./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem16_label17.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3289d67d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/eca-rers2012/Problem16_label17.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 2d1627f871329627aa5e3c4bb03691b2c1776c373457e4d479d53574c4f3c2af --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 04:12:58,718 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 04:12:58,776 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-16 04:12:58,779 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 04:12:58,781 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 04:12:58,802 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 04:12:58,803 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 04:12:58,803 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 04:12:58,804 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-16 04:12:58,805 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-16 04:12:58,805 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 04:12:58,805 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 04:12:58,806 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 04:12:58,807 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 04:12:58,808 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 04:12:58,808 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 04:12:58,808 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 04:12:58,808 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-16 04:12:58,809 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 04:12:58,809 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-16 04:12:58,809 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 04:12:58,812 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 04:12:58,813 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 04:12:58,813 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 04:12:58,813 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 04:12:58,813 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-16 04:12:58,813 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 04:12:58,813 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 04:12:58,814 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 04:12:58,814 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 04:12:58,814 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-16 04:12:58,814 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 04:12:58,814 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 04:12:58,815 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 04:12:58,815 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 04:12:58,815 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 04:12:58,815 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 04:12:58,815 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 04:12:58,816 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 04:12:58,816 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 04:12:58,816 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 04:12:58,818 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 04:12:58,818 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2d1627f871329627aa5e3c4bb03691b2c1776c373457e4d479d53574c4f3c2af [2024-11-16 04:12:59,007 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 04:12:59,024 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 04:12:59,026 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 04:12:59,027 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 04:12:59,027 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 04:12:59,028 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem16_label17.c [2024-11-16 04:13:00,553 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 04:13:00,808 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 04:13:00,809 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem16_label17.c [2024-11-16 04:13:00,824 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bcf101ae3/4177d8baf5f24be6a0895d87a8304d31/FLAGab04b3ca1 [2024-11-16 04:13:00,837 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bcf101ae3/4177d8baf5f24be6a0895d87a8304d31 [2024-11-16 04:13:00,839 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 04:13:00,840 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 04:13:00,843 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 04:13:00,843 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 04:13:00,847 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 04:13:00,847 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 04:13:00" (1/1) ... [2024-11-16 04:13:00,848 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1e0f017a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:13:00, skipping insertion in model container [2024-11-16 04:13:00,848 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 04:13:00" (1/1) ... [2024-11-16 04:13:00,894 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 04:13:01,186 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem16_label17.c[6102,6115] [2024-11-16 04:13:01,681 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 04:13:01,697 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 04:13:01,734 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem16_label17.c[6102,6115] [2024-11-16 04:13:01,973 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 04:13:02,004 INFO L204 MainTranslator]: Completed translation [2024-11-16 04:13:02,008 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:13:02 WrapperNode [2024-11-16 04:13:02,009 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 04:13:02,010 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 04:13:02,010 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 04:13:02,010 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 04:13:02,020 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:13:02" (1/1) ... [2024-11-16 04:13:02,068 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:13:02" (1/1) ... [2024-11-16 04:13:02,250 INFO L138 Inliner]: procedures = 15, calls = 9, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 1769 [2024-11-16 04:13:02,254 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 04:13:02,255 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 04:13:02,255 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 04:13:02,255 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 04:13:02,269 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:13:02" (1/1) ... [2024-11-16 04:13:02,270 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:13:02" (1/1) ... [2024-11-16 04:13:02,280 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:13:02" (1/1) ... [2024-11-16 04:13:02,339 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 04:13:02,340 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:13:02" (1/1) ... [2024-11-16 04:13:02,340 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:13:02" (1/1) ... [2024-11-16 04:13:02,394 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:13:02" (1/1) ... [2024-11-16 04:13:02,408 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:13:02" (1/1) ... [2024-11-16 04:13:02,429 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:13:02" (1/1) ... [2024-11-16 04:13:02,437 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:13:02" (1/1) ... [2024-11-16 04:13:02,474 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 04:13:02,474 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 04:13:02,474 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 04:13:02,474 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 04:13:02,475 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:13:02" (1/1) ... [2024-11-16 04:13:02,483 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 04:13:02,493 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 04:13:02,512 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 04:13:02,522 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 04:13:02,578 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 04:13:02,578 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-16 04:13:02,578 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 04:13:02,578 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 04:13:02,674 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 04:13:02,676 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 04:13:04,353 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L1501: havoc calculate_output_#t~ret7#1; [2024-11-16 04:13:04,463 INFO L? ?]: Removed 276 outVars from TransFormulas that were not future-live. [2024-11-16 04:13:04,463 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 04:13:04,487 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 04:13:04,487 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 04:13:04,488 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 04:13:04 BoogieIcfgContainer [2024-11-16 04:13:04,491 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 04:13:04,492 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 04:13:04,492 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 04:13:04,495 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 04:13:04,499 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 04:13:00" (1/3) ... [2024-11-16 04:13:04,500 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d8c1380 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 04:13:04, skipping insertion in model container [2024-11-16 04:13:04,500 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:13:02" (2/3) ... [2024-11-16 04:13:04,500 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d8c1380 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 04:13:04, skipping insertion in model container [2024-11-16 04:13:04,500 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 04:13:04" (3/3) ... [2024-11-16 04:13:04,501 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem16_label17.c [2024-11-16 04:13:04,528 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 04:13:04,529 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-16 04:13:04,645 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 04:13:04,655 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;@7e5d2bb3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 04:13:04,663 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-16 04:13:04,674 INFO L276 IsEmpty]: Start isEmpty. Operand has 399 states, 397 states have (on average 1.8287153652392947) internal successors, (726), 398 states have internal predecessors, (726), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:13:04,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-11-16 04:13:04,690 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:13:04,691 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] [2024-11-16 04:13:04,692 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:13:04,700 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:13:04,700 INFO L85 PathProgramCache]: Analyzing trace with hash -530827478, now seen corresponding path program 1 times [2024-11-16 04:13:04,712 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:13:04,716 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1067121545] [2024-11-16 04:13:04,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:13:04,717 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:13:04,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:13:05,439 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 04:13:05,439 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:13:05,439 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1067121545] [2024-11-16 04:13:05,440 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1067121545] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:13:05,440 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:13:05,440 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 04:13:05,446 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1668613089] [2024-11-16 04:13:05,447 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:13:05,454 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:13:05,454 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:13:05,488 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:13:05,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:13:05,495 INFO L87 Difference]: Start difference. First operand has 399 states, 397 states have (on average 1.8287153652392947) internal successors, (726), 398 states have internal predecessors, (726), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 20.0) internal successors, (60), 2 states have internal predecessors, (60), 0 states have call successors, (0), 0 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 04:13:06,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:13:06,978 INFO L93 Difference]: Finished difference Result 1128 states and 2109 transitions. [2024-11-16 04:13:06,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:13:06,981 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 2 states have internal predecessors, (60), 0 states have call successors, (0), 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 60 [2024-11-16 04:13:06,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:13:06,992 INFO L225 Difference]: With dead ends: 1128 [2024-11-16 04:13:06,992 INFO L226 Difference]: Without dead ends: 665 [2024-11-16 04:13:06,995 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 04:13:06,997 INFO L432 NwaCegarLoop]: 248 mSDtfsCounter, 329 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 864 mSolverCounterSat, 450 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 329 SdHoareTripleChecker+Valid, 258 SdHoareTripleChecker+Invalid, 1314 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 450 IncrementalHoareTripleChecker+Valid, 864 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-16 04:13:06,997 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [329 Valid, 258 Invalid, 1314 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [450 Valid, 864 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-16 04:13:07,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 665 states. [2024-11-16 04:13:07,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 665 to 665. [2024-11-16 04:13:07,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 665 states, 664 states have (on average 1.516566265060241) internal successors, (1007), 664 states have internal predecessors, (1007), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:13:07,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 665 states to 665 states and 1007 transitions. [2024-11-16 04:13:07,065 INFO L78 Accepts]: Start accepts. Automaton has 665 states and 1007 transitions. Word has length 60 [2024-11-16 04:13:07,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:13:07,065 INFO L471 AbstractCegarLoop]: Abstraction has 665 states and 1007 transitions. [2024-11-16 04:13:07,065 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 2 states have internal predecessors, (60), 0 states have call successors, (0), 0 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 04:13:07,066 INFO L276 IsEmpty]: Start isEmpty. Operand 665 states and 1007 transitions. [2024-11-16 04:13:07,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-16 04:13:07,068 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:13:07,068 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:13:07,069 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 04:13:07,069 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:13:07,069 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:13:07,070 INFO L85 PathProgramCache]: Analyzing trace with hash -1891639850, now seen corresponding path program 1 times [2024-11-16 04:13:07,070 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:13:07,070 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [678158860] [2024-11-16 04:13:07,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:13:07,070 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:13:07,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:13:07,404 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 04:13:07,404 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:13:07,404 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [678158860] [2024-11-16 04:13:07,405 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [678158860] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:13:07,405 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:13:07,405 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 04:13:07,405 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [275328738] [2024-11-16 04:13:07,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:13:07,406 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 04:13:07,406 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:13:07,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 04:13:07,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 04:13:07,407 INFO L87 Difference]: Start difference. First operand 665 states and 1007 transitions. Second operand has 4 states, 4 states have (on average 32.25) internal successors, (129), 3 states have internal predecessors, (129), 0 states have call successors, (0), 0 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 04:13:09,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:13:09,417 INFO L93 Difference]: Finished difference Result 2318 states and 3423 transitions. [2024-11-16 04:13:09,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 04:13:09,418 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 32.25) internal successors, (129), 3 states have internal predecessors, (129), 0 states have call successors, (0), 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 129 [2024-11-16 04:13:09,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:13:09,424 INFO L225 Difference]: With dead ends: 2318 [2024-11-16 04:13:09,424 INFO L226 Difference]: Without dead ends: 1655 [2024-11-16 04:13:09,428 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-16 04:13:09,429 INFO L432 NwaCegarLoop]: 35 mSDtfsCounter, 1011 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 1496 mSolverCounterSat, 489 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1011 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 1985 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 489 IncrementalHoareTripleChecker+Valid, 1496 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-16 04:13:09,429 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1011 Valid, 47 Invalid, 1985 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [489 Valid, 1496 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-16 04:13:09,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1655 states. [2024-11-16 04:13:09,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1655 to 1655. [2024-11-16 04:13:09,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1655 states, 1654 states have (on average 1.400241837968561) internal successors, (2316), 1654 states have internal predecessors, (2316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:13:09,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1655 states to 1655 states and 2316 transitions. [2024-11-16 04:13:09,459 INFO L78 Accepts]: Start accepts. Automaton has 1655 states and 2316 transitions. Word has length 129 [2024-11-16 04:13:09,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:13:09,459 INFO L471 AbstractCegarLoop]: Abstraction has 1655 states and 2316 transitions. [2024-11-16 04:13:09,460 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.25) internal successors, (129), 3 states have internal predecessors, (129), 0 states have call successors, (0), 0 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 04:13:09,460 INFO L276 IsEmpty]: Start isEmpty. Operand 1655 states and 2316 transitions. [2024-11-16 04:13:09,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2024-11-16 04:13:09,462 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:13:09,462 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:13:09,463 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-16 04:13:09,463 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:13:09,463 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:13:09,463 INFO L85 PathProgramCache]: Analyzing trace with hash 1572737272, now seen corresponding path program 1 times [2024-11-16 04:13:09,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:13:09,464 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [496882008] [2024-11-16 04:13:09,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:13:09,464 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:13:09,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:13:09,789 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 04:13:09,790 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:13:09,791 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [496882008] [2024-11-16 04:13:09,791 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [496882008] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:13:09,791 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:13:09,793 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 04:13:09,793 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [193535546] [2024-11-16 04:13:09,793 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:13:09,794 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:13:09,794 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:13:09,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:13:09,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:13:09,795 INFO L87 Difference]: Start difference. First operand 1655 states and 2316 transitions. Second operand has 3 states, 3 states have (on average 64.0) internal successors, (192), 2 states have internal predecessors, (192), 0 states have call successors, (0), 0 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 04:13:11,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:13:11,110 INFO L93 Difference]: Finished difference Result 3638 states and 5255 transitions. [2024-11-16 04:13:11,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:13:11,110 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 64.0) internal successors, (192), 2 states have internal predecessors, (192), 0 states have call successors, (0), 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 192 [2024-11-16 04:13:11,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:13:11,116 INFO L225 Difference]: With dead ends: 3638 [2024-11-16 04:13:11,117 INFO L226 Difference]: Without dead ends: 2315 [2024-11-16 04:13:11,118 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 04:13:11,119 INFO L432 NwaCegarLoop]: 75 mSDtfsCounter, 279 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 882 mSolverCounterSat, 380 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 279 SdHoareTripleChecker+Valid, 80 SdHoareTripleChecker+Invalid, 1262 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 380 IncrementalHoareTripleChecker+Valid, 882 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-16 04:13:11,119 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [279 Valid, 80 Invalid, 1262 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [380 Valid, 882 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-16 04:13:11,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2315 states. [2024-11-16 04:13:11,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2315 to 2315. [2024-11-16 04:13:11,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2315 states, 2314 states have (on average 1.3487467588591184) internal successors, (3121), 2314 states have internal predecessors, (3121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:13:11,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2315 states to 2315 states and 3121 transitions. [2024-11-16 04:13:11,173 INFO L78 Accepts]: Start accepts. Automaton has 2315 states and 3121 transitions. Word has length 192 [2024-11-16 04:13:11,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:13:11,173 INFO L471 AbstractCegarLoop]: Abstraction has 2315 states and 3121 transitions. [2024-11-16 04:13:11,173 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 64.0) internal successors, (192), 2 states have internal predecessors, (192), 0 states have call successors, (0), 0 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 04:13:11,173 INFO L276 IsEmpty]: Start isEmpty. Operand 2315 states and 3121 transitions. [2024-11-16 04:13:11,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2024-11-16 04:13:11,179 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:13:11,179 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:13:11,179 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-16 04:13:11,179 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:13:11,179 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:13:11,180 INFO L85 PathProgramCache]: Analyzing trace with hash -2147011658, now seen corresponding path program 1 times [2024-11-16 04:13:11,180 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:13:11,180 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [166257639] [2024-11-16 04:13:11,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:13:11,180 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:13:11,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:13:11,385 INFO L134 CoverageAnalysis]: Checked inductivity of 192 backedges. 113 proven. 0 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2024-11-16 04:13:11,386 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:13:11,386 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [166257639] [2024-11-16 04:13:11,386 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [166257639] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:13:11,386 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:13:11,386 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 04:13:11,387 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [605514260] [2024-11-16 04:13:11,387 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:13:11,387 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:13:11,388 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:13:11,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:13:11,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:13:11,389 INFO L87 Difference]: Start difference. First operand 2315 states and 3121 transitions. Second operand has 3 states, 3 states have (on average 50.0) internal successors, (150), 2 states have internal predecessors, (150), 0 states have call successors, (0), 0 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 04:13:12,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:13:12,402 INFO L93 Difference]: Finished difference Result 5618 states and 7718 transitions. [2024-11-16 04:13:12,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:13:12,403 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 50.0) internal successors, (150), 2 states have internal predecessors, (150), 0 states have call successors, (0), 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 228 [2024-11-16 04:13:12,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:13:12,413 INFO L225 Difference]: With dead ends: 5618 [2024-11-16 04:13:12,413 INFO L226 Difference]: Without dead ends: 3635 [2024-11-16 04:13:12,416 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 04:13:12,417 INFO L432 NwaCegarLoop]: 153 mSDtfsCounter, 360 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 811 mSolverCounterSat, 307 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 360 SdHoareTripleChecker+Valid, 158 SdHoareTripleChecker+Invalid, 1118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 307 IncrementalHoareTripleChecker+Valid, 811 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-16 04:13:12,417 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [360 Valid, 158 Invalid, 1118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [307 Valid, 811 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-16 04:13:12,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3635 states. [2024-11-16 04:13:12,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3635 to 2975. [2024-11-16 04:13:12,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2975 states, 2974 states have (on average 1.2434431741761938) internal successors, (3698), 2974 states have internal predecessors, (3698), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:13:12,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2975 states to 2975 states and 3698 transitions. [2024-11-16 04:13:12,510 INFO L78 Accepts]: Start accepts. Automaton has 2975 states and 3698 transitions. Word has length 228 [2024-11-16 04:13:12,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:13:12,511 INFO L471 AbstractCegarLoop]: Abstraction has 2975 states and 3698 transitions. [2024-11-16 04:13:12,511 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.0) internal successors, (150), 2 states have internal predecessors, (150), 0 states have call successors, (0), 0 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 04:13:12,511 INFO L276 IsEmpty]: Start isEmpty. Operand 2975 states and 3698 transitions. [2024-11-16 04:13:12,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 246 [2024-11-16 04:13:12,513 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:13:12,514 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:13:12,514 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-16 04:13:12,514 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:13:12,514 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:13:12,515 INFO L85 PathProgramCache]: Analyzing trace with hash 1894395156, now seen corresponding path program 1 times [2024-11-16 04:13:12,515 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:13:12,515 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [396604518] [2024-11-16 04:13:12,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:13:12,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:13:12,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:13:12,710 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 200 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 04:13:12,710 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:13:12,710 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [396604518] [2024-11-16 04:13:12,710 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [396604518] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:13:12,710 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:13:12,710 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 04:13:12,710 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1449546918] [2024-11-16 04:13:12,710 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:13:12,711 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:13:12,711 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:13:12,711 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:13:12,711 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:13:12,712 INFO L87 Difference]: Start difference. First operand 2975 states and 3698 transitions. Second operand has 3 states, 3 states have (on average 81.66666666666667) internal successors, (245), 3 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:13:13,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:13:13,707 INFO L93 Difference]: Finished difference Result 6938 states and 8680 transitions. [2024-11-16 04:13:13,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:13:13,707 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 81.66666666666667) internal successors, (245), 3 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 245 [2024-11-16 04:13:13,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:13:13,716 INFO L225 Difference]: With dead ends: 6938 [2024-11-16 04:13:13,716 INFO L226 Difference]: Without dead ends: 3965 [2024-11-16 04:13:13,720 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 04:13:13,721 INFO L432 NwaCegarLoop]: 537 mSDtfsCounter, 288 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 796 mSolverCounterSat, 298 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 288 SdHoareTripleChecker+Valid, 543 SdHoareTripleChecker+Invalid, 1094 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 298 IncrementalHoareTripleChecker+Valid, 796 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-16 04:13:13,721 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [288 Valid, 543 Invalid, 1094 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [298 Valid, 796 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-16 04:13:13,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3965 states. [2024-11-16 04:13:13,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3965 to 3965. [2024-11-16 04:13:13,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3965 states, 3964 states have (on average 1.0734106962663976) internal successors, (4255), 3964 states have internal predecessors, (4255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:13:13,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3965 states to 3965 states and 4255 transitions. [2024-11-16 04:13:13,846 INFO L78 Accepts]: Start accepts. Automaton has 3965 states and 4255 transitions. Word has length 245 [2024-11-16 04:13:13,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:13:13,846 INFO L471 AbstractCegarLoop]: Abstraction has 3965 states and 4255 transitions. [2024-11-16 04:13:13,847 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 81.66666666666667) internal successors, (245), 3 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:13:13,847 INFO L276 IsEmpty]: Start isEmpty. Operand 3965 states and 4255 transitions. [2024-11-16 04:13:13,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2024-11-16 04:13:13,849 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:13:13,849 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:13:13,849 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-16 04:13:13,849 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:13:13,850 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:13:13,850 INFO L85 PathProgramCache]: Analyzing trace with hash 1708899316, now seen corresponding path program 1 times [2024-11-16 04:13:13,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:13:13,850 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1608648044] [2024-11-16 04:13:13,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:13:13,850 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:13:13,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:13:14,021 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 04:13:14,022 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:13:14,022 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1608648044] [2024-11-16 04:13:14,022 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1608648044] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:13:14,022 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:13:14,022 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 04:13:14,023 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [67686690] [2024-11-16 04:13:14,023 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:13:14,023 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:13:14,023 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:13:14,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:13:14,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:13:14,024 INFO L87 Difference]: Start difference. First operand 3965 states and 4255 transitions. Second operand has 3 states, 3 states have (on average 98.66666666666667) internal successors, (296), 3 states have internal predecessors, (296), 0 states have call successors, (0), 0 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 04:13:14,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:13:14,790 INFO L93 Difference]: Finished difference Result 9248 states and 9956 transitions. [2024-11-16 04:13:14,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:13:14,791 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 98.66666666666667) internal successors, (296), 3 states have internal predecessors, (296), 0 states have call successors, (0), 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 296 [2024-11-16 04:13:14,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:13:14,804 INFO L225 Difference]: With dead ends: 9248 [2024-11-16 04:13:14,804 INFO L226 Difference]: Without dead ends: 5285 [2024-11-16 04:13:14,808 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 04:13:14,811 INFO L432 NwaCegarLoop]: 421 mSDtfsCounter, 279 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 772 mSolverCounterSat, 91 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 279 SdHoareTripleChecker+Valid, 429 SdHoareTripleChecker+Invalid, 863 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 91 IncrementalHoareTripleChecker+Valid, 772 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-16 04:13:14,811 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [279 Valid, 429 Invalid, 863 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [91 Valid, 772 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-16 04:13:14,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5285 states. [2024-11-16 04:13:14,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5285 to 5285. [2024-11-16 04:13:14,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5285 states, 5284 states have (on average 1.049205147615443) internal successors, (5544), 5284 states have internal predecessors, (5544), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:13:14,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5285 states to 5285 states and 5544 transitions. [2024-11-16 04:13:14,884 INFO L78 Accepts]: Start accepts. Automaton has 5285 states and 5544 transitions. Word has length 296 [2024-11-16 04:13:14,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:13:14,885 INFO L471 AbstractCegarLoop]: Abstraction has 5285 states and 5544 transitions. [2024-11-16 04:13:14,885 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 98.66666666666667) internal successors, (296), 3 states have internal predecessors, (296), 0 states have call successors, (0), 0 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 04:13:14,886 INFO L276 IsEmpty]: Start isEmpty. Operand 5285 states and 5544 transitions. [2024-11-16 04:13:14,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 402 [2024-11-16 04:13:14,890 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:13:14,890 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:13:14,890 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-16 04:13:14,890 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:13:14,891 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:13:14,891 INFO L85 PathProgramCache]: Analyzing trace with hash -1875510310, now seen corresponding path program 1 times [2024-11-16 04:13:14,891 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:13:14,891 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1510169969] [2024-11-16 04:13:14,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:13:14,892 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:13:14,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:13:15,102 INFO L134 CoverageAnalysis]: Checked inductivity of 209 backedges. 113 proven. 0 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2024-11-16 04:13:15,103 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:13:15,103 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1510169969] [2024-11-16 04:13:15,103 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1510169969] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:13:15,103 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:13:15,103 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 04:13:15,104 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1523121355] [2024-11-16 04:13:15,104 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:13:15,104 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:13:15,104 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:13:15,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:13:15,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:13:15,105 INFO L87 Difference]: Start difference. First operand 5285 states and 5544 transitions. Second operand has 3 states, 3 states have (on average 102.0) internal successors, (306), 3 states have internal predecessors, (306), 0 states have call successors, (0), 0 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 04:13:15,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:13:15,846 INFO L93 Difference]: Finished difference Result 11888 states and 12533 transitions. [2024-11-16 04:13:15,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:13:15,847 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 102.0) internal successors, (306), 3 states have internal predecessors, (306), 0 states have call successors, (0), 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 401 [2024-11-16 04:13:15,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:13:15,859 INFO L225 Difference]: With dead ends: 11888 [2024-11-16 04:13:15,860 INFO L226 Difference]: Without dead ends: 6605 [2024-11-16 04:13:15,864 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 04:13:15,864 INFO L432 NwaCegarLoop]: 36 mSDtfsCounter, 290 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 766 mSolverCounterSat, 99 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 290 SdHoareTripleChecker+Valid, 43 SdHoareTripleChecker+Invalid, 865 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 99 IncrementalHoareTripleChecker+Valid, 766 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-16 04:13:15,865 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [290 Valid, 43 Invalid, 865 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [99 Valid, 766 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-16 04:13:15,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6605 states. [2024-11-16 04:13:15,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6605 to 6605. [2024-11-16 04:13:15,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6605 states, 6604 states have (on average 1.0526953361599032) internal successors, (6952), 6604 states have internal predecessors, (6952), 0 states have call successors, (0), 0 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 04:13:15,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6605 states to 6605 states and 6952 transitions. [2024-11-16 04:13:15,938 INFO L78 Accepts]: Start accepts. Automaton has 6605 states and 6952 transitions. Word has length 401 [2024-11-16 04:13:15,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:13:15,939 INFO L471 AbstractCegarLoop]: Abstraction has 6605 states and 6952 transitions. [2024-11-16 04:13:15,939 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 102.0) internal successors, (306), 3 states have internal predecessors, (306), 0 states have call successors, (0), 0 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 04:13:15,939 INFO L276 IsEmpty]: Start isEmpty. Operand 6605 states and 6952 transitions. [2024-11-16 04:13:15,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 456 [2024-11-16 04:13:15,943 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:13:15,943 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-16 04:13:15,944 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-16 04:13:15,944 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:13:15,944 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:13:15,944 INFO L85 PathProgramCache]: Analyzing trace with hash -2046862773, now seen corresponding path program 1 times [2024-11-16 04:13:15,944 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:13:15,944 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1325583080] [2024-11-16 04:13:15,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:13:15,945 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:13:15,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:13:16,438 INFO L134 CoverageAnalysis]: Checked inductivity of 271 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 233 trivial. 0 not checked. [2024-11-16 04:13:16,439 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:13:16,439 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1325583080] [2024-11-16 04:13:16,439 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1325583080] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 04:13:16,439 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1189276510] [2024-11-16 04:13:16,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:13:16,441 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 04:13:16,441 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 04:13:16,442 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 04:13:16,444 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 04:13:16,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:13:16,571 INFO L255 TraceCheckSpWp]: Trace formula consists of 549 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-16 04:13:16,585 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 04:13:17,031 INFO L134 CoverageAnalysis]: Checked inductivity of 271 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 271 trivial. 0 not checked. [2024-11-16 04:13:17,031 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 04:13:17,032 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1189276510] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:13:17,032 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 04:13:17,032 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 4 [2024-11-16 04:13:17,032 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1807685137] [2024-11-16 04:13:17,032 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:13:17,033 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:13:17,033 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:13:17,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:13:17,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-16 04:13:17,034 INFO L87 Difference]: Start difference. First operand 6605 states and 6952 transitions. Second operand has 3 states, 3 states have (on average 80.66666666666667) internal successors, (242), 2 states have internal predecessors, (242), 0 states have call successors, (0), 0 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 04:13:17,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:13:17,707 INFO L93 Difference]: Finished difference Result 7928 states and 8310 transitions. [2024-11-16 04:13:17,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:13:17,707 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 80.66666666666667) internal successors, (242), 2 states have internal predecessors, (242), 0 states have call successors, (0), 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 455 [2024-11-16 04:13:17,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:13:17,721 INFO L225 Difference]: With dead ends: 7928 [2024-11-16 04:13:17,721 INFO L226 Difference]: Without dead ends: 7925 [2024-11-16 04:13:17,722 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 457 GetRequests, 454 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-16 04:13:17,723 INFO L432 NwaCegarLoop]: 75 mSDtfsCounter, 116 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 743 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 82 SdHoareTripleChecker+Invalid, 775 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 743 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-16 04:13:17,724 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [116 Valid, 82 Invalid, 775 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 743 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-16 04:13:17,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7925 states. [2024-11-16 04:13:17,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7925 to 6935. [2024-11-16 04:13:17,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6935 states, 6934 states have (on average 1.0520623017017594) internal successors, (7295), 6934 states have internal predecessors, (7295), 0 states have call successors, (0), 0 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 04:13:17,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6935 states to 6935 states and 7295 transitions. [2024-11-16 04:13:17,819 INFO L78 Accepts]: Start accepts. Automaton has 6935 states and 7295 transitions. Word has length 455 [2024-11-16 04:13:17,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:13:17,820 INFO L471 AbstractCegarLoop]: Abstraction has 6935 states and 7295 transitions. [2024-11-16 04:13:17,820 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 80.66666666666667) internal successors, (242), 2 states have internal predecessors, (242), 0 states have call successors, (0), 0 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 04:13:17,820 INFO L276 IsEmpty]: Start isEmpty. Operand 6935 states and 7295 transitions. [2024-11-16 04:13:17,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 868 [2024-11-16 04:13:17,840 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:13:17,841 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:13:17,860 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 04:13:18,041 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 04:13:18,042 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:13:18,043 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:13:18,043 INFO L85 PathProgramCache]: Analyzing trace with hash -1789761043, now seen corresponding path program 1 times [2024-11-16 04:13:18,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:13:18,044 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [724936364] [2024-11-16 04:13:18,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:13:18,044 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:13:18,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:13:18,818 INFO L134 CoverageAnalysis]: Checked inductivity of 1402 backedges. 971 proven. 0 refuted. 0 times theorem prover too weak. 431 trivial. 0 not checked. [2024-11-16 04:13:18,819 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:13:18,819 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [724936364] [2024-11-16 04:13:18,820 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [724936364] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:13:18,820 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:13:18,820 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 04:13:18,820 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [94363372] [2024-11-16 04:13:18,820 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:13:18,821 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:13:18,821 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:13:18,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:13:18,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:13:18,825 INFO L87 Difference]: Start difference. First operand 6935 states and 7295 transitions. Second operand has 3 states, 3 states have (on average 168.0) internal successors, (504), 3 states have internal predecessors, (504), 0 states have call successors, (0), 0 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 04:13:19,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:13:19,578 INFO L93 Difference]: Finished difference Result 15518 states and 16378 transitions. [2024-11-16 04:13:19,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:13:19,579 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 168.0) internal successors, (504), 3 states have internal predecessors, (504), 0 states have call successors, (0), 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 867 [2024-11-16 04:13:19,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:13:19,590 INFO L225 Difference]: With dead ends: 15518 [2024-11-16 04:13:19,590 INFO L226 Difference]: Without dead ends: 8585 [2024-11-16 04:13:19,595 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 04:13:19,596 INFO L432 NwaCegarLoop]: 431 mSDtfsCounter, 220 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 755 mSolverCounterSat, 80 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 220 SdHoareTripleChecker+Valid, 439 SdHoareTripleChecker+Invalid, 835 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 80 IncrementalHoareTripleChecker+Valid, 755 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-16 04:13:19,596 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [220 Valid, 439 Invalid, 835 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [80 Valid, 755 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-16 04:13:19,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8585 states. [2024-11-16 04:13:19,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8585 to 8255. [2024-11-16 04:13:19,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8255 states, 8254 states have (on average 1.0467652047492124) internal successors, (8640), 8254 states have internal predecessors, (8640), 0 states have call successors, (0), 0 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 04:13:19,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8255 states to 8255 states and 8640 transitions. [2024-11-16 04:13:19,665 INFO L78 Accepts]: Start accepts. Automaton has 8255 states and 8640 transitions. Word has length 867 [2024-11-16 04:13:19,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:13:19,666 INFO L471 AbstractCegarLoop]: Abstraction has 8255 states and 8640 transitions. [2024-11-16 04:13:19,667 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 168.0) internal successors, (504), 3 states have internal predecessors, (504), 0 states have call successors, (0), 0 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 04:13:19,667 INFO L276 IsEmpty]: Start isEmpty. Operand 8255 states and 8640 transitions. [2024-11-16 04:13:19,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 915 [2024-11-16 04:13:19,707 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:13:19,707 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, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:13:19,708 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-16 04:13:19,708 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:13:19,708 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:13:19,709 INFO L85 PathProgramCache]: Analyzing trace with hash 329864234, now seen corresponding path program 1 times [2024-11-16 04:13:19,709 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:13:19,709 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [761770705] [2024-11-16 04:13:19,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:13:19,709 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:13:19,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:13:21,334 INFO L134 CoverageAnalysis]: Checked inductivity of 1498 backedges. 775 proven. 0 refuted. 0 times theorem prover too weak. 723 trivial. 0 not checked. [2024-11-16 04:13:21,335 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:13:21,335 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [761770705] [2024-11-16 04:13:21,335 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [761770705] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:13:21,335 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:13:21,335 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 04:13:21,335 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1596652542] [2024-11-16 04:13:21,336 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:13:21,336 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:13:21,336 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:13:21,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:13:21,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:13:21,338 INFO L87 Difference]: Start difference. First operand 8255 states and 8640 transitions. Second operand has 3 states, 3 states have (on average 146.33333333333334) internal successors, (439), 3 states have internal predecessors, (439), 0 states have call successors, (0), 0 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 04:13:22,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:13:22,065 INFO L93 Difference]: Finished difference Result 16178 states and 16946 transitions. [2024-11-16 04:13:22,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:13:22,066 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 146.33333333333334) internal successors, (439), 3 states have internal predecessors, (439), 0 states have call successors, (0), 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 914 [2024-11-16 04:13:22,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:13:22,076 INFO L225 Difference]: With dead ends: 16178 [2024-11-16 04:13:22,076 INFO L226 Difference]: Without dead ends: 8255 [2024-11-16 04:13:22,082 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 8 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 04:13:22,082 INFO L432 NwaCegarLoop]: 374 mSDtfsCounter, 180 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 774 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 180 SdHoareTripleChecker+Valid, 382 SdHoareTripleChecker+Invalid, 792 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 774 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-16 04:13:22,082 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [180 Valid, 382 Invalid, 792 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 774 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-16 04:13:22,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8255 states. [2024-11-16 04:13:22,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8255 to 8255. [2024-11-16 04:13:22,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8255 states, 8254 states have (on average 1.040707535740247) internal successors, (8590), 8254 states have internal predecessors, (8590), 0 states have call successors, (0), 0 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 04:13:22,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8255 states to 8255 states and 8590 transitions. [2024-11-16 04:13:22,148 INFO L78 Accepts]: Start accepts. Automaton has 8255 states and 8590 transitions. Word has length 914 [2024-11-16 04:13:22,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:13:22,149 INFO L471 AbstractCegarLoop]: Abstraction has 8255 states and 8590 transitions. [2024-11-16 04:13:22,149 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 146.33333333333334) internal successors, (439), 3 states have internal predecessors, (439), 0 states have call successors, (0), 0 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 04:13:22,149 INFO L276 IsEmpty]: Start isEmpty. Operand 8255 states and 8590 transitions. [2024-11-16 04:13:22,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1334 [2024-11-16 04:13:22,163 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:13:22,164 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:13:22,164 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-16 04:13:22,164 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:13:22,164 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:13:22,165 INFO L85 PathProgramCache]: Analyzing trace with hash 897824021, now seen corresponding path program 1 times [2024-11-16 04:13:22,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:13:22,165 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1194308122] [2024-11-16 04:13:22,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:13:22,165 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:13:22,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:13:22,960 INFO L134 CoverageAnalysis]: Checked inductivity of 3781 backedges. 2584 proven. 0 refuted. 0 times theorem prover too weak. 1197 trivial. 0 not checked. [2024-11-16 04:13:22,960 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:13:22,961 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1194308122] [2024-11-16 04:13:22,961 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1194308122] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:13:22,961 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:13:22,961 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 04:13:22,961 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [97278843] [2024-11-16 04:13:22,961 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:13:22,962 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:13:22,962 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:13:22,963 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:13:22,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:13:22,963 INFO L87 Difference]: Start difference. First operand 8255 states and 8590 transitions. Second operand has 3 states, 3 states have (on average 202.33333333333334) internal successors, (607), 3 states have internal predecessors, (607), 0 states have call successors, (0), 0 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 04:13:23,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:13:23,659 INFO L93 Difference]: Finished difference Result 16178 states and 16846 transitions. [2024-11-16 04:13:23,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:13:23,659 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 202.33333333333334) internal successors, (607), 3 states have internal predecessors, (607), 0 states have call successors, (0), 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 1333 [2024-11-16 04:13:23,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:13:23,669 INFO L225 Difference]: With dead ends: 16178 [2024-11-16 04:13:23,669 INFO L226 Difference]: Without dead ends: 8255 [2024-11-16 04:13:23,675 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 04:13:23,676 INFO L432 NwaCegarLoop]: 425 mSDtfsCounter, 192 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 757 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 192 SdHoareTripleChecker+Valid, 433 SdHoareTripleChecker+Invalid, 804 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 757 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-16 04:13:23,676 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [192 Valid, 433 Invalid, 804 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 757 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-16 04:13:23,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8255 states. [2024-11-16 04:13:23,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8255 to 8255. [2024-11-16 04:13:23,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8255 states, 8254 states have (on average 1.0341652532105645) internal successors, (8536), 8254 states have internal predecessors, (8536), 0 states have call successors, (0), 0 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 04:13:23,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8255 states to 8255 states and 8536 transitions. [2024-11-16 04:13:23,735 INFO L78 Accepts]: Start accepts. Automaton has 8255 states and 8536 transitions. Word has length 1333 [2024-11-16 04:13:23,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:13:23,736 INFO L471 AbstractCegarLoop]: Abstraction has 8255 states and 8536 transitions. [2024-11-16 04:13:23,736 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 202.33333333333334) internal successors, (607), 3 states have internal predecessors, (607), 0 states have call successors, (0), 0 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 04:13:23,736 INFO L276 IsEmpty]: Start isEmpty. Operand 8255 states and 8536 transitions. [2024-11-16 04:13:23,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1362 [2024-11-16 04:13:23,750 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:13:23,750 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:13:23,750 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-16 04:13:23,751 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:13:23,751 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:13:23,751 INFO L85 PathProgramCache]: Analyzing trace with hash -1814488407, now seen corresponding path program 1 times [2024-11-16 04:13:23,751 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:13:23,751 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1435332136] [2024-11-16 04:13:23,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:13:23,752 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:13:23,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:13:25,073 INFO L134 CoverageAnalysis]: Checked inductivity of 3917 backedges. 2454 proven. 0 refuted. 0 times theorem prover too weak. 1463 trivial. 0 not checked. [2024-11-16 04:13:25,073 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:13:25,073 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1435332136] [2024-11-16 04:13:25,073 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1435332136] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:13:25,073 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:13:25,074 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 04:13:25,074 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [373514937] [2024-11-16 04:13:25,074 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:13:25,075 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:13:25,075 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:13:25,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:13:25,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:13:25,076 INFO L87 Difference]: Start difference. First operand 8255 states and 8536 transitions. Second operand has 3 states, 3 states have (on average 191.66666666666666) internal successors, (575), 3 states have internal predecessors, (575), 0 states have call successors, (0), 0 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 04:13:25,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:13:25,788 INFO L93 Difference]: Finished difference Result 17168 states and 17743 transitions. [2024-11-16 04:13:25,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:13:25,789 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 191.66666666666666) internal successors, (575), 3 states have internal predecessors, (575), 0 states have call successors, (0), 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 1361 [2024-11-16 04:13:25,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:13:25,800 INFO L225 Difference]: With dead ends: 17168 [2024-11-16 04:13:25,800 INFO L226 Difference]: Without dead ends: 9245 [2024-11-16 04:13:25,806 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 04:13:25,806 INFO L432 NwaCegarLoop]: 438 mSDtfsCounter, 224 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 757 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 224 SdHoareTripleChecker+Valid, 446 SdHoareTripleChecker+Invalid, 765 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 757 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-16 04:13:25,807 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [224 Valid, 446 Invalid, 765 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 757 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-16 04:13:25,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9245 states. [2024-11-16 04:13:25,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9245 to 9245. [2024-11-16 04:13:25,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9245 states, 9244 states have (on average 1.0312635222847253) internal successors, (9533), 9244 states have internal predecessors, (9533), 0 states have call successors, (0), 0 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 04:13:25,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9245 states to 9245 states and 9533 transitions. [2024-11-16 04:13:25,884 INFO L78 Accepts]: Start accepts. Automaton has 9245 states and 9533 transitions. Word has length 1361 [2024-11-16 04:13:25,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:13:25,884 INFO L471 AbstractCegarLoop]: Abstraction has 9245 states and 9533 transitions. [2024-11-16 04:13:25,885 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 191.66666666666666) internal successors, (575), 3 states have internal predecessors, (575), 0 states have call successors, (0), 0 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 04:13:25,885 INFO L276 IsEmpty]: Start isEmpty. Operand 9245 states and 9533 transitions. [2024-11-16 04:13:25,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1380 [2024-11-16 04:13:25,898 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:13:25,899 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:13:25,899 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-16 04:13:25,899 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:13:25,900 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:13:25,900 INFO L85 PathProgramCache]: Analyzing trace with hash 1917856648, now seen corresponding path program 1 times [2024-11-16 04:13:25,900 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:13:25,900 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1529602293] [2024-11-16 04:13:25,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:13:25,900 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:13:26,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:13:26,947 INFO L134 CoverageAnalysis]: Checked inductivity of 3926 backedges. 455 proven. 0 refuted. 0 times theorem prover too weak. 3471 trivial. 0 not checked. [2024-11-16 04:13:26,947 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:13:26,947 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1529602293] [2024-11-16 04:13:26,947 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1529602293] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:13:26,947 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:13:26,948 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 04:13:26,948 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2007154508] [2024-11-16 04:13:26,948 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:13:26,949 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:13:26,949 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:13:26,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:13:26,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:13:26,949 INFO L87 Difference]: Start difference. First operand 9245 states and 9533 transitions. Second operand has 3 states, 3 states have (on average 104.66666666666667) internal successors, (314), 3 states have internal predecessors, (314), 0 states have call successors, (0), 0 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 04:13:27,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:13:27,516 INFO L93 Difference]: Finished difference Result 9584 states and 9872 transitions. [2024-11-16 04:13:27,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:13:27,517 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 104.66666666666667) internal successors, (314), 3 states have internal predecessors, (314), 0 states have call successors, (0), 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 1379 [2024-11-16 04:13:27,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:13:27,528 INFO L225 Difference]: With dead ends: 9584 [2024-11-16 04:13:27,529 INFO L226 Difference]: Without dead ends: 9245 [2024-11-16 04:13:27,531 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 04:13:27,532 INFO L432 NwaCegarLoop]: 437 mSDtfsCounter, 0 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 425 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 445 SdHoareTripleChecker+Invalid, 425 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 425 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-16 04:13:27,532 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 445 Invalid, 425 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 425 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-16 04:13:27,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9245 states. [2024-11-16 04:13:27,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9245 to 9245. [2024-11-16 04:13:27,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9245 states, 9244 states have (on average 1.0311553440069234) internal successors, (9532), 9244 states have internal predecessors, (9532), 0 states have call successors, (0), 0 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 04:13:27,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9245 states to 9245 states and 9532 transitions. [2024-11-16 04:13:27,603 INFO L78 Accepts]: Start accepts. Automaton has 9245 states and 9532 transitions. Word has length 1379 [2024-11-16 04:13:27,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:13:27,604 INFO L471 AbstractCegarLoop]: Abstraction has 9245 states and 9532 transitions. [2024-11-16 04:13:27,605 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 104.66666666666667) internal successors, (314), 3 states have internal predecessors, (314), 0 states have call successors, (0), 0 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 04:13:27,605 INFO L276 IsEmpty]: Start isEmpty. Operand 9245 states and 9532 transitions. [2024-11-16 04:13:27,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1651 [2024-11-16 04:13:27,622 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:13:27,623 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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] [2024-11-16 04:13:27,623 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-16 04:13:27,623 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:13:27,623 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:13:27,624 INFO L85 PathProgramCache]: Analyzing trace with hash 314217204, now seen corresponding path program 1 times [2024-11-16 04:13:27,624 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:13:27,624 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1944296261] [2024-11-16 04:13:27,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:13:27,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:13:27,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:13:29,409 INFO L134 CoverageAnalysis]: Checked inductivity of 4919 backedges. 3385 proven. 0 refuted. 0 times theorem prover too weak. 1534 trivial. 0 not checked. [2024-11-16 04:13:29,409 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:13:29,410 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1944296261] [2024-11-16 04:13:29,410 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1944296261] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:13:29,410 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:13:29,410 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 04:13:29,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2133128560] [2024-11-16 04:13:29,411 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:13:29,412 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 04:13:29,412 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:13:29,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 04:13:29,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 04:13:29,413 INFO L87 Difference]: Start difference. First operand 9245 states and 9532 transitions. Second operand has 4 states, 4 states have (on average 194.25) internal successors, (777), 4 states have internal predecessors, (777), 0 states have call successors, (0), 0 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 04:13:30,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:13:30,477 INFO L93 Difference]: Finished difference Result 18166 states and 18738 transitions. [2024-11-16 04:13:30,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 04:13:30,477 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 194.25) internal successors, (777), 4 states have internal predecessors, (777), 0 states have call successors, (0), 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 1650 [2024-11-16 04:13:30,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:13:30,492 INFO L225 Difference]: With dead ends: 18166 [2024-11-16 04:13:30,492 INFO L226 Difference]: Without dead ends: 9253 [2024-11-16 04:13:30,501 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 04:13:30,501 INFO L432 NwaCegarLoop]: 434 mSDtfsCounter, 219 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 1331 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 219 SdHoareTripleChecker+Valid, 451 SdHoareTripleChecker+Invalid, 1356 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 1331 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-16 04:13:30,502 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [219 Valid, 451 Invalid, 1356 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 1331 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-16 04:13:30,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9253 states. [2024-11-16 04:13:30,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9253 to 9245. [2024-11-16 04:13:30,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9245 states, 9244 states have (on average 1.0309389874513197) internal successors, (9530), 9244 states have internal predecessors, (9530), 0 states have call successors, (0), 0 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 04:13:30,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9245 states to 9245 states and 9530 transitions. [2024-11-16 04:13:30,610 INFO L78 Accepts]: Start accepts. Automaton has 9245 states and 9530 transitions. Word has length 1650 [2024-11-16 04:13:30,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:13:30,611 INFO L471 AbstractCegarLoop]: Abstraction has 9245 states and 9530 transitions. [2024-11-16 04:13:30,611 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 194.25) internal successors, (777), 4 states have internal predecessors, (777), 0 states have call successors, (0), 0 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 04:13:30,612 INFO L276 IsEmpty]: Start isEmpty. Operand 9245 states and 9530 transitions. [2024-11-16 04:13:30,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1735 [2024-11-16 04:13:30,649 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:13:30,650 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:13:30,650 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-16 04:13:30,651 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:13:30,651 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:13:30,652 INFO L85 PathProgramCache]: Analyzing trace with hash 2044403361, now seen corresponding path program 1 times [2024-11-16 04:13:30,652 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:13:30,652 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1626298509] [2024-11-16 04:13:30,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:13:30,652 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:13:30,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:13:31,953 INFO L134 CoverageAnalysis]: Checked inductivity of 5431 backedges. 512 proven. 0 refuted. 0 times theorem prover too weak. 4919 trivial. 0 not checked. [2024-11-16 04:13:31,953 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:13:31,954 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1626298509] [2024-11-16 04:13:31,954 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1626298509] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:13:31,954 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:13:31,954 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 04:13:31,954 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1247798527] [2024-11-16 04:13:31,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:13:31,955 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 04:13:31,955 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:13:31,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 04:13:31,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-16 04:13:31,956 INFO L87 Difference]: Start difference. First operand 9245 states and 9530 transitions. Second operand has 6 states, 6 states have (on average 66.33333333333333) internal successors, (398), 6 states have internal predecessors, (398), 0 states have call successors, (0), 0 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 04:13:32,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:13:32,527 INFO L93 Difference]: Finished difference Result 17878 states and 18431 transitions. [2024-11-16 04:13:32,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-16 04:13:32,528 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 66.33333333333333) internal successors, (398), 6 states have internal predecessors, (398), 0 states have call successors, (0), 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 1734 [2024-11-16 04:13:32,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:13:32,537 INFO L225 Difference]: With dead ends: 17878 [2024-11-16 04:13:32,537 INFO L226 Difference]: Without dead ends: 8915 [2024-11-16 04:13:32,542 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-16 04:13:32,542 INFO L432 NwaCegarLoop]: 440 mSDtfsCounter, 9 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 929 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 468 SdHoareTripleChecker+Invalid, 931 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 929 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-16 04:13:32,543 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 468 Invalid, 931 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 929 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-16 04:13:32,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8915 states. [2024-11-16 04:13:32,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8915 to 8915. [2024-11-16 04:13:32,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8915 states, 8914 states have (on average 1.03017724927081) internal successors, (9183), 8914 states have internal predecessors, (9183), 0 states have call successors, (0), 0 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 04:13:32,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8915 states to 8915 states and 9183 transitions. [2024-11-16 04:13:32,597 INFO L78 Accepts]: Start accepts. Automaton has 8915 states and 9183 transitions. Word has length 1734 [2024-11-16 04:13:32,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:13:32,598 INFO L471 AbstractCegarLoop]: Abstraction has 8915 states and 9183 transitions. [2024-11-16 04:13:32,598 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 66.33333333333333) internal successors, (398), 6 states have internal predecessors, (398), 0 states have call successors, (0), 0 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 04:13:32,598 INFO L276 IsEmpty]: Start isEmpty. Operand 8915 states and 9183 transitions. [2024-11-16 04:13:32,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1802 [2024-11-16 04:13:32,616 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:13:32,616 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:13:32,617 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-16 04:13:32,617 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:13:32,617 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:13:32,617 INFO L85 PathProgramCache]: Analyzing trace with hash 140582496, now seen corresponding path program 1 times [2024-11-16 04:13:32,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:13:32,618 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [21373849] [2024-11-16 04:13:32,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:13:32,618 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:13:32,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:13:35,008 INFO L134 CoverageAnalysis]: Checked inductivity of 6665 backedges. 5183 proven. 110 refuted. 0 times theorem prover too weak. 1372 trivial. 0 not checked. [2024-11-16 04:13:35,012 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:13:35,012 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [21373849] [2024-11-16 04:13:35,012 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [21373849] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 04:13:35,012 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [21089198] [2024-11-16 04:13:35,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:13:35,013 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 04:13:35,013 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 04:13:35,014 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 04:13:35,019 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 04:13:35,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:13:35,425 INFO L255 TraceCheckSpWp]: Trace formula consists of 2080 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-16 04:13:35,446 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 04:13:38,011 INFO L134 CoverageAnalysis]: Checked inductivity of 6665 backedges. 2599 proven. 201 refuted. 0 times theorem prover too weak. 3865 trivial. 0 not checked. [2024-11-16 04:13:38,012 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 04:13:41,383 INFO L134 CoverageAnalysis]: Checked inductivity of 6665 backedges. 2599 proven. 201 refuted. 0 times theorem prover too weak. 3865 trivial. 0 not checked. [2024-11-16 04:13:41,383 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [21089198] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-16 04:13:41,383 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-16 04:13:41,384 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 3, 3] total 10 [2024-11-16 04:13:41,385 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2040624513] [2024-11-16 04:13:41,385 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-16 04:13:41,389 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-16 04:13:41,389 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:13:41,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-16 04:13:41,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2024-11-16 04:13:41,390 INFO L87 Difference]: Start difference. First operand 8915 states and 9183 transitions. Second operand has 10 states, 10 states have (on average 182.5) internal successors, (1825), 10 states have internal predecessors, (1825), 0 states have call successors, (0), 0 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 04:13:44,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:13:44,517 INFO L93 Difference]: Finished difference Result 18166 states and 18719 transitions. [2024-11-16 04:13:44,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-16 04:13:44,517 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 182.5) internal successors, (1825), 10 states have internal predecessors, (1825), 0 states have call successors, (0), 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 1801 [2024-11-16 04:13:44,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:13:44,525 INFO L225 Difference]: With dead ends: 18166 [2024-11-16 04:13:44,525 INFO L226 Difference]: Without dead ends: 9583 [2024-11-16 04:13:44,530 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3620 GetRequests, 3606 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=72, Invalid=168, Unknown=0, NotChecked=0, Total=240 [2024-11-16 04:13:44,534 INFO L432 NwaCegarLoop]: 23 mSDtfsCounter, 1327 mSDsluCounter, 100 mSDsCounter, 0 mSdLazyCounter, 6649 mSolverCounterSat, 249 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1327 SdHoareTripleChecker+Valid, 123 SdHoareTripleChecker+Invalid, 6898 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 249 IncrementalHoareTripleChecker+Valid, 6649 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2024-11-16 04:13:44,535 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1327 Valid, 123 Invalid, 6898 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [249 Valid, 6649 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2024-11-16 04:13:44,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9583 states. [2024-11-16 04:13:44,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9583 to 9245. [2024-11-16 04:13:44,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9245 states, 9244 states have (on average 1.028450887061878) internal successors, (9507), 9244 states have internal predecessors, (9507), 0 states have call successors, (0), 0 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 04:13:44,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9245 states to 9245 states and 9507 transitions. [2024-11-16 04:13:44,616 INFO L78 Accepts]: Start accepts. Automaton has 9245 states and 9507 transitions. Word has length 1801 [2024-11-16 04:13:44,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:13:44,617 INFO L471 AbstractCegarLoop]: Abstraction has 9245 states and 9507 transitions. [2024-11-16 04:13:44,617 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 182.5) internal successors, (1825), 10 states have internal predecessors, (1825), 0 states have call successors, (0), 0 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 04:13:44,617 INFO L276 IsEmpty]: Start isEmpty. Operand 9245 states and 9507 transitions. [2024-11-16 04:13:44,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1854 [2024-11-16 04:13:44,637 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:13:44,638 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-16 04:13:44,653 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 04:13:44,838 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,SelfDestructingSolverStorable15 [2024-11-16 04:13:44,839 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:13:44,839 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:13:44,840 INFO L85 PathProgramCache]: Analyzing trace with hash -1209143124, now seen corresponding path program 1 times [2024-11-16 04:13:44,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:13:44,840 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [213273295] [2024-11-16 04:13:44,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:13:44,840 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:13:45,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:13:46,284 INFO L134 CoverageAnalysis]: Checked inductivity of 7339 backedges. 2777 proven. 0 refuted. 0 times theorem prover too weak. 4562 trivial. 0 not checked. [2024-11-16 04:13:46,284 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:13:46,284 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [213273295] [2024-11-16 04:13:46,284 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [213273295] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:13:46,284 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:13:46,284 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 04:13:46,284 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1001335336] [2024-11-16 04:13:46,284 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:13:46,286 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 04:13:46,286 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:13:46,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 04:13:46,287 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-16 04:13:46,287 INFO L87 Difference]: Start difference. First operand 9245 states and 9507 transitions. Second operand has 4 states, 4 states have (on average 169.25) internal successors, (677), 3 states have internal predecessors, (677), 0 states have call successors, (0), 0 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 04:13:47,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:13:47,108 INFO L93 Difference]: Finished difference Result 18488 states and 19015 transitions. [2024-11-16 04:13:47,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:13:47,109 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 169.25) internal successors, (677), 3 states have internal predecessors, (677), 0 states have call successors, (0), 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 1853 [2024-11-16 04:13:47,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:13:47,120 INFO L225 Difference]: With dead ends: 18488 [2024-11-16 04:13:47,120 INFO L226 Difference]: Without dead ends: 9575 [2024-11-16 04:13:47,125 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-16 04:13:47,126 INFO L432 NwaCegarLoop]: 101 mSDtfsCounter, 173 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 1171 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 173 SdHoareTripleChecker+Valid, 115 SdHoareTripleChecker+Invalid, 1174 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1171 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-16 04:13:47,126 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [173 Valid, 115 Invalid, 1174 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1171 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-16 04:13:47,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9575 states. [2024-11-16 04:13:47,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9575 to 9575. [2024-11-16 04:13:47,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9575 states, 9574 states have (on average 1.0276791309797368) internal successors, (9839), 9574 states have internal predecessors, (9839), 0 states have call successors, (0), 0 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 04:13:47,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9575 states to 9575 states and 9839 transitions. [2024-11-16 04:13:47,192 INFO L78 Accepts]: Start accepts. Automaton has 9575 states and 9839 transitions. Word has length 1853 [2024-11-16 04:13:47,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:13:47,193 INFO L471 AbstractCegarLoop]: Abstraction has 9575 states and 9839 transitions. [2024-11-16 04:13:47,193 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 169.25) internal successors, (677), 3 states have internal predecessors, (677), 0 states have call successors, (0), 0 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 04:13:47,193 INFO L276 IsEmpty]: Start isEmpty. Operand 9575 states and 9839 transitions. [2024-11-16 04:13:47,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1917 [2024-11-16 04:13:47,211 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:13:47,211 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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] [2024-11-16 04:13:47,211 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-16 04:13:47,212 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:13:47,212 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:13:47,212 INFO L85 PathProgramCache]: Analyzing trace with hash -56663486, now seen corresponding path program 1 times [2024-11-16 04:13:47,212 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:13:47,212 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1481663021] [2024-11-16 04:13:47,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:13:47,213 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:13:47,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:13:50,198 INFO L134 CoverageAnalysis]: Checked inductivity of 7557 backedges. 3634 proven. 186 refuted. 0 times theorem prover too weak. 3737 trivial. 0 not checked. [2024-11-16 04:13:50,198 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:13:50,199 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1481663021] [2024-11-16 04:13:50,199 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1481663021] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 04:13:50,199 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1800585900] [2024-11-16 04:13:50,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:13:50,199 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 04:13:50,199 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 04:13:50,201 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 04:13:50,201 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 04:13:50,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:13:50,571 INFO L255 TraceCheckSpWp]: Trace formula consists of 2213 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-16 04:13:50,584 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 04:13:50,712 INFO L134 CoverageAnalysis]: Checked inductivity of 7557 backedges. 4468 proven. 0 refuted. 0 times theorem prover too weak. 3089 trivial. 0 not checked. [2024-11-16 04:13:50,712 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 04:13:50,713 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1800585900] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:13:50,713 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 04:13:50,713 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2024-11-16 04:13:50,713 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [670927605] [2024-11-16 04:13:50,713 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:13:50,714 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:13:50,714 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:13:50,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:13:50,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-16 04:13:50,715 INFO L87 Difference]: Start difference. First operand 9575 states and 9839 transitions. Second operand has 3 states, 3 states have (on average 210.33333333333334) internal successors, (631), 3 states have internal predecessors, (631), 0 states have call successors, (0), 0 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 04:13:51,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:13:51,423 INFO L93 Difference]: Finished difference Result 22448 states and 23106 transitions. [2024-11-16 04:13:51,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:13:51,424 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 210.33333333333334) internal successors, (631), 3 states have internal predecessors, (631), 0 states have call successors, (0), 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 1916 [2024-11-16 04:13:51,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:13:51,433 INFO L225 Difference]: With dead ends: 22448 [2024-11-16 04:13:51,433 INFO L226 Difference]: Without dead ends: 13535 [2024-11-16 04:13:51,438 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1925 GetRequests, 1920 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-16 04:13:51,439 INFO L432 NwaCegarLoop]: 430 mSDtfsCounter, 221 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 805 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 221 SdHoareTripleChecker+Valid, 438 SdHoareTripleChecker+Invalid, 858 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 805 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-16 04:13:51,439 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [221 Valid, 438 Invalid, 858 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 805 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-16 04:13:51,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13535 states. [2024-11-16 04:13:51,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13535 to 13205. [2024-11-16 04:13:51,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13205 states, 13204 states have (on average 1.0252953650408967) internal successors, (13538), 13204 states have internal predecessors, (13538), 0 states have call successors, (0), 0 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 04:13:51,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13205 states to 13205 states and 13538 transitions. [2024-11-16 04:13:51,584 INFO L78 Accepts]: Start accepts. Automaton has 13205 states and 13538 transitions. Word has length 1916 [2024-11-16 04:13:51,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:13:51,585 INFO L471 AbstractCegarLoop]: Abstraction has 13205 states and 13538 transitions. [2024-11-16 04:13:51,585 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 210.33333333333334) internal successors, (631), 3 states have internal predecessors, (631), 0 states have call successors, (0), 0 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 04:13:51,585 INFO L276 IsEmpty]: Start isEmpty. Operand 13205 states and 13538 transitions. [2024-11-16 04:13:51,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2010 [2024-11-16 04:13:51,605 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:13:51,606 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 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] [2024-11-16 04:13:51,620 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 04:13:51,806 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-11-16 04:13:51,807 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:13:51,808 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:13:51,808 INFO L85 PathProgramCache]: Analyzing trace with hash -762303037, now seen corresponding path program 1 times [2024-11-16 04:13:51,808 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:13:51,809 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [814641944] [2024-11-16 04:13:51,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:13:51,809 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:13:51,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:13:53,343 INFO L134 CoverageAnalysis]: Checked inductivity of 8177 backedges. 3921 proven. 0 refuted. 0 times theorem prover too weak. 4256 trivial. 0 not checked. [2024-11-16 04:13:53,343 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:13:53,344 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [814641944] [2024-11-16 04:13:53,344 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [814641944] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:13:53,344 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:13:53,344 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 04:13:53,344 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1964010290] [2024-11-16 04:13:53,344 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:13:53,346 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:13:53,347 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:13:53,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:13:53,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:13:53,348 INFO L87 Difference]: Start difference. First operand 13205 states and 13538 transitions. Second operand has 3 states, 3 states have (on average 215.0) internal successors, (645), 3 states have internal predecessors, (645), 0 states have call successors, (0), 0 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 04:13:54,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:13:54,083 INFO L93 Difference]: Finished difference Result 29048 states and 29777 transitions. [2024-11-16 04:13:54,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:13:54,084 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 215.0) internal successors, (645), 3 states have internal predecessors, (645), 0 states have call successors, (0), 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 2009 [2024-11-16 04:13:54,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:13:54,097 INFO L225 Difference]: With dead ends: 29048 [2024-11-16 04:13:54,097 INFO L226 Difference]: Without dead ends: 16505 [2024-11-16 04:13:54,106 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 04:13:54,107 INFO L432 NwaCegarLoop]: 48 mSDtfsCounter, 207 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 773 mSolverCounterSat, 93 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 207 SdHoareTripleChecker+Valid, 55 SdHoareTripleChecker+Invalid, 866 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 93 IncrementalHoareTripleChecker+Valid, 773 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-16 04:13:54,107 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [207 Valid, 55 Invalid, 866 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [93 Valid, 773 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-16 04:13:54,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16505 states. [2024-11-16 04:13:54,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16505 to 14195. [2024-11-16 04:13:54,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14195 states, 14194 states have (on average 1.0250105678455685) internal successors, (14549), 14194 states have internal predecessors, (14549), 0 states have call successors, (0), 0 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 04:13:54,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14195 states to 14195 states and 14549 transitions. [2024-11-16 04:13:54,205 INFO L78 Accepts]: Start accepts. Automaton has 14195 states and 14549 transitions. Word has length 2009 [2024-11-16 04:13:54,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:13:54,205 INFO L471 AbstractCegarLoop]: Abstraction has 14195 states and 14549 transitions. [2024-11-16 04:13:54,205 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 215.0) internal successors, (645), 3 states have internal predecessors, (645), 0 states have call successors, (0), 0 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 04:13:54,206 INFO L276 IsEmpty]: Start isEmpty. Operand 14195 states and 14549 transitions. [2024-11-16 04:13:54,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2035 [2024-11-16 04:13:54,226 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:13:54,226 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 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] [2024-11-16 04:13:54,226 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-16 04:13:54,227 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:13:54,227 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:13:54,227 INFO L85 PathProgramCache]: Analyzing trace with hash 1942474513, now seen corresponding path program 1 times [2024-11-16 04:13:54,227 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:13:54,228 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1754461457] [2024-11-16 04:13:54,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:13:54,228 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:13:54,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:13:56,029 INFO L134 CoverageAnalysis]: Checked inductivity of 8450 backedges. 6032 proven. 91 refuted. 0 times theorem prover too weak. 2327 trivial. 0 not checked. [2024-11-16 04:13:56,030 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:13:56,030 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1754461457] [2024-11-16 04:13:56,030 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1754461457] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 04:13:56,030 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1014138712] [2024-11-16 04:13:56,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:13:56,030 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 04:13:56,030 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 04:13:56,032 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 04:13:56,033 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 04:13:56,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:13:56,473 INFO L255 TraceCheckSpWp]: Trace formula consists of 2332 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-16 04:13:56,485 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 04:13:57,323 INFO L134 CoverageAnalysis]: Checked inductivity of 8450 backedges. 626 proven. 0 refuted. 0 times theorem prover too weak. 7824 trivial. 0 not checked. [2024-11-16 04:13:57,324 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 04:13:57,325 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1014138712] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:13:57,325 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 04:13:57,325 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2024-11-16 04:13:57,325 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1214386927] [2024-11-16 04:13:57,325 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:13:57,327 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:13:57,327 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:13:57,328 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:13:57,328 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-16 04:13:57,328 INFO L87 Difference]: Start difference. First operand 14195 states and 14549 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 04:13:58,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:13:58,303 INFO L93 Difference]: Finished difference Result 28385 states and 29099 transitions. [2024-11-16 04:13:58,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:13:58,303 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 2034 [2024-11-16 04:13:58,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:13:58,304 INFO L225 Difference]: With dead ends: 28385 [2024-11-16 04:13:58,304 INFO L226 Difference]: Without dead ends: 0 [2024-11-16 04:13:58,313 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2039 GetRequests, 2034 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-16 04:13:58,313 INFO L432 NwaCegarLoop]: 432 mSDtfsCounter, 275 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 756 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 275 SdHoareTripleChecker+Valid, 438 SdHoareTripleChecker+Invalid, 760 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 756 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-16 04:13:58,313 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [275 Valid, 438 Invalid, 760 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 756 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-16 04:13:58,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-16 04:13:58,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-16 04:13:58,314 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 04:13:58,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-16 04:13:58,314 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 2034 [2024-11-16 04:13:58,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:13:58,315 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-16 04:13:58,315 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 04:13:58,315 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-16 04:13:58,315 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-16 04:13:58,317 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-16 04:13:58,333 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-16 04:13:58,517 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 04:13:58,520 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 04:13:58,522 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-16 04:13:59,134 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-16 04:13:59,158 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 04:13:59 BoogieIcfgContainer [2024-11-16 04:13:59,158 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-16 04:13:59,158 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-16 04:13:59,158 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-16 04:13:59,159 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-16 04:13:59,159 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 04:13:04" (3/4) ... [2024-11-16 04:13:59,160 INFO L143 WitnessPrinter]: Generating witness for correct program [2024-11-16 04:13:59,178 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2024-11-16 04:13:59,179 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-16 04:13:59,180 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-16 04:13:59,182 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-16 04:13:59,388 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-16 04:13:59,388 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-16 04:13:59,388 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-16 04:13:59,389 INFO L158 Benchmark]: Toolchain (without parser) took 58548.54ms. Allocated memory was 151.0MB in the beginning and 2.2GB in the end (delta: 2.1GB). Free memory was 73.5MB in the beginning and 1.3GB in the end (delta: -1.2GB). Peak memory consumption was 909.2MB. Max. memory is 16.1GB. [2024-11-16 04:13:59,389 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 151.0MB. Free memory is still 100.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-16 04:13:59,389 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1166.35ms. Allocated memory was 151.0MB in the beginning and 222.3MB in the end (delta: 71.3MB). Free memory was 73.4MB in the beginning and 138.9MB in the end (delta: -65.5MB). Peak memory consumption was 18.8MB. Max. memory is 16.1GB. [2024-11-16 04:13:59,390 INFO L158 Benchmark]: Boogie Procedure Inliner took 244.53ms. Allocated memory is still 222.3MB. Free memory was 138.9MB in the beginning and 115.8MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2024-11-16 04:13:59,390 INFO L158 Benchmark]: Boogie Preprocessor took 218.96ms. Allocated memory is still 222.3MB. Free memory was 115.8MB in the beginning and 82.3MB in the end (delta: 33.6MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2024-11-16 04:13:59,390 INFO L158 Benchmark]: IcfgBuilder took 2016.90ms. Allocated memory was 222.3MB in the beginning and 308.3MB in the end (delta: 86.0MB). Free memory was 82.3MB in the beginning and 152.0MB in the end (delta: -69.8MB). Peak memory consumption was 60.9MB. Max. memory is 16.1GB. [2024-11-16 04:13:59,390 INFO L158 Benchmark]: TraceAbstraction took 54665.69ms. Allocated memory was 308.3MB in the beginning and 2.2GB in the end (delta: 1.9GB). Free memory was 151.0MB in the beginning and 1.3GB in the end (delta: -1.1GB). Peak memory consumption was 802.9MB. Max. memory is 16.1GB. [2024-11-16 04:13:59,390 INFO L158 Benchmark]: Witness Printer took 230.11ms. Allocated memory is still 2.2GB. Free memory was 1.3GB in the beginning and 1.3GB in the end (delta: 26.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-16 04:13:59,391 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 151.0MB. Free memory is still 100.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1166.35ms. Allocated memory was 151.0MB in the beginning and 222.3MB in the end (delta: 71.3MB). Free memory was 73.4MB in the beginning and 138.9MB in the end (delta: -65.5MB). Peak memory consumption was 18.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 244.53ms. Allocated memory is still 222.3MB. Free memory was 138.9MB in the beginning and 115.8MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 218.96ms. Allocated memory is still 222.3MB. Free memory was 115.8MB in the beginning and 82.3MB in the end (delta: 33.6MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * IcfgBuilder took 2016.90ms. Allocated memory was 222.3MB in the beginning and 308.3MB in the end (delta: 86.0MB). Free memory was 82.3MB in the beginning and 152.0MB in the end (delta: -69.8MB). Peak memory consumption was 60.9MB. Max. memory is 16.1GB. * TraceAbstraction took 54665.69ms. Allocated memory was 308.3MB in the beginning and 2.2GB in the end (delta: 1.9GB). Free memory was 151.0MB in the beginning and 1.3GB in the end (delta: -1.1GB). Peak memory consumption was 802.9MB. Max. memory is 16.1GB. * Witness Printer took 230.11ms. Allocated memory is still 2.2GB. Free memory was 1.3GB in the beginning and 1.3GB 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: 191]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 399 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 53.9s, OverallIterations: 20, TraceHistogramMax: 12, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.3s, AutomataDifference: 20.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 6199 SdHoareTripleChecker+Valid, 19.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 6199 mSDsluCounter, 5873 SdHoareTripleChecker+Invalid, 16.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 280 mSDsCounter, 2728 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 23012 IncrementalHoareTripleChecker+Invalid, 25740 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2728 mSolverCounterUnsat, 5593 mSDtfsCounter, 23012 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 8099 GetRequests, 8048 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=14195occurred in iteration=19, InterpolantAutomatonStates: 74, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.5s AutomataMinimizationTime, 20 MinimizatonAttempts, 4966 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.7s SsaConstructionTime, 1.7s SatisfiabilityAnalysisTime, 26.4s InterpolantComputationTime, 27063 NumberOfCodeBlocks, 27063 NumberOfCodeBlocksAsserted, 24 NumberOfCheckSat, 28839 ConstructedInterpolants, 57 QuantifiedInterpolants, 71308 SizeOfPredicates, 3 NumberOfNonLiveVariables, 7174 ConjunctsInSsa, 15 ConjunctsInUnsatCore, 25 InterpolantComputations, 19 PerfectInterpolantSequences, 92883/93710 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 1783]: Location Invariant Derived location invariant: null RESULT: Ultimate proved your program to be correct! [2024-11-16 04:13:59,422 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