./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem12_label57.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/Problem12_label57.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 6b5f9be82810a895126d332df54c5a2750e68d4ab931247c71898627df874adb --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 03:57:19,371 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 03:57:19,428 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-16 03:57:19,431 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 03:57:19,432 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 03:57:19,453 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 03:57:19,454 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 03:57:19,455 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 03:57:19,456 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-16 03:57:19,456 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-16 03:57:19,457 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 03:57:19,458 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 03:57:19,458 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 03:57:19,458 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 03:57:19,459 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 03:57:19,459 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 03:57:19,459 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 03:57:19,459 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-16 03:57:19,459 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 03:57:19,460 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-16 03:57:19,460 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 03:57:19,463 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 03:57:19,463 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 03:57:19,463 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 03:57:19,464 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 03:57:19,464 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-16 03:57:19,464 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 03:57:19,464 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 03:57:19,464 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 03:57:19,465 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 03:57:19,465 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-16 03:57:19,465 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 03:57:19,465 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 03:57:19,465 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 03:57:19,466 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 03:57:19,466 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 03:57:19,466 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 03:57:19,467 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 03:57:19,467 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 03:57:19,467 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 03:57:19,467 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 03:57:19,468 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 03:57:19,468 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6b5f9be82810a895126d332df54c5a2750e68d4ab931247c71898627df874adb [2024-11-16 03:57:19,690 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 03:57:19,710 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 03:57:19,712 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 03:57:19,712 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 03:57:19,713 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 03:57:19,714 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem12_label57.c [2024-11-16 03:57:21,007 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 03:57:21,414 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 03:57:21,415 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem12_label57.c [2024-11-16 03:57:21,444 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/72dc68395/29ef2e2f1eb342bd81ba569e0b85e6fc/FLAG45c139a58 [2024-11-16 03:57:21,626 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/72dc68395/29ef2e2f1eb342bd81ba569e0b85e6fc [2024-11-16 03:57:21,627 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 03:57:21,629 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 03:57:21,633 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 03:57:21,633 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 03:57:21,637 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 03:57:21,637 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 03:57:21" (1/1) ... [2024-11-16 03:57:21,638 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@498f4b3c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:57:21, skipping insertion in model container [2024-11-16 03:57:21,638 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 03:57:21" (1/1) ... [2024-11-16 03:57:21,716 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 03:57:21,950 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/Problem12_label57.c[4795,4808] [2024-11-16 03:57:22,692 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 03:57:22,700 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 03:57:22,717 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/Problem12_label57.c[4795,4808] [2024-11-16 03:57:23,094 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 03:57:23,115 INFO L204 MainTranslator]: Completed translation [2024-11-16 03:57:23,115 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:57:23 WrapperNode [2024-11-16 03:57:23,115 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 03:57:23,116 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 03:57:23,116 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 03:57:23,117 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 03:57:23,122 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:57:23" (1/1) ... [2024-11-16 03:57:23,165 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:57:23" (1/1) ... [2024-11-16 03:57:23,547 INFO L138 Inliner]: procedures = 17, calls = 11, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 4760 [2024-11-16 03:57:23,547 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 03:57:23,548 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 03:57:23,548 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 03:57:23,548 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 03:57:23,557 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:57:23" (1/1) ... [2024-11-16 03:57:23,557 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:57:23" (1/1) ... [2024-11-16 03:57:23,607 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:57:23" (1/1) ... [2024-11-16 03:57:23,711 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 03:57:23,711 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:57:23" (1/1) ... [2024-11-16 03:57:23,711 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:57:23" (1/1) ... [2024-11-16 03:57:23,809 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:57:23" (1/1) ... [2024-11-16 03:57:23,822 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:57:23" (1/1) ... [2024-11-16 03:57:23,841 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:57:23" (1/1) ... [2024-11-16 03:57:23,855 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:57:23" (1/1) ... [2024-11-16 03:57:23,888 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 03:57:23,890 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 03:57:23,890 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 03:57:23,891 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 03:57:23,891 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:57:23" (1/1) ... [2024-11-16 03:57:23,896 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 03:57:23,909 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 03:57:23,923 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 03:57:23,981 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 03:57:24,013 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 03:57:24,013 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-16 03:57:24,014 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 03:57:24,014 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 03:57:24,065 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 03:57:24,066 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 03:57:27,094 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L4665: havoc calculate_output3_#t~ret11#1; [2024-11-16 03:57:27,095 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L1696: havoc calculate_output_#t~ret9#1; [2024-11-16 03:57:27,095 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L3175: havoc calculate_output2_#t~ret10#1; [2024-11-16 03:57:27,239 INFO L? ?]: Removed 702 outVars from TransFormulas that were not future-live. [2024-11-16 03:57:27,239 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 03:57:27,267 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 03:57:27,268 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 03:57:27,268 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 03:57:27 BoogieIcfgContainer [2024-11-16 03:57:27,268 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 03:57:27,270 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 03:57:27,270 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 03:57:27,278 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 03:57:27,278 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 03:57:21" (1/3) ... [2024-11-16 03:57:27,279 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a5e46f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 03:57:27, skipping insertion in model container [2024-11-16 03:57:27,279 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:57:23" (2/3) ... [2024-11-16 03:57:27,279 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a5e46f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 03:57:27, skipping insertion in model container [2024-11-16 03:57:27,283 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 03:57:27" (3/3) ... [2024-11-16 03:57:27,285 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem12_label57.c [2024-11-16 03:57:27,306 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 03:57:27,306 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-16 03:57:27,370 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 03:57:27,376 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;@267fc802, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 03:57:27,376 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-16 03:57:27,382 INFO L276 IsEmpty]: Start isEmpty. Operand has 821 states, 819 states have (on average 1.9145299145299146) internal successors, (1568), 820 states have internal predecessors, (1568), 0 states have call successors, (0), 0 states 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 03:57:27,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2024-11-16 03:57:27,389 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:57:27,389 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 03:57:27,390 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:57:27,394 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:57:27,394 INFO L85 PathProgramCache]: Analyzing trace with hash -1531319195, now seen corresponding path program 1 times [2024-11-16 03:57:27,402 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:57:27,402 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1444047702] [2024-11-16 03:57:27,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:57:27,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:57:27,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:57:27,741 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 03:57:27,742 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:57:27,742 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1444047702] [2024-11-16 03:57:27,743 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1444047702] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:57:27,743 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:57:27,743 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:57:27,744 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2033479579] [2024-11-16 03:57:27,745 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:57:27,748 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 03:57:27,749 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:57:27,764 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 03:57:27,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 03:57:27,769 INFO L87 Difference]: Start difference. First operand has 821 states, 819 states have (on average 1.9145299145299146) internal successors, (1568), 820 states have internal predecessors, (1568), 0 states have call successors, (0), 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 4 states, 4 states have (on average 9.75) internal successors, (39), 3 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:57:32,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:57:32,921 INFO L93 Difference]: Finished difference Result 3163 states and 6158 transitions. [2024-11-16 03:57:32,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 03:57:32,925 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 3 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2024-11-16 03:57:32,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:57:32,945 INFO L225 Difference]: With dead ends: 3163 [2024-11-16 03:57:32,946 INFO L226 Difference]: Without dead ends: 2270 [2024-11-16 03:57:32,951 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-16 03:57:32,953 INFO L432 NwaCegarLoop]: 210 mSDtfsCounter, 2424 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 3734 mSolverCounterSat, 1719 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2424 SdHoareTripleChecker+Valid, 241 SdHoareTripleChecker+Invalid, 5453 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1719 IncrementalHoareTripleChecker+Valid, 3734 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2024-11-16 03:57:32,954 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2424 Valid, 241 Invalid, 5453 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1719 Valid, 3734 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2024-11-16 03:57:32,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2270 states. [2024-11-16 03:57:33,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2270 to 2261. [2024-11-16 03:57:33,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2261 states, 2260 states have (on average 1.534070796460177) internal successors, (3467), 2260 states have internal predecessors, (3467), 0 states have call successors, (0), 0 states 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 03:57:33,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2261 states to 2261 states and 3467 transitions. [2024-11-16 03:57:33,054 INFO L78 Accepts]: Start accepts. Automaton has 2261 states and 3467 transitions. Word has length 39 [2024-11-16 03:57:33,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:57:33,055 INFO L471 AbstractCegarLoop]: Abstraction has 2261 states and 3467 transitions. [2024-11-16 03:57:33,055 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 3 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:57:33,055 INFO L276 IsEmpty]: Start isEmpty. Operand 2261 states and 3467 transitions. [2024-11-16 03:57:33,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2024-11-16 03:57:33,063 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:57:33,063 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-16 03:57:33,063 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 03:57:33,064 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:57:33,064 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:57:33,064 INFO L85 PathProgramCache]: Analyzing trace with hash -684282006, now seen corresponding path program 1 times [2024-11-16 03:57:33,064 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:57:33,064 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1980365041] [2024-11-16 03:57:33,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:57:33,065 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:57:33,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:57:33,441 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 139 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-16 03:57:33,441 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:57:33,441 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1980365041] [2024-11-16 03:57:33,442 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1980365041] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:57:33,442 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:57:33,442 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:57:33,442 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [423150328] [2024-11-16 03:57:33,442 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:57:33,444 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 03:57:33,445 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:57:33,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 03:57:33,446 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-16 03:57:33,447 INFO L87 Difference]: Start difference. First operand 2261 states and 3467 transitions. Second operand has 4 states, 4 states have (on average 45.25) internal successors, (181), 3 states have internal predecessors, (181), 0 states have call successors, (0), 0 states 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 03:57:36,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:57:36,931 INFO L93 Difference]: Finished difference Result 6062 states and 9675 transitions. [2024-11-16 03:57:36,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 03:57:36,932 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 45.25) internal successors, (181), 3 states have internal predecessors, (181), 0 states have call successors, (0), 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 181 [2024-11-16 03:57:36,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:57:36,948 INFO L225 Difference]: With dead ends: 6062 [2024-11-16 03:57:36,948 INFO L226 Difference]: Without dead ends: 3765 [2024-11-16 03:57:36,952 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 03:57:36,953 INFO L432 NwaCegarLoop]: 697 mSDtfsCounter, 688 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 3804 mSolverCounterSat, 664 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 688 SdHoareTripleChecker+Valid, 719 SdHoareTripleChecker+Invalid, 4468 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 664 IncrementalHoareTripleChecker+Valid, 3804 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2024-11-16 03:57:36,954 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [688 Valid, 719 Invalid, 4468 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [664 Valid, 3804 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2024-11-16 03:57:36,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3765 states. [2024-11-16 03:57:36,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3765 to 3765. [2024-11-16 03:57:36,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3765 states, 3764 states have (on average 1.3403294367693943) internal successors, (5045), 3764 states have internal predecessors, (5045), 0 states have call successors, (0), 0 states 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 03:57:36,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3765 states to 3765 states and 5045 transitions. [2024-11-16 03:57:36,999 INFO L78 Accepts]: Start accepts. Automaton has 3765 states and 5045 transitions. Word has length 181 [2024-11-16 03:57:37,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:57:37,000 INFO L471 AbstractCegarLoop]: Abstraction has 3765 states and 5045 transitions. [2024-11-16 03:57:37,001 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 45.25) internal successors, (181), 3 states have internal predecessors, (181), 0 states have call successors, (0), 0 states 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 03:57:37,001 INFO L276 IsEmpty]: Start isEmpty. Operand 3765 states and 5045 transitions. [2024-11-16 03:57:37,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 252 [2024-11-16 03:57:37,003 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:57:37,004 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-16 03:57:37,004 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-16 03:57:37,004 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:57:37,006 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:57:37,007 INFO L85 PathProgramCache]: Analyzing trace with hash 1744573113, now seen corresponding path program 1 times [2024-11-16 03:57:37,007 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:57:37,007 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1197345435] [2024-11-16 03:57:37,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:57:37,007 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:57:37,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:57:37,435 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 71 proven. 55 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-16 03:57:37,437 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:57:37,437 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1197345435] [2024-11-16 03:57:37,437 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1197345435] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 03:57:37,437 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1134304888] [2024-11-16 03:57:37,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:57:37,438 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 03:57:37,438 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 03:57:37,442 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 03:57:37,443 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 03:57:37,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:57:37,559 INFO L255 TraceCheckSpWp]: Trace formula consists of 355 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-16 03:57:37,569 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 03:57:37,853 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 71 proven. 0 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2024-11-16 03:57:37,855 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 03:57:37,857 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1134304888] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:57:37,857 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 03:57:37,857 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 4 [2024-11-16 03:57:37,857 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [987369365] [2024-11-16 03:57:37,857 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:57:37,859 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:57:37,859 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:57:37,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:57:37,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-16 03:57:37,861 INFO L87 Difference]: Start difference. First operand 3765 states and 5045 transitions. Second operand has 3 states, 3 states have (on average 61.0) internal successors, (183), 2 states have internal predecessors, (183), 0 states have call successors, (0), 0 states 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 03:57:40,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:57:40,449 INFO L93 Difference]: Finished difference Result 10536 states and 14372 transitions. [2024-11-16 03:57:40,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:57:40,450 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 61.0) internal successors, (183), 2 states have internal predecessors, (183), 0 states have call successors, (0), 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 251 [2024-11-16 03:57:40,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:57:40,466 INFO L225 Difference]: With dead ends: 10536 [2024-11-16 03:57:40,466 INFO L226 Difference]: Without dead ends: 6773 [2024-11-16 03:57:40,470 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 253 GetRequests, 250 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 03:57:40,474 INFO L432 NwaCegarLoop]: 482 mSDtfsCounter, 670 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 1989 mSolverCounterSat, 845 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 670 SdHoareTripleChecker+Valid, 489 SdHoareTripleChecker+Invalid, 2834 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 845 IncrementalHoareTripleChecker+Valid, 1989 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-11-16 03:57:40,476 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [670 Valid, 489 Invalid, 2834 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [845 Valid, 1989 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-11-16 03:57:40,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6773 states. [2024-11-16 03:57:40,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6773 to 6021. [2024-11-16 03:57:40,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6021 states, 6020 states have (on average 1.281063122923588) internal successors, (7712), 6020 states have internal predecessors, (7712), 0 states have call successors, (0), 0 states 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 03:57:40,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6021 states to 6021 states and 7712 transitions. [2024-11-16 03:57:40,573 INFO L78 Accepts]: Start accepts. Automaton has 6021 states and 7712 transitions. Word has length 251 [2024-11-16 03:57:40,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:57:40,574 INFO L471 AbstractCegarLoop]: Abstraction has 6021 states and 7712 transitions. [2024-11-16 03:57:40,574 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 61.0) internal successors, (183), 2 states have internal predecessors, (183), 0 states have call successors, (0), 0 states 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 03:57:40,575 INFO L276 IsEmpty]: Start isEmpty. Operand 6021 states and 7712 transitions. [2024-11-16 03:57:40,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 265 [2024-11-16 03:57:40,578 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:57:40,578 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-16 03:57:40,591 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 03:57:40,779 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 03:57:40,780 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:57:40,780 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:57:40,781 INFO L85 PathProgramCache]: Analyzing trace with hash -1699239083, now seen corresponding path program 1 times [2024-11-16 03:57:40,781 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:57:40,782 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [716138267] [2024-11-16 03:57:40,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:57:40,782 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:57:40,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:57:41,146 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 71 proven. 55 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2024-11-16 03:57:41,146 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:57:41,146 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [716138267] [2024-11-16 03:57:41,146 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [716138267] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 03:57:41,146 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1821248739] [2024-11-16 03:57:41,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:57:41,146 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 03:57:41,146 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 03:57:41,149 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 03:57:41,154 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 03:57:41,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:57:41,238 INFO L255 TraceCheckSpWp]: Trace formula consists of 368 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-16 03:57:41,240 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 03:57:41,392 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 153 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 03:57:41,396 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 03:57:41,396 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1821248739] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:57:41,396 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 03:57:41,397 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2024-11-16 03:57:41,397 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1610107260] [2024-11-16 03:57:41,397 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:57:41,397 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:57:41,397 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:57:41,398 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:57:41,398 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-16 03:57:41,398 INFO L87 Difference]: Start difference. First operand 6021 states and 7712 transitions. Second operand has 3 states, 3 states have (on average 88.0) internal successors, (264), 3 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:57:44,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:57:44,123 INFO L93 Difference]: Finished difference Result 15048 states and 19956 transitions. [2024-11-16 03:57:44,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:57:44,124 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 88.0) internal successors, (264), 3 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 264 [2024-11-16 03:57:44,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:57:44,145 INFO L225 Difference]: With dead ends: 15048 [2024-11-16 03:57:44,145 INFO L226 Difference]: Without dead ends: 9029 [2024-11-16 03:57:44,151 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 266 GetRequests, 263 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 03:57:44,152 INFO L432 NwaCegarLoop]: 305 mSDtfsCounter, 909 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2072 mSolverCounterSat, 703 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 909 SdHoareTripleChecker+Valid, 312 SdHoareTripleChecker+Invalid, 2775 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 703 IncrementalHoareTripleChecker+Valid, 2072 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2024-11-16 03:57:44,153 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [909 Valid, 312 Invalid, 2775 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [703 Valid, 2072 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2024-11-16 03:57:44,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9029 states. [2024-11-16 03:57:44,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9029 to 9029. [2024-11-16 03:57:44,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9029 states, 9028 states have (on average 1.2653965440850687) internal successors, (11424), 9028 states have internal predecessors, (11424), 0 states have call successors, (0), 0 states 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 03:57:44,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9029 states to 9029 states and 11424 transitions. [2024-11-16 03:57:44,250 INFO L78 Accepts]: Start accepts. Automaton has 9029 states and 11424 transitions. Word has length 264 [2024-11-16 03:57:44,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:57:44,251 INFO L471 AbstractCegarLoop]: Abstraction has 9029 states and 11424 transitions. [2024-11-16 03:57:44,251 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 88.0) internal successors, (264), 3 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:57:44,251 INFO L276 IsEmpty]: Start isEmpty. Operand 9029 states and 11424 transitions. [2024-11-16 03:57:44,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 282 [2024-11-16 03:57:44,253 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:57:44,253 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-16 03:57:44,267 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 03:57:44,457 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,SelfDestructingSolverStorable3 [2024-11-16 03:57:44,458 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:57:44,458 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:57:44,459 INFO L85 PathProgramCache]: Analyzing trace with hash 1952314724, now seen corresponding path program 1 times [2024-11-16 03:57:44,459 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:57:44,459 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2047766589] [2024-11-16 03:57:44,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:57:44,459 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:57:44,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:57:44,607 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 71 proven. 0 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2024-11-16 03:57:44,608 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:57:44,608 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2047766589] [2024-11-16 03:57:44,608 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2047766589] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:57:44,608 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:57:44,609 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:57:44,609 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [842939445] [2024-11-16 03:57:44,609 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:57:44,609 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:57:44,609 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:57:44,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:57:44,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:57:44,610 INFO L87 Difference]: Start difference. First operand 9029 states and 11424 transitions. Second operand has 3 states, 3 states have (on average 61.0) internal successors, (183), 3 states have internal predecessors, (183), 0 states have call successors, (0), 0 states 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 03:57:47,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:57:47,142 INFO L93 Difference]: Finished difference Result 21816 states and 27858 transitions. [2024-11-16 03:57:47,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:57:47,143 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 61.0) internal successors, (183), 3 states have internal predecessors, (183), 0 states have call successors, (0), 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 281 [2024-11-16 03:57:47,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:57:47,168 INFO L225 Difference]: With dead ends: 21816 [2024-11-16 03:57:47,168 INFO L226 Difference]: Without dead ends: 12789 [2024-11-16 03:57:47,177 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 03:57:47,178 INFO L432 NwaCegarLoop]: 1211 mSDtfsCounter, 738 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 2254 mSolverCounterSat, 525 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 738 SdHoareTripleChecker+Valid, 1221 SdHoareTripleChecker+Invalid, 2779 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 525 IncrementalHoareTripleChecker+Valid, 2254 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-11-16 03:57:47,178 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [738 Valid, 1221 Invalid, 2779 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [525 Valid, 2254 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-11-16 03:57:47,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12789 states. [2024-11-16 03:57:47,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12789 to 12789. [2024-11-16 03:57:47,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12789 states, 12788 states have (on average 1.183609634031905) internal successors, (15136), 12788 states have internal predecessors, (15136), 0 states have call successors, (0), 0 states 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 03:57:47,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12789 states to 12789 states and 15136 transitions. [2024-11-16 03:57:47,333 INFO L78 Accepts]: Start accepts. Automaton has 12789 states and 15136 transitions. Word has length 281 [2024-11-16 03:57:47,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:57:47,334 INFO L471 AbstractCegarLoop]: Abstraction has 12789 states and 15136 transitions. [2024-11-16 03:57:47,334 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 61.0) internal successors, (183), 3 states have internal predecessors, (183), 0 states have call successors, (0), 0 states 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 03:57:47,335 INFO L276 IsEmpty]: Start isEmpty. Operand 12789 states and 15136 transitions. [2024-11-16 03:57:47,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 370 [2024-11-16 03:57:47,344 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:57:47,345 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:57:47,345 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-16 03:57:47,345 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:57:47,346 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:57:47,346 INFO L85 PathProgramCache]: Analyzing trace with hash -1452292543, now seen corresponding path program 1 times [2024-11-16 03:57:47,347 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:57:47,347 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [857163565] [2024-11-16 03:57:47,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:57:47,347 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:57:47,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:57:47,648 INFO L134 CoverageAnalysis]: Checked inductivity of 363 backedges. 327 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-11-16 03:57:47,649 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:57:47,649 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [857163565] [2024-11-16 03:57:47,649 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [857163565] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:57:47,649 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:57:47,649 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:57:47,649 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [817817321] [2024-11-16 03:57:47,649 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:57:47,650 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:57:47,650 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:57:47,650 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:57:47,650 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:57:47,651 INFO L87 Difference]: Start difference. First operand 12789 states and 15136 transitions. Second operand has 3 states, 3 states have (on average 111.33333333333333) internal successors, (334), 3 states have internal predecessors, (334), 0 states have call successors, (0), 0 states 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 03:57:50,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:57:50,415 INFO L93 Difference]: Finished difference Result 36104 states and 43112 transitions. [2024-11-16 03:57:50,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:57:50,416 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 111.33333333333333) internal successors, (334), 3 states have internal predecessors, (334), 0 states have call successors, (0), 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 369 [2024-11-16 03:57:50,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:57:50,452 INFO L225 Difference]: With dead ends: 36104 [2024-11-16 03:57:50,452 INFO L226 Difference]: Without dead ends: 23317 [2024-11-16 03:57:50,466 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 03:57:50,467 INFO L432 NwaCegarLoop]: 1218 mSDtfsCounter, 639 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 2607 mSolverCounterSat, 397 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 639 SdHoareTripleChecker+Valid, 1228 SdHoareTripleChecker+Invalid, 3004 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 397 IncrementalHoareTripleChecker+Valid, 2607 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2024-11-16 03:57:50,467 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [639 Valid, 1228 Invalid, 3004 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [397 Valid, 2607 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2024-11-16 03:57:50,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23317 states. [2024-11-16 03:57:50,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23317 to 22565. [2024-11-16 03:57:50,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22565 states, 22564 states have (on average 1.171778053536607) internal successors, (26440), 22564 states have internal predecessors, (26440), 0 states have call successors, (0), 0 states 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 03:57:50,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22565 states to 22565 states and 26440 transitions. [2024-11-16 03:57:50,688 INFO L78 Accepts]: Start accepts. Automaton has 22565 states and 26440 transitions. Word has length 369 [2024-11-16 03:57:50,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:57:50,689 INFO L471 AbstractCegarLoop]: Abstraction has 22565 states and 26440 transitions. [2024-11-16 03:57:50,689 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 111.33333333333333) internal successors, (334), 3 states have internal predecessors, (334), 0 states have call successors, (0), 0 states 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 03:57:50,689 INFO L276 IsEmpty]: Start isEmpty. Operand 22565 states and 26440 transitions. [2024-11-16 03:57:50,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 374 [2024-11-16 03:57:50,692 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:57:50,694 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:57:50,694 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-16 03:57:50,694 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:57:50,695 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:57:50,695 INFO L85 PathProgramCache]: Analyzing trace with hash -1211021173, now seen corresponding path program 1 times [2024-11-16 03:57:50,695 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:57:50,695 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1358342602] [2024-11-16 03:57:50,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:57:50,695 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:57:50,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:57:51,023 INFO L134 CoverageAnalysis]: Checked inductivity of 363 backedges. 107 proven. 0 refuted. 0 times theorem prover too weak. 256 trivial. 0 not checked. [2024-11-16 03:57:51,024 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:57:51,024 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1358342602] [2024-11-16 03:57:51,024 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1358342602] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:57:51,024 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:57:51,024 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:57:51,024 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1228505809] [2024-11-16 03:57:51,024 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:57:51,025 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:57:51,025 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:57:51,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:57:51,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:57:51,025 INFO L87 Difference]: Start difference. First operand 22565 states and 26440 transitions. Second operand has 3 states, 3 states have (on average 62.666666666666664) internal successors, (188), 3 states have internal predecessors, (188), 0 states have call successors, (0), 0 states 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 03:57:53,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:57:53,360 INFO L93 Difference]: Finished difference Result 51144 states and 59678 transitions. [2024-11-16 03:57:53,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:57:53,360 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 62.666666666666664) internal successors, (188), 3 states have internal predecessors, (188), 0 states have call successors, (0), 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 373 [2024-11-16 03:57:53,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:57:53,398 INFO L225 Difference]: With dead ends: 51144 [2024-11-16 03:57:53,399 INFO L226 Difference]: Without dead ends: 25573 [2024-11-16 03:57:53,419 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 03:57:53,420 INFO L432 NwaCegarLoop]: 1382 mSDtfsCounter, 730 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 1997 mSolverCounterSat, 398 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 730 SdHoareTripleChecker+Valid, 1392 SdHoareTripleChecker+Invalid, 2395 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 398 IncrementalHoareTripleChecker+Valid, 1997 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-11-16 03:57:53,420 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [730 Valid, 1392 Invalid, 2395 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [398 Valid, 1997 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-11-16 03:57:53,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25573 states. [2024-11-16 03:57:53,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25573 to 25573. [2024-11-16 03:57:53,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25573 states, 25572 states have (on average 1.1245111841076176) internal successors, (28756), 25572 states have internal predecessors, (28756), 0 states have call successors, (0), 0 states 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 03:57:53,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25573 states to 25573 states and 28756 transitions. [2024-11-16 03:57:53,699 INFO L78 Accepts]: Start accepts. Automaton has 25573 states and 28756 transitions. Word has length 373 [2024-11-16 03:57:53,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:57:53,700 INFO L471 AbstractCegarLoop]: Abstraction has 25573 states and 28756 transitions. [2024-11-16 03:57:53,700 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 62.666666666666664) internal successors, (188), 3 states have internal predecessors, (188), 0 states have call successors, (0), 0 states 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 03:57:53,700 INFO L276 IsEmpty]: Start isEmpty. Operand 25573 states and 28756 transitions. [2024-11-16 03:57:53,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 405 [2024-11-16 03:57:53,704 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:57:53,705 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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] [2024-11-16 03:57:53,705 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-16 03:57:53,705 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:57:53,705 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:57:53,705 INFO L85 PathProgramCache]: Analyzing trace with hash 1678966595, now seen corresponding path program 1 times [2024-11-16 03:57:53,706 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:57:53,706 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1652082543] [2024-11-16 03:57:53,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:57:53,706 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:57:53,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:57:53,864 INFO L134 CoverageAnalysis]: Checked inductivity of 574 backedges. 459 proven. 0 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked. [2024-11-16 03:57:53,865 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:57:53,865 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1652082543] [2024-11-16 03:57:53,865 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1652082543] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:57:53,865 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:57:53,865 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:57:53,865 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [825420240] [2024-11-16 03:57:53,865 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:57:53,865 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:57:53,866 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:57:53,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:57:53,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:57:53,866 INFO L87 Difference]: Start difference. First operand 25573 states and 28756 transitions. Second operand has 3 states, 3 states have (on average 97.0) internal successors, (291), 3 states have internal predecessors, (291), 0 states have call successors, (0), 0 states 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 03:57:56,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:57:56,311 INFO L93 Difference]: Finished difference Result 51144 states and 57510 transitions. [2024-11-16 03:57:56,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:57:56,312 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 97.0) internal successors, (291), 3 states have internal predecessors, (291), 0 states have call successors, (0), 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 404 [2024-11-16 03:57:56,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:57:56,341 INFO L225 Difference]: With dead ends: 51144 [2024-11-16 03:57:56,342 INFO L226 Difference]: Without dead ends: 25573 [2024-11-16 03:57:56,361 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 03:57:56,362 INFO L432 NwaCegarLoop]: 199 mSDtfsCounter, 723 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2148 mSolverCounterSat, 455 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 723 SdHoareTripleChecker+Valid, 206 SdHoareTripleChecker+Invalid, 2603 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 455 IncrementalHoareTripleChecker+Valid, 2148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-11-16 03:57:56,362 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [723 Valid, 206 Invalid, 2603 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [455 Valid, 2148 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-11-16 03:57:56,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25573 states. [2024-11-16 03:57:56,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25573 to 25573. [2024-11-16 03:57:56,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25573 states, 25572 states have (on average 1.1157124980447364) internal successors, (28531), 25572 states have internal predecessors, (28531), 0 states have call successors, (0), 0 states 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 03:57:56,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25573 states to 25573 states and 28531 transitions. [2024-11-16 03:57:56,844 INFO L78 Accepts]: Start accepts. Automaton has 25573 states and 28531 transitions. Word has length 404 [2024-11-16 03:57:56,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:57:56,845 INFO L471 AbstractCegarLoop]: Abstraction has 25573 states and 28531 transitions. [2024-11-16 03:57:56,845 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 97.0) internal successors, (291), 3 states have internal predecessors, (291), 0 states have call successors, (0), 0 states 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 03:57:56,846 INFO L276 IsEmpty]: Start isEmpty. Operand 25573 states and 28531 transitions. [2024-11-16 03:57:56,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 416 [2024-11-16 03:57:56,849 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:57:56,850 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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] [2024-11-16 03:57:56,850 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-16 03:57:56,850 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:57:56,851 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:57:56,853 INFO L85 PathProgramCache]: Analyzing trace with hash 134998400, now seen corresponding path program 1 times [2024-11-16 03:57:56,853 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:57:56,853 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1204273544] [2024-11-16 03:57:56,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:57:56,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:57:56,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:57:57,030 INFO L134 CoverageAnalysis]: Checked inductivity of 581 backedges. 459 proven. 0 refuted. 0 times theorem prover too weak. 122 trivial. 0 not checked. [2024-11-16 03:57:57,030 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:57:57,030 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1204273544] [2024-11-16 03:57:57,031 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1204273544] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:57:57,031 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:57:57,031 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:57:57,031 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [154486058] [2024-11-16 03:57:57,031 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:57:57,031 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:57:57,032 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:57:57,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:57:57,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:57:57,032 INFO L87 Difference]: Start difference. First operand 25573 states and 28531 transitions. Second operand has 3 states, 3 states have (on average 98.33333333333333) internal successors, (295), 3 states have internal predecessors, (295), 0 states have call successors, (0), 0 states 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 03:57:59,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:57:59,209 INFO L93 Difference]: Finished difference Result 60920 states and 67724 transitions. [2024-11-16 03:57:59,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:57:59,209 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 98.33333333333333) internal successors, (295), 3 states have internal predecessors, (295), 0 states have call successors, (0), 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 415 [2024-11-16 03:57:59,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:57:59,240 INFO L225 Difference]: With dead ends: 60920 [2024-11-16 03:57:59,240 INFO L226 Difference]: Without dead ends: 35349 [2024-11-16 03:57:59,258 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 03:57:59,259 INFO L432 NwaCegarLoop]: 1177 mSDtfsCounter, 704 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 2089 mSolverCounterSat, 336 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 704 SdHoareTripleChecker+Valid, 1187 SdHoareTripleChecker+Invalid, 2425 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 336 IncrementalHoareTripleChecker+Valid, 2089 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-16 03:57:59,259 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [704 Valid, 1187 Invalid, 2425 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [336 Valid, 2089 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-16 03:57:59,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35349 states. [2024-11-16 03:57:59,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35349 to 34597. [2024-11-16 03:57:59,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34597 states, 34596 states have (on average 1.0881893860561915) internal successors, (37647), 34596 states have internal predecessors, (37647), 0 states have call successors, (0), 0 states 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 03:57:59,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34597 states to 34597 states and 37647 transitions. [2024-11-16 03:57:59,610 INFO L78 Accepts]: Start accepts. Automaton has 34597 states and 37647 transitions. Word has length 415 [2024-11-16 03:57:59,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:57:59,610 INFO L471 AbstractCegarLoop]: Abstraction has 34597 states and 37647 transitions. [2024-11-16 03:57:59,610 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 98.33333333333333) internal successors, (295), 3 states have internal predecessors, (295), 0 states have call successors, (0), 0 states 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 03:57:59,611 INFO L276 IsEmpty]: Start isEmpty. Operand 34597 states and 37647 transitions. [2024-11-16 03:57:59,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 425 [2024-11-16 03:57:59,615 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:57:59,615 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 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] [2024-11-16 03:57:59,615 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-16 03:57:59,616 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:57:59,616 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:57:59,616 INFO L85 PathProgramCache]: Analyzing trace with hash -854066031, now seen corresponding path program 1 times [2024-11-16 03:57:59,616 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:57:59,616 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1815447136] [2024-11-16 03:57:59,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:57:59,616 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:57:59,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:57:59,771 INFO L134 CoverageAnalysis]: Checked inductivity of 594 backedges. 459 proven. 0 refuted. 0 times theorem prover too weak. 135 trivial. 0 not checked. [2024-11-16 03:57:59,771 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:57:59,771 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1815447136] [2024-11-16 03:57:59,772 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1815447136] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:57:59,772 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:57:59,772 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:57:59,772 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [840570553] [2024-11-16 03:57:59,772 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:57:59,772 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:57:59,773 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:57:59,773 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:57:59,773 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:57:59,773 INFO L87 Difference]: Start difference. First operand 34597 states and 37647 transitions. Second operand has 3 states, 3 states have (on average 97.0) internal successors, (291), 3 states have internal predecessors, (291), 0 states have call successors, (0), 0 states 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 03:58:01,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:58:01,758 INFO L93 Difference]: Finished difference Result 70696 states and 76819 transitions. [2024-11-16 03:58:01,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:58:01,759 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 97.0) internal successors, (291), 3 states have internal predecessors, (291), 0 states have call successors, (0), 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 424 [2024-11-16 03:58:01,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:58:01,796 INFO L225 Difference]: With dead ends: 70696 [2024-11-16 03:58:01,797 INFO L226 Difference]: Without dead ends: 35349 [2024-11-16 03:58:01,822 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 03:58:01,823 INFO L432 NwaCegarLoop]: 992 mSDtfsCounter, 782 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 2010 mSolverCounterSat, 464 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 782 SdHoareTripleChecker+Valid, 1000 SdHoareTripleChecker+Invalid, 2474 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 464 IncrementalHoareTripleChecker+Valid, 2010 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-16 03:58:01,824 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [782 Valid, 1000 Invalid, 2474 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [464 Valid, 2010 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-16 03:58:01,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35349 states. [2024-11-16 03:58:02,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35349 to 34597. [2024-11-16 03:58:02,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34597 states, 34596 states have (on average 1.0746329055382124) internal successors, (37178), 34596 states have internal predecessors, (37178), 0 states have call successors, (0), 0 states 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 03:58:02,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34597 states to 34597 states and 37178 transitions. [2024-11-16 03:58:02,079 INFO L78 Accepts]: Start accepts. Automaton has 34597 states and 37178 transitions. Word has length 424 [2024-11-16 03:58:02,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:58:02,079 INFO L471 AbstractCegarLoop]: Abstraction has 34597 states and 37178 transitions. [2024-11-16 03:58:02,079 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 97.0) internal successors, (291), 3 states have internal predecessors, (291), 0 states have call successors, (0), 0 states 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 03:58:02,079 INFO L276 IsEmpty]: Start isEmpty. Operand 34597 states and 37178 transitions. [2024-11-16 03:58:02,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 443 [2024-11-16 03:58:02,084 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:58:02,085 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-16 03:58:02,085 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-16 03:58:02,085 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:58:02,086 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:58:02,086 INFO L85 PathProgramCache]: Analyzing trace with hash 76138660, now seen corresponding path program 1 times [2024-11-16 03:58:02,086 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:58:02,086 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [23179902] [2024-11-16 03:58:02,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:58:02,086 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:58:02,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:58:02,471 INFO L134 CoverageAnalysis]: Checked inductivity of 608 backedges. 427 proven. 0 refuted. 0 times theorem prover too weak. 181 trivial. 0 not checked. [2024-11-16 03:58:02,471 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:58:02,471 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [23179902] [2024-11-16 03:58:02,471 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [23179902] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:58:02,471 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:58:02,472 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:58:02,472 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [272577490] [2024-11-16 03:58:02,472 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:58:02,472 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:58:02,472 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:58:02,473 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:58:02,473 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:58:02,473 INFO L87 Difference]: Start difference. First operand 34597 states and 37178 transitions. Second operand has 3 states, 3 states have (on average 87.66666666666667) internal successors, (263), 3 states have internal predecessors, (263), 0 states have call successors, (0), 0 states 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 03:58:04,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:58:04,955 INFO L93 Difference]: Finished difference Result 89496 states and 96546 transitions. [2024-11-16 03:58:04,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:58:04,955 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 87.66666666666667) internal successors, (263), 3 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 442 [2024-11-16 03:58:04,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:58:05,017 INFO L225 Difference]: With dead ends: 89496 [2024-11-16 03:58:05,018 INFO L226 Difference]: Without dead ends: 55653 [2024-11-16 03:58:05,043 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 03:58:05,044 INFO L432 NwaCegarLoop]: 1205 mSDtfsCounter, 686 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 2129 mSolverCounterSat, 432 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 686 SdHoareTripleChecker+Valid, 1213 SdHoareTripleChecker+Invalid, 2561 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 432 IncrementalHoareTripleChecker+Valid, 2129 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-11-16 03:58:05,044 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [686 Valid, 1213 Invalid, 2561 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [432 Valid, 2129 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-11-16 03:58:05,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55653 states. [2024-11-16 03:58:05,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55653 to 53397. [2024-11-16 03:58:05,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53397 states, 53396 states have (on average 1.0615214622818188) internal successors, (56681), 53396 states have internal predecessors, (56681), 0 states have call successors, (0), 0 states 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 03:58:05,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53397 states to 53397 states and 56681 transitions. [2024-11-16 03:58:05,516 INFO L78 Accepts]: Start accepts. Automaton has 53397 states and 56681 transitions. Word has length 442 [2024-11-16 03:58:05,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:58:05,517 INFO L471 AbstractCegarLoop]: Abstraction has 53397 states and 56681 transitions. [2024-11-16 03:58:05,517 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 87.66666666666667) internal successors, (263), 3 states have internal predecessors, (263), 0 states have call successors, (0), 0 states 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 03:58:05,517 INFO L276 IsEmpty]: Start isEmpty. Operand 53397 states and 56681 transitions. [2024-11-16 03:58:05,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 557 [2024-11-16 03:58:05,526 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:58:05,526 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-16 03:58:05,527 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-16 03:58:05,527 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:58:05,527 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:58:05,527 INFO L85 PathProgramCache]: Analyzing trace with hash -1671772735, now seen corresponding path program 1 times [2024-11-16 03:58:05,527 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:58:05,528 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1482765584] [2024-11-16 03:58:05,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:58:05,528 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:58:05,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:58:05,911 INFO L134 CoverageAnalysis]: Checked inductivity of 746 backedges. 611 proven. 0 refuted. 0 times theorem prover too weak. 135 trivial. 0 not checked. [2024-11-16 03:58:05,911 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:58:05,911 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1482765584] [2024-11-16 03:58:05,911 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1482765584] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:58:05,911 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:58:05,911 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:58:05,912 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1394854438] [2024-11-16 03:58:05,912 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:58:05,912 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:58:05,912 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:58:05,913 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:58:05,913 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:58:05,913 INFO L87 Difference]: Start difference. First operand 53397 states and 56681 transitions. Second operand has 3 states, 3 states have (on average 141.0) internal successors, (423), 3 states have internal predecessors, (423), 0 states have call successors, (0), 0 states 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 03:58:08,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:58:08,201 INFO L93 Difference]: Finished difference Result 106792 states and 113358 transitions. [2024-11-16 03:58:08,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:58:08,202 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 141.0) internal successors, (423), 3 states have internal predecessors, (423), 0 states have call successors, (0), 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 556 [2024-11-16 03:58:08,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:58:08,259 INFO L225 Difference]: With dead ends: 106792 [2024-11-16 03:58:08,260 INFO L226 Difference]: Without dead ends: 54149 [2024-11-16 03:58:08,291 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 03:58:08,291 INFO L432 NwaCegarLoop]: 184 mSDtfsCounter, 791 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 1994 mSolverCounterSat, 361 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 791 SdHoareTripleChecker+Valid, 191 SdHoareTripleChecker+Invalid, 2355 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 361 IncrementalHoareTripleChecker+Valid, 1994 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-16 03:58:08,292 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [791 Valid, 191 Invalid, 2355 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [361 Valid, 1994 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-16 03:58:08,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54149 states. [2024-11-16 03:58:08,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54149 to 52645. [2024-11-16 03:58:08,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52645 states, 52644 states have (on average 1.047393815059646) internal successors, (55139), 52644 states have internal predecessors, (55139), 0 states have call successors, (0), 0 states 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 03:58:08,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52645 states to 52645 states and 55139 transitions. [2024-11-16 03:58:08,724 INFO L78 Accepts]: Start accepts. Automaton has 52645 states and 55139 transitions. Word has length 556 [2024-11-16 03:58:08,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:58:08,724 INFO L471 AbstractCegarLoop]: Abstraction has 52645 states and 55139 transitions. [2024-11-16 03:58:08,724 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 141.0) internal successors, (423), 3 states have internal predecessors, (423), 0 states have call successors, (0), 0 states 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 03:58:08,724 INFO L276 IsEmpty]: Start isEmpty. Operand 52645 states and 55139 transitions. [2024-11-16 03:58:08,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 579 [2024-11-16 03:58:08,733 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:58:08,734 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:58:08,734 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-16 03:58:08,734 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:58:08,734 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:58:08,735 INFO L85 PathProgramCache]: Analyzing trace with hash 1312883146, now seen corresponding path program 1 times [2024-11-16 03:58:08,735 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:58:08,735 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1487051470] [2024-11-16 03:58:08,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:58:08,735 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:58:09,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:58:09,463 INFO L134 CoverageAnalysis]: Checked inductivity of 786 backedges. 633 proven. 0 refuted. 0 times theorem prover too weak. 153 trivial. 0 not checked. [2024-11-16 03:58:09,463 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:58:09,463 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1487051470] [2024-11-16 03:58:09,464 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1487051470] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:58:09,464 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:58:09,464 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:58:09,464 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1841400317] [2024-11-16 03:58:09,464 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:58:09,464 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:58:09,464 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:58:09,465 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:58:09,465 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:58:09,465 INFO L87 Difference]: Start difference. First operand 52645 states and 55139 transitions. Second operand has 3 states, 3 states have (on average 142.33333333333334) internal successors, (427), 3 states have internal predecessors, (427), 0 states have call successors, (0), 0 states 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 03:58:11,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:58:11,965 INFO L93 Difference]: Finished difference Result 114312 states and 120057 transitions. [2024-11-16 03:58:11,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:58:11,966 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 142.33333333333334) internal successors, (427), 3 states have internal predecessors, (427), 0 states have call successors, (0), 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 578 [2024-11-16 03:58:11,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:58:12,027 INFO L225 Difference]: With dead ends: 114312 [2024-11-16 03:58:12,027 INFO L226 Difference]: Without dead ends: 62421 [2024-11-16 03:58:12,046 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 03:58:12,047 INFO L432 NwaCegarLoop]: 1162 mSDtfsCounter, 680 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 2069 mSolverCounterSat, 280 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 680 SdHoareTripleChecker+Valid, 1172 SdHoareTripleChecker+Invalid, 2349 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 280 IncrementalHoareTripleChecker+Valid, 2069 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-11-16 03:58:12,047 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [680 Valid, 1172 Invalid, 2349 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [280 Valid, 2069 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-11-16 03:58:12,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62421 states. [2024-11-16 03:58:12,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62421 to 60917. [2024-11-16 03:58:12,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60917 states, 60916 states have (on average 1.04069538380721) internal successors, (63395), 60916 states have internal predecessors, (63395), 0 states have call successors, (0), 0 states 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 03:58:12,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60917 states to 60917 states and 63395 transitions. [2024-11-16 03:58:12,827 INFO L78 Accepts]: Start accepts. Automaton has 60917 states and 63395 transitions. Word has length 578 [2024-11-16 03:58:12,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:58:12,827 INFO L471 AbstractCegarLoop]: Abstraction has 60917 states and 63395 transitions. [2024-11-16 03:58:12,827 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 142.33333333333334) internal successors, (427), 3 states have internal predecessors, (427), 0 states have call successors, (0), 0 states 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 03:58:12,828 INFO L276 IsEmpty]: Start isEmpty. Operand 60917 states and 63395 transitions. [2024-11-16 03:58:12,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 607 [2024-11-16 03:58:12,843 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:58:12,843 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, 5, 5, 5, 5, 5, 5, 5, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 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 03:58:12,844 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-16 03:58:12,844 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:58:12,844 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:58:12,845 INFO L85 PathProgramCache]: Analyzing trace with hash 745142473, now seen corresponding path program 1 times [2024-11-16 03:58:12,845 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:58:12,845 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1763657120] [2024-11-16 03:58:12,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:58:12,845 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:58:12,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:58:13,263 INFO L134 CoverageAnalysis]: Checked inductivity of 1052 backedges. 406 proven. 0 refuted. 0 times theorem prover too weak. 646 trivial. 0 not checked. [2024-11-16 03:58:13,264 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:58:13,264 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1763657120] [2024-11-16 03:58:13,264 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1763657120] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:58:13,264 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:58:13,264 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:58:13,264 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1869945160] [2024-11-16 03:58:13,264 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:58:13,265 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:58:13,265 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:58:13,265 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:58:13,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:58:13,266 INFO L87 Difference]: Start difference. First operand 60917 states and 63395 transitions. Second operand has 3 states, 3 states have (on average 78.0) internal successors, (234), 3 states have internal predecessors, (234), 0 states have call successors, (0), 0 states 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 03:58:15,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:58:15,675 INFO L93 Difference]: Finished difference Result 122584 states and 127628 transitions. [2024-11-16 03:58:15,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:58:15,675 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 78.0) internal successors, (234), 3 states have internal predecessors, (234), 0 states have call successors, (0), 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 606 [2024-11-16 03:58:15,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:58:15,734 INFO L225 Difference]: With dead ends: 122584 [2024-11-16 03:58:15,735 INFO L226 Difference]: Without dead ends: 62421 [2024-11-16 03:58:15,752 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 03:58:15,754 INFO L432 NwaCegarLoop]: 1033 mSDtfsCounter, 793 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 2020 mSolverCounterSat, 254 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 793 SdHoareTripleChecker+Valid, 1043 SdHoareTripleChecker+Invalid, 2274 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 254 IncrementalHoareTripleChecker+Valid, 2020 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-11-16 03:58:15,754 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [793 Valid, 1043 Invalid, 2274 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [254 Valid, 2020 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-11-16 03:58:15,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62421 states. [2024-11-16 03:58:16,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62421 to 62421. [2024-11-16 03:58:16,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62421 states, 62420 states have (on average 1.0368792053828901) internal successors, (64722), 62420 states have internal predecessors, (64722), 0 states have call successors, (0), 0 states 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 03:58:16,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62421 states to 62421 states and 64722 transitions. [2024-11-16 03:58:16,444 INFO L78 Accepts]: Start accepts. Automaton has 62421 states and 64722 transitions. Word has length 606 [2024-11-16 03:58:16,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:58:16,444 INFO L471 AbstractCegarLoop]: Abstraction has 62421 states and 64722 transitions. [2024-11-16 03:58:16,445 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 78.0) internal successors, (234), 3 states have internal predecessors, (234), 0 states have call successors, (0), 0 states 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 03:58:16,445 INFO L276 IsEmpty]: Start isEmpty. Operand 62421 states and 64722 transitions. [2024-11-16 03:58:16,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 613 [2024-11-16 03:58:16,459 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:58:16,460 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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] [2024-11-16 03:58:16,460 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-16 03:58:16,461 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:58:16,461 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:58:16,461 INFO L85 PathProgramCache]: Analyzing trace with hash -481523787, now seen corresponding path program 1 times [2024-11-16 03:58:16,461 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:58:16,461 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1977852881] [2024-11-16 03:58:16,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:58:16,462 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:58:16,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:58:17,349 INFO L134 CoverageAnalysis]: Checked inductivity of 828 backedges. 705 proven. 16 refuted. 0 times theorem prover too weak. 107 trivial. 0 not checked. [2024-11-16 03:58:17,349 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:58:17,350 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1977852881] [2024-11-16 03:58:17,350 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1977852881] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 03:58:17,350 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [171978034] [2024-11-16 03:58:17,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:58:17,350 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 03:58:17,350 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 03:58:17,352 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 03:58:17,352 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 03:58:17,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:58:17,504 INFO L255 TraceCheckSpWp]: Trace formula consists of 763 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-16 03:58:17,508 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 03:58:17,697 INFO L134 CoverageAnalysis]: Checked inductivity of 828 backedges. 528 proven. 0 refuted. 0 times theorem prover too weak. 300 trivial. 0 not checked. [2024-11-16 03:58:17,698 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 03:58:17,698 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [171978034] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:58:17,698 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 03:58:17,698 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2024-11-16 03:58:17,698 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [174902021] [2024-11-16 03:58:17,698 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:58:17,699 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:58:17,699 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:58:17,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:58:17,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-16 03:58:17,702 INFO L87 Difference]: Start difference. First operand 62421 states and 64722 transitions. Second operand has 3 states, 3 states have (on average 131.0) internal successors, (393), 3 states have internal predecessors, (393), 0 states have call successors, (0), 0 states 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 03:58:19,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:58:19,833 INFO L93 Difference]: Finished difference Result 124088 states and 128685 transitions. [2024-11-16 03:58:19,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:58:19,834 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 131.0) internal successors, (393), 3 states have internal predecessors, (393), 0 states have call successors, (0), 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 612 [2024-11-16 03:58:19,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:58:19,891 INFO L225 Difference]: With dead ends: 124088 [2024-11-16 03:58:19,891 INFO L226 Difference]: Without dead ends: 62421 [2024-11-16 03:58:19,923 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 615 GetRequests, 611 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-16 03:58:19,924 INFO L432 NwaCegarLoop]: 1198 mSDtfsCounter, 603 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 1931 mSolverCounterSat, 273 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 603 SdHoareTripleChecker+Valid, 1208 SdHoareTripleChecker+Invalid, 2204 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 273 IncrementalHoareTripleChecker+Valid, 1931 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-16 03:58:19,924 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [603 Valid, 1208 Invalid, 2204 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [273 Valid, 1931 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-16 03:58:19,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62421 states. [2024-11-16 03:58:20,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62421 to 60165. [2024-11-16 03:58:20,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60165 states, 60164 states have (on average 1.028455554816834) internal successors, (61876), 60164 states have internal predecessors, (61876), 0 states have call successors, (0), 0 states 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 03:58:20,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60165 states to 60165 states and 61876 transitions. [2024-11-16 03:58:20,829 INFO L78 Accepts]: Start accepts. Automaton has 60165 states and 61876 transitions. Word has length 612 [2024-11-16 03:58:20,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:58:20,830 INFO L471 AbstractCegarLoop]: Abstraction has 60165 states and 61876 transitions. [2024-11-16 03:58:20,830 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 131.0) internal successors, (393), 3 states have internal predecessors, (393), 0 states have call successors, (0), 0 states 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 03:58:20,830 INFO L276 IsEmpty]: Start isEmpty. Operand 60165 states and 61876 transitions. [2024-11-16 03:58:20,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 702 [2024-11-16 03:58:20,852 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:58:20,852 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-16 03:58:20,866 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 03:58:21,052 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 03:58:21,057 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:58:21,057 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:58:21,058 INFO L85 PathProgramCache]: Analyzing trace with hash -343599173, now seen corresponding path program 1 times [2024-11-16 03:58:21,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:58:21,058 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1634881235] [2024-11-16 03:58:21,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:58:21,058 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:58:21,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:58:21,510 INFO L134 CoverageAnalysis]: Checked inductivity of 875 backedges. 559 proven. 0 refuted. 0 times theorem prover too weak. 316 trivial. 0 not checked. [2024-11-16 03:58:21,511 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:58:21,511 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1634881235] [2024-11-16 03:58:21,511 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1634881235] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:58:21,511 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:58:21,511 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:58:21,511 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [402040105] [2024-11-16 03:58:21,511 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:58:21,512 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:58:21,512 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:58:21,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:58:21,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:58:21,513 INFO L87 Difference]: Start difference. First operand 60165 states and 61876 transitions. Second operand has 3 states, 3 states have (on average 158.0) internal successors, (474), 3 states have internal predecessors, (474), 0 states have call successors, (0), 0 states 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 03:58:23,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:58:23,853 INFO L93 Difference]: Finished difference Result 147397 states and 151868 transitions. [2024-11-16 03:58:23,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:58:23,853 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 158.0) internal successors, (474), 3 states have internal predecessors, (474), 0 states have call successors, (0), 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 701 [2024-11-16 03:58:23,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:58:23,854 INFO L225 Difference]: With dead ends: 147397 [2024-11-16 03:58:23,854 INFO L226 Difference]: Without dead ends: 0 [2024-11-16 03:58:24,008 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 03:58:24,008 INFO L432 NwaCegarLoop]: 320 mSDtfsCounter, 597 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2111 mSolverCounterSat, 495 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 597 SdHoareTripleChecker+Valid, 327 SdHoareTripleChecker+Invalid, 2606 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 495 IncrementalHoareTripleChecker+Valid, 2111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-16 03:58:24,008 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [597 Valid, 327 Invalid, 2606 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [495 Valid, 2111 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-16 03:58:24,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-16 03:58:24,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-16 03:58:24,009 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 03:58:24,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-16 03:58:24,010 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 701 [2024-11-16 03:58:24,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:58:24,010 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-16 03:58:24,010 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 158.0) internal successors, (474), 3 states have internal predecessors, (474), 0 states have call successors, (0), 0 states 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 03:58:24,010 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-16 03:58:24,010 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-16 03:58:24,019 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-16 03:58:24,019 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-16 03:58:24,022 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 03:58:24,023 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-16 03:58:26,312 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-16 03:58:26,322 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 03:58:26 BoogieIcfgContainer [2024-11-16 03:58:26,322 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-16 03:58:26,322 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-16 03:58:26,322 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-16 03:58:26,323 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-16 03:58:26,323 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 03:57:27" (3/4) ... [2024-11-16 03:58:26,325 INFO L143 WitnessPrinter]: Generating witness for correct program [2024-11-16 03:58:26,374 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2024-11-16 03:58:26,378 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-16 03:58:26,382 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-16 03:58:26,386 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-16 03:58:26,642 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-16 03:58:26,642 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-16 03:58:26,642 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-16 03:58:26,643 INFO L158 Benchmark]: Toolchain (without parser) took 65014.62ms. Allocated memory was 169.9MB in the beginning and 7.6GB in the end (delta: 7.5GB). Free memory was 84.2MB in the beginning and 6.6GB in the end (delta: -6.5GB). Peak memory consumption was 958.9MB. Max. memory is 16.1GB. [2024-11-16 03:58:26,643 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 169.9MB. Free memory is still 138.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-16 03:58:26,644 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1483.02ms. Allocated memory was 169.9MB in the beginning and 228.6MB in the end (delta: 58.7MB). Free memory was 84.2MB in the beginning and 136.2MB in the end (delta: -51.9MB). Peak memory consumption was 72.8MB. Max. memory is 16.1GB. [2024-11-16 03:58:26,644 INFO L158 Benchmark]: Boogie Procedure Inliner took 431.25ms. Allocated memory was 228.6MB in the beginning and 457.2MB in the end (delta: 228.6MB). Free memory was 136.2MB in the beginning and 352.3MB in the end (delta: -216.2MB). Peak memory consumption was 111.0MB. Max. memory is 16.1GB. [2024-11-16 03:58:26,645 INFO L158 Benchmark]: Boogie Preprocessor took 341.15ms. Allocated memory is still 457.2MB. Free memory was 352.3MB in the beginning and 245.4MB in the end (delta: 107.0MB). Peak memory consumption was 104.9MB. Max. memory is 16.1GB. [2024-11-16 03:58:26,645 INFO L158 Benchmark]: IcfgBuilder took 3378.70ms. Allocated memory was 457.2MB in the beginning and 876.6MB in the end (delta: 419.4MB). Free memory was 245.4MB in the beginning and 469.4MB in the end (delta: -224.0MB). Peak memory consumption was 202.8MB. Max. memory is 16.1GB. [2024-11-16 03:58:26,645 INFO L158 Benchmark]: TraceAbstraction took 59051.88ms. Allocated memory was 876.6MB in the beginning and 7.6GB in the end (delta: 6.7GB). Free memory was 468.3MB in the beginning and 6.6GB in the end (delta: -6.2GB). Peak memory consumption was 1.0GB. Max. memory is 16.1GB. [2024-11-16 03:58:26,647 INFO L158 Benchmark]: Witness Printer took 320.18ms. Allocated memory is still 7.6GB. Free memory was 6.6GB in the beginning and 6.6GB in the end (delta: 69.2MB). Peak memory consumption was 67.1MB. Max. memory is 16.1GB. [2024-11-16 03:58:26,648 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 169.9MB. Free memory is still 138.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1483.02ms. Allocated memory was 169.9MB in the beginning and 228.6MB in the end (delta: 58.7MB). Free memory was 84.2MB in the beginning and 136.2MB in the end (delta: -51.9MB). Peak memory consumption was 72.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 431.25ms. Allocated memory was 228.6MB in the beginning and 457.2MB in the end (delta: 228.6MB). Free memory was 136.2MB in the beginning and 352.3MB in the end (delta: -216.2MB). Peak memory consumption was 111.0MB. Max. memory is 16.1GB. * Boogie Preprocessor took 341.15ms. Allocated memory is still 457.2MB. Free memory was 352.3MB in the beginning and 245.4MB in the end (delta: 107.0MB). Peak memory consumption was 104.9MB. Max. memory is 16.1GB. * IcfgBuilder took 3378.70ms. Allocated memory was 457.2MB in the beginning and 876.6MB in the end (delta: 419.4MB). Free memory was 245.4MB in the beginning and 469.4MB in the end (delta: -224.0MB). Peak memory consumption was 202.8MB. Max. memory is 16.1GB. * TraceAbstraction took 59051.88ms. Allocated memory was 876.6MB in the beginning and 7.6GB in the end (delta: 6.7GB). Free memory was 468.3MB in the beginning and 6.6GB in the end (delta: -6.2GB). Peak memory consumption was 1.0GB. Max. memory is 16.1GB. * Witness Printer took 320.18ms. Allocated memory is still 7.6GB. Free memory was 6.6GB in the beginning and 6.6GB in the end (delta: 69.2MB). Peak memory consumption was 67.1MB. 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: 133]: 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, 821 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 56.7s, OverallIterations: 16, TraceHistogramMax: 6, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 43.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 13157 SdHoareTripleChecker+Valid, 39.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 13157 mSDsluCounter, 13149 SdHoareTripleChecker+Invalid, 32.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 174 mSDsCounter, 8601 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 36958 IncrementalHoareTripleChecker+Invalid, 45559 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 8601 mSolverCounterUnsat, 12975 mSDtfsCounter, 36958 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1174 GetRequests, 1148 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=62421occurred in iteration=14, InterpolantAutomatonStates: 51, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 5.3s AutomataMinimizationTime, 16 MinimizatonAttempts, 10537 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.4s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 5.3s InterpolantComputationTime, 7623 NumberOfCodeBlocks, 7623 NumberOfCodeBlocksAsserted, 19 NumberOfCheckSat, 7604 ConstructedInterpolants, 0 QuantifiedInterpolants, 16448 SizeOfPredicates, 0 NumberOfNonLiveVariables, 1486 ConjunctsInSsa, 6 ConjunctsInUnsatCore, 19 InterpolantComputations, 16 PerfectInterpolantSequences, 8968/9094 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: 4828]: Location Invariant Derived location invariant: null RESULT: Ultimate proved your program to be correct! [2024-11-16 03:58:26,673 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE