./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/seq-mthreaded/pals_lcr.5_overflow.ufo.UNBOUNDED.pals.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 023d838f Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/seq-mthreaded/pals_lcr.5_overflow.ufo.UNBOUNDED.pals.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 6994f5bfaf30a704120445031d2592cb0b289806736d22478b28cc84ed2b2216 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-023d838-m [2024-11-09 23:36:39,480 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 23:36:39,556 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-09 23:36:39,561 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 23:36:39,562 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 23:36:39,591 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 23:36:39,592 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 23:36:39,592 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 23:36:39,593 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-09 23:36:39,594 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-09 23:36:39,594 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 23:36:39,595 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 23:36:39,595 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 23:36:39,597 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 23:36:39,597 INFO L153 SettingsManager]: * Use SBE=true [2024-11-09 23:36:39,598 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 23:36:39,598 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 23:36:39,598 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 23:36:39,599 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 23:36:39,599 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 23:36:39,599 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 23:36:39,603 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 23:36:39,604 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 23:36:39,604 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 23:36:39,604 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 23:36:39,605 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 23:36:39,605 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 23:36:39,605 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 23:36:39,605 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-09 23:36:39,606 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 23:36:39,606 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 23:36:39,606 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 23:36:39,607 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 23:36:39,607 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 23:36:39,608 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 23:36:39,608 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 23:36:39,608 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-09 23:36:39,609 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 23:36:39,609 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 23:36:39,609 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-09 23:36:39,609 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-09 23:36:39,611 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 23:36:39,611 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6994f5bfaf30a704120445031d2592cb0b289806736d22478b28cc84ed2b2216 [2024-11-09 23:36:39,863 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 23:36:39,886 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 23:36:39,890 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 23:36:39,891 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 23:36:39,903 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 23:36:39,905 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded/pals_lcr.5_overflow.ufo.UNBOUNDED.pals.c [2024-11-09 23:36:41,335 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 23:36:41,552 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 23:36:41,553 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/pals_lcr.5_overflow.ufo.UNBOUNDED.pals.c [2024-11-09 23:36:41,568 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e15ca0f17/5207041028124403a94e8471deb62918/FLAGa37536c7a [2024-11-09 23:36:41,584 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e15ca0f17/5207041028124403a94e8471deb62918 [2024-11-09 23:36:41,588 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 23:36:41,589 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 23:36:41,590 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 23:36:41,592 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 23:36:41,597 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 23:36:41,598 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 11:36:41" (1/1) ... [2024-11-09 23:36:41,599 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@489f6762 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:36:41, skipping insertion in model container [2024-11-09 23:36:41,599 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 11:36:41" (1/1) ... [2024-11-09 23:36:41,635 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 23:36:41,901 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_overflow.ufo.UNBOUNDED.pals.c[11335,11348] [2024-11-09 23:36:41,904 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 23:36:41,913 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 23:36:41,958 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_overflow.ufo.UNBOUNDED.pals.c[11335,11348] [2024-11-09 23:36:41,959 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 23:36:41,980 INFO L204 MainTranslator]: Completed translation [2024-11-09 23:36:41,981 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:36:41 WrapperNode [2024-11-09 23:36:41,981 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 23:36:41,982 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 23:36:41,982 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 23:36:41,982 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 23:36:41,988 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:36:41" (1/1) ... [2024-11-09 23:36:41,996 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:36:41" (1/1) ... [2024-11-09 23:36:42,032 INFO L138 Inliner]: procedures = 25, calls = 16, calls flagged for inlining = 11, calls inlined = 11, statements flattened = 333 [2024-11-09 23:36:42,033 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 23:36:42,034 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 23:36:42,034 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 23:36:42,034 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 23:36:42,044 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:36:41" (1/1) ... [2024-11-09 23:36:42,044 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:36:41" (1/1) ... [2024-11-09 23:36:42,047 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:36:41" (1/1) ... [2024-11-09 23:36:42,069 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-09 23:36:42,069 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:36:41" (1/1) ... [2024-11-09 23:36:42,070 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:36:41" (1/1) ... [2024-11-09 23:36:42,079 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:36:41" (1/1) ... [2024-11-09 23:36:42,079 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:36:41" (1/1) ... [2024-11-09 23:36:42,081 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:36:41" (1/1) ... [2024-11-09 23:36:42,082 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:36:41" (1/1) ... [2024-11-09 23:36:42,085 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 23:36:42,086 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-09 23:36:42,086 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-09 23:36:42,086 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-09 23:36:42,087 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:36:41" (1/1) ... [2024-11-09 23:36:42,092 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 23:36:42,105 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 23:36:42,120 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-09 23:36:42,129 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-09 23:36:42,171 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 23:36:42,171 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-09 23:36:42,172 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 23:36:42,172 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 23:36:42,287 INFO L256 CfgBuilder]: Building ICFG [2024-11-09 23:36:42,289 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 23:36:42,787 INFO L? ?]: Removed 40 outVars from TransFormulas that were not future-live. [2024-11-09 23:36:42,788 INFO L307 CfgBuilder]: Performing block encoding [2024-11-09 23:36:42,804 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 23:36:42,804 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-09 23:36:42,805 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.11 11:36:42 BoogieIcfgContainer [2024-11-09 23:36:42,805 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-09 23:36:42,807 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 23:36:42,807 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 23:36:42,810 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 23:36:42,810 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 11:36:41" (1/3) ... [2024-11-09 23:36:42,810 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e32da43 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 11:36:42, skipping insertion in model container [2024-11-09 23:36:42,811 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:36:41" (2/3) ... [2024-11-09 23:36:42,811 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e32da43 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 11:36:42, skipping insertion in model container [2024-11-09 23:36:42,811 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.11 11:36:42" (3/3) ... [2024-11-09 23:36:42,812 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.5_overflow.ufo.UNBOUNDED.pals.c [2024-11-09 23:36:42,830 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 23:36:42,830 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 23:36:42,896 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 23:36:42,902 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;@77638190, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 23:36:42,902 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-09 23:36:42,909 INFO L276 IsEmpty]: Start isEmpty. Operand has 87 states, 85 states have (on average 1.7176470588235293) internal successors, (146), 86 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:36:42,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-11-09 23:36:42,918 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:36:42,919 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] [2024-11-09 23:36:42,919 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:36:42,923 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:36:42,924 INFO L85 PathProgramCache]: Analyzing trace with hash -2001842604, now seen corresponding path program 1 times [2024-11-09 23:36:42,932 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:36:42,932 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [974039469] [2024-11-09 23:36:42,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:36:42,933 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:36:43,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:36:43,215 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 23:36:43,215 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:36:43,215 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [974039469] [2024-11-09 23:36:43,216 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [974039469] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:36:43,216 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:36:43,216 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 23:36:43,219 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [498179221] [2024-11-09 23:36:43,220 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:36:43,224 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-09 23:36:43,224 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:36:43,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-09 23:36:43,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-09 23:36:43,251 INFO L87 Difference]: Start difference. First operand has 87 states, 85 states have (on average 1.7176470588235293) internal successors, (146), 86 states have internal predecessors, (146), 0 states have call successors, (0), 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 12.5) internal successors, (25), 2 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:36:43,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:36:43,270 INFO L93 Difference]: Finished difference Result 133 states and 220 transitions. [2024-11-09 23:36:43,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-09 23:36:43,273 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 0 states have call successors, (0), 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 25 [2024-11-09 23:36:43,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:36:43,280 INFO L225 Difference]: With dead ends: 133 [2024-11-09 23:36:43,280 INFO L226 Difference]: Without dead ends: 82 [2024-11-09 23:36:43,283 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 [2024-11-09 23:36:43,286 INFO L432 NwaCegarLoop]: 138 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, 138 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 [2024-11-09 23:36:43,287 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 23:36:43,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2024-11-09 23:36:43,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 82. [2024-11-09 23:36:43,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82 states, 81 states have (on average 1.7037037037037037) internal successors, (138), 81 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:36:43,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 138 transitions. [2024-11-09 23:36:43,324 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 138 transitions. Word has length 25 [2024-11-09 23:36:43,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:36:43,325 INFO L471 AbstractCegarLoop]: Abstraction has 82 states and 138 transitions. [2024-11-09 23:36:43,325 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:36:43,327 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 138 transitions. [2024-11-09 23:36:43,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-11-09 23:36:43,328 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:36:43,328 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] [2024-11-09 23:36:43,329 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 23:36:43,329 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:36:43,330 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:36:43,330 INFO L85 PathProgramCache]: Analyzing trace with hash 1884300467, now seen corresponding path program 1 times [2024-11-09 23:36:43,330 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:36:43,331 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [604287323] [2024-11-09 23:36:43,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:36:43,331 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:36:43,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:36:43,613 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 23:36:43,614 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:36:43,614 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [604287323] [2024-11-09 23:36:43,614 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [604287323] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:36:43,614 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:36:43,614 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 23:36:43,615 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1094194237] [2024-11-09 23:36:43,615 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:36:43,616 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 23:36:43,616 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:36:43,617 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 23:36:43,617 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 23:36:43,617 INFO L87 Difference]: Start difference. First operand 82 states and 138 transitions. Second operand has 5 states, 5 states have (on average 5.0) internal successors, (25), 5 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:36:43,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:36:43,709 INFO L93 Difference]: Finished difference Result 131 states and 212 transitions. [2024-11-09 23:36:43,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 23:36:43,710 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.0) internal successors, (25), 5 states have internal predecessors, (25), 0 states have call successors, (0), 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 25 [2024-11-09 23:36:43,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:36:43,712 INFO L225 Difference]: With dead ends: 131 [2024-11-09 23:36:43,712 INFO L226 Difference]: Without dead ends: 82 [2024-11-09 23:36:43,712 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 [2024-11-09 23:36:43,713 INFO L432 NwaCegarLoop]: 136 mSDtfsCounter, 0 mSDsluCounter, 372 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 508 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 [2024-11-09 23:36:43,714 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 508 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 23:36:43,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2024-11-09 23:36:43,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 82. [2024-11-09 23:36:43,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82 states, 81 states have (on average 1.3209876543209877) internal successors, (107), 81 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:36:43,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 107 transitions. [2024-11-09 23:36:43,721 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 107 transitions. Word has length 25 [2024-11-09 23:36:43,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:36:43,722 INFO L471 AbstractCegarLoop]: Abstraction has 82 states and 107 transitions. [2024-11-09 23:36:43,722 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.0) internal successors, (25), 5 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:36:43,722 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 107 transitions. [2024-11-09 23:36:43,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-11-09 23:36:43,725 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:36:43,725 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] [2024-11-09 23:36:43,726 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-09 23:36:43,726 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:36:43,726 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:36:43,727 INFO L85 PathProgramCache]: Analyzing trace with hash -612718475, now seen corresponding path program 1 times [2024-11-09 23:36:43,727 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:36:43,728 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [770157246] [2024-11-09 23:36:43,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:36:43,728 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:36:43,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:36:44,001 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 23:36:44,001 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:36:44,001 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [770157246] [2024-11-09 23:36:44,002 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [770157246] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:36:44,002 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:36:44,002 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-09 23:36:44,002 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [106233710] [2024-11-09 23:36:44,002 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:36:44,003 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 23:36:44,003 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:36:44,003 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 23:36:44,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-09 23:36:44,004 INFO L87 Difference]: Start difference. First operand 82 states and 107 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) [2024-11-09 23:36:44,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:36:44,300 INFO L93 Difference]: Finished difference Result 532 states and 807 transitions. [2024-11-09 23:36:44,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-09 23:36:44,300 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 [2024-11-09 23:36:44,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:36:44,306 INFO L225 Difference]: With dead ends: 532 [2024-11-09 23:36:44,306 INFO L226 Difference]: Without dead ends: 487 [2024-11-09 23:36:44,307 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2024-11-09 23:36:44,308 INFO L432 NwaCegarLoop]: 103 mSDtfsCounter, 731 mSDsluCounter, 1535 mSDsCounter, 0 mSdLazyCounter, 167 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 731 SdHoareTripleChecker+Valid, 1638 SdHoareTripleChecker+Invalid, 175 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 167 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 23:36:44,309 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [731 Valid, 1638 Invalid, 175 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 167 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 23:36:44,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 487 states. [2024-11-09 23:36:44,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 487 to 124. [2024-11-09 23:36:44,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124 states, 123 states have (on average 1.4065040650406504) internal successors, (173), 123 states have internal predecessors, (173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:36:44,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 173 transitions. [2024-11-09 23:36:44,328 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 173 transitions. Word has length 55 [2024-11-09 23:36:44,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:36:44,328 INFO L471 AbstractCegarLoop]: Abstraction has 124 states and 173 transitions. [2024-11-09 23:36:44,328 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) [2024-11-09 23:36:44,329 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 173 transitions. [2024-11-09 23:36:44,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-11-09 23:36:44,330 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:36:44,330 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] [2024-11-09 23:36:44,330 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-09 23:36:44,331 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:36:44,331 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:36:44,331 INFO L85 PathProgramCache]: Analyzing trace with hash 1877425591, now seen corresponding path program 1 times [2024-11-09 23:36:44,332 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:36:44,332 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1077813223] [2024-11-09 23:36:44,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:36:44,332 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:36:44,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:36:44,674 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 23:36:44,675 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:36:44,675 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1077813223] [2024-11-09 23:36:44,675 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1077813223] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:36:44,675 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:36:44,675 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-09 23:36:44,675 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [857431693] [2024-11-09 23:36:44,675 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:36:44,676 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 23:36:44,676 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:36:44,676 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 23:36:44,677 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-09 23:36:44,677 INFO L87 Difference]: Start difference. First operand 124 states and 173 transitions. Second operand has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 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) [2024-11-09 23:36:44,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:36:44,865 INFO L93 Difference]: Finished difference Result 214 states and 311 transitions. [2024-11-09 23:36:44,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-09 23:36:44,865 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 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 [2024-11-09 23:36:44,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:36:44,866 INFO L225 Difference]: With dead ends: 214 [2024-11-09 23:36:44,867 INFO L226 Difference]: Without dead ends: 127 [2024-11-09 23:36:44,867 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 [2024-11-09 23:36:44,868 INFO L432 NwaCegarLoop]: 100 mSDtfsCounter, 120 mSDsluCounter, 268 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 368 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 23:36:44,869 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [120 Valid, 368 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 23:36:44,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2024-11-09 23:36:44,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 124. [2024-11-09 23:36:44,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124 states, 123 states have (on average 1.3983739837398375) internal successors, (172), 123 states have internal predecessors, (172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:36:44,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 172 transitions. [2024-11-09 23:36:44,887 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 172 transitions. Word has length 57 [2024-11-09 23:36:44,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:36:44,888 INFO L471 AbstractCegarLoop]: Abstraction has 124 states and 172 transitions. [2024-11-09 23:36:44,888 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 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) [2024-11-09 23:36:44,888 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 172 transitions. [2024-11-09 23:36:44,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-11-09 23:36:44,889 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:36:44,889 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:36:44,889 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-09 23:36:44,890 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:36:44,890 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:36:44,893 INFO L85 PathProgramCache]: Analyzing trace with hash -205529619, now seen corresponding path program 1 times [2024-11-09 23:36:44,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:36:44,894 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1471171967] [2024-11-09 23:36:44,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:36:44,894 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:36:44,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:36:45,052 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 23:36:45,053 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:36:45,053 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1471171967] [2024-11-09 23:36:45,053 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1471171967] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:36:45,054 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:36:45,054 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 23:36:45,055 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [706051122] [2024-11-09 23:36:45,055 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:36:45,055 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 23:36:45,056 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:36:45,056 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 23:36:45,057 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 23:36:45,057 INFO L87 Difference]: Start difference. First operand 124 states and 172 transitions. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:36:45,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:36:45,079 INFO L93 Difference]: Finished difference Result 286 states and 422 transitions. [2024-11-09 23:36:45,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 23:36:45,079 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 58 [2024-11-09 23:36:45,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:36:45,081 INFO L225 Difference]: With dead ends: 286 [2024-11-09 23:36:45,082 INFO L226 Difference]: Without dead ends: 199 [2024-11-09 23:36:45,083 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 23:36:45,085 INFO L432 NwaCegarLoop]: 113 mSDtfsCounter, 45 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 178 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 [2024-11-09 23:36:45,088 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 178 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 23:36:45,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 199 states. [2024-11-09 23:36:45,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 199 to 196. [2024-11-09 23:36:45,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 196 states, 195 states have (on average 1.4461538461538461) internal successors, (282), 195 states have internal predecessors, (282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:36:45,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 282 transitions. [2024-11-09 23:36:45,105 INFO L78 Accepts]: Start accepts. Automaton has 196 states and 282 transitions. Word has length 58 [2024-11-09 23:36:45,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:36:45,107 INFO L471 AbstractCegarLoop]: Abstraction has 196 states and 282 transitions. [2024-11-09 23:36:45,107 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:36:45,107 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 282 transitions. [2024-11-09 23:36:45,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-11-09 23:36:45,109 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:36:45,109 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:36:45,109 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-09 23:36:45,110 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:36:45,110 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:36:45,110 INFO L85 PathProgramCache]: Analyzing trace with hash -1353463143, now seen corresponding path program 1 times [2024-11-09 23:36:45,110 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:36:45,111 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [235113868] [2024-11-09 23:36:45,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:36:45,111 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:36:45,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:36:45,192 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 23:36:45,193 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:36:45,193 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [235113868] [2024-11-09 23:36:45,193 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [235113868] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:36:45,193 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:36:45,193 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 23:36:45,193 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1316851941] [2024-11-09 23:36:45,194 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:36:45,194 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 23:36:45,194 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:36:45,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 23:36:45,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 23:36:45,195 INFO L87 Difference]: Start difference. First operand 196 states and 282 transitions. Second operand has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:36:45,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:36:45,211 INFO L93 Difference]: Finished difference Result 365 states and 542 transitions. [2024-11-09 23:36:45,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 23:36:45,211 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 59 [2024-11-09 23:36:45,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:36:45,213 INFO L225 Difference]: With dead ends: 365 [2024-11-09 23:36:45,213 INFO L226 Difference]: Without dead ends: 278 [2024-11-09 23:36:45,214 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 23:36:45,216 INFO L432 NwaCegarLoop]: 161 mSDtfsCounter, 59 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 232 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 [2024-11-09 23:36:45,216 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 232 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 23:36:45,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278 states. [2024-11-09 23:36:45,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278 to 275. [2024-11-09 23:36:45,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 275 states, 274 states have (on average 1.467153284671533) internal successors, (402), 274 states have internal predecessors, (402), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:36:45,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 275 states to 275 states and 402 transitions. [2024-11-09 23:36:45,237 INFO L78 Accepts]: Start accepts. Automaton has 275 states and 402 transitions. Word has length 59 [2024-11-09 23:36:45,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:36:45,237 INFO L471 AbstractCegarLoop]: Abstraction has 275 states and 402 transitions. [2024-11-09 23:36:45,238 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:36:45,238 INFO L276 IsEmpty]: Start isEmpty. Operand 275 states and 402 transitions. [2024-11-09 23:36:45,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-11-09 23:36:45,239 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:36:45,239 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:36:45,239 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-09 23:36:45,240 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:36:45,240 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:36:45,240 INFO L85 PathProgramCache]: Analyzing trace with hash -1635537447, now seen corresponding path program 1 times [2024-11-09 23:36:45,240 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:36:45,241 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [385166703] [2024-11-09 23:36:45,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:36:45,241 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:36:45,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:36:45,304 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 23:36:45,305 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:36:45,305 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [385166703] [2024-11-09 23:36:45,305 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [385166703] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:36:45,305 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:36:45,305 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 23:36:45,305 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1888171946] [2024-11-09 23:36:45,305 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:36:45,306 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 23:36:45,306 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:36:45,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 23:36:45,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 23:36:45,306 INFO L87 Difference]: Start difference. First operand 275 states and 402 transitions. Second operand has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:36:45,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:36:45,328 INFO L93 Difference]: Finished difference Result 721 states and 1084 transitions. [2024-11-09 23:36:45,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 23:36:45,329 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 59 [2024-11-09 23:36:45,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:36:45,331 INFO L225 Difference]: With dead ends: 721 [2024-11-09 23:36:45,331 INFO L226 Difference]: Without dead ends: 486 [2024-11-09 23:36:45,332 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 23:36:45,333 INFO L432 NwaCegarLoop]: 163 mSDtfsCounter, 57 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 238 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 [2024-11-09 23:36:45,333 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 238 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 23:36:45,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 486 states. [2024-11-09 23:36:45,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 486 to 483. [2024-11-09 23:36:45,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 483 states, 482 states have (on average 1.4813278008298756) internal successors, (714), 482 states have internal predecessors, (714), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:36:45,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 483 states to 483 states and 714 transitions. [2024-11-09 23:36:45,351 INFO L78 Accepts]: Start accepts. Automaton has 483 states and 714 transitions. Word has length 59 [2024-11-09 23:36:45,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:36:45,351 INFO L471 AbstractCegarLoop]: Abstraction has 483 states and 714 transitions. [2024-11-09 23:36:45,352 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:36:45,352 INFO L276 IsEmpty]: Start isEmpty. Operand 483 states and 714 transitions. [2024-11-09 23:36:45,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-11-09 23:36:45,353 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:36:45,353 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:36:45,353 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-09 23:36:45,353 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:36:45,354 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:36:45,354 INFO L85 PathProgramCache]: Analyzing trace with hash 1658020121, now seen corresponding path program 1 times [2024-11-09 23:36:45,354 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:36:45,354 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1114508991] [2024-11-09 23:36:45,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:36:45,354 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:36:45,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:36:45,413 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 23:36:45,414 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:36:45,414 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1114508991] [2024-11-09 23:36:45,414 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1114508991] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:36:45,414 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:36:45,414 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 23:36:45,414 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [698446704] [2024-11-09 23:36:45,414 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:36:45,415 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 23:36:45,415 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:36:45,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 23:36:45,415 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 23:36:45,415 INFO L87 Difference]: Start difference. First operand 483 states and 714 transitions. Second operand has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:36:45,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:36:45,446 INFO L93 Difference]: Finished difference Result 1321 states and 1978 transitions. [2024-11-09 23:36:45,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 23:36:45,447 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 59 [2024-11-09 23:36:45,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:36:45,451 INFO L225 Difference]: With dead ends: 1321 [2024-11-09 23:36:45,451 INFO L226 Difference]: Without dead ends: 878 [2024-11-09 23:36:45,452 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 23:36:45,453 INFO L432 NwaCegarLoop]: 161 mSDtfsCounter, 55 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 240 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 [2024-11-09 23:36:45,454 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 240 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 23:36:45,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 878 states. [2024-11-09 23:36:45,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 878 to 875. [2024-11-09 23:36:45,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 875 states, 874 states have (on average 1.4759725400457666) internal successors, (1290), 874 states have internal predecessors, (1290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:36:45,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 875 states to 875 states and 1290 transitions. [2024-11-09 23:36:45,516 INFO L78 Accepts]: Start accepts. Automaton has 875 states and 1290 transitions. Word has length 59 [2024-11-09 23:36:45,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:36:45,517 INFO L471 AbstractCegarLoop]: Abstraction has 875 states and 1290 transitions. [2024-11-09 23:36:45,517 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:36:45,517 INFO L276 IsEmpty]: Start isEmpty. Operand 875 states and 1290 transitions. [2024-11-09 23:36:45,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-11-09 23:36:45,518 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:36:45,518 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:36:45,518 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-09 23:36:45,519 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:36:45,519 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:36:45,519 INFO L85 PathProgramCache]: Analyzing trace with hash 1643570265, now seen corresponding path program 1 times [2024-11-09 23:36:45,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:36:45,520 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1384484228] [2024-11-09 23:36:45,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:36:45,520 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:36:45,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:36:45,595 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 23:36:45,595 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:36:45,595 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1384484228] [2024-11-09 23:36:45,595 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1384484228] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:36:45,595 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:36:45,595 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 23:36:45,595 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1215194746] [2024-11-09 23:36:45,595 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:36:45,596 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 23:36:45,596 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:36:45,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 23:36:45,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 23:36:45,597 INFO L87 Difference]: Start difference. First operand 875 states and 1290 transitions. Second operand has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:36:45,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:36:45,640 INFO L93 Difference]: Finished difference Result 2449 states and 3622 transitions. [2024-11-09 23:36:45,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 23:36:45,641 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 59 [2024-11-09 23:36:45,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:36:45,647 INFO L225 Difference]: With dead ends: 2449 [2024-11-09 23:36:45,647 INFO L226 Difference]: Without dead ends: 1614 [2024-11-09 23:36:45,648 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 23:36:45,649 INFO L432 NwaCegarLoop]: 159 mSDtfsCounter, 53 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 242 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 [2024-11-09 23:36:45,649 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 242 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 23:36:45,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1614 states. [2024-11-09 23:36:45,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1614 to 1611. [2024-11-09 23:36:45,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1611 states, 1610 states have (on average 1.457142857142857) internal successors, (2346), 1610 states have internal predecessors, (2346), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:36:45,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1611 states to 1611 states and 2346 transitions. [2024-11-09 23:36:45,696 INFO L78 Accepts]: Start accepts. Automaton has 1611 states and 2346 transitions. Word has length 59 [2024-11-09 23:36:45,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:36:45,696 INFO L471 AbstractCegarLoop]: Abstraction has 1611 states and 2346 transitions. [2024-11-09 23:36:45,696 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:36:45,696 INFO L276 IsEmpty]: Start isEmpty. Operand 1611 states and 2346 transitions. [2024-11-09 23:36:45,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-11-09 23:36:45,697 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:36:45,697 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:36:45,697 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-09 23:36:45,697 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:36:45,698 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:36:45,698 INFO L85 PathProgramCache]: Analyzing trace with hash -559794279, now seen corresponding path program 1 times [2024-11-09 23:36:45,698 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:36:45,698 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1121109472] [2024-11-09 23:36:45,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:36:45,698 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:36:45,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:36:45,759 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 23:36:45,760 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:36:45,760 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1121109472] [2024-11-09 23:36:45,760 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1121109472] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:36:45,760 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:36:45,760 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 23:36:45,760 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1145635120] [2024-11-09 23:36:45,760 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:36:45,760 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 23:36:45,761 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:36:45,761 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 23:36:45,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 23:36:45,761 INFO L87 Difference]: Start difference. First operand 1611 states and 2346 transitions. Second operand has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:36:45,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:36:45,821 INFO L93 Difference]: Finished difference Result 4561 states and 6622 transitions. [2024-11-09 23:36:45,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 23:36:45,821 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 59 [2024-11-09 23:36:45,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:36:45,831 INFO L225 Difference]: With dead ends: 4561 [2024-11-09 23:36:45,831 INFO L226 Difference]: Without dead ends: 2990 [2024-11-09 23:36:45,833 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 23:36:45,834 INFO L432 NwaCegarLoop]: 157 mSDtfsCounter, 51 mSDsluCounter, 87 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 244 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 [2024-11-09 23:36:45,835 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 244 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 23:36:45,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2990 states. [2024-11-09 23:36:45,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2990 to 2987. [2024-11-09 23:36:45,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2987 states, 2986 states have (on average 1.4286671131949096) internal successors, (4266), 2986 states have internal predecessors, (4266), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:36:45,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2987 states to 2987 states and 4266 transitions. [2024-11-09 23:36:45,969 INFO L78 Accepts]: Start accepts. Automaton has 2987 states and 4266 transitions. Word has length 59 [2024-11-09 23:36:45,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:36:45,969 INFO L471 AbstractCegarLoop]: Abstraction has 2987 states and 4266 transitions. [2024-11-09 23:36:45,970 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:36:45,970 INFO L276 IsEmpty]: Start isEmpty. Operand 2987 states and 4266 transitions. [2024-11-09 23:36:45,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-11-09 23:36:45,970 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:36:45,971 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:36:45,971 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-09 23:36:45,971 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:36:45,972 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:36:45,972 INFO L85 PathProgramCache]: Analyzing trace with hash -1084071334, now seen corresponding path program 1 times [2024-11-09 23:36:45,972 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:36:45,972 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1863098062] [2024-11-09 23:36:45,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:36:45,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:36:46,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:36:46,252 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 23:36:46,252 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:36:46,252 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1863098062] [2024-11-09 23:36:46,252 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1863098062] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:36:46,252 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:36:46,252 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-09 23:36:46,252 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [388186272] [2024-11-09 23:36:46,252 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:36:46,253 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-09 23:36:46,253 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:36:46,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-09 23:36:46,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-09 23:36:46,254 INFO L87 Difference]: Start difference. First operand 2987 states and 4266 transitions. Second operand has 8 states, 8 states have (on average 7.375) internal successors, (59), 8 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:36:46,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:36:46,334 INFO L93 Difference]: Finished difference Result 3182 states and 4524 transitions. [2024-11-09 23:36:46,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-09 23:36:46,335 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.375) internal successors, (59), 8 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 59 [2024-11-09 23:36:46,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:36:46,346 INFO L225 Difference]: With dead ends: 3182 [2024-11-09 23:36:46,346 INFO L226 Difference]: Without dead ends: 3179 [2024-11-09 23:36:46,349 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 [2024-11-09 23:36:46,350 INFO L432 NwaCegarLoop]: 101 mSDtfsCounter, 0 mSDsluCounter, 593 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 694 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 [2024-11-09 23:36:46,350 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 694 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 23:36:46,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3179 states. [2024-11-09 23:36:46,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3179 to 3179. [2024-11-09 23:36:46,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3179 states, 3178 states have (on average 1.3977344241661422) internal successors, (4442), 3178 states have internal predecessors, (4442), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:36:46,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3179 states to 3179 states and 4442 transitions. [2024-11-09 23:36:46,436 INFO L78 Accepts]: Start accepts. Automaton has 3179 states and 4442 transitions. Word has length 59 [2024-11-09 23:36:46,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:36:46,437 INFO L471 AbstractCegarLoop]: Abstraction has 3179 states and 4442 transitions. [2024-11-09 23:36:46,437 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.375) internal successors, (59), 8 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:36:46,437 INFO L276 IsEmpty]: Start isEmpty. Operand 3179 states and 4442 transitions. [2024-11-09 23:36:46,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-11-09 23:36:46,439 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:36:46,439 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, 1, 1, 1] [2024-11-09 23:36:46,439 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-09 23:36:46,439 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:36:46,440 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:36:46,440 INFO L85 PathProgramCache]: Analyzing trace with hash -826938742, now seen corresponding path program 1 times [2024-11-09 23:36:46,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:36:46,440 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1290747344] [2024-11-09 23:36:46,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:36:46,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:36:46,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:36:46,621 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-09 23:36:46,621 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:36:46,621 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1290747344] [2024-11-09 23:36:46,621 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1290747344] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:36:46,621 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:36:46,622 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-09 23:36:46,622 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1946309712] [2024-11-09 23:36:46,622 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:36:46,622 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 23:36:46,622 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:36:46,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 23:36:46,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-09 23:36:46,623 INFO L87 Difference]: Start difference. First operand 3179 states and 4442 transitions. Second operand has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 7 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) [2024-11-09 23:36:47,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:36:47,042 INFO L93 Difference]: Finished difference Result 18669 states and 26134 transitions. [2024-11-09 23:36:47,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-09 23:36:47,043 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 7 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 80 [2024-11-09 23:36:47,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:36:47,108 INFO L225 Difference]: With dead ends: 18669 [2024-11-09 23:36:47,108 INFO L226 Difference]: Without dead ends: 16426 [2024-11-09 23:36:47,118 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 [2024-11-09 23:36:47,119 INFO L432 NwaCegarLoop]: 175 mSDtfsCounter, 568 mSDsluCounter, 707 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 568 SdHoareTripleChecker+Valid, 882 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 23:36:47,119 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [568 Valid, 882 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 23:36:47,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16426 states. [2024-11-09 23:36:47,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16426 to 5883. [2024-11-09 23:36:47,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5883 states, 5882 states have (on average 1.3917035022101325) internal successors, (8186), 5882 states have internal predecessors, (8186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:36:47,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5883 states to 5883 states and 8186 transitions. [2024-11-09 23:36:47,365 INFO L78 Accepts]: Start accepts. Automaton has 5883 states and 8186 transitions. Word has length 80 [2024-11-09 23:36:47,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:36:47,365 INFO L471 AbstractCegarLoop]: Abstraction has 5883 states and 8186 transitions. [2024-11-09 23:36:47,366 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 7 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) [2024-11-09 23:36:47,366 INFO L276 IsEmpty]: Start isEmpty. Operand 5883 states and 8186 transitions. [2024-11-09 23:36:47,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-11-09 23:36:47,370 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:36:47,370 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, 1, 1, 1] [2024-11-09 23:36:47,371 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-09 23:36:47,371 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:36:47,371 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:36:47,371 INFO L85 PathProgramCache]: Analyzing trace with hash -1109013046, now seen corresponding path program 1 times [2024-11-09 23:36:47,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:36:47,372 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [643757300] [2024-11-09 23:36:47,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:36:47,372 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:36:47,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:36:47,546 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-09 23:36:47,546 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:36:47,547 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [643757300] [2024-11-09 23:36:47,547 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [643757300] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:36:47,547 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:36:47,547 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-09 23:36:47,547 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [784870957] [2024-11-09 23:36:47,547 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:36:47,548 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 23:36:47,548 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:36:47,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 23:36:47,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-09 23:36:47,549 INFO L87 Difference]: Start difference. First operand 5883 states and 8186 transitions. Second operand has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 7 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:36:48,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:36:48,032 INFO L93 Difference]: Finished difference Result 21805 states and 30502 transitions. [2024-11-09 23:36:48,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-09 23:36:48,033 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 7 states have internal predecessors, (76), 0 states have call successors, (0), 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 80 [2024-11-09 23:36:48,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:36:48,066 INFO L225 Difference]: With dead ends: 21805 [2024-11-09 23:36:48,067 INFO L226 Difference]: Without dead ends: 18666 [2024-11-09 23:36:48,075 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 [2024-11-09 23:36:48,075 INFO L432 NwaCegarLoop]: 176 mSDtfsCounter, 572 mSDsluCounter, 647 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 572 SdHoareTripleChecker+Valid, 823 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 23:36:48,076 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [572 Valid, 823 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 23:36:48,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18666 states. [2024-11-09 23:36:48,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18666 to 10139. [2024-11-09 23:36:48,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10139 states, 10138 states have (on average 1.3882422568553956) internal successors, (14074), 10138 states have internal predecessors, (14074), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:36:48,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10139 states to 10139 states and 14074 transitions. [2024-11-09 23:36:48,478 INFO L78 Accepts]: Start accepts. Automaton has 10139 states and 14074 transitions. Word has length 80 [2024-11-09 23:36:48,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:36:48,478 INFO L471 AbstractCegarLoop]: Abstraction has 10139 states and 14074 transitions. [2024-11-09 23:36:48,479 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 7 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:36:48,479 INFO L276 IsEmpty]: Start isEmpty. Operand 10139 states and 14074 transitions. [2024-11-09 23:36:48,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-11-09 23:36:48,481 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:36:48,481 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, 1, 1, 1] [2024-11-09 23:36:48,481 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-09 23:36:48,482 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:36:48,482 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:36:48,482 INFO L85 PathProgramCache]: Analyzing trace with hash -2110422774, now seen corresponding path program 1 times [2024-11-09 23:36:48,483 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:36:48,483 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1071539336] [2024-11-09 23:36:48,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:36:48,483 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:36:48,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:36:48,641 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-09 23:36:48,641 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:36:48,641 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1071539336] [2024-11-09 23:36:48,641 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1071539336] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:36:48,641 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:36:48,641 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-09 23:36:48,642 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [728664955] [2024-11-09 23:36:48,642 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:36:48,642 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 23:36:48,642 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:36:48,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 23:36:48,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-09 23:36:48,643 INFO L87 Difference]: Start difference. First operand 10139 states and 14074 transitions. Second operand has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 7 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:36:49,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:36:49,121 INFO L93 Difference]: Finished difference Result 24941 states and 34854 transitions. [2024-11-09 23:36:49,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-09 23:36:49,122 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 7 states have internal predecessors, (74), 0 states have call successors, (0), 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 80 [2024-11-09 23:36:49,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:36:49,158 INFO L225 Difference]: With dead ends: 24941 [2024-11-09 23:36:49,159 INFO L226 Difference]: Without dead ends: 21802 [2024-11-09 23:36:49,167 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 [2024-11-09 23:36:49,168 INFO L432 NwaCegarLoop]: 173 mSDtfsCounter, 596 mSDsluCounter, 615 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 596 SdHoareTripleChecker+Valid, 788 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 23:36:49,168 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [596 Valid, 788 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 23:36:49,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21802 states. [2024-11-09 23:36:49,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21802 to 13275. [2024-11-09 23:36:49,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13275 states, 13274 states have (on average 1.3881271658882024) internal successors, (18426), 13274 states have internal predecessors, (18426), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:36:49,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13275 states to 13275 states and 18426 transitions. [2024-11-09 23:36:49,600 INFO L78 Accepts]: Start accepts. Automaton has 13275 states and 18426 transitions. Word has length 80 [2024-11-09 23:36:49,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:36:49,600 INFO L471 AbstractCegarLoop]: Abstraction has 13275 states and 18426 transitions. [2024-11-09 23:36:49,601 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 7 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:36:49,601 INFO L276 IsEmpty]: Start isEmpty. Operand 13275 states and 18426 transitions. [2024-11-09 23:36:49,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-11-09 23:36:49,604 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:36:49,604 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, 1, 1, 1] [2024-11-09 23:36:49,604 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-09 23:36:49,604 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:36:49,605 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:36:49,605 INFO L85 PathProgramCache]: Analyzing trace with hash -2124872630, now seen corresponding path program 1 times [2024-11-09 23:36:49,605 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:36:49,605 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [620897676] [2024-11-09 23:36:49,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:36:49,606 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:36:49,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:36:49,837 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-09 23:36:49,837 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:36:49,837 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [620897676] [2024-11-09 23:36:49,837 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [620897676] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:36:49,838 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:36:49,838 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-09 23:36:49,838 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1278972365] [2024-11-09 23:36:49,838 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:36:49,838 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 23:36:49,839 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:36:49,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 23:36:49,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-09 23:36:49,840 INFO L87 Difference]: Start difference. First operand 13275 states and 18426 transitions. Second operand has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 7 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:36:50,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:36:50,511 INFO L93 Difference]: Finished difference Result 28077 states and 39206 transitions. [2024-11-09 23:36:50,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-09 23:36:50,511 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 7 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2024-11-09 23:36:50,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:36:50,555 INFO L225 Difference]: With dead ends: 28077 [2024-11-09 23:36:50,555 INFO L226 Difference]: Without dead ends: 24938 [2024-11-09 23:36:50,565 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 [2024-11-09 23:36:50,566 INFO L432 NwaCegarLoop]: 170 mSDtfsCounter, 636 mSDsluCounter, 612 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 636 SdHoareTripleChecker+Valid, 782 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 23:36:50,566 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [636 Valid, 782 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 23:36:50,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24938 states. [2024-11-09 23:36:50,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24938 to 16411. [2024-11-09 23:36:50,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16411 states, 16410 states have (on average 1.3880560633759902) internal successors, (22778), 16410 states have internal predecessors, (22778), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:36:51,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16411 states to 16411 states and 22778 transitions. [2024-11-09 23:36:51,064 INFO L78 Accepts]: Start accepts. Automaton has 16411 states and 22778 transitions. Word has length 80 [2024-11-09 23:36:51,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:36:51,065 INFO L471 AbstractCegarLoop]: Abstraction has 16411 states and 22778 transitions. [2024-11-09 23:36:51,065 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 7 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:36:51,065 INFO L276 IsEmpty]: Start isEmpty. Operand 16411 states and 22778 transitions. [2024-11-09 23:36:51,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-11-09 23:36:51,068 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:36:51,068 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, 1, 1, 1] [2024-11-09 23:36:51,068 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-09 23:36:51,068 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:36:51,069 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:36:51,069 INFO L85 PathProgramCache]: Analyzing trace with hash -33269878, now seen corresponding path program 1 times [2024-11-09 23:36:51,069 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:36:51,069 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1405171522] [2024-11-09 23:36:51,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:36:51,069 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:36:51,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:36:51,218 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-09 23:36:51,218 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:36:51,219 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1405171522] [2024-11-09 23:36:51,219 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1405171522] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:36:51,219 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:36:51,219 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-09 23:36:51,219 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1486800268] [2024-11-09 23:36:51,219 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:36:51,220 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 23:36:51,220 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:36:51,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 23:36:51,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-09 23:36:51,223 INFO L87 Difference]: Start difference. First operand 16411 states and 22778 transitions. Second operand has 7 states, 7 states have (on average 10.0) internal successors, (70), 7 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:36:51,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:36:51,881 INFO L93 Difference]: Finished difference Result 31213 states and 43558 transitions. [2024-11-09 23:36:51,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-09 23:36:51,881 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.0) internal successors, (70), 7 states have internal predecessors, (70), 0 states have call successors, (0), 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 80 [2024-11-09 23:36:51,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:36:51,931 INFO L225 Difference]: With dead ends: 31213 [2024-11-09 23:36:51,932 INFO L226 Difference]: Without dead ends: 28074 [2024-11-09 23:36:51,940 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 [2024-11-09 23:36:51,941 INFO L432 NwaCegarLoop]: 171 mSDtfsCounter, 591 mSDsluCounter, 682 mSDsCounter, 0 mSdLazyCounter, 141 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 591 SdHoareTripleChecker+Valid, 853 SdHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 141 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 23:36:51,941 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [591 Valid, 853 Invalid, 145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 141 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 23:36:51,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28074 states. [2024-11-09 23:36:52,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28074 to 19547. [2024-11-09 23:36:52,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19547 states, 19546 states have (on average 1.3880077765271668) internal successors, (27130), 19546 states have internal predecessors, (27130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:36:52,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19547 states to 19547 states and 27130 transitions. [2024-11-09 23:36:52,604 INFO L78 Accepts]: Start accepts. Automaton has 19547 states and 27130 transitions. Word has length 80 [2024-11-09 23:36:52,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:36:52,604 INFO L471 AbstractCegarLoop]: Abstraction has 19547 states and 27130 transitions. [2024-11-09 23:36:52,604 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.0) internal successors, (70), 7 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:36:52,605 INFO L276 IsEmpty]: Start isEmpty. Operand 19547 states and 27130 transitions. [2024-11-09 23:36:52,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-11-09 23:36:52,609 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:36:52,609 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:36:52,609 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-09 23:36:52,610 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:36:52,610 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:36:52,610 INFO L85 PathProgramCache]: Analyzing trace with hash -2124788084, now seen corresponding path program 1 times [2024-11-09 23:36:52,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:36:52,611 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2101459289] [2024-11-09 23:36:52,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:36:52,611 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:36:52,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:36:52,724 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 23:36:52,724 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:36:52,725 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2101459289] [2024-11-09 23:36:52,725 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2101459289] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:36:52,725 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:36:52,725 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 23:36:52,725 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [508533656] [2024-11-09 23:36:52,726 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:36:52,726 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 23:36:52,726 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:36:52,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 23:36:52,727 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 23:36:52,727 INFO L87 Difference]: Start difference. First operand 19547 states and 27130 transitions. Second operand has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:36:53,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:36:53,294 INFO L93 Difference]: Finished difference Result 39057 states and 54222 transitions. [2024-11-09 23:36:53,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 23:36:53,295 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 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 82 [2024-11-09 23:36:53,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:36:53,332 INFO L225 Difference]: With dead ends: 39057 [2024-11-09 23:36:53,332 INFO L226 Difference]: Without dead ends: 19550 [2024-11-09 23:36:53,345 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 23:36:53,346 INFO L432 NwaCegarLoop]: 143 mSDtfsCounter, 44 mSDsluCounter, 95 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 238 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 [2024-11-09 23:36:53,346 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 238 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 23:36:53,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19550 states. [2024-11-09 23:36:53,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19550 to 19547. [2024-11-09 23:36:53,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19547 states, 19546 states have (on average 1.3728640130973089) internal successors, (26834), 19546 states have internal predecessors, (26834), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:36:53,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19547 states to 19547 states and 26834 transitions. [2024-11-09 23:36:53,769 INFO L78 Accepts]: Start accepts. Automaton has 19547 states and 26834 transitions. Word has length 82 [2024-11-09 23:36:53,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:36:53,769 INFO L471 AbstractCegarLoop]: Abstraction has 19547 states and 26834 transitions. [2024-11-09 23:36:53,769 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:36:53,770 INFO L276 IsEmpty]: Start isEmpty. Operand 19547 states and 26834 transitions. [2024-11-09 23:36:53,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-11-09 23:36:53,773 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:36:53,774 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:36:53,774 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-09 23:36:53,774 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:36:53,774 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:36:53,775 INFO L85 PathProgramCache]: Analyzing trace with hash 1679712716, now seen corresponding path program 1 times [2024-11-09 23:36:53,775 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:36:53,775 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [698309485] [2024-11-09 23:36:53,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:36:53,775 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:36:53,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:36:53,906 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 23:36:53,907 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:36:53,907 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [698309485] [2024-11-09 23:36:53,907 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [698309485] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:36:53,907 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:36:53,908 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 23:36:53,908 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [968292522] [2024-11-09 23:36:53,908 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:36:53,908 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 23:36:53,908 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:36:53,909 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 23:36:53,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 23:36:53,909 INFO L87 Difference]: Start difference. First operand 19547 states and 26834 transitions. Second operand has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:36:54,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:36:54,103 INFO L93 Difference]: Finished difference Result 26854 states and 36948 transitions. [2024-11-09 23:36:54,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 23:36:54,104 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 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 82 [2024-11-09 23:36:54,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:36:54,118 INFO L225 Difference]: With dead ends: 26854 [2024-11-09 23:36:54,118 INFO L226 Difference]: Without dead ends: 7347 [2024-11-09 23:36:54,136 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 23:36:54,137 INFO L432 NwaCegarLoop]: 141 mSDtfsCounter, 40 mSDsluCounter, 94 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 235 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 [2024-11-09 23:36:54,137 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 235 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 23:36:54,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7347 states. [2024-11-09 23:36:54,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7347 to 7337. [2024-11-09 23:36:54,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7337 states, 7336 states have (on average 1.3685932388222464) internal successors, (10040), 7336 states have internal predecessors, (10040), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:36:54,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7337 states to 7337 states and 10040 transitions. [2024-11-09 23:36:54,303 INFO L78 Accepts]: Start accepts. Automaton has 7337 states and 10040 transitions. Word has length 82 [2024-11-09 23:36:54,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:36:54,304 INFO L471 AbstractCegarLoop]: Abstraction has 7337 states and 10040 transitions. [2024-11-09 23:36:54,304 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:36:54,304 INFO L276 IsEmpty]: Start isEmpty. Operand 7337 states and 10040 transitions. [2024-11-09 23:36:54,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-09 23:36:54,306 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:36:54,306 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, 1, 1, 1, 1, 1] [2024-11-09 23:36:54,306 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-09 23:36:54,306 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:36:54,307 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:36:54,307 INFO L85 PathProgramCache]: Analyzing trace with hash 527818094, now seen corresponding path program 1 times [2024-11-09 23:36:54,307 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:36:54,307 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1533052071] [2024-11-09 23:36:54,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:36:54,307 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:36:54,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:36:54,487 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 23:36:54,488 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:36:54,488 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1533052071] [2024-11-09 23:36:54,488 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1533052071] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:36:54,488 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:36:54,488 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 23:36:54,488 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1956542284] [2024-11-09 23:36:54,489 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:36:54,490 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 23:36:54,490 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:36:54,490 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 23:36:54,491 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 23:36:54,491 INFO L87 Difference]: Start difference. First operand 7337 states and 10040 transitions. Second operand has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:36:54,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:36:54,560 INFO L93 Difference]: Finished difference Result 10983 states and 15036 transitions. [2024-11-09 23:36:54,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 23:36:54,560 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 0 states have call successors, (0), 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 84 [2024-11-09 23:36:54,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:36:54,567 INFO L225 Difference]: With dead ends: 10983 [2024-11-09 23:36:54,567 INFO L226 Difference]: Without dead ends: 3700 [2024-11-09 23:36:54,573 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 23:36:54,575 INFO L432 NwaCegarLoop]: 135 mSDtfsCounter, 38 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 214 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 [2024-11-09 23:36:54,575 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 214 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 23:36:54,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3700 states. [2024-11-09 23:36:54,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3700 to 3697. [2024-11-09 23:36:54,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3697 states, 3696 states have (on average 1.3517316017316017) internal successors, (4996), 3696 states have internal predecessors, (4996), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:36:54,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3697 states to 3697 states and 4996 transitions. [2024-11-09 23:36:54,652 INFO L78 Accepts]: Start accepts. Automaton has 3697 states and 4996 transitions. Word has length 84 [2024-11-09 23:36:54,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:36:54,652 INFO L471 AbstractCegarLoop]: Abstraction has 3697 states and 4996 transitions. [2024-11-09 23:36:54,653 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:36:54,653 INFO L276 IsEmpty]: Start isEmpty. Operand 3697 states and 4996 transitions. [2024-11-09 23:36:54,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-11-09 23:36:54,654 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:36:54,654 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, 1, 1, 1, 1, 1] [2024-11-09 23:36:54,655 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-09 23:36:54,655 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:36:54,656 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:36:54,656 INFO L85 PathProgramCache]: Analyzing trace with hash -1420311435, now seen corresponding path program 1 times [2024-11-09 23:36:54,656 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:36:54,656 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [427846173] [2024-11-09 23:36:54,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:36:54,657 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:36:54,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:36:54,742 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 23:36:54,742 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:36:54,742 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [427846173] [2024-11-09 23:36:54,743 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [427846173] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:36:54,743 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:36:54,743 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 23:36:54,743 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1071393295] [2024-11-09 23:36:54,743 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:36:54,743 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 23:36:54,744 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:36:54,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 23:36:54,744 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 23:36:54,744 INFO L87 Difference]: Start difference. First operand 3697 states and 4996 transitions. Second operand has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:36:54,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:36:54,787 INFO L93 Difference]: Finished difference Result 5523 states and 7470 transitions. [2024-11-09 23:36:54,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 23:36:54,788 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 86 [2024-11-09 23:36:54,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:36:54,792 INFO L225 Difference]: With dead ends: 5523 [2024-11-09 23:36:54,792 INFO L226 Difference]: Without dead ends: 1880 [2024-11-09 23:36:54,794 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 23:36:54,795 INFO L432 NwaCegarLoop]: 128 mSDtfsCounter, 35 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 199 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 [2024-11-09 23:36:54,795 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 199 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 23:36:54,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1880 states. [2024-11-09 23:36:54,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1880 to 1877. [2024-11-09 23:36:54,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1877 states, 1876 states have (on average 1.3326226012793176) internal successors, (2500), 1876 states have internal predecessors, (2500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:36:54,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1877 states to 1877 states and 2500 transitions. [2024-11-09 23:36:54,837 INFO L78 Accepts]: Start accepts. Automaton has 1877 states and 2500 transitions. Word has length 86 [2024-11-09 23:36:54,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:36:54,837 INFO L471 AbstractCegarLoop]: Abstraction has 1877 states and 2500 transitions. [2024-11-09 23:36:54,837 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:36:54,837 INFO L276 IsEmpty]: Start isEmpty. Operand 1877 states and 2500 transitions. [2024-11-09 23:36:54,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-11-09 23:36:54,838 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:36:54,839 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, 1, 1] [2024-11-09 23:36:54,839 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-09 23:36:54,839 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:36:54,839 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:36:54,839 INFO L85 PathProgramCache]: Analyzing trace with hash -1268685668, now seen corresponding path program 1 times [2024-11-09 23:36:54,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:36:54,840 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [261467757] [2024-11-09 23:36:54,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:36:54,840 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:36:54,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:36:54,922 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 23:36:54,922 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:36:54,922 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [261467757] [2024-11-09 23:36:54,923 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [261467757] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:36:54,923 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:36:54,923 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 23:36:54,923 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1528274390] [2024-11-09 23:36:54,923 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:36:54,924 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 23:36:54,924 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:36:54,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 23:36:54,924 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 23:36:54,924 INFO L87 Difference]: Start difference. First operand 1877 states and 2500 transitions. Second operand has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:36:54,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:36:54,950 INFO L93 Difference]: Finished difference Result 2793 states and 3726 transitions. [2024-11-09 23:36:54,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 23:36:54,950 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 0 states have call successors, (0), 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 [2024-11-09 23:36:54,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:36:54,953 INFO L225 Difference]: With dead ends: 2793 [2024-11-09 23:36:54,953 INFO L226 Difference]: Without dead ends: 970 [2024-11-09 23:36:54,954 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 23:36:54,954 INFO L432 NwaCegarLoop]: 121 mSDtfsCounter, 32 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 184 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 [2024-11-09 23:36:54,954 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 184 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 23:36:54,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 970 states. [2024-11-09 23:36:54,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 970 to 967. [2024-11-09 23:36:54,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 967 states, 966 states have (on average 1.3095238095238095) internal successors, (1265), 966 states have internal predecessors, (1265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:36:54,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 967 states to 967 states and 1265 transitions. [2024-11-09 23:36:54,975 INFO L78 Accepts]: Start accepts. Automaton has 967 states and 1265 transitions. Word has length 88 [2024-11-09 23:36:54,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:36:54,976 INFO L471 AbstractCegarLoop]: Abstraction has 967 states and 1265 transitions. [2024-11-09 23:36:54,976 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:36:54,976 INFO L276 IsEmpty]: Start isEmpty. Operand 967 states and 1265 transitions. [2024-11-09 23:36:54,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-09 23:36:54,977 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:36:54,977 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, 1, 1, 1, 1, 1] [2024-11-09 23:36:54,977 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-09 23:36:54,977 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:36:54,978 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:36:54,978 INFO L85 PathProgramCache]: Analyzing trace with hash 890449379, now seen corresponding path program 1 times [2024-11-09 23:36:54,978 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:36:54,978 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1822375292] [2024-11-09 23:36:54,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:36:54,978 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:36:55,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:36:55,390 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 5 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 23:36:55,390 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:36:55,391 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1822375292] [2024-11-09 23:36:55,391 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1822375292] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 23:36:55,391 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1230639294] [2024-11-09 23:36:55,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:36:55,391 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 23:36:55,391 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 23:36:55,393 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 23:36:55,394 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-09 23:36:55,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:36:55,542 INFO L255 TraceCheckSpWp]: Trace formula consists of 408 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-09 23:36:55,549 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 23:36:56,184 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 7 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 23:36:56,185 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 23:36:57,328 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 7 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 23:36:57,329 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1230639294] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 23:36:57,330 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 23:36:57,330 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 24 [2024-11-09 23:36:57,330 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1879230130] [2024-11-09 23:36:57,330 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 23:36:57,330 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-11-09 23:36:57,330 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:36:57,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-11-09 23:36:57,331 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=514, Unknown=0, NotChecked=0, Total=600 [2024-11-09 23:36:57,331 INFO L87 Difference]: Start difference. First operand 967 states and 1265 transitions. Second operand has 25 states, 25 states have (on average 9.96) internal successors, (249), 24 states have internal predecessors, (249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:36:58,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:36:58,547 INFO L93 Difference]: Finished difference Result 3842 states and 5084 transitions. [2024-11-09 23:36:58,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-11-09 23:36:58,548 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 9.96) internal successors, (249), 24 states have internal predecessors, (249), 0 states have call successors, (0), 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 90 [2024-11-09 23:36:58,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:36:58,552 INFO L225 Difference]: With dead ends: 3842 [2024-11-09 23:36:58,552 INFO L226 Difference]: Without dead ends: 2929 [2024-11-09 23:36:58,553 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 210 GetRequests, 164 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 403 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=462, Invalid=1794, Unknown=0, NotChecked=0, Total=2256 [2024-11-09 23:36:58,554 INFO L432 NwaCegarLoop]: 68 mSDtfsCounter, 1364 mSDsluCounter, 912 mSDsCounter, 0 mSdLazyCounter, 775 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1364 SdHoareTripleChecker+Valid, 980 SdHoareTripleChecker+Invalid, 802 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 775 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-09 23:36:58,554 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1364 Valid, 980 Invalid, 802 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 775 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-09 23:36:58,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2929 states. [2024-11-09 23:36:58,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2929 to 2904. [2024-11-09 23:36:58,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2904 states, 2903 states have (on average 1.3000344471236651) internal successors, (3774), 2903 states have internal predecessors, (3774), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:36:58,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2904 states to 2904 states and 3774 transitions. [2024-11-09 23:36:58,620 INFO L78 Accepts]: Start accepts. Automaton has 2904 states and 3774 transitions. Word has length 90 [2024-11-09 23:36:58,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:36:58,621 INFO L471 AbstractCegarLoop]: Abstraction has 2904 states and 3774 transitions. [2024-11-09 23:36:58,621 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 9.96) internal successors, (249), 24 states have internal predecessors, (249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:36:58,621 INFO L276 IsEmpty]: Start isEmpty. Operand 2904 states and 3774 transitions. [2024-11-09 23:36:58,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-09 23:36:58,622 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:36:58,622 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, 1, 1, 1, 1, 1] [2024-11-09 23:36:58,641 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-09 23:36:58,826 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 [2024-11-09 23:36:58,827 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:36:58,827 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:36:58,827 INFO L85 PathProgramCache]: Analyzing trace with hash -1003278045, now seen corresponding path program 1 times [2024-11-09 23:36:58,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:36:58,827 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1586832125] [2024-11-09 23:36:58,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:36:58,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:36:58,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:36:59,190 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 13 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 23:36:59,191 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:36:59,191 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1586832125] [2024-11-09 23:36:59,191 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1586832125] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 23:36:59,191 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [291164125] [2024-11-09 23:36:59,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:36:59,191 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 23:36:59,191 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 23:36:59,193 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) [2024-11-09 23:36:59,195 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-09 23:36:59,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:36:59,321 INFO L255 TraceCheckSpWp]: Trace formula consists of 408 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-11-09 23:36:59,324 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 23:37:00,175 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 13 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 23:37:00,175 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 23:37:02,031 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 5 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 23:37:02,031 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [291164125] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 23:37:02,031 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 23:37:02,031 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 10, 12] total 28 [2024-11-09 23:37:02,032 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1367453477] [2024-11-09 23:37:02,032 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 23:37:02,032 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2024-11-09 23:37:02,032 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:37:02,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2024-11-09 23:37:02,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=114, Invalid=642, Unknown=0, NotChecked=0, Total=756 [2024-11-09 23:37:02,034 INFO L87 Difference]: Start difference. First operand 2904 states and 3774 transitions. Second operand has 28 states, 28 states have (on average 8.321428571428571) internal successors, (233), 28 states have internal predecessors, (233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:37:02,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:37:02,885 INFO L93 Difference]: Finished difference Result 8610 states and 11218 transitions. [2024-11-09 23:37:02,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-09 23:37:02,886 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 8.321428571428571) internal successors, (233), 28 states have internal predecessors, (233), 0 states have call successors, (0), 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 90 [2024-11-09 23:37:02,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:37:02,893 INFO L225 Difference]: With dead ends: 8610 [2024-11-09 23:37:02,894 INFO L226 Difference]: Without dead ends: 5760 [2024-11-09 23:37:02,897 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 202 GetRequests, 161 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 361 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=361, Invalid=1445, Unknown=0, NotChecked=0, Total=1806 [2024-11-09 23:37:02,898 INFO L432 NwaCegarLoop]: 90 mSDtfsCounter, 1048 mSDsluCounter, 709 mSDsCounter, 0 mSdLazyCounter, 524 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1048 SdHoareTripleChecker+Valid, 799 SdHoareTripleChecker+Invalid, 565 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 524 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-09 23:37:02,898 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1048 Valid, 799 Invalid, 565 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 524 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-09 23:37:02,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5760 states. [2024-11-09 23:37:03,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5760 to 5751. [2024-11-09 23:37:03,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5751 states, 5750 states have (on average 1.2961739130434782) internal successors, (7453), 5750 states have internal predecessors, (7453), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:37:03,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5751 states to 5751 states and 7453 transitions. [2024-11-09 23:37:03,099 INFO L78 Accepts]: Start accepts. Automaton has 5751 states and 7453 transitions. Word has length 90 [2024-11-09 23:37:03,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:37:03,100 INFO L471 AbstractCegarLoop]: Abstraction has 5751 states and 7453 transitions. [2024-11-09 23:37:03,100 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 8.321428571428571) internal successors, (233), 28 states have internal predecessors, (233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:37:03,100 INFO L276 IsEmpty]: Start isEmpty. Operand 5751 states and 7453 transitions. [2024-11-09 23:37:03,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-11-09 23:37:03,102 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:37:03,102 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, 1, 1, 1, 1, 1, 1] [2024-11-09 23:37:03,119 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-09 23:37:03,302 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 [2024-11-09 23:37:03,303 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:37:03,303 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:37:03,304 INFO L85 PathProgramCache]: Analyzing trace with hash 376341730, now seen corresponding path program 1 times [2024-11-09 23:37:03,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:37:03,304 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [829505343] [2024-11-09 23:37:03,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:37:03,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:37:03,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:37:03,726 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 11 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 23:37:03,726 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:37:03,726 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [829505343] [2024-11-09 23:37:03,727 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [829505343] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 23:37:03,727 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [147021081] [2024-11-09 23:37:03,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:37:03,727 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 23:37:03,727 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 23:37:03,729 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) [2024-11-09 23:37:03,730 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-09 23:37:03,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:37:03,871 INFO L255 TraceCheckSpWp]: Trace formula consists of 410 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-09 23:37:03,874 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 23:37:04,393 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 11 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 23:37:04,393 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 23:37:05,088 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 11 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 23:37:05,089 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [147021081] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 23:37:05,089 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 23:37:05,089 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 21 [2024-11-09 23:37:05,089 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1284772257] [2024-11-09 23:37:05,089 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 23:37:05,090 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-09 23:37:05,090 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:37:05,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-09 23:37:05,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=371, Unknown=0, NotChecked=0, Total=462 [2024-11-09 23:37:05,091 INFO L87 Difference]: Start difference. First operand 5751 states and 7453 transitions. Second operand has 22 states, 22 states have (on average 8.954545454545455) internal successors, (197), 21 states have internal predecessors, (197), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:37:05,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:37:05,648 INFO L93 Difference]: Finished difference Result 17616 states and 22955 transitions. [2024-11-09 23:37:05,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-09 23:37:05,648 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 8.954545454545455) internal successors, (197), 21 states have internal predecessors, (197), 0 states have call successors, (0), 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 91 [2024-11-09 23:37:05,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:37:05,658 INFO L225 Difference]: With dead ends: 17616 [2024-11-09 23:37:05,658 INFO L226 Difference]: Without dead ends: 11919 [2024-11-09 23:37:05,664 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 200 GetRequests, 169 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 180 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=258, Invalid=798, Unknown=0, NotChecked=0, Total=1056 [2024-11-09 23:37:05,665 INFO L432 NwaCegarLoop]: 102 mSDtfsCounter, 683 mSDsluCounter, 527 mSDsCounter, 0 mSdLazyCounter, 477 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 683 SdHoareTripleChecker+Valid, 629 SdHoareTripleChecker+Invalid, 488 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 477 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 23:37:05,665 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [683 Valid, 629 Invalid, 488 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 477 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 23:37:05,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11919 states. [2024-11-09 23:37:05,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11919 to 11757. [2024-11-09 23:37:05,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11757 states, 11756 states have (on average 1.2830894862198026) internal successors, (15084), 11756 states have internal predecessors, (15084), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:37:05,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11757 states to 11757 states and 15084 transitions. [2024-11-09 23:37:05,935 INFO L78 Accepts]: Start accepts. Automaton has 11757 states and 15084 transitions. Word has length 91 [2024-11-09 23:37:05,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:37:05,936 INFO L471 AbstractCegarLoop]: Abstraction has 11757 states and 15084 transitions. [2024-11-09 23:37:05,936 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 8.954545454545455) internal successors, (197), 21 states have internal predecessors, (197), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:37:05,936 INFO L276 IsEmpty]: Start isEmpty. Operand 11757 states and 15084 transitions. [2024-11-09 23:37:05,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-09 23:37:05,938 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:37:05,938 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, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:37:05,959 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-09 23:37:06,139 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 [2024-11-09 23:37:06,139 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:37:06,140 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:37:06,140 INFO L85 PathProgramCache]: Analyzing trace with hash -470058950, now seen corresponding path program 1 times [2024-11-09 23:37:06,140 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:37:06,140 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1363468743] [2024-11-09 23:37:06,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:37:06,140 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:37:06,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:37:06,474 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 9 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 23:37:06,474 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:37:06,474 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1363468743] [2024-11-09 23:37:06,475 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1363468743] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 23:37:06,475 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1235118053] [2024-11-09 23:37:06,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:37:06,475 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 23:37:06,475 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 23:37:06,477 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) [2024-11-09 23:37:06,479 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-09 23:37:06,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:37:06,608 INFO L255 TraceCheckSpWp]: Trace formula consists of 412 conjuncts, 31 conjuncts are in the unsatisfiable core [2024-11-09 23:37:06,610 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 23:37:08,096 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 11 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 23:37:08,096 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 23:37:09,815 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 9 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 23:37:09,815 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1235118053] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 23:37:09,815 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 23:37:09,815 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 14, 16] total 34 [2024-11-09 23:37:09,816 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2055342225] [2024-11-09 23:37:09,816 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 23:37:09,816 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2024-11-09 23:37:09,816 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:37:09,816 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2024-11-09 23:37:09,817 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=218, Invalid=904, Unknown=0, NotChecked=0, Total=1122 [2024-11-09 23:37:09,817 INFO L87 Difference]: Start difference. First operand 11757 states and 15084 transitions. Second operand has 34 states, 34 states have (on average 6.852941176470588) internal successors, (233), 34 states have internal predecessors, (233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:37:12,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:37:12,881 INFO L93 Difference]: Finished difference Result 59280 states and 76011 transitions. [2024-11-09 23:37:12,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2024-11-09 23:37:12,882 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 6.852941176470588) internal successors, (233), 34 states have internal predecessors, (233), 0 states have call successors, (0), 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 92 [2024-11-09 23:37:12,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:37:12,927 INFO L225 Difference]: With dead ends: 59280 [2024-11-09 23:37:12,927 INFO L226 Difference]: Without dead ends: 47577 [2024-11-09 23:37:12,940 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 235 GetRequests, 160 SyntacticMatches, 0 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1756 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=1414, Invalid=4438, Unknown=0, NotChecked=0, Total=5852 [2024-11-09 23:37:12,941 INFO L432 NwaCegarLoop]: 130 mSDtfsCounter, 2088 mSDsluCounter, 1630 mSDsCounter, 0 mSdLazyCounter, 1449 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2088 SdHoareTripleChecker+Valid, 1760 SdHoareTripleChecker+Invalid, 1495 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 1449 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-09 23:37:12,941 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2088 Valid, 1760 Invalid, 1495 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 1449 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-09 23:37:12,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47577 states. [2024-11-09 23:37:13,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47577 to 29295. [2024-11-09 23:37:13,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29295 states, 29294 states have (on average 1.2665733597323685) internal successors, (37103), 29294 states have internal predecessors, (37103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:37:13,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29295 states to 29295 states and 37103 transitions. [2024-11-09 23:37:13,730 INFO L78 Accepts]: Start accepts. Automaton has 29295 states and 37103 transitions. Word has length 92 [2024-11-09 23:37:13,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:37:13,730 INFO L471 AbstractCegarLoop]: Abstraction has 29295 states and 37103 transitions. [2024-11-09 23:37:13,731 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 6.852941176470588) internal successors, (233), 34 states have internal predecessors, (233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:37:13,731 INFO L276 IsEmpty]: Start isEmpty. Operand 29295 states and 37103 transitions. [2024-11-09 23:37:13,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-09 23:37:13,733 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:37:13,733 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, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:37:13,747 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-09 23:37:13,934 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 [2024-11-09 23:37:13,934 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:37:13,935 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:37:13,935 INFO L85 PathProgramCache]: Analyzing trace with hash -1340378755, now seen corresponding path program 1 times [2024-11-09 23:37:13,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:37:13,935 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1094858864] [2024-11-09 23:37:13,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:37:13,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:37:13,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:37:15,057 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 7 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 23:37:15,058 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:37:15,058 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1094858864] [2024-11-09 23:37:15,058 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1094858864] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 23:37:15,058 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1882134023] [2024-11-09 23:37:15,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:37:15,059 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 23:37:15,059 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 23:37:15,061 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) [2024-11-09 23:37:15,063 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-09 23:37:15,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:37:15,211 INFO L255 TraceCheckSpWp]: Trace formula consists of 414 conjuncts, 47 conjuncts are in the unsatisfiable core [2024-11-09 23:37:15,218 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 23:37:20,641 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 7 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 23:37:20,641 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 23:37:24,227 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 7 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 23:37:24,228 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1882134023] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 23:37:24,228 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 23:37:24,228 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 26, 21] total 53 [2024-11-09 23:37:24,228 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [205636907] [2024-11-09 23:37:24,228 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 23:37:24,229 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 53 states [2024-11-09 23:37:24,229 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:37:24,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 53 interpolants. [2024-11-09 23:37:24,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=374, Invalid=2382, Unknown=0, NotChecked=0, Total=2756 [2024-11-09 23:37:24,230 INFO L87 Difference]: Start difference. First operand 29295 states and 37103 transitions. Second operand has 53 states, 53 states have (on average 4.60377358490566) internal successors, (244), 53 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) [2024-11-09 23:37:59,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:37:59,920 INFO L93 Difference]: Finished difference Result 148427 states and 188209 transitions. [2024-11-09 23:37:59,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 152 states. [2024-11-09 23:37:59,921 INFO L78 Accepts]: Start accepts. Automaton has has 53 states, 53 states have (on average 4.60377358490566) internal successors, (244), 53 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 93 [2024-11-09 23:37:59,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:38:00,093 INFO L225 Difference]: With dead ends: 148427 [2024-11-09 23:38:00,093 INFO L226 Difference]: Without dead ends: 139136 [2024-11-09 23:38:00,118 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 345 GetRequests, 145 SyntacticMatches, 0 SemanticMatches, 200 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16067 ImplicationChecksByTransitivity, 29.6s TimeCoverageRelationStatistics Valid=7853, Invalid=32749, Unknown=0, NotChecked=0, Total=40602 [2024-11-09 23:38:00,119 INFO L432 NwaCegarLoop]: 212 mSDtfsCounter, 4299 mSDsluCounter, 5602 mSDsCounter, 0 mSdLazyCounter, 6376 mSolverCounterSat, 96 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4299 SdHoareTripleChecker+Valid, 5814 SdHoareTripleChecker+Invalid, 6472 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 96 IncrementalHoareTripleChecker+Valid, 6376 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2024-11-09 23:38:00,119 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4299 Valid, 5814 Invalid, 6472 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [96 Valid, 6376 Invalid, 0 Unknown, 0 Unchecked, 5.7s Time] [2024-11-09 23:38:00,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139136 states.