./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem16_label55.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/Problem16_label55.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 8e1a5ec7c69529be2d8c0f142d6c458fe9f526e0a4b1c8c2c339cb2c1b253dd3 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-023d838-m [2024-11-09 19:49:27,614 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 19:49:27,677 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-09 19:49:27,684 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 19:49:27,684 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 19:49:27,715 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 19:49:27,715 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 19:49:27,716 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 19:49:27,716 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-09 19:49:27,717 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-09 19:49:27,717 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 19:49:27,717 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 19:49:27,718 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 19:49:27,718 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 19:49:27,719 INFO L153 SettingsManager]: * Use SBE=true [2024-11-09 19:49:27,719 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 19:49:27,719 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 19:49:27,720 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 19:49:27,720 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 19:49:27,721 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 19:49:27,721 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 19:49:27,721 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 19:49:27,722 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 19:49:27,722 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 19:49:27,722 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 19:49:27,723 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 19:49:27,723 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 19:49:27,723 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 19:49:27,724 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-09 19:49:27,724 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 19:49:27,724 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 19:49:27,724 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 19:49:27,725 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 19:49:27,725 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 19:49:27,725 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 19:49:27,726 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 19:49:27,726 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-09 19:49:27,726 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 19:49:27,726 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 19:49:27,727 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-09 19:49:27,727 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-09 19:49:27,728 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 19:49:27,728 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8e1a5ec7c69529be2d8c0f142d6c458fe9f526e0a4b1c8c2c339cb2c1b253dd3 [2024-11-09 19:49:27,978 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 19:49:28,003 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 19:49:28,006 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 19:49:28,007 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 19:49:28,007 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 19:49:28,008 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem16_label55.c [2024-11-09 19:49:29,342 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 19:49:29,707 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 19:49:29,708 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem16_label55.c [2024-11-09 19:49:29,728 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/77e364811/c3bdd31d34f84fa3b83fbb3306e59332/FLAG170bfc63b [2024-11-09 19:49:29,940 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/77e364811/c3bdd31d34f84fa3b83fbb3306e59332 [2024-11-09 19:49:29,945 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 19:49:29,947 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 19:49:29,948 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 19:49:29,948 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 19:49:29,952 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 19:49:29,952 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 07:49:29" (1/1) ... [2024-11-09 19:49:29,953 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@48fce42b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:49:29, skipping insertion in model container [2024-11-09 19:49:29,953 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 07:49:29" (1/1) ... [2024-11-09 19:49:30,017 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 19:49:30,257 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem16_label55.c[5995,6008] [2024-11-09 19:49:30,557 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 19:49:30,567 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 19:49:30,601 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem16_label55.c[5995,6008] [2024-11-09 19:49:30,783 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 19:49:30,802 INFO L204 MainTranslator]: Completed translation [2024-11-09 19:49:30,803 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:49:30 WrapperNode [2024-11-09 19:49:30,803 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 19:49:30,804 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 19:49:30,804 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 19:49:30,804 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 19:49:30,810 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:49:30" (1/1) ... [2024-11-09 19:49:30,841 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:49:30" (1/1) ... [2024-11-09 19:49:31,026 INFO L138 Inliner]: procedures = 15, calls = 9, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 1769 [2024-11-09 19:49:31,032 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 19:49:31,032 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 19:49:31,033 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 19:49:31,033 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 19:49:31,050 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:49:30" (1/1) ... [2024-11-09 19:49:31,054 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:49:30" (1/1) ... [2024-11-09 19:49:31,090 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:49:30" (1/1) ... [2024-11-09 19:49:31,239 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 19:49:31,239 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:49:30" (1/1) ... [2024-11-09 19:49:31,239 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:49:30" (1/1) ... [2024-11-09 19:49:31,300 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:49:30" (1/1) ... [2024-11-09 19:49:31,314 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:49:30" (1/1) ... [2024-11-09 19:49:31,331 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:49:30" (1/1) ... [2024-11-09 19:49:31,342 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:49:30" (1/1) ... [2024-11-09 19:49:31,367 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 19:49:31,369 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-09 19:49:31,369 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-09 19:49:31,369 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-09 19:49:31,370 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:49:30" (1/1) ... [2024-11-09 19:49:31,376 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 19:49:31,388 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 19:49:31,405 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 19:49:31,408 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 19:49:31,454 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 19:49:31,454 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-09 19:49:31,455 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 19:49:31,455 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 19:49:31,522 INFO L256 CfgBuilder]: Building ICFG [2024-11-09 19:49:31,524 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 19:49:33,961 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L1501: havoc calculate_output_#t~ret7#1; [2024-11-09 19:49:34,136 INFO L? ?]: Removed 757 outVars from TransFormulas that were not future-live. [2024-11-09 19:49:34,138 INFO L307 CfgBuilder]: Performing block encoding [2024-11-09 19:49:34,165 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 19:49:34,165 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-09 19:49:34,166 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.11 07:49:34 BoogieIcfgContainer [2024-11-09 19:49:34,166 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-09 19:49:34,171 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 19:49:34,171 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 19:49:34,175 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 19:49:34,175 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 07:49:29" (1/3) ... [2024-11-09 19:49:34,176 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e1509f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 07:49:34, skipping insertion in model container [2024-11-09 19:49:34,176 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:49:30" (2/3) ... [2024-11-09 19:49:34,176 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e1509f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 07:49:34, skipping insertion in model container [2024-11-09 19:49:34,176 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.11 07:49:34" (3/3) ... [2024-11-09 19:49:34,177 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem16_label55.c [2024-11-09 19:49:34,193 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 19:49:34,194 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 19:49:34,275 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 19:49:34,280 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;@baca809, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 19:49:34,280 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-09 19:49:34,286 INFO L276 IsEmpty]: Start isEmpty. Operand has 399 states, 397 states have (on average 2.4886649874055418) internal successors, (988), 398 states have internal predecessors, (988), 0 states have call successors, (0), 0 states 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 19:49:34,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-11-09 19:49:34,293 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:49:34,294 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:49:34,294 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:49:34,299 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:49:34,299 INFO L85 PathProgramCache]: Analyzing trace with hash -1130908137, now seen corresponding path program 1 times [2024-11-09 19:49:34,307 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:49:34,308 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1341722918] [2024-11-09 19:49:34,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:49:34,308 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:49:34,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:49:34,684 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 19:49:34,684 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:49:34,684 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1341722918] [2024-11-09 19:49:34,685 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1341722918] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:49:34,685 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:49:34,685 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 19:49:34,687 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1336533682] [2024-11-09 19:49:34,688 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:49:34,692 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:49:34,693 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:49:34,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:49:34,719 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:49:34,723 INFO L87 Difference]: Start difference. First operand has 399 states, 397 states have (on average 2.4886649874055418) internal successors, (988), 398 states have internal predecessors, (988), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 2 states have internal predecessors, (59), 0 states have call successors, (0), 0 states 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 19:49:36,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:49:36,877 INFO L93 Difference]: Finished difference Result 1128 states and 2895 transitions. [2024-11-09 19:49:36,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:49:36,879 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 2 states have internal predecessors, (59), 0 states have call successors, (0), 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 59 [2024-11-09 19:49:36,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:49:36,895 INFO L225 Difference]: With dead ends: 1128 [2024-11-09 19:49:36,895 INFO L226 Difference]: Without dead ends: 665 [2024-11-09 19:49:36,899 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 19:49:36,902 INFO L432 NwaCegarLoop]: 248 mSDtfsCounter, 592 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 1388 mSolverCounterSat, 450 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 592 SdHoareTripleChecker+Valid, 258 SdHoareTripleChecker+Invalid, 1838 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 450 IncrementalHoareTripleChecker+Valid, 1388 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-11-09 19:49:36,903 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [592 Valid, 258 Invalid, 1838 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [450 Valid, 1388 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-11-09 19:49:36,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 665 states. [2024-11-09 19:49:36,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 665 to 665. [2024-11-09 19:49:36,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 665 states, 664 states have (on average 2.305722891566265) internal successors, (1531), 664 states have internal predecessors, (1531), 0 states have call successors, (0), 0 states 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 19:49:36,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 665 states to 665 states and 1531 transitions. [2024-11-09 19:49:36,988 INFO L78 Accepts]: Start accepts. Automaton has 665 states and 1531 transitions. Word has length 59 [2024-11-09 19:49:36,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:49:36,989 INFO L471 AbstractCegarLoop]: Abstraction has 665 states and 1531 transitions. [2024-11-09 19:49:36,989 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 2 states have internal predecessors, (59), 0 states have call successors, (0), 0 states 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 19:49:36,989 INFO L276 IsEmpty]: Start isEmpty. Operand 665 states and 1531 transitions. [2024-11-09 19:49:36,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-11-09 19:49:36,993 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:49:36,993 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:49:36,994 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 19:49:36,994 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:49:36,995 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:49:36,995 INFO L85 PathProgramCache]: Analyzing trace with hash 1081045710, now seen corresponding path program 1 times [2024-11-09 19:49:36,995 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:49:36,995 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1568041173] [2024-11-09 19:49:36,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:49:36,996 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:49:37,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:49:37,239 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 55 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 19:49:37,241 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:49:37,241 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1568041173] [2024-11-09 19:49:37,241 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1568041173] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:49:37,241 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:49:37,241 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 19:49:37,242 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [584334714] [2024-11-09 19:49:37,242 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:49:37,243 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:49:37,243 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:49:37,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:49:37,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:49:37,244 INFO L87 Difference]: Start difference. First operand 665 states and 1531 transitions. Second operand has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 2 states have internal predecessors, (128), 0 states have call successors, (0), 0 states 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 19:49:39,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:49:39,134 INFO L93 Difference]: Finished difference Result 1988 states and 4587 transitions. [2024-11-09 19:49:39,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:49:39,134 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 2 states have internal predecessors, (128), 0 states have call successors, (0), 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 128 [2024-11-09 19:49:39,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:49:39,141 INFO L225 Difference]: With dead ends: 1988 [2024-11-09 19:49:39,141 INFO L226 Difference]: Without dead ends: 1325 [2024-11-09 19:49:39,143 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 19:49:39,144 INFO L432 NwaCegarLoop]: 153 mSDtfsCounter, 643 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 1335 mSolverCounterSat, 368 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 643 SdHoareTripleChecker+Valid, 158 SdHoareTripleChecker+Invalid, 1703 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 368 IncrementalHoareTripleChecker+Valid, 1335 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-09 19:49:39,145 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [643 Valid, 158 Invalid, 1703 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [368 Valid, 1335 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-09 19:49:39,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1325 states. [2024-11-09 19:49:39,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1325 to 1325. [2024-11-09 19:49:39,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1325 states, 1324 states have (on average 2.1646525679758306) internal successors, (2866), 1324 states have internal predecessors, (2866), 0 states have call successors, (0), 0 states 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 19:49:39,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1325 states to 1325 states and 2866 transitions. [2024-11-09 19:49:39,189 INFO L78 Accepts]: Start accepts. Automaton has 1325 states and 2866 transitions. Word has length 128 [2024-11-09 19:49:39,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:49:39,191 INFO L471 AbstractCegarLoop]: Abstraction has 1325 states and 2866 transitions. [2024-11-09 19:49:39,191 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 2 states have internal predecessors, (128), 0 states have call successors, (0), 0 states 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 19:49:39,191 INFO L276 IsEmpty]: Start isEmpty. Operand 1325 states and 2866 transitions. [2024-11-09 19:49:39,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-11-09 19:49:39,200 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:49:39,201 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:49:39,201 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-09 19:49:39,202 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:49:39,202 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:49:39,204 INFO L85 PathProgramCache]: Analyzing trace with hash -1230901470, now seen corresponding path program 1 times [2024-11-09 19:49:39,204 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:49:39,204 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [983473323] [2024-11-09 19:49:39,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:49:39,204 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:49:39,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:49:39,461 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 55 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 19:49:39,462 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:49:39,462 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [983473323] [2024-11-09 19:49:39,462 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [983473323] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:49:39,463 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:49:39,463 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 19:49:39,463 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1481789177] [2024-11-09 19:49:39,463 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:49:39,464 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:49:39,464 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:49:39,464 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:49:39,465 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:49:39,465 INFO L87 Difference]: Start difference. First operand 1325 states and 2866 transitions. Second operand has 3 states, 3 states have (on average 52.0) internal successors, (156), 2 states have internal predecessors, (156), 0 states have call successors, (0), 0 states 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 19:49:41,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:49:41,252 INFO L93 Difference]: Finished difference Result 3968 states and 8592 transitions. [2024-11-09 19:49:41,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:49:41,253 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 52.0) internal successors, (156), 2 states have internal predecessors, (156), 0 states have call successors, (0), 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 156 [2024-11-09 19:49:41,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:49:41,264 INFO L225 Difference]: With dead ends: 3968 [2024-11-09 19:49:41,264 INFO L226 Difference]: Without dead ends: 2645 [2024-11-09 19:49:41,267 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 19:49:41,269 INFO L432 NwaCegarLoop]: 75 mSDtfsCounter, 517 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 1458 mSolverCounterSat, 384 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 517 SdHoareTripleChecker+Valid, 80 SdHoareTripleChecker+Invalid, 1842 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 384 IncrementalHoareTripleChecker+Valid, 1458 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-09 19:49:41,270 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [517 Valid, 80 Invalid, 1842 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [384 Valid, 1458 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-09 19:49:41,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2645 states. [2024-11-09 19:49:41,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2645 to 2645. [2024-11-09 19:49:41,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2645 states, 2644 states have (on average 2.1164901664145233) internal successors, (5596), 2644 states have internal predecessors, (5596), 0 states have call successors, (0), 0 states 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 19:49:41,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2645 states to 2645 states and 5596 transitions. [2024-11-09 19:49:41,371 INFO L78 Accepts]: Start accepts. Automaton has 2645 states and 5596 transitions. Word has length 156 [2024-11-09 19:49:41,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:49:41,373 INFO L471 AbstractCegarLoop]: Abstraction has 2645 states and 5596 transitions. [2024-11-09 19:49:41,376 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.0) internal successors, (156), 2 states have internal predecessors, (156), 0 states have call successors, (0), 0 states 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 19:49:41,376 INFO L276 IsEmpty]: Start isEmpty. Operand 2645 states and 5596 transitions. [2024-11-09 19:49:41,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2024-11-09 19:49:41,381 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:49:41,381 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:49:41,381 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-09 19:49:41,382 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:49:41,382 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:49:41,382 INFO L85 PathProgramCache]: Analyzing trace with hash 58176792, now seen corresponding path program 1 times [2024-11-09 19:49:41,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:49:41,382 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [776304099] [2024-11-09 19:49:41,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:49:41,383 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:49:41,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:49:41,579 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 55 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 19:49:41,579 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:49:41,579 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [776304099] [2024-11-09 19:49:41,579 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [776304099] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:49:41,580 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:49:41,580 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 19:49:41,580 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [579319689] [2024-11-09 19:49:41,580 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:49:41,581 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:49:41,581 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:49:41,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:49:41,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:49:41,582 INFO L87 Difference]: Start difference. First operand 2645 states and 5596 transitions. Second operand has 3 states, 3 states have (on average 63.666666666666664) internal successors, (191), 2 states have internal predecessors, (191), 0 states have call successors, (0), 0 states 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 19:49:43,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:49:43,049 INFO L93 Difference]: Finished difference Result 6608 states and 13812 transitions. [2024-11-09 19:49:43,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:49:43,050 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 63.666666666666664) internal successors, (191), 2 states have internal predecessors, (191), 0 states have call successors, (0), 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 191 [2024-11-09 19:49:43,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:49:43,068 INFO L225 Difference]: With dead ends: 6608 [2024-11-09 19:49:43,068 INFO L226 Difference]: Without dead ends: 3965 [2024-11-09 19:49:43,072 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 19:49:43,073 INFO L432 NwaCegarLoop]: 81 mSDtfsCounter, 541 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 1407 mSolverCounterSat, 264 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 541 SdHoareTripleChecker+Valid, 86 SdHoareTripleChecker+Invalid, 1671 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 264 IncrementalHoareTripleChecker+Valid, 1407 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-09 19:49:43,074 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [541 Valid, 86 Invalid, 1671 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [264 Valid, 1407 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-09 19:49:43,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3965 states. [2024-11-09 19:49:43,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3965 to 3965. [2024-11-09 19:49:43,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3965 states, 3964 states have (on average 2.0095862764883954) internal successors, (7966), 3964 states have internal predecessors, (7966), 0 states have call successors, (0), 0 states 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 19:49:43,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3965 states to 3965 states and 7966 transitions. [2024-11-09 19:49:43,168 INFO L78 Accepts]: Start accepts. Automaton has 3965 states and 7966 transitions. Word has length 191 [2024-11-09 19:49:43,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:49:43,170 INFO L471 AbstractCegarLoop]: Abstraction has 3965 states and 7966 transitions. [2024-11-09 19:49:43,170 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 63.666666666666664) internal successors, (191), 2 states have internal predecessors, (191), 0 states have call successors, (0), 0 states 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 19:49:43,171 INFO L276 IsEmpty]: Start isEmpty. Operand 3965 states and 7966 transitions. [2024-11-09 19:49:43,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 296 [2024-11-09 19:49:43,177 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:49:43,177 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:49:43,178 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-09 19:49:43,178 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:49:43,178 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:49:43,178 INFO L85 PathProgramCache]: Analyzing trace with hash 833115472, now seen corresponding path program 1 times [2024-11-09 19:49:43,179 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:49:43,179 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1329006149] [2024-11-09 19:49:43,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:49:43,179 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:49:43,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:49:43,515 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 55 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 19:49:43,516 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:49:43,517 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1329006149] [2024-11-09 19:49:43,518 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1329006149] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:49:43,518 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:49:43,518 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 19:49:43,518 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1143927706] [2024-11-09 19:49:43,519 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:49:43,519 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:49:43,519 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:49:43,520 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:49:43,520 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:49:43,521 INFO L87 Difference]: Start difference. First operand 3965 states and 7966 transitions. Second operand has 3 states, 3 states have (on average 98.33333333333333) internal successors, (295), 3 states have internal predecessors, (295), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:49:45,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:49:45,456 INFO L93 Difference]: Finished difference Result 9578 states and 19465 transitions. [2024-11-09 19:49:45,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:49:45,457 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 98.33333333333333) internal successors, (295), 3 states have internal predecessors, (295), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 295 [2024-11-09 19:49:45,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:49:45,483 INFO L225 Difference]: With dead ends: 9578 [2024-11-09 19:49:45,484 INFO L226 Difference]: Without dead ends: 5615 [2024-11-09 19:49:45,489 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 19:49:45,491 INFO L432 NwaCegarLoop]: 854 mSDtfsCounter, 537 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 1535 mSolverCounterSat, 217 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 537 SdHoareTripleChecker+Valid, 862 SdHoareTripleChecker+Invalid, 1752 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 217 IncrementalHoareTripleChecker+Valid, 1535 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-09 19:49:45,493 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [537 Valid, 862 Invalid, 1752 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [217 Valid, 1535 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-09 19:49:45,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5615 states. [2024-11-09 19:49:45,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5615 to 5615. [2024-11-09 19:49:45,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5615 states, 5614 states have (on average 1.9729248307801923) internal successors, (11076), 5614 states have internal predecessors, (11076), 0 states have call successors, (0), 0 states 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 19:49:45,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5615 states to 5615 states and 11076 transitions. [2024-11-09 19:49:45,601 INFO L78 Accepts]: Start accepts. Automaton has 5615 states and 11076 transitions. Word has length 295 [2024-11-09 19:49:45,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:49:45,602 INFO L471 AbstractCegarLoop]: Abstraction has 5615 states and 11076 transitions. [2024-11-09 19:49:45,602 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 98.33333333333333) internal successors, (295), 3 states have internal predecessors, (295), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:49:45,603 INFO L276 IsEmpty]: Start isEmpty. Operand 5615 states and 11076 transitions. [2024-11-09 19:49:45,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 306 [2024-11-09 19:49:45,606 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:49:45,606 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:49:45,607 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-09 19:49:45,607 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:49:45,607 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:49:45,607 INFO L85 PathProgramCache]: Analyzing trace with hash 936717102, now seen corresponding path program 1 times [2024-11-09 19:49:45,607 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:49:45,608 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [982843036] [2024-11-09 19:49:45,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:49:45,608 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:49:45,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:49:46,163 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 55 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 19:49:46,163 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:49:46,163 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [982843036] [2024-11-09 19:49:46,163 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [982843036] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:49:46,164 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:49:46,164 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 19:49:46,164 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [228427573] [2024-11-09 19:49:46,164 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:49:46,164 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 19:49:46,164 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:49:46,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 19:49:46,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 19:49:46,167 INFO L87 Difference]: Start difference. First operand 5615 states and 11076 transitions. Second operand has 4 states, 4 states have (on average 76.25) internal successors, (305), 3 states have internal predecessors, (305), 0 states have call successors, (0), 0 states 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 19:49:48,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:49:48,048 INFO L93 Difference]: Finished difference Result 11558 states and 22754 transitions. [2024-11-09 19:49:48,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 19:49:48,049 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 76.25) internal successors, (305), 3 states have internal predecessors, (305), 0 states have call successors, (0), 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 305 [2024-11-09 19:49:48,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:49:48,079 INFO L225 Difference]: With dead ends: 11558 [2024-11-09 19:49:48,079 INFO L226 Difference]: Without dead ends: 5945 [2024-11-09 19:49:48,090 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 19:49:48,093 INFO L432 NwaCegarLoop]: 269 mSDtfsCounter, 389 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 2255 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 389 SdHoareTripleChecker+Valid, 328 SdHoareTripleChecker+Invalid, 2260 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 2255 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-09 19:49:48,094 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [389 Valid, 328 Invalid, 2260 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 2255 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-09 19:49:48,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5945 states. [2024-11-09 19:49:48,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5945 to 5945. [2024-11-09 19:49:48,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5945 states, 5944 states have (on average 1.9639973082099595) internal successors, (11674), 5944 states have internal predecessors, (11674), 0 states have call successors, (0), 0 states 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 19:49:48,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5945 states to 5945 states and 11674 transitions. [2024-11-09 19:49:48,199 INFO L78 Accepts]: Start accepts. Automaton has 5945 states and 11674 transitions. Word has length 305 [2024-11-09 19:49:48,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:49:48,200 INFO L471 AbstractCegarLoop]: Abstraction has 5945 states and 11674 transitions. [2024-11-09 19:49:48,200 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 76.25) internal successors, (305), 3 states have internal predecessors, (305), 0 states have call successors, (0), 0 states 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 19:49:48,201 INFO L276 IsEmpty]: Start isEmpty. Operand 5945 states and 11674 transitions. [2024-11-09 19:49:48,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 394 [2024-11-09 19:49:48,206 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:49:48,206 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-09 19:49:48,206 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-09 19:49:48,207 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:49:48,207 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:49:48,207 INFO L85 PathProgramCache]: Analyzing trace with hash -1187238549, now seen corresponding path program 1 times [2024-11-09 19:49:48,207 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:49:48,207 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1085467033] [2024-11-09 19:49:48,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:49:48,208 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:49:48,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:49:48,851 INFO L134 CoverageAnalysis]: Checked inductivity of 198 backedges. 198 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 19:49:48,853 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:49:48,853 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1085467033] [2024-11-09 19:49:48,853 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1085467033] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:49:48,853 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:49:48,854 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-09 19:49:48,854 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [5254528] [2024-11-09 19:49:48,854 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:49:48,855 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 19:49:48,855 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:49:48,855 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 19:49:48,856 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-09 19:49:48,856 INFO L87 Difference]: Start difference. First operand 5945 states and 11674 transitions. Second operand has 7 states, 7 states have (on average 56.142857142857146) internal successors, (393), 6 states have internal predecessors, (393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:49:51,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:49:51,160 INFO L93 Difference]: Finished difference Result 11421 states and 22337 transitions. [2024-11-09 19:49:51,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-09 19:49:51,161 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 56.142857142857146) internal successors, (393), 6 states have internal predecessors, (393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 393 [2024-11-09 19:49:51,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:49:51,173 INFO L225 Difference]: With dead ends: 11421 [2024-11-09 19:49:51,174 INFO L226 Difference]: Without dead ends: 5615 [2024-11-09 19:49:51,180 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-09 19:49:51,181 INFO L432 NwaCegarLoop]: 260 mSDtfsCounter, 573 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 3627 mSolverCounterSat, 359 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 573 SdHoareTripleChecker+Valid, 303 SdHoareTripleChecker+Invalid, 3986 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 359 IncrementalHoareTripleChecker+Valid, 3627 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-11-09 19:49:51,181 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [573 Valid, 303 Invalid, 3986 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [359 Valid, 3627 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-11-09 19:49:51,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5615 states. [2024-11-09 19:49:51,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5615 to 5615. [2024-11-09 19:49:51,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5615 states, 5614 states have (on average 1.8619522622016387) internal successors, (10453), 5614 states have internal predecessors, (10453), 0 states have call successors, (0), 0 states 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 19:49:51,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5615 states to 5615 states and 10453 transitions. [2024-11-09 19:49:51,264 INFO L78 Accepts]: Start accepts. Automaton has 5615 states and 10453 transitions. Word has length 393 [2024-11-09 19:49:51,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:49:51,265 INFO L471 AbstractCegarLoop]: Abstraction has 5615 states and 10453 transitions. [2024-11-09 19:49:51,265 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 56.142857142857146) internal successors, (393), 6 states have internal predecessors, (393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:49:51,265 INFO L276 IsEmpty]: Start isEmpty. Operand 5615 states and 10453 transitions. [2024-11-09 19:49:51,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 401 [2024-11-09 19:49:51,270 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:49:51,270 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:49:51,270 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-09 19:49:51,271 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:49:51,271 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:49:51,271 INFO L85 PathProgramCache]: Analyzing trace with hash -1323971855, now seen corresponding path program 1 times [2024-11-09 19:49:51,271 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:49:51,271 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [275925345] [2024-11-09 19:49:51,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:49:51,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:49:51,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:49:51,574 INFO L134 CoverageAnalysis]: Checked inductivity of 207 backedges. 111 proven. 0 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2024-11-09 19:49:51,575 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:49:51,575 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [275925345] [2024-11-09 19:49:51,575 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [275925345] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:49:51,576 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:49:51,576 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 19:49:51,577 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1035323025] [2024-11-09 19:49:51,577 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:49:51,577 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:49:51,577 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:49:51,578 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:49:51,578 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:49:51,578 INFO L87 Difference]: Start difference. First operand 5615 states and 10453 transitions. Second operand has 3 states, 3 states have (on average 101.66666666666667) internal successors, (305), 3 states have internal predecessors, (305), 0 states have call successors, (0), 0 states 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 19:49:52,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:49:52,959 INFO L93 Difference]: Finished difference Result 12878 states and 24102 transitions. [2024-11-09 19:49:52,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:49:52,959 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 101.66666666666667) internal successors, (305), 3 states have internal predecessors, (305), 0 states have call successors, (0), 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 400 [2024-11-09 19:49:52,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:49:52,973 INFO L225 Difference]: With dead ends: 12878 [2024-11-09 19:49:52,974 INFO L226 Difference]: Without dead ends: 7595 [2024-11-09 19:49:52,979 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 19:49:52,980 INFO L432 NwaCegarLoop]: 37 mSDtfsCounter, 554 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 1293 mSolverCounterSat, 120 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 554 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 1413 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 120 IncrementalHoareTripleChecker+Valid, 1293 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-09 19:49:52,980 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [554 Valid, 44 Invalid, 1413 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [120 Valid, 1293 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-09 19:49:52,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7595 states. [2024-11-09 19:49:53,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7595 to 7595. [2024-11-09 19:49:53,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7595 states, 7594 states have (on average 1.8671319462733738) internal successors, (14179), 7594 states have internal predecessors, (14179), 0 states have call successors, (0), 0 states 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 19:49:53,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7595 states to 7595 states and 14179 transitions. [2024-11-09 19:49:53,076 INFO L78 Accepts]: Start accepts. Automaton has 7595 states and 14179 transitions. Word has length 400 [2024-11-09 19:49:53,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:49:53,077 INFO L471 AbstractCegarLoop]: Abstraction has 7595 states and 14179 transitions. [2024-11-09 19:49:53,077 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 101.66666666666667) internal successors, (305), 3 states have internal predecessors, (305), 0 states have call successors, (0), 0 states 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 19:49:53,077 INFO L276 IsEmpty]: Start isEmpty. Operand 7595 states and 14179 transitions. [2024-11-09 19:49:53,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 455 [2024-11-09 19:49:53,084 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:49:53,084 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:49:53,084 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-09 19:49:53,084 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:49:53,085 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:49:53,085 INFO L85 PathProgramCache]: Analyzing trace with hash -1315910781, now seen corresponding path program 1 times [2024-11-09 19:49:53,085 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:49:53,085 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1852877006] [2024-11-09 19:49:53,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:49:53,086 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:49:53,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:49:53,742 INFO L134 CoverageAnalysis]: Checked inductivity of 269 backedges. 269 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 19:49:53,743 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:49:53,743 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1852877006] [2024-11-09 19:49:53,743 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1852877006] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:49:53,743 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:49:53,743 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 19:49:53,743 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2136366327] [2024-11-09 19:49:53,744 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:49:53,744 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 19:49:53,744 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:49:53,745 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 19:49:53,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 19:49:53,745 INFO L87 Difference]: Start difference. First operand 7595 states and 14179 transitions. Second operand has 4 states, 4 states have (on average 113.5) internal successors, (454), 3 states have internal predecessors, (454), 0 states have call successors, (0), 0 states 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 19:49:54,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:49:54,835 INFO L93 Difference]: Finished difference Result 15188 states and 28359 transitions. [2024-11-09 19:49:54,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:49:54,836 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 113.5) internal successors, (454), 3 states have internal predecessors, (454), 0 states have call successors, (0), 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 454 [2024-11-09 19:49:54,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:49:54,852 INFO L225 Difference]: With dead ends: 15188 [2024-11-09 19:49:54,853 INFO L226 Difference]: Without dead ends: 7925 [2024-11-09 19:49:54,860 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 19:49:54,861 INFO L432 NwaCegarLoop]: 110 mSDtfsCounter, 792 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 1283 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 792 SdHoareTripleChecker+Valid, 117 SdHoareTripleChecker+Invalid, 1286 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1283 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-09 19:49:54,861 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [792 Valid, 117 Invalid, 1286 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1283 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-09 19:49:54,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7925 states. [2024-11-09 19:49:54,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7925 to 7925. [2024-11-09 19:49:54,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7925 states, 7924 states have (on average 1.8643361938414942) internal successors, (14773), 7924 states have internal predecessors, (14773), 0 states have call successors, (0), 0 states 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 19:49:54,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7925 states to 7925 states and 14773 transitions. [2024-11-09 19:49:54,964 INFO L78 Accepts]: Start accepts. Automaton has 7925 states and 14773 transitions. Word has length 454 [2024-11-09 19:49:54,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:49:54,965 INFO L471 AbstractCegarLoop]: Abstraction has 7925 states and 14773 transitions. [2024-11-09 19:49:54,965 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 113.5) internal successors, (454), 3 states have internal predecessors, (454), 0 states have call successors, (0), 0 states 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 19:49:54,965 INFO L276 IsEmpty]: Start isEmpty. Operand 7925 states and 14773 transitions. [2024-11-09 19:49:54,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 516 [2024-11-09 19:49:54,972 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:49:54,972 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:49:54,973 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-09 19:49:54,973 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:49:54,973 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:49:54,973 INFO L85 PathProgramCache]: Analyzing trace with hash -1624291623, now seen corresponding path program 1 times [2024-11-09 19:49:54,973 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:49:54,974 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [960787297] [2024-11-09 19:49:54,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:49:54,974 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:49:55,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:49:55,365 INFO L134 CoverageAnalysis]: Checked inductivity of 330 backedges. 111 proven. 0 refuted. 0 times theorem prover too weak. 219 trivial. 0 not checked. [2024-11-09 19:49:55,366 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:49:55,366 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [960787297] [2024-11-09 19:49:55,366 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [960787297] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:49:55,366 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:49:55,366 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 19:49:55,366 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1287259875] [2024-11-09 19:49:55,367 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:49:55,368 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:49:55,368 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:49:55,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:49:55,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:49:55,372 INFO L87 Difference]: Start difference. First operand 7925 states and 14773 transitions. Second operand has 3 states, 3 states have (on average 99.0) internal successors, (297), 3 states have internal predecessors, (297), 0 states have call successors, (0), 0 states 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 19:49:56,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:49:56,625 INFO L93 Difference]: Finished difference Result 17168 states and 32148 transitions. [2024-11-09 19:49:56,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:49:56,625 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 99.0) internal successors, (297), 3 states have internal predecessors, (297), 0 states have call successors, (0), 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 515 [2024-11-09 19:49:56,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:49:56,644 INFO L225 Difference]: With dead ends: 17168 [2024-11-09 19:49:56,644 INFO L226 Difference]: Without dead ends: 9905 [2024-11-09 19:49:56,652 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 19:49:56,653 INFO L432 NwaCegarLoop]: 27 mSDtfsCounter, 555 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 1287 mSolverCounterSat, 149 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 555 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 1436 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 149 IncrementalHoareTripleChecker+Valid, 1287 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-09 19:49:56,653 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [555 Valid, 34 Invalid, 1436 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [149 Valid, 1287 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-09 19:49:56,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9905 states. [2024-11-09 19:49:56,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9905 to 9905. [2024-11-09 19:49:56,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9905 states, 9904 states have (on average 1.8712641357027464) internal successors, (18533), 9904 states have internal predecessors, (18533), 0 states have call successors, (0), 0 states 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 19:49:56,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9905 states to 9905 states and 18533 transitions. [2024-11-09 19:49:56,783 INFO L78 Accepts]: Start accepts. Automaton has 9905 states and 18533 transitions. Word has length 515 [2024-11-09 19:49:56,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:49:56,784 INFO L471 AbstractCegarLoop]: Abstraction has 9905 states and 18533 transitions. [2024-11-09 19:49:56,784 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 99.0) internal successors, (297), 3 states have internal predecessors, (297), 0 states have call successors, (0), 0 states 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 19:49:56,784 INFO L276 IsEmpty]: Start isEmpty. Operand 9905 states and 18533 transitions. [2024-11-09 19:49:56,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 560 [2024-11-09 19:49:56,793 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:49:56,794 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:49:56,794 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-09 19:49:56,795 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:49:56,795 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:49:56,795 INFO L85 PathProgramCache]: Analyzing trace with hash -324406846, now seen corresponding path program 1 times [2024-11-09 19:49:56,796 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:49:56,796 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [109015656] [2024-11-09 19:49:56,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:49:56,796 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:49:56,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:49:57,412 INFO L134 CoverageAnalysis]: Checked inductivity of 518 backedges. 0 proven. 177 refuted. 0 times theorem prover too weak. 341 trivial. 0 not checked. [2024-11-09 19:49:57,412 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:49:57,412 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [109015656] [2024-11-09 19:49:57,412 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [109015656] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 19:49:57,412 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1830907880] [2024-11-09 19:49:57,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:49:57,413 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 19:49:57,413 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 19:49:57,415 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 19:49:57,416 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-09 19:49:57,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:49:57,635 INFO L255 TraceCheckSpWp]: Trace formula consists of 674 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-09 19:49:57,656 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 19:49:58,340 INFO L134 CoverageAnalysis]: Checked inductivity of 518 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 518 trivial. 0 not checked. [2024-11-09 19:49:58,340 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 19:49:58,341 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1830907880] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:49:58,341 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 19:49:58,341 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 4 [2024-11-09 19:49:58,341 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1605539922] [2024-11-09 19:49:58,341 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:49:58,342 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:49:58,342 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:49:58,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:49:58,342 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-09 19:49:58,343 INFO L87 Difference]: Start difference. First operand 9905 states and 18533 transitions. Second operand has 3 states, 3 states have (on average 83.66666666666667) internal successors, (251), 2 states have internal predecessors, (251), 0 states have call successors, (0), 0 states 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 19:49:59,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:49:59,376 INFO L93 Difference]: Finished difference Result 12548 states and 23349 transitions. [2024-11-09 19:49:59,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:49:59,376 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 83.66666666666667) internal successors, (251), 2 states have internal predecessors, (251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 559 [2024-11-09 19:49:59,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:49:59,399 INFO L225 Difference]: With dead ends: 12548 [2024-11-09 19:49:59,399 INFO L226 Difference]: Without dead ends: 12545 [2024-11-09 19:49:59,404 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 561 GetRequests, 558 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-09 19:49:59,405 INFO L432 NwaCegarLoop]: 80 mSDtfsCounter, 369 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 1272 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 369 SdHoareTripleChecker+Valid, 87 SdHoareTripleChecker+Invalid, 1304 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 1272 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-09 19:49:59,405 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [369 Valid, 87 Invalid, 1304 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 1272 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-09 19:49:59,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12545 states. [2024-11-09 19:49:59,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12545 to 9905. [2024-11-09 19:49:59,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9905 states, 9904 states have (on average 1.871062197092084) internal successors, (18531), 9904 states have internal predecessors, (18531), 0 states have call successors, (0), 0 states 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 19:49:59,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9905 states to 9905 states and 18531 transitions. [2024-11-09 19:49:59,561 INFO L78 Accepts]: Start accepts. Automaton has 9905 states and 18531 transitions. Word has length 559 [2024-11-09 19:49:59,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:49:59,562 INFO L471 AbstractCegarLoop]: Abstraction has 9905 states and 18531 transitions. [2024-11-09 19:49:59,562 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 83.66666666666667) internal successors, (251), 2 states have internal predecessors, (251), 0 states have call successors, (0), 0 states 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 19:49:59,563 INFO L276 IsEmpty]: Start isEmpty. Operand 9905 states and 18531 transitions. [2024-11-09 19:49:59,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 943 [2024-11-09 19:49:59,581 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:49:59,582 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-09 19:49:59,602 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-09 19:49:59,783 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-11-09 19:49:59,784 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:49:59,784 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:49:59,785 INFO L85 PathProgramCache]: Analyzing trace with hash -1132364719, now seen corresponding path program 1 times [2024-11-09 19:49:59,785 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:49:59,785 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [846648279] [2024-11-09 19:49:59,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:49:59,785 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:49:59,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:50:00,472 INFO L134 CoverageAnalysis]: Checked inductivity of 1809 backedges. 1087 proven. 0 refuted. 0 times theorem prover too weak. 722 trivial. 0 not checked. [2024-11-09 19:50:00,473 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:50:00,473 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [846648279] [2024-11-09 19:50:00,473 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [846648279] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:50:00,473 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:50:00,473 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 19:50:00,473 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [27112867] [2024-11-09 19:50:00,474 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:50:00,474 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:50:00,475 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:50:00,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:50:00,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:50:00,475 INFO L87 Difference]: Start difference. First operand 9905 states and 18531 transitions. Second operand has 3 states, 3 states have (on average 156.0) internal successors, (468), 3 states have internal predecessors, (468), 0 states have call successors, (0), 0 states 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 19:50:01,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:50:01,725 INFO L93 Difference]: Finished difference Result 24098 states and 45294 transitions. [2024-11-09 19:50:01,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:50:01,725 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 156.0) internal successors, (468), 3 states have internal predecessors, (468), 0 states have call successors, (0), 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 942 [2024-11-09 19:50:01,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:50:01,753 INFO L225 Difference]: With dead ends: 24098 [2024-11-09 19:50:01,753 INFO L226 Difference]: Without dead ends: 12875 [2024-11-09 19:50:01,766 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:50:01,767 INFO L432 NwaCegarLoop]: 689 mSDtfsCounter, 532 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 1271 mSolverCounterSat, 93 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 532 SdHoareTripleChecker+Valid, 697 SdHoareTripleChecker+Invalid, 1364 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 93 IncrementalHoareTripleChecker+Valid, 1271 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-09 19:50:01,767 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [532 Valid, 697 Invalid, 1364 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [93 Valid, 1271 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-09 19:50:01,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12875 states. [2024-11-09 19:50:01,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12875 to 12215. [2024-11-09 19:50:01,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12215 states, 12214 states have (on average 1.8595873587686262) internal successors, (22713), 12214 states have internal predecessors, (22713), 0 states have call successors, (0), 0 states 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 19:50:01,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12215 states to 12215 states and 22713 transitions. [2024-11-09 19:50:01,913 INFO L78 Accepts]: Start accepts. Automaton has 12215 states and 22713 transitions. Word has length 942 [2024-11-09 19:50:01,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:50:01,915 INFO L471 AbstractCegarLoop]: Abstraction has 12215 states and 22713 transitions. [2024-11-09 19:50:01,915 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 156.0) internal successors, (468), 3 states have internal predecessors, (468), 0 states have call successors, (0), 0 states 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 19:50:01,915 INFO L276 IsEmpty]: Start isEmpty. Operand 12215 states and 22713 transitions. [2024-11-09 19:50:01,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1239 [2024-11-09 19:50:01,939 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:50:01,939 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:50:01,940 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-09 19:50:01,940 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:50:01,940 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:50:01,941 INFO L85 PathProgramCache]: Analyzing trace with hash -253055106, now seen corresponding path program 1 times [2024-11-09 19:50:01,941 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:50:01,941 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [555919671] [2024-11-09 19:50:01,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:50:01,941 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:50:02,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:50:03,605 INFO L134 CoverageAnalysis]: Checked inductivity of 2825 backedges. 1979 proven. 0 refuted. 0 times theorem prover too weak. 846 trivial. 0 not checked. [2024-11-09 19:50:03,605 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:50:03,605 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [555919671] [2024-11-09 19:50:03,605 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [555919671] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:50:03,605 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:50:03,605 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-09 19:50:03,606 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1344731110] [2024-11-09 19:50:03,606 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:50:03,607 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 19:50:03,607 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:50:03,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 19:50:03,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-09 19:50:03,608 INFO L87 Difference]: Start difference. First operand 12215 states and 22713 transitions. Second operand has 6 states, 6 states have (on average 116.16666666666667) internal successors, (697), 6 states have internal predecessors, (697), 0 states have call successors, (0), 0 states 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 19:50:05,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:50:05,169 INFO L93 Difference]: Finished difference Result 23769 states and 44237 transitions. [2024-11-09 19:50:05,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 19:50:05,169 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 116.16666666666667) internal successors, (697), 6 states have internal predecessors, (697), 0 states have call successors, (0), 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 1238 [2024-11-09 19:50:05,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:50:05,189 INFO L225 Difference]: With dead ends: 23769 [2024-11-09 19:50:05,190 INFO L226 Difference]: Without dead ends: 12216 [2024-11-09 19:50:05,199 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2024-11-09 19:50:05,200 INFO L432 NwaCegarLoop]: 695 mSDtfsCounter, 561 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 2400 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 561 SdHoareTripleChecker+Valid, 712 SdHoareTripleChecker+Invalid, 2414 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 2400 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-09 19:50:05,200 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [561 Valid, 712 Invalid, 2414 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 2400 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-09 19:50:05,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12216 states. [2024-11-09 19:50:05,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12216 to 12215. [2024-11-09 19:50:05,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12215 states, 12214 states have (on average 1.8577861470443753) internal successors, (22691), 12214 states have internal predecessors, (22691), 0 states have call successors, (0), 0 states 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 19:50:05,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12215 states to 12215 states and 22691 transitions. [2024-11-09 19:50:05,339 INFO L78 Accepts]: Start accepts. Automaton has 12215 states and 22691 transitions. Word has length 1238 [2024-11-09 19:50:05,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:50:05,340 INFO L471 AbstractCegarLoop]: Abstraction has 12215 states and 22691 transitions. [2024-11-09 19:50:05,340 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 116.16666666666667) internal successors, (697), 6 states have internal predecessors, (697), 0 states have call successors, (0), 0 states 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 19:50:05,341 INFO L276 IsEmpty]: Start isEmpty. Operand 12215 states and 22691 transitions. [2024-11-09 19:50:05,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1252 [2024-11-09 19:50:05,370 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:50:05,371 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:50:05,371 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-09 19:50:05,371 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:50:05,372 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:50:05,372 INFO L85 PathProgramCache]: Analyzing trace with hash 80123853, now seen corresponding path program 1 times [2024-11-09 19:50:05,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:50:05,372 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [991151328] [2024-11-09 19:50:05,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:50:05,373 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:50:05,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:50:06,824 INFO L134 CoverageAnalysis]: Checked inductivity of 2668 backedges. 1862 proven. 0 refuted. 0 times theorem prover too weak. 806 trivial. 0 not checked. [2024-11-09 19:50:06,825 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:50:06,825 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [991151328] [2024-11-09 19:50:06,825 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [991151328] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:50:06,825 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:50:06,825 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 19:50:06,826 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [861506721] [2024-11-09 19:50:06,826 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:50:06,827 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 19:50:06,827 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:50:06,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 19:50:06,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 19:50:06,828 INFO L87 Difference]: Start difference. First operand 12215 states and 22691 transitions. Second operand has 4 states, 4 states have (on average 174.0) internal successors, (696), 4 states have internal predecessors, (696), 0 states have call successors, (0), 0 states 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 19:50:08,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:50:08,280 INFO L93 Difference]: Finished difference Result 23776 states and 44200 transitions. [2024-11-09 19:50:08,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 19:50:08,281 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 174.0) internal successors, (696), 4 states have internal predecessors, (696), 0 states have call successors, (0), 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 1251 [2024-11-09 19:50:08,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:50:08,299 INFO L225 Difference]: With dead ends: 23776 [2024-11-09 19:50:08,300 INFO L226 Difference]: Without dead ends: 12223 [2024-11-09 19:50:08,310 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-09 19:50:08,310 INFO L432 NwaCegarLoop]: 695 mSDtfsCounter, 479 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 2379 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 479 SdHoareTripleChecker+Valid, 714 SdHoareTripleChecker+Invalid, 2402 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 2379 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-09 19:50:08,311 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [479 Valid, 714 Invalid, 2402 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 2379 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-09 19:50:08,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12223 states. [2024-11-09 19:50:08,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12223 to 11885. [2024-11-09 19:50:08,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11885 states, 11884 states have (on average 1.8588017502524403) internal successors, (22090), 11884 states have internal predecessors, (22090), 0 states have call successors, (0), 0 states 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 19:50:08,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11885 states to 11885 states and 22090 transitions. [2024-11-09 19:50:08,478 INFO L78 Accepts]: Start accepts. Automaton has 11885 states and 22090 transitions. Word has length 1251 [2024-11-09 19:50:08,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:50:08,479 INFO L471 AbstractCegarLoop]: Abstraction has 11885 states and 22090 transitions. [2024-11-09 19:50:08,479 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 174.0) internal successors, (696), 4 states have internal predecessors, (696), 0 states have call successors, (0), 0 states 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 19:50:08,479 INFO L276 IsEmpty]: Start isEmpty. Operand 11885 states and 22090 transitions. [2024-11-09 19:50:08,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1255 [2024-11-09 19:50:08,501 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:50:08,501 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:50:08,502 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-09 19:50:08,502 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:50:08,502 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:50:08,503 INFO L85 PathProgramCache]: Analyzing trace with hash 1169225882, now seen corresponding path program 1 times [2024-11-09 19:50:08,503 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:50:08,503 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [417413858] [2024-11-09 19:50:08,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:50:08,503 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:50:08,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:50:09,206 INFO L134 CoverageAnalysis]: Checked inductivity of 3020 backedges. 1192 proven. 0 refuted. 0 times theorem prover too weak. 1828 trivial. 0 not checked. [2024-11-09 19:50:09,206 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:50:09,207 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [417413858] [2024-11-09 19:50:09,207 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [417413858] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:50:09,207 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:50:09,207 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 19:50:09,207 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [314225785] [2024-11-09 19:50:09,207 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:50:09,208 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:50:09,208 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:50:09,209 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:50:09,209 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:50:09,210 INFO L87 Difference]: Start difference. First operand 11885 states and 22090 transitions. Second operand has 3 states, 3 states have (on average 161.33333333333334) internal successors, (484), 3 states have internal predecessors, (484), 0 states have call successors, (0), 0 states 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 19:50:10,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:50:10,298 INFO L93 Difference]: Finished difference Result 25745 states and 47860 transitions. [2024-11-09 19:50:10,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:50:10,299 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 161.33333333333334) internal successors, (484), 3 states have internal predecessors, (484), 0 states have call successors, (0), 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 1254 [2024-11-09 19:50:10,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:50:10,300 INFO L225 Difference]: With dead ends: 25745 [2024-11-09 19:50:10,300 INFO L226 Difference]: Without dead ends: 0 [2024-11-09 19:50:10,313 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 19:50:10,313 INFO L432 NwaCegarLoop]: 668 mSDtfsCounter, 432 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 1279 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 432 SdHoareTripleChecker+Valid, 674 SdHoareTripleChecker+Invalid, 1343 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 1279 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-09 19:50:10,314 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [432 Valid, 674 Invalid, 1343 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 1279 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-09 19:50:10,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-09 19:50:10,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-09 19:50:10,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:50:10,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-09 19:50:10,315 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 1254 [2024-11-09 19:50:10,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:50:10,315 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-09 19:50:10,315 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 161.33333333333334) internal successors, (484), 3 states have internal predecessors, (484), 0 states have call successors, (0), 0 states 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 19:50:10,316 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-09 19:50:10,316 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-09 19:50:10,318 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-09 19:50:10,319 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-09 19:50:10,322 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:50:10,324 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-09 19:50:10,586 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-09 19:50:10,602 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 07:50:10 BoogieIcfgContainer [2024-11-09 19:50:10,603 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-09 19:50:10,604 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 19:50:10,604 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 19:50:10,604 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 19:50:10,605 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.11 07:49:34" (3/4) ... [2024-11-09 19:50:10,607 INFO L143 WitnessPrinter]: Generating witness for correct program [2024-11-09 19:50:10,644 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2024-11-09 19:50:10,647 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-09 19:50:10,651 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-09 19:50:10,654 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-09 19:50:10,911 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-09 19:50:10,911 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-09 19:50:10,911 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 19:50:10,912 INFO L158 Benchmark]: Toolchain (without parser) took 40965.15ms. Allocated memory was 169.9MB in the beginning and 1.0GB in the end (delta: 876.6MB). Free memory was 134.6MB in the beginning and 543.4MB in the end (delta: -408.8MB). Peak memory consumption was 466.1MB. Max. memory is 16.1GB. [2024-11-09 19:50:10,912 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 117.4MB. Free memory was 90.8MB in the beginning and 90.7MB in the end (delta: 151.0kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 19:50:10,912 INFO L158 Benchmark]: CACSL2BoogieTranslator took 855.56ms. Allocated memory is still 169.9MB. Free memory was 134.0MB in the beginning and 69.0MB in the end (delta: 65.0MB). Peak memory consumption was 65.0MB. Max. memory is 16.1GB. [2024-11-09 19:50:10,912 INFO L158 Benchmark]: Boogie Procedure Inliner took 227.89ms. Allocated memory is still 169.9MB. Free memory was 69.0MB in the beginning and 124.8MB in the end (delta: -55.9MB). Peak memory consumption was 43.7MB. Max. memory is 16.1GB. [2024-11-09 19:50:10,913 INFO L158 Benchmark]: Boogie Preprocessor took 335.00ms. Allocated memory is still 169.9MB. Free memory was 124.8MB in the beginning and 94.8MB in the end (delta: 30.0MB). Peak memory consumption was 38.4MB. Max. memory is 16.1GB. [2024-11-09 19:50:10,913 INFO L158 Benchmark]: IcfgBuilder took 2797.27ms. Allocated memory was 169.9MB in the beginning and 287.3MB in the end (delta: 117.4MB). Free memory was 94.8MB in the beginning and 199.3MB in the end (delta: -104.4MB). Peak memory consumption was 139.6MB. Max. memory is 16.1GB. [2024-11-09 19:50:10,913 INFO L158 Benchmark]: TraceAbstraction took 36432.19ms. Allocated memory was 287.3MB in the beginning and 1.0GB in the end (delta: 759.2MB). Free memory was 198.2MB in the beginning and 585.3MB in the end (delta: -387.1MB). Peak memory consumption was 373.1MB. Max. memory is 16.1GB. [2024-11-09 19:50:10,914 INFO L158 Benchmark]: Witness Printer took 307.59ms. Allocated memory is still 1.0GB. Free memory was 585.3MB in the beginning and 543.4MB in the end (delta: 41.9MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. [2024-11-09 19:50:10,917 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 117.4MB. Free memory was 90.8MB in the beginning and 90.7MB in the end (delta: 151.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 855.56ms. Allocated memory is still 169.9MB. Free memory was 134.0MB in the beginning and 69.0MB in the end (delta: 65.0MB). Peak memory consumption was 65.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 227.89ms. Allocated memory is still 169.9MB. Free memory was 69.0MB in the beginning and 124.8MB in the end (delta: -55.9MB). Peak memory consumption was 43.7MB. Max. memory is 16.1GB. * Boogie Preprocessor took 335.00ms. Allocated memory is still 169.9MB. Free memory was 124.8MB in the beginning and 94.8MB in the end (delta: 30.0MB). Peak memory consumption was 38.4MB. Max. memory is 16.1GB. * IcfgBuilder took 2797.27ms. Allocated memory was 169.9MB in the beginning and 287.3MB in the end (delta: 117.4MB). Free memory was 94.8MB in the beginning and 199.3MB in the end (delta: -104.4MB). Peak memory consumption was 139.6MB. Max. memory is 16.1GB. * TraceAbstraction took 36432.19ms. Allocated memory was 287.3MB in the beginning and 1.0GB in the end (delta: 759.2MB). Free memory was 198.2MB in the beginning and 585.3MB in the end (delta: -387.1MB). Peak memory consumption was 373.1MB. Max. memory is 16.1GB. * Witness Printer took 307.59ms. Allocated memory is still 1.0GB. Free memory was 585.3MB in the beginning and 543.4MB in the end (delta: 41.9MB). Peak memory consumption was 39.8MB. 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: 188]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 399 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 36.1s, OverallIterations: 15, TraceHistogramMax: 8, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.2s, AutomataDifference: 24.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 8066 SdHoareTripleChecker+Valid, 22.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 8066 mSDsluCounter, 5154 SdHoareTripleChecker+Invalid, 18.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 213 mSDsCounter, 2545 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 25469 IncrementalHoareTripleChecker+Invalid, 28014 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2545 mSolverCounterUnsat, 4941 mSDtfsCounter, 25469 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 614 GetRequests, 582 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=12215occurred in iteration=12, InterpolantAutomatonStates: 55, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.5s AutomataMinimizationTime, 15 MinimizatonAttempts, 3639 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.4s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 8.2s InterpolantComputationTime, 8699 NumberOfCodeBlocks, 8699 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 8683 ConstructedInterpolants, 0 QuantifiedInterpolants, 25657 SizeOfPredicates, 0 NumberOfNonLiveVariables, 674 ConjunctsInSsa, 2 ConjunctsInUnsatCore, 16 InterpolantComputations, 15 PerfectInterpolantSequences, 12460/12637 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 1783]: Location Invariant Derived location invariant: null RESULT: Ultimate proved your program to be correct! [2024-11-09 19:50:10,946 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