./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/seq-mthreaded/pals_lcr.5.ufo.BOUNDED-10.pals.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c7c6ca5d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/seq-mthreaded/pals_lcr.5.ufo.BOUNDED-10.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 f7497e4203b86f15acb74ef94ae3bce6255aa8233294110bb99f24cde0725dc7 --- Real Ultimate output --- This is Ultimate 0.2.5-?-c7c6ca5-m [2024-11-08 15:38:50,160 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 15:38:50,234 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-08 15:38:50,238 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 15:38:50,239 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 15:38:50,271 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 15:38:50,272 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 15:38:50,272 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 15:38:50,273 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 15:38:50,275 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 15:38:50,275 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 15:38:50,275 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 15:38:50,276 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 15:38:50,277 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 15:38:50,277 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 15:38:50,279 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 15:38:50,279 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 15:38:50,279 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 15:38:50,279 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 15:38:50,280 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 15:38:50,280 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 15:38:50,283 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 15:38:50,284 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 15:38:50,284 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 15:38:50,284 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 15:38:50,284 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 15:38:50,285 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 15:38:50,285 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 15:38:50,285 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 15:38:50,285 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 15:38:50,286 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 15:38:50,286 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 15:38:50,286 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 15:38:50,286 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 15:38:50,286 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 15:38:50,287 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 15:38:50,287 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 15:38:50,287 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 15:38:50,287 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 15:38:50,288 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 15:38:50,288 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 15:38:50,289 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 15:38:50,289 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f7497e4203b86f15acb74ef94ae3bce6255aa8233294110bb99f24cde0725dc7 [2024-11-08 15:38:50,538 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 15:38:50,560 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 15:38:50,564 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 15:38:50,566 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 15:38:50,566 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 15:38:50,568 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded/pals_lcr.5.ufo.BOUNDED-10.pals.c [2024-11-08 15:38:51,985 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 15:38:52,214 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 15:38:52,214 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/pals_lcr.5.ufo.BOUNDED-10.pals.c [2024-11-08 15:38:52,229 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2dfbdfaff/2092d446433841b9b2afadcc6729f091/FLAGa39dc289b [2024-11-08 15:38:52,243 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2dfbdfaff/2092d446433841b9b2afadcc6729f091 [2024-11-08 15:38:52,246 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 15:38:52,247 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 15:38:52,249 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 15:38:52,249 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 15:38:52,255 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 15:38:52,255 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 03:38:52" (1/1) ... [2024-11-08 15:38:52,256 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@73364302 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:38:52, skipping insertion in model container [2024-11-08 15:38:52,257 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 03:38:52" (1/1) ... [2024-11-08 15:38:52,291 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 15:38:52,614 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/pals_lcr.5.ufo.BOUNDED-10.pals.c[11233,11246] [2024-11-08 15:38:52,620 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 15:38:52,633 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 15:38:52,678 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/pals_lcr.5.ufo.BOUNDED-10.pals.c[11233,11246] [2024-11-08 15:38:52,683 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 15:38:52,701 INFO L204 MainTranslator]: Completed translation [2024-11-08 15:38:52,702 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:38:52 WrapperNode [2024-11-08 15:38:52,702 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 15:38:52,703 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 15:38:52,703 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 15:38:52,703 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 15:38:52,710 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:38:52" (1/1) ... [2024-11-08 15:38:52,719 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:38:52" (1/1) ... [2024-11-08 15:38:52,751 INFO L138 Inliner]: procedures = 24, calls = 16, calls flagged for inlining = 11, calls inlined = 11, statements flattened = 338 [2024-11-08 15:38:52,752 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 15:38:52,752 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 15:38:52,752 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 15:38:52,753 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 15:38:52,764 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:38:52" (1/1) ... [2024-11-08 15:38:52,765 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:38:52" (1/1) ... [2024-11-08 15:38:52,768 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:38:52" (1/1) ... [2024-11-08 15:38:52,786 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-08 15:38:52,787 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:38:52" (1/1) ... [2024-11-08 15:38:52,787 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:38:52" (1/1) ... [2024-11-08 15:38:52,793 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:38:52" (1/1) ... [2024-11-08 15:38:52,798 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:38:52" (1/1) ... [2024-11-08 15:38:52,800 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:38:52" (1/1) ... [2024-11-08 15:38:52,802 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:38:52" (1/1) ... [2024-11-08 15:38:52,805 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 15:38:52,806 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 15:38:52,806 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 15:38:52,807 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 15:38:52,811 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:38:52" (1/1) ... [2024-11-08 15:38:52,825 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 15:38:52,842 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 15:38:52,858 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 15:38:52,865 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 15:38:52,907 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 15:38:52,907 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-08 15:38:52,908 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 15:38:52,908 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 15:38:52,994 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 15:38:52,996 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 15:38:53,427 INFO L? ?]: Removed 40 outVars from TransFormulas that were not future-live. [2024-11-08 15:38:53,428 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 15:38:53,444 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 15:38:53,444 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-08 15:38:53,445 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 03:38:53 BoogieIcfgContainer [2024-11-08 15:38:53,445 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 15:38:53,447 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 15:38:53,447 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 15:38:53,450 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 15:38:53,450 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 03:38:52" (1/3) ... [2024-11-08 15:38:53,451 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67c92bcf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 03:38:53, skipping insertion in model container [2024-11-08 15:38:53,451 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:38:52" (2/3) ... [2024-11-08 15:38:53,452 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67c92bcf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 03:38:53, skipping insertion in model container [2024-11-08 15:38:53,452 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 03:38:53" (3/3) ... [2024-11-08 15:38:53,454 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.5.ufo.BOUNDED-10.pals.c [2024-11-08 15:38:53,467 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 15:38:53,467 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-08 15:38:53,526 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 15:38:53,532 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;@69570d33, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 15:38:53,533 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-08 15:38:53,537 INFO L276 IsEmpty]: Start isEmpty. Operand has 83 states, 81 states have (on average 1.7530864197530864) internal successors, (142), 82 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:38:53,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-11-08 15:38:53,546 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:38:53,547 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] [2024-11-08 15:38:53,547 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:38:53,553 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:38:53,553 INFO L85 PathProgramCache]: Analyzing trace with hash -255059087, now seen corresponding path program 1 times [2024-11-08 15:38:53,562 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:38:53,563 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1299406760] [2024-11-08 15:38:53,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:38:53,564 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:38:53,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:38:53,865 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 15:38:53,866 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:38:53,866 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1299406760] [2024-11-08 15:38:53,867 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1299406760] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:38:53,867 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:38:53,867 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 15:38:53,870 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1719980832] [2024-11-08 15:38:53,871 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:38:53,876 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-08 15:38:53,877 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:38:53,902 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-08 15:38:53,902 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-08 15:38:53,905 INFO L87 Difference]: Start difference. First operand has 83 states, 81 states have (on average 1.7530864197530864) internal successors, (142), 82 states have internal predecessors, (142), 0 states have call successors, (0), 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 11.5) internal successors, (23), 2 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:38:53,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:38:53,932 INFO L93 Difference]: Finished difference Result 130 states and 216 transitions. [2024-11-08 15:38:53,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-08 15:38:53,935 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 11.5) internal successors, (23), 2 states have internal predecessors, (23), 0 states have call successors, (0), 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 23 [2024-11-08 15:38:53,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:38:53,945 INFO L225 Difference]: With dead ends: 130 [2024-11-08 15:38:53,945 INFO L226 Difference]: Without dead ends: 79 [2024-11-08 15:38:53,948 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 [2024-11-08 15:38:53,953 INFO L432 NwaCegarLoop]: 139 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 139 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 15:38:53,954 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 15:38:53,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2024-11-08 15:38:53,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 79. [2024-11-08 15:38:53,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79 states, 78 states have (on average 1.7307692307692308) internal successors, (135), 78 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:38:53,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 135 transitions. [2024-11-08 15:38:53,999 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 135 transitions. Word has length 23 [2024-11-08 15:38:54,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:38:54,001 INFO L471 AbstractCegarLoop]: Abstraction has 79 states and 135 transitions. [2024-11-08 15:38:54,002 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 11.5) internal successors, (23), 2 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:38:54,002 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 135 transitions. [2024-11-08 15:38:54,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-11-08 15:38:54,004 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:38:54,004 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] [2024-11-08 15:38:54,004 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-08 15:38:54,005 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:38:54,006 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:38:54,006 INFO L85 PathProgramCache]: Analyzing trace with hash 2045763503, now seen corresponding path program 1 times [2024-11-08 15:38:54,006 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:38:54,007 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1134282239] [2024-11-08 15:38:54,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:38:54,007 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:38:54,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:38:54,287 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 15:38:54,288 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:38:54,288 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1134282239] [2024-11-08 15:38:54,288 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1134282239] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:38:54,289 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:38:54,289 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 15:38:54,289 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1907714574] [2024-11-08 15:38:54,289 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:38:54,290 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 15:38:54,291 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:38:54,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 15:38:54,291 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 15:38:54,292 INFO L87 Difference]: Start difference. First operand 79 states and 135 transitions. Second operand has 5 states, 5 states have (on average 4.6) internal successors, (23), 5 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:38:54,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:38:54,396 INFO L93 Difference]: Finished difference Result 125 states and 206 transitions. [2024-11-08 15:38:54,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 15:38:54,397 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.6) internal successors, (23), 5 states have internal predecessors, (23), 0 states have call successors, (0), 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 23 [2024-11-08 15:38:54,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:38:54,398 INFO L225 Difference]: With dead ends: 125 [2024-11-08 15:38:54,400 INFO L226 Difference]: Without dead ends: 79 [2024-11-08 15:38:54,401 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 15:38:54,403 INFO L432 NwaCegarLoop]: 133 mSDtfsCounter, 0 mSDsluCounter, 363 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 496 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 15:38:54,403 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 496 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 15:38:54,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2024-11-08 15:38:54,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 79. [2024-11-08 15:38:54,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79 states, 78 states have (on average 1.3333333333333333) internal successors, (104), 78 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:38:54,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 104 transitions. [2024-11-08 15:38:54,416 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 104 transitions. Word has length 23 [2024-11-08 15:38:54,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:38:54,416 INFO L471 AbstractCegarLoop]: Abstraction has 79 states and 104 transitions. [2024-11-08 15:38:54,417 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.6) internal successors, (23), 5 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:38:54,417 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 104 transitions. [2024-11-08 15:38:54,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2024-11-08 15:38:54,418 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:38:54,418 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] [2024-11-08 15:38:54,418 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-08 15:38:54,419 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:38:54,421 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:38:54,421 INFO L85 PathProgramCache]: Analyzing trace with hash 1411199270, now seen corresponding path program 1 times [2024-11-08 15:38:54,421 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:38:54,421 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [96168456] [2024-11-08 15:38:54,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:38:54,422 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:38:54,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:38:54,696 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 15:38:54,699 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:38:54,699 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [96168456] [2024-11-08 15:38:54,700 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [96168456] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:38:54,700 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:38:54,700 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 15:38:54,700 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [416034517] [2024-11-08 15:38:54,701 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:38:54,702 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 15:38:54,702 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:38:54,703 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 15:38:54,705 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-08 15:38:54,705 INFO L87 Difference]: Start difference. First operand 79 states and 104 transitions. Second operand has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:38:55,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:38:55,031 INFO L93 Difference]: Finished difference Result 499 states and 774 transitions. [2024-11-08 15:38:55,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-08 15:38:55,032 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 0 states have call successors, (0), 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 53 [2024-11-08 15:38:55,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:38:55,039 INFO L225 Difference]: With dead ends: 499 [2024-11-08 15:38:55,039 INFO L226 Difference]: Without dead ends: 457 [2024-11-08 15:38:55,040 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2024-11-08 15:38:55,041 INFO L432 NwaCegarLoop]: 100 mSDtfsCounter, 758 mSDsluCounter, 1207 mSDsCounter, 0 mSdLazyCounter, 140 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 758 SdHoareTripleChecker+Valid, 1307 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 15:38:55,041 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [758 Valid, 1307 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 140 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 15:38:55,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 457 states. [2024-11-08 15:38:55,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 457 to 119. [2024-11-08 15:38:55,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119 states, 118 states have (on average 1.423728813559322) internal successors, (168), 118 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:38:55,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 168 transitions. [2024-11-08 15:38:55,072 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 168 transitions. Word has length 53 [2024-11-08 15:38:55,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:38:55,073 INFO L471 AbstractCegarLoop]: Abstraction has 119 states and 168 transitions. [2024-11-08 15:38:55,073 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:38:55,073 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 168 transitions. [2024-11-08 15:38:55,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-11-08 15:38:55,075 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:38:55,075 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] [2024-11-08 15:38:55,076 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-08 15:38:55,076 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:38:55,076 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:38:55,076 INFO L85 PathProgramCache]: Analyzing trace with hash 1832103350, now seen corresponding path program 1 times [2024-11-08 15:38:55,076 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:38:55,077 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [469144151] [2024-11-08 15:38:55,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:38:55,077 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:38:55,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:38:55,175 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 15:38:55,176 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:38:55,176 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [469144151] [2024-11-08 15:38:55,176 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [469144151] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:38:55,177 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:38:55,177 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 15:38:55,178 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [408011265] [2024-11-08 15:38:55,178 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:38:55,179 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 15:38:55,179 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:38:55,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 15:38:55,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 15:38:55,180 INFO L87 Difference]: Start difference. First operand 119 states and 168 transitions. Second operand has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:38:55,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:38:55,202 INFO L93 Difference]: Finished difference Result 272 states and 411 transitions. [2024-11-08 15:38:55,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 15:38:55,203 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 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 55 [2024-11-08 15:38:55,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:38:55,205 INFO L225 Difference]: With dead ends: 272 [2024-11-08 15:38:55,205 INFO L226 Difference]: Without dead ends: 190 [2024-11-08 15:38:55,205 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 15:38:55,206 INFO L432 NwaCegarLoop]: 102 mSDtfsCounter, 43 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 164 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 [2024-11-08 15:38:55,207 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 164 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 15:38:55,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2024-11-08 15:38:55,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 188. [2024-11-08 15:38:55,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 188 states, 187 states have (on average 1.4759358288770053) internal successors, (276), 187 states have internal predecessors, (276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:38:55,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 276 transitions. [2024-11-08 15:38:55,224 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 276 transitions. Word has length 55 [2024-11-08 15:38:55,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:38:55,224 INFO L471 AbstractCegarLoop]: Abstraction has 188 states and 276 transitions. [2024-11-08 15:38:55,225 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:38:55,225 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 276 transitions. [2024-11-08 15:38:55,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-11-08 15:38:55,227 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:38:55,227 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] [2024-11-08 15:38:55,227 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-08 15:38:55,228 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:38:55,228 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:38:55,228 INFO L85 PathProgramCache]: Analyzing trace with hash 1898596862, now seen corresponding path program 1 times [2024-11-08 15:38:55,229 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:38:55,229 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1584712801] [2024-11-08 15:38:55,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:38:55,229 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:38:55,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:38:55,634 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 15:38:55,634 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:38:55,634 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1584712801] [2024-11-08 15:38:55,634 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1584712801] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:38:55,635 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:38:55,635 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 15:38:55,635 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2120649713] [2024-11-08 15:38:55,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:38:55,635 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 15:38:55,636 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:38:55,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 15:38:55,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-08 15:38:55,638 INFO L87 Difference]: Start difference. First operand 188 states and 276 transitions. Second operand has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:38:55,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:38:55,836 INFO L93 Difference]: Finished difference Result 341 states and 516 transitions. [2024-11-08 15:38:55,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-08 15:38:55,837 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 0 states have call successors, (0), 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 55 [2024-11-08 15:38:55,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:38:55,838 INFO L225 Difference]: With dead ends: 341 [2024-11-08 15:38:55,838 INFO L226 Difference]: Without dead ends: 190 [2024-11-08 15:38:55,839 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2024-11-08 15:38:55,840 INFO L432 NwaCegarLoop]: 97 mSDtfsCounter, 254 mSDsluCounter, 253 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 254 SdHoareTripleChecker+Valid, 350 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 15:38:55,844 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [254 Valid, 350 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 15:38:55,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2024-11-08 15:38:55,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 188. [2024-11-08 15:38:55,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 188 states, 187 states have (on average 1.46524064171123) internal successors, (274), 187 states have internal predecessors, (274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:38:55,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 274 transitions. [2024-11-08 15:38:55,862 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 274 transitions. Word has length 55 [2024-11-08 15:38:55,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:38:55,863 INFO L471 AbstractCegarLoop]: Abstraction has 188 states and 274 transitions. [2024-11-08 15:38:55,864 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:38:55,864 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 274 transitions. [2024-11-08 15:38:55,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-11-08 15:38:55,869 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:38:55,869 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] [2024-11-08 15:38:55,870 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-08 15:38:55,870 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:38:55,870 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:38:55,870 INFO L85 PathProgramCache]: Analyzing trace with hash -1687762504, now seen corresponding path program 1 times [2024-11-08 15:38:55,870 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:38:55,871 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [156330278] [2024-11-08 15:38:55,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:38:55,871 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:38:55,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:38:56,159 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 15:38:56,161 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:38:56,161 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [156330278] [2024-11-08 15:38:56,161 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [156330278] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:38:56,161 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:38:56,161 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-08 15:38:56,162 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2135785677] [2024-11-08 15:38:56,163 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:38:56,163 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-08 15:38:56,163 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:38:56,164 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-08 15:38:56,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-08 15:38:56,166 INFO L87 Difference]: Start difference. First operand 188 states and 274 transitions. Second operand has 8 states, 8 states have (on average 7.0) internal successors, (56), 8 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:38:56,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:38:56,216 INFO L93 Difference]: Finished difference Result 196 states and 283 transitions. [2024-11-08 15:38:56,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-08 15:38:56,216 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.0) internal successors, (56), 8 states have internal predecessors, (56), 0 states have call successors, (0), 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 56 [2024-11-08 15:38:56,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:38:56,220 INFO L225 Difference]: With dead ends: 196 [2024-11-08 15:38:56,221 INFO L226 Difference]: Without dead ends: 194 [2024-11-08 15:38:56,221 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-08 15:38:56,222 INFO L432 NwaCegarLoop]: 98 mSDtfsCounter, 0 mSDsluCounter, 575 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 673 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 15:38:56,223 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 673 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 15:38:56,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states. [2024-11-08 15:38:56,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 194. [2024-11-08 15:38:56,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 194 states, 193 states have (on average 1.4455958549222798) internal successors, (279), 193 states have internal predecessors, (279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:38:56,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 279 transitions. [2024-11-08 15:38:56,232 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 279 transitions. Word has length 56 [2024-11-08 15:38:56,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:38:56,232 INFO L471 AbstractCegarLoop]: Abstraction has 194 states and 279 transitions. [2024-11-08 15:38:56,233 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.0) internal successors, (56), 8 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:38:56,233 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 279 transitions. [2024-11-08 15:38:56,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-11-08 15:38:56,234 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:38:56,234 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] [2024-11-08 15:38:56,235 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-08 15:38:56,235 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:38:56,235 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:38:56,235 INFO L85 PathProgramCache]: Analyzing trace with hash -407583458, now seen corresponding path program 1 times [2024-11-08 15:38:56,236 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:38:56,236 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1304917192] [2024-11-08 15:38:56,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:38:56,236 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:38:56,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:38:56,336 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 15:38:56,336 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:38:56,336 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1304917192] [2024-11-08 15:38:56,336 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1304917192] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:38:56,336 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:38:56,337 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 15:38:56,337 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [523970367] [2024-11-08 15:38:56,337 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:38:56,337 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 15:38:56,337 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:38:56,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 15:38:56,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 15:38:56,338 INFO L87 Difference]: Start difference. First operand 194 states and 279 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) [2024-11-08 15:38:56,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:38:56,359 INFO L93 Difference]: Finished difference Result 364 states and 540 transitions. [2024-11-08 15:38:56,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 15:38:56,360 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 [2024-11-08 15:38:56,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:38:56,363 INFO L225 Difference]: With dead ends: 364 [2024-11-08 15:38:56,363 INFO L226 Difference]: Without dead ends: 276 [2024-11-08 15:38:56,364 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 15:38:56,365 INFO L432 NwaCegarLoop]: 156 mSDtfsCounter, 57 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 224 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 15:38:56,366 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 224 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 15:38:56,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 276 states. [2024-11-08 15:38:56,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 276 to 274. [2024-11-08 15:38:56,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 274 states, 273 states have (on average 1.465201465201465) internal successors, (400), 273 states have internal predecessors, (400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:38:56,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 274 states and 400 transitions. [2024-11-08 15:38:56,378 INFO L78 Accepts]: Start accepts. Automaton has 274 states and 400 transitions. Word has length 57 [2024-11-08 15:38:56,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:38:56,378 INFO L471 AbstractCegarLoop]: Abstraction has 274 states and 400 transitions. [2024-11-08 15:38:56,378 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) [2024-11-08 15:38:56,379 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states and 400 transitions. [2024-11-08 15:38:56,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-11-08 15:38:56,380 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:38:56,380 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] [2024-11-08 15:38:56,382 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-08 15:38:56,383 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:38:56,383 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:38:56,383 INFO L85 PathProgramCache]: Analyzing trace with hash 1094534942, now seen corresponding path program 1 times [2024-11-08 15:38:56,383 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:38:56,383 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [60718459] [2024-11-08 15:38:56,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:38:56,384 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:38:56,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:38:56,438 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 15:38:56,438 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:38:56,438 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [60718459] [2024-11-08 15:38:56,439 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [60718459] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:38:56,439 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:38:56,439 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 15:38:56,439 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1721296471] [2024-11-08 15:38:56,439 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:38:56,440 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 15:38:56,442 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:38:56,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 15:38:56,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 15:38:56,443 INFO L87 Difference]: Start difference. First operand 274 states and 400 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) [2024-11-08 15:38:56,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:38:56,462 INFO L93 Difference]: Finished difference Result 720 states and 1080 transitions. [2024-11-08 15:38:56,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 15:38:56,463 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 [2024-11-08 15:38:56,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:38:56,465 INFO L225 Difference]: With dead ends: 720 [2024-11-08 15:38:56,465 INFO L226 Difference]: Without dead ends: 485 [2024-11-08 15:38:56,466 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 15:38:56,469 INFO L432 NwaCegarLoop]: 148 mSDtfsCounter, 53 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 224 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 15:38:56,469 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 224 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 15:38:56,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 485 states. [2024-11-08 15:38:56,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 485 to 483. [2024-11-08 15:38:56,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 483 states, 482 states have (on average 1.4771784232365146) internal successors, (712), 482 states have internal predecessors, (712), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:38:56,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 483 states to 483 states and 712 transitions. [2024-11-08 15:38:56,484 INFO L78 Accepts]: Start accepts. Automaton has 483 states and 712 transitions. Word has length 57 [2024-11-08 15:38:56,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:38:56,484 INFO L471 AbstractCegarLoop]: Abstraction has 483 states and 712 transitions. [2024-11-08 15:38:56,484 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) [2024-11-08 15:38:56,485 INFO L276 IsEmpty]: Start isEmpty. Operand 483 states and 712 transitions. [2024-11-08 15:38:56,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-11-08 15:38:56,485 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:38:56,485 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] [2024-11-08 15:38:56,486 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-08 15:38:56,486 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:38:56,486 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:38:56,486 INFO L85 PathProgramCache]: Analyzing trace with hash -1120933858, now seen corresponding path program 1 times [2024-11-08 15:38:56,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:38:56,487 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1868752465] [2024-11-08 15:38:56,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:38:56,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:38:56,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:38:56,541 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 15:38:56,542 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:38:56,542 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1868752465] [2024-11-08 15:38:56,542 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1868752465] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:38:56,542 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:38:56,542 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 15:38:56,542 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [280958757] [2024-11-08 15:38:56,542 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:38:56,543 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 15:38:56,543 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:38:56,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 15:38:56,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 15:38:56,544 INFO L87 Difference]: Start difference. First operand 483 states and 712 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) [2024-11-08 15:38:56,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:38:56,574 INFO L93 Difference]: Finished difference Result 1323 states and 1974 transitions. [2024-11-08 15:38:56,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 15:38:56,578 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 [2024-11-08 15:38:56,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:38:56,581 INFO L225 Difference]: With dead ends: 1323 [2024-11-08 15:38:56,581 INFO L226 Difference]: Without dead ends: 879 [2024-11-08 15:38:56,583 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 15:38:56,584 INFO L432 NwaCegarLoop]: 146 mSDtfsCounter, 51 mSDsluCounter, 80 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 226 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 15:38:56,584 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 226 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 15:38:56,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 879 states. [2024-11-08 15:38:56,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 879 to 877. [2024-11-08 15:38:56,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 877 states, 876 states have (on average 1.4703196347031964) internal successors, (1288), 876 states have internal predecessors, (1288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:38:56,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 877 states to 877 states and 1288 transitions. [2024-11-08 15:38:56,613 INFO L78 Accepts]: Start accepts. Automaton has 877 states and 1288 transitions. Word has length 57 [2024-11-08 15:38:56,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:38:56,613 INFO L471 AbstractCegarLoop]: Abstraction has 877 states and 1288 transitions. [2024-11-08 15:38:56,614 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) [2024-11-08 15:38:56,614 INFO L276 IsEmpty]: Start isEmpty. Operand 877 states and 1288 transitions. [2024-11-08 15:38:56,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-11-08 15:38:56,614 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:38:56,614 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] [2024-11-08 15:38:56,614 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-08 15:38:56,615 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:38:56,615 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:38:56,615 INFO L85 PathProgramCache]: Analyzing trace with hash 659999006, now seen corresponding path program 1 times [2024-11-08 15:38:56,615 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:38:56,615 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1303183203] [2024-11-08 15:38:56,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:38:56,615 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:38:56,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:38:56,661 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 15:38:56,661 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:38:56,661 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1303183203] [2024-11-08 15:38:56,661 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1303183203] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:38:56,662 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:38:56,662 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 15:38:56,662 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1967246488] [2024-11-08 15:38:56,662 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:38:56,662 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 15:38:56,662 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:38:56,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 15:38:56,663 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 15:38:56,663 INFO L87 Difference]: Start difference. First operand 877 states and 1288 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) [2024-11-08 15:38:56,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:38:56,700 INFO L93 Difference]: Finished difference Result 2457 states and 3618 transitions. [2024-11-08 15:38:56,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 15:38:56,700 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 [2024-11-08 15:38:56,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:38:56,706 INFO L225 Difference]: With dead ends: 2457 [2024-11-08 15:38:56,706 INFO L226 Difference]: Without dead ends: 1619 [2024-11-08 15:38:56,707 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 15:38:56,708 INFO L432 NwaCegarLoop]: 144 mSDtfsCounter, 49 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 228 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 15:38:56,708 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 228 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 15:38:56,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1619 states. [2024-11-08 15:38:56,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1619 to 1617. [2024-11-08 15:38:56,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1617 states, 1616 states have (on average 1.4504950495049505) internal successors, (2344), 1616 states have internal predecessors, (2344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:38:56,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1617 states to 1617 states and 2344 transitions. [2024-11-08 15:38:56,774 INFO L78 Accepts]: Start accepts. Automaton has 1617 states and 2344 transitions. Word has length 57 [2024-11-08 15:38:56,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:38:56,774 INFO L471 AbstractCegarLoop]: Abstraction has 1617 states and 2344 transitions. [2024-11-08 15:38:56,774 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) [2024-11-08 15:38:56,774 INFO L276 IsEmpty]: Start isEmpty. Operand 1617 states and 2344 transitions. [2024-11-08 15:38:56,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-11-08 15:38:56,775 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:38:56,775 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] [2024-11-08 15:38:56,775 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-08 15:38:56,775 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:38:56,775 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:38:56,775 INFO L85 PathProgramCache]: Analyzing trace with hash -143727074, now seen corresponding path program 1 times [2024-11-08 15:38:56,776 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:38:56,776 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1659106747] [2024-11-08 15:38:56,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:38:56,776 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:38:56,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:38:56,823 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 15:38:56,824 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:38:56,824 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1659106747] [2024-11-08 15:38:56,824 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1659106747] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:38:56,824 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:38:56,824 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 15:38:56,824 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [159877392] [2024-11-08 15:38:56,824 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:38:56,824 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 15:38:56,825 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:38:56,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 15:38:56,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 15:38:56,825 INFO L87 Difference]: Start difference. First operand 1617 states and 2344 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) [2024-11-08 15:38:56,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:38:56,881 INFO L93 Difference]: Finished difference Result 4581 states and 6618 transitions. [2024-11-08 15:38:56,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 15:38:56,882 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 [2024-11-08 15:38:56,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:38:56,892 INFO L225 Difference]: With dead ends: 4581 [2024-11-08 15:38:56,892 INFO L226 Difference]: Without dead ends: 3003 [2024-11-08 15:38:56,895 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 15:38:56,895 INFO L432 NwaCegarLoop]: 158 mSDtfsCounter, 55 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 230 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 15:38:56,895 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 230 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 15:38:56,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3003 states. [2024-11-08 15:38:56,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3003 to 3001. [2024-11-08 15:38:56,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3001 states, 3000 states have (on average 1.4213333333333333) internal successors, (4264), 3000 states have internal predecessors, (4264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:38:56,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3001 states to 3001 states and 4264 transitions. [2024-11-08 15:38:56,978 INFO L78 Accepts]: Start accepts. Automaton has 3001 states and 4264 transitions. Word has length 57 [2024-11-08 15:38:56,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:38:56,978 INFO L471 AbstractCegarLoop]: Abstraction has 3001 states and 4264 transitions. [2024-11-08 15:38:56,978 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) [2024-11-08 15:38:56,978 INFO L276 IsEmpty]: Start isEmpty. Operand 3001 states and 4264 transitions. [2024-11-08 15:38:56,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-11-08 15:38:56,980 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:38:56,980 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-08 15:38:56,980 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-08 15:38:56,981 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:38:56,981 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:38:56,981 INFO L85 PathProgramCache]: Analyzing trace with hash -1172786557, now seen corresponding path program 1 times [2024-11-08 15:38:56,981 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:38:56,981 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1425226661] [2024-11-08 15:38:56,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:38:56,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:38:57,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:38:57,159 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-08 15:38:57,159 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:38:57,160 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1425226661] [2024-11-08 15:38:57,160 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1425226661] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:38:57,160 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:38:57,160 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 15:38:57,160 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1954369300] [2024-11-08 15:38:57,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:38:57,161 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 15:38:57,161 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:38:57,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 15:38:57,161 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-08 15:38:57,162 INFO L87 Difference]: Start difference. First operand 3001 states and 4264 transitions. Second operand has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 7 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:38:57,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:38:57,572 INFO L93 Difference]: Finished difference Result 17605 states and 25070 transitions. [2024-11-08 15:38:57,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-08 15:38:57,573 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 7 states have internal predecessors, (75), 0 states have call successors, (0), 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 76 [2024-11-08 15:38:57,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:38:57,629 INFO L225 Difference]: With dead ends: 17605 [2024-11-08 15:38:57,630 INFO L226 Difference]: Without dead ends: 15491 [2024-11-08 15:38:57,635 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-11-08 15:38:57,636 INFO L432 NwaCegarLoop]: 165 mSDtfsCounter, 549 mSDsluCounter, 545 mSDsCounter, 0 mSdLazyCounter, 113 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 549 SdHoareTripleChecker+Valid, 710 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 15:38:57,636 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [549 Valid, 710 Invalid, 117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 113 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 15:38:57,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15491 states. [2024-11-08 15:38:57,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15491 to 5545. [2024-11-08 15:38:57,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5545 states, 5544 states have (on average 1.4155844155844155) internal successors, (7848), 5544 states have internal predecessors, (7848), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:38:57,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5545 states to 5545 states and 7848 transitions. [2024-11-08 15:38:57,896 INFO L78 Accepts]: Start accepts. Automaton has 5545 states and 7848 transitions. Word has length 76 [2024-11-08 15:38:57,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:38:57,897 INFO L471 AbstractCegarLoop]: Abstraction has 5545 states and 7848 transitions. [2024-11-08 15:38:57,897 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 7 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:38:57,897 INFO L276 IsEmpty]: Start isEmpty. Operand 5545 states and 7848 transitions. [2024-11-08 15:38:57,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-11-08 15:38:57,899 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:38:57,900 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-08 15:38:57,900 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-08 15:38:57,900 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:38:57,901 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:38:57,901 INFO L85 PathProgramCache]: Analyzing trace with hash 329331843, now seen corresponding path program 1 times [2024-11-08 15:38:57,901 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:38:57,901 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1045505103] [2024-11-08 15:38:57,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:38:57,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:38:57,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:38:58,073 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-08 15:38:58,073 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:38:58,073 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1045505103] [2024-11-08 15:38:58,073 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1045505103] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:38:58,074 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:38:58,074 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 15:38:58,074 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [882317737] [2024-11-08 15:38:58,074 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:38:58,074 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 15:38:58,074 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:38:58,075 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 15:38:58,075 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-08 15:38:58,075 INFO L87 Difference]: Start difference. First operand 5545 states and 7848 transitions. Second operand has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 7 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) [2024-11-08 15:38:58,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:38:58,553 INFO L93 Difference]: Finished difference Result 20565 states and 29262 transitions. [2024-11-08 15:38:58,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-08 15:38:58,554 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 7 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 76 [2024-11-08 15:38:58,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:38:58,604 INFO L225 Difference]: With dead ends: 20565 [2024-11-08 15:38:58,605 INFO L226 Difference]: Without dead ends: 17603 [2024-11-08 15:38:58,611 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-11-08 15:38:58,613 INFO L432 NwaCegarLoop]: 165 mSDtfsCounter, 597 mSDsluCounter, 554 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 597 SdHoareTripleChecker+Valid, 719 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 15:38:58,614 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [597 Valid, 719 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 15:38:58,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17603 states. [2024-11-08 15:38:58,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17603 to 9561. [2024-11-08 15:38:59,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9561 states, 9560 states have (on average 1.4117154811715482) internal successors, (13496), 9560 states have internal predecessors, (13496), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:38:59,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9561 states to 9561 states and 13496 transitions. [2024-11-08 15:38:59,039 INFO L78 Accepts]: Start accepts. Automaton has 9561 states and 13496 transitions. Word has length 76 [2024-11-08 15:38:59,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:38:59,039 INFO L471 AbstractCegarLoop]: Abstraction has 9561 states and 13496 transitions. [2024-11-08 15:38:59,040 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 7 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) [2024-11-08 15:38:59,040 INFO L276 IsEmpty]: Start isEmpty. Operand 9561 states and 13496 transitions. [2024-11-08 15:38:59,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-11-08 15:38:59,042 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:38:59,042 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-08 15:38:59,042 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-08 15:38:59,043 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:38:59,043 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:38:59,043 INFO L85 PathProgramCache]: Analyzing trace with hash -1886136957, now seen corresponding path program 1 times [2024-11-08 15:38:59,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:38:59,043 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1846638485] [2024-11-08 15:38:59,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:38:59,044 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:38:59,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:38:59,200 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-08 15:38:59,200 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:38:59,200 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1846638485] [2024-11-08 15:38:59,201 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1846638485] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:38:59,201 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:38:59,201 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 15:38:59,201 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1044228421] [2024-11-08 15:38:59,201 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:38:59,201 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 15:38:59,202 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:38:59,202 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 15:38:59,202 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-08 15:38:59,202 INFO L87 Difference]: Start difference. First operand 9561 states and 13496 transitions. Second operand has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 7 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:38:59,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:38:59,855 INFO L93 Difference]: Finished difference Result 23525 states and 33438 transitions. [2024-11-08 15:38:59,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-08 15:38:59,856 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 7 states have internal predecessors, (69), 0 states have call successors, (0), 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 76 [2024-11-08 15:38:59,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:38:59,897 INFO L225 Difference]: With dead ends: 23525 [2024-11-08 15:38:59,897 INFO L226 Difference]: Without dead ends: 20563 [2024-11-08 15:38:59,908 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-11-08 15:38:59,909 INFO L432 NwaCegarLoop]: 163 mSDtfsCounter, 641 mSDsluCounter, 537 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 641 SdHoareTripleChecker+Valid, 700 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 15:38:59,909 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [641 Valid, 700 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 15:38:59,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20563 states. [2024-11-08 15:39:00,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20563 to 12521. [2024-11-08 15:39:00,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12521 states, 12520 states have (on average 1.4115015974440894) internal successors, (17672), 12520 states have internal predecessors, (17672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:39:00,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12521 states to 12521 states and 17672 transitions. [2024-11-08 15:39:00,408 INFO L78 Accepts]: Start accepts. Automaton has 12521 states and 17672 transitions. Word has length 76 [2024-11-08 15:39:00,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:39:00,408 INFO L471 AbstractCegarLoop]: Abstraction has 12521 states and 17672 transitions. [2024-11-08 15:39:00,409 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 7 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:39:00,409 INFO L276 IsEmpty]: Start isEmpty. Operand 12521 states and 17672 transitions. [2024-11-08 15:39:00,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-11-08 15:39:00,411 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:39:00,412 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-08 15:39:00,412 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-08 15:39:00,412 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:39:00,412 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:39:00,412 INFO L85 PathProgramCache]: Analyzing trace with hash -105204093, now seen corresponding path program 1 times [2024-11-08 15:39:00,413 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:39:00,413 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [73531735] [2024-11-08 15:39:00,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:39:00,413 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:39:00,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:39:00,633 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-08 15:39:00,634 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:39:00,634 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [73531735] [2024-11-08 15:39:00,634 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [73531735] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:39:00,634 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:39:00,634 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 15:39:00,634 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1056257572] [2024-11-08 15:39:00,634 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:39:00,635 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 15:39:00,635 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:39:00,635 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 15:39:00,636 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-08 15:39:00,636 INFO L87 Difference]: Start difference. First operand 12521 states and 17672 transitions. Second operand has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 7 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) [2024-11-08 15:39:01,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:39:01,163 INFO L93 Difference]: Finished difference Result 26485 states and 37614 transitions. [2024-11-08 15:39:01,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-08 15:39:01,164 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 7 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 76 [2024-11-08 15:39:01,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:39:01,206 INFO L225 Difference]: With dead ends: 26485 [2024-11-08 15:39:01,206 INFO L226 Difference]: Without dead ends: 23523 [2024-11-08 15:39:01,216 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-11-08 15:39:01,217 INFO L432 NwaCegarLoop]: 163 mSDtfsCounter, 599 mSDsluCounter, 563 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 599 SdHoareTripleChecker+Valid, 726 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 15:39:01,217 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [599 Valid, 726 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 15:39:01,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23523 states. [2024-11-08 15:39:01,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23523 to 15481. [2024-11-08 15:39:01,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15481 states, 15480 states have (on average 1.4113695090439276) internal successors, (21848), 15480 states have internal predecessors, (21848), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:39:01,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15481 states to 15481 states and 21848 transitions. [2024-11-08 15:39:01,785 INFO L78 Accepts]: Start accepts. Automaton has 15481 states and 21848 transitions. Word has length 76 [2024-11-08 15:39:01,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:39:01,785 INFO L471 AbstractCegarLoop]: Abstraction has 15481 states and 21848 transitions. [2024-11-08 15:39:01,785 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 7 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) [2024-11-08 15:39:01,786 INFO L276 IsEmpty]: Start isEmpty. Operand 15481 states and 21848 transitions. [2024-11-08 15:39:01,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-11-08 15:39:01,789 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:39:01,789 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-08 15:39:01,789 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-08 15:39:01,789 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:39:01,790 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:39:01,790 INFO L85 PathProgramCache]: Analyzing trace with hash -908930173, now seen corresponding path program 1 times [2024-11-08 15:39:01,790 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:39:01,790 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1782282397] [2024-11-08 15:39:01,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:39:01,791 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:39:01,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:39:01,992 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-08 15:39:01,992 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:39:01,992 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1782282397] [2024-11-08 15:39:01,992 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1782282397] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:39:01,992 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:39:01,992 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 15:39:01,993 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [227233369] [2024-11-08 15:39:01,993 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:39:01,993 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 15:39:01,993 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:39:01,994 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 15:39:01,994 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-08 15:39:01,997 INFO L87 Difference]: Start difference. First operand 15481 states and 21848 transitions. Second operand has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 7 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:39:02,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:39:02,775 INFO L93 Difference]: Finished difference Result 29445 states and 41790 transitions. [2024-11-08 15:39:02,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-08 15:39:02,776 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 7 states have internal predecessors, (73), 0 states have call successors, (0), 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 76 [2024-11-08 15:39:02,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:39:02,829 INFO L225 Difference]: With dead ends: 29445 [2024-11-08 15:39:02,830 INFO L226 Difference]: Without dead ends: 26483 [2024-11-08 15:39:02,843 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-11-08 15:39:02,844 INFO L432 NwaCegarLoop]: 162 mSDtfsCounter, 553 mSDsluCounter, 644 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 553 SdHoareTripleChecker+Valid, 806 SdHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 15:39:02,844 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [553 Valid, 806 Invalid, 116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 15:39:02,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26483 states. [2024-11-08 15:39:03,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26483 to 18441. [2024-11-08 15:39:03,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18441 states, 18440 states have (on average 1.4112798264642084) internal successors, (26024), 18440 states have internal predecessors, (26024), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:39:03,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18441 states to 18441 states and 26024 transitions. [2024-11-08 15:39:03,463 INFO L78 Accepts]: Start accepts. Automaton has 18441 states and 26024 transitions. Word has length 76 [2024-11-08 15:39:03,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:39:03,463 INFO L471 AbstractCegarLoop]: Abstraction has 18441 states and 26024 transitions. [2024-11-08 15:39:03,464 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 7 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:39:03,464 INFO L276 IsEmpty]: Start isEmpty. Operand 18441 states and 26024 transitions. [2024-11-08 15:39:03,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-08 15:39:03,466 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:39:03,467 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 15:39:03,467 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-08 15:39:03,467 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:39:03,468 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:39:03,468 INFO L85 PathProgramCache]: Analyzing trace with hash -981258812, now seen corresponding path program 1 times [2024-11-08 15:39:03,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:39:03,468 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [954006538] [2024-11-08 15:39:03,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:39:03,468 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:39:03,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:39:03,568 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 15:39:03,568 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:39:03,568 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [954006538] [2024-11-08 15:39:03,569 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [954006538] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:39:03,569 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:39:03,569 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 15:39:03,569 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [857648578] [2024-11-08 15:39:03,569 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:39:03,570 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 15:39:03,570 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:39:03,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 15:39:03,570 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 15:39:03,571 INFO L87 Difference]: Start difference. First operand 18441 states and 26024 transitions. Second operand has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:39:04,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:39:04,004 INFO L93 Difference]: Finished difference Result 36845 states and 52010 transitions. [2024-11-08 15:39:04,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 15:39:04,005 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 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 77 [2024-11-08 15:39:04,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:39:04,041 INFO L225 Difference]: With dead ends: 36845 [2024-11-08 15:39:04,041 INFO L226 Difference]: Without dead ends: 18443 [2024-11-08 15:39:04,059 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 15:39:04,060 INFO L432 NwaCegarLoop]: 138 mSDtfsCounter, 45 mSDsluCounter, 92 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 230 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 15:39:04,060 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 230 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 15:39:04,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18443 states. [2024-11-08 15:39:04,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18443 to 18441. [2024-11-08 15:39:04,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18441 states, 18440 states have (on average 1.3952277657266812) internal successors, (25728), 18440 states have internal predecessors, (25728), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:39:04,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18441 states to 18441 states and 25728 transitions. [2024-11-08 15:39:04,663 INFO L78 Accepts]: Start accepts. Automaton has 18441 states and 25728 transitions. Word has length 77 [2024-11-08 15:39:04,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:39:04,663 INFO L471 AbstractCegarLoop]: Abstraction has 18441 states and 25728 transitions. [2024-11-08 15:39:04,664 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:39:04,664 INFO L276 IsEmpty]: Start isEmpty. Operand 18441 states and 25728 transitions. [2024-11-08 15:39:04,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-11-08 15:39:04,669 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:39:04,669 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 15:39:04,670 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-08 15:39:04,670 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:39:04,670 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:39:04,670 INFO L85 PathProgramCache]: Analyzing trace with hash 1342228763, now seen corresponding path program 1 times [2024-11-08 15:39:04,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:39:04,671 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1249043340] [2024-11-08 15:39:04,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:39:04,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:39:04,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:39:04,802 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 15:39:04,803 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:39:04,803 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1249043340] [2024-11-08 15:39:04,803 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1249043340] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:39:04,803 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:39:04,803 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 15:39:04,804 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1169335143] [2024-11-08 15:39:04,804 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:39:04,804 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 15:39:04,804 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:39:04,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 15:39:04,805 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 15:39:04,805 INFO L87 Difference]: Start difference. First operand 18441 states and 25728 transitions. Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:39:05,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:39:05,032 INFO L93 Difference]: Finished difference Result 25328 states and 35422 transitions. [2024-11-08 15:39:05,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 15:39:05,032 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 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 78 [2024-11-08 15:39:05,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:39:05,049 INFO L225 Difference]: With dead ends: 25328 [2024-11-08 15:39:05,050 INFO L226 Difference]: Without dead ends: 6926 [2024-11-08 15:39:05,069 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 15:39:05,070 INFO L432 NwaCegarLoop]: 136 mSDtfsCounter, 39 mSDsluCounter, 91 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 227 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 15:39:05,070 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 227 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 15:39:05,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6926 states. [2024-11-08 15:39:05,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6926 to 6918. [2024-11-08 15:39:05,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6918 states, 6917 states have (on average 1.3909209194737604) internal successors, (9621), 6917 states have internal predecessors, (9621), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:39:05,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6918 states to 6918 states and 9621 transitions. [2024-11-08 15:39:05,313 INFO L78 Accepts]: Start accepts. Automaton has 6918 states and 9621 transitions. Word has length 78 [2024-11-08 15:39:05,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:39:05,314 INFO L471 AbstractCegarLoop]: Abstraction has 6918 states and 9621 transitions. [2024-11-08 15:39:05,314 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:39:05,314 INFO L276 IsEmpty]: Start isEmpty. Operand 6918 states and 9621 transitions. [2024-11-08 15:39:05,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-08 15:39:05,316 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:39:05,316 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-08 15:39:05,316 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-08 15:39:05,317 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:39:05,317 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:39:05,317 INFO L85 PathProgramCache]: Analyzing trace with hash -1119392618, now seen corresponding path program 1 times [2024-11-08 15:39:05,317 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:39:05,318 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2032069999] [2024-11-08 15:39:05,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:39:05,318 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:39:05,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:39:05,458 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 15:39:05,458 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:39:05,458 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2032069999] [2024-11-08 15:39:05,458 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2032069999] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:39:05,459 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:39:05,459 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 15:39:05,459 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [970997838] [2024-11-08 15:39:05,459 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:39:05,460 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 15:39:05,460 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:39:05,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 15:39:05,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 15:39:05,461 INFO L87 Difference]: Start difference. First operand 6918 states and 9621 transitions. Second operand has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:39:05,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:39:05,566 INFO L93 Difference]: Finished difference Result 10354 states and 14407 transitions. [2024-11-08 15:39:05,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 15:39:05,567 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 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 79 [2024-11-08 15:39:05,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:39:05,574 INFO L225 Difference]: With dead ends: 10354 [2024-11-08 15:39:05,575 INFO L226 Difference]: Without dead ends: 3488 [2024-11-08 15:39:05,584 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 15:39:05,586 INFO L432 NwaCegarLoop]: 130 mSDtfsCounter, 41 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 206 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 15:39:05,586 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 206 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 15:39:05,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3488 states. [2024-11-08 15:39:05,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3488 to 3486. [2024-11-08 15:39:05,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3486 states, 3485 states have (on average 1.3730272596843616) internal successors, (4785), 3485 states have internal predecessors, (4785), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:39:05,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3486 states to 3486 states and 4785 transitions. [2024-11-08 15:39:05,737 INFO L78 Accepts]: Start accepts. Automaton has 3486 states and 4785 transitions. Word has length 79 [2024-11-08 15:39:05,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:39:05,737 INFO L471 AbstractCegarLoop]: Abstraction has 3486 states and 4785 transitions. [2024-11-08 15:39:05,737 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:39:05,738 INFO L276 IsEmpty]: Start isEmpty. Operand 3486 states and 4785 transitions. [2024-11-08 15:39:05,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-08 15:39:05,739 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:39:05,739 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 15:39:05,739 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-08 15:39:05,739 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:39:05,741 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:39:05,741 INFO L85 PathProgramCache]: Analyzing trace with hash 1495153128, now seen corresponding path program 1 times [2024-11-08 15:39:05,741 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:39:05,741 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1735660994] [2024-11-08 15:39:05,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:39:05,741 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:39:05,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:39:05,839 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 15:39:05,839 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:39:05,840 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1735660994] [2024-11-08 15:39:05,840 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1735660994] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:39:05,840 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:39:05,840 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 15:39:05,840 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [317611801] [2024-11-08 15:39:05,840 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:39:05,840 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 15:39:05,841 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:39:05,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 15:39:05,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 15:39:05,841 INFO L87 Difference]: Start difference. First operand 3486 states and 4785 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:39:05,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:39:05,881 INFO L93 Difference]: Finished difference Result 5206 states and 7153 transitions. [2024-11-08 15:39:05,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 15:39:05,881 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 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 81 [2024-11-08 15:39:05,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:39:05,885 INFO L225 Difference]: With dead ends: 5206 [2024-11-08 15:39:05,885 INFO L226 Difference]: Without dead ends: 1772 [2024-11-08 15:39:05,888 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 15:39:05,889 INFO L432 NwaCegarLoop]: 123 mSDtfsCounter, 38 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 191 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 15:39:05,890 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 191 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 15:39:05,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1772 states. [2024-11-08 15:39:05,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1772 to 1770. [2024-11-08 15:39:05,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1770 states, 1769 states have (on average 1.3527416619559074) internal successors, (2393), 1769 states have internal predecessors, (2393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:39:05,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1770 states to 1770 states and 2393 transitions. [2024-11-08 15:39:05,934 INFO L78 Accepts]: Start accepts. Automaton has 1770 states and 2393 transitions. Word has length 81 [2024-11-08 15:39:05,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:39:05,934 INFO L471 AbstractCegarLoop]: Abstraction has 1770 states and 2393 transitions. [2024-11-08 15:39:05,934 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:39:05,934 INFO L276 IsEmpty]: Start isEmpty. Operand 1770 states and 2393 transitions. [2024-11-08 15:39:05,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-11-08 15:39:05,935 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:39:05,935 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-08 15:39:05,935 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-08 15:39:05,935 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:39:05,936 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:39:05,936 INFO L85 PathProgramCache]: Analyzing trace with hash 572569018, now seen corresponding path program 1 times [2024-11-08 15:39:05,936 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:39:05,936 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1356458684] [2024-11-08 15:39:05,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:39:05,936 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:39:05,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:39:06,035 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 15:39:06,036 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:39:06,036 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1356458684] [2024-11-08 15:39:06,036 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1356458684] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:39:06,036 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:39:06,036 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 15:39:06,036 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1166179182] [2024-11-08 15:39:06,036 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:39:06,036 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 15:39:06,036 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:39:06,037 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 15:39:06,037 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 15:39:06,037 INFO L87 Difference]: Start difference. First operand 1770 states and 2393 transitions. Second operand has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:39:06,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:39:06,086 INFO L93 Difference]: Finished difference Result 2632 states and 3565 transitions. [2024-11-08 15:39:06,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 15:39:06,087 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 0 states have call successors, (0), 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 83 [2024-11-08 15:39:06,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:39:06,089 INFO L225 Difference]: With dead ends: 2632 [2024-11-08 15:39:06,089 INFO L226 Difference]: Without dead ends: 914 [2024-11-08 15:39:06,091 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 15:39:06,091 INFO L432 NwaCegarLoop]: 116 mSDtfsCounter, 35 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 176 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 15:39:06,092 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 176 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 15:39:06,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 914 states. [2024-11-08 15:39:06,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 914 to 912. [2024-11-08 15:39:06,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 912 states, 911 states have (on average 1.3282107574094402) internal successors, (1210), 911 states have internal predecessors, (1210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:39:06,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 912 states to 912 states and 1210 transitions. [2024-11-08 15:39:06,117 INFO L78 Accepts]: Start accepts. Automaton has 912 states and 1210 transitions. Word has length 83 [2024-11-08 15:39:06,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:39:06,118 INFO L471 AbstractCegarLoop]: Abstraction has 912 states and 1210 transitions. [2024-11-08 15:39:06,118 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:39:06,118 INFO L276 IsEmpty]: Start isEmpty. Operand 912 states and 1210 transitions. [2024-11-08 15:39:06,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-11-08 15:39:06,119 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:39:06,119 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 15:39:06,119 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-08 15:39:06,120 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:39:06,120 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:39:06,120 INFO L85 PathProgramCache]: Analyzing trace with hash 1095761932, now seen corresponding path program 1 times [2024-11-08 15:39:06,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:39:06,120 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [77075627] [2024-11-08 15:39:06,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:39:06,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:39:06,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:39:06,298 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 4 proven. 11 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-08 15:39:06,299 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:39:06,299 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [77075627] [2024-11-08 15:39:06,299 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [77075627] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 15:39:06,299 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [60471516] [2024-11-08 15:39:06,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:39:06,300 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 15:39:06,300 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 15:39:06,302 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 15:39:06,303 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-08 15:39:06,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:39:06,450 INFO L255 TraceCheckSpWp]: Trace formula consists of 404 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-08 15:39:06,464 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 15:39:06,768 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 6 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 15:39:06,768 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 15:39:07,344 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 4 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 15:39:07,344 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [60471516] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 15:39:07,344 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 15:39:07,344 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 7, 6] total 13 [2024-11-08 15:39:07,345 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1826849344] [2024-11-08 15:39:07,345 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 15:39:07,345 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-08 15:39:07,346 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:39:07,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-08 15:39:07,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=96, Unknown=0, NotChecked=0, Total=156 [2024-11-08 15:39:07,347 INFO L87 Difference]: Start difference. First operand 912 states and 1210 transitions. Second operand has 13 states, 13 states have (on average 18.46153846153846) internal successors, (240), 13 states have internal predecessors, (240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:39:07,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:39:07,732 INFO L93 Difference]: Finished difference Result 4666 states and 6101 transitions. [2024-11-08 15:39:07,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-08 15:39:07,733 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 18.46153846153846) internal successors, (240), 13 states have internal predecessors, (240), 0 states have call successors, (0), 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 85 [2024-11-08 15:39:07,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:39:07,739 INFO L225 Difference]: With dead ends: 4666 [2024-11-08 15:39:07,740 INFO L226 Difference]: Without dead ends: 3763 [2024-11-08 15:39:07,742 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 175 GetRequests, 161 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=91, Invalid=149, Unknown=0, NotChecked=0, Total=240 [2024-11-08 15:39:07,743 INFO L432 NwaCegarLoop]: 192 mSDtfsCounter, 351 mSDsluCounter, 824 mSDsCounter, 0 mSdLazyCounter, 212 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 351 SdHoareTripleChecker+Valid, 1016 SdHoareTripleChecker+Invalid, 223 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 212 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 15:39:07,744 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [351 Valid, 1016 Invalid, 223 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 212 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 15:39:07,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3763 states. [2024-11-08 15:39:07,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3763 to 3327. [2024-11-08 15:39:07,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3327 states, 3326 states have (on average 1.289837642814191) internal successors, (4290), 3326 states have internal predecessors, (4290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:39:07,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3327 states to 3327 states and 4290 transitions. [2024-11-08 15:39:07,863 INFO L78 Accepts]: Start accepts. Automaton has 3327 states and 4290 transitions. Word has length 85 [2024-11-08 15:39:07,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:39:07,863 INFO L471 AbstractCegarLoop]: Abstraction has 3327 states and 4290 transitions. [2024-11-08 15:39:07,863 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 18.46153846153846) internal successors, (240), 13 states have internal predecessors, (240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:39:07,863 INFO L276 IsEmpty]: Start isEmpty. Operand 3327 states and 4290 transitions. [2024-11-08 15:39:07,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-11-08 15:39:07,864 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:39:07,864 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 15:39:07,883 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-08 15:39:08,068 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2024-11-08 15:39:08,069 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:39:08,069 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:39:08,069 INFO L85 PathProgramCache]: Analyzing trace with hash 840781523, now seen corresponding path program 1 times [2024-11-08 15:39:08,069 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:39:08,069 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [333474520] [2024-11-08 15:39:08,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:39:08,069 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:39:08,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:39:09,370 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 13 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 15:39:09,371 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:39:09,371 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [333474520] [2024-11-08 15:39:09,371 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [333474520] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 15:39:09,371 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [207709444] [2024-11-08 15:39:09,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:39:09,372 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 15:39:09,373 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 15:39:09,374 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 15:39:09,376 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-08 15:39:09,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:39:09,530 INFO L255 TraceCheckSpWp]: Trace formula consists of 407 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-08 15:39:09,535 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 15:39:10,118 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 13 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 15:39:10,118 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 15:39:11,136 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 13 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 15:39:11,138 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [207709444] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 15:39:11,138 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 15:39:11,138 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 9, 9] total 26 [2024-11-08 15:39:11,139 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1915678213] [2024-11-08 15:39:11,139 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 15:39:11,139 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2024-11-08 15:39:11,140 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:39:11,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2024-11-08 15:39:11,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=115, Invalid=587, Unknown=0, NotChecked=0, Total=702 [2024-11-08 15:39:11,141 INFO L87 Difference]: Start difference. First operand 3327 states and 4290 transitions. Second operand has 27 states, 27 states have (on average 7.703703703703703) internal successors, (208), 26 states have internal predecessors, (208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:39:11,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:39:11,964 INFO L93 Difference]: Finished difference Result 9955 states and 12920 transitions. [2024-11-08 15:39:11,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-08 15:39:11,964 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 7.703703703703703) internal successors, (208), 26 states have internal predecessors, (208), 0 states have call successors, (0), 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 86 [2024-11-08 15:39:11,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:39:11,976 INFO L225 Difference]: With dead ends: 9955 [2024-11-08 15:39:11,977 INFO L226 Difference]: Without dead ends: 6765 [2024-11-08 15:39:11,982 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 193 GetRequests, 157 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 265 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=323, Invalid=1083, Unknown=0, NotChecked=0, Total=1406 [2024-11-08 15:39:11,983 INFO L432 NwaCegarLoop]: 71 mSDtfsCounter, 549 mSDsluCounter, 533 mSDsCounter, 0 mSdLazyCounter, 538 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 549 SdHoareTripleChecker+Valid, 604 SdHoareTripleChecker+Invalid, 550 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 538 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-08 15:39:11,984 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [549 Valid, 604 Invalid, 550 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 538 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-08 15:39:11,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6765 states. [2024-11-08 15:39:12,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6765 to 6681. [2024-11-08 15:39:12,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6681 states, 6680 states have (on average 1.2790419161676647) internal successors, (8544), 6680 states have internal predecessors, (8544), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:39:12,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6681 states to 6681 states and 8544 transitions. [2024-11-08 15:39:12,242 INFO L78 Accepts]: Start accepts. Automaton has 6681 states and 8544 transitions. Word has length 86 [2024-11-08 15:39:12,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:39:12,242 INFO L471 AbstractCegarLoop]: Abstraction has 6681 states and 8544 transitions. [2024-11-08 15:39:12,243 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 7.703703703703703) internal successors, (208), 26 states have internal predecessors, (208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:39:12,243 INFO L276 IsEmpty]: Start isEmpty. Operand 6681 states and 8544 transitions. [2024-11-08 15:39:12,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-11-08 15:39:12,244 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:39:12,244 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 15:39:12,261 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-08 15:39:12,448 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2024-11-08 15:39:12,449 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:39:12,449 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:39:12,449 INFO L85 PathProgramCache]: Analyzing trace with hash -2139564589, now seen corresponding path program 1 times [2024-11-08 15:39:12,449 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:39:12,449 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [457097619] [2024-11-08 15:39:12,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:39:12,450 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:39:12,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:39:12,928 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 15 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 15:39:12,928 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:39:12,928 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [457097619] [2024-11-08 15:39:12,928 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [457097619] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 15:39:12,928 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [835978979] [2024-11-08 15:39:12,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:39:12,929 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 15:39:12,929 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 15:39:12,931 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 15:39:12,933 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-08 15:39:13,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:39:13,067 INFO L255 TraceCheckSpWp]: Trace formula consists of 407 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-08 15:39:13,072 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 15:39:13,452 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 15 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 15:39:13,452 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 15:39:14,344 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 15 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 15:39:14,344 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [835978979] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 15:39:14,344 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 15:39:14,345 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 20 [2024-11-08 15:39:14,345 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1984222862] [2024-11-08 15:39:14,345 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 15:39:14,345 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-08 15:39:14,346 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:39:14,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-08 15:39:14,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=343, Unknown=0, NotChecked=0, Total=420 [2024-11-08 15:39:14,347 INFO L87 Difference]: Start difference. First operand 6681 states and 8544 transitions. Second operand has 21 states, 21 states have (on average 8.619047619047619) internal successors, (181), 20 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:39:14,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:39:14,912 INFO L93 Difference]: Finished difference Result 19175 states and 24569 transitions. [2024-11-08 15:39:14,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-08 15:39:14,912 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 8.619047619047619) internal successors, (181), 20 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 86 [2024-11-08 15:39:14,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:39:14,933 INFO L225 Difference]: With dead ends: 19175 [2024-11-08 15:39:14,933 INFO L226 Difference]: Without dead ends: 13049 [2024-11-08 15:39:14,942 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 187 GetRequests, 160 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 130 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=203, Invalid=609, Unknown=0, NotChecked=0, Total=812 [2024-11-08 15:39:14,943 INFO L432 NwaCegarLoop]: 71 mSDtfsCounter, 921 mSDsluCounter, 428 mSDsCounter, 0 mSdLazyCounter, 319 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 921 SdHoareTripleChecker+Valid, 499 SdHoareTripleChecker+Invalid, 335 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 319 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 15:39:14,943 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [921 Valid, 499 Invalid, 335 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 319 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 15:39:14,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13049 states. [2024-11-08 15:39:15,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13049 to 13045. [2024-11-08 15:39:15,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13045 states, 13044 states have (on average 1.2726157620361853) internal successors, (16600), 13044 states have internal predecessors, (16600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:39:15,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13045 states to 13045 states and 16600 transitions. [2024-11-08 15:39:15,258 INFO L78 Accepts]: Start accepts. Automaton has 13045 states and 16600 transitions. Word has length 86 [2024-11-08 15:39:15,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:39:15,258 INFO L471 AbstractCegarLoop]: Abstraction has 13045 states and 16600 transitions. [2024-11-08 15:39:15,258 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 8.619047619047619) internal successors, (181), 20 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:39:15,259 INFO L276 IsEmpty]: Start isEmpty. Operand 13045 states and 16600 transitions. [2024-11-08 15:39:15,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-11-08 15:39:15,260 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:39:15,260 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 15:39:15,278 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-08 15:39:15,464 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 15:39:15,465 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:39:15,465 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:39:15,466 INFO L85 PathProgramCache]: Analyzing trace with hash -537738683, now seen corresponding path program 1 times [2024-11-08 15:39:15,466 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:39:15,466 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1549319924] [2024-11-08 15:39:15,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:39:15,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:39:15,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:39:15,944 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 5 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 15:39:15,945 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:39:15,945 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1549319924] [2024-11-08 15:39:15,945 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1549319924] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 15:39:15,945 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [932746363] [2024-11-08 15:39:15,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:39:15,945 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 15:39:15,945 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 15:39:15,947 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 15:39:15,950 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-08 15:39:16,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:39:16,082 INFO L255 TraceCheckSpWp]: Trace formula consists of 409 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-11-08 15:39:16,085 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 15:39:17,120 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 9 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 15:39:17,120 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 15:39:18,546 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 9 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 15:39:18,547 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [932746363] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 15:39:18,547 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 15:39:18,547 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 14, 12] total 32 [2024-11-08 15:39:18,547 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1590943970] [2024-11-08 15:39:18,547 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 15:39:18,547 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2024-11-08 15:39:18,548 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:39:18,548 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2024-11-08 15:39:18,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=135, Invalid=857, Unknown=0, NotChecked=0, Total=992 [2024-11-08 15:39:18,551 INFO L87 Difference]: Start difference. First operand 13045 states and 16600 transitions. Second operand has 32 states, 32 states have (on average 7.34375) internal successors, (235), 32 states have internal predecessors, (235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:39:25,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:39:25,151 INFO L93 Difference]: Finished difference Result 90563 states and 116119 transitions. [2024-11-08 15:39:25,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2024-11-08 15:39:25,151 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 32 states have (on average 7.34375) internal successors, (235), 32 states have internal predecessors, (235), 0 states have call successors, (0), 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 86 [2024-11-08 15:39:25,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:39:25,246 INFO L225 Difference]: With dead ends: 90563 [2024-11-08 15:39:25,246 INFO L226 Difference]: Without dead ends: 77743 [2024-11-08 15:39:25,279 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 246 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 97 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2960 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=1809, Invalid=7893, Unknown=0, NotChecked=0, Total=9702 [2024-11-08 15:39:25,280 INFO L432 NwaCegarLoop]: 79 mSDtfsCounter, 2716 mSDsluCounter, 1242 mSDsCounter, 0 mSdLazyCounter, 1404 mSolverCounterSat, 85 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2716 SdHoareTripleChecker+Valid, 1321 SdHoareTripleChecker+Invalid, 1489 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 85 IncrementalHoareTripleChecker+Valid, 1404 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-08 15:39:25,280 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2716 Valid, 1321 Invalid, 1489 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [85 Valid, 1404 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-08 15:39:25,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77743 states. [2024-11-08 15:39:27,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77743 to 77003. [2024-11-08 15:39:27,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77003 states, 77002 states have (on average 1.2544479364172358) internal successors, (96595), 77002 states have internal predecessors, (96595), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:39:27,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77003 states to 77003 states and 96595 transitions. [2024-11-08 15:39:27,533 INFO L78 Accepts]: Start accepts. Automaton has 77003 states and 96595 transitions. Word has length 86 [2024-11-08 15:39:27,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:39:27,533 INFO L471 AbstractCegarLoop]: Abstraction has 77003 states and 96595 transitions. [2024-11-08 15:39:27,534 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 7.34375) internal successors, (235), 32 states have internal predecessors, (235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:39:27,534 INFO L276 IsEmpty]: Start isEmpty. Operand 77003 states and 96595 transitions. [2024-11-08 15:39:27,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-11-08 15:39:27,536 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:39:27,537 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 15:39:27,550 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-08 15:39:27,737 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 15:39:27,738 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:39:27,738 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:39:27,738 INFO L85 PathProgramCache]: Analyzing trace with hash 491513045, now seen corresponding path program 1 times [2024-11-08 15:39:27,738 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:39:27,739 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1984536321] [2024-11-08 15:39:27,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:39:27,739 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:39:27,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:39:28,111 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 7 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 15:39:28,111 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:39:28,111 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1984536321] [2024-11-08 15:39:28,111 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1984536321] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 15:39:28,112 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [605787605] [2024-11-08 15:39:28,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:39:28,112 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 15:39:28,112 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 15:39:28,113 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 15:39:28,114 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-08 15:39:28,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:39:28,235 INFO L255 TraceCheckSpWp]: Trace formula consists of 413 conjuncts, 51 conjuncts are in the unsatisfiable core [2024-11-08 15:39:28,238 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 15:39:42,850 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 9 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 15:39:42,850 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 15:39:46,738 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 5 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 15:39:46,738 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [605787605] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 15:39:46,738 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 15:39:46,738 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 20, 22] total 49 [2024-11-08 15:39:46,738 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [432624689] [2024-11-08 15:39:46,739 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 15:39:46,739 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 49 states [2024-11-08 15:39:46,739 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:39:46,740 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2024-11-08 15:39:46,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=392, Invalid=1960, Unknown=0, NotChecked=0, Total=2352 [2024-11-08 15:39:46,741 INFO L87 Difference]: Start difference. First operand 77003 states and 96595 transitions. Second operand has 49 states, 49 states have (on average 4.979591836734694) internal successors, (244), 49 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:40:04,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:40:04,814 INFO L93 Difference]: Finished difference Result 265515 states and 335793 transitions. [2024-11-08 15:40:04,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2024-11-08 15:40:04,815 INFO L78 Accepts]: Start accepts. Automaton has has 49 states, 49 states have (on average 4.979591836734694) internal successors, (244), 49 states have internal predecessors, (244), 0 states have call successors, (0), 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 88 [2024-11-08 15:40:04,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:40:05,048 INFO L225 Difference]: With dead ends: 265515 [2024-11-08 15:40:05,048 INFO L226 Difference]: Without dead ends: 192037 [2024-11-08 15:40:05,114 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 261 GetRequests, 136 SyntacticMatches, 0 SemanticMatches, 125 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5075 ImplicationChecksByTransitivity, 13.6s TimeCoverageRelationStatistics Valid=3395, Invalid=12607, Unknown=0, NotChecked=0, Total=16002 [2024-11-08 15:40:05,115 INFO L432 NwaCegarLoop]: 103 mSDtfsCounter, 3392 mSDsluCounter, 1859 mSDsCounter, 0 mSdLazyCounter, 2630 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3392 SdHoareTripleChecker+Valid, 1962 SdHoareTripleChecker+Invalid, 2699 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 2630 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-11-08 15:40:05,115 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3392 Valid, 1962 Invalid, 2699 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 2630 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-11-08 15:40:05,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192037 states.