./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem18_label37.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 023d838f 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/Problem18_label37.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 c20add5320ecb48a715753f8d6aae1a5bde7095cf7169e6e2e411e7f18574917 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-023d838-m [2024-11-09 19:59:31,556 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 19:59:31,609 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-09 19:59:31,613 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 19:59:31,613 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 19:59:31,634 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 19:59:31,634 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 19:59:31,635 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 19:59:31,635 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-09 19:59:31,635 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-09 19:59:31,636 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 19:59:31,637 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 19:59:31,637 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 19:59:31,638 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 19:59:31,638 INFO L153 SettingsManager]: * Use SBE=true [2024-11-09 19:59:31,639 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 19:59:31,639 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 19:59:31,639 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 19:59:31,639 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 19:59:31,640 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 19:59:31,640 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 19:59:31,643 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 19:59:31,644 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 19:59:31,644 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 19:59:31,644 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 19:59:31,644 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 19:59:31,644 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 19:59:31,644 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 19:59:31,645 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-09 19:59:31,645 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 19:59:31,645 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 19:59:31,645 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 19:59:31,645 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 19:59:31,645 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 19:59:31,645 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 19:59:31,646 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 19:59:31,646 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-09 19:59:31,646 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 19:59:31,646 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 19:59:31,646 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-09 19:59:31,646 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-09 19:59:31,647 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 19:59:31,647 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c20add5320ecb48a715753f8d6aae1a5bde7095cf7169e6e2e411e7f18574917 [2024-11-09 19:59:31,844 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 19:59:31,862 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 19:59:31,866 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 19:59:31,867 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 19:59:31,867 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 19:59:31,868 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem18_label37.c [2024-11-09 19:59:33,014 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 19:59:33,307 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 19:59:33,308 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem18_label37.c [2024-11-09 19:59:33,329 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7d45048de/f7e792bac4a3444e9377139f827415d2/FLAG08197e803 [2024-11-09 19:59:33,585 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7d45048de/f7e792bac4a3444e9377139f827415d2 [2024-11-09 19:59:33,587 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 19:59:33,588 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 19:59:33,588 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 19:59:33,588 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 19:59:33,593 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 19:59:33,594 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 07:59:33" (1/1) ... [2024-11-09 19:59:33,594 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ab6fcea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:59:33, skipping insertion in model container [2024-11-09 19:59:33,594 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 07:59:33" (1/1) ... [2024-11-09 19:59:33,653 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 19:59:33,849 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/Problem18_label37.c[5877,5890] [2024-11-09 19:59:34,222 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 19:59:34,230 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 19:59:34,252 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/Problem18_label37.c[5877,5890] [2024-11-09 19:59:34,501 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 19:59:34,546 INFO L204 MainTranslator]: Completed translation [2024-11-09 19:59:34,548 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:59:34 WrapperNode [2024-11-09 19:59:34,548 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 19:59:34,549 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 19:59:34,549 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 19:59:34,549 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 19:59:34,554 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:59:34" (1/1) ... [2024-11-09 19:59:34,594 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:59:34" (1/1) ... [2024-11-09 19:59:34,709 INFO L138 Inliner]: procedures = 16, calls = 10, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 4134 [2024-11-09 19:59:34,709 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 19:59:34,711 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 19:59:34,711 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 19:59:34,711 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 19:59:34,718 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:59:34" (1/1) ... [2024-11-09 19:59:34,719 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:59:34" (1/1) ... [2024-11-09 19:59:34,741 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:59:34" (1/1) ... [2024-11-09 19:59:34,874 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]. [2024-11-09 19:59:34,875 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:59:34" (1/1) ... [2024-11-09 19:59:34,875 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:59:34" (1/1) ... [2024-11-09 19:59:34,938 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:59:34" (1/1) ... [2024-11-09 19:59:34,953 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:59:34" (1/1) ... [2024-11-09 19:59:34,972 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:59:34" (1/1) ... [2024-11-09 19:59:34,983 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:59:34" (1/1) ... [2024-11-09 19:59:35,002 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 19:59:35,004 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-09 19:59:35,005 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-09 19:59:35,005 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-09 19:59:35,006 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:59:34" (1/1) ... [2024-11-09 19:59:35,011 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 19:59:35,019 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 19:59:35,034 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) [2024-11-09 19:59:35,036 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 [2024-11-09 19:59:35,070 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 19:59:35,070 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-09 19:59:35,070 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 19:59:35,071 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 19:59:35,133 INFO L256 CfgBuilder]: Building ICFG [2024-11-09 19:59:35,134 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 19:59:38,213 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L1647: havoc calculate_output_#t~ret8#1; [2024-11-09 19:59:38,214 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L3060: havoc calculate_output2_#t~ret9#1; [2024-11-09 19:59:38,433 INFO L? ?]: Removed 1698 outVars from TransFormulas that were not future-live. [2024-11-09 19:59:38,434 INFO L307 CfgBuilder]: Performing block encoding [2024-11-09 19:59:38,464 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 19:59:38,465 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-09 19:59:38,465 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.11 07:59:38 BoogieIcfgContainer [2024-11-09 19:59:38,465 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-09 19:59:38,467 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 19:59:38,467 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 19:59:38,469 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 19:59:38,469 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 07:59:33" (1/3) ... [2024-11-09 19:59:38,470 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5fc4e5bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 07:59:38, skipping insertion in model container [2024-11-09 19:59:38,470 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:59:34" (2/3) ... [2024-11-09 19:59:38,471 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5fc4e5bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 07:59:38, skipping insertion in model container [2024-11-09 19:59:38,471 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.11 07:59:38" (3/3) ... [2024-11-09 19:59:38,472 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem18_label37.c [2024-11-09 19:59:38,483 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 19:59:38,483 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 19:59:38,539 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 19:59:38,544 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;@270fc62d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 19:59:38,544 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-09 19:59:38,549 INFO L276 IsEmpty]: Start isEmpty. Operand has 760 states, 758 states have (on average 2.728232189973615) internal successors, (2068), 759 states have internal predecessors, (2068), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:59:38,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-11-09 19:59:38,555 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:59:38,555 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:59:38,556 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:59:38,559 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:59:38,559 INFO L85 PathProgramCache]: Analyzing trace with hash 1256291053, now seen corresponding path program 1 times [2024-11-09 19:59:38,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:59:38,566 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1699958063] [2024-11-09 19:59:38,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:59:38,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:59:38,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:59:38,881 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 19:59:38,881 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:59:38,882 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1699958063] [2024-11-09 19:59:38,882 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1699958063] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:59:38,882 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:59:38,882 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 19:59:38,884 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2066869188] [2024-11-09 19:59:38,885 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:59:38,888 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 19:59:38,888 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:59:38,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 19:59:38,904 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 19:59:38,908 INFO L87 Difference]: Start difference. First operand has 760 states, 758 states have (on average 2.728232189973615) internal successors, (2068), 759 states have internal predecessors, (2068), 0 states have call successors, (0), 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 14.5) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:59:44,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:59:44,169 INFO L93 Difference]: Finished difference Result 2918 states and 8153 transitions. [2024-11-09 19:59:44,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 19:59:44,172 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 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 58 [2024-11-09 19:59:44,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:59:44,192 INFO L225 Difference]: With dead ends: 2918 [2024-11-09 19:59:44,192 INFO L226 Difference]: Without dead ends: 2085 [2024-11-09 19:59:44,196 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-09 19:59:44,199 INFO L432 NwaCegarLoop]: 144 mSDtfsCounter, 3987 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 5253 mSolverCounterSat, 1773 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3987 SdHoareTripleChecker+Valid, 175 SdHoareTripleChecker+Invalid, 7026 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1773 IncrementalHoareTripleChecker+Valid, 5253 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2024-11-09 19:59:44,203 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3987 Valid, 175 Invalid, 7026 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1773 Valid, 5253 Invalid, 0 Unknown, 0 Unchecked, 5.1s Time] [2024-11-09 19:59:44,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2085 states. [2024-11-09 19:59:44,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2085 to 2078. [2024-11-09 19:59:44,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2078 states, 2077 states have (on average 2.452094366875301) internal successors, (5093), 2077 states have internal predecessors, (5093), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:59:44,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2078 states to 2078 states and 5093 transitions. [2024-11-09 19:59:44,285 INFO L78 Accepts]: Start accepts. Automaton has 2078 states and 5093 transitions. Word has length 58 [2024-11-09 19:59:44,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:59:44,285 INFO L471 AbstractCegarLoop]: Abstraction has 2078 states and 5093 transitions. [2024-11-09 19:59:44,286 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:59:44,286 INFO L276 IsEmpty]: Start isEmpty. Operand 2078 states and 5093 transitions. [2024-11-09 19:59:44,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2024-11-09 19:59:44,290 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:59:44,290 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:59:44,291 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 19:59:44,291 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:59:44,291 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:59:44,291 INFO L85 PathProgramCache]: Analyzing trace with hash -2079893477, now seen corresponding path program 1 times [2024-11-09 19:59:44,292 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:59:44,292 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1448002563] [2024-11-09 19:59:44,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:59:44,292 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:59:44,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:59:44,719 INFO L134 CoverageAnalysis]: Checked inductivity of 176 backedges. 121 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2024-11-09 19:59:44,721 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:59:44,721 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1448002563] [2024-11-09 19:59:44,722 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1448002563] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:59:44,722 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:59:44,722 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 19:59:44,722 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [891705631] [2024-11-09 19:59:44,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:59:44,723 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 19:59:44,725 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:59:44,725 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 19:59:44,726 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 19:59:44,726 INFO L87 Difference]: Start difference. First operand 2078 states and 5093 transitions. Second operand has 4 states, 4 states have (on average 41.5) internal successors, (166), 3 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:59:49,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:59:49,399 INFO L93 Difference]: Finished difference Result 6918 states and 17101 transitions. [2024-11-09 19:59:49,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 19:59:49,403 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 41.5) internal successors, (166), 3 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 220 [2024-11-09 19:59:49,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:59:49,416 INFO L225 Difference]: With dead ends: 6918 [2024-11-09 19:59:49,416 INFO L226 Difference]: Without dead ends: 4842 [2024-11-09 19:59:49,418 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-09 19:59:49,419 INFO L432 NwaCegarLoop]: 608 mSDtfsCounter, 3788 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 6815 mSolverCounterSat, 628 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3788 SdHoareTripleChecker+Valid, 630 SdHoareTripleChecker+Invalid, 7443 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 628 IncrementalHoareTripleChecker+Valid, 6815 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2024-11-09 19:59:49,419 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3788 Valid, 630 Invalid, 7443 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [628 Valid, 6815 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2024-11-09 19:59:49,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4842 states. [2024-11-09 19:59:49,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4842 to 4151. [2024-11-09 19:59:49,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4151 states, 4150 states have (on average 2.237831325301205) internal successors, (9287), 4150 states have internal predecessors, (9287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:59:49,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4151 states to 4151 states and 9287 transitions. [2024-11-09 19:59:49,475 INFO L78 Accepts]: Start accepts. Automaton has 4151 states and 9287 transitions. Word has length 220 [2024-11-09 19:59:49,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:59:49,476 INFO L471 AbstractCegarLoop]: Abstraction has 4151 states and 9287 transitions. [2024-11-09 19:59:49,476 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 41.5) internal successors, (166), 3 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:59:49,476 INFO L276 IsEmpty]: Start isEmpty. Operand 4151 states and 9287 transitions. [2024-11-09 19:59:49,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 311 [2024-11-09 19:59:49,481 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:59:49,481 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:59:49,481 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-09 19:59:49,481 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:59:49,482 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:59:49,482 INFO L85 PathProgramCache]: Analyzing trace with hash 2026846403, now seen corresponding path program 1 times [2024-11-09 19:59:49,482 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:59:49,482 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [606951026] [2024-11-09 19:59:49,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:59:49,483 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:59:49,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:59:49,820 INFO L134 CoverageAnalysis]: Checked inductivity of 177 backedges. 174 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-09 19:59:49,822 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:59:49,822 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [606951026] [2024-11-09 19:59:49,822 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [606951026] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:59:49,822 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:59:49,822 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 19:59:49,823 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1752133823] [2024-11-09 19:59:49,823 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:59:49,823 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 19:59:49,824 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:59:49,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 19:59:49,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 19:59:49,825 INFO L87 Difference]: Start difference. First operand 4151 states and 9287 transitions. Second operand has 4 states, 4 states have (on average 77.0) internal successors, (308), 3 states have internal predecessors, (308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:59:52,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:59:52,903 INFO L93 Difference]: Finished difference Result 10427 states and 23204 transitions. [2024-11-09 19:59:52,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 19:59:52,904 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 77.0) internal successors, (308), 3 states have internal predecessors, (308), 0 states have call successors, (0), 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 310 [2024-11-09 19:59:52,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:59:52,921 INFO L225 Difference]: With dead ends: 10427 [2024-11-09 19:59:52,921 INFO L226 Difference]: Without dead ends: 6224 [2024-11-09 19:59:52,925 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 [2024-11-09 19:59:52,926 INFO L432 NwaCegarLoop]: 627 mSDtfsCounter, 1150 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 4453 mSolverCounterSat, 867 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1150 SdHoareTripleChecker+Valid, 642 SdHoareTripleChecker+Invalid, 5320 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 867 IncrementalHoareTripleChecker+Valid, 4453 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2024-11-09 19:59:52,926 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1150 Valid, 642 Invalid, 5320 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [867 Valid, 4453 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2024-11-09 19:59:52,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6224 states. [2024-11-09 19:59:52,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6224 to 5533. [2024-11-09 19:59:52,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5533 states, 5532 states have (on average 2.093817787418655) internal successors, (11583), 5532 states have internal predecessors, (11583), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:59:52,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5533 states to 5533 states and 11583 transitions. [2024-11-09 19:59:52,993 INFO L78 Accepts]: Start accepts. Automaton has 5533 states and 11583 transitions. Word has length 310 [2024-11-09 19:59:52,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:59:52,995 INFO L471 AbstractCegarLoop]: Abstraction has 5533 states and 11583 transitions. [2024-11-09 19:59:52,995 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 77.0) internal successors, (308), 3 states have internal predecessors, (308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:59:52,995 INFO L276 IsEmpty]: Start isEmpty. Operand 5533 states and 11583 transitions. [2024-11-09 19:59:53,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 944 [2024-11-09 19:59:53,008 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:59:53,009 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:59:53,009 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-09 19:59:53,010 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:59:53,011 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:59:53,012 INFO L85 PathProgramCache]: Analyzing trace with hash 485865329, now seen corresponding path program 1 times [2024-11-09 19:59:53,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:59:53,012 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [10423703] [2024-11-09 19:59:53,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:59:53,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:59:53,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:59:53,651 INFO L134 CoverageAnalysis]: Checked inductivity of 600 backedges. 164 proven. 0 refuted. 0 times theorem prover too weak. 436 trivial. 0 not checked. [2024-11-09 19:59:53,652 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:59:53,652 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [10423703] [2024-11-09 19:59:53,652 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [10423703] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:59:53,652 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:59:53,652 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 19:59:53,653 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1595579256] [2024-11-09 19:59:53,653 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:59:53,653 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:59:53,654 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:59:53,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:59:53,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:59:53,655 INFO L87 Difference]: Start difference. First operand 5533 states and 11583 transitions. Second operand has 3 states, 3 states have (on average 192.33333333333334) internal successors, (577), 2 states have internal predecessors, (577), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:59:55,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:59:55,943 INFO L93 Difference]: Finished difference Result 12446 states and 26169 transitions. [2024-11-09 19:59:55,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:59:55,944 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 192.33333333333334) internal successors, (577), 2 states have internal predecessors, (577), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 943 [2024-11-09 19:59:55,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:59:55,966 INFO L225 Difference]: With dead ends: 12446 [2024-11-09 19:59:55,966 INFO L226 Difference]: Without dead ends: 6915 [2024-11-09 19:59:55,972 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:59:55,972 INFO L432 NwaCegarLoop]: 74 mSDtfsCounter, 871 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 3033 mSolverCounterSat, 687 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 871 SdHoareTripleChecker+Valid, 80 SdHoareTripleChecker+Invalid, 3720 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 687 IncrementalHoareTripleChecker+Valid, 3033 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-11-09 19:59:55,972 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [871 Valid, 80 Invalid, 3720 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [687 Valid, 3033 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-11-09 19:59:55,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6915 states. [2024-11-09 19:59:56,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6915 to 6915. [2024-11-09 19:59:56,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6915 states, 6914 states have (on average 2.0906855655192365) internal successors, (14455), 6914 states have internal predecessors, (14455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:59:56,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6915 states to 6915 states and 14455 transitions. [2024-11-09 19:59:56,065 INFO L78 Accepts]: Start accepts. Automaton has 6915 states and 14455 transitions. Word has length 943 [2024-11-09 19:59:56,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:59:56,067 INFO L471 AbstractCegarLoop]: Abstraction has 6915 states and 14455 transitions. [2024-11-09 19:59:56,067 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 192.33333333333334) internal successors, (577), 2 states have internal predecessors, (577), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:59:56,068 INFO L276 IsEmpty]: Start isEmpty. Operand 6915 states and 14455 transitions. [2024-11-09 19:59:56,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 966 [2024-11-09 19:59:56,085 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:59:56,086 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:59:56,086 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-09 19:59:56,086 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:59:56,087 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:59:56,087 INFO L85 PathProgramCache]: Analyzing trace with hash -959003345, now seen corresponding path program 1 times [2024-11-09 19:59:56,088 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:59:56,088 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1659008328] [2024-11-09 19:59:56,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:59:56,088 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:59:56,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:59:56,565 INFO L134 CoverageAnalysis]: Checked inductivity of 644 backedges. 346 proven. 0 refuted. 0 times theorem prover too weak. 298 trivial. 0 not checked. [2024-11-09 19:59:56,566 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:59:56,566 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1659008328] [2024-11-09 19:59:56,567 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1659008328] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:59:56,567 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:59:56,568 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 19:59:56,568 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [13283824] [2024-11-09 19:59:56,568 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:59:56,569 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:59:56,569 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:59:56,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:59:56,570 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:59:56,570 INFO L87 Difference]: Start difference. First operand 6915 states and 14455 transitions. Second operand has 3 states, 3 states have (on average 222.66666666666666) internal successors, (668), 3 states have internal predecessors, (668), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:59:59,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:59:59,030 INFO L93 Difference]: Finished difference Result 18665 states and 39406 transitions. [2024-11-09 19:59:59,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:59:59,031 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 222.66666666666666) internal successors, (668), 3 states have internal predecessors, (668), 0 states have call successors, (0), 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 965 [2024-11-09 19:59:59,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:59:59,051 INFO L225 Difference]: With dead ends: 18665 [2024-11-09 19:59:59,051 INFO L226 Difference]: Without dead ends: 11752 [2024-11-09 19:59:59,057 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 [2024-11-09 19:59:59,058 INFO L432 NwaCegarLoop]: 145 mSDtfsCounter, 1240 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 3116 mSolverCounterSat, 619 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1240 SdHoareTripleChecker+Valid, 153 SdHoareTripleChecker+Invalid, 3735 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 619 IncrementalHoareTripleChecker+Valid, 3116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-11-09 19:59:59,058 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1240 Valid, 153 Invalid, 3735 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [619 Valid, 3116 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-11-09 19:59:59,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11752 states. [2024-11-09 19:59:59,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11752 to 11061. [2024-11-09 19:59:59,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11061 states, 11060 states have (on average 2.1172694394213383) internal successors, (23417), 11060 states have internal predecessors, (23417), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:59:59,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11061 states to 11061 states and 23417 transitions. [2024-11-09 19:59:59,245 INFO L78 Accepts]: Start accepts. Automaton has 11061 states and 23417 transitions. Word has length 965 [2024-11-09 19:59:59,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:59:59,246 INFO L471 AbstractCegarLoop]: Abstraction has 11061 states and 23417 transitions. [2024-11-09 19:59:59,247 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 222.66666666666666) internal successors, (668), 3 states have internal predecessors, (668), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:59:59,247 INFO L276 IsEmpty]: Start isEmpty. Operand 11061 states and 23417 transitions. [2024-11-09 19:59:59,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1022 [2024-11-09 19:59:59,258 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:59:59,259 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:59:59,259 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-09 19:59:59,259 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:59:59,260 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:59:59,260 INFO L85 PathProgramCache]: Analyzing trace with hash -1681142649, now seen corresponding path program 1 times [2024-11-09 19:59:59,261 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:59:59,261 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [447250330] [2024-11-09 19:59:59,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:59:59,261 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:59:59,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 20:00:00,162 INFO L134 CoverageAnalysis]: Checked inductivity of 756 backedges. 458 proven. 0 refuted. 0 times theorem prover too weak. 298 trivial. 0 not checked. [2024-11-09 20:00:00,162 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 20:00:00,162 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [447250330] [2024-11-09 20:00:00,162 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [447250330] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 20:00:00,162 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 20:00:00,162 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 20:00:00,162 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [963246392] [2024-11-09 20:00:00,162 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 20:00:00,163 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 20:00:00,163 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 20:00:00,164 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 20:00:00,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 20:00:00,165 INFO L87 Difference]: Start difference. First operand 11061 states and 23417 transitions. Second operand has 3 states, 3 states have (on average 241.33333333333334) internal successors, (724), 3 states have internal predecessors, (724), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 20:00:02,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 20:00:02,471 INFO L93 Difference]: Finished difference Result 26266 states and 55692 transitions. [2024-11-09 20:00:02,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 20:00:02,475 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 241.33333333333334) internal successors, (724), 3 states have internal predecessors, (724), 0 states have call successors, (0), 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 1021 [2024-11-09 20:00:02,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 20:00:02,501 INFO L225 Difference]: With dead ends: 26266 [2024-11-09 20:00:02,502 INFO L226 Difference]: Without dead ends: 15207 [2024-11-09 20:00:02,513 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 [2024-11-09 20:00:02,515 INFO L432 NwaCegarLoop]: 1653 mSDtfsCounter, 1166 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 3243 mSolverCounterSat, 256 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1166 SdHoareTripleChecker+Valid, 1662 SdHoareTripleChecker+Invalid, 3499 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 256 IncrementalHoareTripleChecker+Valid, 3243 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-11-09 20:00:02,516 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1166 Valid, 1662 Invalid, 3499 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [256 Valid, 3243 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-11-09 20:00:02,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15207 states. [2024-11-09 20:00:02,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15207 to 15207. [2024-11-09 20:00:02,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15207 states, 15206 states have (on average 2.0892410890437985) internal successors, (31769), 15206 states have internal predecessors, (31769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 20:00:02,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15207 states to 15207 states and 31769 transitions. [2024-11-09 20:00:02,684 INFO L78 Accepts]: Start accepts. Automaton has 15207 states and 31769 transitions. Word has length 1021 [2024-11-09 20:00:02,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 20:00:02,685 INFO L471 AbstractCegarLoop]: Abstraction has 15207 states and 31769 transitions. [2024-11-09 20:00:02,685 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 241.33333333333334) internal successors, (724), 3 states have internal predecessors, (724), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 20:00:02,685 INFO L276 IsEmpty]: Start isEmpty. Operand 15207 states and 31769 transitions. [2024-11-09 20:00:02,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1029 [2024-11-09 20:00:02,692 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 20:00:02,692 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 20:00:02,693 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-09 20:00:02,693 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 20:00:02,693 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 20:00:02,694 INFO L85 PathProgramCache]: Analyzing trace with hash 1395332016, now seen corresponding path program 1 times [2024-11-09 20:00:02,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 20:00:02,694 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1500621099] [2024-11-09 20:00:02,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 20:00:02,694 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 20:00:02,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 20:00:03,197 INFO L134 CoverageAnalysis]: Checked inductivity of 763 backedges. 164 proven. 0 refuted. 0 times theorem prover too weak. 599 trivial. 0 not checked. [2024-11-09 20:00:03,198 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 20:00:03,198 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1500621099] [2024-11-09 20:00:03,198 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1500621099] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 20:00:03,198 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 20:00:03,198 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 20:00:03,198 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1044643942] [2024-11-09 20:00:03,198 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 20:00:03,199 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 20:00:03,199 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 20:00:03,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 20:00:03,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 20:00:03,200 INFO L87 Difference]: Start difference. First operand 15207 states and 31769 transitions. Second operand has 3 states, 3 states have (on average 192.33333333333334) internal successors, (577), 2 states have internal predecessors, (577), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 20:00:05,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 20:00:05,682 INFO L93 Difference]: Finished difference Result 37322 states and 79151 transitions. [2024-11-09 20:00:05,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 20:00:05,683 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 192.33333333333334) internal successors, (577), 2 states have internal predecessors, (577), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1028 [2024-11-09 20:00:05,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 20:00:05,718 INFO L225 Difference]: With dead ends: 37322 [2024-11-09 20:00:05,718 INFO L226 Difference]: Without dead ends: 22117 [2024-11-09 20:00:05,731 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 20:00:05,732 INFO L432 NwaCegarLoop]: 386 mSDtfsCounter, 848 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 2909 mSolverCounterSat, 602 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 848 SdHoareTripleChecker+Valid, 392 SdHoareTripleChecker+Invalid, 3511 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 602 IncrementalHoareTripleChecker+Valid, 2909 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-11-09 20:00:05,732 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [848 Valid, 392 Invalid, 3511 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [602 Valid, 2909 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-11-09 20:00:05,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22117 states. [2024-11-09 20:00:05,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22117 to 20044. [2024-11-09 20:00:05,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20044 states, 20043 states have (on average 2.057576211146036) internal successors, (41240), 20043 states have internal predecessors, (41240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 20:00:05,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20044 states to 20044 states and 41240 transitions. [2024-11-09 20:00:05,968 INFO L78 Accepts]: Start accepts. Automaton has 20044 states and 41240 transitions. Word has length 1028 [2024-11-09 20:00:05,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 20:00:05,969 INFO L471 AbstractCegarLoop]: Abstraction has 20044 states and 41240 transitions. [2024-11-09 20:00:05,969 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 192.33333333333334) internal successors, (577), 2 states have internal predecessors, (577), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 20:00:05,969 INFO L276 IsEmpty]: Start isEmpty. Operand 20044 states and 41240 transitions. [2024-11-09 20:00:05,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1048 [2024-11-09 20:00:05,976 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 20:00:05,976 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 20:00:05,976 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-09 20:00:05,976 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 20:00:05,977 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 20:00:05,977 INFO L85 PathProgramCache]: Analyzing trace with hash -2085411869, now seen corresponding path program 1 times [2024-11-09 20:00:05,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 20:00:05,977 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1403006878] [2024-11-09 20:00:05,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 20:00:05,977 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 20:00:06,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 20:00:06,486 INFO L134 CoverageAnalysis]: Checked inductivity of 948 backedges. 219 proven. 0 refuted. 0 times theorem prover too weak. 729 trivial. 0 not checked. [2024-11-09 20:00:06,486 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 20:00:06,486 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1403006878] [2024-11-09 20:00:06,486 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1403006878] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 20:00:06,486 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 20:00:06,487 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 20:00:06,487 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [302572121] [2024-11-09 20:00:06,487 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 20:00:06,487 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 20:00:06,487 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 20:00:06,488 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 20:00:06,488 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 20:00:06,492 INFO L87 Difference]: Start difference. First operand 20044 states and 41240 transitions. Second operand has 3 states, 3 states have (on average 192.66666666666666) internal successors, (578), 3 states have internal predecessors, (578), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 20:00:08,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 20:00:08,970 INFO L93 Difference]: Finished difference Result 46305 states and 95751 transitions. [2024-11-09 20:00:08,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 20:00:08,971 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 192.66666666666666) internal successors, (578), 3 states have internal predecessors, (578), 0 states have call successors, (0), 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 1047 [2024-11-09 20:00:08,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 20:00:09,007 INFO L225 Difference]: With dead ends: 46305 [2024-11-09 20:00:09,007 INFO L226 Difference]: Without dead ends: 26263 [2024-11-09 20:00:09,026 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 [2024-11-09 20:00:09,026 INFO L432 NwaCegarLoop]: 1741 mSDtfsCounter, 1259 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 3314 mSolverCounterSat, 330 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1259 SdHoareTripleChecker+Valid, 1750 SdHoareTripleChecker+Invalid, 3644 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 330 IncrementalHoareTripleChecker+Valid, 3314 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-11-09 20:00:09,027 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1259 Valid, 1750 Invalid, 3644 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [330 Valid, 3314 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-11-09 20:00:09,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26263 states. [2024-11-09 20:00:09,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26263 to 25572. [2024-11-09 20:00:09,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25572 states, 25571 states have (on average 2.048023151225998) internal successors, (52370), 25571 states have internal predecessors, (52370), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 20:00:09,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25572 states to 25572 states and 52370 transitions. [2024-11-09 20:00:09,358 INFO L78 Accepts]: Start accepts. Automaton has 25572 states and 52370 transitions. Word has length 1047 [2024-11-09 20:00:09,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 20:00:09,358 INFO L471 AbstractCegarLoop]: Abstraction has 25572 states and 52370 transitions. [2024-11-09 20:00:09,358 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 192.66666666666666) internal successors, (578), 3 states have internal predecessors, (578), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 20:00:09,359 INFO L276 IsEmpty]: Start isEmpty. Operand 25572 states and 52370 transitions. [2024-11-09 20:00:09,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1163 [2024-11-09 20:00:09,369 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 20:00:09,370 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 20:00:09,370 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-09 20:00:09,370 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 20:00:09,370 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 20:00:09,370 INFO L85 PathProgramCache]: Analyzing trace with hash -1745734520, now seen corresponding path program 1 times [2024-11-09 20:00:09,371 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 20:00:09,371 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [685663036] [2024-11-09 20:00:09,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 20:00:09,371 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 20:00:09,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 20:00:10,313 INFO L134 CoverageAnalysis]: Checked inductivity of 1372 backedges. 774 proven. 0 refuted. 0 times theorem prover too weak. 598 trivial. 0 not checked. [2024-11-09 20:00:10,313 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 20:00:10,313 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [685663036] [2024-11-09 20:00:10,313 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [685663036] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 20:00:10,313 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 20:00:10,313 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 20:00:10,313 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1270276978] [2024-11-09 20:00:10,313 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 20:00:10,314 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 20:00:10,315 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 20:00:10,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 20:00:10,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-09 20:00:10,317 INFO L87 Difference]: Start difference. First operand 25572 states and 52370 transitions. Second operand has 5 states, 5 states have (on average 137.0) internal successors, (685), 5 states have internal predecessors, (685), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 20:00:13,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 20:00:13,606 INFO L93 Difference]: Finished difference Result 58131 states and 118979 transitions. [2024-11-09 20:00:13,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 20:00:13,606 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 137.0) internal successors, (685), 5 states have internal predecessors, (685), 0 states have call successors, (0), 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 1162 [2024-11-09 20:00:13,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 20:00:13,647 INFO L225 Difference]: With dead ends: 58131 [2024-11-09 20:00:13,647 INFO L226 Difference]: Without dead ends: 28415 [2024-11-09 20:00:13,666 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-09 20:00:13,666 INFO L432 NwaCegarLoop]: 1732 mSDtfsCounter, 3902 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 4349 mSolverCounterSat, 1070 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3902 SdHoareTripleChecker+Valid, 1744 SdHoareTripleChecker+Invalid, 5419 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1070 IncrementalHoareTripleChecker+Valid, 4349 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2024-11-09 20:00:13,666 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3902 Valid, 1744 Invalid, 5419 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1070 Valid, 4349 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2024-11-09 20:00:13,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28415 states. [2024-11-09 20:00:13,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28415 to 27645. [2024-11-09 20:00:13,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27645 states, 27644 states have (on average 1.9877369411083778) internal successors, (54949), 27644 states have internal predecessors, (54949), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 20:00:13,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27645 states to 27645 states and 54949 transitions. [2024-11-09 20:00:13,932 INFO L78 Accepts]: Start accepts. Automaton has 27645 states and 54949 transitions. Word has length 1162 [2024-11-09 20:00:13,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 20:00:13,932 INFO L471 AbstractCegarLoop]: Abstraction has 27645 states and 54949 transitions. [2024-11-09 20:00:13,933 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 137.0) internal successors, (685), 5 states have internal predecessors, (685), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 20:00:13,933 INFO L276 IsEmpty]: Start isEmpty. Operand 27645 states and 54949 transitions. [2024-11-09 20:00:13,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1167 [2024-11-09 20:00:13,943 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 20:00:13,944 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 20:00:13,944 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-09 20:00:13,944 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 20:00:13,945 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 20:00:13,945 INFO L85 PathProgramCache]: Analyzing trace with hash 872260746, now seen corresponding path program 1 times [2024-11-09 20:00:13,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 20:00:13,945 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1788660162] [2024-11-09 20:00:13,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 20:00:13,945 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 20:00:14,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 20:00:14,721 INFO L134 CoverageAnalysis]: Checked inductivity of 1410 backedges. 909 proven. 0 refuted. 0 times theorem prover too weak. 501 trivial. 0 not checked. [2024-11-09 20:00:14,721 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 20:00:14,721 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1788660162] [2024-11-09 20:00:14,721 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1788660162] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 20:00:14,721 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 20:00:14,722 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 20:00:14,722 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1311606410] [2024-11-09 20:00:14,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 20:00:14,722 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 20:00:14,722 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 20:00:14,725 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 20:00:14,725 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 20:00:14,725 INFO L87 Difference]: Start difference. First operand 27645 states and 54949 transitions. Second operand has 3 states, 3 states have (on average 241.0) internal successors, (723), 3 states have internal predecessors, (723), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 20:00:16,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 20:00:16,867 INFO L93 Difference]: Finished difference Result 58743 states and 116908 transitions. [2024-11-09 20:00:16,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 20:00:16,867 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 241.0) internal successors, (723), 3 states have internal predecessors, (723), 0 states have call successors, (0), 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 1166 [2024-11-09 20:00:16,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 20:00:16,900 INFO L225 Difference]: With dead ends: 58743 [2024-11-09 20:00:16,900 INFO L226 Difference]: Without dead ends: 31100 [2024-11-09 20:00:16,914 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 [2024-11-09 20:00:16,915 INFO L432 NwaCegarLoop]: 223 mSDtfsCounter, 1208 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 3001 mSolverCounterSat, 146 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1208 SdHoareTripleChecker+Valid, 231 SdHoareTripleChecker+Invalid, 3147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 146 IncrementalHoareTripleChecker+Valid, 3001 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-09 20:00:16,915 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1208 Valid, 231 Invalid, 3147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [146 Valid, 3001 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-09 20:00:16,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31100 states. [2024-11-09 20:00:17,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31100 to 31100. [2024-11-09 20:00:17,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31100 states, 31099 states have (on average 1.9840509341136372) internal successors, (61702), 31099 states have internal predecessors, (61702), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 20:00:17,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31100 states to 31100 states and 61702 transitions. [2024-11-09 20:00:17,198 INFO L78 Accepts]: Start accepts. Automaton has 31100 states and 61702 transitions. Word has length 1166 [2024-11-09 20:00:17,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 20:00:17,199 INFO L471 AbstractCegarLoop]: Abstraction has 31100 states and 61702 transitions. [2024-11-09 20:00:17,199 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 241.0) internal successors, (723), 3 states have internal predecessors, (723), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 20:00:17,199 INFO L276 IsEmpty]: Start isEmpty. Operand 31100 states and 61702 transitions. [2024-11-09 20:00:17,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1222 [2024-11-09 20:00:17,212 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 20:00:17,213 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 20:00:17,213 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-09 20:00:17,213 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 20:00:17,213 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 20:00:17,213 INFO L85 PathProgramCache]: Analyzing trace with hash 595661541, now seen corresponding path program 1 times [2024-11-09 20:00:17,214 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 20:00:17,214 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [91079841] [2024-11-09 20:00:17,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 20:00:17,214 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 20:00:17,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 20:00:17,568 INFO L134 CoverageAnalysis]: Checked inductivity of 1543 backedges. 274 proven. 0 refuted. 0 times theorem prover too weak. 1269 trivial. 0 not checked. [2024-11-09 20:00:17,568 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 20:00:17,568 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [91079841] [2024-11-09 20:00:17,568 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [91079841] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 20:00:17,568 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 20:00:17,568 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 20:00:17,569 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1347704018] [2024-11-09 20:00:17,569 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 20:00:17,571 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 20:00:17,571 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 20:00:17,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 20:00:17,572 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 20:00:17,572 INFO L87 Difference]: Start difference. First operand 31100 states and 61702 transitions. Second operand has 3 states, 3 states have (on average 193.0) internal successors, (579), 3 states have internal predecessors, (579), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 20:00:19,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 20:00:19,846 INFO L93 Difference]: Finished difference Result 78091 states and 155265 transitions. [2024-11-09 20:00:19,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 20:00:19,846 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 193.0) internal successors, (579), 3 states have internal predecessors, (579), 0 states have call successors, (0), 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 1221 [2024-11-09 20:00:19,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 20:00:19,900 INFO L225 Difference]: With dead ends: 78091 [2024-11-09 20:00:19,900 INFO L226 Difference]: Without dead ends: 46993 [2024-11-09 20:00:19,922 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 [2024-11-09 20:00:19,923 INFO L432 NwaCegarLoop]: 140 mSDtfsCounter, 1287 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 2946 mSolverCounterSat, 360 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1287 SdHoareTripleChecker+Valid, 148 SdHoareTripleChecker+Invalid, 3306 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 360 IncrementalHoareTripleChecker+Valid, 2946 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-11-09 20:00:19,923 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1287 Valid, 148 Invalid, 3306 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [360 Valid, 2946 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-11-09 20:00:19,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46993 states. [2024-11-09 20:00:20,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46993 to 45611. [2024-11-09 20:00:20,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45611 states, 45610 states have (on average 1.9849813637360227) internal successors, (90535), 45610 states have internal predecessors, (90535), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 20:00:20,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45611 states to 45611 states and 90535 transitions. [2024-11-09 20:00:20,717 INFO L78 Accepts]: Start accepts. Automaton has 45611 states and 90535 transitions. Word has length 1221 [2024-11-09 20:00:20,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 20:00:20,718 INFO L471 AbstractCegarLoop]: Abstraction has 45611 states and 90535 transitions. [2024-11-09 20:00:20,718 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 193.0) internal successors, (579), 3 states have internal predecessors, (579), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 20:00:20,718 INFO L276 IsEmpty]: Start isEmpty. Operand 45611 states and 90535 transitions. [2024-11-09 20:00:20,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1537 [2024-11-09 20:00:20,769 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 20:00:20,770 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-09 20:00:20,770 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-09 20:00:20,770 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 20:00:20,771 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 20:00:20,771 INFO L85 PathProgramCache]: Analyzing trace with hash -524849831, now seen corresponding path program 1 times [2024-11-09 20:00:20,771 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 20:00:20,771 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [186964903] [2024-11-09 20:00:20,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 20:00:20,772 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 20:00:20,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 20:00:22,205 INFO L134 CoverageAnalysis]: Checked inductivity of 2009 backedges. 1482 proven. 0 refuted. 0 times theorem prover too weak. 527 trivial. 0 not checked. [2024-11-09 20:00:22,205 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 20:00:22,206 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [186964903] [2024-11-09 20:00:22,206 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [186964903] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 20:00:22,206 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 20:00:22,206 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 20:00:22,206 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1928062794] [2024-11-09 20:00:22,206 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 20:00:22,208 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 20:00:22,208 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 20:00:22,209 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 20:00:22,209 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-09 20:00:22,209 INFO L87 Difference]: Start difference. First operand 45611 states and 90535 transitions. Second operand has 5 states, 5 states have (on average 219.6) internal successors, (1098), 5 states have internal predecessors, (1098), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 20:00:25,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 20:00:25,303 INFO L93 Difference]: Finished difference Result 90641 states and 179864 transitions. [2024-11-09 20:00:25,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 20:00:25,303 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 219.6) internal successors, (1098), 5 states have internal predecessors, (1098), 0 states have call successors, (0), 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 1536 [2024-11-09 20:00:25,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 20:00:25,350 INFO L225 Difference]: With dead ends: 90641 [2024-11-09 20:00:25,350 INFO L226 Difference]: Without dead ends: 45032 [2024-11-09 20:00:25,372 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-09 20:00:25,373 INFO L432 NwaCegarLoop]: 1570 mSDtfsCounter, 1317 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 5886 mSolverCounterSat, 393 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1317 SdHoareTripleChecker+Valid, 1594 SdHoareTripleChecker+Invalid, 6279 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 393 IncrementalHoareTripleChecker+Valid, 5886 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2024-11-09 20:00:25,373 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1317 Valid, 1594 Invalid, 6279 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [393 Valid, 5886 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2024-11-09 20:00:25,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45032 states. [2024-11-09 20:00:25,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45032 to 44920. [2024-11-09 20:00:25,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44920 states, 44919 states have (on average 1.9730848861283643) internal successors, (88629), 44919 states have internal predecessors, (88629), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 20:00:25,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44920 states to 44920 states and 88629 transitions. [2024-11-09 20:00:25,966 INFO L78 Accepts]: Start accepts. Automaton has 44920 states and 88629 transitions. Word has length 1536 [2024-11-09 20:00:25,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 20:00:25,966 INFO L471 AbstractCegarLoop]: Abstraction has 44920 states and 88629 transitions. [2024-11-09 20:00:25,967 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 219.6) internal successors, (1098), 5 states have internal predecessors, (1098), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 20:00:25,967 INFO L276 IsEmpty]: Start isEmpty. Operand 44920 states and 88629 transitions. [2024-11-09 20:00:26,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1590 [2024-11-09 20:00:26,018 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 20:00:26,019 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-09 20:00:26,019 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-09 20:00:26,019 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 20:00:26,019 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 20:00:26,020 INFO L85 PathProgramCache]: Analyzing trace with hash 130441919, now seen corresponding path program 1 times [2024-11-09 20:00:26,020 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 20:00:26,020 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1753059377] [2024-11-09 20:00:26,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 20:00:26,020 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 20:00:26,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 20:00:27,356 INFO L134 CoverageAnalysis]: Checked inductivity of 2189 backedges. 276 proven. 0 refuted. 0 times theorem prover too weak. 1913 trivial. 0 not checked. [2024-11-09 20:00:27,357 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 20:00:27,357 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1753059377] [2024-11-09 20:00:27,357 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1753059377] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 20:00:27,357 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 20:00:27,357 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 20:00:27,357 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1771565453] [2024-11-09 20:00:27,358 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 20:00:27,358 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 20:00:27,359 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 20:00:27,359 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 20:00:27,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 20:00:27,359 INFO L87 Difference]: Start difference. First operand 44920 states and 88629 transitions. Second operand has 3 states, 3 states have (on average 193.33333333333334) internal successors, (580), 3 states have internal predecessors, (580), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 20:00:29,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 20:00:29,389 INFO L93 Difference]: Finished difference Result 89835 states and 177254 transitions. [2024-11-09 20:00:29,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 20:00:29,390 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 193.33333333333334) internal successors, (580), 3 states have internal predecessors, (580), 0 states have call successors, (0), 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 1589 [2024-11-09 20:00:29,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 20:00:29,391 INFO L225 Difference]: With dead ends: 89835 [2024-11-09 20:00:29,391 INFO L226 Difference]: Without dead ends: 0 [2024-11-09 20:00:29,418 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 20:00:29,418 INFO L432 NwaCegarLoop]: 1360 mSDtfsCounter, 1361 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2937 mSolverCounterSat, 156 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1361 SdHoareTripleChecker+Valid, 1367 SdHoareTripleChecker+Invalid, 3093 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 156 IncrementalHoareTripleChecker+Valid, 2937 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-09 20:00:29,419 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1361 Valid, 1367 Invalid, 3093 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [156 Valid, 2937 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-09 20:00:29,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-09 20:00:29,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-09 20:00:29,419 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) [2024-11-09 20:00:29,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-09 20:00:29,419 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 1589 [2024-11-09 20:00:29,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 20:00:29,420 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-09 20:00:29,420 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 193.33333333333334) internal successors, (580), 3 states have internal predecessors, (580), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 20:00:29,420 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-09 20:00:29,420 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-09 20:00:29,422 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-09 20:00:29,422 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-09 20:00:29,424 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 20:00:29,426 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-09 20:00:29,917 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-09 20:00:29,927 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 08:00:29 BoogieIcfgContainer [2024-11-09 20:00:29,927 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-09 20:00:29,927 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 20:00:29,927 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 20:00:29,928 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 20:00:29,928 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.11 07:59:38" (3/4) ... [2024-11-09 20:00:29,929 INFO L143 WitnessPrinter]: Generating witness for correct program [2024-11-09 20:00:29,968 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2024-11-09 20:00:29,974 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-09 20:00:29,979 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-09 20:00:29,983 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-09 20:00:30,228 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-09 20:00:30,228 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-09 20:00:30,228 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 20:00:30,229 INFO L158 Benchmark]: Toolchain (without parser) took 56641.12ms. Allocated memory was 180.4MB in the beginning and 2.8GB in the end (delta: 2.6GB). Free memory was 144.0MB in the beginning and 2.0GB in the end (delta: -1.8GB). Peak memory consumption was 1.3GB. Max. memory is 16.1GB. [2024-11-09 20:00:30,229 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 180.4MB. Free memory is still 152.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 20:00:30,229 INFO L158 Benchmark]: CACSL2BoogieTranslator took 959.90ms. Allocated memory is still 180.4MB. Free memory was 143.2MB in the beginning and 122.0MB in the end (delta: 21.2MB). Peak memory consumption was 108.2MB. Max. memory is 16.1GB. [2024-11-09 20:00:30,229 INFO L158 Benchmark]: Boogie Procedure Inliner took 160.79ms. Allocated memory is still 180.4MB. Free memory was 122.0MB in the beginning and 78.9MB in the end (delta: 43.1MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2024-11-09 20:00:30,230 INFO L158 Benchmark]: Boogie Preprocessor took 291.99ms. Allocated memory was 180.4MB in the beginning and 278.9MB in the end (delta: 98.6MB). Free memory was 78.9MB in the beginning and 167.8MB in the end (delta: -88.9MB). Peak memory consumption was 40.0MB. Max. memory is 16.1GB. [2024-11-09 20:00:30,230 INFO L158 Benchmark]: IcfgBuilder took 3461.24ms. Allocated memory was 278.9MB in the beginning and 467.7MB in the end (delta: 188.7MB). Free memory was 167.8MB in the beginning and 361.8MB in the end (delta: -194.0MB). Peak memory consumption was 252.7MB. Max. memory is 16.1GB. [2024-11-09 20:00:30,230 INFO L158 Benchmark]: TraceAbstraction took 51460.35ms. Allocated memory was 467.7MB in the beginning and 2.8GB in the end (delta: 2.3GB). Free memory was 360.7MB in the beginning and 1.5GB in the end (delta: -1.1GB). Peak memory consumption was 1.2GB. Max. memory is 16.1GB. [2024-11-09 20:00:30,230 INFO L158 Benchmark]: Witness Printer took 300.97ms. Allocated memory is still 2.8GB. Free memory was 1.5GB in the beginning and 2.0GB in the end (delta: -501.1MB). Peak memory consumption was 50.4MB. Max. memory is 16.1GB. [2024-11-09 20:00:30,231 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 180.4MB. Free memory is still 152.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 959.90ms. Allocated memory is still 180.4MB. Free memory was 143.2MB in the beginning and 122.0MB in the end (delta: 21.2MB). Peak memory consumption was 108.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 160.79ms. Allocated memory is still 180.4MB. Free memory was 122.0MB in the beginning and 78.9MB in the end (delta: 43.1MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. * Boogie Preprocessor took 291.99ms. Allocated memory was 180.4MB in the beginning and 278.9MB in the end (delta: 98.6MB). Free memory was 78.9MB in the beginning and 167.8MB in the end (delta: -88.9MB). Peak memory consumption was 40.0MB. Max. memory is 16.1GB. * IcfgBuilder took 3461.24ms. Allocated memory was 278.9MB in the beginning and 467.7MB in the end (delta: 188.7MB). Free memory was 167.8MB in the beginning and 361.8MB in the end (delta: -194.0MB). Peak memory consumption was 252.7MB. Max. memory is 16.1GB. * TraceAbstraction took 51460.35ms. Allocated memory was 467.7MB in the beginning and 2.8GB in the end (delta: 2.3GB). Free memory was 360.7MB in the beginning and 1.5GB in the end (delta: -1.1GB). Peak memory consumption was 1.2GB. Max. memory is 16.1GB. * Witness Printer took 300.97ms. Allocated memory is still 2.8GB. Free memory was 1.5GB in the beginning and 2.0GB in the end (delta: -501.1MB). Peak memory consumption was 50.4MB. 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: 187]: 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, 760 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 50.9s, OverallIterations: 13, TraceHistogramMax: 6, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.2s, AutomataDifference: 38.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 23384 SdHoareTripleChecker+Valid, 35.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 23384 mSDsluCounter, 10568 SdHoareTripleChecker+Invalid, 29.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 165 mSDsCounter, 7887 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 51255 IncrementalHoareTripleChecker+Invalid, 59142 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 7887 mSolverCounterUnsat, 10403 mSDtfsCounter, 51255 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 46 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=45611occurred in iteration=11, InterpolantAutomatonStates: 45, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 3.1s AutomataMinimizationTime, 13 MinimizatonAttempts, 7108 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 7.7s InterpolantComputationTime, 12266 NumberOfCodeBlocks, 12266 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 12253 ConstructedInterpolants, 0 QuantifiedInterpolants, 21263 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 13 InterpolantComputations, 13 PerfectInterpolantSequences, 12587/12587 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: 4269]: Location Invariant Derived location invariant: null RESULT: Ultimate proved your program to be correct! [2024-11-09 20:00:30,255 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