./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/pals_opt-floodmax.3.1.ufo.UNBOUNDED.pals.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 61a67961 Calling Ultimate with: /root/.sdkman/candidates/java/current/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 /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/pals_opt-floodmax.3.1.ufo.UNBOUNDED.pals.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 a2c5c77b8d7714bea640ff99a5b0e1a19cf307340ccbaffec9b7e0efde04f6ec --- Real Ultimate output --- This is Ultimate 0.2.5-wip.fs.cvc5-61a6796-m [2024-10-14 03:34:39,174 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-14 03:34:39,243 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-14 03:34:39,249 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-14 03:34:39,250 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-14 03:34:39,269 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-14 03:34:39,270 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-14 03:34:39,270 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-14 03:34:39,271 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-14 03:34:39,271 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-14 03:34:39,271 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-14 03:34:39,272 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-14 03:34:39,272 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-14 03:34:39,273 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-14 03:34:39,273 INFO L153 SettingsManager]: * Use SBE=true [2024-10-14 03:34:39,274 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-14 03:34:39,274 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-14 03:34:39,274 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-14 03:34:39,275 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-14 03:34:39,275 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-14 03:34:39,275 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-14 03:34:39,276 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-14 03:34:39,276 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-14 03:34:39,277 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-14 03:34:39,277 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-14 03:34:39,277 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-14 03:34:39,278 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-14 03:34:39,278 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-14 03:34:39,278 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-14 03:34:39,279 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-14 03:34:39,279 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-14 03:34:39,279 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-14 03:34:39,280 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 03:34:39,280 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-14 03:34:39,280 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-14 03:34:39,281 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-14 03:34:39,281 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-14 03:34:39,281 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-14 03:34:39,282 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-14 03:34:39,282 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-14 03:34:39,282 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-14 03:34:39,283 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-14 03:34:39,283 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a2c5c77b8d7714bea640ff99a5b0e1a19cf307340ccbaffec9b7e0efde04f6ec [2024-10-14 03:34:39,564 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-14 03:34:39,586 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-14 03:34:39,588 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-14 03:34:39,589 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-14 03:34:39,590 INFO L274 PluginConnector]: CDTParser initialized [2024-10-14 03:34:39,591 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/pals_opt-floodmax.3.1.ufo.UNBOUNDED.pals.c [2024-10-14 03:34:41,016 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-14 03:34:41,239 INFO L384 CDTParser]: Found 1 translation units. [2024-10-14 03:34:41,240 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/pals_opt-floodmax.3.1.ufo.UNBOUNDED.pals.c [2024-10-14 03:34:41,260 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6f04587fd/53be4e6ad1e2490697ffef6e5dacd40f/FLAGab9a4854a [2024-10-14 03:34:41,274 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6f04587fd/53be4e6ad1e2490697ffef6e5dacd40f [2024-10-14 03:34:41,276 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-14 03:34:41,277 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-14 03:34:41,278 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-14 03:34:41,278 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-14 03:34:41,287 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-14 03:34:41,288 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 03:34:41" (1/1) ... [2024-10-14 03:34:41,290 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d6c33ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:34:41, skipping insertion in model container [2024-10-14 03:34:41,291 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 03:34:41" (1/1) ... [2024-10-14 03:34:41,327 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-14 03:34:41,548 WARN L248 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/pals_opt-floodmax.3.1.ufo.UNBOUNDED.pals.c[12951,12964] [2024-10-14 03:34:41,557 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 03:34:41,574 INFO L200 MainTranslator]: Completed pre-run [2024-10-14 03:34:41,642 WARN L248 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/pals_opt-floodmax.3.1.ufo.UNBOUNDED.pals.c[12951,12964] [2024-10-14 03:34:41,643 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 03:34:41,671 INFO L204 MainTranslator]: Completed translation [2024-10-14 03:34:41,672 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:34:41 WrapperNode [2024-10-14 03:34:41,672 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-14 03:34:41,673 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-14 03:34:41,673 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-14 03:34:41,673 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-14 03:34:41,680 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:34:41" (1/1) ... [2024-10-14 03:34:41,697 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:34:41" (1/1) ... [2024-10-14 03:34:41,751 INFO L138 Inliner]: procedures = 23, calls = 14, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 484 [2024-10-14 03:34:41,751 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-14 03:34:41,752 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-14 03:34:41,752 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-14 03:34:41,752 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-14 03:34:41,773 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:34:41" (1/1) ... [2024-10-14 03:34:41,774 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:34:41" (1/1) ... [2024-10-14 03:34:41,777 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:34:41" (1/1) ... [2024-10-14 03:34:41,809 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]. [2024-10-14 03:34:41,810 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:34:41" (1/1) ... [2024-10-14 03:34:41,810 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:34:41" (1/1) ... [2024-10-14 03:34:41,818 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:34:41" (1/1) ... [2024-10-14 03:34:41,827 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:34:41" (1/1) ... [2024-10-14 03:34:41,829 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:34:41" (1/1) ... [2024-10-14 03:34:41,832 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:34:41" (1/1) ... [2024-10-14 03:34:41,835 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-14 03:34:41,836 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-14 03:34:41,836 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-14 03:34:41,836 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-14 03:34:41,837 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:34:41" (1/1) ... [2024-10-14 03:34:41,842 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 03:34:41,859 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 03:34:41,875 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) [2024-10-14 03:34:41,878 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 [2024-10-14 03:34:41,919 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-14 03:34:41,919 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-14 03:34:41,920 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-14 03:34:41,921 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-14 03:34:42,025 INFO L238 CfgBuilder]: Building ICFG [2024-10-14 03:34:42,028 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-14 03:34:42,634 INFO L? ?]: Removed 42 outVars from TransFormulas that were not future-live. [2024-10-14 03:34:42,636 INFO L287 CfgBuilder]: Performing block encoding [2024-10-14 03:34:42,695 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-14 03:34:42,696 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-14 03:34:42,696 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 03:34:42 BoogieIcfgContainer [2024-10-14 03:34:42,696 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-14 03:34:42,700 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-14 03:34:42,700 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-14 03:34:42,703 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-14 03:34:42,703 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 03:34:41" (1/3) ... [2024-10-14 03:34:42,704 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36a1f3cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 03:34:42, skipping insertion in model container [2024-10-14 03:34:42,704 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:34:41" (2/3) ... [2024-10-14 03:34:42,704 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36a1f3cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 03:34:42, skipping insertion in model container [2024-10-14 03:34:42,704 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 03:34:42" (3/3) ... [2024-10-14 03:34:42,705 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_opt-floodmax.3.1.ufo.UNBOUNDED.pals.c [2024-10-14 03:34:42,717 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-14 03:34:42,718 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-14 03:34:42,794 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-14 03:34:42,801 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;@640d2a4e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-14 03:34:42,801 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-14 03:34:42,809 INFO L276 IsEmpty]: Start isEmpty. Operand has 126 states, 124 states have (on average 1.7903225806451613) internal successors, (222), 125 states have internal predecessors, (222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:34:42,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2024-10-14 03:34:42,817 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:34:42,818 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:34:42,820 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:34:42,824 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:34:42,824 INFO L85 PathProgramCache]: Analyzing trace with hash 112072983, now seen corresponding path program 1 times [2024-10-14 03:34:42,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:34:42,833 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [497724875] [2024-10-14 03:34:42,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:34:42,834 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:34:43,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:34:43,205 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:34:43,205 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:34:43,207 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [497724875] [2024-10-14 03:34:43,208 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [497724875] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:34:43,208 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:34:43,209 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 03:34:43,211 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [204783141] [2024-10-14 03:34:43,211 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:34:43,216 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-14 03:34:43,216 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:34:43,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-14 03:34:43,240 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-14 03:34:43,243 INFO L87 Difference]: Start difference. First operand has 126 states, 124 states have (on average 1.7903225806451613) internal successors, (222), 125 states have internal predecessors, (222), 0 states have call successors, (0), 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 2 states, 2 states have (on average 17.0) internal successors, (34), 2 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:34:43,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:34:43,293 INFO L93 Difference]: Finished difference Result 199 states and 349 transitions. [2024-10-14 03:34:43,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-14 03:34:43,296 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 17.0) internal successors, (34), 2 states have internal predecessors, (34), 0 states have call successors, (0), 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 34 [2024-10-14 03:34:43,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:34:43,307 INFO L225 Difference]: With dead ends: 199 [2024-10-14 03:34:43,307 INFO L226 Difference]: Without dead ends: 124 [2024-10-14 03:34:43,310 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-14 03:34:43,316 INFO L432 NwaCegarLoop]: 214 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 214 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 03:34:43,317 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 214 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 03:34:43,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2024-10-14 03:34:43,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 124. [2024-10-14 03:34:43,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124 states, 123 states have (on average 1.7642276422764227) internal successors, (217), 123 states have internal predecessors, (217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:34:43,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 217 transitions. [2024-10-14 03:34:43,356 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 217 transitions. Word has length 34 [2024-10-14 03:34:43,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:34:43,357 INFO L471 AbstractCegarLoop]: Abstraction has 124 states and 217 transitions. [2024-10-14 03:34:43,357 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 17.0) internal successors, (34), 2 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:34:43,357 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 217 transitions. [2024-10-14 03:34:43,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2024-10-14 03:34:43,359 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:34:43,359 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:34:43,360 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-14 03:34:43,360 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:34:43,360 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:34:43,361 INFO L85 PathProgramCache]: Analyzing trace with hash -1576870759, now seen corresponding path program 1 times [2024-10-14 03:34:43,361 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:34:43,361 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1451851659] [2024-10-14 03:34:43,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:34:43,362 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:34:43,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:34:43,620 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:34:43,622 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:34:43,622 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1451851659] [2024-10-14 03:34:43,623 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1451851659] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:34:43,623 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:34:43,623 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-14 03:34:43,623 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1699988902] [2024-10-14 03:34:43,623 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:34:43,624 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 03:34:43,626 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:34:43,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 03:34:43,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 03:34:43,628 INFO L87 Difference]: Start difference. First operand 124 states and 217 transitions. Second operand has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:34:43,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:34:43,716 INFO L93 Difference]: Finished difference Result 199 states and 343 transitions. [2024-10-14 03:34:43,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 03:34:43,716 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 0 states have call successors, (0), 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 34 [2024-10-14 03:34:43,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:34:43,717 INFO L225 Difference]: With dead ends: 199 [2024-10-14 03:34:43,717 INFO L226 Difference]: Without dead ends: 124 [2024-10-14 03:34:43,718 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 03:34:43,723 INFO L432 NwaCegarLoop]: 214 mSDtfsCounter, 0 mSDsluCounter, 401 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 615 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 03:34:43,724 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 615 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 03:34:43,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2024-10-14 03:34:43,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 124. [2024-10-14 03:34:43,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124 states, 123 states have (on average 1.5691056910569106) internal successors, (193), 123 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:34:43,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 193 transitions. [2024-10-14 03:34:43,734 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 193 transitions. Word has length 34 [2024-10-14 03:34:43,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:34:43,735 INFO L471 AbstractCegarLoop]: Abstraction has 124 states and 193 transitions. [2024-10-14 03:34:43,736 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:34:43,736 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 193 transitions. [2024-10-14 03:34:43,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-10-14 03:34:43,738 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:34:43,738 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:34:43,738 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-14 03:34:43,739 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:34:43,739 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:34:43,739 INFO L85 PathProgramCache]: Analyzing trace with hash -1784041878, now seen corresponding path program 1 times [2024-10-14 03:34:43,740 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:34:43,740 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [912293790] [2024-10-14 03:34:43,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:34:43,740 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:34:43,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:34:43,893 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:34:43,894 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:34:43,894 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [912293790] [2024-10-14 03:34:43,895 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [912293790] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:34:43,895 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:34:43,895 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 03:34:43,895 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1243207184] [2024-10-14 03:34:43,896 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:34:43,896 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 03:34:43,896 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:34:43,897 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 03:34:43,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 03:34:43,898 INFO L87 Difference]: Start difference. First operand 124 states and 193 transitions. Second operand has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:34:43,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:34:43,987 INFO L93 Difference]: Finished difference Result 258 states and 421 transitions. [2024-10-14 03:34:43,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 03:34:43,988 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 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 57 [2024-10-14 03:34:43,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:34:43,990 INFO L225 Difference]: With dead ends: 258 [2024-10-14 03:34:43,990 INFO L226 Difference]: Without dead ends: 186 [2024-10-14 03:34:43,990 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 03:34:43,993 INFO L432 NwaCegarLoop]: 183 mSDtfsCounter, 96 mSDsluCounter, 155 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 338 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 03:34:43,993 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [96 Valid, 338 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 03:34:43,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 186 states. [2024-10-14 03:34:44,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 186 to 183. [2024-10-14 03:34:44,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 183 states, 182 states have (on average 1.5934065934065933) internal successors, (290), 182 states have internal predecessors, (290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:34:44,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 290 transitions. [2024-10-14 03:34:44,015 INFO L78 Accepts]: Start accepts. Automaton has 183 states and 290 transitions. Word has length 57 [2024-10-14 03:34:44,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:34:44,015 INFO L471 AbstractCegarLoop]: Abstraction has 183 states and 290 transitions. [2024-10-14 03:34:44,015 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:34:44,016 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 290 transitions. [2024-10-14 03:34:44,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-10-14 03:34:44,017 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:34:44,018 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:34:44,018 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-14 03:34:44,018 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:34:44,019 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:34:44,019 INFO L85 PathProgramCache]: Analyzing trace with hash 803496124, now seen corresponding path program 1 times [2024-10-14 03:34:44,019 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:34:44,019 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [358349590] [2024-10-14 03:34:44,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:34:44,020 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:34:44,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:34:44,169 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:34:44,169 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:34:44,169 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [358349590] [2024-10-14 03:34:44,169 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [358349590] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:34:44,169 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:34:44,170 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 03:34:44,170 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [277754733] [2024-10-14 03:34:44,170 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:34:44,170 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 03:34:44,170 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:34:44,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 03:34:44,173 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 03:34:44,173 INFO L87 Difference]: Start difference. First operand 183 states and 290 transitions. Second operand has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:34:44,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:34:44,208 INFO L93 Difference]: Finished difference Result 429 states and 702 transitions. [2024-10-14 03:34:44,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 03:34:44,209 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 59 [2024-10-14 03:34:44,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:34:44,211 INFO L225 Difference]: With dead ends: 429 [2024-10-14 03:34:44,211 INFO L226 Difference]: Without dead ends: 298 [2024-10-14 03:34:44,212 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 03:34:44,213 INFO L432 NwaCegarLoop]: 187 mSDtfsCounter, 98 mSDsluCounter, 164 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 351 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 03:34:44,214 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [98 Valid, 351 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 03:34:44,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2024-10-14 03:34:44,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 294. [2024-10-14 03:34:44,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 294 states, 293 states have (on average 1.621160409556314) internal successors, (475), 293 states have internal predecessors, (475), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:34:44,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294 states to 294 states and 475 transitions. [2024-10-14 03:34:44,238 INFO L78 Accepts]: Start accepts. Automaton has 294 states and 475 transitions. Word has length 59 [2024-10-14 03:34:44,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:34:44,239 INFO L471 AbstractCegarLoop]: Abstraction has 294 states and 475 transitions. [2024-10-14 03:34:44,239 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:34:44,239 INFO L276 IsEmpty]: Start isEmpty. Operand 294 states and 475 transitions. [2024-10-14 03:34:44,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-10-14 03:34:44,241 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:34:44,241 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:34:44,241 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-14 03:34:44,241 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:34:44,242 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:34:44,242 INFO L85 PathProgramCache]: Analyzing trace with hash -233084402, now seen corresponding path program 1 times [2024-10-14 03:34:44,242 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:34:44,242 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1453369539] [2024-10-14 03:34:44,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:34:44,242 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:34:44,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:34:44,384 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:34:44,386 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:34:44,386 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1453369539] [2024-10-14 03:34:44,387 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1453369539] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:34:44,387 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:34:44,387 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 03:34:44,387 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [880569752] [2024-10-14 03:34:44,387 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:34:44,390 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 03:34:44,391 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:34:44,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 03:34:44,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 03:34:44,392 INFO L87 Difference]: Start difference. First operand 294 states and 475 transitions. Second operand has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:34:44,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:34:44,435 INFO L93 Difference]: Finished difference Result 746 states and 1229 transitions. [2024-10-14 03:34:44,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 03:34:44,436 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 0 states have call successors, (0), 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 61 [2024-10-14 03:34:44,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:34:44,440 INFO L225 Difference]: With dead ends: 746 [2024-10-14 03:34:44,440 INFO L226 Difference]: Without dead ends: 504 [2024-10-14 03:34:44,442 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 03:34:44,444 INFO L432 NwaCegarLoop]: 187 mSDtfsCounter, 92 mSDsluCounter, 165 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 352 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 03:34:44,446 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 352 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 03:34:44,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 504 states. [2024-10-14 03:34:44,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 504 to 498. [2024-10-14 03:34:44,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 498 states, 497 states have (on average 1.6317907444668007) internal successors, (811), 497 states have internal predecessors, (811), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:34:44,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 498 states to 498 states and 811 transitions. [2024-10-14 03:34:44,486 INFO L78 Accepts]: Start accepts. Automaton has 498 states and 811 transitions. Word has length 61 [2024-10-14 03:34:44,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:34:44,487 INFO L471 AbstractCegarLoop]: Abstraction has 498 states and 811 transitions. [2024-10-14 03:34:44,488 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:34:44,488 INFO L276 IsEmpty]: Start isEmpty. Operand 498 states and 811 transitions. [2024-10-14 03:34:44,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-10-14 03:34:44,492 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:34:44,492 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:34:44,492 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-14 03:34:44,493 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:34:44,493 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:34:44,494 INFO L85 PathProgramCache]: Analyzing trace with hash -1158493600, now seen corresponding path program 1 times [2024-10-14 03:34:44,494 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:34:44,494 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [650077188] [2024-10-14 03:34:44,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:34:44,494 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:34:44,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:34:44,700 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:34:44,701 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:34:44,701 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [650077188] [2024-10-14 03:34:44,701 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [650077188] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:34:44,701 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:34:44,701 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 03:34:44,701 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [161213174] [2024-10-14 03:34:44,701 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:34:44,702 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 03:34:44,702 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:34:44,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 03:34:44,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-14 03:34:44,703 INFO L87 Difference]: Start difference. First operand 498 states and 811 transitions. Second operand has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:34:44,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:34:44,901 INFO L93 Difference]: Finished difference Result 2146 states and 3589 transitions. [2024-10-14 03:34:44,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-14 03:34:44,902 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 0 states have call successors, (0), 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 63 [2024-10-14 03:34:44,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:34:44,910 INFO L225 Difference]: With dead ends: 2146 [2024-10-14 03:34:44,910 INFO L226 Difference]: Without dead ends: 1700 [2024-10-14 03:34:44,912 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-10-14 03:34:44,914 INFO L432 NwaCegarLoop]: 181 mSDtfsCounter, 807 mSDsluCounter, 921 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 807 SdHoareTripleChecker+Valid, 1102 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 03:34:44,915 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [807 Valid, 1102 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 03:34:44,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1700 states. [2024-10-14 03:34:44,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1700 to 889. [2024-10-14 03:34:44,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 889 states, 888 states have (on average 1.6452702702702702) internal successors, (1461), 888 states have internal predecessors, (1461), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:34:44,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 889 states to 889 states and 1461 transitions. [2024-10-14 03:34:44,963 INFO L78 Accepts]: Start accepts. Automaton has 889 states and 1461 transitions. Word has length 63 [2024-10-14 03:34:44,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:34:44,966 INFO L471 AbstractCegarLoop]: Abstraction has 889 states and 1461 transitions. [2024-10-14 03:34:44,966 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:34:44,966 INFO L276 IsEmpty]: Start isEmpty. Operand 889 states and 1461 transitions. [2024-10-14 03:34:44,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-10-14 03:34:44,968 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:34:44,968 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:34:44,968 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-14 03:34:44,968 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:34:44,968 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:34:44,968 INFO L85 PathProgramCache]: Analyzing trace with hash -1616284277, now seen corresponding path program 1 times [2024-10-14 03:34:44,969 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:34:44,969 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1663624977] [2024-10-14 03:34:44,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:34:44,969 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:34:44,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:34:45,107 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:34:45,109 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:34:45,109 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1663624977] [2024-10-14 03:34:45,109 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1663624977] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:34:45,109 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:34:45,109 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-14 03:34:45,110 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [403187573] [2024-10-14 03:34:45,110 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:34:45,110 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 03:34:45,110 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:34:45,111 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 03:34:45,111 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 03:34:45,111 INFO L87 Difference]: Start difference. First operand 889 states and 1461 transitions. Second operand has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:34:45,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:34:45,220 INFO L93 Difference]: Finished difference Result 2602 states and 4342 transitions. [2024-10-14 03:34:45,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 03:34:45,220 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 0 states have call successors, (0), 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 64 [2024-10-14 03:34:45,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:34:45,228 INFO L225 Difference]: With dead ends: 2602 [2024-10-14 03:34:45,228 INFO L226 Difference]: Without dead ends: 1765 [2024-10-14 03:34:45,230 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-14 03:34:45,232 INFO L432 NwaCegarLoop]: 184 mSDtfsCounter, 353 mSDsluCounter, 439 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 353 SdHoareTripleChecker+Valid, 623 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 03:34:45,234 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [353 Valid, 623 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 03:34:45,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1765 states. [2024-10-14 03:34:45,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1765 to 1318. [2024-10-14 03:34:45,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1318 states, 1317 states have (on average 1.6529992406985574) internal successors, (2177), 1317 states have internal predecessors, (2177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:34:45,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1318 states to 1318 states and 2177 transitions. [2024-10-14 03:34:45,275 INFO L78 Accepts]: Start accepts. Automaton has 1318 states and 2177 transitions. Word has length 64 [2024-10-14 03:34:45,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:34:45,276 INFO L471 AbstractCegarLoop]: Abstraction has 1318 states and 2177 transitions. [2024-10-14 03:34:45,276 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:34:45,276 INFO L276 IsEmpty]: Start isEmpty. Operand 1318 states and 2177 transitions. [2024-10-14 03:34:45,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-10-14 03:34:45,277 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:34:45,278 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:34:45,278 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-14 03:34:45,278 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:34:45,278 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:34:45,278 INFO L85 PathProgramCache]: Analyzing trace with hash 1377525673, now seen corresponding path program 1 times [2024-10-14 03:34:45,279 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:34:45,279 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [504226183] [2024-10-14 03:34:45,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:34:45,279 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:34:45,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:34:45,396 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:34:45,397 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:34:45,397 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [504226183] [2024-10-14 03:34:45,397 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [504226183] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:34:45,397 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:34:45,397 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-14 03:34:45,397 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1554230641] [2024-10-14 03:34:45,397 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:34:45,398 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 03:34:45,398 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:34:45,398 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 03:34:45,399 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 03:34:45,399 INFO L87 Difference]: Start difference. First operand 1318 states and 2177 transitions. Second operand has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:34:45,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:34:45,491 INFO L93 Difference]: Finished difference Result 3836 states and 6386 transitions. [2024-10-14 03:34:45,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 03:34:45,491 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 0 states have call successors, (0), 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 65 [2024-10-14 03:34:45,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:34:45,500 INFO L225 Difference]: With dead ends: 3836 [2024-10-14 03:34:45,501 INFO L226 Difference]: Without dead ends: 2570 [2024-10-14 03:34:45,503 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-14 03:34:45,503 INFO L432 NwaCegarLoop]: 180 mSDtfsCounter, 353 mSDsluCounter, 398 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 353 SdHoareTripleChecker+Valid, 578 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 03:34:45,504 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [353 Valid, 578 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 03:34:45,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2570 states. [2024-10-14 03:34:45,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2570 to 1932. [2024-10-14 03:34:45,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1932 states, 1931 states have (on average 1.6504401864319005) internal successors, (3187), 1931 states have internal predecessors, (3187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:34:45,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1932 states to 1932 states and 3187 transitions. [2024-10-14 03:34:45,561 INFO L78 Accepts]: Start accepts. Automaton has 1932 states and 3187 transitions. Word has length 65 [2024-10-14 03:34:45,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:34:45,562 INFO L471 AbstractCegarLoop]: Abstraction has 1932 states and 3187 transitions. [2024-10-14 03:34:45,562 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:34:45,562 INFO L276 IsEmpty]: Start isEmpty. Operand 1932 states and 3187 transitions. [2024-10-14 03:34:45,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-10-14 03:34:45,564 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:34:45,564 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:34:45,564 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-14 03:34:45,564 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:34:45,565 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:34:45,565 INFO L85 PathProgramCache]: Analyzing trace with hash -298194636, now seen corresponding path program 1 times [2024-10-14 03:34:45,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:34:45,565 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2140672894] [2024-10-14 03:34:45,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:34:45,565 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:34:45,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:34:45,661 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:34:45,661 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:34:45,662 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2140672894] [2024-10-14 03:34:45,662 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2140672894] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:34:45,662 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:34:45,662 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-14 03:34:45,662 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1622396059] [2024-10-14 03:34:45,662 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:34:45,663 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 03:34:45,663 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:34:45,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 03:34:45,663 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 03:34:45,663 INFO L87 Difference]: Start difference. First operand 1932 states and 3187 transitions. Second operand has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:34:45,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:34:45,789 INFO L93 Difference]: Finished difference Result 5592 states and 9282 transitions. [2024-10-14 03:34:45,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 03:34:45,792 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 0 states have call successors, (0), 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 66 [2024-10-14 03:34:45,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:34:45,805 INFO L225 Difference]: With dead ends: 5592 [2024-10-14 03:34:45,805 INFO L226 Difference]: Without dead ends: 3712 [2024-10-14 03:34:45,808 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-14 03:34:45,809 INFO L432 NwaCegarLoop]: 186 mSDtfsCounter, 351 mSDsluCounter, 443 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 351 SdHoareTripleChecker+Valid, 629 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 03:34:45,809 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [351 Valid, 629 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 03:34:45,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3712 states. [2024-10-14 03:34:45,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3712 to 2806. [2024-10-14 03:34:45,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2806 states, 2805 states have (on average 1.6467023172905526) internal successors, (4619), 2805 states have internal predecessors, (4619), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:34:45,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2806 states to 2806 states and 4619 transitions. [2024-10-14 03:34:45,901 INFO L78 Accepts]: Start accepts. Automaton has 2806 states and 4619 transitions. Word has length 66 [2024-10-14 03:34:45,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:34:45,902 INFO L471 AbstractCegarLoop]: Abstraction has 2806 states and 4619 transitions. [2024-10-14 03:34:45,902 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:34:45,903 INFO L276 IsEmpty]: Start isEmpty. Operand 2806 states and 4619 transitions. [2024-10-14 03:34:45,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-10-14 03:34:45,904 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:34:45,904 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:34:45,904 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-14 03:34:45,904 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:34:45,905 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:34:45,905 INFO L85 PathProgramCache]: Analyzing trace with hash 1449996775, now seen corresponding path program 1 times [2024-10-14 03:34:45,905 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:34:45,905 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1747105906] [2024-10-14 03:34:45,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:34:45,905 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:34:45,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:34:45,963 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:34:45,963 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:34:45,963 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1747105906] [2024-10-14 03:34:45,964 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1747105906] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:34:45,964 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:34:45,964 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 03:34:45,964 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [406672319] [2024-10-14 03:34:45,964 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:34:45,964 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 03:34:45,965 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:34:45,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 03:34:45,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 03:34:45,965 INFO L87 Difference]: Start difference. First operand 2806 states and 4619 transitions. Second operand has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:34:46,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:34:46,045 INFO L93 Difference]: Finished difference Result 6432 states and 10586 transitions. [2024-10-14 03:34:46,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 03:34:46,046 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 0 states have call successors, (0), 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 67 [2024-10-14 03:34:46,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:34:46,061 INFO L225 Difference]: With dead ends: 6432 [2024-10-14 03:34:46,062 INFO L226 Difference]: Without dead ends: 4426 [2024-10-14 03:34:46,066 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 03:34:46,067 INFO L432 NwaCegarLoop]: 221 mSDtfsCounter, 91 mSDsluCounter, 170 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 391 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 03:34:46,067 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 391 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 03:34:46,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4426 states. [2024-10-14 03:34:46,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4426 to 4424. [2024-10-14 03:34:46,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4424 states, 4423 states have (on average 1.6305674881302283) internal successors, (7212), 4423 states have internal predecessors, (7212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:34:46,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4424 states to 4424 states and 7212 transitions. [2024-10-14 03:34:46,218 INFO L78 Accepts]: Start accepts. Automaton has 4424 states and 7212 transitions. Word has length 67 [2024-10-14 03:34:46,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:34:46,219 INFO L471 AbstractCegarLoop]: Abstraction has 4424 states and 7212 transitions. [2024-10-14 03:34:46,219 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:34:46,219 INFO L276 IsEmpty]: Start isEmpty. Operand 4424 states and 7212 transitions. [2024-10-14 03:34:46,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-10-14 03:34:46,221 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:34:46,222 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:34:46,222 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-14 03:34:46,222 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:34:46,222 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:34:46,222 INFO L85 PathProgramCache]: Analyzing trace with hash -1388120921, now seen corresponding path program 1 times [2024-10-14 03:34:46,222 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:34:46,222 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1727867718] [2024-10-14 03:34:46,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:34:46,223 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:34:46,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:34:46,288 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:34:46,288 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:34:46,288 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1727867718] [2024-10-14 03:34:46,288 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1727867718] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:34:46,288 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:34:46,289 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 03:34:46,289 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [704360072] [2024-10-14 03:34:46,289 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:34:46,289 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 03:34:46,289 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:34:46,290 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 03:34:46,290 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 03:34:46,290 INFO L87 Difference]: Start difference. First operand 4424 states and 7212 transitions. Second operand has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:34:46,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:34:46,411 INFO L93 Difference]: Finished difference Result 9732 states and 15910 transitions. [2024-10-14 03:34:46,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 03:34:46,412 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 0 states have call successors, (0), 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 67 [2024-10-14 03:34:46,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:34:46,437 INFO L225 Difference]: With dead ends: 9732 [2024-10-14 03:34:46,438 INFO L226 Difference]: Without dead ends: 6592 [2024-10-14 03:34:46,444 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 03:34:46,445 INFO L432 NwaCegarLoop]: 250 mSDtfsCounter, 97 mSDsluCounter, 169 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 419 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 03:34:46,446 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [97 Valid, 419 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 03:34:46,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6592 states. [2024-10-14 03:34:46,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6592 to 6590. [2024-10-14 03:34:46,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6590 states, 6589 states have (on average 1.6208832903323722) internal successors, (10680), 6589 states have internal predecessors, (10680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:34:46,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6590 states to 6590 states and 10680 transitions. [2024-10-14 03:34:46,719 INFO L78 Accepts]: Start accepts. Automaton has 6590 states and 10680 transitions. Word has length 67 [2024-10-14 03:34:46,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:34:46,720 INFO L471 AbstractCegarLoop]: Abstraction has 6590 states and 10680 transitions. [2024-10-14 03:34:46,720 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:34:46,720 INFO L276 IsEmpty]: Start isEmpty. Operand 6590 states and 10680 transitions. [2024-10-14 03:34:46,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-10-14 03:34:46,721 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:34:46,721 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:34:46,721 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-14 03:34:46,721 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:34:46,722 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:34:46,722 INFO L85 PathProgramCache]: Analyzing trace with hash -169105561, now seen corresponding path program 1 times [2024-10-14 03:34:46,722 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:34:46,722 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [317153160] [2024-10-14 03:34:46,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:34:46,723 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:34:46,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:34:46,779 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:34:46,779 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:34:46,779 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [317153160] [2024-10-14 03:34:46,779 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [317153160] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:34:46,780 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:34:46,780 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 03:34:46,780 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [960955213] [2024-10-14 03:34:46,780 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:34:46,780 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 03:34:46,780 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:34:46,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 03:34:46,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 03:34:46,781 INFO L87 Difference]: Start difference. First operand 6590 states and 10680 transitions. Second operand has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:34:46,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:34:46,933 INFO L93 Difference]: Finished difference Result 14789 states and 24186 transitions. [2024-10-14 03:34:46,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 03:34:46,934 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 0 states have call successors, (0), 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 67 [2024-10-14 03:34:46,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:34:46,972 INFO L225 Difference]: With dead ends: 14789 [2024-10-14 03:34:46,972 INFO L226 Difference]: Without dead ends: 9940 [2024-10-14 03:34:46,982 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 03:34:46,983 INFO L432 NwaCegarLoop]: 271 mSDtfsCounter, 103 mSDsluCounter, 168 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 439 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 03:34:46,983 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [103 Valid, 439 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 03:34:46,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9940 states. [2024-10-14 03:34:47,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9940 to 9938. [2024-10-14 03:34:47,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9938 states, 9937 states have (on average 1.6148737043373251) internal successors, (16047), 9937 states have internal predecessors, (16047), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:34:47,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9938 states to 9938 states and 16047 transitions. [2024-10-14 03:34:47,269 INFO L78 Accepts]: Start accepts. Automaton has 9938 states and 16047 transitions. Word has length 67 [2024-10-14 03:34:47,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:34:47,270 INFO L471 AbstractCegarLoop]: Abstraction has 9938 states and 16047 transitions. [2024-10-14 03:34:47,270 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:34:47,271 INFO L276 IsEmpty]: Start isEmpty. Operand 9938 states and 16047 transitions. [2024-10-14 03:34:47,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-10-14 03:34:47,271 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:34:47,271 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:34:47,272 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-14 03:34:47,272 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:34:47,272 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:34:47,272 INFO L85 PathProgramCache]: Analyzing trace with hash -278553348, now seen corresponding path program 1 times [2024-10-14 03:34:47,272 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:34:47,273 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1119469477] [2024-10-14 03:34:47,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:34:47,273 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:34:47,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:34:47,521 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:34:47,521 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:34:47,521 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1119469477] [2024-10-14 03:34:47,522 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1119469477] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:34:47,522 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:34:47,522 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 03:34:47,522 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1741605510] [2024-10-14 03:34:47,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:34:47,523 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 03:34:47,523 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:34:47,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 03:34:47,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-14 03:34:47,524 INFO L87 Difference]: Start difference. First operand 9938 states and 16047 transitions. Second operand has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:34:47,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:34:47,747 INFO L93 Difference]: Finished difference Result 19808 states and 31999 transitions. [2024-10-14 03:34:47,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 03:34:47,748 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 0 states have call successors, (0), 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 68 [2024-10-14 03:34:47,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:34:47,769 INFO L225 Difference]: With dead ends: 19808 [2024-10-14 03:34:47,770 INFO L226 Difference]: Without dead ends: 9940 [2024-10-14 03:34:47,785 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2024-10-14 03:34:47,786 INFO L432 NwaCegarLoop]: 187 mSDtfsCounter, 280 mSDsluCounter, 322 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 280 SdHoareTripleChecker+Valid, 509 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 03:34:47,786 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [280 Valid, 509 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 03:34:47,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9940 states. [2024-10-14 03:34:48,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9940 to 9938. [2024-10-14 03:34:48,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9938 states, 9937 states have (on average 1.6022944550669216) internal successors, (15922), 9937 states have internal predecessors, (15922), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:34:48,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9938 states to 9938 states and 15922 transitions. [2024-10-14 03:34:48,073 INFO L78 Accepts]: Start accepts. Automaton has 9938 states and 15922 transitions. Word has length 68 [2024-10-14 03:34:48,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:34:48,073 INFO L471 AbstractCegarLoop]: Abstraction has 9938 states and 15922 transitions. [2024-10-14 03:34:48,073 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:34:48,073 INFO L276 IsEmpty]: Start isEmpty. Operand 9938 states and 15922 transitions. [2024-10-14 03:34:48,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-10-14 03:34:48,074 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:34:48,074 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:34:48,074 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-14 03:34:48,074 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:34:48,075 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:34:48,075 INFO L85 PathProgramCache]: Analyzing trace with hash -1971650970, now seen corresponding path program 1 times [2024-10-14 03:34:48,075 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:34:48,075 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [881229219] [2024-10-14 03:34:48,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:34:48,076 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:34:48,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:34:48,334 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:34:48,335 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:34:48,335 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [881229219] [2024-10-14 03:34:48,335 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [881229219] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:34:48,335 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:34:48,335 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 03:34:48,336 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [602363497] [2024-10-14 03:34:48,336 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:34:48,336 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 03:34:48,336 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:34:48,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 03:34:48,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-14 03:34:48,337 INFO L87 Difference]: Start difference. First operand 9938 states and 15922 transitions. Second operand has 5 states, 5 states have (on average 14.2) internal successors, (71), 5 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:34:48,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:34:48,718 INFO L93 Difference]: Finished difference Result 28488 states and 45785 transitions. [2024-10-14 03:34:48,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 03:34:48,719 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 5 states have internal predecessors, (71), 0 states have call successors, (0), 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 71 [2024-10-14 03:34:48,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:34:48,763 INFO L225 Difference]: With dead ends: 28488 [2024-10-14 03:34:48,764 INFO L226 Difference]: Without dead ends: 18620 [2024-10-14 03:34:48,783 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2024-10-14 03:34:48,784 INFO L432 NwaCegarLoop]: 181 mSDtfsCounter, 183 mSDsluCounter, 332 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 183 SdHoareTripleChecker+Valid, 513 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 03:34:48,785 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [183 Valid, 513 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 03:34:48,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18620 states. [2024-10-14 03:34:49,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18620 to 18618. [2024-10-14 03:34:49,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18618 states, 18617 states have (on average 1.5882795294623193) internal successors, (29569), 18617 states have internal predecessors, (29569), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:34:49,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18618 states to 18618 states and 29569 transitions. [2024-10-14 03:34:49,323 INFO L78 Accepts]: Start accepts. Automaton has 18618 states and 29569 transitions. Word has length 71 [2024-10-14 03:34:49,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:34:49,323 INFO L471 AbstractCegarLoop]: Abstraction has 18618 states and 29569 transitions. [2024-10-14 03:34:49,324 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 5 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:34:49,324 INFO L276 IsEmpty]: Start isEmpty. Operand 18618 states and 29569 transitions. [2024-10-14 03:34:49,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-10-14 03:34:49,324 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:34:49,325 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:34:49,325 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-14 03:34:49,325 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:34:49,325 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:34:49,326 INFO L85 PathProgramCache]: Analyzing trace with hash -1006157133, now seen corresponding path program 1 times [2024-10-14 03:34:49,326 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:34:49,326 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1394531977] [2024-10-14 03:34:49,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:34:49,326 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:34:49,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:34:49,595 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:34:49,595 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:34:49,595 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1394531977] [2024-10-14 03:34:49,595 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1394531977] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:34:49,595 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:34:49,595 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-14 03:34:49,596 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [140654483] [2024-10-14 03:34:49,596 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:34:49,596 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 03:34:49,596 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:34:49,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 03:34:49,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 03:34:49,597 INFO L87 Difference]: Start difference. First operand 18618 states and 29569 transitions. Second operand has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:34:49,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:34:49,805 INFO L93 Difference]: Finished difference Result 19344 states and 30656 transitions. [2024-10-14 03:34:49,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 03:34:49,806 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 0 states have call successors, (0), 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 72 [2024-10-14 03:34:49,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:34:49,851 INFO L225 Difference]: With dead ends: 19344 [2024-10-14 03:34:49,852 INFO L226 Difference]: Without dead ends: 19342 [2024-10-14 03:34:49,864 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 03:34:49,865 INFO L432 NwaCegarLoop]: 189 mSDtfsCounter, 0 mSDsluCounter, 365 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 554 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 03:34:49,865 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 554 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 03:34:49,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19342 states. [2024-10-14 03:34:50,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19342 to 19342. [2024-10-14 03:34:50,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19342 states, 19341 states have (on average 1.5657928752391292) internal successors, (30284), 19341 states have internal predecessors, (30284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:34:50,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19342 states to 19342 states and 30284 transitions. [2024-10-14 03:34:50,374 INFO L78 Accepts]: Start accepts. Automaton has 19342 states and 30284 transitions. Word has length 72 [2024-10-14 03:34:50,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:34:50,374 INFO L471 AbstractCegarLoop]: Abstraction has 19342 states and 30284 transitions. [2024-10-14 03:34:50,374 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:34:50,375 INFO L276 IsEmpty]: Start isEmpty. Operand 19342 states and 30284 transitions. [2024-10-14 03:34:50,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-10-14 03:34:50,376 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:34:50,377 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-14 03:34:50,377 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-14 03:34:50,377 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:34:50,377 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:34:50,377 INFO L85 PathProgramCache]: Analyzing trace with hash -1175642537, now seen corresponding path program 1 times [2024-10-14 03:34:50,378 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:34:50,378 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [303696683] [2024-10-14 03:34:50,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:34:50,378 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:34:50,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:34:50,525 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-10-14 03:34:50,526 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:34:50,526 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [303696683] [2024-10-14 03:34:50,528 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [303696683] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:34:50,528 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:34:50,528 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 03:34:50,528 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1836492973] [2024-10-14 03:34:50,529 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:34:50,529 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 03:34:50,529 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:34:50,530 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 03:34:50,530 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-14 03:34:50,530 INFO L87 Difference]: Start difference. First operand 19342 states and 30284 transitions. Second operand has 5 states, 5 states have (on average 17.2) internal successors, (86), 5 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:34:51,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:34:51,206 INFO L93 Difference]: Finished difference Result 47460 states and 74554 transitions. [2024-10-14 03:34:51,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 03:34:51,207 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 5 states have internal predecessors, (86), 0 states have call successors, (0), 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 99 [2024-10-14 03:34:51,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:34:51,303 INFO L225 Difference]: With dead ends: 47460 [2024-10-14 03:34:51,304 INFO L226 Difference]: Without dead ends: 38248 [2024-10-14 03:34:51,329 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-10-14 03:34:51,329 INFO L432 NwaCegarLoop]: 302 mSDtfsCounter, 449 mSDsluCounter, 493 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 449 SdHoareTripleChecker+Valid, 795 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 03:34:51,330 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [449 Valid, 795 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 03:34:51,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38248 states. [2024-10-14 03:34:52,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38248 to 29784. [2024-10-14 03:34:52,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29784 states, 29783 states have (on average 1.5639794513648726) internal successors, (46580), 29783 states have internal predecessors, (46580), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:34:52,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29784 states to 29784 states and 46580 transitions. [2024-10-14 03:34:52,391 INFO L78 Accepts]: Start accepts. Automaton has 29784 states and 46580 transitions. Word has length 99 [2024-10-14 03:34:52,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:34:52,392 INFO L471 AbstractCegarLoop]: Abstraction has 29784 states and 46580 transitions. [2024-10-14 03:34:52,392 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 5 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:34:52,392 INFO L276 IsEmpty]: Start isEmpty. Operand 29784 states and 46580 transitions. [2024-10-14 03:34:52,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-10-14 03:34:52,395 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:34:52,395 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-14 03:34:52,395 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-10-14 03:34:52,396 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:34:52,396 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:34:52,396 INFO L85 PathProgramCache]: Analyzing trace with hash 281207063, now seen corresponding path program 1 times [2024-10-14 03:34:52,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:34:52,396 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1173865460] [2024-10-14 03:34:52,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:34:52,397 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:34:52,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:34:52,565 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-10-14 03:34:52,566 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:34:52,566 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1173865460] [2024-10-14 03:34:52,566 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1173865460] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:34:52,566 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:34:52,566 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 03:34:52,567 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [260482360] [2024-10-14 03:34:52,567 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:34:52,567 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 03:34:52,567 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:34:52,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 03:34:52,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-14 03:34:52,569 INFO L87 Difference]: Start difference. First operand 29784 states and 46580 transitions. Second operand has 5 states, 5 states have (on average 18.4) internal successors, (92), 5 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:34:53,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:34:53,387 INFO L93 Difference]: Finished difference Result 51176 states and 80398 transitions. [2024-10-14 03:34:53,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 03:34:53,388 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.4) internal successors, (92), 5 states have internal predecessors, (92), 0 states have call successors, (0), 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 99 [2024-10-14 03:34:53,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:34:53,523 INFO L225 Difference]: With dead ends: 51176 [2024-10-14 03:34:53,523 INFO L226 Difference]: Without dead ends: 41964 [2024-10-14 03:34:53,554 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-10-14 03:34:53,555 INFO L432 NwaCegarLoop]: 304 mSDtfsCounter, 442 mSDsluCounter, 540 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 442 SdHoareTripleChecker+Valid, 844 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 03:34:53,555 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [442 Valid, 844 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 03:34:53,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41964 states. [2024-10-14 03:34:54,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41964 to 40422. [2024-10-14 03:34:54,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40422 states, 40421 states have (on average 1.564483807921625) internal successors, (63238), 40421 states have internal predecessors, (63238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:34:54,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40422 states to 40422 states and 63238 transitions. [2024-10-14 03:34:54,595 INFO L78 Accepts]: Start accepts. Automaton has 40422 states and 63238 transitions. Word has length 99 [2024-10-14 03:34:54,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:34:54,595 INFO L471 AbstractCegarLoop]: Abstraction has 40422 states and 63238 transitions. [2024-10-14 03:34:54,596 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.4) internal successors, (92), 5 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:34:54,596 INFO L276 IsEmpty]: Start isEmpty. Operand 40422 states and 63238 transitions. [2024-10-14 03:34:54,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-10-14 03:34:54,597 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:34:54,598 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-14 03:34:54,598 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-10-14 03:34:54,598 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:34:54,598 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:34:54,599 INFO L85 PathProgramCache]: Analyzing trace with hash 1500222423, now seen corresponding path program 1 times [2024-10-14 03:34:54,599 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:34:54,599 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [274092149] [2024-10-14 03:34:54,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:34:54,599 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:34:54,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:34:55,035 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-14 03:34:55,036 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:34:55,036 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [274092149] [2024-10-14 03:34:55,036 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [274092149] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:34:55,036 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:34:55,037 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 03:34:55,037 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1115344115] [2024-10-14 03:34:55,037 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:34:55,037 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 03:34:55,038 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:34:55,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 03:34:55,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-14 03:34:55,039 INFO L87 Difference]: Start difference. First operand 40422 states and 63238 transitions. Second operand has 5 states, 5 states have (on average 19.6) internal successors, (98), 5 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:34:55,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:34:55,805 INFO L93 Difference]: Finished difference Result 57486 states and 90482 transitions. [2024-10-14 03:34:55,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 03:34:55,806 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 5 states have internal predecessors, (98), 0 states have call successors, (0), 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 99 [2024-10-14 03:34:55,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:34:55,911 INFO L225 Difference]: With dead ends: 57486 [2024-10-14 03:34:55,911 INFO L226 Difference]: Without dead ends: 48044 [2024-10-14 03:34:55,939 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-10-14 03:34:55,939 INFO L432 NwaCegarLoop]: 287 mSDtfsCounter, 450 mSDsluCounter, 527 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 450 SdHoareTripleChecker+Valid, 814 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 03:34:55,940 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [450 Valid, 814 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 03:34:55,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48044 states. [2024-10-14 03:34:56,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48044 to 46502. [2024-10-14 03:34:56,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46502 states, 46501 states have (on average 1.5673211328788628) internal successors, (72882), 46501 states have internal predecessors, (72882), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:34:57,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46502 states to 46502 states and 72882 transitions. [2024-10-14 03:34:57,021 INFO L78 Accepts]: Start accepts. Automaton has 46502 states and 72882 transitions. Word has length 99 [2024-10-14 03:34:57,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:34:57,022 INFO L471 AbstractCegarLoop]: Abstraction has 46502 states and 72882 transitions. [2024-10-14 03:34:57,022 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 5 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:34:57,022 INFO L276 IsEmpty]: Start isEmpty. Operand 46502 states and 72882 transitions. [2024-10-14 03:34:57,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-10-14 03:34:57,024 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:34:57,024 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-14 03:34:57,024 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-10-14 03:34:57,024 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:34:57,025 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:34:57,025 INFO L85 PathProgramCache]: Analyzing trace with hash -800466188, now seen corresponding path program 1 times [2024-10-14 03:34:57,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:34:57,025 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [699919240] [2024-10-14 03:34:57,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:34:57,026 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:34:57,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:34:57,286 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-14 03:34:57,287 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:34:57,287 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [699919240] [2024-10-14 03:34:57,287 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [699919240] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:34:57,287 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:34:57,287 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-14 03:34:57,287 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1280405213] [2024-10-14 03:34:57,287 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:34:57,288 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 03:34:57,288 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:34:57,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 03:34:57,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-14 03:34:57,289 INFO L87 Difference]: Start difference. First operand 46502 states and 72882 transitions. Second operand has 4 states, 4 states have (on average 24.75) internal successors, (99), 4 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:34:58,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:34:58,135 INFO L93 Difference]: Finished difference Result 76005 states and 119801 transitions. [2024-10-14 03:34:58,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 03:34:58,136 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 24.75) internal successors, (99), 4 states have internal predecessors, (99), 0 states have call successors, (0), 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 100 [2024-10-14 03:34:58,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:34:58,253 INFO L225 Difference]: With dead ends: 76005 [2024-10-14 03:34:58,254 INFO L226 Difference]: Without dead ends: 60483 [2024-10-14 03:34:58,285 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-14 03:34:58,286 INFO L432 NwaCegarLoop]: 295 mSDtfsCounter, 191 mSDsluCounter, 290 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 191 SdHoareTripleChecker+Valid, 585 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 03:34:58,286 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [191 Valid, 585 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 03:34:58,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60483 states. [2024-10-14 03:34:59,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60483 to 58943. [2024-10-14 03:34:59,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58943 states, 58942 states have (on average 1.5676088358046893) internal successors, (92398), 58942 states have internal predecessors, (92398), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:34:59,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58943 states to 58943 states and 92398 transitions. [2024-10-14 03:34:59,320 INFO L78 Accepts]: Start accepts. Automaton has 58943 states and 92398 transitions. Word has length 100 [2024-10-14 03:34:59,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:34:59,321 INFO L471 AbstractCegarLoop]: Abstraction has 58943 states and 92398 transitions. [2024-10-14 03:34:59,321 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.75) internal successors, (99), 4 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:34:59,321 INFO L276 IsEmpty]: Start isEmpty. Operand 58943 states and 92398 transitions. [2024-10-14 03:34:59,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-10-14 03:34:59,323 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:34:59,323 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-14 03:34:59,323 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-10-14 03:34:59,324 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:34:59,324 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:34:59,324 INFO L85 PathProgramCache]: Analyzing trace with hash -1618114638, now seen corresponding path program 1 times [2024-10-14 03:34:59,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:34:59,325 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1031362917] [2024-10-14 03:34:59,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:34:59,325 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:34:59,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:34:59,617 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-14 03:34:59,618 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:34:59,618 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1031362917] [2024-10-14 03:34:59,618 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1031362917] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:34:59,618 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:34:59,618 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 03:34:59,618 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1974599070] [2024-10-14 03:34:59,618 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:34:59,619 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 03:34:59,619 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:34:59,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 03:34:59,620 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 03:34:59,620 INFO L87 Difference]: Start difference. First operand 58943 states and 92398 transitions. Second operand has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:35:00,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:35:00,827 INFO L93 Difference]: Finished difference Result 127659 states and 200867 transitions. [2024-10-14 03:35:00,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 03:35:00,828 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 0 states have call successors, (0), 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 100 [2024-10-14 03:35:00,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:35:01,060 INFO L225 Difference]: With dead ends: 127659 [2024-10-14 03:35:01,061 INFO L226 Difference]: Without dead ends: 99801 [2024-10-14 03:35:01,116 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 03:35:01,117 INFO L432 NwaCegarLoop]: 186 mSDtfsCounter, 81 mSDsluCounter, 162 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 348 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 03:35:01,118 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 348 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 03:35:01,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99801 states. [2024-10-14 03:35:02,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99801 to 99523. [2024-10-14 03:35:02,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99523 states, 99522 states have (on average 1.5675328068165832) internal successors, (156004), 99522 states have internal predecessors, (156004), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:35:03,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99523 states to 99523 states and 156004 transitions. [2024-10-14 03:35:03,306 INFO L78 Accepts]: Start accepts. Automaton has 99523 states and 156004 transitions. Word has length 100 [2024-10-14 03:35:03,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:35:03,307 INFO L471 AbstractCegarLoop]: Abstraction has 99523 states and 156004 transitions. [2024-10-14 03:35:03,307 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:35:03,307 INFO L276 IsEmpty]: Start isEmpty. Operand 99523 states and 156004 transitions. [2024-10-14 03:35:03,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-10-14 03:35:03,309 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:35:03,309 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:35:03,309 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-10-14 03:35:03,309 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:35:03,310 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:35:03,310 INFO L85 PathProgramCache]: Analyzing trace with hash 670529826, now seen corresponding path program 1 times [2024-10-14 03:35:03,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:35:03,310 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [960085765] [2024-10-14 03:35:03,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:35:03,311 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:35:03,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:35:03,378 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-10-14 03:35:03,379 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:35:03,379 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [960085765] [2024-10-14 03:35:03,379 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [960085765] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:35:03,379 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:35:03,379 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 03:35:03,379 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [447407828] [2024-10-14 03:35:03,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:35:03,380 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 03:35:03,380 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:35:03,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 03:35:03,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 03:35:03,381 INFO L87 Difference]: Start difference. First operand 99523 states and 156004 transitions. Second operand has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:35:05,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:35:05,657 INFO L93 Difference]: Finished difference Result 213671 states and 335831 transitions. [2024-10-14 03:35:05,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 03:35:05,658 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 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 101 [2024-10-14 03:35:05,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:35:05,929 INFO L225 Difference]: With dead ends: 213671 [2024-10-14 03:35:05,929 INFO L226 Difference]: Without dead ends: 157801 [2024-10-14 03:35:05,991 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 03:35:05,992 INFO L432 NwaCegarLoop]: 183 mSDtfsCounter, 81 mSDsluCounter, 163 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 346 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 03:35:05,992 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 346 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 03:35:06,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157801 states. [2024-10-14 03:35:08,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157801 to 157398. [2024-10-14 03:35:08,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 157398 states, 157397 states have (on average 1.5670883180746773) internal successors, (246655), 157397 states have internal predecessors, (246655), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:35:09,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157398 states to 157398 states and 246655 transitions. [2024-10-14 03:35:09,391 INFO L78 Accepts]: Start accepts. Automaton has 157398 states and 246655 transitions. Word has length 101 [2024-10-14 03:35:09,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:35:09,392 INFO L471 AbstractCegarLoop]: Abstraction has 157398 states and 246655 transitions. [2024-10-14 03:35:09,392 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:35:09,392 INFO L276 IsEmpty]: Start isEmpty. Operand 157398 states and 246655 transitions. [2024-10-14 03:35:09,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-10-14 03:35:09,394 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:35:09,394 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:35:09,394 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-10-14 03:35:09,395 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:35:09,395 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:35:09,395 INFO L85 PathProgramCache]: Analyzing trace with hash 1950393504, now seen corresponding path program 1 times [2024-10-14 03:35:09,395 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:35:09,395 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1660384684] [2024-10-14 03:35:09,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:35:09,396 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:35:09,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:35:09,525 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-10-14 03:35:09,525 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:35:09,526 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1660384684] [2024-10-14 03:35:09,526 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1660384684] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:35:09,526 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:35:09,526 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-14 03:35:09,526 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [311951975] [2024-10-14 03:35:09,527 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:35:09,527 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 03:35:09,527 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:35:09,528 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 03:35:09,528 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-14 03:35:09,528 INFO L87 Difference]: Start difference. First operand 157398 states and 246655 transitions. Second operand has 4 states, 4 states have (on average 23.5) internal successors, (94), 4 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:35:12,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:35:12,023 INFO L93 Difference]: Finished difference Result 263009 states and 413428 transitions. [2024-10-14 03:35:12,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 03:35:12,024 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.5) internal successors, (94), 4 states have internal predecessors, (94), 0 states have call successors, (0), 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 101 [2024-10-14 03:35:12,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:35:12,720 INFO L225 Difference]: With dead ends: 263009 [2024-10-14 03:35:12,721 INFO L226 Difference]: Without dead ends: 205421 [2024-10-14 03:35:12,780 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-14 03:35:12,782 INFO L432 NwaCegarLoop]: 291 mSDtfsCounter, 195 mSDsluCounter, 290 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 195 SdHoareTripleChecker+Valid, 581 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 03:35:12,782 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [195 Valid, 581 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 03:35:12,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205421 states. [2024-10-14 03:35:16,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205421 to 193098. [2024-10-14 03:35:16,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193098 states, 193097 states have (on average 1.5641465170354796) internal successors, (302032), 193097 states have internal predecessors, (302032), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:35:16,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193098 states to 193098 states and 302032 transitions. [2024-10-14 03:35:16,980 INFO L78 Accepts]: Start accepts. Automaton has 193098 states and 302032 transitions. Word has length 101 [2024-10-14 03:35:16,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:35:16,980 INFO L471 AbstractCegarLoop]: Abstraction has 193098 states and 302032 transitions. [2024-10-14 03:35:16,980 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.5) internal successors, (94), 4 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:35:16,980 INFO L276 IsEmpty]: Start isEmpty. Operand 193098 states and 302032 transitions. [2024-10-14 03:35:16,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-10-14 03:35:16,982 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:35:16,982 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-14 03:35:16,983 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-10-14 03:35:16,983 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:35:16,983 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:35:16,983 INFO L85 PathProgramCache]: Analyzing trace with hash 1386232415, now seen corresponding path program 1 times [2024-10-14 03:35:16,983 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:35:16,983 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [285748868] [2024-10-14 03:35:16,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:35:16,984 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:35:17,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:35:17,051 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:35:17,051 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:35:17,051 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [285748868] [2024-10-14 03:35:17,051 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [285748868] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:35:17,052 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:35:17,052 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 03:35:17,053 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [51075434] [2024-10-14 03:35:17,053 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:35:17,053 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 03:35:17,053 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:35:17,054 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 03:35:17,054 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 03:35:17,054 INFO L87 Difference]: Start difference. First operand 193098 states and 302032 transitions. Second operand has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:35:22,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:35:22,094 INFO L93 Difference]: Finished difference Result 574916 states and 897387 transitions. [2024-10-14 03:35:22,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 03:35:22,095 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 0 states have call successors, (0), 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 101 [2024-10-14 03:35:22,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:35:23,264 INFO L225 Difference]: With dead ends: 574916 [2024-10-14 03:35:23,265 INFO L226 Difference]: Without dead ends: 381888 [2024-10-14 03:35:23,466 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 03:35:23,467 INFO L432 NwaCegarLoop]: 264 mSDtfsCounter, 144 mSDsluCounter, 184 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 448 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 03:35:23,467 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [144 Valid, 448 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 03:35:23,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 381888 states. [2024-10-14 03:35:30,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 381888 to 381886. [2024-10-14 03:35:31,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 381886 states, 381885 states have (on average 1.5479895780143236) internal successors, (591154), 381885 states have internal predecessors, (591154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:35:32,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 381886 states to 381886 states and 591154 transitions. [2024-10-14 03:35:32,685 INFO L78 Accepts]: Start accepts. Automaton has 381886 states and 591154 transitions. Word has length 101 [2024-10-14 03:35:32,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:35:32,686 INFO L471 AbstractCegarLoop]: Abstraction has 381886 states and 591154 transitions. [2024-10-14 03:35:32,687 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:35:32,687 INFO L276 IsEmpty]: Start isEmpty. Operand 381886 states and 591154 transitions. [2024-10-14 03:35:32,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-10-14 03:35:32,691 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:35:32,691 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-14 03:35:32,691 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-10-14 03:35:32,692 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:35:32,692 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:35:32,692 INFO L85 PathProgramCache]: Analyzing trace with hash -939013435, now seen corresponding path program 1 times [2024-10-14 03:35:32,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:35:32,693 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1977954194] [2024-10-14 03:35:32,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:35:32,695 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:35:32,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:35:32,756 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:35:32,757 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:35:32,757 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1977954194] [2024-10-14 03:35:32,757 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1977954194] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:35:32,757 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:35:32,757 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 03:35:32,757 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2111215524] [2024-10-14 03:35:32,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:35:32,758 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 03:35:32,758 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:35:32,758 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 03:35:32,759 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 03:35:32,759 INFO L87 Difference]: Start difference. First operand 381886 states and 591154 transitions. Second operand has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)