,595 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 04:12:11,596 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 04:12:11,596 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 04:12:11,596 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 04:12:11,596 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-16 04:12:11,596 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 04:12:11,597 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 04:12:11,597 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 04:12:11,597 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 04:12:11,597 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-16 04:12:11,597 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 04:12:11,598 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 04:12:11,598 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 04:12:11,599 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 04:12:11,599 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 04:12:11,600 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 04:12:11,600 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 04:12:11,601 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 04:12:11,601 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 04:12:11,601 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 04:12:11,602 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 04:12:11,602 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ea5326ea6a4625baef91f26404c87dc5d5aed789a046625372b5a13e975410bc [2024-11-16 04:12:11,859 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 04:12:11,885 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 04:12:11,888 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 04:12:11,890 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 04:12:11,890 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 04:12:11,891 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem16_label10.c [2024-11-16 04:12:13,370 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 04:12:13,726 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 04:12:13,728 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem16_label10.c [2024-11-16 04:12:13,749 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a0fada1ad/0d4c92d8121546e38121f67490dcf44a/FLAG9dbe869c9 [2024-11-16 04:12:13,944 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a0fada1ad/0d4c92d8121546e38121f67490dcf44a [2024-11-16 04:12:13,947 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 04:12:13,948 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 04:12:13,950 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 04:12:13,951 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 04:12:13,956 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 04:12:13,957 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 04:12:13" (1/1) ... [2024-11-16 04:12:13,958 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3dff5476 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:12:13, skipping insertion in model container [2024-11-16 04:12:13,958 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 04:12:13" (1/1) ... [2024-11-16 04:12:14,024 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 04:12:14,238 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/Problem16_label10.c[3517,3530] [2024-11-16 04:12:14,644 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 04:12:14,655 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 04:12:14,678 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/Problem16_label10.c[3517,3530] [2024-11-16 04:12:14,899 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 04:12:14,924 INFO L204 MainTranslator]: Completed translation [2024-11-16 04:12:14,924 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:12:14 WrapperNode [2024-11-16 04:12:14,925 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 04:12:14,926 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 04:12:14,926 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 04:12:14,926 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 04:12:14,934 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:12:14" (1/1) ... [2024-11-16 04:12:14,978 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:12:14" (1/1) ... [2024-11-16 04:12:15,112 INFO L138 Inliner]: procedures = 15, calls = 9, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 1769 [2024-11-16 04:12:15,113 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 04:12:15,113 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 04:12:15,114 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 04:12:15,114 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 04:12:15,125 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:12:14" (1/1) ... [2024-11-16 04:12:15,125 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:12:14" (1/1) ... [2024-11-16 04:12:15,141 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:12:14" (1/1) ... [2024-11-16 04:12:15,199 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 04:12:15,200 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:12:14" (1/1) ... [2024-11-16 04:12:15,200 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:12:14" (1/1) ... [2024-11-16 04:12:15,245 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:12:14" (1/1) ... [2024-11-16 04:12:15,253 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:12:14" (1/1) ... [2024-11-16 04:12:15,264 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:12:14" (1/1) ... [2024-11-16 04:12:15,273 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:12:14" (1/1) ... [2024-11-16 04:12:15,292 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 04:12:15,293 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 04:12:15,293 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 04:12:15,293 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 04:12:15,294 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:12:14" (1/1) ... [2024-11-16 04:12:15,300 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 04:12:15,313 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 04:12:15,331 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 04:12:15,334 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 04:12:15,381 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 04:12:15,382 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-16 04:12:15,382 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 04:12:15,382 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 04:12:15,459 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 04:12:15,461 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 04:12:17,475 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L1501: havoc calculate_output_#t~ret7#1; [2024-11-16 04:12:17,539 INFO L? ?]: Removed 276 outVars from TransFormulas that were not future-live. [2024-11-16 04:12:17,539 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 04:12:17,559 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 04:12:17,559 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 04:12:17,559 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 04:12:17 BoogieIcfgContainer [2024-11-16 04:12:17,559 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 04:12:17,562 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 04:12:17,562 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 04:12:17,565 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 04:12:17,565 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 04:12:13" (1/3) ... [2024-11-16 04:12:17,566 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@678e791e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 04:12:17, skipping insertion in model container [2024-11-16 04:12:17,566 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:12:14" (2/3) ... [2024-11-16 04:12:17,566 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@678e791e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 04:12:17, skipping insertion in model container [2024-11-16 04:12:17,567 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 04:12:17" (3/3) ... [2024-11-16 04:12:17,569 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem16_label10.c [2024-11-16 04:12:17,587 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 04:12:17,587 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-16 04:12:17,663 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 04:12:17,669 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;@770c4b47, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 04:12:17,670 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-16 04:12:17,676 INFO L276 IsEmpty]: Start isEmpty. Operand has 399 states, 397 states have (on average 1.8287153652392947) internal successors, (726), 398 states have internal predecessors, (726), 0 states have call successors, (0), 0 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 04:12:17,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2024-11-16 04:12:17,685 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:12:17,685 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] [2024-11-16 04:12:17,686 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:12:17,690 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:12:17,690 INFO L85 PathProgramCache]: Analyzing trace with hash -1459841839, now seen corresponding path program 1 times [2024-11-16 04:12:17,699 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:12:17,699 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [306715406] [2024-11-16 04:12:17,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:12:17,700 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:12:17,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:12:18,024 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 04:12:18,025 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:12:18,025 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [306715406] [2024-11-16 04:12:18,026 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [306715406] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:12:18,026 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:12:18,026 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 04:12:18,028 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [386353110] [2024-11-16 04:12:18,029 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:12:18,032 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:12:18,034 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:12:18,056 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:12:18,056 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:12:18,060 INFO L87 Difference]: Start difference. First operand has 399 states, 397 states have (on average 1.8287153652392947) internal successors, (726), 398 states have internal predecessors, (726), 0 states have call successors, (0), 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 11.333333333333334) internal successors, (34), 2 states have internal predecessors, (34), 0 states have call successors, (0), 0 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 04:12:19,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:12:19,772 INFO L93 Difference]: Finished difference Result 1128 states and 2109 transitions. [2024-11-16 04:12:19,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:12:19,775 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 2 states have internal predecessors, (34), 0 states have call successors, (0), 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 34 [2024-11-16 04:12:19,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:12:19,790 INFO L225 Difference]: With dead ends: 1128 [2024-11-16 04:12:19,790 INFO L226 Difference]: Without dead ends: 665 [2024-11-16 04:12:19,795 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 04:12:19,800 INFO L432 NwaCegarLoop]: 248 mSDtfsCounter, 355 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 864 mSolverCounterSat, 450 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 355 SdHoareTripleChecker+Valid, 258 SdHoareTripleChecker+Invalid, 1314 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 450 IncrementalHoareTripleChecker+Valid, 864 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-16 04:12:19,800 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [355 Valid, 258 Invalid, 1314 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [450 Valid, 864 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-16 04:12:19,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 665 states. [2024-11-16 04:12:19,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 665 to 665. [2024-11-16 04:12:19,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 665 states, 664 states have (on average 1.516566265060241) internal successors, (1007), 664 states have internal predecessors, (1007), 0 states have call successors, (0), 0 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 04:12:19,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 665 states to 665 states and 1007 transitions. [2024-11-16 04:12:19,873 INFO L78 Accepts]: Start accepts. Automaton has 665 states and 1007 transitions. Word has length 34 [2024-11-16 04:12:19,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:12:19,875 INFO L471 AbstractCegarLoop]: Abstraction has 665 states and 1007 transitions. [2024-11-16 04:12:19,875 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 2 states have internal predecessors, (34), 0 states have call successors, (0), 0 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 04:12:19,875 INFO L276 IsEmpty]: Start isEmpty. Operand 665 states and 1007 transitions. [2024-11-16 04:12:19,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-16 04:12:19,878 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:12:19,878 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:12:19,879 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 04:12:19,880 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:12:19,880 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:12:19,881 INFO L85 PathProgramCache]: Analyzing trace with hash -269581475, now seen corresponding path program 1 times [2024-11-16 04:12:19,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:12:19,881 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1158998518] [2024-11-16 04:12:19,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:12:19,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:12:19,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:12:20,234 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 04:12:20,235 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:12:20,235 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1158998518] [2024-11-16 04:12:20,236 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1158998518] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:12:20,236 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:12:20,236 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 04:12:20,237 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1942629776] [2024-11-16 04:12:20,237 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:12:20,238 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 04:12:20,240 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:12:20,242 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 04:12:20,242 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 04:12:20,242 INFO L87 Difference]: Start difference. First operand 665 states and 1007 transitions. Second operand has 4 states, 4 states have (on average 25.75) internal successors, (103), 3 states have internal predecessors, (103), 0 states have call successors, (0), 0 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 04:12:22,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:12:22,144 INFO L93 Difference]: Finished difference Result 2318 states and 3423 transitions. [2024-11-16 04:12:22,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 04:12:22,146 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.75) internal successors, (103), 3 states have internal predecessors, (103), 0 states have call successors, (0), 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 103 [2024-11-16 04:12:22,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:12:22,152 INFO L225 Difference]: With dead ends: 2318 [2024-11-16 04:12:22,153 INFO L226 Difference]: Without dead ends: 1655 [2024-11-16 04:12:22,157 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-16 04:12:22,160 INFO L432 NwaCegarLoop]: 35 mSDtfsCounter, 1011 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 1496 mSolverCounterSat, 489 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1011 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 1985 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 489 IncrementalHoareTripleChecker+Valid, 1496 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-16 04:12:22,160 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1011 Valid, 47 Invalid, 1985 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [489 Valid, 1496 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-16 04:12:22,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1655 states. [2024-11-16 04:12:22,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1655 to 1655. [2024-11-16 04:12:22,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1655 states, 1654 states have (on average 1.400241837968561) internal successors, (2316), 1654 states have internal predecessors, (2316), 0 states have call successors, (0), 0 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 04:12:22,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1655 states to 1655 states and 2316 transitions. [2024-11-16 04:12:22,213 INFO L78 Accepts]: Start accepts. Automaton has 1655 states and 2316 transitions. Word has length 103 [2024-11-16 04:12:22,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:12:22,214 INFO L471 AbstractCegarLoop]: Abstraction has 1655 states and 2316 transitions. [2024-11-16 04:12:22,214 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.75) internal successors, (103), 3 states have internal predecessors, (103), 0 states have call successors, (0), 0 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 04:12:22,214 INFO L276 IsEmpty]: Start isEmpty. Operand 1655 states and 2316 transitions. [2024-11-16 04:12:22,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2024-11-16 04:12:22,219 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:12:22,219 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:12:22,219 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-16 04:12:22,219 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:12:22,220 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:12:22,220 INFO L85 PathProgramCache]: Analyzing trace with hash 1990537023, now seen corresponding path program 1 times [2024-11-16 04:12:22,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:12:22,221 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1474317517] [2024-11-16 04:12:22,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:12:22,221 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:12:22,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:12:22,471 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 04:12:22,471 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:12:22,472 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1474317517] [2024-11-16 04:12:22,472 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1474317517] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:12:22,472 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:12:22,472 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 04:12:22,472 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [267444202] [2024-11-16 04:12:22,473 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:12:22,473 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:12:22,473 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:12:22,474 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:12:22,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:12:22,474 INFO L87 Difference]: Start difference. First operand 1655 states and 2316 transitions. Second operand has 3 states, 3 states have (on average 55.333333333333336) internal successors, (166), 2 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:12:23,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:12:23,786 INFO L93 Difference]: Finished difference Result 3638 states and 5255 transitions. [2024-11-16 04:12:23,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:12:23,786 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.333333333333336) internal successors, (166), 2 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 166 [2024-11-16 04:12:23,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:12:23,798 INFO L225 Difference]: With dead ends: 3638 [2024-11-16 04:12:23,799 INFO L226 Difference]: Without dead ends: 2315 [2024-11-16 04:12:23,801 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 04:12:23,801 INFO L432 NwaCegarLoop]: 75 mSDtfsCounter, 279 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 882 mSolverCounterSat, 380 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 279 SdHoareTripleChecker+Valid, 80 SdHoareTripleChecker+Invalid, 1262 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 380 IncrementalHoareTripleChecker+Valid, 882 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-16 04:12:23,802 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [279 Valid, 80 Invalid, 1262 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [380 Valid, 882 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-16 04:12:23,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2315 states. [2024-11-16 04:12:23,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2315 to 2315. [2024-11-16 04:12:23,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2315 states, 2314 states have (on average 1.3487467588591184) internal successors, (3121), 2314 states have internal predecessors, (3121), 0 states have call successors, (0), 0 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 04:12:23,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2315 states to 2315 states and 3121 transitions. [2024-11-16 04:12:23,846 INFO L78 Accepts]: Start accepts. Automaton has 2315 states and 3121 transitions. Word has length 166 [2024-11-16 04:12:23,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:12:23,848 INFO L471 AbstractCegarLoop]: Abstraction has 2315 states and 3121 transitions. [2024-11-16 04:12:23,849 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.333333333333336) internal successors, (166), 2 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:12:23,849 INFO L276 IsEmpty]: Start isEmpty. Operand 2315 states and 3121 transitions. [2024-11-16 04:12:23,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2024-11-16 04:12:23,852 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:12:23,852 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, 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] [2024-11-16 04:12:23,852 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-16 04:12:23,852 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:12:23,853 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:12:23,853 INFO L85 PathProgramCache]: Analyzing trace with hash -1429692771, now seen corresponding path program 1 times [2024-11-16 04:12:23,853 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:12:23,854 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1451584500] [2024-11-16 04:12:23,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:12:23,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:12:23,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:12:24,023 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 61 proven. 0 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2024-11-16 04:12:24,023 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:12:24,023 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1451584500] [2024-11-16 04:12:24,024 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1451584500] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:12:24,024 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:12:24,024 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 04:12:24,024 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1490848151] [2024-11-16 04:12:24,024 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:12:24,025 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:12:24,025 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:12:24,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:12:24,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:12:24,028 INFO L87 Difference]: Start difference. First operand 2315 states and 3121 transitions. Second operand has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 2 states have internal predecessors, (124), 0 states have call successors, (0), 0 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 04:12:25,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:12:25,152 INFO L93 Difference]: Finished difference Result 5618 states and 7718 transitions. [2024-11-16 04:12:25,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:12:25,153 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 2 states have internal predecessors, (124), 0 states have call successors, (0), 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 202 [2024-11-16 04:12:25,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:12:25,167 INFO L225 Difference]: With dead ends: 5618 [2024-11-16 04:12:25,167 INFO L226 Difference]: Without dead ends: 3635 [2024-11-16 04:12:25,171 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 04:12:25,173 INFO L432 NwaCegarLoop]: 153 mSDtfsCounter, 360 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 811 mSolverCounterSat, 307 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 360 SdHoareTripleChecker+Valid, 158 SdHoareTripleChecker+Invalid, 1118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 307 IncrementalHoareTripleChecker+Valid, 811 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-16 04:12:25,174 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [360 Valid, 158 Invalid, 1118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [307 Valid, 811 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-16 04:12:25,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3635 states. [2024-11-16 04:12:25,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3635 to 2975. [2024-11-16 04:12:25,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2975 states, 2974 states have (on average 1.2434431741761938) internal successors, (3698), 2974 states have internal predecessors, (3698), 0 states have call successors, (0), 0 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 04:12:25,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2975 states to 2975 states and 3698 transitions. [2024-11-16 04:12:25,230 INFO L78 Accepts]: Start accepts. Automaton has 2975 states and 3698 transitions. Word has length 202 [2024-11-16 04:12:25,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:12:25,231 INFO L471 AbstractCegarLoop]: Abstraction has 2975 states and 3698 transitions. [2024-11-16 04:12:25,231 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 2 states have internal predecessors, (124), 0 states have call successors, (0), 0 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 04:12:25,231 INFO L276 IsEmpty]: Start isEmpty. Operand 2975 states and 3698 transitions. [2024-11-16 04:12:25,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2024-11-16 04:12:25,234 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:12:25,234 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, 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, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:12:25,234 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-16 04:12:25,234 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:12:25,235 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:12:25,235 INFO L85 PathProgramCache]: Analyzing trace with hash 705948923, now seen corresponding path program 1 times [2024-11-16 04:12:25,235 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:12:25,235 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1444700705] [2024-11-16 04:12:25,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:12:25,236 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:12:25,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:12:25,417 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 148 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 04:12:25,418 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:12:25,418 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1444700705] [2024-11-16 04:12:25,418 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1444700705] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:12:25,418 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:12:25,418 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 04:12:25,418 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [931317992] [2024-11-16 04:12:25,418 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:12:25,419 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:12:25,419 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:12:25,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:12:25,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:12:25,420 INFO L87 Difference]: Start difference. First operand 2975 states and 3698 transitions. Second operand has 3 states, 3 states have (on average 73.0) internal successors, (219), 3 states have internal predecessors, (219), 0 states have call successors, (0), 0 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 04:12:26,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:12:26,595 INFO L93 Difference]: Finished difference Result 6938 states and 8680 transitions. [2024-11-16 04:12:26,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:12:26,596 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 73.0) internal successors, (219), 3 states have internal predecessors, (219), 0 states have call successors, (0), 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 219 [2024-11-16 04:12:26,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:12:26,609 INFO L225 Difference]: With dead ends: 6938 [2024-11-16 04:12:26,610 INFO L226 Difference]: Without dead ends: 3965 [2024-11-16 04:12:26,614 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 04:12:26,615 INFO L432 NwaCegarLoop]: 537 mSDtfsCounter, 288 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 796 mSolverCounterSat, 298 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 288 SdHoareTripleChecker+Valid, 543 SdHoareTripleChecker+Invalid, 1094 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 298 IncrementalHoareTripleChecker+Valid, 796 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-16 04:12:26,615 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [288 Valid, 543 Invalid, 1094 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [298 Valid, 796 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-16 04:12:26,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3965 states. [2024-11-16 04:12:26,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3965 to 3965. [2024-11-16 04:12:26,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3965 states, 3964 states have (on average 1.0734106962663976) internal successors, (4255), 3964 states have internal predecessors, (4255), 0 states have call successors, (0), 0 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 04:12:26,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3965 states to 3965 states and 4255 transitions. [2024-11-16 04:12:26,683 INFO L78 Accepts]: Start accepts. Automaton has 3965 states and 4255 transitions. Word has length 219 [2024-11-16 04:12:26,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:12:26,684 INFO L471 AbstractCegarLoop]: Abstraction has 3965 states and 4255 transitions. [2024-11-16 04:12:26,684 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 73.0) internal successors, (219), 3 states have internal predecessors, (219), 0 states have call successors, (0), 0 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 04:12:26,684 INFO L276 IsEmpty]: Start isEmpty. Operand 3965 states and 4255 transitions. [2024-11-16 04:12:26,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 271 [2024-11-16 04:12:26,687 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:12:26,687 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:12:26,688 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-16 04:12:26,688 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:12:26,688 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:12:26,689 INFO L85 PathProgramCache]: Analyzing trace with hash -440795845, now seen corresponding path program 1 times [2024-11-16 04:12:26,689 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:12:26,689 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [903604278] [2024-11-16 04:12:26,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:12:26,689 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:12:26,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:12:26,917 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 04:12:26,917 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:12:26,918 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [903604278] [2024-11-16 04:12:26,918 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [903604278] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:12:26,918 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:12:26,919 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 04:12:26,919 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2094830451] [2024-11-16 04:12:26,920 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:12:26,920 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:12:26,920 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:12:26,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:12:26,921 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:12:26,921 INFO L87 Difference]: Start difference. First operand 3965 states and 4255 transitions. Second operand has 3 states, 3 states have (on average 90.0) internal successors, (270), 3 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:12:27,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:12:27,836 INFO L93 Difference]: Finished difference Result 9248 states and 9956 transitions. [2024-11-16 04:12:27,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:12:27,837 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 90.0) internal successors, (270), 3 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 270 [2024-11-16 04:12:27,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:12:27,856 INFO L225 Difference]: With dead ends: 9248 [2024-11-16 04:12:27,857 INFO L226 Difference]: Without dead ends: 5285 [2024-11-16 04:12:27,863 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 04:12:27,868 INFO L432 NwaCegarLoop]: 421 mSDtfsCounter, 305 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 772 mSolverCounterSat, 91 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 305 SdHoareTripleChecker+Valid, 429 SdHoareTripleChecker+Invalid, 863 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 91 IncrementalHoareTripleChecker+Valid, 772 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-16 04:12:27,868 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [305 Valid, 429 Invalid, 863 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [91 Valid, 772 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-16 04:12:27,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5285 states. [2024-11-16 04:12:27,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5285 to 5285. [2024-11-16 04:12:27,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5285 states, 5284 states have (on average 1.049205147615443) internal successors, (5544), 5284 states have internal predecessors, (5544), 0 states have call successors, (0), 0 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 04:12:27,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5285 states to 5285 states and 5544 transitions. [2024-11-16 04:12:27,958 INFO L78 Accepts]: Start accepts. Automaton has 5285 states and 5544 transitions. Word has length 270 [2024-11-16 04:12:27,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:12:27,959 INFO L471 AbstractCegarLoop]: Abstraction has 5285 states and 5544 transitions. [2024-11-16 04:12:27,959 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 90.0) internal successors, (270), 3 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:12:27,960 INFO L276 IsEmpty]: Start isEmpty. Operand 5285 states and 5544 transitions. [2024-11-16 04:12:27,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 376 [2024-11-16 04:12:27,964 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:12:27,964 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:12:27,965 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-16 04:12:27,965 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:12:27,965 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:12:27,965 INFO L85 PathProgramCache]: Analyzing trace with hash -806381759, now seen corresponding path program 1 times [2024-11-16 04:12:27,966 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:12:27,966 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1340939685] [2024-11-16 04:12:27,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:12:27,966 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:12:28,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:12:28,552 INFO L134 CoverageAnalysis]: Checked inductivity of 157 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 119 trivial. 0 not checked. [2024-11-16 04:12:28,552 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:12:28,552 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1340939685] [2024-11-16 04:12:28,553 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1340939685] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 04:12:28,553 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [520451476] [2024-11-16 04:12:28,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:12:28,553 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 04:12:28,553 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 04:12:28,556 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 04:12:28,558 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 04:12:28,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:12:28,717 INFO L255 TraceCheckSpWp]: Trace formula consists of 470 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-16 04:12:28,731 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 04:12:29,238 INFO L134 CoverageAnalysis]: Checked inductivity of 157 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 157 trivial. 0 not checked. [2024-11-16 04:12:29,238 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 04:12:29,239 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [520451476] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:12:29,239 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 04:12:29,239 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 4 [2024-11-16 04:12:29,239 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1887381394] [2024-11-16 04:12:29,239 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:12:29,240 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:12:29,240 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:12:29,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:12:29,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-16 04:12:29,241 INFO L87 Difference]: Start difference. First operand 5285 states and 5544 transitions. Second operand has 3 states, 3 states have (on average 83.33333333333333) internal successors, (250), 2 states have internal predecessors, (250), 0 states have call successors, (0), 0 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 04:12:30,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:12:30,085 INFO L93 Difference]: Finished difference Result 6278 states and 6561 transitions. [2024-11-16 04:12:30,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:12:30,085 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 83.33333333333333) internal successors, (250), 2 states have internal predecessors, (250), 0 states have call successors, (0), 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 375 [2024-11-16 04:12:30,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:12:30,103 INFO L225 Difference]: With dead ends: 6278 [2024-11-16 04:12:30,103 INFO L226 Difference]: Without dead ends: 6275 [2024-11-16 04:12:30,105 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 377 GetRequests, 374 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-16 04:12:30,106 INFO L432 NwaCegarLoop]: 76 mSDtfsCounter, 108 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 744 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 83 SdHoareTripleChecker+Invalid, 776 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 744 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-16 04:12:30,106 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [108 Valid, 83 Invalid, 776 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 744 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-16 04:12:30,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6275 states. [2024-11-16 04:12:30,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6275 to 5615. [2024-11-16 04:12:30,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5615 states, 5614 states have (on average 1.0486284289276808) internal successors, (5887), 5614 states have internal predecessors, (5887), 0 states have call successors, (0), 0 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 04:12:30,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5615 states to 5615 states and 5887 transitions. [2024-11-16 04:12:30,210 INFO L78 Accepts]: Start accepts. Automaton has 5615 states and 5887 transitions. Word has length 375 [2024-11-16 04:12:30,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:12:30,211 INFO L471 AbstractCegarLoop]: Abstraction has 5615 states and 5887 transitions. [2024-11-16 04:12:30,211 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 83.33333333333333) internal successors, (250), 2 states have internal predecessors, (250), 0 states have call successors, (0), 0 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 04:12:30,212 INFO L276 IsEmpty]: Start isEmpty. Operand 5615 states and 5887 transitions. [2024-11-16 04:12:30,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 614 [2024-11-16 04:12:30,222 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:12:30,223 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, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:12:30,241 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-16 04:12:30,427 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 04:12:30,428 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:12:30,428 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:12:30,428 INFO L85 PathProgramCache]: Analyzing trace with hash 196344990, now seen corresponding path program 1 times [2024-11-16 04:12:30,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:12:30,429 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [114685578] [2024-11-16 04:12:30,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:12:30,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:12:30,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:12:31,125 INFO L134 CoverageAnalysis]: Checked inductivity of 761 backedges. 634 proven. 0 refuted. 0 times theorem prover too weak. 127 trivial. 0 not checked. [2024-11-16 04:12:31,125 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:12:31,126 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [114685578] [2024-11-16 04:12:31,126 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [114685578] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:12:31,126 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:12:31,126 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 04:12:31,126 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [25487944] [2024-11-16 04:12:31,126 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:12:31,127 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:12:31,127 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:12:31,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:12:31,128 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:12:31,129 INFO L87 Difference]: Start difference. First operand 5615 states and 5887 transitions. Second operand has 3 states, 3 states have (on average 162.66666666666666) internal successors, (488), 3 states have internal predecessors, (488), 0 states have call successors, (0), 0 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 04:12:32,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:12:32,008 INFO L93 Difference]: Finished difference Result 12878 states and 13562 transitions. [2024-11-16 04:12:32,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:12:32,009 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 162.66666666666666) internal successors, (488), 3 states have internal predecessors, (488), 0 states have call successors, (0), 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 613 [2024-11-16 04:12:32,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:12:32,040 INFO L225 Difference]: With dead ends: 12878 [2024-11-16 04:12:32,040 INFO L226 Difference]: Without dead ends: 7595 [2024-11-16 04:12:32,051 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:12:32,052 INFO L432 NwaCegarLoop]: 35 mSDtfsCounter, 224 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 766 mSolverCounterSat, 99 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 224 SdHoareTripleChecker+Valid, 40 SdHoareTripleChecker+Invalid, 865 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 99 IncrementalHoareTripleChecker+Valid, 766 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-16 04:12:32,053 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [224 Valid, 40 Invalid, 865 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [99 Valid, 766 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-16 04:12:32,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7595 states. [2024-11-16 04:12:32,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7595 to 7265. [2024-11-16 04:12:32,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7265 states, 7264 states have (on average 1.051762114537445) internal successors, (7640), 7264 states have internal predecessors, (7640), 0 states have call successors, (0), 0 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 04:12:32,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7265 states to 7265 states and 7640 transitions. [2024-11-16 04:12:32,212 INFO L78 Accepts]: Start accepts. Automaton has 7265 states and 7640 transitions. Word has length 613 [2024-11-16 04:12:32,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:12:32,213 INFO L471 AbstractCegarLoop]: Abstraction has 7265 states and 7640 transitions. [2024-11-16 04:12:32,214 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 162.66666666666666) internal successors, (488), 3 states have internal predecessors, (488), 0 states have call successors, (0), 0 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 04:12:32,214 INFO L276 IsEmpty]: Start isEmpty. Operand 7265 states and 7640 transitions. [2024-11-16 04:12:32,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 703 [2024-11-16 04:12:32,229 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:12:32,231 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, 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, 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, 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, 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] [2024-11-16 04:12:32,231 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-16 04:12:32,231 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:12:32,232 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:12:32,232 INFO L85 PathProgramCache]: Analyzing trace with hash -2004028565, now seen corresponding path program 1 times [2024-11-16 04:12:32,232 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:12:32,232 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1015010322] [2024-11-16 04:12:32,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:12:32,232 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:12:32,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:12:32,804 INFO L134 CoverageAnalysis]: Checked inductivity of 786 backedges. 412 proven. 0 refuted. 0 times theorem prover too weak. 374 trivial. 0 not checked. [2024-11-16 04:12:32,805 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:12:32,806 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1015010322] [2024-11-16 04:12:32,806 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1015010322] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:12:32,806 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:12:32,806 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 04:12:32,806 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [394670379] [2024-11-16 04:12:32,806 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:12:32,807 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:12:32,808 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:12:32,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:12:32,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:12:32,809 INFO L87 Difference]: Start difference. First operand 7265 states and 7640 transitions. Second operand has 3 states, 3 states have (on average 131.66666666666666) internal successors, (395), 3 states have internal predecessors, (395), 0 states have call successors, (0), 0 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 04:12:33,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:12:33,623 INFO L93 Difference]: Finished difference Result 16178 states and 17068 transitions. [2024-11-16 04:12:33,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:12:33,624 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 131.66666666666666) internal successors, (395), 3 states have internal predecessors, (395), 0 states have call successors, (0), 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 702 [2024-11-16 04:12:33,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:12:33,643 INFO L225 Difference]: With dead ends: 16178 [2024-11-16 04:12:33,644 INFO L226 Difference]: Without dead ends: 8915 [2024-11-16 04:12:33,653 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 04:12:33,654 INFO L432 NwaCegarLoop]: 432 mSDtfsCounter, 220 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 756 mSolverCounterSat, 80 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 220 SdHoareTripleChecker+Valid, 440 SdHoareTripleChecker+Invalid, 836 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 80 IncrementalHoareTripleChecker+Valid, 756 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-16 04:12:33,654 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [220 Valid, 440 Invalid, 836 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [80 Valid, 756 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-16 04:12:33,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8915 states. [2024-11-16 04:12:33,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8915 to 8585. [2024-11-16 04:12:33,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8585 states, 8584 states have (on average 1.0467148182665424) internal successors, (8985), 8584 states have internal predecessors, (8985), 0 states have call successors, (0), 0 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 04:12:33,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8585 states to 8585 states and 8985 transitions. [2024-11-16 04:12:33,756 INFO L78 Accepts]: Start accepts. Automaton has 8585 states and 8985 transitions. Word has length 702 [2024-11-16 04:12:33,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:12:33,757 INFO L471 AbstractCegarLoop]: Abstraction has 8585 states and 8985 transitions. [2024-11-16 04:12:33,758 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 131.66666666666666) internal successors, (395), 3 states have internal predecessors, (395), 0 states have call successors, (0), 0 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 04:12:33,758 INFO L276 IsEmpty]: Start isEmpty. Operand 8585 states and 8985 transitions. [2024-11-16 04:12:33,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 704 [2024-11-16 04:12:33,765 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:12:33,765 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, 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, 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, 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, 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] [2024-11-16 04:12:33,765 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-16 04:12:33,765 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:12:33,766 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:12:33,766 INFO L85 PathProgramCache]: Analyzing trace with hash 1423604123, now seen corresponding path program 1 times [2024-11-16 04:12:33,766 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:12:33,766 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1956897447] [2024-11-16 04:12:33,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:12:33,770 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:12:33,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:12:34,996 INFO L134 CoverageAnalysis]: Checked inductivity of 789 backedges. 93 proven. 450 refuted. 0 times theorem prover too weak. 246 trivial. 0 not checked. [2024-11-16 04:12:34,997 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:12:34,997 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1956897447] [2024-11-16 04:12:34,997 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1956897447] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 04:12:34,997 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2016248248] [2024-11-16 04:12:34,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:12:34,997 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 04:12:34,998 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 04:12:34,999 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 04:12:35,001 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 04:12:35,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:12:35,208 INFO L255 TraceCheckSpWp]: Trace formula consists of 845 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-16 04:12:35,217 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 04:12:35,277 INFO L134 CoverageAnalysis]: Checked inductivity of 789 backedges. 123 proven. 0 refuted. 0 times theorem prover too weak. 666 trivial. 0 not checked. [2024-11-16 04:12:35,278 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 04:12:35,278 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2016248248] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:12:35,278 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 04:12:35,278 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2024-11-16 04:12:35,278 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [582120426] [2024-11-16 04:12:35,279 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:12:35,279 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:12:35,279 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:12:35,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:12:35,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-16 04:12:35,280 INFO L87 Difference]: Start difference. First operand 8585 states and 8985 transitions. Second operand has 3 states, 3 states have (on average 94.66666666666667) internal successors, (284), 3 states have internal predecessors, (284), 0 states have call successors, (0), 0 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 04:12:35,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:12:35,992 INFO L93 Difference]: Finished difference Result 16838 states and 17636 transitions. [2024-11-16 04:12:35,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:12:35,992 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 94.66666666666667) internal successors, (284), 3 states have internal predecessors, (284), 0 states have call successors, (0), 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 703 [2024-11-16 04:12:35,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:12:36,006 INFO L225 Difference]: With dead ends: 16838 [2024-11-16 04:12:36,006 INFO L226 Difference]: Without dead ends: 8585 [2024-11-16 04:12:36,015 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 707 GetRequests, 703 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-16 04:12:36,016 INFO L432 NwaCegarLoop]: 374 mSDtfsCounter, 335 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 776 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 335 SdHoareTripleChecker+Valid, 382 SdHoareTripleChecker+Invalid, 794 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 776 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-16 04:12:36,016 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [335 Valid, 382 Invalid, 794 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 776 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-16 04:12:36,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8585 states. [2024-11-16 04:12:36,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8585 to 8585. [2024-11-16 04:12:36,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8585 states, 8584 states have (on average 1.0406570363466916) internal successors, (8933), 8584 states have internal predecessors, (8933), 0 states have call successors, (0), 0 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 04:12:36,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8585 states to 8585 states and 8933 transitions. [2024-11-16 04:12:36,101 INFO L78 Accepts]: Start accepts. Automaton has 8585 states and 8933 transitions. Word has length 703 [2024-11-16 04:12:36,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:12:36,102 INFO L471 AbstractCegarLoop]: Abstraction has 8585 states and 8933 transitions. [2024-11-16 04:12:36,102 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 94.66666666666667) internal successors, (284), 3 states have internal predecessors, (284), 0 states have call successors, (0), 0 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 04:12:36,102 INFO L276 IsEmpty]: Start isEmpty. Operand 8585 states and 8933 transitions. [2024-11-16 04:12:36,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1165 [2024-11-16 04:12:36,117 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:12:36,118 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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, 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, 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] [2024-11-16 04:12:36,133 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 04:12:36,318 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 04:12:36,319 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:12:36,319 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:12:36,320 INFO L85 PathProgramCache]: Analyzing trace with hash 830927574, now seen corresponding path program 1 times [2024-11-16 04:12:36,320 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:12:36,320 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2091392096] [2024-11-16 04:12:36,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:12:36,320 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:12:36,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:12:37,145 INFO L134 CoverageAnalysis]: Checked inductivity of 2686 backedges. 1851 proven. 0 refuted. 0 times theorem prover too weak. 835 trivial. 0 not checked. [2024-11-16 04:12:37,145 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:12:37,145 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2091392096] [2024-11-16 04:12:37,146 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2091392096] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:12:37,146 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:12:37,146 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 04:12:37,146 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [206734367] [2024-11-16 04:12:37,146 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:12:37,147 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:12:37,147 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:12:37,148 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:12:37,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:12:37,149 INFO L87 Difference]: Start difference. First operand 8585 states and 8933 transitions. Second operand has 3 states, 3 states have (on average 203.0) internal successors, (609), 3 states have internal predecessors, (609), 0 states have call successors, (0), 0 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 04:12:37,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:12:37,939 INFO L93 Difference]: Finished difference Result 17168 states and 17863 transitions. [2024-11-16 04:12:37,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:12:37,940 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 203.0) internal successors, (609), 3 states have internal predecessors, (609), 0 states have call successors, (0), 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 1164 [2024-11-16 04:12:37,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:12:37,954 INFO L225 Difference]: With dead ends: 17168 [2024-11-16 04:12:37,955 INFO L226 Difference]: Without dead ends: 8915 [2024-11-16 04:12:37,964 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 04:12:37,965 INFO L432 NwaCegarLoop]: 425 mSDtfsCounter, 195 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 757 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 195 SdHoareTripleChecker+Valid, 431 SdHoareTripleChecker+Invalid, 806 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 757 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-16 04:12:37,965 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [195 Valid, 431 Invalid, 806 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 757 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-16 04:12:37,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8915 states. [2024-11-16 04:12:38,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8915 to 8585. [2024-11-16 04:12:38,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8585 states, 8584 states have (on average 1.033550792171482) internal successors, (8872), 8584 states have internal predecessors, (8872), 0 states have call successors, (0), 0 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 04:12:38,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8585 states to 8585 states and 8872 transitions. [2024-11-16 04:12:38,083 INFO L78 Accepts]: Start accepts. Automaton has 8585 states and 8872 transitions. Word has length 1164 [2024-11-16 04:12:38,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:12:38,085 INFO L471 AbstractCegarLoop]: Abstraction has 8585 states and 8872 transitions. [2024-11-16 04:12:38,085 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 203.0) internal successors, (609), 3 states have internal predecessors, (609), 0 states have call successors, (0), 0 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 04:12:38,085 INFO L276 IsEmpty]: Start isEmpty. Operand 8585 states and 8872 transitions. [2024-11-16 04:12:38,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1193 [2024-11-16 04:12:38,111 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:12:38,112 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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] [2024-11-16 04:12:38,112 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-16 04:12:38,112 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:12:38,113 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:12:38,113 INFO L85 PathProgramCache]: Analyzing trace with hash 2052567298, now seen corresponding path program 1 times [2024-11-16 04:12:38,113 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:12:38,113 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [273856065] [2024-11-16 04:12:38,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:12:38,114 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:12:38,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:12:39,495 INFO L134 CoverageAnalysis]: Checked inductivity of 2794 backedges. 1560 proven. 0 refuted. 0 times theorem prover too weak. 1234 trivial. 0 not checked. [2024-11-16 04:12:39,495 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:12:39,495 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [273856065] [2024-11-16 04:12:39,496 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [273856065] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:12:39,496 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:12:39,496 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 04:12:39,496 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [909870392] [2024-11-16 04:12:39,496 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:12:39,497 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:12:39,497 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:12:39,498 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:12:39,498 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:12:39,498 INFO L87 Difference]: Start difference. First operand 8585 states and 8872 transitions. Second operand has 3 states, 3 states have (on average 192.33333333333334) internal successors, (577), 3 states have internal predecessors, (577), 0 states have call successors, (0), 0 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 04:12:40,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:12:40,157 INFO L93 Difference]: Finished difference Result 17828 states and 18415 transitions. [2024-11-16 04:12:40,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:12:40,158 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 192.33333333333334) internal successors, (577), 3 states have internal predecessors, (577), 0 states have call successors, (0), 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 1192 [2024-11-16 04:12:40,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:12:40,174 INFO L225 Difference]: With dead ends: 17828 [2024-11-16 04:12:40,174 INFO L226 Difference]: Without dead ends: 9575 [2024-11-16 04:12:40,183 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 04:12:40,184 INFO L432 NwaCegarLoop]: 439 mSDtfsCounter, 224 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 758 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 224 SdHoareTripleChecker+Valid, 447 SdHoareTripleChecker+Invalid, 766 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 758 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-16 04:12:40,184 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [224 Valid, 447 Invalid, 766 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 758 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-16 04:12:40,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9575 states. [2024-11-16 04:12:40,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9575 to 9575. [2024-11-16 04:12:40,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9575 states, 9574 states have (on average 1.0308126175057448) internal successors, (9869), 9574 states have internal predecessors, (9869), 0 states have call successors, (0), 0 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 04:12:40,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9575 states to 9575 states and 9869 transitions. [2024-11-16 04:12:40,280 INFO L78 Accepts]: Start accepts. Automaton has 9575 states and 9869 transitions. Word has length 1192 [2024-11-16 04:12:40,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:12:40,281 INFO L471 AbstractCegarLoop]: Abstraction has 9575 states and 9869 transitions. [2024-11-16 04:12:40,281 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 192.33333333333334) internal successors, (577), 3 states have internal predecessors, (577), 0 states have call successors, (0), 0 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 04:12:40,281 INFO L276 IsEmpty]: Start isEmpty. Operand 9575 states and 9869 transitions. [2024-11-16 04:12:40,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1211 [2024-11-16 04:12:40,298 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:12:40,299 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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, 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, 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, 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] [2024-11-16 04:12:40,299 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-16 04:12:40,299 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:12:40,299 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:12:40,300 INFO L85 PathProgramCache]: Analyzing trace with hash 1647061763, now seen corresponding path program 1 times [2024-11-16 04:12:40,300 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:12:40,300 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1489208313] [2024-11-16 04:12:40,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:12:40,300 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:12:40,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:12:41,149 INFO L134 CoverageAnalysis]: Checked inductivity of 2824 backedges. 216 proven. 0 refuted. 0 times theorem prover too weak. 2608 trivial. 0 not checked. [2024-11-16 04:12:41,149 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:12:41,149 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1489208313] [2024-11-16 04:12:41,149 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1489208313] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:12:41,150 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:12:41,150 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 04:12:41,150 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [392954255] [2024-11-16 04:12:41,150 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:12:41,151 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 04:12:41,151 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:12:41,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 04:12:41,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 04:12:41,152 INFO L87 Difference]: Start difference. First operand 9575 states and 9869 transitions. Second operand has 4 states, 4 states have (on average 71.75) internal successors, (287), 4 states have internal predecessors, (287), 0 states have call successors, (0), 0 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 04:12:42,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:12:42,387 INFO L93 Difference]: Finished difference Result 23782 states and 24535 transitions. [2024-11-16 04:12:42,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 04:12:42,388 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 71.75) internal successors, (287), 4 states have internal predecessors, (287), 0 states have call successors, (0), 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 1210 [2024-11-16 04:12:42,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:12:42,407 INFO L225 Difference]: With dead ends: 23782 [2024-11-16 04:12:42,408 INFO L226 Difference]: Without dead ends: 13865 [2024-11-16 04:12:42,419 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-16 04:12:42,420 INFO L432 NwaCegarLoop]: 42 mSDtfsCounter, 636 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 1550 mSolverCounterSat, 131 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 636 SdHoareTripleChecker+Valid, 61 SdHoareTripleChecker+Invalid, 1681 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 131 IncrementalHoareTripleChecker+Valid, 1550 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-16 04:12:42,420 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [636 Valid, 61 Invalid, 1681 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [131 Valid, 1550 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-16 04:12:42,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13865 states. [2024-11-16 04:12:42,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13865 to 10235. [2024-11-16 04:12:42,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10235 states, 10234 states have (on average 1.0330271643541138) internal successors, (10572), 10234 states have internal predecessors, (10572), 0 states have call successors, (0), 0 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 04:12:42,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10235 states to 10235 states and 10572 transitions. [2024-11-16 04:12:42,531 INFO L78 Accepts]: Start accepts. Automaton has 10235 states and 10572 transitions. Word has length 1210 [2024-11-16 04:12:42,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:12:42,532 INFO L471 AbstractCegarLoop]: Abstraction has 10235 states and 10572 transitions. [2024-11-16 04:12:42,532 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 71.75) internal successors, (287), 4 states have internal predecessors, (287), 0 states have call successors, (0), 0 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 04:12:42,532 INFO L276 IsEmpty]: Start isEmpty. Operand 10235 states and 10572 transitions. [2024-11-16 04:12:42,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1354 [2024-11-16 04:12:42,553 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:12:42,554 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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, 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, 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, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:12:42,554 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-16 04:12:42,554 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:12:42,554 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:12:42,555 INFO L85 PathProgramCache]: Analyzing trace with hash -1894223185, now seen corresponding path program 1 times [2024-11-16 04:12:42,555 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:12:42,555 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2084072246] [2024-11-16 04:12:42,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:12:42,555 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:12:42,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:12:43,319 INFO L134 CoverageAnalysis]: Checked inductivity of 3718 backedges. 247 proven. 0 refuted. 0 times theorem prover too weak. 3471 trivial. 0 not checked. [2024-11-16 04:12:43,320 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:12:43,320 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2084072246] [2024-11-16 04:12:43,320 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2084072246] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:12:43,320 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:12:43,320 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 04:12:43,321 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [873917036] [2024-11-16 04:12:43,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:12:43,322 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:12:43,322 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:12:43,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:12:43,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:12:43,323 INFO L87 Difference]: Start difference. First operand 10235 states and 10572 transitions. Second operand has 3 states, 3 states have (on average 96.0) internal successors, (288), 3 states have internal predecessors, (288), 0 states have call successors, (0), 0 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 04:12:43,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:12:43,753 INFO L93 Difference]: Finished difference Result 10244 states and 10580 transitions. [2024-11-16 04:12:43,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:12:43,754 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 96.0) internal successors, (288), 3 states have internal predecessors, (288), 0 states have call successors, (0), 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 1353 [2024-11-16 04:12:43,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:12:43,764 INFO L225 Difference]: With dead ends: 10244 [2024-11-16 04:12:43,764 INFO L226 Difference]: Without dead ends: 9905 [2024-11-16 04:12:43,766 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 04:12:43,767 INFO L432 NwaCegarLoop]: 434 mSDtfsCounter, 0 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 422 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 442 SdHoareTripleChecker+Invalid, 422 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 422 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-16 04:12:43,767 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 442 Invalid, 422 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 422 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-16 04:12:43,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9905 states. [2024-11-16 04:12:43,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9905 to 9905. [2024-11-16 04:12:43,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9905 states, 9904 states have (on average 1.0339256865912763) internal successors, (10240), 9904 states have internal predecessors, (10240), 0 states have call successors, (0), 0 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 04:12:43,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9905 states to 9905 states and 10240 transitions. [2024-11-16 04:12:43,863 INFO L78 Accepts]: Start accepts. Automaton has 9905 states and 10240 transitions. Word has length 1353 [2024-11-16 04:12:43,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:12:43,865 INFO L471 AbstractCegarLoop]: Abstraction has 9905 states and 10240 transitions. [2024-11-16 04:12:43,865 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 96.0) internal successors, (288), 3 states have internal predecessors, (288), 0 states have call successors, (0), 0 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 04:12:43,865 INFO L276 IsEmpty]: Start isEmpty. Operand 9905 states and 10240 transitions. [2024-11-16 04:12:43,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1709 [2024-11-16 04:12:43,896 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:12:43,897 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 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, 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, 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, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:12:43,897 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-16 04:12:43,897 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:12:43,898 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:12:43,898 INFO L85 PathProgramCache]: Analyzing trace with hash 817475112, now seen corresponding path program 1 times [2024-11-16 04:12:43,898 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:12:43,898 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [75779108] [2024-11-16 04:12:43,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:12:43,899 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:12:44,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:12:45,684 INFO L134 CoverageAnalysis]: Checked inductivity of 5197 backedges. 711 proven. 567 refuted. 0 times theorem prover too weak. 3919 trivial. 0 not checked. [2024-11-16 04:12:45,684 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:12:45,684 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [75779108] [2024-11-16 04:12:45,684 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [75779108] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 04:12:45,684 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [887329499] [2024-11-16 04:12:45,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:12:45,685 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 04:12:45,685 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 04:12:45,687 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 04:12:45,688 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 04:12:46,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:12:46,162 INFO L255 TraceCheckSpWp]: Trace formula consists of 1970 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-16 04:12:46,180 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 04:12:46,309 INFO L134 CoverageAnalysis]: Checked inductivity of 5197 backedges. 278 proven. 0 refuted. 0 times theorem prover too weak. 4919 trivial. 0 not checked. [2024-11-16 04:12:46,309 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 04:12:46,310 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [887329499] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:12:46,310 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 04:12:46,310 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2024-11-16 04:12:46,310 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1950518266] [2024-11-16 04:12:46,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:12:46,313 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:12:46,313 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:12:46,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:12:46,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 04:12:46,314 INFO L87 Difference]: Start difference. First operand 9905 states and 10240 transitions. Second operand has 3 states, 3 states have (on average 124.0) internal successors, (372), 3 states have internal predecessors, (372), 0 states have call successors, (0), 0 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 04:12:46,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:12:46,947 INFO L93 Difference]: Finished difference Result 19475 states and 20144 transitions. [2024-11-16 04:12:46,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:12:46,948 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 124.0) internal successors, (372), 3 states have internal predecessors, (372), 0 states have call successors, (0), 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 1708 [2024-11-16 04:12:46,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:12:46,950 INFO L225 Difference]: With dead ends: 19475 [2024-11-16 04:12:46,950 INFO L226 Difference]: Without dead ends: 0 [2024-11-16 04:12:46,959 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1713 GetRequests, 1710 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 04:12:46,960 INFO L432 NwaCegarLoop]: 24 mSDtfsCounter, 340 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 748 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 340 SdHoareTripleChecker+Valid, 29 SdHoareTripleChecker+Invalid, 800 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 748 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-16 04:12:46,960 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [340 Valid, 29 Invalid, 800 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 748 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-16 04:12:46,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-16 04:12:46,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-16 04:12:46,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 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 04:12:46,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-16 04:12:46,964 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 1708 [2024-11-16 04:12:46,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:12:46,964 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-16 04:12:46,964 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 124.0) internal successors, (372), 3 states have internal predecessors, (372), 0 states have call successors, (0), 0 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 04:12:46,964 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-16 04:12:46,964 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-16 04:12:46,967 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-16 04:12:46,987 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 04:12:47,169 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 04:12:47,173 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:12:47,176 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-16 04:12:47,640 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-16 04:12:47,652 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 04:12:47 BoogieIcfgContainer [2024-11-16 04:12:47,652 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-16 04:12:47,652 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-16 04:12:47,653 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-16 04:12:47,653 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-16 04:12:47,653 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 04:12:17" (3/4) ... [2024-11-16 04:12:47,655 INFO L143 WitnessPrinter]: Generating witness for correct program [2024-11-16 04:12:47,681 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2024-11-16 04:12:47,684 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-16 04:12:47,685 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-16 04:12:47,687 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-16 04:12:47,870 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-16 04:12:47,871 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-16 04:12:47,871 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-16 04:12:47,872 INFO L158 Benchmark]: Toolchain (without parser) took 33923.28ms. Allocated memory was 155.2MB in the beginning and 1.2GB in the end (delta: 1.0GB). Free memory was 93.9MB in the beginning and 815.3MB in the end (delta: -721.4MB). Peak memory consumption was 303.5MB. Max. memory is 16.1GB. [2024-11-16 04:12:47,872 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 155.2MB. Free memory is still 116.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-16 04:12:47,872 INFO L158 Benchmark]: CACSL2BoogieTranslator took 974.65ms. Allocated memory was 155.2MB in the beginning and 222.3MB in the end (delta: 67.1MB). Free memory was 93.9MB in the beginning and 158.7MB in the end (delta: -64.8MB). Peak memory consumption was 46.7MB. Max. memory is 16.1GB. [2024-11-16 04:12:47,873 INFO L158 Benchmark]: Boogie Procedure Inliner took 187.08ms. Allocated memory is still 222.3MB. Free memory was 158.7MB in the beginning and 134.6MB in the end (delta: 24.1MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-16 04:12:47,873 INFO L158 Benchmark]: Boogie Preprocessor took 178.85ms. Allocated memory is still 222.3MB. Free memory was 134.6MB in the beginning and 101.0MB in the end (delta: 33.6MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2024-11-16 04:12:47,873 INFO L158 Benchmark]: IcfgBuilder took 2266.45ms. Allocated memory is still 222.3MB. Free memory was 101.0MB in the beginning and 126.6MB in the end (delta: -25.5MB). Peak memory consumption was 78.3MB. Max. memory is 16.1GB. [2024-11-16 04:12:47,874 INFO L158 Benchmark]: TraceAbstraction took 30090.35ms. Allocated memory was 222.3MB in the beginning and 1.2GB in the end (delta: 956.3MB). Free memory was 125.5MB in the beginning and 841.5MB in the end (delta: -716.0MB). Peak memory consumption was 239.3MB. Max. memory is 16.1GB. [2024-11-16 04:12:47,874 INFO L158 Benchmark]: Witness Printer took 218.55ms. Allocated memory is still 1.2GB. Free memory was 841.5MB in the beginning and 815.3MB in the end (delta: 26.2MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2024-11-16 04:12:47,875 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 155.2MB. Free memory is still 116.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 974.65ms. Allocated memory was 155.2MB in the beginning and 222.3MB in the end (delta: 67.1MB). Free memory was 93.9MB in the beginning and 158.7MB in the end (delta: -64.8MB). Peak memory consumption was 46.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 187.08ms. Allocated memory is still 222.3MB. Free memory was 158.7MB in the beginning and 134.6MB in the end (delta: 24.1MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 178.85ms. Allocated memory is still 222.3MB. Free memory was 134.6MB in the beginning and 101.0MB in the end (delta: 33.6MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * IcfgBuilder took 2266.45ms. Allocated memory is still 222.3MB. Free memory was 101.0MB in the beginning and 126.6MB in the end (delta: -25.5MB). Peak memory consumption was 78.3MB. Max. memory is 16.1GB. * TraceAbstraction took 30090.35ms. Allocated memory was 222.3MB in the beginning and 1.2GB in the end (delta: 956.3MB). Free memory was 125.5MB in the beginning and 841.5MB in the end (delta: -716.0MB). Peak memory consumption was 239.3MB. Max. memory is 16.1GB. * Witness Printer took 218.55ms. Allocated memory is still 1.2GB. Free memory was 841.5MB in the beginning and 815.3MB in the end (delta: 26.2MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 113]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 399 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 29.5s, OverallIterations: 15, TraceHistogramMax: 10, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.2s, AutomataDifference: 15.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 4880 SdHoareTripleChecker+Valid, 14.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 4880 mSDsluCounter, 3870 SdHoareTripleChecker+Invalid, 11.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 120 mSDsCounter, 2484 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 12898 IncrementalHoareTripleChecker+Invalid, 15382 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2484 mSolverCounterUnsat, 3750 mSDtfsCounter, 12898 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2834 GetRequests, 2808 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=10235occurred in iteration=13, InterpolantAutomatonStates: 48, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.2s AutomataMinimizationTime, 15 MinimizatonAttempts, 5940 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.4s SsaConstructionTime, 1.1s SatisfiabilityAnalysisTime, 9.2s InterpolantComputationTime, 12800 NumberOfCodeBlocks, 12800 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 12782 ConstructedInterpolants, 0 QuantifiedInterpolants, 22673 SizeOfPredicates, 0 NumberOfNonLiveVariables, 3285 ConjunctsInSsa, 6 ConjunctsInUnsatCore, 18 InterpolantComputations, 15 PerfectInterpolantSequences, 25178/26233 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 1783]: Location Invariant Derived location invariant: null RESULT: Ultimate proved your program to be correct! [2024-11-16 04:12:47,903 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE