./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.4.2.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8be7027f 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/seq-mthreaded-reduced/pals_opt-floodmax.4.2.ufo.UNBOUNDED.pals.c.v+cfa-reducer.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 a0830d37f242e09defcc4d2d6beb9093926cd5edb365bec0ac48d44d51893439 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dk.perfect-tracechecks-8be7027-m [2024-11-11 21:49:05,164 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-11 21:49:05,244 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-11 21:49:05,248 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-11 21:49:05,249 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-11 21:49:05,280 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-11 21:49:05,281 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-11 21:49:05,281 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-11 21:49:05,282 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-11 21:49:05,283 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-11 21:49:05,283 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-11 21:49:05,283 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-11 21:49:05,284 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-11 21:49:05,286 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-11 21:49:05,286 INFO L153 SettingsManager]: * Use SBE=true [2024-11-11 21:49:05,286 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-11 21:49:05,287 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-11 21:49:05,287 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-11 21:49:05,287 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-11 21:49:05,288 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-11 21:49:05,291 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-11 21:49:05,292 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-11 21:49:05,292 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-11 21:49:05,292 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-11 21:49:05,292 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-11 21:49:05,293 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-11 21:49:05,293 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-11 21:49:05,293 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-11 21:49:05,293 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-11 21:49:05,294 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-11 21:49:05,294 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-11 21:49:05,294 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-11 21:49:05,294 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-11 21:49:05,295 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-11 21:49:05,295 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-11 21:49:05,296 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-11 21:49:05,297 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-11 21:49:05,297 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-11 21:49:05,297 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-11 21:49:05,298 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-11 21:49:05,298 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-11 21:49:05,298 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-11 21:49:05,299 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a0830d37f242e09defcc4d2d6beb9093926cd5edb365bec0ac48d44d51893439 [2024-11-11 21:49:05,554 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-11 21:49:05,582 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-11 21:49:05,587 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-11 21:49:05,588 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-11 21:49:05,589 INFO L274 PluginConnector]: CDTParser initialized [2024-11-11 21:49:05,590 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.4.2.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c [2024-11-11 21:49:06,229 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-11 21:49:07,949 INFO L384 CDTParser]: Found 1 translation units. [2024-11-11 21:49:07,953 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.4.2.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c [2024-11-11 21:49:07,976 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4447f9826/74dc714e1fe447beb176f892c2fdb62e/FLAG461209a85 [2024-11-11 21:49:08,265 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4447f9826/74dc714e1fe447beb176f892c2fdb62e [2024-11-11 21:49:08,267 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-11 21:49:08,268 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-11 21:49:08,270 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-11 21:49:08,270 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-11 21:49:08,276 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-11 21:49:08,277 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 09:49:08" (1/1) ... [2024-11-11 21:49:08,278 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@34e5769a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 09:49:08, skipping insertion in model container [2024-11-11 21:49:08,278 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 09:49:08" (1/1) ... [2024-11-11 21:49:08,337 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-11 21:49:08,669 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/seq-mthreaded-reduced/pals_opt-floodmax.4.2.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c[13826,13839] [2024-11-11 21:49:08,796 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-11 21:49:08,820 INFO L200 MainTranslator]: Completed pre-run [2024-11-11 21:49:08,895 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/seq-mthreaded-reduced/pals_opt-floodmax.4.2.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c[13826,13839] [2024-11-11 21:49:08,952 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-11 21:49:08,989 INFO L204 MainTranslator]: Completed translation [2024-11-11 21:49:08,989 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 09:49:08 WrapperNode [2024-11-11 21:49:08,990 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-11 21:49:08,991 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-11 21:49:08,991 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-11 21:49:08,991 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-11 21:49:08,998 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 09:49:08" (1/1) ... [2024-11-11 21:49:09,018 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 09:49:08" (1/1) ... [2024-11-11 21:49:09,089 INFO L138 Inliner]: procedures = 24, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 1451 [2024-11-11 21:49:09,090 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-11 21:49:09,090 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-11 21:49:09,091 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-11 21:49:09,091 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-11 21:49:09,104 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 09:49:08" (1/1) ... [2024-11-11 21:49:09,104 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 09:49:08" (1/1) ... [2024-11-11 21:49:09,113 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 09:49:08" (1/1) ... [2024-11-11 21:49:09,139 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]. [2024-11-11 21:49:09,140 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 09:49:08" (1/1) ... [2024-11-11 21:49:09,140 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 09:49:08" (1/1) ... [2024-11-11 21:49:09,160 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 09:49:08" (1/1) ... [2024-11-11 21:49:09,175 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 09:49:08" (1/1) ... [2024-11-11 21:49:09,185 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 09:49:08" (1/1) ... [2024-11-11 21:49:09,192 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 09:49:08" (1/1) ... [2024-11-11 21:49:09,204 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-11 21:49:09,205 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-11 21:49:09,205 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-11 21:49:09,206 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-11 21:49:09,206 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 09:49:08" (1/1) ... [2024-11-11 21:49:09,218 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-11 21:49:09,231 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 21:49:09,248 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) [2024-11-11 21:49:09,251 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 [2024-11-11 21:49:09,303 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-11 21:49:09,304 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-11 21:49:09,304 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-11 21:49:09,304 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-11 21:49:09,501 INFO L238 CfgBuilder]: Building ICFG [2024-11-11 21:49:09,504 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-11 21:49:10,781 INFO L? ?]: Removed 123 outVars from TransFormulas that were not future-live. [2024-11-11 21:49:10,782 INFO L287 CfgBuilder]: Performing block encoding [2024-11-11 21:49:10,808 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-11 21:49:10,808 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-11 21:49:10,809 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 09:49:10 BoogieIcfgContainer [2024-11-11 21:49:10,809 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-11 21:49:10,812 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-11 21:49:10,812 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-11 21:49:10,815 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-11 21:49:10,815 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.11 09:49:08" (1/3) ... [2024-11-11 21:49:10,816 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@277fc64e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.11 09:49:10, skipping insertion in model container [2024-11-11 21:49:10,816 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 09:49:08" (2/3) ... [2024-11-11 21:49:10,816 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@277fc64e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.11 09:49:10, skipping insertion in model container [2024-11-11 21:49:10,816 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 09:49:10" (3/3) ... [2024-11-11 21:49:10,817 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_opt-floodmax.4.2.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c [2024-11-11 21:49:10,830 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-11 21:49:10,830 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-11 21:49:10,900 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-11 21:49:10,908 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;@19ad4dae, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-11 21:49:10,908 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-11 21:49:10,915 INFO L276 IsEmpty]: Start isEmpty. Operand has 350 states, 348 states have (on average 1.7873563218390804) internal successors, (622), 349 states have internal predecessors, (622), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 21:49:10,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-11-11 21:49:10,927 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 21:49:10,928 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 21:49:10,928 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 21:49:10,933 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 21:49:10,933 INFO L85 PathProgramCache]: Analyzing trace with hash 687624892, now seen corresponding path program 1 times [2024-11-11 21:49:10,943 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 21:49:10,943 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [236611415] [2024-11-11 21:49:10,943 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:49:10,944 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 21:49:11,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:49:11,742 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 21:49:11,743 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 21:49:11,744 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [236611415] [2024-11-11 21:49:11,745 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [236611415] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 21:49:11,745 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 21:49:11,745 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-11 21:49:11,747 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1474300636] [2024-11-11 21:49:11,748 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 21:49:11,753 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-11 21:49:11,754 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 21:49:11,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-11 21:49:11,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-11 21:49:11,785 INFO L87 Difference]: Start difference. First operand has 350 states, 348 states have (on average 1.7873563218390804) internal successors, (622), 349 states have internal predecessors, (622), 0 states have call successors, (0), 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 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 21:49:11,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 21:49:11,964 INFO L93 Difference]: Finished difference Result 652 states and 1124 transitions. [2024-11-11 21:49:11,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-11 21:49:11,968 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 0 states have call successors, (0), 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 118 [2024-11-11 21:49:11,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 21:49:11,982 INFO L225 Difference]: With dead ends: 652 [2024-11-11 21:49:11,982 INFO L226 Difference]: Without dead ends: 489 [2024-11-11 21:49:11,986 INFO L434 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 [2024-11-11 21:49:11,989 INFO L435 NwaCegarLoop]: 616 mSDtfsCounter, 266 mSDsluCounter, 530 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 266 SdHoareTripleChecker+Valid, 1146 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-11 21:49:11,990 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [266 Valid, 1146 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-11 21:49:12,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 489 states. [2024-11-11 21:49:12,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 489 to 486. [2024-11-11 21:49:12,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 486 states, 485 states have (on average 1.6515463917525772) internal successors, (801), 485 states have internal predecessors, (801), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 21:49:12,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 486 states to 486 states and 801 transitions. [2024-11-11 21:49:12,064 INFO L78 Accepts]: Start accepts. Automaton has 486 states and 801 transitions. Word has length 118 [2024-11-11 21:49:12,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 21:49:12,065 INFO L471 AbstractCegarLoop]: Abstraction has 486 states and 801 transitions. [2024-11-11 21:49:12,065 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 21:49:12,066 INFO L276 IsEmpty]: Start isEmpty. Operand 486 states and 801 transitions. [2024-11-11 21:49:12,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-11-11 21:49:12,069 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 21:49:12,070 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 21:49:12,070 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-11 21:49:12,071 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 21:49:12,072 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 21:49:12,072 INFO L85 PathProgramCache]: Analyzing trace with hash 787881554, now seen corresponding path program 1 times [2024-11-11 21:49:12,072 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 21:49:12,072 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1702036383] [2024-11-11 21:49:12,073 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:49:12,073 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 21:49:12,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:49:12,451 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 21:49:12,452 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 21:49:12,452 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1702036383] [2024-11-11 21:49:12,452 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1702036383] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 21:49:12,452 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 21:49:12,452 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-11 21:49:12,452 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [293061841] [2024-11-11 21:49:12,453 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 21:49:12,454 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-11 21:49:12,458 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 21:49:12,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-11 21:49:12,460 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-11 21:49:12,460 INFO L87 Difference]: Start difference. First operand 486 states and 801 transitions. Second operand has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 21:49:12,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 21:49:12,515 INFO L93 Difference]: Finished difference Result 1052 states and 1741 transitions. [2024-11-11 21:49:12,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-11 21:49:12,516 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 0 states have call successors, (0), 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 121 [2024-11-11 21:49:12,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 21:49:12,523 INFO L225 Difference]: With dead ends: 1052 [2024-11-11 21:49:12,523 INFO L226 Difference]: Without dead ends: 759 [2024-11-11 21:49:12,527 INFO L434 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 [2024-11-11 21:49:12,528 INFO L435 NwaCegarLoop]: 569 mSDtfsCounter, 229 mSDsluCounter, 527 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 229 SdHoareTripleChecker+Valid, 1096 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-11 21:49:12,528 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [229 Valid, 1096 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-11 21:49:12,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 759 states. [2024-11-11 21:49:12,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 759 to 755. [2024-11-11 21:49:12,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 755 states, 754 states have (on average 1.6525198938992043) internal successors, (1246), 754 states have internal predecessors, (1246), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 21:49:12,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 755 states to 755 states and 1246 transitions. [2024-11-11 21:49:12,557 INFO L78 Accepts]: Start accepts. Automaton has 755 states and 1246 transitions. Word has length 121 [2024-11-11 21:49:12,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 21:49:12,558 INFO L471 AbstractCegarLoop]: Abstraction has 755 states and 1246 transitions. [2024-11-11 21:49:12,558 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 21:49:12,558 INFO L276 IsEmpty]: Start isEmpty. Operand 755 states and 1246 transitions. [2024-11-11 21:49:12,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-11-11 21:49:12,561 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 21:49:12,561 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 21:49:12,561 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-11 21:49:12,561 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 21:49:12,563 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 21:49:12,565 INFO L85 PathProgramCache]: Analyzing trace with hash -1106896185, now seen corresponding path program 1 times [2024-11-11 21:49:12,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 21:49:12,565 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1052053755] [2024-11-11 21:49:12,565 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:49:12,565 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 21:49:12,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:49:12,809 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 21:49:12,810 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 21:49:12,810 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1052053755] [2024-11-11 21:49:12,810 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1052053755] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 21:49:12,811 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 21:49:12,811 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-11 21:49:12,811 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1236451363] [2024-11-11 21:49:12,811 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 21:49:12,812 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-11 21:49:12,812 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 21:49:12,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-11 21:49:12,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-11 21:49:12,816 INFO L87 Difference]: Start difference. First operand 755 states and 1246 transitions. Second operand has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 21:49:12,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 21:49:12,910 INFO L93 Difference]: Finished difference Result 1839 states and 3040 transitions. [2024-11-11 21:49:12,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-11 21:49:12,911 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 0 states have call successors, (0), 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 124 [2024-11-11 21:49:12,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 21:49:12,918 INFO L225 Difference]: With dead ends: 1839 [2024-11-11 21:49:12,919 INFO L226 Difference]: Without dead ends: 1277 [2024-11-11 21:49:12,922 INFO L434 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 [2024-11-11 21:49:12,925 INFO L435 NwaCegarLoop]: 569 mSDtfsCounter, 222 mSDsluCounter, 528 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 222 SdHoareTripleChecker+Valid, 1097 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-11 21:49:12,925 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [222 Valid, 1097 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-11 21:49:12,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1277 states. [2024-11-11 21:49:12,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1277 to 1271. [2024-11-11 21:49:12,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1271 states, 1270 states have (on average 1.6488188976377953) internal successors, (2094), 1270 states have internal predecessors, (2094), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 21:49:12,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1271 states to 1271 states and 2094 transitions. [2024-11-11 21:49:12,964 INFO L78 Accepts]: Start accepts. Automaton has 1271 states and 2094 transitions. Word has length 124 [2024-11-11 21:49:12,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 21:49:12,966 INFO L471 AbstractCegarLoop]: Abstraction has 1271 states and 2094 transitions. [2024-11-11 21:49:12,966 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 21:49:12,966 INFO L276 IsEmpty]: Start isEmpty. Operand 1271 states and 2094 transitions. [2024-11-11 21:49:12,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-11-11 21:49:12,970 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 21:49:12,970 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 21:49:12,971 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-11 21:49:12,971 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 21:49:12,972 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 21:49:12,972 INFO L85 PathProgramCache]: Analyzing trace with hash -854228413, now seen corresponding path program 1 times [2024-11-11 21:49:12,973 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 21:49:12,974 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2033280054] [2024-11-11 21:49:12,974 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:49:12,974 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 21:49:13,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:49:13,208 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 21:49:13,208 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 21:49:13,208 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2033280054] [2024-11-11 21:49:13,208 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2033280054] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 21:49:13,209 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 21:49:13,209 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-11 21:49:13,210 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [889082830] [2024-11-11 21:49:13,210 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 21:49:13,211 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-11 21:49:13,211 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 21:49:13,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-11 21:49:13,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-11 21:49:13,213 INFO L87 Difference]: Start difference. First operand 1271 states and 2094 transitions. Second operand has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 21:49:13,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 21:49:13,277 INFO L93 Difference]: Finished difference Result 3347 states and 5512 transitions. [2024-11-11 21:49:13,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-11 21:49:13,279 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 0 states have call successors, (0), 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 127 [2024-11-11 21:49:13,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 21:49:13,291 INFO L225 Difference]: With dead ends: 3347 [2024-11-11 21:49:13,291 INFO L226 Difference]: Without dead ends: 2269 [2024-11-11 21:49:13,293 INFO L434 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 [2024-11-11 21:49:13,294 INFO L435 NwaCegarLoop]: 569 mSDtfsCounter, 215 mSDsluCounter, 529 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 215 SdHoareTripleChecker+Valid, 1098 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-11 21:49:13,296 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [215 Valid, 1098 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-11 21:49:13,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2269 states. [2024-11-11 21:49:13,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2269 to 2259. [2024-11-11 21:49:13,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2259 states, 2258 states have (on average 1.6412754650132861) internal successors, (3706), 2258 states have internal predecessors, (3706), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 21:49:13,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2259 states to 2259 states and 3706 transitions. [2024-11-11 21:49:13,368 INFO L78 Accepts]: Start accepts. Automaton has 2259 states and 3706 transitions. Word has length 127 [2024-11-11 21:49:13,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 21:49:13,368 INFO L471 AbstractCegarLoop]: Abstraction has 2259 states and 3706 transitions. [2024-11-11 21:49:13,369 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 21:49:13,369 INFO L276 IsEmpty]: Start isEmpty. Operand 2259 states and 3706 transitions. [2024-11-11 21:49:13,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-11-11 21:49:13,371 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 21:49:13,371 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 21:49:13,371 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-11 21:49:13,372 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 21:49:13,373 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 21:49:13,373 INFO L85 PathProgramCache]: Analyzing trace with hash 996831134, now seen corresponding path program 1 times [2024-11-11 21:49:13,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 21:49:13,374 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [448986224] [2024-11-11 21:49:13,374 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:49:13,374 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 21:49:13,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:49:13,663 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 21:49:13,663 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 21:49:13,664 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [448986224] [2024-11-11 21:49:13,664 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [448986224] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 21:49:13,664 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 21:49:13,664 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-11 21:49:13,664 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1212065305] [2024-11-11 21:49:13,664 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 21:49:13,665 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-11 21:49:13,665 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 21:49:13,665 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-11 21:49:13,665 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-11 21:49:13,666 INFO L87 Difference]: Start difference. First operand 2259 states and 3706 transitions. Second operand has 6 states, 6 states have (on average 21.666666666666668) internal successors, (130), 6 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 21:49:14,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 21:49:14,036 INFO L93 Difference]: Finished difference Result 11839 states and 19570 transitions. [2024-11-11 21:49:14,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-11 21:49:14,037 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 21.666666666666668) internal successors, (130), 6 states have internal predecessors, (130), 0 states have call successors, (0), 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 130 [2024-11-11 21:49:14,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 21:49:14,077 INFO L225 Difference]: With dead ends: 11839 [2024-11-11 21:49:14,077 INFO L226 Difference]: Without dead ends: 9773 [2024-11-11 21:49:14,086 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-11-11 21:49:14,088 INFO L435 NwaCegarLoop]: 571 mSDtfsCounter, 2145 mSDsluCounter, 4278 mSDsCounter, 0 mSdLazyCounter, 175 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2145 SdHoareTripleChecker+Valid, 4849 SdHoareTripleChecker+Invalid, 183 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 175 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-11 21:49:14,088 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2145 Valid, 4849 Invalid, 183 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 175 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-11 21:49:14,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9773 states. [2024-11-11 21:49:14,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9773 to 4189. [2024-11-11 21:49:14,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4189 states, 4188 states have (on average 1.6411174785100286) internal successors, (6873), 4188 states have internal predecessors, (6873), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 21:49:14,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4189 states to 4189 states and 6873 transitions. [2024-11-11 21:49:14,254 INFO L78 Accepts]: Start accepts. Automaton has 4189 states and 6873 transitions. Word has length 130 [2024-11-11 21:49:14,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 21:49:14,255 INFO L471 AbstractCegarLoop]: Abstraction has 4189 states and 6873 transitions. [2024-11-11 21:49:14,255 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 21.666666666666668) internal successors, (130), 6 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 21:49:14,255 INFO L276 IsEmpty]: Start isEmpty. Operand 4189 states and 6873 transitions. [2024-11-11 21:49:14,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-11-11 21:49:14,258 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 21:49:14,259 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 21:49:14,259 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-11 21:49:14,259 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 21:49:14,260 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 21:49:14,260 INFO L85 PathProgramCache]: Analyzing trace with hash 769932088, now seen corresponding path program 1 times [2024-11-11 21:49:14,260 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 21:49:14,260 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [283405723] [2024-11-11 21:49:14,260 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:49:14,261 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 21:49:14,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:49:14,506 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 21:49:14,507 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 21:49:14,507 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [283405723] [2024-11-11 21:49:14,507 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [283405723] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 21:49:14,508 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 21:49:14,508 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-11 21:49:14,508 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1635037005] [2024-11-11 21:49:14,508 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 21:49:14,509 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-11 21:49:14,509 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 21:49:14,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-11 21:49:14,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-11 21:49:14,511 INFO L87 Difference]: Start difference. First operand 4189 states and 6873 transitions. Second operand has 4 states, 4 states have (on average 32.75) internal successors, (131), 4 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 21:49:14,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 21:49:14,655 INFO L93 Difference]: Finished difference Result 12287 states and 20261 transitions. [2024-11-11 21:49:14,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-11 21:49:14,656 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 32.75) internal successors, (131), 4 states have internal predecessors, (131), 0 states have call successors, (0), 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 131 [2024-11-11 21:49:14,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 21:49:14,693 INFO L225 Difference]: With dead ends: 12287 [2024-11-11 21:49:14,693 INFO L226 Difference]: Without dead ends: 8291 [2024-11-11 21:49:14,702 INFO L434 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 [2024-11-11 21:49:14,703 INFO L435 NwaCegarLoop]: 563 mSDtfsCounter, 754 mSDsluCounter, 1150 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 754 SdHoareTripleChecker+Valid, 1713 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-11 21:49:14,703 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [754 Valid, 1713 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-11 21:49:14,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8291 states. [2024-11-11 21:49:14,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8291 to 6223. [2024-11-11 21:49:14,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6223 states, 6222 states have (on average 1.6435229829636773) internal successors, (10226), 6222 states have internal predecessors, (10226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 21:49:14,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6223 states to 6223 states and 10226 transitions. [2024-11-11 21:49:14,890 INFO L78 Accepts]: Start accepts. Automaton has 6223 states and 10226 transitions. Word has length 131 [2024-11-11 21:49:14,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 21:49:14,891 INFO L471 AbstractCegarLoop]: Abstraction has 6223 states and 10226 transitions. [2024-11-11 21:49:14,891 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.75) internal successors, (131), 4 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 21:49:14,891 INFO L276 IsEmpty]: Start isEmpty. Operand 6223 states and 10226 transitions. [2024-11-11 21:49:14,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2024-11-11 21:49:14,895 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 21:49:14,895 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 21:49:14,895 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-11 21:49:14,896 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 21:49:14,896 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 21:49:14,896 INFO L85 PathProgramCache]: Analyzing trace with hash -1964413019, now seen corresponding path program 1 times [2024-11-11 21:49:14,896 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 21:49:14,897 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [348949464] [2024-11-11 21:49:14,897 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:49:14,897 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 21:49:14,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:49:15,118 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 21:49:15,118 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 21:49:15,118 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [348949464] [2024-11-11 21:49:15,119 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [348949464] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 21:49:15,119 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 21:49:15,119 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-11 21:49:15,119 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1235501974] [2024-11-11 21:49:15,119 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 21:49:15,120 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-11 21:49:15,120 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 21:49:15,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-11 21:49:15,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-11 21:49:15,121 INFO L87 Difference]: Start difference. First operand 6223 states and 10226 transitions. Second operand has 4 states, 4 states have (on average 33.0) internal successors, (132), 4 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 21:49:15,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 21:49:15,272 INFO L93 Difference]: Finished difference Result 18285 states and 30121 transitions. [2024-11-11 21:49:15,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-11 21:49:15,273 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 33.0) internal successors, (132), 4 states have internal predecessors, (132), 0 states have call successors, (0), 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 132 [2024-11-11 21:49:15,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 21:49:15,314 INFO L225 Difference]: With dead ends: 18285 [2024-11-11 21:49:15,315 INFO L226 Difference]: Without dead ends: 12255 [2024-11-11 21:49:15,328 INFO L434 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 [2024-11-11 21:49:15,329 INFO L435 NwaCegarLoop]: 567 mSDtfsCounter, 752 mSDsluCounter, 1207 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 752 SdHoareTripleChecker+Valid, 1774 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-11 21:49:15,330 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [752 Valid, 1774 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-11 21:49:15,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12255 states. [2024-11-11 21:49:15,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12255 to 9215. [2024-11-11 21:49:15,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9215 states, 9214 states have (on average 1.6418493596700674) internal successors, (15128), 9214 states have internal predecessors, (15128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 21:49:15,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9215 states to 9215 states and 15128 transitions. [2024-11-11 21:49:15,621 INFO L78 Accepts]: Start accepts. Automaton has 9215 states and 15128 transitions. Word has length 132 [2024-11-11 21:49:15,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 21:49:15,622 INFO L471 AbstractCegarLoop]: Abstraction has 9215 states and 15128 transitions. [2024-11-11 21:49:15,622 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 33.0) internal successors, (132), 4 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 21:49:15,622 INFO L276 IsEmpty]: Start isEmpty. Operand 9215 states and 15128 transitions. [2024-11-11 21:49:15,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-11-11 21:49:15,627 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 21:49:15,627 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 21:49:15,627 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-11 21:49:15,627 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 21:49:15,628 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 21:49:15,628 INFO L85 PathProgramCache]: Analyzing trace with hash -825207393, now seen corresponding path program 1 times [2024-11-11 21:49:15,628 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 21:49:15,628 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [622374160] [2024-11-11 21:49:15,628 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:49:15,629 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 21:49:15,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:49:15,824 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 21:49:15,825 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 21:49:15,825 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [622374160] [2024-11-11 21:49:15,825 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [622374160] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 21:49:15,825 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 21:49:15,825 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-11 21:49:15,826 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1486841406] [2024-11-11 21:49:15,826 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 21:49:15,826 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-11 21:49:15,826 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 21:49:15,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-11 21:49:15,827 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-11 21:49:15,827 INFO L87 Difference]: Start difference. First operand 9215 states and 15128 transitions. Second operand has 4 states, 4 states have (on average 33.25) internal successors, (133), 4 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 21:49:16,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 21:49:16,114 INFO L93 Difference]: Finished difference Result 27109 states and 44609 transitions. [2024-11-11 21:49:16,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-11 21:49:16,115 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 33.25) internal successors, (133), 4 states have internal predecessors, (133), 0 states have call successors, (0), 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 133 [2024-11-11 21:49:16,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 21:49:16,151 INFO L225 Difference]: With dead ends: 27109 [2024-11-11 21:49:16,151 INFO L226 Difference]: Without dead ends: 18087 [2024-11-11 21:49:16,165 INFO L434 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 [2024-11-11 21:49:16,165 INFO L435 NwaCegarLoop]: 561 mSDtfsCounter, 750 mSDsluCounter, 1335 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 750 SdHoareTripleChecker+Valid, 1896 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-11 21:49:16,166 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [750 Valid, 1896 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-11 21:49:16,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18087 states. [2024-11-11 21:49:16,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18087 to 13617. [2024-11-11 21:49:16,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13617 states, 13616 states have (on average 1.640129259694477) internal successors, (22332), 13616 states have internal predecessors, (22332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 21:49:16,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13617 states to 13617 states and 22332 transitions. [2024-11-11 21:49:16,515 INFO L78 Accepts]: Start accepts. Automaton has 13617 states and 22332 transitions. Word has length 133 [2024-11-11 21:49:16,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 21:49:16,516 INFO L471 AbstractCegarLoop]: Abstraction has 13617 states and 22332 transitions. [2024-11-11 21:49:16,516 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 33.25) internal successors, (133), 4 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 21:49:16,516 INFO L276 IsEmpty]: Start isEmpty. Operand 13617 states and 22332 transitions. [2024-11-11 21:49:16,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-11 21:49:16,522 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 21:49:16,523 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 21:49:16,523 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-11 21:49:16,523 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 21:49:16,524 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 21:49:16,524 INFO L85 PathProgramCache]: Analyzing trace with hash 2032293143, now seen corresponding path program 1 times [2024-11-11 21:49:16,524 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 21:49:16,524 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1850916524] [2024-11-11 21:49:16,524 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:49:16,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 21:49:16,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:49:16,673 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 21:49:16,674 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 21:49:16,674 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1850916524] [2024-11-11 21:49:16,674 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1850916524] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 21:49:16,674 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 21:49:16,675 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-11 21:49:16,675 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1083461694] [2024-11-11 21:49:16,675 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 21:49:16,675 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-11 21:49:16,676 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 21:49:16,676 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-11 21:49:16,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-11 21:49:16,677 INFO L87 Difference]: Start difference. First operand 13617 states and 22332 transitions. Second operand has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 21:49:16,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 21:49:16,807 INFO L93 Difference]: Finished difference Result 30205 states and 49579 transitions. [2024-11-11 21:49:16,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-11 21:49:16,808 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 0 states have call successors, (0), 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 134 [2024-11-11 21:49:16,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 21:49:16,853 INFO L225 Difference]: With dead ends: 30205 [2024-11-11 21:49:16,854 INFO L226 Difference]: Without dead ends: 20859 [2024-11-11 21:49:16,876 INFO L434 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 [2024-11-11 21:49:16,877 INFO L435 NwaCegarLoop]: 717 mSDtfsCounter, 228 mSDsluCounter, 526 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 228 SdHoareTripleChecker+Valid, 1243 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-11 21:49:16,877 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [228 Valid, 1243 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-11 21:49:16,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20859 states. [2024-11-11 21:49:17,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20859 to 20857. [2024-11-11 21:49:17,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20857 states, 20856 states have (on average 1.635548523206751) internal successors, (34111), 20856 states have internal predecessors, (34111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 21:49:17,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20857 states to 20857 states and 34111 transitions. [2024-11-11 21:49:17,327 INFO L78 Accepts]: Start accepts. Automaton has 20857 states and 34111 transitions. Word has length 134 [2024-11-11 21:49:17,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 21:49:17,328 INFO L471 AbstractCegarLoop]: Abstraction has 20857 states and 34111 transitions. [2024-11-11 21:49:17,329 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 21:49:17,329 INFO L276 IsEmpty]: Start isEmpty. Operand 20857 states and 34111 transitions. [2024-11-11 21:49:17,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-11 21:49:17,332 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 21:49:17,332 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 21:49:17,333 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-11 21:49:17,333 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 21:49:17,334 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 21:49:17,334 INFO L85 PathProgramCache]: Analyzing trace with hash 1085233451, now seen corresponding path program 1 times [2024-11-11 21:49:17,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 21:49:17,334 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1524025885] [2024-11-11 21:49:17,334 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:49:17,334 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 21:49:17,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:49:17,566 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 21:49:17,566 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 21:49:17,566 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1524025885] [2024-11-11 21:49:17,567 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1524025885] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 21:49:17,567 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 21:49:17,567 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-11 21:49:17,567 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [214366702] [2024-11-11 21:49:17,567 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 21:49:17,570 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-11 21:49:17,571 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 21:49:17,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-11 21:49:17,572 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-11 21:49:17,572 INFO L87 Difference]: Start difference. First operand 20857 states and 34111 transitions. Second operand has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 21:49:17,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 21:49:17,746 INFO L93 Difference]: Finished difference Result 46075 states and 75425 transitions. [2024-11-11 21:49:17,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-11 21:49:17,747 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 0 states have call successors, (0), 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 134 [2024-11-11 21:49:17,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 21:49:17,816 INFO L225 Difference]: With dead ends: 46075 [2024-11-11 21:49:17,816 INFO L226 Difference]: Without dead ends: 31711 [2024-11-11 21:49:17,844 INFO L434 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 [2024-11-11 21:49:17,845 INFO L435 NwaCegarLoop]: 683 mSDtfsCounter, 221 mSDsluCounter, 527 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 221 SdHoareTripleChecker+Valid, 1210 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-11 21:49:17,846 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [221 Valid, 1210 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-11 21:49:17,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31711 states. [2024-11-11 21:49:18,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31711 to 31709. [2024-11-11 21:49:18,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31709 states, 31708 states have (on average 1.6302825785290778) internal successors, (51693), 31708 states have internal predecessors, (51693), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 21:49:18,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31709 states to 31709 states and 51693 transitions. [2024-11-11 21:49:18,606 INFO L78 Accepts]: Start accepts. Automaton has 31709 states and 51693 transitions. Word has length 134 [2024-11-11 21:49:18,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 21:49:18,607 INFO L471 AbstractCegarLoop]: Abstraction has 31709 states and 51693 transitions. [2024-11-11 21:49:18,607 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 21:49:18,607 INFO L276 IsEmpty]: Start isEmpty. Operand 31709 states and 51693 transitions. [2024-11-11 21:49:18,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-11 21:49:18,609 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 21:49:18,610 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 21:49:18,610 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-11 21:49:18,610 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 21:49:18,611 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 21:49:18,611 INFO L85 PathProgramCache]: Analyzing trace with hash 1854132875, now seen corresponding path program 1 times [2024-11-11 21:49:18,611 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 21:49:18,611 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [978667633] [2024-11-11 21:49:18,611 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:49:18,612 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 21:49:18,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:49:18,757 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 21:49:18,758 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 21:49:18,758 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [978667633] [2024-11-11 21:49:18,758 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [978667633] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 21:49:18,758 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 21:49:18,758 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-11 21:49:18,759 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1108128808] [2024-11-11 21:49:18,759 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 21:49:18,759 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-11 21:49:18,759 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 21:49:18,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-11 21:49:18,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-11 21:49:18,760 INFO L87 Difference]: Start difference. First operand 31709 states and 51693 transitions. Second operand has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 21:49:19,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 21:49:19,129 INFO L93 Difference]: Finished difference Result 61885 states and 101019 transitions. [2024-11-11 21:49:19,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-11 21:49:19,130 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 0 states have call successors, (0), 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 134 [2024-11-11 21:49:19,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 21:49:19,219 INFO L225 Difference]: With dead ends: 61885 [2024-11-11 21:49:19,220 INFO L226 Difference]: Without dead ends: 44439 [2024-11-11 21:49:19,250 INFO L434 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 [2024-11-11 21:49:19,253 INFO L435 NwaCegarLoop]: 650 mSDtfsCounter, 214 mSDsluCounter, 528 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 214 SdHoareTripleChecker+Valid, 1178 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-11 21:49:19,253 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [214 Valid, 1178 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-11 21:49:19,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44439 states. [2024-11-11 21:49:19,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44439 to 44437. [2024-11-11 21:49:19,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44437 states, 44436 states have (on average 1.6252362948960302) internal successors, (72219), 44436 states have internal predecessors, (72219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 21:49:20,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44437 states to 44437 states and 72219 transitions. [2024-11-11 21:49:20,244 INFO L78 Accepts]: Start accepts. Automaton has 44437 states and 72219 transitions. Word has length 134 [2024-11-11 21:49:20,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 21:49:20,245 INFO L471 AbstractCegarLoop]: Abstraction has 44437 states and 72219 transitions. [2024-11-11 21:49:20,245 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 21:49:20,245 INFO L276 IsEmpty]: Start isEmpty. Operand 44437 states and 72219 transitions. [2024-11-11 21:49:20,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-11 21:49:20,247 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 21:49:20,247 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 21:49:20,247 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-11 21:49:20,248 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 21:49:20,251 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 21:49:20,252 INFO L85 PathProgramCache]: Analyzing trace with hash 134986668, now seen corresponding path program 1 times [2024-11-11 21:49:20,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 21:49:20,252 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [856889884] [2024-11-11 21:49:20,252 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:49:20,252 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 21:49:20,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:49:20,510 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 21:49:20,511 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 21:49:20,511 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [856889884] [2024-11-11 21:49:20,511 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [856889884] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 21:49:20,512 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 21:49:20,512 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-11 21:49:20,512 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1110746316] [2024-11-11 21:49:20,512 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 21:49:20,513 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-11 21:49:20,513 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 21:49:20,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-11 21:49:20,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-11 21:49:20,514 INFO L87 Difference]: Start difference. First operand 44437 states and 72219 transitions. Second operand has 4 states, 4 states have (on average 33.5) internal successors, (134), 4 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 21:49:21,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 21:49:21,427 INFO L93 Difference]: Finished difference Result 141593 states and 230510 transitions. [2024-11-11 21:49:21,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-11 21:49:21,428 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 33.5) internal successors, (134), 4 states have internal predecessors, (134), 0 states have call successors, (0), 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 134 [2024-11-11 21:49:21,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 21:49:21,682 INFO L225 Difference]: With dead ends: 141593 [2024-11-11 21:49:21,683 INFO L226 Difference]: Without dead ends: 97569 [2024-11-11 21:49:21,730 INFO L434 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 [2024-11-11 21:49:21,732 INFO L435 NwaCegarLoop]: 561 mSDtfsCounter, 748 mSDsluCounter, 1337 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 748 SdHoareTripleChecker+Valid, 1898 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-11 21:49:21,732 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [748 Valid, 1898 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-11 21:49:21,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97569 states. [2024-11-11 21:49:23,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97569 to 70869. [2024-11-11 21:49:23,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70869 states, 70868 states have (on average 1.6215922560252864) internal successors, (114919), 70868 states have internal predecessors, (114919), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 21:49:23,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70869 states to 70869 states and 114919 transitions. [2024-11-11 21:49:23,600 INFO L78 Accepts]: Start accepts. Automaton has 70869 states and 114919 transitions. Word has length 134 [2024-11-11 21:49:23,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 21:49:23,600 INFO L471 AbstractCegarLoop]: Abstraction has 70869 states and 114919 transitions. [2024-11-11 21:49:23,601 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 33.5) internal successors, (134), 4 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 21:49:23,601 INFO L276 IsEmpty]: Start isEmpty. Operand 70869 states and 114919 transitions. [2024-11-11 21:49:23,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-11 21:49:23,607 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 21:49:23,607 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 21:49:23,608 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-11 21:49:23,608 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 21:49:23,608 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 21:49:23,608 INFO L85 PathProgramCache]: Analyzing trace with hash -415568993, now seen corresponding path program 1 times [2024-11-11 21:49:23,608 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 21:49:23,608 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1338224704] [2024-11-11 21:49:23,609 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:49:23,609 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 21:49:23,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:49:23,726 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 21:49:23,726 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 21:49:23,726 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1338224704] [2024-11-11 21:49:23,726 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1338224704] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 21:49:23,727 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 21:49:23,727 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-11 21:49:23,727 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [566009732] [2024-11-11 21:49:23,727 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 21:49:23,728 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-11 21:49:23,728 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 21:49:23,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-11 21:49:23,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-11 21:49:23,729 INFO L87 Difference]: Start difference. First operand 70869 states and 114919 transitions. Second operand has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 21:49:24,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 21:49:24,135 INFO L93 Difference]: Finished difference Result 156082 states and 254329 transitions. [2024-11-11 21:49:24,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-11 21:49:24,135 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 0 states have call successors, (0), 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 134 [2024-11-11 21:49:24,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 21:49:24,369 INFO L225 Difference]: With dead ends: 156082 [2024-11-11 21:49:24,369 INFO L226 Difference]: Without dead ends: 105867 [2024-11-11 21:49:24,460 INFO L434 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 [2024-11-11 21:49:24,461 INFO L435 NwaCegarLoop]: 764 mSDtfsCounter, 235 mSDsluCounter, 525 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 235 SdHoareTripleChecker+Valid, 1289 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-11 21:49:24,462 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [235 Valid, 1289 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-11 21:49:24,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105867 states. [2024-11-11 21:49:26,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105867 to 105865. [2024-11-11 21:49:26,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105865 states, 105864 states have (on average 1.6187655860349128) internal successors, (171369), 105864 states have internal predecessors, (171369), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 21:49:26,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105865 states to 105865 states and 171369 transitions. [2024-11-11 21:49:26,840 INFO L78 Accepts]: Start accepts. Automaton has 105865 states and 171369 transitions. Word has length 134 [2024-11-11 21:49:26,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 21:49:26,841 INFO L471 AbstractCegarLoop]: Abstraction has 105865 states and 171369 transitions. [2024-11-11 21:49:26,841 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 21:49:26,841 INFO L276 IsEmpty]: Start isEmpty. Operand 105865 states and 171369 transitions. [2024-11-11 21:49:26,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-11-11 21:49:26,842 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 21:49:26,842 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 21:49:26,842 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-11 21:49:26,843 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 21:49:26,843 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 21:49:26,843 INFO L85 PathProgramCache]: Analyzing trace with hash -644135267, now seen corresponding path program 1 times [2024-11-11 21:49:26,843 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 21:49:26,843 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2036537900] [2024-11-11 21:49:26,844 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:49:26,844 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 21:49:26,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:49:27,339 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 21:49:27,339 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 21:49:27,340 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2036537900] [2024-11-11 21:49:27,340 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2036537900] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 21:49:27,340 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 21:49:27,340 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-11 21:49:27,340 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [318095554] [2024-11-11 21:49:27,340 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 21:49:27,341 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-11 21:49:27,341 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 21:49:27,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-11 21:49:27,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-11 21:49:27,342 INFO L87 Difference]: Start difference. First operand 105865 states and 171369 transitions. Second operand has 6 states, 6 states have (on average 22.666666666666668) internal successors, (136), 6 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 21:49:28,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 21:49:28,272 INFO L93 Difference]: Finished difference Result 211471 states and 342322 transitions. [2024-11-11 21:49:28,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-11 21:49:28,273 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 22.666666666666668) internal successors, (136), 6 states have internal predecessors, (136), 0 states have call successors, (0), 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 136 [2024-11-11 21:49:28,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 21:49:28,938 INFO L225 Difference]: With dead ends: 211471 [2024-11-11 21:49:28,938 INFO L226 Difference]: Without dead ends: 105867 [2024-11-11 21:49:29,008 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2024-11-11 21:49:29,009 INFO L435 NwaCegarLoop]: 568 mSDtfsCounter, 220 mSDsluCounter, 2140 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 220 SdHoareTripleChecker+Valid, 2708 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-11 21:49:29,009 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [220 Valid, 2708 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-11 21:49:29,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105867 states. [2024-11-11 21:49:30,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105867 to 105865. [2024-11-11 21:49:30,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105865 states, 105864 states have (on average 1.6128617849316105) internal successors, (170744), 105864 states have internal predecessors, (170744), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 21:49:30,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105865 states to 105865 states and 170744 transitions. [2024-11-11 21:49:30,336 INFO L78 Accepts]: Start accepts. Automaton has 105865 states and 170744 transitions. Word has length 136 [2024-11-11 21:49:30,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 21:49:30,336 INFO L471 AbstractCegarLoop]: Abstraction has 105865 states and 170744 transitions. [2024-11-11 21:49:30,336 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 22.666666666666668) internal successors, (136), 6 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 21:49:30,336 INFO L276 IsEmpty]: Start isEmpty. Operand 105865 states and 170744 transitions. [2024-11-11 21:49:30,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-11 21:49:30,337 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 21:49:30,337 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 21:49:30,338 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-11 21:49:30,338 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 21:49:30,338 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 21:49:30,338 INFO L85 PathProgramCache]: Analyzing trace with hash -1568193423, now seen corresponding path program 1 times [2024-11-11 21:49:30,338 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 21:49:30,339 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1550987261] [2024-11-11 21:49:30,339 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:49:30,339 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 21:49:30,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:49:30,711 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 21:49:30,712 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 21:49:30,712 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1550987261] [2024-11-11 21:49:30,712 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1550987261] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 21:49:30,712 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 21:49:30,712 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-11 21:49:30,712 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1369361676] [2024-11-11 21:49:30,712 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 21:49:30,713 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-11 21:49:30,713 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 21:49:30,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-11 21:49:30,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-11 21:49:30,713 INFO L87 Difference]: Start difference. First operand 105865 states and 170744 transitions. Second operand has 6 states, 6 states have (on average 23.166666666666668) internal successors, (139), 6 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 21:49:32,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 21:49:32,059 INFO L93 Difference]: Finished difference Result 309469 states and 499582 transitions. [2024-11-11 21:49:32,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-11 21:49:32,060 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 23.166666666666668) internal successors, (139), 6 states have internal predecessors, (139), 0 states have call successors, (0), 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 139 [2024-11-11 21:49:32,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 21:49:32,439 INFO L225 Difference]: With dead ends: 309469 [2024-11-11 21:49:32,439 INFO L226 Difference]: Without dead ends: 203865 [2024-11-11 21:49:32,554 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2024-11-11 21:49:32,555 INFO L435 NwaCegarLoop]: 561 mSDtfsCounter, 218 mSDsluCounter, 2164 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 218 SdHoareTripleChecker+Valid, 2725 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-11 21:49:32,556 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [218 Valid, 2725 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-11 21:49:32,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203865 states. [2024-11-11 21:49:36,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 203865 to 203863. [2024-11-11 21:49:36,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 203863 states, 203862 states have (on average 1.6051888041910705) internal successors, (327237), 203862 states have internal predecessors, (327237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 21:49:36,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203863 states to 203863 states and 327237 transitions. [2024-11-11 21:49:36,787 INFO L78 Accepts]: Start accepts. Automaton has 203863 states and 327237 transitions. Word has length 139 [2024-11-11 21:49:36,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 21:49:36,787 INFO L471 AbstractCegarLoop]: Abstraction has 203863 states and 327237 transitions. [2024-11-11 21:49:36,788 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 23.166666666666668) internal successors, (139), 6 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 21:49:36,788 INFO L276 IsEmpty]: Start isEmpty. Operand 203863 states and 327237 transitions. [2024-11-11 21:49:36,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-11-11 21:49:36,789 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 21:49:36,789 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 21:49:36,789 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-11 21:49:36,789 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 21:49:36,790 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 21:49:36,790 INFO L85 PathProgramCache]: Analyzing trace with hash -1371264934, now seen corresponding path program 1 times [2024-11-11 21:49:36,790 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 21:49:36,790 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1826255428] [2024-11-11 21:49:36,790 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:49:36,790 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 21:49:36,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:49:37,413 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 21:49:37,414 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 21:49:37,414 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1826255428] [2024-11-11 21:49:37,416 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1826255428] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 21:49:37,416 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 21:49:37,416 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-11 21:49:37,416 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1155138318] [2024-11-11 21:49:37,416 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 21:49:37,417 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-11 21:49:37,417 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 21:49:37,417 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-11 21:49:37,417 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-11 21:49:37,418 INFO L87 Difference]: Start difference. First operand 203863 states and 327237 transitions. Second operand has 5 states, 5 states have (on average 28.0) internal successors, (140), 5 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 21:49:38,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 21:49:38,667 INFO L93 Difference]: Finished difference Result 207737 states and 333046 transitions. [2024-11-11 21:49:38,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-11 21:49:38,668 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.0) internal successors, (140), 5 states have internal predecessors, (140), 0 states have call successors, (0), 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 140 [2024-11-11 21:49:38,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 21:49:39,063 INFO L225 Difference]: With dead ends: 207737 [2024-11-11 21:49:39,064 INFO L226 Difference]: Without dead ends: 207735 [2024-11-11 21:49:39,130 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-11 21:49:39,130 INFO L435 NwaCegarLoop]: 569 mSDtfsCounter, 0 mSDsluCounter, 1690 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2259 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-11 21:49:39,131 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2259 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-11 21:49:39,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207735 states. [2024-11-11 21:49:41,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207735 to 207735. [2024-11-11 21:49:42,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 207735 states, 207734 states have (on average 1.5937785822253459) internal successors, (331082), 207734 states have internal predecessors, (331082), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 21:49:42,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207735 states to 207735 states and 331082 transitions. [2024-11-11 21:49:42,493 INFO L78 Accepts]: Start accepts. Automaton has 207735 states and 331082 transitions. Word has length 140 [2024-11-11 21:49:42,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 21:49:42,494 INFO L471 AbstractCegarLoop]: Abstraction has 207735 states and 331082 transitions. [2024-11-11 21:49:42,494 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.0) internal successors, (140), 5 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 21:49:42,494 INFO L276 IsEmpty]: Start isEmpty. Operand 207735 states and 331082 transitions. [2024-11-11 21:49:42,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2024-11-11 21:49:42,499 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 21:49:42,500 INFO L218 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 21:49:42,500 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-11 21:49:42,500 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 21:49:42,500 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 21:49:42,500 INFO L85 PathProgramCache]: Analyzing trace with hash 716470383, now seen corresponding path program 1 times [2024-11-11 21:49:42,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 21:49:42,501 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1840651047] [2024-11-11 21:49:42,501 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:49:42,501 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 21:49:42,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:49:42,802 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-11 21:49:42,803 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 21:49:42,803 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1840651047] [2024-11-11 21:49:42,803 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1840651047] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 21:49:42,803 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 21:49:42,803 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-11 21:49:42,803 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2097693080] [2024-11-11 21:49:42,804 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 21:49:42,804 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-11 21:49:42,804 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 21:49:42,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-11 21:49:42,805 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-11 21:49:42,806 INFO L87 Difference]: Start difference. First operand 207735 states and 331082 transitions. Second operand has 6 states, 6 states have (on average 28.0) internal successors, (168), 6 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 21:49:46,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 21:49:46,300 INFO L93 Difference]: Finished difference Result 565657 states and 903743 transitions. [2024-11-11 21:49:46,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-11 21:49:46,301 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 28.0) internal successors, (168), 6 states have internal predecessors, (168), 0 states have call successors, (0), 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 176 [2024-11-11 21:49:46,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 21:49:47,359 INFO L225 Difference]: With dead ends: 565657 [2024-11-11 21:49:47,359 INFO L226 Difference]: Without dead ends: 474405 [2024-11-11 21:49:47,440 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2024-11-11 21:49:47,441 INFO L435 NwaCegarLoop]: 825 mSDtfsCounter, 1501 mSDsluCounter, 2656 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1501 SdHoareTripleChecker+Valid, 3481 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-11 21:49:47,441 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1501 Valid, 3481 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-11 21:49:47,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 474405 states. [2024-11-11 21:49:53,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 474405 to 333615. [2024-11-11 21:49:53,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 333615 states, 333614 states have (on average 1.5922473277500344) internal successors, (531196), 333614 states have internal predecessors, (531196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 21:49:54,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 333615 states to 333615 states and 531196 transitions. [2024-11-11 21:49:54,146 INFO L78 Accepts]: Start accepts. Automaton has 333615 states and 531196 transitions. Word has length 176 [2024-11-11 21:49:54,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 21:49:54,146 INFO L471 AbstractCegarLoop]: Abstraction has 333615 states and 531196 transitions. [2024-11-11 21:49:54,146 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 28.0) internal successors, (168), 6 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 21:49:54,147 INFO L276 IsEmpty]: Start isEmpty. Operand 333615 states and 531196 transitions. [2024-11-11 21:49:54,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2024-11-11 21:49:54,151 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 21:49:54,152 INFO L218 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 21:49:54,152 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-11 21:49:54,152 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 21:49:54,152 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 21:49:54,153 INFO L85 PathProgramCache]: Analyzing trace with hash -230589309, now seen corresponding path program 1 times [2024-11-11 21:49:54,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 21:49:54,153 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [592206661] [2024-11-11 21:49:54,153 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:49:54,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 21:49:54,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:49:54,400 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-11 21:49:54,400 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 21:49:54,400 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [592206661] [2024-11-11 21:49:54,401 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [592206661] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 21:49:54,401 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 21:49:54,401 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-11 21:49:54,401 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [289967821] [2024-11-11 21:49:54,401 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 21:49:54,402 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-11 21:49:54,402 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 21:49:54,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-11 21:49:54,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-11 21:49:54,403 INFO L87 Difference]: Start difference. First operand 333615 states and 531196 transitions. Second operand has 6 states, 6 states have (on average 26.833333333333332) internal successors, (161), 6 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 21:49:57,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 21:49:57,158 INFO L93 Difference]: Finished difference Result 623673 states and 996667 transitions. [2024-11-11 21:49:57,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-11 21:49:57,159 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 26.833333333333332) internal successors, (161), 6 states have internal predecessors, (161), 0 states have call successors, (0), 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 176 [2024-11-11 21:49:57,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 21:49:59,410 INFO L225 Difference]: With dead ends: 623673 [2024-11-11 21:49:59,410 INFO L226 Difference]: Without dead ends: 532421 [2024-11-11 21:49:59,587 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2024-11-11 21:49:59,588 INFO L435 NwaCegarLoop]: 817 mSDtfsCounter, 1608 mSDsluCounter, 2486 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1608 SdHoareTripleChecker+Valid, 3303 SdHoareTripleChecker+Invalid, 125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-11 21:49:59,588 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1608 Valid, 3303 Invalid, 125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-11 21:50:00,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 532421 states.