./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem15_label31.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/Problem15_label31.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 c9e1a0326cfbd74069fe8a9392496d7bba5eb0c64820bba9b08ddeb981e8ffba --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 04:09:15,639 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 04:09:15,701 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-16 04:09:15,707 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 04:09:15,708 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 04:09:15,733 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 04:09:15,735 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 04:09:15,735 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 04:09:15,736 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-16 04:09:15,740 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-16 04:09:15,740 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 04:09:15,740 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 04:09:15,741 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 04:09:15,741 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 04:09:15,741 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 04:09:15,741 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 04:09:15,743 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 04:09:15,743 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-16 04:09:15,744 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 04:09:15,744 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-16 04:09:15,744 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 04:09:15,744 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 04:09:15,745 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 04:09:15,745 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 04:09:15,745 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 04:09:15,745 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-16 04:09:15,745 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 04:09:15,746 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 04:09:15,746 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 04:09:15,746 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 04:09:15,746 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-16 04:09:15,746 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 04:09:15,746 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 04:09:15,747 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 04:09:15,747 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 04:09:15,747 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 04:09:15,748 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 04:09:15,748 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 04:09:15,748 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 04:09:15,749 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 04:09:15,749 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 04:09:15,749 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 04:09:15,749 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c9e1a0326cfbd74069fe8a9392496d7bba5eb0c64820bba9b08ddeb981e8ffba [2024-11-16 04:09:15,960 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 04:09:15,976 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 04:09:15,978 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 04:09:15,981 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 04:09:15,981 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 04:09:15,982 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem15_label31.c [2024-11-16 04:09:17,375 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 04:09:17,662 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 04:09:17,663 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem15_label31.c [2024-11-16 04:09:17,680 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/832f57c8d/e9436917d5144fb5ac6ea45aeb82812e/FLAG7f3b52b98 [2024-11-16 04:09:17,693 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/832f57c8d/e9436917d5144fb5ac6ea45aeb82812e [2024-11-16 04:09:17,695 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 04:09:17,697 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 04:09:17,700 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 04:09:17,700 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 04:09:17,704 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 04:09:17,705 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 04:09:17" (1/1) ... [2024-11-16 04:09:17,705 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6e4c1a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:09:17, skipping insertion in model container [2024-11-16 04:09:17,706 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 04:09:17" (1/1) ... [2024-11-16 04:09:17,762 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 04:09:18,016 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/Problem15_label31.c[7892,7905] [2024-11-16 04:09:18,282 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 04:09:18,290 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 04:09:18,323 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/Problem15_label31.c[7892,7905] [2024-11-16 04:09:18,434 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 04:09:18,451 INFO L204 MainTranslator]: Completed translation [2024-11-16 04:09:18,451 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:09:18 WrapperNode [2024-11-16 04:09:18,452 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 04:09:18,452 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 04:09:18,453 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 04:09:18,453 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 04:09:18,458 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:09:18" (1/1) ... [2024-11-16 04:09:18,493 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:09:18" (1/1) ... [2024-11-16 04:09:18,735 INFO L138 Inliner]: procedures = 15, calls = 9, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 1759 [2024-11-16 04:09:18,736 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 04:09:18,737 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 04:09:18,737 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 04:09:18,737 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 04:09:18,746 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:09:18" (1/1) ... [2024-11-16 04:09:18,746 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:09:18" (1/1) ... [2024-11-16 04:09:18,761 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:09:18" (1/1) ... [2024-11-16 04:09:18,838 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 04:09:18,838 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:09:18" (1/1) ... [2024-11-16 04:09:18,838 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:09:18" (1/1) ... [2024-11-16 04:09:18,893 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:09:18" (1/1) ... [2024-11-16 04:09:18,909 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:09:18" (1/1) ... [2024-11-16 04:09:18,928 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:09:18" (1/1) ... [2024-11-16 04:09:18,939 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:09:18" (1/1) ... [2024-11-16 04:09:18,955 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 04:09:18,957 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 04:09:18,957 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 04:09:18,957 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 04:09:18,957 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:09:18" (1/1) ... [2024-11-16 04:09:18,962 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 04:09:18,972 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 04:09:18,988 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 04:09:19,000 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 04:09:19,085 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 04:09:19,085 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-16 04:09:19,085 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 04:09:19,085 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 04:09:19,141 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 04:09:19,143 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 04:09:21,210 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L1665: havoc calculate_output_#t~ret7#1; [2024-11-16 04:09:21,302 INFO L? ?]: Removed 246 outVars from TransFormulas that were not future-live. [2024-11-16 04:09:21,304 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 04:09:21,331 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 04:09:21,331 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 04:09:21,331 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 04:09:21 BoogieIcfgContainer [2024-11-16 04:09:21,331 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 04:09:21,336 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 04:09:21,336 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 04:09:21,339 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 04:09:21,339 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 04:09:17" (1/3) ... [2024-11-16 04:09:21,339 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@314dfb1f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 04:09:21, skipping insertion in model container [2024-11-16 04:09:21,340 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:09:18" (2/3) ... [2024-11-16 04:09:21,340 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@314dfb1f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 04:09:21, skipping insertion in model container [2024-11-16 04:09:21,340 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 04:09:21" (3/3) ... [2024-11-16 04:09:21,341 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem15_label31.c [2024-11-16 04:09:21,355 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 04:09:21,355 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-16 04:09:21,425 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 04:09:21,432 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;@4957ae4d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 04:09:21,432 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-16 04:09:21,438 INFO L276 IsEmpty]: Start isEmpty. Operand has 427 states, 425 states have (on average 1.771764705882353) internal successors, (753), 426 states have internal predecessors, (753), 0 states have call successors, (0), 0 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 04:09:21,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-16 04:09:21,448 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:09:21,449 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:09:21,449 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:09:21,454 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:09:21,454 INFO L85 PathProgramCache]: Analyzing trace with hash 1565247394, now seen corresponding path program 1 times [2024-11-16 04:09:21,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:09:21,465 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1792998153] [2024-11-16 04:09:21,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:09:21,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:09:21,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:09:21,781 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 04:09:21,782 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:09:21,782 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1792998153] [2024-11-16 04:09:21,783 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1792998153] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:09:21,783 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:09:21,783 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 04:09:21,784 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1066429222] [2024-11-16 04:09:21,785 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:09:21,789 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:09:21,789 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:09:21,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:09:21,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:09:21,813 INFO L87 Difference]: Start difference. First operand has 427 states, 425 states have (on average 1.771764705882353) internal successors, (753), 426 states have internal predecessors, (753), 0 states have call successors, (0), 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 22.333333333333332) internal successors, (67), 2 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:09:23,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:09:23,634 INFO L93 Difference]: Finished difference Result 1161 states and 2112 transitions. [2024-11-16 04:09:23,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:09:23,637 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 2 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 67 [2024-11-16 04:09:23,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:09:23,649 INFO L225 Difference]: With dead ends: 1161 [2024-11-16 04:09:23,649 INFO L226 Difference]: Without dead ends: 670 [2024-11-16 04:09:23,653 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 04:09:23,655 INFO L432 NwaCegarLoop]: 330 mSDtfsCounter, 279 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 899 mSolverCounterSat, 345 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 279 SdHoareTripleChecker+Valid, 374 SdHoareTripleChecker+Invalid, 1244 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 345 IncrementalHoareTripleChecker+Valid, 899 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-16 04:09:23,656 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [279 Valid, 374 Invalid, 1244 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [345 Valid, 899 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-16 04:09:23,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 670 states. [2024-11-16 04:09:23,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 670 to 668. [2024-11-16 04:09:23,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 668 states, 667 states have (on average 1.4767616191904047) internal successors, (985), 667 states have internal predecessors, (985), 0 states have call successors, (0), 0 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 04:09:23,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 668 states to 668 states and 985 transitions. [2024-11-16 04:09:23,711 INFO L78 Accepts]: Start accepts. Automaton has 668 states and 985 transitions. Word has length 67 [2024-11-16 04:09:23,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:09:23,711 INFO L471 AbstractCegarLoop]: Abstraction has 668 states and 985 transitions. [2024-11-16 04:09:23,711 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 2 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:09:23,712 INFO L276 IsEmpty]: Start isEmpty. Operand 668 states and 985 transitions. [2024-11-16 04:09:23,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-11-16 04:09:23,715 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:09:23,715 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-16 04:09:23,715 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 04:09:23,716 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:09:23,716 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:09:23,716 INFO L85 PathProgramCache]: Analyzing trace with hash -1065909510, now seen corresponding path program 1 times [2024-11-16 04:09:23,716 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:09:23,717 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [27052040] [2024-11-16 04:09:23,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:09:23,717 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:09:23,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:09:23,950 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 63 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 04:09:23,950 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:09:23,950 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [27052040] [2024-11-16 04:09:23,952 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [27052040] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:09:23,952 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:09:23,952 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 04:09:23,952 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [10827928] [2024-11-16 04:09:23,952 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:09:23,953 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:09:23,953 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:09:23,954 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:09:23,954 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:09:23,955 INFO L87 Difference]: Start difference. First operand 668 states and 985 transitions. Second operand has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 2 states have internal predecessors, (143), 0 states have call successors, (0), 0 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 04:09:25,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:09:25,419 INFO L93 Difference]: Finished difference Result 1961 states and 2901 transitions. [2024-11-16 04:09:25,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:09:25,424 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 2 states have internal predecessors, (143), 0 states have call successors, (0), 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 143 [2024-11-16 04:09:25,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:09:25,428 INFO L225 Difference]: With dead ends: 1961 [2024-11-16 04:09:25,428 INFO L226 Difference]: Without dead ends: 1295 [2024-11-16 04:09:25,430 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 04:09:25,431 INFO L432 NwaCegarLoop]: 288 mSDtfsCounter, 258 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 1039 mSolverCounterSat, 210 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 258 SdHoareTripleChecker+Valid, 326 SdHoareTripleChecker+Invalid, 1249 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 210 IncrementalHoareTripleChecker+Valid, 1039 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-16 04:09:25,431 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [258 Valid, 326 Invalid, 1249 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [210 Valid, 1039 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-16 04:09:25,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1295 states. [2024-11-16 04:09:25,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1295 to 1287. [2024-11-16 04:09:25,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1287 states, 1286 states have (on average 1.3973561430793158) internal successors, (1797), 1286 states have internal predecessors, (1797), 0 states have call successors, (0), 0 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 04:09:25,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1287 states to 1287 states and 1797 transitions. [2024-11-16 04:09:25,467 INFO L78 Accepts]: Start accepts. Automaton has 1287 states and 1797 transitions. Word has length 143 [2024-11-16 04:09:25,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:09:25,468 INFO L471 AbstractCegarLoop]: Abstraction has 1287 states and 1797 transitions. [2024-11-16 04:09:25,468 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 2 states have internal predecessors, (143), 0 states have call successors, (0), 0 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 04:09:25,469 INFO L276 IsEmpty]: Start isEmpty. Operand 1287 states and 1797 transitions. [2024-11-16 04:09:25,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-11-16 04:09:25,471 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:09:25,471 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-16 04:09:25,471 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-16 04:09:25,471 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:09:25,472 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:09:25,472 INFO L85 PathProgramCache]: Analyzing trace with hash -1843922108, now seen corresponding path program 1 times [2024-11-16 04:09:25,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:09:25,472 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1107774215] [2024-11-16 04:09:25,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:09:25,473 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:09:25,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:09:25,599 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 63 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 04:09:25,599 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:09:25,599 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1107774215] [2024-11-16 04:09:25,599 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1107774215] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:09:25,600 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:09:25,600 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 04:09:25,600 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2023082017] [2024-11-16 04:09:25,600 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:09:25,600 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:09:25,600 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:09:25,601 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:09:25,601 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:09:25,601 INFO L87 Difference]: Start difference. First operand 1287 states and 1797 transitions. Second operand has 3 states, 3 states have (on average 49.0) internal successors, (147), 2 states have internal predecessors, (147), 0 states have call successors, (0), 0 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 04:09:26,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:09:26,843 INFO L93 Difference]: Finished difference Result 3781 states and 5279 transitions. [2024-11-16 04:09:26,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:09:26,843 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 49.0) internal successors, (147), 2 states have internal predecessors, (147), 0 states have call successors, (0), 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 147 [2024-11-16 04:09:26,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:09:26,852 INFO L225 Difference]: With dead ends: 3781 [2024-11-16 04:09:26,853 INFO L226 Difference]: Without dead ends: 2496 [2024-11-16 04:09:26,855 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 04:09:26,857 INFO L432 NwaCegarLoop]: 273 mSDtfsCounter, 272 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 791 mSolverCounterSat, 298 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 272 SdHoareTripleChecker+Valid, 342 SdHoareTripleChecker+Invalid, 1089 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 298 IncrementalHoareTripleChecker+Valid, 791 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-16 04:09:26,858 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [272 Valid, 342 Invalid, 1089 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [298 Valid, 791 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-16 04:09:26,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2496 states. [2024-11-16 04:09:26,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2496 to 2190. [2024-11-16 04:09:26,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2190 states, 2189 states have (on average 1.2814070351758795) internal successors, (2805), 2189 states have internal predecessors, (2805), 0 states have call successors, (0), 0 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 04:09:26,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2190 states to 2190 states and 2805 transitions. [2024-11-16 04:09:26,893 INFO L78 Accepts]: Start accepts. Automaton has 2190 states and 2805 transitions. Word has length 147 [2024-11-16 04:09:26,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:09:26,894 INFO L471 AbstractCegarLoop]: Abstraction has 2190 states and 2805 transitions. [2024-11-16 04:09:26,894 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 49.0) internal successors, (147), 2 states have internal predecessors, (147), 0 states have call successors, (0), 0 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 04:09:26,894 INFO L276 IsEmpty]: Start isEmpty. Operand 2190 states and 2805 transitions. [2024-11-16 04:09:26,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 265 [2024-11-16 04:09:26,896 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:09:26,900 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-16 04:09:26,900 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-16 04:09:26,900 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:09:26,901 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:09:26,901 INFO L85 PathProgramCache]: Analyzing trace with hash -1782443283, now seen corresponding path program 1 times [2024-11-16 04:09:26,901 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:09:26,901 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [982154981] [2024-11-16 04:09:26,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:09:26,901 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:09:26,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:09:27,493 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 63 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 04:09:27,494 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:09:27,494 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [982154981] [2024-11-16 04:09:27,494 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [982154981] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:09:27,494 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:09:27,494 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 04:09:27,495 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [30666490] [2024-11-16 04:09:27,495 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:09:27,495 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:09:27,495 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:09:27,496 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:09:27,496 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:09:27,496 INFO L87 Difference]: Start difference. First operand 2190 states and 2805 transitions. Second operand has 3 states, 3 states have (on average 88.0) internal successors, (264), 2 states have internal predecessors, (264), 0 states have call successors, (0), 0 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 04:09:28,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:09:28,559 INFO L93 Difference]: Finished difference Result 4678 states and 5920 transitions. [2024-11-16 04:09:28,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:09:28,559 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 88.0) internal successors, (264), 2 states have internal predecessors, (264), 0 states have call successors, (0), 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 264 [2024-11-16 04:09:28,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:09:28,566 INFO L225 Difference]: With dead ends: 4678 [2024-11-16 04:09:28,566 INFO L226 Difference]: Without dead ends: 2490 [2024-11-16 04:09:28,568 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 04:09:28,569 INFO L432 NwaCegarLoop]: 326 mSDtfsCounter, 105 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 888 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 363 SdHoareTripleChecker+Invalid, 893 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 888 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-16 04:09:28,569 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [105 Valid, 363 Invalid, 893 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 888 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-16 04:09:28,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2490 states. [2024-11-16 04:09:28,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2490 to 2490. [2024-11-16 04:09:28,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2490 states, 2489 states have (on average 1.249899558055444) internal successors, (3111), 2489 states have internal predecessors, (3111), 0 states have call successors, (0), 0 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 04:09:28,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2490 states to 2490 states and 3111 transitions. [2024-11-16 04:09:28,601 INFO L78 Accepts]: Start accepts. Automaton has 2490 states and 3111 transitions. Word has length 264 [2024-11-16 04:09:28,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:09:28,602 INFO L471 AbstractCegarLoop]: Abstraction has 2490 states and 3111 transitions. [2024-11-16 04:09:28,602 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 88.0) internal successors, (264), 2 states have internal predecessors, (264), 0 states have call successors, (0), 0 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 04:09:28,602 INFO L276 IsEmpty]: Start isEmpty. Operand 2490 states and 3111 transitions. [2024-11-16 04:09:28,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 339 [2024-11-16 04:09:28,604 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:09:28,605 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1] [2024-11-16 04:09:28,605 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-16 04:09:28,605 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:09:28,606 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:09:28,606 INFO L85 PathProgramCache]: Analyzing trace with hash 1466113177, now seen corresponding path program 1 times [2024-11-16 04:09:28,607 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:09:28,607 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [878993768] [2024-11-16 04:09:28,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:09:28,608 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:09:28,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:09:28,861 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 63 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 04:09:28,862 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:09:28,862 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [878993768] [2024-11-16 04:09:28,863 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [878993768] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:09:28,863 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:09:28,864 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 04:09:28,864 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1990612069] [2024-11-16 04:09:28,864 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:09:28,864 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:09:28,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:09:28,865 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:09:28,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:09:28,865 INFO L87 Difference]: Start difference. First operand 2490 states and 3111 transitions. Second operand has 3 states, 3 states have (on average 112.66666666666667) internal successors, (338), 3 states have internal predecessors, (338), 0 states have call successors, (0), 0 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 04:09:30,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:09:30,225 INFO L93 Difference]: Finished difference Result 5893 states and 7606 transitions. [2024-11-16 04:09:30,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:09:30,226 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 112.66666666666667) internal successors, (338), 3 states have internal predecessors, (338), 0 states have call successors, (0), 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 338 [2024-11-16 04:09:30,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:09:30,235 INFO L225 Difference]: With dead ends: 5893 [2024-11-16 04:09:30,235 INFO L226 Difference]: Without dead ends: 3705 [2024-11-16 04:09:30,238 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 04:09:30,238 INFO L432 NwaCegarLoop]: 628 mSDtfsCounter, 255 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 946 mSolverCounterSat, 218 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 255 SdHoareTripleChecker+Valid, 669 SdHoareTripleChecker+Invalid, 1164 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 218 IncrementalHoareTripleChecker+Valid, 946 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-16 04:09:30,239 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [255 Valid, 669 Invalid, 1164 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [218 Valid, 946 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-16 04:09:30,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3705 states. [2024-11-16 04:09:30,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3705 to 3402. [2024-11-16 04:09:30,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3402 states, 3401 states have (on average 1.219053219641282) internal successors, (4146), 3401 states have internal predecessors, (4146), 0 states have call successors, (0), 0 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 04:09:30,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3402 states to 3402 states and 4146 transitions. [2024-11-16 04:09:30,279 INFO L78 Accepts]: Start accepts. Automaton has 3402 states and 4146 transitions. Word has length 338 [2024-11-16 04:09:30,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:09:30,279 INFO L471 AbstractCegarLoop]: Abstraction has 3402 states and 4146 transitions. [2024-11-16 04:09:30,280 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 112.66666666666667) internal successors, (338), 3 states have internal predecessors, (338), 0 states have call successors, (0), 0 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 04:09:30,280 INFO L276 IsEmpty]: Start isEmpty. Operand 3402 states and 4146 transitions. [2024-11-16 04:09:30,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 357 [2024-11-16 04:09:30,283 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:09:30,283 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:09:30,283 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-16 04:09:30,284 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:09:30,284 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:09:30,285 INFO L85 PathProgramCache]: Analyzing trace with hash 1698228872, now seen corresponding path program 1 times [2024-11-16 04:09:30,285 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:09:30,285 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [597018570] [2024-11-16 04:09:30,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:09:30,285 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:09:30,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:09:30,484 INFO L134 CoverageAnalysis]: Checked inductivity of 218 backedges. 127 proven. 0 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2024-11-16 04:09:30,484 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:09:30,485 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [597018570] [2024-11-16 04:09:30,485 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [597018570] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:09:30,485 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:09:30,485 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 04:09:30,485 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1711910110] [2024-11-16 04:09:30,485 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:09:30,486 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:09:30,487 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:09:30,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:09:30,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:09:30,487 INFO L87 Difference]: Start difference. First operand 3402 states and 4146 transitions. Second operand has 3 states, 3 states have (on average 88.66666666666667) internal successors, (266), 3 states have internal predecessors, (266), 0 states have call successors, (0), 0 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 04:09:31,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:09:31,632 INFO L93 Difference]: Finished difference Result 7704 states and 9661 transitions. [2024-11-16 04:09:31,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:09:31,632 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 88.66666666666667) internal successors, (266), 3 states have internal predecessors, (266), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 356 [2024-11-16 04:09:31,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:09:31,649 INFO L225 Difference]: With dead ends: 7704 [2024-11-16 04:09:31,650 INFO L226 Difference]: Without dead ends: 4604 [2024-11-16 04:09:31,653 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 04:09:31,654 INFO L432 NwaCegarLoop]: 583 mSDtfsCounter, 263 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 880 mSolverCounterSat, 242 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 263 SdHoareTripleChecker+Valid, 624 SdHoareTripleChecker+Invalid, 1122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 242 IncrementalHoareTripleChecker+Valid, 880 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-16 04:09:31,655 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [263 Valid, 624 Invalid, 1122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [242 Valid, 880 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-16 04:09:31,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4604 states. [2024-11-16 04:09:31,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4604 to 4600. [2024-11-16 04:09:31,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4600 states, 4599 states have (on average 1.1874320504457492) internal successors, (5461), 4599 states have internal predecessors, (5461), 0 states have call successors, (0), 0 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 04:09:31,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4600 states to 4600 states and 5461 transitions. [2024-11-16 04:09:31,714 INFO L78 Accepts]: Start accepts. Automaton has 4600 states and 5461 transitions. Word has length 356 [2024-11-16 04:09:31,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:09:31,714 INFO L471 AbstractCegarLoop]: Abstraction has 4600 states and 5461 transitions. [2024-11-16 04:09:31,715 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 88.66666666666667) internal successors, (266), 3 states have internal predecessors, (266), 0 states have call successors, (0), 0 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 04:09:31,715 INFO L276 IsEmpty]: Start isEmpty. Operand 4600 states and 5461 transitions. [2024-11-16 04:09:31,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 522 [2024-11-16 04:09:31,720 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:09:31,720 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-16 04:09:31,720 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-16 04:09:31,721 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:09:31,721 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:09:31,721 INFO L85 PathProgramCache]: Analyzing trace with hash 691557712, now seen corresponding path program 1 times [2024-11-16 04:09:31,721 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:09:31,721 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [780769393] [2024-11-16 04:09:31,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:09:31,721 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:09:31,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:09:32,182 INFO L134 CoverageAnalysis]: Checked inductivity of 538 backedges. 435 proven. 39 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2024-11-16 04:09:32,182 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:09:32,183 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [780769393] [2024-11-16 04:09:32,183 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [780769393] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 04:09:32,183 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [167310383] [2024-11-16 04:09:32,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:09:32,183 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 04:09:32,183 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 04:09:32,188 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 04:09:32,192 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 04:09:32,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:09:32,346 INFO L255 TraceCheckSpWp]: Trace formula consists of 630 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-16 04:09:32,355 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 04:09:32,730 INFO L134 CoverageAnalysis]: Checked inductivity of 538 backedges. 383 proven. 0 refuted. 0 times theorem prover too weak. 155 trivial. 0 not checked. [2024-11-16 04:09:32,730 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 04:09:32,730 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [167310383] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:09:32,730 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 04:09:32,731 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2024-11-16 04:09:32,731 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1175461974] [2024-11-16 04:09:32,731 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:09:32,731 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:09:32,731 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:09:32,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:09:32,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-16 04:09:32,732 INFO L87 Difference]: Start difference. First operand 4600 states and 5461 transitions. Second operand has 3 states, 3 states have (on average 122.66666666666667) internal successors, (368), 3 states have internal predecessors, (368), 0 states have call successors, (0), 0 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 04:09:33,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:09:33,973 INFO L93 Difference]: Finished difference Result 11598 states and 13851 transitions. [2024-11-16 04:09:33,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:09:33,973 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 122.66666666666667) internal successors, (368), 3 states have internal predecessors, (368), 0 states have call successors, (0), 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 521 [2024-11-16 04:09:33,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:09:33,991 INFO L225 Difference]: With dead ends: 11598 [2024-11-16 04:09:33,992 INFO L226 Difference]: Without dead ends: 7300 [2024-11-16 04:09:33,996 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 524 GetRequests, 520 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-16 04:09:33,997 INFO L432 NwaCegarLoop]: 276 mSDtfsCounter, 148 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 905 mSolverCounterSat, 206 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 320 SdHoareTripleChecker+Invalid, 1111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 206 IncrementalHoareTripleChecker+Valid, 905 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-16 04:09:33,997 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [148 Valid, 320 Invalid, 1111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [206 Valid, 905 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-16 04:09:34,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7300 states. [2024-11-16 04:09:34,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7300 to 6400. [2024-11-16 04:09:34,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6400 states, 6399 states have (on average 1.1637755899359274) internal successors, (7447), 6399 states have internal predecessors, (7447), 0 states have call successors, (0), 0 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 04:09:34,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6400 states to 6400 states and 7447 transitions. [2024-11-16 04:09:34,067 INFO L78 Accepts]: Start accepts. Automaton has 6400 states and 7447 transitions. Word has length 521 [2024-11-16 04:09:34,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:09:34,068 INFO L471 AbstractCegarLoop]: Abstraction has 6400 states and 7447 transitions. [2024-11-16 04:09:34,068 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 122.66666666666667) internal successors, (368), 3 states have internal predecessors, (368), 0 states have call successors, (0), 0 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 04:09:34,068 INFO L276 IsEmpty]: Start isEmpty. Operand 6400 states and 7447 transitions. [2024-11-16 04:09:34,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 545 [2024-11-16 04:09:34,075 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:09:34,075 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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] [2024-11-16 04:09:34,092 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 04:09:34,279 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 04:09:34,280 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:09:34,282 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:09:34,282 INFO L85 PathProgramCache]: Analyzing trace with hash 1383635040, now seen corresponding path program 1 times [2024-11-16 04:09:34,283 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:09:34,283 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [804285921] [2024-11-16 04:09:34,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:09:34,283 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:09:34,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:09:34,510 INFO L134 CoverageAnalysis]: Checked inductivity of 493 backedges. 191 proven. 0 refuted. 0 times theorem prover too weak. 302 trivial. 0 not checked. [2024-11-16 04:09:34,511 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:09:34,511 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [804285921] [2024-11-16 04:09:34,511 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [804285921] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:09:34,511 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:09:34,511 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 04:09:34,511 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1891599916] [2024-11-16 04:09:34,511 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:09:34,511 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:09:34,512 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:09:34,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:09:34,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:09:34,512 INFO L87 Difference]: Start difference. First operand 6400 states and 7447 transitions. Second operand has 3 states, 3 states have (on average 113.66666666666667) internal successors, (341), 3 states have internal predecessors, (341), 0 states have call successors, (0), 0 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 04:09:35,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:09:35,772 INFO L93 Difference]: Finished difference Result 15797 states and 18488 transitions. [2024-11-16 04:09:35,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:09:35,773 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 113.66666666666667) internal successors, (341), 3 states have internal predecessors, (341), 0 states have call successors, (0), 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 544 [2024-11-16 04:09:35,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:09:35,805 INFO L225 Difference]: With dead ends: 15797 [2024-11-16 04:09:35,805 INFO L226 Difference]: Without dead ends: 9699 [2024-11-16 04:09:35,815 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 04:09:35,815 INFO L432 NwaCegarLoop]: 229 mSDtfsCounter, 275 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 954 mSolverCounterSat, 198 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 275 SdHoareTripleChecker+Valid, 267 SdHoareTripleChecker+Invalid, 1152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 198 IncrementalHoareTripleChecker+Valid, 954 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-16 04:09:35,816 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [275 Valid, 267 Invalid, 1152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [198 Valid, 954 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-16 04:09:35,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9699 states. [2024-11-16 04:09:35,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9699 to 7898. [2024-11-16 04:09:35,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7898 states, 7897 states have (on average 1.1610738255033557) internal successors, (9169), 7897 states have internal predecessors, (9169), 0 states have call successors, (0), 0 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 04:09:35,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7898 states to 7898 states and 9169 transitions. [2024-11-16 04:09:35,909 INFO L78 Accepts]: Start accepts. Automaton has 7898 states and 9169 transitions. Word has length 544 [2024-11-16 04:09:35,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:09:35,910 INFO L471 AbstractCegarLoop]: Abstraction has 7898 states and 9169 transitions. [2024-11-16 04:09:35,910 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 113.66666666666667) internal successors, (341), 3 states have internal predecessors, (341), 0 states have call successors, (0), 0 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 04:09:35,911 INFO L276 IsEmpty]: Start isEmpty. Operand 7898 states and 9169 transitions. [2024-11-16 04:09:35,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 560 [2024-11-16 04:09:35,914 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:09:35,914 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:09:35,914 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-16 04:09:35,915 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:09:35,915 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:09:35,915 INFO L85 PathProgramCache]: Analyzing trace with hash 199959030, now seen corresponding path program 1 times [2024-11-16 04:09:35,915 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:09:35,915 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [356301868] [2024-11-16 04:09:35,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:09:35,915 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:09:35,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:09:36,309 INFO L134 CoverageAnalysis]: Checked inductivity of 797 backedges. 494 proven. 0 refuted. 0 times theorem prover too weak. 303 trivial. 0 not checked. [2024-11-16 04:09:36,313 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:09:36,313 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [356301868] [2024-11-16 04:09:36,313 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [356301868] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:09:36,313 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:09:36,313 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 04:09:36,314 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1524938180] [2024-11-16 04:09:36,314 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:09:36,314 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:09:36,314 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:09:36,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:09:36,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:09:36,315 INFO L87 Difference]: Start difference. First operand 7898 states and 9169 transitions. Second operand has 3 states, 3 states have (on average 116.33333333333333) internal successors, (349), 3 states have internal predecessors, (349), 0 states have call successors, (0), 0 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 04:09:37,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:09:37,757 INFO L93 Difference]: Finished difference Result 19108 states and 22408 transitions. [2024-11-16 04:09:37,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:09:37,758 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 116.33333333333333) internal successors, (349), 3 states have internal predecessors, (349), 0 states have call successors, (0), 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 559 [2024-11-16 04:09:37,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:09:37,772 INFO L225 Difference]: With dead ends: 19108 [2024-11-16 04:09:37,772 INFO L226 Difference]: Without dead ends: 11512 [2024-11-16 04:09:37,778 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 04:09:37,779 INFO L432 NwaCegarLoop]: 591 mSDtfsCounter, 246 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 1038 mSolverCounterSat, 170 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 246 SdHoareTripleChecker+Valid, 626 SdHoareTripleChecker+Invalid, 1208 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 170 IncrementalHoareTripleChecker+Valid, 1038 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-16 04:09:37,779 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [246 Valid, 626 Invalid, 1208 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [170 Valid, 1038 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-16 04:09:37,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11512 states. [2024-11-16 04:09:37,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11512 to 11201. [2024-11-16 04:09:37,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11201 states, 11200 states have (on average 1.147857142857143) internal successors, (12856), 11200 states have internal predecessors, (12856), 0 states have call successors, (0), 0 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 04:09:37,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11201 states to 11201 states and 12856 transitions. [2024-11-16 04:09:37,871 INFO L78 Accepts]: Start accepts. Automaton has 11201 states and 12856 transitions. Word has length 559 [2024-11-16 04:09:37,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:09:37,872 INFO L471 AbstractCegarLoop]: Abstraction has 11201 states and 12856 transitions. [2024-11-16 04:09:37,872 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 116.33333333333333) internal successors, (349), 3 states have internal predecessors, (349), 0 states have call successors, (0), 0 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 04:09:37,872 INFO L276 IsEmpty]: Start isEmpty. Operand 11201 states and 12856 transitions. [2024-11-16 04:09:37,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 572 [2024-11-16 04:09:37,877 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:09:37,878 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:09:37,878 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-16 04:09:37,878 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:09:37,878 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:09:37,878 INFO L85 PathProgramCache]: Analyzing trace with hash -1717357005, now seen corresponding path program 1 times [2024-11-16 04:09:37,879 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:09:37,879 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1505335957] [2024-11-16 04:09:37,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:09:37,879 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:09:37,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:09:38,204 INFO L134 CoverageAnalysis]: Checked inductivity of 528 backedges. 191 proven. 0 refuted. 0 times theorem prover too weak. 337 trivial. 0 not checked. [2024-11-16 04:09:38,205 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:09:38,205 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1505335957] [2024-11-16 04:09:38,205 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1505335957] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:09:38,205 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:09:38,205 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 04:09:38,205 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [924319520] [2024-11-16 04:09:38,205 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:09:38,206 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:09:38,206 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:09:38,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:09:38,207 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:09:38,207 INFO L87 Difference]: Start difference. First operand 11201 states and 12856 transitions. Second operand has 3 states, 3 states have (on average 114.33333333333333) internal successors, (343), 3 states have internal predecessors, (343), 0 states have call successors, (0), 0 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 04:09:39,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:09:39,247 INFO L93 Difference]: Finished difference Result 22398 states and 25744 transitions. [2024-11-16 04:09:39,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:09:39,248 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 114.33333333333333) internal successors, (343), 3 states have internal predecessors, (343), 0 states have call successors, (0), 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 571 [2024-11-16 04:09:39,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:09:39,263 INFO L225 Difference]: With dead ends: 22398 [2024-11-16 04:09:39,264 INFO L226 Difference]: Without dead ends: 11499 [2024-11-16 04:09:39,273 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 04:09:39,274 INFO L432 NwaCegarLoop]: 67 mSDtfsCounter, 466 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 845 mSolverCounterSat, 190 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 466 SdHoareTripleChecker+Valid, 73 SdHoareTripleChecker+Invalid, 1035 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 190 IncrementalHoareTripleChecker+Valid, 845 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-16 04:09:39,274 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [466 Valid, 73 Invalid, 1035 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [190 Valid, 845 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-16 04:09:39,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11499 states. [2024-11-16 04:09:39,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11499 to 11199. [2024-11-16 04:09:39,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11199 states, 11198 states have (on average 1.14770494731202) internal successors, (12852), 11198 states have internal predecessors, (12852), 0 states have call successors, (0), 0 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 04:09:39,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11199 states to 11199 states and 12852 transitions. [2024-11-16 04:09:39,369 INFO L78 Accepts]: Start accepts. Automaton has 11199 states and 12852 transitions. Word has length 571 [2024-11-16 04:09:39,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:09:39,369 INFO L471 AbstractCegarLoop]: Abstraction has 11199 states and 12852 transitions. [2024-11-16 04:09:39,369 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 114.33333333333333) internal successors, (343), 3 states have internal predecessors, (343), 0 states have call successors, (0), 0 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 04:09:39,369 INFO L276 IsEmpty]: Start isEmpty. Operand 11199 states and 12852 transitions. [2024-11-16 04:09:39,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 593 [2024-11-16 04:09:39,376 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:09:39,376 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:09:39,376 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-16 04:09:39,376 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:09:39,377 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:09:39,377 INFO L85 PathProgramCache]: Analyzing trace with hash -1880713657, now seen corresponding path program 1 times [2024-11-16 04:09:39,377 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:09:39,377 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [504161770] [2024-11-16 04:09:39,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:09:39,377 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:09:39,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:09:39,707 INFO L134 CoverageAnalysis]: Checked inductivity of 718 backedges. 480 proven. 0 refuted. 0 times theorem prover too weak. 238 trivial. 0 not checked. [2024-11-16 04:09:39,707 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:09:39,708 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [504161770] [2024-11-16 04:09:39,708 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [504161770] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:09:39,708 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:09:39,708 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 04:09:39,708 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2124475446] [2024-11-16 04:09:39,708 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:09:39,709 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:09:39,709 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:09:39,710 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:09:39,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:09:39,710 INFO L87 Difference]: Start difference. First operand 11199 states and 12852 transitions. Second operand has 3 states, 3 states have (on average 140.33333333333334) internal successors, (421), 3 states have internal predecessors, (421), 0 states have call successors, (0), 0 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 04:09:40,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:09:40,716 INFO L93 Difference]: Finished difference Result 23896 states and 27424 transitions. [2024-11-16 04:09:40,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:09:40,717 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 140.33333333333334) internal successors, (421), 3 states have internal predecessors, (421), 0 states have call successors, (0), 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 592 [2024-11-16 04:09:40,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:09:40,738 INFO L225 Difference]: With dead ends: 23896 [2024-11-16 04:09:40,741 INFO L226 Difference]: Without dead ends: 12999 [2024-11-16 04:09:40,758 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 04:09:40,762 INFO L432 NwaCegarLoop]: 263 mSDtfsCounter, 271 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 737 mSolverCounterSat, 243 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 271 SdHoareTripleChecker+Valid, 325 SdHoareTripleChecker+Invalid, 980 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 243 IncrementalHoareTripleChecker+Valid, 737 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-16 04:09:40,763 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [271 Valid, 325 Invalid, 980 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [243 Valid, 737 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-16 04:09:40,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12999 states. [2024-11-16 04:09:40,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12999 to 9396. [2024-11-16 04:09:40,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9396 states, 9395 states have (on average 1.1612559872272485) internal successors, (10910), 9395 states have internal predecessors, (10910), 0 states have call successors, (0), 0 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 04:09:40,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9396 states to 9396 states and 10910 transitions. [2024-11-16 04:09:40,962 INFO L78 Accepts]: Start accepts. Automaton has 9396 states and 10910 transitions. Word has length 592 [2024-11-16 04:09:40,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:09:40,963 INFO L471 AbstractCegarLoop]: Abstraction has 9396 states and 10910 transitions. [2024-11-16 04:09:40,963 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 140.33333333333334) internal successors, (421), 3 states have internal predecessors, (421), 0 states have call successors, (0), 0 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 04:09:40,963 INFO L276 IsEmpty]: Start isEmpty. Operand 9396 states and 10910 transitions. [2024-11-16 04:09:40,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 598 [2024-11-16 04:09:40,976 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:09:40,977 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:09:40,977 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-16 04:09:40,977 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:09:40,977 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:09:40,977 INFO L85 PathProgramCache]: Analyzing trace with hash 1341167559, now seen corresponding path program 1 times [2024-11-16 04:09:40,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:09:40,977 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [998532871] [2024-11-16 04:09:40,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:09:40,978 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:09:41,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:09:41,439 INFO L134 CoverageAnalysis]: Checked inductivity of 556 backedges. 449 proven. 0 refuted. 0 times theorem prover too weak. 107 trivial. 0 not checked. [2024-11-16 04:09:41,440 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:09:41,440 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [998532871] [2024-11-16 04:09:41,440 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [998532871] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:09:41,440 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:09:41,440 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 04:09:41,440 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1850447013] [2024-11-16 04:09:41,441 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:09:41,441 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:09:41,441 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:09:41,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:09:41,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:09:41,442 INFO L87 Difference]: Start difference. First operand 9396 states and 10910 transitions. Second operand has 3 states, 3 states have (on average 163.66666666666666) internal successors, (491), 3 states have internal predecessors, (491), 0 states have call successors, (0), 0 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 04:09:42,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:09:42,814 INFO L93 Difference]: Finished difference Result 23590 states and 27533 transitions. [2024-11-16 04:09:42,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:09:42,815 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 163.66666666666666) internal successors, (491), 3 states have internal predecessors, (491), 0 states have call successors, (0), 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 597 [2024-11-16 04:09:42,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:09:42,844 INFO L225 Difference]: With dead ends: 23590 [2024-11-16 04:09:42,844 INFO L226 Difference]: Without dead ends: 14496 [2024-11-16 04:09:42,865 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 04:09:42,870 INFO L432 NwaCegarLoop]: 176 mSDtfsCounter, 223 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 988 mSolverCounterSat, 191 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 223 SdHoareTripleChecker+Valid, 206 SdHoareTripleChecker+Invalid, 1179 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 191 IncrementalHoareTripleChecker+Valid, 988 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-16 04:09:42,871 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [223 Valid, 206 Invalid, 1179 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [191 Valid, 988 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-16 04:09:42,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14496 states. [2024-11-16 04:09:43,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14496 to 11796. [2024-11-16 04:09:43,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11796 states, 11795 states have (on average 1.1764306909707503) internal successors, (13876), 11795 states have internal predecessors, (13876), 0 states have call successors, (0), 0 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 04:09:43,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11796 states to 11796 states and 13876 transitions. [2024-11-16 04:09:43,147 INFO L78 Accepts]: Start accepts. Automaton has 11796 states and 13876 transitions. Word has length 597 [2024-11-16 04:09:43,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:09:43,147 INFO L471 AbstractCegarLoop]: Abstraction has 11796 states and 13876 transitions. [2024-11-16 04:09:43,147 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 163.66666666666666) internal successors, (491), 3 states have internal predecessors, (491), 0 states have call successors, (0), 0 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 04:09:43,147 INFO L276 IsEmpty]: Start isEmpty. Operand 11796 states and 13876 transitions. [2024-11-16 04:09:43,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 618 [2024-11-16 04:09:43,161 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:09:43,161 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:09:43,161 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-16 04:09:43,162 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:09:43,162 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:09:43,162 INFO L85 PathProgramCache]: Analyzing trace with hash 1785100544, now seen corresponding path program 1 times [2024-11-16 04:09:43,162 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:09:43,162 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1718787621] [2024-11-16 04:09:43,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:09:43,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:09:43,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:09:43,460 INFO L134 CoverageAnalysis]: Checked inductivity of 576 backedges. 191 proven. 0 refuted. 0 times theorem prover too weak. 385 trivial. 0 not checked. [2024-11-16 04:09:43,460 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:09:43,460 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1718787621] [2024-11-16 04:09:43,460 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1718787621] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:09:43,460 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:09:43,460 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 04:09:43,460 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2141093342] [2024-11-16 04:09:43,460 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:09:43,461 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:09:43,461 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:09:43,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:09:43,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:09:43,462 INFO L87 Difference]: Start difference. First operand 11796 states and 13876 transitions. Second operand has 3 states, 3 states have (on average 113.66666666666667) internal successors, (341), 3 states have internal predecessors, (341), 0 states have call successors, (0), 0 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 04:09:44,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:09:44,739 INFO L93 Difference]: Finished difference Result 26289 states and 31454 transitions. [2024-11-16 04:09:44,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:09:44,740 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 113.66666666666667) internal successors, (341), 3 states have internal predecessors, (341), 0 states have call successors, (0), 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 617 [2024-11-16 04:09:44,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:09:44,761 INFO L225 Difference]: With dead ends: 26289 [2024-11-16 04:09:44,761 INFO L226 Difference]: Without dead ends: 14795 [2024-11-16 04:09:44,772 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 04:09:44,773 INFO L432 NwaCegarLoop]: 428 mSDtfsCounter, 349 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 963 mSolverCounterSat, 127 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 349 SdHoareTripleChecker+Valid, 449 SdHoareTripleChecker+Invalid, 1090 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 127 IncrementalHoareTripleChecker+Valid, 963 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-16 04:09:44,773 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [349 Valid, 449 Invalid, 1090 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [127 Valid, 963 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-16 04:09:44,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14795 states. [2024-11-16 04:09:44,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14795 to 14795. [2024-11-16 04:09:44,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14795 states, 14794 states have (on average 1.1712856563471679) internal successors, (17328), 14794 states have internal predecessors, (17328), 0 states have call successors, (0), 0 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 04:09:44,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14795 states to 14795 states and 17328 transitions. [2024-11-16 04:09:44,894 INFO L78 Accepts]: Start accepts. Automaton has 14795 states and 17328 transitions. Word has length 617 [2024-11-16 04:09:44,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:09:44,895 INFO L471 AbstractCegarLoop]: Abstraction has 14795 states and 17328 transitions. [2024-11-16 04:09:44,895 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 113.66666666666667) internal successors, (341), 3 states have internal predecessors, (341), 0 states have call successors, (0), 0 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 04:09:44,895 INFO L276 IsEmpty]: Start isEmpty. Operand 14795 states and 17328 transitions. [2024-11-16 04:09:44,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 636 [2024-11-16 04:09:44,901 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:09:44,902 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:09:44,902 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-16 04:09:44,902 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:09:44,903 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:09:44,903 INFO L85 PathProgramCache]: Analyzing trace with hash -1501994418, now seen corresponding path program 1 times [2024-11-16 04:09:44,903 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:09:44,903 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1558471834] [2024-11-16 04:09:44,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:09:44,903 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:09:44,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:09:45,411 INFO L134 CoverageAnalysis]: Checked inductivity of 1164 backedges. 701 proven. 39 refuted. 0 times theorem prover too weak. 424 trivial. 0 not checked. [2024-11-16 04:09:45,411 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:09:45,412 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1558471834] [2024-11-16 04:09:45,412 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1558471834] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 04:09:45,412 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1834638813] [2024-11-16 04:09:45,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:09:45,412 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 04:09:45,412 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 04:09:45,413 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 04:09:45,421 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 04:09:45,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:09:45,582 INFO L255 TraceCheckSpWp]: Trace formula consists of 793 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-16 04:09:45,589 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 04:09:45,664 INFO L134 CoverageAnalysis]: Checked inductivity of 1164 backedges. 319 proven. 0 refuted. 0 times theorem prover too weak. 845 trivial. 0 not checked. [2024-11-16 04:09:45,664 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 04:09:45,665 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1834638813] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:09:45,665 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 04:09:45,665 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2024-11-16 04:09:45,665 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1827390313] [2024-11-16 04:09:45,665 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:09:45,666 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:09:45,666 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:09:45,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:09:45,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-16 04:09:45,668 INFO L87 Difference]: Start difference. First operand 14795 states and 17328 transitions. Second operand has 3 states, 3 states have (on average 90.33333333333333) internal successors, (271), 3 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:09:47,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:09:47,319 INFO L93 Difference]: Finished difference Result 31688 states and 37319 transitions. [2024-11-16 04:09:47,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:09:47,320 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 90.33333333333333) internal successors, (271), 3 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 635 [2024-11-16 04:09:47,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:09:47,337 INFO L225 Difference]: With dead ends: 31688 [2024-11-16 04:09:47,338 INFO L226 Difference]: Without dead ends: 17195 [2024-11-16 04:09:47,349 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 638 GetRequests, 634 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-16 04:09:47,349 INFO L432 NwaCegarLoop]: 595 mSDtfsCounter, 256 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 896 mSolverCounterSat, 226 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 256 SdHoareTripleChecker+Valid, 635 SdHoareTripleChecker+Invalid, 1122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 226 IncrementalHoareTripleChecker+Valid, 896 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-16 04:09:47,350 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [256 Valid, 635 Invalid, 1122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [226 Valid, 896 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-16 04:09:47,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17195 states. [2024-11-16 04:09:47,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17195 to 16894. [2024-11-16 04:09:47,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16894 states, 16893 states have (on average 1.1309418102172497) internal successors, (19105), 16893 states have internal predecessors, (19105), 0 states have call successors, (0), 0 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 04:09:47,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16894 states to 16894 states and 19105 transitions. [2024-11-16 04:09:47,540 INFO L78 Accepts]: Start accepts. Automaton has 16894 states and 19105 transitions. Word has length 635 [2024-11-16 04:09:47,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:09:47,540 INFO L471 AbstractCegarLoop]: Abstraction has 16894 states and 19105 transitions. [2024-11-16 04:09:47,540 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 90.33333333333333) internal successors, (271), 3 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:09:47,541 INFO L276 IsEmpty]: Start isEmpty. Operand 16894 states and 19105 transitions. [2024-11-16 04:09:47,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 693 [2024-11-16 04:09:47,553 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:09:47,554 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-16 04:09:47,568 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-16 04:09:47,754 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,SelfDestructingSolverStorable13 [2024-11-16 04:09:47,755 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:09:47,756 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:09:47,756 INFO L85 PathProgramCache]: Analyzing trace with hash 1741807147, now seen corresponding path program 1 times [2024-11-16 04:09:47,756 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:09:47,756 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [368966710] [2024-11-16 04:09:47,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:09:47,756 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:09:47,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:09:48,064 INFO L134 CoverageAnalysis]: Checked inductivity of 937 backedges. 600 proven. 0 refuted. 0 times theorem prover too weak. 337 trivial. 0 not checked. [2024-11-16 04:09:48,065 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:09:48,065 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [368966710] [2024-11-16 04:09:48,065 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [368966710] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:09:48,065 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:09:48,065 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 04:09:48,066 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [59923227] [2024-11-16 04:09:48,066 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:09:48,066 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 04:09:48,066 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:09:48,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 04:09:48,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-16 04:09:48,067 INFO L87 Difference]: Start difference. First operand 16894 states and 19105 transitions. Second operand has 4 states, 4 states have (on average 116.0) internal successors, (464), 4 states have internal predecessors, (464), 0 states have call successors, (0), 0 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 04:09:50,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:09:50,092 INFO L93 Difference]: Finished difference Result 42488 states and 47640 transitions. [2024-11-16 04:09:50,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 04:09:50,093 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 116.0) internal successors, (464), 4 states have internal predecessors, (464), 0 states have call successors, (0), 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 692 [2024-11-16 04:09:50,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:09:50,111 INFO L225 Difference]: With dead ends: 42488 [2024-11-16 04:09:50,111 INFO L226 Difference]: Without dead ends: 19596 [2024-11-16 04:09:50,124 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-16 04:09:50,124 INFO L432 NwaCegarLoop]: 413 mSDtfsCounter, 620 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 1580 mSolverCounterSat, 418 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 620 SdHoareTripleChecker+Valid, 460 SdHoareTripleChecker+Invalid, 1998 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 418 IncrementalHoareTripleChecker+Valid, 1580 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-16 04:09:50,124 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [620 Valid, 460 Invalid, 1998 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [418 Valid, 1580 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-16 04:09:50,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19596 states. [2024-11-16 04:09:50,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19596 to 16292. [2024-11-16 04:09:50,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16292 states, 16291 states have (on average 1.0451783193174145) internal successors, (17027), 16291 states have internal predecessors, (17027), 0 states have call successors, (0), 0 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 04:09:50,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16292 states to 16292 states and 17027 transitions. [2024-11-16 04:09:50,271 INFO L78 Accepts]: Start accepts. Automaton has 16292 states and 17027 transitions. Word has length 692 [2024-11-16 04:09:50,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:09:50,272 INFO L471 AbstractCegarLoop]: Abstraction has 16292 states and 17027 transitions. [2024-11-16 04:09:50,272 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 116.0) internal successors, (464), 4 states have internal predecessors, (464), 0 states have call successors, (0), 0 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 04:09:50,272 INFO L276 IsEmpty]: Start isEmpty. Operand 16292 states and 17027 transitions. [2024-11-16 04:09:50,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 718 [2024-11-16 04:09:50,280 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:09:50,280 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:09:50,280 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-16 04:09:50,281 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:09:50,281 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:09:50,281 INFO L85 PathProgramCache]: Analyzing trace with hash 1008658564, now seen corresponding path program 1 times [2024-11-16 04:09:50,281 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:09:50,281 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [897558317] [2024-11-16 04:09:50,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:09:50,282 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:09:50,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:09:51,180 INFO L134 CoverageAnalysis]: Checked inductivity of 897 backedges. 503 proven. 170 refuted. 0 times theorem prover too weak. 224 trivial. 0 not checked. [2024-11-16 04:09:51,181 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:09:51,181 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [897558317] [2024-11-16 04:09:51,181 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [897558317] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 04:09:51,181 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1552678507] [2024-11-16 04:09:51,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:09:51,181 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 04:09:51,181 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 04:09:51,182 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 04:09:51,184 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 04:09:51,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:09:51,372 INFO L255 TraceCheckSpWp]: Trace formula consists of 851 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-16 04:09:51,427 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 04:09:51,829 INFO L134 CoverageAnalysis]: Checked inductivity of 897 backedges. 644 proven. 0 refuted. 0 times theorem prover too weak. 253 trivial. 0 not checked. [2024-11-16 04:09:51,830 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 04:09:51,830 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1552678507] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:09:51,830 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 04:09:51,830 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2024-11-16 04:09:51,830 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [838133557] [2024-11-16 04:09:51,830 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:09:51,831 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:09:51,831 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:09:51,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:09:51,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-16 04:09:51,832 INFO L87 Difference]: Start difference. First operand 16292 states and 17027 transitions. Second operand has 3 states, 3 states have (on average 155.33333333333334) internal successors, (466), 3 states have internal predecessors, (466), 0 states have call successors, (0), 0 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 04:09:52,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:09:52,797 INFO L93 Difference]: Finished difference Result 35000 states and 36638 transitions. [2024-11-16 04:09:52,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:09:52,797 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 155.33333333333334) internal successors, (466), 3 states have internal predecessors, (466), 0 states have call successors, (0), 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 717 [2024-11-16 04:09:52,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:09:52,816 INFO L225 Difference]: With dead ends: 35000 [2024-11-16 04:09:52,816 INFO L226 Difference]: Without dead ends: 19010 [2024-11-16 04:09:52,827 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 721 GetRequests, 717 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 04:09:52,827 INFO L432 NwaCegarLoop]: 125 mSDtfsCounter, 262 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 790 mSolverCounterSat, 144 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 262 SdHoareTripleChecker+Valid, 150 SdHoareTripleChecker+Invalid, 934 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 144 IncrementalHoareTripleChecker+Valid, 790 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-16 04:09:52,827 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [262 Valid, 150 Invalid, 934 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [144 Valid, 790 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-16 04:09:52,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19010 states. [2024-11-16 04:09:52,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19010 to 16293. [2024-11-16 04:09:52,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16293 states, 16292 states have (on average 1.0443162288239627) internal successors, (17014), 16292 states have internal predecessors, (17014), 0 states have call successors, (0), 0 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 04:09:52,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16293 states to 16293 states and 17014 transitions. [2024-11-16 04:09:52,963 INFO L78 Accepts]: Start accepts. Automaton has 16293 states and 17014 transitions. Word has length 717 [2024-11-16 04:09:52,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:09:52,964 INFO L471 AbstractCegarLoop]: Abstraction has 16293 states and 17014 transitions. [2024-11-16 04:09:52,964 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 155.33333333333334) internal successors, (466), 3 states have internal predecessors, (466), 0 states have call successors, (0), 0 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 04:09:52,964 INFO L276 IsEmpty]: Start isEmpty. Operand 16293 states and 17014 transitions. [2024-11-16 04:09:52,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 730 [2024-11-16 04:09:52,971 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:09:52,971 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:09:52,984 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 04:09:53,171 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 04:09:53,172 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:09:53,172 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:09:53,173 INFO L85 PathProgramCache]: Analyzing trace with hash 1611951130, now seen corresponding path program 1 times [2024-11-16 04:09:53,173 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:09:53,173 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1606244415] [2024-11-16 04:09:53,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:09:53,173 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:09:53,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:09:54,195 INFO L134 CoverageAnalysis]: Checked inductivity of 971 backedges. 586 proven. 0 refuted. 0 times theorem prover too weak. 385 trivial. 0 not checked. [2024-11-16 04:09:54,195 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:09:54,195 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1606244415] [2024-11-16 04:09:54,195 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1606244415] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:09:54,196 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:09:54,196 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 04:09:54,196 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1452828195] [2024-11-16 04:09:54,196 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:09:54,196 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 04:09:54,196 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:09:54,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 04:09:54,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 04:09:54,197 INFO L87 Difference]: Start difference. First operand 16293 states and 17014 transitions. Second operand has 4 states, 4 states have (on average 113.25) internal successors, (453), 4 states have internal predecessors, (453), 0 states have call successors, (0), 0 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 04:09:55,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:09:55,285 INFO L93 Difference]: Finished difference Result 32024 states and 33445 transitions. [2024-11-16 04:09:55,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 04:09:55,286 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 113.25) internal successors, (453), 4 states have internal predecessors, (453), 0 states have call successors, (0), 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 729 [2024-11-16 04:09:55,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:09:55,300 INFO L225 Difference]: With dead ends: 32024 [2024-11-16 04:09:55,300 INFO L226 Difference]: Without dead ends: 16033 [2024-11-16 04:09:55,310 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 04:09:55,310 INFO L432 NwaCegarLoop]: 472 mSDtfsCounter, 437 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 1244 mSolverCounterSat, 135 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 437 SdHoareTripleChecker+Valid, 544 SdHoareTripleChecker+Invalid, 1379 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 135 IncrementalHoareTripleChecker+Valid, 1244 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-16 04:09:55,311 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [437 Valid, 544 Invalid, 1379 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [135 Valid, 1244 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-16 04:09:55,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16033 states. [2024-11-16 04:09:55,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16033 to 15692. [2024-11-16 04:09:55,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15692 states, 15691 states have (on average 1.0400229430883947) internal successors, (16319), 15691 states have internal predecessors, (16319), 0 states have call successors, (0), 0 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 04:09:55,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15692 states to 15692 states and 16319 transitions. [2024-11-16 04:09:55,431 INFO L78 Accepts]: Start accepts. Automaton has 15692 states and 16319 transitions. Word has length 729 [2024-11-16 04:09:55,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:09:55,431 INFO L471 AbstractCegarLoop]: Abstraction has 15692 states and 16319 transitions. [2024-11-16 04:09:55,432 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 113.25) internal successors, (453), 4 states have internal predecessors, (453), 0 states have call successors, (0), 0 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 04:09:55,432 INFO L276 IsEmpty]: Start isEmpty. Operand 15692 states and 16319 transitions. [2024-11-16 04:09:55,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 763 [2024-11-16 04:09:55,440 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:09:55,440 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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, 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] [2024-11-16 04:09:55,440 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-16 04:09:55,440 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:09:55,440 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:09:55,441 INFO L85 PathProgramCache]: Analyzing trace with hash 532064940, now seen corresponding path program 1 times [2024-11-16 04:09:55,441 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:09:55,441 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [741893146] [2024-11-16 04:09:55,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:09:55,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:09:55,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:09:56,308 INFO L134 CoverageAnalysis]: Checked inductivity of 987 backedges. 589 proven. 189 refuted. 0 times theorem prover too weak. 209 trivial. 0 not checked. [2024-11-16 04:09:56,308 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:09:56,308 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [741893146] [2024-11-16 04:09:56,308 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [741893146] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 04:09:56,309 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1821102880] [2024-11-16 04:09:56,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:09:56,309 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 04:09:56,309 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 04:09:56,313 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 04:09:56,317 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-16 04:09:56,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:09:56,562 INFO L255 TraceCheckSpWp]: Trace formula consists of 899 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-16 04:09:56,567 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 04:10:01,287 INFO L134 CoverageAnalysis]: Checked inductivity of 987 backedges. 255 proven. 0 refuted. 0 times theorem prover too weak. 732 trivial. 0 not checked. [2024-11-16 04:10:01,287 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 04:10:01,287 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1821102880] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:10:01,287 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 04:10:01,287 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2024-11-16 04:10:01,288 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [504312144] [2024-11-16 04:10:01,288 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:10:01,288 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:10:01,288 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:10:01,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:10:01,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-16 04:10:01,289 INFO L87 Difference]: Start difference. First operand 15692 states and 16319 transitions. Second operand has 3 states, 3 states have (on average 114.66666666666667) internal successors, (344), 3 states have internal predecessors, (344), 0 states have call successors, (0), 0 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 04:10:07,145 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-16 04:10:11,190 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-16 04:10:12,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:10:12,324 INFO L93 Difference]: Finished difference Result 36506 states and 38017 transitions. [2024-11-16 04:10:12,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:10:12,325 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 114.66666666666667) internal successors, (344), 3 states have internal predecessors, (344), 0 states have call successors, (0), 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 762 [2024-11-16 04:10:12,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:10:12,356 INFO L225 Difference]: With dead ends: 36506 [2024-11-16 04:10:12,360 INFO L226 Difference]: Without dead ends: 20816 [2024-11-16 04:10:12,376 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 765 GetRequests, 698 SyntacticMatches, 63 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-16 04:10:12,377 INFO L432 NwaCegarLoop]: 80 mSDtfsCounter, 294 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 795 mSolverCounterSat, 159 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 294 SdHoareTripleChecker+Valid, 101 SdHoareTripleChecker+Invalid, 956 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 159 IncrementalHoareTripleChecker+Valid, 795 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.9s IncrementalHoareTripleChecker+Time [2024-11-16 04:10:12,377 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [294 Valid, 101 Invalid, 956 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [159 Valid, 795 Invalid, 2 Unknown, 0 Unchecked, 10.9s Time] [2024-11-16 04:10:12,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20816 states. [2024-11-16 04:10:12,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20816 to 19299. [2024-11-16 04:10:12,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19299 states, 19298 states have (on average 1.0409368846512592) internal successors, (20088), 19298 states have internal predecessors, (20088), 0 states have call successors, (0), 0 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 04:10:12,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19299 states to 19299 states and 20088 transitions. [2024-11-16 04:10:12,655 INFO L78 Accepts]: Start accepts. Automaton has 19299 states and 20088 transitions. Word has length 762 [2024-11-16 04:10:12,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:10:12,657 INFO L471 AbstractCegarLoop]: Abstraction has 19299 states and 20088 transitions. [2024-11-16 04:10:12,657 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 114.66666666666667) internal successors, (344), 3 states have internal predecessors, (344), 0 states have call successors, (0), 0 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 04:10:12,657 INFO L276 IsEmpty]: Start isEmpty. Operand 19299 states and 20088 transitions. [2024-11-16 04:10:12,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 845 [2024-11-16 04:10:12,676 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:10:12,676 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:10:12,690 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-16 04:10:12,877 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-11-16 04:10:12,878 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:10:12,878 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:10:12,878 INFO L85 PathProgramCache]: Analyzing trace with hash -1442443237, now seen corresponding path program 1 times [2024-11-16 04:10:12,878 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:10:12,879 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1929697607] [2024-11-16 04:10:12,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:10:12,879 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:10:13,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:10:13,216 INFO L134 CoverageAnalysis]: Checked inductivity of 1397 backedges. 756 proven. 0 refuted. 0 times theorem prover too weak. 641 trivial. 0 not checked. [2024-11-16 04:10:13,216 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:10:13,216 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1929697607] [2024-11-16 04:10:13,216 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1929697607] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:10:13,217 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:10:13,217 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 04:10:13,217 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [836134530] [2024-11-16 04:10:13,217 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:10:13,217 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:10:13,218 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:10:13,218 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:10:13,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:10:13,219 INFO L87 Difference]: Start difference. First operand 19299 states and 20088 transitions. Second operand has 3 states, 3 states have (on average 126.0) internal successors, (378), 3 states have internal predecessors, (378), 0 states have call successors, (0), 0 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 04:10:14,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:10:14,016 INFO L93 Difference]: Finished difference Result 32244 states and 33430 transitions. [2024-11-16 04:10:14,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:10:14,017 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 126.0) internal successors, (378), 3 states have internal predecessors, (378), 0 states have call successors, (0), 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 844 [2024-11-16 04:10:14,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:10:14,029 INFO L225 Difference]: With dead ends: 32244 [2024-11-16 04:10:14,029 INFO L226 Difference]: Without dead ends: 13247 [2024-11-16 04:10:14,039 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 04:10:14,039 INFO L432 NwaCegarLoop]: 361 mSDtfsCounter, 343 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 685 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 343 SdHoareTripleChecker+Valid, 370 SdHoareTripleChecker+Invalid, 753 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 685 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-16 04:10:14,039 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [343 Valid, 370 Invalid, 753 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 685 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-16 04:10:14,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13247 states. [2024-11-16 04:10:14,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13247 to 11143. [2024-11-16 04:10:14,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11143 states, 11142 states have (on average 1.0300664153652845) internal successors, (11477), 11142 states have internal predecessors, (11477), 0 states have call successors, (0), 0 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 04:10:14,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11143 states to 11143 states and 11477 transitions. [2024-11-16 04:10:14,133 INFO L78 Accepts]: Start accepts. Automaton has 11143 states and 11477 transitions. Word has length 844 [2024-11-16 04:10:14,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:10:14,133 INFO L471 AbstractCegarLoop]: Abstraction has 11143 states and 11477 transitions. [2024-11-16 04:10:14,134 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 126.0) internal successors, (378), 3 states have internal predecessors, (378), 0 states have call successors, (0), 0 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 04:10:14,134 INFO L276 IsEmpty]: Start isEmpty. Operand 11143 states and 11477 transitions. [2024-11-16 04:10:14,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 889 [2024-11-16 04:10:14,144 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:10:14,144 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 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, 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] [2024-11-16 04:10:14,145 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-16 04:10:14,145 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:10:14,145 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:10:14,145 INFO L85 PathProgramCache]: Analyzing trace with hash -1366567287, now seen corresponding path program 1 times [2024-11-16 04:10:14,145 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:10:14,146 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [897688213] [2024-11-16 04:10:14,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:10:14,146 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:10:14,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:10:14,423 INFO L134 CoverageAnalysis]: Checked inductivity of 1466 backedges. 802 proven. 0 refuted. 0 times theorem prover too weak. 664 trivial. 0 not checked. [2024-11-16 04:10:14,423 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:10:14,423 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [897688213] [2024-11-16 04:10:14,423 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [897688213] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:10:14,423 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:10:14,424 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 04:10:14,424 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [959203686] [2024-11-16 04:10:14,425 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:10:14,425 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:10:14,425 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:10:14,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:10:14,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:10:14,426 INFO L87 Difference]: Start difference. First operand 11143 states and 11477 transitions. Second operand has 3 states, 3 states have (on average 157.66666666666666) internal successors, (473), 3 states have internal predecessors, (473), 0 states have call successors, (0), 0 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 04:10:15,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:10:15,158 INFO L93 Difference]: Finished difference Result 22579 states and 23249 transitions. [2024-11-16 04:10:15,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:10:15,159 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 157.66666666666666) internal successors, (473), 3 states have internal predecessors, (473), 0 states have call successors, (0), 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 888 [2024-11-16 04:10:15,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:10:15,160 INFO L225 Difference]: With dead ends: 22579 [2024-11-16 04:10:15,160 INFO L226 Difference]: Without dead ends: 0 [2024-11-16 04:10:15,167 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 04:10:15,168 INFO L432 NwaCegarLoop]: 395 mSDtfsCounter, 128 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 678 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 412 SdHoareTripleChecker+Invalid, 735 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 678 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-16 04:10:15,168 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [128 Valid, 412 Invalid, 735 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 678 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-16 04:10:15,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-16 04:10:15,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-16 04:10:15,169 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 04:10:15,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-16 04:10:15,170 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 888 [2024-11-16 04:10:15,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:10:15,170 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-16 04:10:15,170 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 157.66666666666666) internal successors, (473), 3 states have internal predecessors, (473), 0 states have call successors, (0), 0 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 04:10:15,170 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-16 04:10:15,170 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-16 04:10:15,173 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-16 04:10:15,174 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-16 04:10:15,177 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:10:15,179 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-16 04:10:18,493 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-16 04:10:18,504 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 04:10:18 BoogieIcfgContainer [2024-11-16 04:10:18,505 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-16 04:10:18,505 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-16 04:10:18,505 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-16 04:10:18,505 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-16 04:10:18,506 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 04:09:21" (3/4) ... [2024-11-16 04:10:18,511 INFO L143 WitnessPrinter]: Generating witness for correct program [2024-11-16 04:10:18,547 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2024-11-16 04:10:18,552 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-16 04:10:18,554 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-16 04:10:18,555 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-16 04:10:18,693 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-16 04:10:18,693 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-16 04:10:18,693 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-16 04:10:18,694 INFO L158 Benchmark]: Toolchain (without parser) took 60996.65ms. Allocated memory was 159.4MB in the beginning and 1.7GB in the end (delta: 1.5GB). Free memory was 82.2MB in the beginning and 691.4MB in the end (delta: -609.3MB). Peak memory consumption was 937.9MB. Max. memory is 16.1GB. [2024-11-16 04:10:18,694 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 159.4MB. Free memory is still 116.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-16 04:10:18,694 INFO L158 Benchmark]: CACSL2BoogieTranslator took 752.11ms. Allocated memory is still 159.4MB. Free memory was 82.0MB in the beginning and 57.4MB in the end (delta: 24.5MB). Peak memory consumption was 33.7MB. Max. memory is 16.1GB. [2024-11-16 04:10:18,695 INFO L158 Benchmark]: Boogie Procedure Inliner took 283.77ms. Allocated memory was 159.4MB in the beginning and 218.1MB in the end (delta: 58.7MB). Free memory was 57.4MB in the beginning and 143.4MB in the end (delta: -86.0MB). Peak memory consumption was 24.1MB. Max. memory is 16.1GB. [2024-11-16 04:10:18,695 INFO L158 Benchmark]: Boogie Preprocessor took 219.40ms. Allocated memory is still 218.1MB. Free memory was 143.4MB in the beginning and 86.8MB in the end (delta: 56.6MB). Peak memory consumption was 56.6MB. Max. memory is 16.1GB. [2024-11-16 04:10:18,695 INFO L158 Benchmark]: IcfgBuilder took 2374.71ms. Allocated memory was 218.1MB in the beginning and 436.2MB in the end (delta: 218.1MB). Free memory was 86.8MB in the beginning and 291.8MB in the end (delta: -205.0MB). Peak memory consumption was 52.2MB. Max. memory is 16.1GB. [2024-11-16 04:10:18,695 INFO L158 Benchmark]: TraceAbstraction took 57168.80ms. Allocated memory was 436.2MB in the beginning and 1.7GB in the end (delta: 1.3GB). Free memory was 290.7MB in the beginning and 718.7MB in the end (delta: -427.9MB). Peak memory consumption was 948.8MB. Max. memory is 16.1GB. [2024-11-16 04:10:18,696 INFO L158 Benchmark]: Witness Printer took 188.37ms. Allocated memory is still 1.7GB. Free memory was 717.6MB in the beginning and 691.4MB in the end (delta: 26.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-16 04:10:18,697 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 159.4MB. Free memory is still 116.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 752.11ms. Allocated memory is still 159.4MB. Free memory was 82.0MB in the beginning and 57.4MB in the end (delta: 24.5MB). Peak memory consumption was 33.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 283.77ms. Allocated memory was 159.4MB in the beginning and 218.1MB in the end (delta: 58.7MB). Free memory was 57.4MB in the beginning and 143.4MB in the end (delta: -86.0MB). Peak memory consumption was 24.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 219.40ms. Allocated memory is still 218.1MB. Free memory was 143.4MB in the beginning and 86.8MB in the end (delta: 56.6MB). Peak memory consumption was 56.6MB. Max. memory is 16.1GB. * IcfgBuilder took 2374.71ms. Allocated memory was 218.1MB in the beginning and 436.2MB in the end (delta: 218.1MB). Free memory was 86.8MB in the beginning and 291.8MB in the end (delta: -205.0MB). Peak memory consumption was 52.2MB. Max. memory is 16.1GB. * TraceAbstraction took 57168.80ms. Allocated memory was 436.2MB in the beginning and 1.7GB in the end (delta: 1.3GB). Free memory was 290.7MB in the beginning and 718.7MB in the end (delta: -427.9MB). Peak memory consumption was 948.8MB. Max. memory is 16.1GB. * Witness Printer took 188.37ms. Allocated memory is still 1.7GB. Free memory was 717.6MB in the beginning and 691.4MB in the end (delta: 26.2MB). Peak memory consumption was 25.2MB. 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: 212]: 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, 427 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 53.8s, OverallIterations: 20, TraceHistogramMax: 6, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.2s, AutomataDifference: 35.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 2 mSolverCounterUnknown, 5750 SdHoareTripleChecker+Valid, 33.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 5750 mSDsluCounter, 7636 SdHoareTripleChecker+Invalid, 29.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 737 mSDsCounter, 3850 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 18541 IncrementalHoareTripleChecker+Invalid, 22393 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3850 mSolverCounterUnsat, 6899 mSDtfsCounter, 18541 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2696 GetRequests, 2598 SyntacticMatches, 63 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 1.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=19299occurred in iteration=18, InterpolantAutomatonStates: 63, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 2.1s AutomataMinimizationTime, 20 MinimizatonAttempts, 20522 StatesRemovedByMinimization, 17 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.4s SsaConstructionTime, 1.1s SatisfiabilityAnalysisTime, 12.3s InterpolantComputationTime, 13218 NumberOfCodeBlocks, 13218 NumberOfCodeBlocksAsserted, 24 NumberOfCheckSat, 13194 ConstructedInterpolants, 64 QuantifiedInterpolants, 44367 SizeOfPredicates, 1 NumberOfNonLiveVariables, 3173 ConjunctsInSsa, 9 ConjunctsInUnsatCore, 24 InterpolantComputations, 20 PerfectInterpolantSequences, 15644/16081 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: 1776]: Location Invariant Derived location invariant: null RESULT: Ultimate proved your program to be correct! [2024-11-16 04:10:18,799 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE