./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/pals_lcr.7.ufo.UNBOUNDED.pals.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version fca748b1 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/pals_lcr.7.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 760447de6aa5739f187553f004f72c898b25c540c6dba08996c9520ae7051de1 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dd.update-z3-fca748b-m [2024-11-19 22:31:21,642 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-19 22:31:21,743 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-19 22:31:21,747 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-19 22:31:21,750 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-19 22:31:21,781 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-19 22:31:21,782 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-19 22:31:21,782 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-19 22:31:21,783 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-19 22:31:21,784 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-19 22:31:21,784 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-19 22:31:21,786 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-19 22:31:21,786 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-19 22:31:21,786 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-19 22:31:21,787 INFO L153 SettingsManager]: * Use SBE=true [2024-11-19 22:31:21,789 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-19 22:31:21,790 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-19 22:31:21,790 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-19 22:31:21,790 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-19 22:31:21,790 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-19 22:31:21,790 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-19 22:31:21,791 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-19 22:31:21,791 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-19 22:31:21,791 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-19 22:31:21,792 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-19 22:31:21,792 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-19 22:31:21,792 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-19 22:31:21,792 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-19 22:31:21,792 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-19 22:31:21,793 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-19 22:31:21,793 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-19 22:31:21,793 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-19 22:31:21,793 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 22:31:21,794 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-19 22:31:21,794 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-19 22:31:21,794 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-19 22:31:21,798 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-19 22:31:21,799 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-19 22:31:21,799 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-19 22:31:21,799 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-19 22:31:21,799 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-19 22:31:21,800 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-19 22:31:21,801 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 760447de6aa5739f187553f004f72c898b25c540c6dba08996c9520ae7051de1 [2024-11-19 22:31:22,032 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-19 22:31:22,060 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-19 22:31:22,064 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-19 22:31:22,065 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-19 22:31:22,066 INFO L274 PluginConnector]: CDTParser initialized [2024-11-19 22:31:22,067 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/pals_lcr.7.ufo.UNBOUNDED.pals.c [2024-11-19 22:31:23,537 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-19 22:31:23,790 INFO L384 CDTParser]: Found 1 translation units. [2024-11-19 22:31:23,791 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/pals_lcr.7.ufo.UNBOUNDED.pals.c [2024-11-19 22:31:23,802 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/27fbafcb7/7086f01fabef4604aaf8f00522c2f95f/FLAGc551b02b2 [2024-11-19 22:31:24,119 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/27fbafcb7/7086f01fabef4604aaf8f00522c2f95f [2024-11-19 22:31:24,122 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-19 22:31:24,123 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-19 22:31:24,124 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-19 22:31:24,125 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-19 22:31:24,130 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-19 22:31:24,131 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 10:31:24" (1/1) ... [2024-11-19 22:31:24,134 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@34309730 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:31:24, skipping insertion in model container [2024-11-19 22:31:24,134 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 10:31:24" (1/1) ... [2024-11-19 22:31:24,188 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-19 22:31:24,511 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.7.ufo.UNBOUNDED.pals.c[20047,20060] [2024-11-19 22:31:24,518 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 22:31:24,529 INFO L200 MainTranslator]: Completed pre-run [2024-11-19 22:31:24,592 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.7.ufo.UNBOUNDED.pals.c[20047,20060] [2024-11-19 22:31:24,593 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 22:31:24,614 INFO L204 MainTranslator]: Completed translation [2024-11-19 22:31:24,614 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:31:24 WrapperNode [2024-11-19 22:31:24,614 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-19 22:31:24,616 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-19 22:31:24,616 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-19 22:31:24,616 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-19 22:31:24,623 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:31:24" (1/1) ... [2024-11-19 22:31:24,639 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:31:24" (1/1) ... [2024-11-19 22:31:24,676 INFO L138 Inliner]: procedures = 27, calls = 18, calls flagged for inlining = 13, calls inlined = 13, statements flattened = 458 [2024-11-19 22:31:24,677 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-19 22:31:24,677 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-19 22:31:24,678 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-19 22:31:24,678 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-19 22:31:24,690 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:31:24" (1/1) ... [2024-11-19 22:31:24,691 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:31:24" (1/1) ... [2024-11-19 22:31:24,694 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:31:24" (1/1) ... [2024-11-19 22:31:24,711 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]. [2024-11-19 22:31:24,712 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:31:24" (1/1) ... [2024-11-19 22:31:24,712 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:31:24" (1/1) ... [2024-11-19 22:31:24,720 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:31:24" (1/1) ... [2024-11-19 22:31:24,729 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:31:24" (1/1) ... [2024-11-19 22:31:24,731 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:31:24" (1/1) ... [2024-11-19 22:31:24,733 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:31:24" (1/1) ... [2024-11-19 22:31:24,737 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-19 22:31:24,738 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-19 22:31:24,738 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-19 22:31:24,738 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-19 22:31:24,739 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:31:24" (1/1) ... [2024-11-19 22:31:24,745 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 22:31:24,760 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 22:31:24,777 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) [2024-11-19 22:31:24,780 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 [2024-11-19 22:31:24,830 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-19 22:31:24,830 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-19 22:31:24,831 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-19 22:31:24,831 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-19 22:31:24,944 INFO L238 CfgBuilder]: Building ICFG [2024-11-19 22:31:24,947 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-19 22:31:25,523 INFO L? ?]: Removed 50 outVars from TransFormulas that were not future-live. [2024-11-19 22:31:25,523 INFO L287 CfgBuilder]: Performing block encoding [2024-11-19 22:31:25,554 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-19 22:31:25,555 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-19 22:31:25,555 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 10:31:25 BoogieIcfgContainer [2024-11-19 22:31:25,556 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-19 22:31:25,557 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-19 22:31:25,557 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-19 22:31:25,563 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-19 22:31:25,564 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 10:31:24" (1/3) ... [2024-11-19 22:31:25,564 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d64c75c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 10:31:25, skipping insertion in model container [2024-11-19 22:31:25,564 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:31:24" (2/3) ... [2024-11-19 22:31:25,565 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d64c75c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 10:31:25, skipping insertion in model container [2024-11-19 22:31:25,565 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 10:31:25" (3/3) ... [2024-11-19 22:31:25,566 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.7.ufo.UNBOUNDED.pals.c [2024-11-19 22:31:25,579 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-19 22:31:25,579 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-19 22:31:25,639 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 22:31:25,645 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;@7b103adb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 22:31:25,645 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-19 22:31:25,650 INFO L276 IsEmpty]: Start isEmpty. Operand has 116 states, 114 states have (on average 1.780701754385965) internal successors, (203), 115 states have internal predecessors, (203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:31:25,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2024-11-19 22:31:25,657 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 22:31:25,657 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] [2024-11-19 22:31:25,658 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 22:31:25,662 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 22:31:25,662 INFO L85 PathProgramCache]: Analyzing trace with hash 1728308088, now seen corresponding path program 1 times [2024-11-19 22:31:25,671 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 22:31:25,671 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [932313600] [2024-11-19 22:31:25,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:31:25,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 22:31:25,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:31:25,954 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 22:31:25,955 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 22:31:25,955 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [932313600] [2024-11-19 22:31:25,956 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [932313600] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 22:31:25,956 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 22:31:25,956 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 22:31:25,958 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1197292334] [2024-11-19 22:31:25,959 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 22:31:25,963 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-19 22:31:25,964 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 22:31:25,991 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-19 22:31:25,992 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-19 22:31:25,995 INFO L87 Difference]: Start difference. First operand has 116 states, 114 states have (on average 1.780701754385965) internal successors, (203), 115 states have internal predecessors, (203), 0 states have call successors, (0), 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 13.5) internal successors, (27), 2 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:31:26,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 22:31:26,024 INFO L93 Difference]: Finished difference Result 173 states and 297 transitions. [2024-11-19 22:31:26,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-19 22:31:26,026 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 0 states have call successors, (0), 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 27 [2024-11-19 22:31:26,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 22:31:26,038 INFO L225 Difference]: With dead ends: 173 [2024-11-19 22:31:26,039 INFO L226 Difference]: Without dead ends: 112 [2024-11-19 22:31:26,042 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 [2024-11-19 22:31:26,046 INFO L432 NwaCegarLoop]: 196 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, 196 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 [2024-11-19 22:31:26,047 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 196 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 22:31:26,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2024-11-19 22:31:26,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 112. [2024-11-19 22:31:26,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112 states, 111 states have (on average 1.7657657657657657) internal successors, (196), 111 states have internal predecessors, (196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:31:26,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 196 transitions. [2024-11-19 22:31:26,093 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 196 transitions. Word has length 27 [2024-11-19 22:31:26,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 22:31:26,095 INFO L471 AbstractCegarLoop]: Abstraction has 112 states and 196 transitions. [2024-11-19 22:31:26,096 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:31:26,096 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 196 transitions. [2024-11-19 22:31:26,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2024-11-19 22:31:26,099 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 22:31:26,099 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] [2024-11-19 22:31:26,100 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-19 22:31:26,100 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 22:31:26,101 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 22:31:26,101 INFO L85 PathProgramCache]: Analyzing trace with hash 1947162806, now seen corresponding path program 1 times [2024-11-19 22:31:26,102 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 22:31:26,102 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2115434951] [2024-11-19 22:31:26,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:31:26,103 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 22:31:26,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:31:26,375 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 22:31:26,376 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 22:31:26,376 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2115434951] [2024-11-19 22:31:26,376 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2115434951] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 22:31:26,376 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 22:31:26,376 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 22:31:26,377 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [916042332] [2024-11-19 22:31:26,377 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 22:31:26,379 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 22:31:26,380 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 22:31:26,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 22:31:26,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-19 22:31:26,382 INFO L87 Difference]: Start difference. First operand 112 states and 196 transitions. Second operand has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:31:26,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 22:31:26,511 INFO L93 Difference]: Finished difference Result 172 states and 290 transitions. [2024-11-19 22:31:26,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 22:31:26,512 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 0 states have call successors, (0), 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 27 [2024-11-19 22:31:26,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 22:31:26,513 INFO L225 Difference]: With dead ends: 172 [2024-11-19 22:31:26,513 INFO L226 Difference]: Without dead ends: 112 [2024-11-19 22:31:26,514 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 [2024-11-19 22:31:26,515 INFO L432 NwaCegarLoop]: 194 mSDtfsCounter, 0 mSDsluCounter, 527 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 721 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 22:31:26,516 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 721 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 22:31:26,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2024-11-19 22:31:26,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 112. [2024-11-19 22:31:26,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112 states, 111 states have (on average 1.3153153153153154) internal successors, (146), 111 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) [2024-11-19 22:31:26,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 146 transitions. [2024-11-19 22:31:26,528 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 146 transitions. Word has length 27 [2024-11-19 22:31:26,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 22:31:26,529 INFO L471 AbstractCegarLoop]: Abstraction has 112 states and 146 transitions. [2024-11-19 22:31:26,529 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:31:26,529 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 146 transitions. [2024-11-19 22:31:26,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-11-19 22:31:26,531 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 22:31:26,531 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 22:31:26,531 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-19 22:31:26,531 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 22:31:26,532 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 22:31:26,532 INFO L85 PathProgramCache]: Analyzing trace with hash 1738990554, now seen corresponding path program 1 times [2024-11-19 22:31:26,532 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 22:31:26,532 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1008052392] [2024-11-19 22:31:26,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:31:26,533 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 22:31:26,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:31:26,901 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 22:31:26,901 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 22:31:26,901 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1008052392] [2024-11-19 22:31:26,902 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1008052392] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 22:31:26,902 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 22:31:26,902 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-19 22:31:26,903 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [782369814] [2024-11-19 22:31:26,903 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 22:31:26,903 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-19 22:31:26,904 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 22:31:26,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-19 22:31:26,904 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-19 22:31:26,905 INFO L87 Difference]: Start difference. First operand 112 states and 146 transitions. Second operand has 9 states, 9 states have (on average 8.444444444444445) internal successors, (76), 9 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) [2024-11-19 22:31:27,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 22:31:27,390 INFO L93 Difference]: Finished difference Result 896 states and 1406 transitions. [2024-11-19 22:31:27,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-19 22:31:27,391 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.444444444444445) internal successors, (76), 9 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 76 [2024-11-19 22:31:27,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 22:31:27,398 INFO L225 Difference]: With dead ends: 896 [2024-11-19 22:31:27,398 INFO L226 Difference]: Without dead ends: 840 [2024-11-19 22:31:27,400 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=124, Invalid=256, Unknown=0, NotChecked=0, Total=380 [2024-11-19 22:31:27,403 INFO L432 NwaCegarLoop]: 140 mSDtfsCounter, 1616 mSDsluCounter, 2532 mSDsCounter, 0 mSdLazyCounter, 218 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1616 SdHoareTripleChecker+Valid, 2672 SdHoareTripleChecker+Invalid, 230 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 218 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-19 22:31:27,405 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1616 Valid, 2672 Invalid, 230 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 218 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-19 22:31:27,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 840 states. [2024-11-19 22:31:27,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 840 to 166. [2024-11-19 22:31:27,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 166 states, 165 states have (on average 1.412121212121212) internal successors, (233), 165 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) [2024-11-19 22:31:27,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 233 transitions. [2024-11-19 22:31:27,448 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 233 transitions. Word has length 76 [2024-11-19 22:31:27,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 22:31:27,451 INFO L471 AbstractCegarLoop]: Abstraction has 166 states and 233 transitions. [2024-11-19 22:31:27,451 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.444444444444445) internal successors, (76), 9 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) [2024-11-19 22:31:27,451 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 233 transitions. [2024-11-19 22:31:27,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-11-19 22:31:27,453 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 22:31:27,453 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 22:31:27,454 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-19 22:31:27,454 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 22:31:27,456 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 22:31:27,458 INFO L85 PathProgramCache]: Analyzing trace with hash -988047094, now seen corresponding path program 1 times [2024-11-19 22:31:27,459 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 22:31:27,459 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [171262772] [2024-11-19 22:31:27,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:31:27,459 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 22:31:27,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:31:27,657 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 22:31:27,658 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 22:31:27,658 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [171262772] [2024-11-19 22:31:27,658 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [171262772] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 22:31:27,659 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 22:31:27,659 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 22:31:27,659 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [515399873] [2024-11-19 22:31:27,660 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 22:31:27,660 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 22:31:27,660 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 22:31:27,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 22:31:27,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 22:31:27,662 INFO L87 Difference]: Start difference. First operand 166 states and 233 transitions. Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:31:27,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 22:31:27,690 INFO L93 Difference]: Finished difference Result 375 states and 568 transitions. [2024-11-19 22:31:27,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 22:31:27,690 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78 [2024-11-19 22:31:27,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 22:31:27,692 INFO L225 Difference]: With dead ends: 375 [2024-11-19 22:31:27,692 INFO L226 Difference]: Without dead ends: 265 [2024-11-19 22:31:27,694 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 [2024-11-19 22:31:27,697 INFO L432 NwaCegarLoop]: 142 mSDtfsCounter, 61 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 225 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 22:31:27,697 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 225 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 22:31:27,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265 states. [2024-11-19 22:31:27,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 261. [2024-11-19 22:31:27,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 261 states, 260 states have (on average 1.4730769230769232) internal successors, (383), 260 states have internal predecessors, (383), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:31:27,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 383 transitions. [2024-11-19 22:31:27,716 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 383 transitions. Word has length 78 [2024-11-19 22:31:27,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 22:31:27,716 INFO L471 AbstractCegarLoop]: Abstraction has 261 states and 383 transitions. [2024-11-19 22:31:27,718 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:31:27,718 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 383 transitions. [2024-11-19 22:31:27,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-11-19 22:31:27,723 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 22:31:27,723 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 22:31:27,723 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-19 22:31:27,723 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 22:31:27,724 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 22:31:27,724 INFO L85 PathProgramCache]: Analyzing trace with hash -921553582, now seen corresponding path program 1 times [2024-11-19 22:31:27,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 22:31:27,725 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1520254400] [2024-11-19 22:31:27,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:31:27,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 22:31:27,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:31:28,271 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 22:31:28,271 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 22:31:28,271 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1520254400] [2024-11-19 22:31:28,272 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1520254400] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 22:31:28,272 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 22:31:28,272 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-19 22:31:28,272 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1018983174] [2024-11-19 22:31:28,272 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 22:31:28,273 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-19 22:31:28,273 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 22:31:28,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-19 22:31:28,274 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-19 22:31:28,274 INFO L87 Difference]: Start difference. First operand 261 states and 383 transitions. Second operand has 9 states, 9 states have (on average 8.666666666666666) internal successors, (78), 9 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) [2024-11-19 22:31:28,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 22:31:28,634 INFO L93 Difference]: Finished difference Result 468 states and 711 transitions. [2024-11-19 22:31:28,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-19 22:31:28,634 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.666666666666666) internal successors, (78), 9 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78 [2024-11-19 22:31:28,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 22:31:28,637 INFO L225 Difference]: With dead ends: 468 [2024-11-19 22:31:28,637 INFO L226 Difference]: Without dead ends: 263 [2024-11-19 22:31:28,638 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=66, Invalid=116, Unknown=0, NotChecked=0, Total=182 [2024-11-19 22:31:28,640 INFO L432 NwaCegarLoop]: 137 mSDtfsCounter, 123 mSDsluCounter, 616 mSDsCounter, 0 mSdLazyCounter, 121 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 753 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 22:31:28,641 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [123 Valid, 753 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 121 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 22:31:28,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 263 states. [2024-11-19 22:31:28,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 263 to 261. [2024-11-19 22:31:28,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 261 states, 260 states have (on average 1.4653846153846153) internal successors, (381), 260 states have internal predecessors, (381), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:31:28,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 381 transitions. [2024-11-19 22:31:28,654 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 381 transitions. Word has length 78 [2024-11-19 22:31:28,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 22:31:28,654 INFO L471 AbstractCegarLoop]: Abstraction has 261 states and 381 transitions. [2024-11-19 22:31:28,655 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.666666666666666) internal successors, (78), 9 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) [2024-11-19 22:31:28,655 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 381 transitions. [2024-11-19 22:31:28,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-19 22:31:28,657 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 22:31:28,657 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 22:31:28,657 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-19 22:31:28,657 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 22:31:28,657 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 22:31:28,658 INFO L85 PathProgramCache]: Analyzing trace with hash 1081887121, now seen corresponding path program 1 times [2024-11-19 22:31:28,658 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 22:31:28,658 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [617103824] [2024-11-19 22:31:28,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:31:28,659 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 22:31:28,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:31:28,947 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 22:31:28,947 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 22:31:28,948 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [617103824] [2024-11-19 22:31:28,948 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [617103824] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 22:31:28,948 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 22:31:28,948 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-19 22:31:28,948 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1279866440] [2024-11-19 22:31:28,949 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 22:31:28,949 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-19 22:31:28,949 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 22:31:28,950 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-19 22:31:28,950 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-19 22:31:28,950 INFO L87 Difference]: Start difference. First operand 261 states and 381 transitions. Second operand has 8 states, 8 states have (on average 9.875) internal successors, (79), 8 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:31:28,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 22:31:28,995 INFO L93 Difference]: Finished difference Result 269 states and 390 transitions. [2024-11-19 22:31:28,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-19 22:31:28,995 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.875) internal successors, (79), 8 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 79 [2024-11-19 22:31:28,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 22:31:28,997 INFO L225 Difference]: With dead ends: 269 [2024-11-19 22:31:28,998 INFO L226 Difference]: Without dead ends: 267 [2024-11-19 22:31:28,998 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 [2024-11-19 22:31:28,999 INFO L432 NwaCegarLoop]: 140 mSDtfsCounter, 0 mSDsluCounter, 827 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 967 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 [2024-11-19 22:31:29,001 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 967 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 22:31:29,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 267 states. [2024-11-19 22:31:29,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 267 to 267. [2024-11-19 22:31:29,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 267 states, 266 states have (on average 1.4511278195488722) internal successors, (386), 266 states have internal predecessors, (386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:31:29,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 267 states to 267 states and 386 transitions. [2024-11-19 22:31:29,014 INFO L78 Accepts]: Start accepts. Automaton has 267 states and 386 transitions. Word has length 79 [2024-11-19 22:31:29,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 22:31:29,017 INFO L471 AbstractCegarLoop]: Abstraction has 267 states and 386 transitions. [2024-11-19 22:31:29,017 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.875) internal successors, (79), 8 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:31:29,017 INFO L276 IsEmpty]: Start isEmpty. Operand 267 states and 386 transitions. [2024-11-19 22:31:29,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-11-19 22:31:29,018 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 22:31:29,019 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 22:31:29,019 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-19 22:31:29,019 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 22:31:29,019 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 22:31:29,019 INFO L85 PathProgramCache]: Analyzing trace with hash -610705390, now seen corresponding path program 1 times [2024-11-19 22:31:29,019 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 22:31:29,020 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2116068327] [2024-11-19 22:31:29,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:31:29,020 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 22:31:29,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:31:29,098 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 22:31:29,099 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 22:31:29,099 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2116068327] [2024-11-19 22:31:29,099 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2116068327] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 22:31:29,099 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 22:31:29,099 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 22:31:29,099 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2030745331] [2024-11-19 22:31:29,099 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 22:31:29,100 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 22:31:29,100 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 22:31:29,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 22:31:29,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 22:31:29,102 INFO L87 Difference]: Start difference. First operand 267 states and 386 transitions. Second operand has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:31:29,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 22:31:29,125 INFO L93 Difference]: Finished difference Result 673 states and 1018 transitions. [2024-11-19 22:31:29,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 22:31:29,125 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 0 states have call successors, (0), 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 [2024-11-19 22:31:29,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 22:31:29,128 INFO L225 Difference]: With dead ends: 673 [2024-11-19 22:31:29,128 INFO L226 Difference]: Without dead ends: 462 [2024-11-19 22:31:29,129 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 [2024-11-19 22:31:29,130 INFO L432 NwaCegarLoop]: 213 mSDtfsCounter, 78 mSDsluCounter, 95 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 308 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 [2024-11-19 22:31:29,130 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 308 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 22:31:29,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 462 states. [2024-11-19 22:31:29,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 462 to 460. [2024-11-19 22:31:29,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 460 states, 459 states have (on average 1.4880174291938997) internal successors, (683), 459 states have internal predecessors, (683), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:31:29,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 460 states to 460 states and 683 transitions. [2024-11-19 22:31:29,142 INFO L78 Accepts]: Start accepts. Automaton has 460 states and 683 transitions. Word has length 80 [2024-11-19 22:31:29,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 22:31:29,142 INFO L471 AbstractCegarLoop]: Abstraction has 460 states and 683 transitions. [2024-11-19 22:31:29,142 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:31:29,143 INFO L276 IsEmpty]: Start isEmpty. Operand 460 states and 683 transitions. [2024-11-19 22:31:29,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-11-19 22:31:29,144 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 22:31:29,144 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 22:31:29,144 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-19 22:31:29,144 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 22:31:29,145 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 22:31:29,145 INFO L85 PathProgramCache]: Analyzing trace with hash -183934446, now seen corresponding path program 1 times [2024-11-19 22:31:29,145 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 22:31:29,145 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [456238975] [2024-11-19 22:31:29,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:31:29,145 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 22:31:29,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:31:29,230 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 22:31:29,230 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 22:31:29,230 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [456238975] [2024-11-19 22:31:29,230 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [456238975] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 22:31:29,231 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 22:31:29,231 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 22:31:29,231 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1015695439] [2024-11-19 22:31:29,231 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 22:31:29,232 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 22:31:29,232 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 22:31:29,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 22:31:29,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 22:31:29,233 INFO L87 Difference]: Start difference. First operand 460 states and 683 transitions. Second operand has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:31:29,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 22:31:29,261 INFO L93 Difference]: Finished difference Result 1236 states and 1881 transitions. [2024-11-19 22:31:29,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 22:31:29,262 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 0 states have call successors, (0), 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 [2024-11-19 22:31:29,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 22:31:29,265 INFO L225 Difference]: With dead ends: 1236 [2024-11-19 22:31:29,265 INFO L226 Difference]: Without dead ends: 832 [2024-11-19 22:31:29,266 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 [2024-11-19 22:31:29,267 INFO L432 NwaCegarLoop]: 201 mSDtfsCounter, 74 mSDsluCounter, 103 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 304 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 [2024-11-19 22:31:29,267 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 304 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 22:31:29,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 832 states. [2024-11-19 22:31:29,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 832 to 830. [2024-11-19 22:31:29,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 830 states, 829 states have (on average 1.5018094089264173) internal successors, (1245), 829 states have internal predecessors, (1245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:31:29,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 830 states to 830 states and 1245 transitions. [2024-11-19 22:31:29,293 INFO L78 Accepts]: Start accepts. Automaton has 830 states and 1245 transitions. Word has length 80 [2024-11-19 22:31:29,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 22:31:29,294 INFO L471 AbstractCegarLoop]: Abstraction has 830 states and 1245 transitions. [2024-11-19 22:31:29,294 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:31:29,294 INFO L276 IsEmpty]: Start isEmpty. Operand 830 states and 1245 transitions. [2024-11-19 22:31:29,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-11-19 22:31:29,295 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 22:31:29,296 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 22:31:29,296 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-19 22:31:29,296 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 22:31:29,296 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 22:31:29,297 INFO L85 PathProgramCache]: Analyzing trace with hash 1054327570, now seen corresponding path program 1 times [2024-11-19 22:31:29,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 22:31:29,297 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1602918083] [2024-11-19 22:31:29,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:31:29,297 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 22:31:29,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:31:29,368 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 22:31:29,369 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 22:31:29,369 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1602918083] [2024-11-19 22:31:29,369 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1602918083] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 22:31:29,369 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 22:31:29,369 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 22:31:29,369 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1874655680] [2024-11-19 22:31:29,369 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 22:31:29,370 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 22:31:29,370 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 22:31:29,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 22:31:29,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 22:31:29,370 INFO L87 Difference]: Start difference. First operand 830 states and 1245 transitions. Second operand has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:31:29,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 22:31:29,404 INFO L93 Difference]: Finished difference Result 2314 states and 3511 transitions. [2024-11-19 22:31:29,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 22:31:29,405 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 0 states have call successors, (0), 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 [2024-11-19 22:31:29,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 22:31:29,410 INFO L225 Difference]: With dead ends: 2314 [2024-11-19 22:31:29,410 INFO L226 Difference]: Without dead ends: 1540 [2024-11-19 22:31:29,411 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 [2024-11-19 22:31:29,412 INFO L432 NwaCegarLoop]: 199 mSDtfsCounter, 72 mSDsluCounter, 107 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 306 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 [2024-11-19 22:31:29,412 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 306 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 22:31:29,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1540 states. [2024-11-19 22:31:29,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1540 to 1538. [2024-11-19 22:31:29,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1538 states, 1537 states have (on average 1.4996746909564085) internal successors, (2305), 1537 states have internal predecessors, (2305), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:31:29,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1538 states to 1538 states and 2305 transitions. [2024-11-19 22:31:29,452 INFO L78 Accepts]: Start accepts. Automaton has 1538 states and 2305 transitions. Word has length 80 [2024-11-19 22:31:29,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 22:31:29,452 INFO L471 AbstractCegarLoop]: Abstraction has 1538 states and 2305 transitions. [2024-11-19 22:31:29,453 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:31:29,453 INFO L276 IsEmpty]: Start isEmpty. Operand 1538 states and 2305 transitions. [2024-11-19 22:31:29,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-11-19 22:31:29,454 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 22:31:29,454 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 22:31:29,454 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-19 22:31:29,454 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 22:31:29,454 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 22:31:29,455 INFO L85 PathProgramCache]: Analyzing trace with hash 619791634, now seen corresponding path program 1 times [2024-11-19 22:31:29,455 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 22:31:29,456 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [824497777] [2024-11-19 22:31:29,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:31:29,456 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 22:31:29,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:31:29,524 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 22:31:29,524 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 22:31:29,525 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [824497777] [2024-11-19 22:31:29,525 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [824497777] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 22:31:29,525 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 22:31:29,525 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 22:31:29,525 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1186860370] [2024-11-19 22:31:29,525 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 22:31:29,525 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 22:31:29,526 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 22:31:29,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 22:31:29,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 22:31:29,526 INFO L87 Difference]: Start difference. First operand 1538 states and 2305 transitions. Second operand has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:31:29,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 22:31:29,578 INFO L93 Difference]: Finished difference Result 4374 states and 6579 transitions. [2024-11-19 22:31:29,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 22:31:29,578 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 0 states have call successors, (0), 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 [2024-11-19 22:31:29,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 22:31:29,589 INFO L225 Difference]: With dead ends: 4374 [2024-11-19 22:31:29,589 INFO L226 Difference]: Without dead ends: 2892 [2024-11-19 22:31:29,592 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 [2024-11-19 22:31:29,593 INFO L432 NwaCegarLoop]: 187 mSDtfsCounter, 68 mSDsluCounter, 115 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 302 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 [2024-11-19 22:31:29,593 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 302 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 22:31:29,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2892 states. [2024-11-19 22:31:29,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2892 to 2890. [2024-11-19 22:31:29,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2890 states, 2889 states have (on average 1.4873658705434407) internal successors, (4297), 2889 states have internal predecessors, (4297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:31:29,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2890 states to 2890 states and 4297 transitions. [2024-11-19 22:31:29,687 INFO L78 Accepts]: Start accepts. Automaton has 2890 states and 4297 transitions. Word has length 80 [2024-11-19 22:31:29,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 22:31:29,688 INFO L471 AbstractCegarLoop]: Abstraction has 2890 states and 4297 transitions. [2024-11-19 22:31:29,688 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:31:29,688 INFO L276 IsEmpty]: Start isEmpty. Operand 2890 states and 4297 transitions. [2024-11-19 22:31:29,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-11-19 22:31:29,689 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 22:31:29,689 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 22:31:29,689 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-19 22:31:29,689 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 22:31:29,690 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 22:31:29,690 INFO L85 PathProgramCache]: Analyzing trace with hash -1161141230, now seen corresponding path program 1 times [2024-11-19 22:31:29,690 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 22:31:29,690 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1674518038] [2024-11-19 22:31:29,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:31:29,691 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 22:31:29,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:31:29,753 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 22:31:29,753 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 22:31:29,753 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1674518038] [2024-11-19 22:31:29,754 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1674518038] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 22:31:29,754 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 22:31:29,754 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 22:31:29,754 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [955927053] [2024-11-19 22:31:29,754 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 22:31:29,755 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 22:31:29,755 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 22:31:29,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 22:31:29,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 22:31:29,755 INFO L87 Difference]: Start difference. First operand 2890 states and 4297 transitions. Second operand has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:31:29,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 22:31:29,841 INFO L93 Difference]: Finished difference Result 8302 states and 12331 transitions. [2024-11-19 22:31:29,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 22:31:29,842 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 0 states have call successors, (0), 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 [2024-11-19 22:31:29,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 22:31:29,861 INFO L225 Difference]: With dead ends: 8302 [2024-11-19 22:31:29,862 INFO L226 Difference]: Without dead ends: 5468 [2024-11-19 22:31:29,866 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 [2024-11-19 22:31:29,867 INFO L432 NwaCegarLoop]: 197 mSDtfsCounter, 70 mSDsluCounter, 111 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 308 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 [2024-11-19 22:31:29,867 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 308 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 22:31:29,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5468 states. [2024-11-19 22:31:30,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5468 to 5466. [2024-11-19 22:31:30,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5466 states, 5465 states have (on average 1.4684354986276305) internal successors, (8025), 5465 states have internal predecessors, (8025), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:31:30,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5466 states to 5466 states and 8025 transitions. [2024-11-19 22:31:30,034 INFO L78 Accepts]: Start accepts. Automaton has 5466 states and 8025 transitions. Word has length 80 [2024-11-19 22:31:30,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 22:31:30,034 INFO L471 AbstractCegarLoop]: Abstraction has 5466 states and 8025 transitions. [2024-11-19 22:31:30,034 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:31:30,035 INFO L276 IsEmpty]: Start isEmpty. Operand 5466 states and 8025 transitions. [2024-11-19 22:31:30,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-11-19 22:31:30,035 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 22:31:30,036 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 22:31:30,036 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-19 22:31:30,036 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 22:31:30,036 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 22:31:30,036 INFO L85 PathProgramCache]: Analyzing trace with hash -447790830, now seen corresponding path program 1 times [2024-11-19 22:31:30,037 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 22:31:30,037 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1416479828] [2024-11-19 22:31:30,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:31:30,037 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 22:31:30,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:31:30,095 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 22:31:30,096 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 22:31:30,096 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1416479828] [2024-11-19 22:31:30,096 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1416479828] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 22:31:30,096 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 22:31:30,096 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 22:31:30,096 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [476570087] [2024-11-19 22:31:30,096 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 22:31:30,097 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 22:31:30,097 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 22:31:30,097 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 22:31:30,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 22:31:30,098 INFO L87 Difference]: Start difference. First operand 5466 states and 8025 transitions. Second operand has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:31:30,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 22:31:30,289 INFO L93 Difference]: Finished difference Result 15774 states and 23067 transitions. [2024-11-19 22:31:30,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 22:31:30,290 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 0 states have call successors, (0), 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 [2024-11-19 22:31:30,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 22:31:30,324 INFO L225 Difference]: With dead ends: 15774 [2024-11-19 22:31:30,324 INFO L226 Difference]: Without dead ends: 10364 [2024-11-19 22:31:30,332 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 [2024-11-19 22:31:30,333 INFO L432 NwaCegarLoop]: 211 mSDtfsCounter, 76 mSDsluCounter, 99 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 310 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 [2024-11-19 22:31:30,333 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 310 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 22:31:30,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10364 states. [2024-11-19 22:31:30,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10364 to 10362. [2024-11-19 22:31:30,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10362 states, 10361 states have (on average 1.444744715761027) internal successors, (14969), 10361 states have internal predecessors, (14969), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:31:30,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10362 states to 10362 states and 14969 transitions. [2024-11-19 22:31:30,680 INFO L78 Accepts]: Start accepts. Automaton has 10362 states and 14969 transitions. Word has length 80 [2024-11-19 22:31:30,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 22:31:30,681 INFO L471 AbstractCegarLoop]: Abstraction has 10362 states and 14969 transitions. [2024-11-19 22:31:30,681 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:31:30,681 INFO L276 IsEmpty]: Start isEmpty. Operand 10362 states and 14969 transitions. [2024-11-19 22:31:30,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-11-19 22:31:30,682 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 22:31:30,683 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 22:31:30,683 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-19 22:31:30,683 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 22:31:30,684 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 22:31:30,684 INFO L85 PathProgramCache]: Analyzing trace with hash -1597757267, now seen corresponding path program 1 times [2024-11-19 22:31:30,684 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 22:31:30,684 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1580149716] [2024-11-19 22:31:30,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:31:30,685 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 22:31:30,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:31:30,752 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 22:31:30,753 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 22:31:30,753 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1580149716] [2024-11-19 22:31:30,753 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1580149716] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 22:31:30,753 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 22:31:30,753 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 22:31:30,754 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1464672091] [2024-11-19 22:31:30,754 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 22:31:30,754 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 22:31:30,755 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 22:31:30,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 22:31:30,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 22:31:30,756 INFO L87 Difference]: Start difference. First operand 10362 states and 14969 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) [2024-11-19 22:31:30,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 22:31:30,977 INFO L93 Difference]: Finished difference Result 21121 states and 30719 transitions. [2024-11-19 22:31:30,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 22:31:30,978 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 [2024-11-19 22:31:30,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 22:31:31,101 INFO L225 Difference]: With dead ends: 21121 [2024-11-19 22:31:31,101 INFO L226 Difference]: Without dead ends: 15358 [2024-11-19 22:31:31,110 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 [2024-11-19 22:31:31,110 INFO L432 NwaCegarLoop]: 218 mSDtfsCounter, 77 mSDsluCounter, 91 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 309 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 [2024-11-19 22:31:31,111 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 309 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 22:31:31,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15358 states. [2024-11-19 22:31:31,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15358 to 15356. [2024-11-19 22:31:31,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15356 states, 15355 states have (on average 1.4376424617388472) internal successors, (22075), 15355 states have internal predecessors, (22075), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:31:31,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15356 states to 15356 states and 22075 transitions. [2024-11-19 22:31:31,599 INFO L78 Accepts]: Start accepts. Automaton has 15356 states and 22075 transitions. Word has length 82 [2024-11-19 22:31:31,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 22:31:31,599 INFO L471 AbstractCegarLoop]: Abstraction has 15356 states and 22075 transitions. [2024-11-19 22:31:31,600 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) [2024-11-19 22:31:31,600 INFO L276 IsEmpty]: Start isEmpty. Operand 15356 states and 22075 transitions. [2024-11-19 22:31:31,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-19 22:31:31,604 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 22:31:31,604 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 22:31:31,605 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-19 22:31:31,605 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 22:31:31,605 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 22:31:31,605 INFO L85 PathProgramCache]: Analyzing trace with hash -314401999, now seen corresponding path program 1 times [2024-11-19 22:31:31,606 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 22:31:31,606 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1949025435] [2024-11-19 22:31:31,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:31:31,606 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 22:31:31,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:31:31,945 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-19 22:31:31,945 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 22:31:31,945 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1949025435] [2024-11-19 22:31:31,945 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1949025435] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 22:31:31,945 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 22:31:31,945 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-19 22:31:31,946 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [12686253] [2024-11-19 22:31:31,946 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 22:31:31,946 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-19 22:31:31,946 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 22:31:31,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-19 22:31:31,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-19 22:31:31,947 INFO L87 Difference]: Start difference. First operand 15356 states and 22075 transitions. Second operand has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 9 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:31:33,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 22:31:33,859 INFO L93 Difference]: Finished difference Result 125580 states and 180547 transitions. [2024-11-19 22:31:33,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-19 22:31:33,860 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 9 states have internal predecessors, (100), 0 states have call successors, (0), 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 103 [2024-11-19 22:31:33,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 22:31:34,127 INFO L225 Difference]: With dead ends: 125580 [2024-11-19 22:31:34,127 INFO L226 Difference]: Without dead ends: 110282 [2024-11-19 22:31:34,167 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2024-11-19 22:31:34,167 INFO L432 NwaCegarLoop]: 233 mSDtfsCounter, 1342 mSDsluCounter, 1174 mSDsCounter, 0 mSdLazyCounter, 155 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1342 SdHoareTripleChecker+Valid, 1407 SdHoareTripleChecker+Invalid, 161 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 155 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 22:31:34,168 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1342 Valid, 1407 Invalid, 161 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 155 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 22:31:34,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110282 states. [2024-11-19 22:31:35,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110282 to 30652. [2024-11-19 22:31:35,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30652 states, 30651 states have (on average 1.432220808456494) internal successors, (43899), 30651 states have internal predecessors, (43899), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:31:36,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30652 states to 30652 states and 43899 transitions. [2024-11-19 22:31:36,049 INFO L78 Accepts]: Start accepts. Automaton has 30652 states and 43899 transitions. Word has length 103 [2024-11-19 22:31:36,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 22:31:36,050 INFO L471 AbstractCegarLoop]: Abstraction has 30652 states and 43899 transitions. [2024-11-19 22:31:36,050 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 9 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:31:36,051 INFO L276 IsEmpty]: Start isEmpty. Operand 30652 states and 43899 transitions. [2024-11-19 22:31:36,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-19 22:31:36,056 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 22:31:36,057 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 22:31:36,057 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-19 22:31:36,057 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 22:31:36,058 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 22:31:36,058 INFO L85 PathProgramCache]: Analyzing trace with hash 112368945, now seen corresponding path program 1 times [2024-11-19 22:31:36,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 22:31:36,059 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1507805735] [2024-11-19 22:31:36,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:31:36,059 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 22:31:36,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:31:36,487 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-19 22:31:36,488 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 22:31:36,488 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1507805735] [2024-11-19 22:31:36,488 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1507805735] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 22:31:36,488 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 22:31:36,489 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-19 22:31:36,489 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1386910104] [2024-11-19 22:31:36,489 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 22:31:36,489 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-19 22:31:36,490 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 22:31:36,490 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-19 22:31:36,490 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-19 22:31:36,491 INFO L87 Difference]: Start difference. First operand 30652 states and 43899 transitions. Second operand has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 9 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:31:38,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 22:31:38,429 INFO L93 Difference]: Finished difference Result 140876 states and 202371 transitions. [2024-11-19 22:31:38,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-19 22:31:38,430 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 9 states have internal predecessors, (96), 0 states have call successors, (0), 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 103 [2024-11-19 22:31:38,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 22:31:38,683 INFO L225 Difference]: With dead ends: 140876 [2024-11-19 22:31:38,683 INFO L226 Difference]: Without dead ends: 125578 [2024-11-19 22:31:38,738 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2024-11-19 22:31:38,739 INFO L432 NwaCegarLoop]: 230 mSDtfsCounter, 1386 mSDsluCounter, 1163 mSDsCounter, 0 mSdLazyCounter, 191 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1386 SdHoareTripleChecker+Valid, 1393 SdHoareTripleChecker+Invalid, 197 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 191 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-19 22:31:38,739 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1386 Valid, 1393 Invalid, 197 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 191 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-19 22:31:38,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125578 states. [2024-11-19 22:31:40,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125578 to 53628. [2024-11-19 22:31:40,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53628 states, 53627 states have (on average 1.4260540399425663) internal successors, (76475), 53627 states have internal predecessors, (76475), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:31:40,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53628 states to 53628 states and 76475 transitions. [2024-11-19 22:31:40,814 INFO L78 Accepts]: Start accepts. Automaton has 53628 states and 76475 transitions. Word has length 103 [2024-11-19 22:31:40,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 22:31:40,816 INFO L471 AbstractCegarLoop]: Abstraction has 53628 states and 76475 transitions. [2024-11-19 22:31:40,816 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 9 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:31:40,816 INFO L276 IsEmpty]: Start isEmpty. Operand 53628 states and 76475 transitions. [2024-11-19 22:31:40,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-19 22:31:40,822 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 22:31:40,823 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 22:31:40,823 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-19 22:31:40,823 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 22:31:40,824 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 22:31:40,824 INFO L85 PathProgramCache]: Analyzing trace with hash 1350630961, now seen corresponding path program 1 times [2024-11-19 22:31:40,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 22:31:40,824 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [801852140] [2024-11-19 22:31:40,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:31:40,824 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 22:31:40,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:31:41,048 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-19 22:31:41,050 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 22:31:41,050 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [801852140] [2024-11-19 22:31:41,050 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [801852140] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 22:31:41,050 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 22:31:41,051 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-19 22:31:41,051 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1449065977] [2024-11-19 22:31:41,051 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 22:31:41,051 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-19 22:31:41,051 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 22:31:41,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-19 22:31:41,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-19 22:31:41,052 INFO L87 Difference]: Start difference. First operand 53628 states and 76475 transitions. Second operand has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 9 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:31:43,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 22:31:43,562 INFO L93 Difference]: Finished difference Result 156172 states and 224195 transitions. [2024-11-19 22:31:43,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-19 22:31:43,562 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 9 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 103 [2024-11-19 22:31:43,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 22:31:43,979 INFO L225 Difference]: With dead ends: 156172 [2024-11-19 22:31:43,979 INFO L226 Difference]: Without dead ends: 140874 [2024-11-19 22:31:44,024 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2024-11-19 22:31:44,025 INFO L432 NwaCegarLoop]: 227 mSDtfsCounter, 1548 mSDsluCounter, 1079 mSDsCounter, 0 mSdLazyCounter, 189 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1548 SdHoareTripleChecker+Valid, 1306 SdHoareTripleChecker+Invalid, 195 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 189 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 22:31:44,027 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1548 Valid, 1306 Invalid, 195 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 189 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 22:31:44,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140874 states. [2024-11-19 22:31:46,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140874 to 68924. [2024-11-19 22:31:46,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68924 states, 68923 states have (on average 1.4262147614004033) internal successors, (98299), 68923 states have internal predecessors, (98299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:31:46,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68924 states to 68924 states and 98299 transitions. [2024-11-19 22:31:46,420 INFO L78 Accepts]: Start accepts. Automaton has 68924 states and 98299 transitions. Word has length 103 [2024-11-19 22:31:46,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 22:31:46,421 INFO L471 AbstractCegarLoop]: Abstraction has 68924 states and 98299 transitions. [2024-11-19 22:31:46,421 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 9 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:31:46,421 INFO L276 IsEmpty]: Start isEmpty. Operand 68924 states and 98299 transitions. [2024-11-19 22:31:46,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-19 22:31:46,428 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 22:31:46,428 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 22:31:46,428 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-19 22:31:46,428 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 22:31:46,429 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 22:31:46,429 INFO L85 PathProgramCache]: Analyzing trace with hash 916095025, now seen corresponding path program 1 times [2024-11-19 22:31:46,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 22:31:46,429 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [557664796] [2024-11-19 22:31:46,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:31:46,430 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 22:31:46,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:31:46,652 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-19 22:31:46,652 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 22:31:46,652 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [557664796] [2024-11-19 22:31:46,652 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [557664796] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 22:31:46,653 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 22:31:46,653 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-19 22:31:46,653 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1757524375] [2024-11-19 22:31:46,653 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 22:31:46,653 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-19 22:31:46,653 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 22:31:46,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-19 22:31:46,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-19 22:31:46,654 INFO L87 Difference]: Start difference. First operand 68924 states and 98299 transitions. Second operand has 9 states, 9 states have (on average 10.0) internal successors, (90), 9 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:31:49,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 22:31:49,773 INFO L93 Difference]: Finished difference Result 171468 states and 246019 transitions. [2024-11-19 22:31:49,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-19 22:31:49,773 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.0) internal successors, (90), 9 states have internal predecessors, (90), 0 states have call successors, (0), 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 103 [2024-11-19 22:31:49,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 22:31:50,036 INFO L225 Difference]: With dead ends: 171468 [2024-11-19 22:31:50,037 INFO L226 Difference]: Without dead ends: 156170 [2024-11-19 22:31:50,071 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2024-11-19 22:31:50,071 INFO L432 NwaCegarLoop]: 226 mSDtfsCounter, 1439 mSDsluCounter, 1152 mSDsCounter, 0 mSdLazyCounter, 201 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1439 SdHoareTripleChecker+Valid, 1378 SdHoareTripleChecker+Invalid, 207 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 201 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 22:31:50,072 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1439 Valid, 1378 Invalid, 207 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 201 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 22:31:50,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156170 states. [2024-11-19 22:31:52,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156170 to 84220. [2024-11-19 22:31:52,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84220 states, 84219 states have (on average 1.4263171018416272) internal successors, (120123), 84219 states have internal predecessors, (120123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:31:53,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84220 states to 84220 states and 120123 transitions. [2024-11-19 22:31:53,158 INFO L78 Accepts]: Start accepts. Automaton has 84220 states and 120123 transitions. Word has length 103 [2024-11-19 22:31:53,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 22:31:53,163 INFO L471 AbstractCegarLoop]: Abstraction has 84220 states and 120123 transitions. [2024-11-19 22:31:53,163 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.0) internal successors, (90), 9 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:31:53,163 INFO L276 IsEmpty]: Start isEmpty. Operand 84220 states and 120123 transitions. [2024-11-19 22:31:53,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-19 22:31:53,179 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 22:31:53,179 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 22:31:53,179 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-19 22:31:53,179 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 22:31:53,179 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 22:31:53,179 INFO L85 PathProgramCache]: Analyzing trace with hash -864837839, now seen corresponding path program 1 times [2024-11-19 22:31:53,180 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 22:31:53,180 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [922534686] [2024-11-19 22:31:53,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:31:53,180 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 22:31:53,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:31:53,406 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-19 22:31:53,407 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 22:31:53,407 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [922534686] [2024-11-19 22:31:53,407 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [922534686] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 22:31:53,407 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 22:31:53,407 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-19 22:31:53,408 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1088267232] [2024-11-19 22:31:53,408 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 22:31:53,408 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-19 22:31:53,408 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 22:31:53,409 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-19 22:31:53,409 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-19 22:31:53,409 INFO L87 Difference]: Start difference. First operand 84220 states and 120123 transitions. Second operand has 9 states, 9 states have (on average 10.222222222222221) internal successors, (92), 9 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:31:56,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 22:31:56,761 INFO L93 Difference]: Finished difference Result 186764 states and 267843 transitions. [2024-11-19 22:31:56,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-19 22:31:56,761 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.222222222222221) internal successors, (92), 9 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 103 [2024-11-19 22:31:56,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 22:31:57,028 INFO L225 Difference]: With dead ends: 186764 [2024-11-19 22:31:57,028 INFO L226 Difference]: Without dead ends: 171466 [2024-11-19 22:31:57,060 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2024-11-19 22:31:57,060 INFO L432 NwaCegarLoop]: 232 mSDtfsCounter, 1272 mSDsluCounter, 1276 mSDsCounter, 0 mSdLazyCounter, 212 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1272 SdHoareTripleChecker+Valid, 1508 SdHoareTripleChecker+Invalid, 218 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 212 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-19 22:31:57,061 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1272 Valid, 1508 Invalid, 218 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 212 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-19 22:31:57,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171466 states. [2024-11-19 22:32:00,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171466 to 99516. [2024-11-19 22:32:00,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99516 states, 99515 states have (on average 1.4263879817112999) internal successors, (141947), 99515 states have internal predecessors, (141947), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:32:00,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99516 states to 99516 states and 141947 transitions. [2024-11-19 22:32:00,374 INFO L78 Accepts]: Start accepts. Automaton has 99516 states and 141947 transitions. Word has length 103 [2024-11-19 22:32:00,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 22:32:00,375 INFO L471 AbstractCegarLoop]: Abstraction has 99516 states and 141947 transitions. [2024-11-19 22:32:00,375 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.222222222222221) internal successors, (92), 9 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:32:00,375 INFO L276 IsEmpty]: Start isEmpty. Operand 99516 states and 141947 transitions. [2024-11-19 22:32:00,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-19 22:32:00,383 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 22:32:00,383 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 22:32:00,383 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-19 22:32:00,383 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 22:32:00,384 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 22:32:00,384 INFO L85 PathProgramCache]: Analyzing trace with hash -151487439, now seen corresponding path program 1 times [2024-11-19 22:32:00,384 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 22:32:00,384 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2063067126] [2024-11-19 22:32:00,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:32:00,385 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 22:32:00,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:32:00,618 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-19 22:32:00,619 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 22:32:00,619 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2063067126] [2024-11-19 22:32:00,619 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2063067126] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 22:32:00,619 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 22:32:00,619 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-19 22:32:00,619 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1736869154] [2024-11-19 22:32:00,620 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 22:32:00,621 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-19 22:32:00,621 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 22:32:00,621 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-19 22:32:00,622 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-19 22:32:00,622 INFO L87 Difference]: Start difference. First operand 99516 states and 141947 transitions. Second operand has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 9 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:32:04,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 22:32:04,639 INFO L93 Difference]: Finished difference Result 202060 states and 289667 transitions. [2024-11-19 22:32:04,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-19 22:32:04,639 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 9 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 103 [2024-11-19 22:32:04,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 22:32:04,950 INFO L225 Difference]: With dead ends: 202060 [2024-11-19 22:32:04,950 INFO L226 Difference]: Without dead ends: 186762 [2024-11-19 22:32:04,996 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2024-11-19 22:32:04,997 INFO L432 NwaCegarLoop]: 235 mSDtfsCounter, 1267 mSDsluCounter, 1439 mSDsCounter, 0 mSdLazyCounter, 233 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1267 SdHoareTripleChecker+Valid, 1674 SdHoareTripleChecker+Invalid, 239 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 233 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-19 22:32:04,997 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1267 Valid, 1674 Invalid, 239 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 233 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-19 22:32:05,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 186762 states. [2024-11-19 22:32:08,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 186762 to 114812. [2024-11-19 22:32:08,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114812 states, 114811 states have (on average 1.4264399752636943) internal successors, (163771), 114811 states have internal predecessors, (163771), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:32:08,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114812 states to 114812 states and 163771 transitions. [2024-11-19 22:32:08,912 INFO L78 Accepts]: Start accepts. Automaton has 114812 states and 163771 transitions. Word has length 103 [2024-11-19 22:32:08,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 22:32:08,913 INFO L471 AbstractCegarLoop]: Abstraction has 114812 states and 163771 transitions. [2024-11-19 22:32:08,913 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 9 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:32:08,913 INFO L276 IsEmpty]: Start isEmpty. Operand 114812 states and 163771 transitions. [2024-11-19 22:32:08,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-11-19 22:32:08,924 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 22:32:08,924 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 22:32:08,925 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-19 22:32:08,925 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 22:32:08,925 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 22:32:08,925 INFO L85 PathProgramCache]: Analyzing trace with hash -318040052, now seen corresponding path program 1 times [2024-11-19 22:32:08,926 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 22:32:08,926 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [284762608] [2024-11-19 22:32:08,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:32:08,926 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 22:32:08,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:32:09,133 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-19 22:32:09,134 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 22:32:09,134 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [284762608] [2024-11-19 22:32:09,134 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [284762608] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 22:32:09,134 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 22:32:09,134 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-19 22:32:09,134 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [700401962] [2024-11-19 22:32:09,135 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 22:32:09,135 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-19 22:32:09,135 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 22:32:09,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-19 22:32:09,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-19 22:32:09,136 INFO L87 Difference]: Start difference. First operand 114812 states and 163771 transitions. Second operand has 9 states, 9 states have (on average 11.555555555555555) internal successors, (104), 9 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:32:13,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 22:32:13,450 INFO L93 Difference]: Finished difference Result 208268 states and 298691 transitions. [2024-11-19 22:32:13,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-19 22:32:13,451 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.555555555555555) internal successors, (104), 9 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 105 [2024-11-19 22:32:13,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 22:32:13,856 INFO L225 Difference]: With dead ends: 208268 [2024-11-19 22:32:13,857 INFO L226 Difference]: Without dead ends: 197514 [2024-11-19 22:32:13,907 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2024-11-19 22:32:13,910 INFO L432 NwaCegarLoop]: 234 mSDtfsCounter, 1333 mSDsluCounter, 1451 mSDsCounter, 0 mSdLazyCounter, 216 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1333 SdHoareTripleChecker+Valid, 1685 SdHoareTripleChecker+Invalid, 222 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 216 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 22:32:13,911 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1333 Valid, 1685 Invalid, 222 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 216 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 22:32:14,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197514 states.