./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.8_overflow.ufo.UNBOUNDED.pals.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 84cfde4a Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/pals_lcr.8_overflow.ufo.UNBOUNDED.pals.c -s /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-clean/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 55ec916898aa0c4eb40269e81429fc0273ca07ec4caf7be0cd441cce0028ad79 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-84cfde4 [2024-10-11 03:25:17,009 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-11 03:25:17,093 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-11 03:25:17,098 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-11 03:25:17,101 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-11 03:25:17,130 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-11 03:25:17,131 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-11 03:25:17,131 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-11 03:25:17,132 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-11 03:25:17,132 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-11 03:25:17,133 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-11 03:25:17,133 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-11 03:25:17,134 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-11 03:25:17,134 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-11 03:25:17,134 INFO L153 SettingsManager]: * Use SBE=true [2024-10-11 03:25:17,135 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-11 03:25:17,135 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-11 03:25:17,135 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-11 03:25:17,136 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-11 03:25:17,136 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-11 03:25:17,139 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-11 03:25:17,139 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-11 03:25:17,140 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-11 03:25:17,140 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-11 03:25:17,140 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-11 03:25:17,141 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-11 03:25:17,141 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-11 03:25:17,141 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-11 03:25:17,141 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-11 03:25:17,142 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-11 03:25:17,142 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-11 03:25:17,142 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-11 03:25:17,143 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 03:25:17,143 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-11 03:25:17,147 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-11 03:25:17,147 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-11 03:25:17,148 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-11 03:25:17,148 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-11 03:25:17,148 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-11 03:25:17,149 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-11 03:25:17,149 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-11 03:25:17,149 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-11 03:25:17,150 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-clean/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 55ec916898aa0c4eb40269e81429fc0273ca07ec4caf7be0cd441cce0028ad79 [2024-10-11 03:25:17,392 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-11 03:25:17,418 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-11 03:25:17,423 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-11 03:25:17,424 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-11 03:25:17,425 INFO L274 PluginConnector]: CDTParser initialized [2024-10-11 03:25:17,426 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/pals_lcr.8_overflow.ufo.UNBOUNDED.pals.c [2024-10-11 03:25:18,938 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-11 03:25:19,188 INFO L384 CDTParser]: Found 1 translation units. [2024-10-11 03:25:19,189 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/pals_lcr.8_overflow.ufo.UNBOUNDED.pals.c [2024-10-11 03:25:19,204 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/20c286530/1b122a8abf434960ae609bddfa377952/FLAGd53669bca [2024-10-11 03:25:19,216 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/20c286530/1b122a8abf434960ae609bddfa377952 [2024-10-11 03:25:19,218 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-11 03:25:19,220 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-11 03:25:19,221 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-11 03:25:19,222 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-11 03:25:19,226 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-11 03:25:19,226 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 03:25:19" (1/1) ... [2024-10-11 03:25:19,227 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@458f8d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:25:19, skipping insertion in model container [2024-10-11 03:25:19,227 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 03:25:19" (1/1) ... [2024-10-11 03:25:19,268 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-11 03:25:19,552 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/pals_lcr.8_overflow.ufo.UNBOUNDED.pals.c[26555,26568] [2024-10-11 03:25:19,557 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 03:25:19,575 INFO L200 MainTranslator]: Completed pre-run [2024-10-11 03:25:19,645 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/pals_lcr.8_overflow.ufo.UNBOUNDED.pals.c[26555,26568] [2024-10-11 03:25:19,646 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 03:25:19,671 INFO L204 MainTranslator]: Completed translation [2024-10-11 03:25:19,672 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:25:19 WrapperNode [2024-10-11 03:25:19,672 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-11 03:25:19,673 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-11 03:25:19,673 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-11 03:25:19,673 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-11 03:25:19,680 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:25:19" (1/1) ... [2024-10-11 03:25:19,692 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:25:19" (1/1) ... [2024-10-11 03:25:19,728 INFO L138 Inliner]: procedures = 28, calls = 19, calls flagged for inlining = 14, calls inlined = 14, statements flattened = 528 [2024-10-11 03:25:19,729 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-11 03:25:19,730 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-11 03:25:19,730 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-11 03:25:19,730 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-11 03:25:19,742 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:25:19" (1/1) ... [2024-10-11 03:25:19,742 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:25:19" (1/1) ... [2024-10-11 03:25:19,746 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:25:19" (1/1) ... [2024-10-11 03:25:19,771 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-10-11 03:25:19,772 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:25:19" (1/1) ... [2024-10-11 03:25:19,772 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:25:19" (1/1) ... [2024-10-11 03:25:19,781 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:25:19" (1/1) ... [2024-10-11 03:25:19,787 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:25:19" (1/1) ... [2024-10-11 03:25:19,790 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:25:19" (1/1) ... [2024-10-11 03:25:19,792 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:25:19" (1/1) ... [2024-10-11 03:25:19,796 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-11 03:25:19,797 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-11 03:25:19,797 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-11 03:25:19,798 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-11 03:25:19,800 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:25:19" (1/1) ... [2024-10-11 03:25:19,813 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 03:25:19,830 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 03:25:19,847 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-11 03:25:19,850 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-11 03:25:19,902 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-11 03:25:19,903 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-11 03:25:19,904 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-11 03:25:19,904 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-11 03:25:20,044 INFO L238 CfgBuilder]: Building ICFG [2024-10-11 03:25:20,045 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-11 03:25:20,685 INFO L? ?]: Removed 55 outVars from TransFormulas that were not future-live. [2024-10-11 03:25:20,686 INFO L287 CfgBuilder]: Performing block encoding [2024-10-11 03:25:20,731 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-11 03:25:20,731 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-11 03:25:20,731 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 03:25:20 BoogieIcfgContainer [2024-10-11 03:25:20,731 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-11 03:25:20,734 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-11 03:25:20,734 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-11 03:25:20,737 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-11 03:25:20,738 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 03:25:19" (1/3) ... [2024-10-11 03:25:20,739 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74abd9d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 03:25:20, skipping insertion in model container [2024-10-11 03:25:20,739 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:25:19" (2/3) ... [2024-10-11 03:25:20,740 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74abd9d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 03:25:20, skipping insertion in model container [2024-10-11 03:25:20,740 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 03:25:20" (3/3) ... [2024-10-11 03:25:20,742 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.8_overflow.ufo.UNBOUNDED.pals.c [2024-10-11 03:25:20,757 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-11 03:25:20,758 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-11 03:25:20,825 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-11 03:25:20,832 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;@4b006d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-11 03:25:20,832 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-11 03:25:20,839 INFO L276 IsEmpty]: Start isEmpty. Operand has 126 states, 124 states have (on average 1.8306451612903225) internal successors, (227), 125 states have internal predecessors, (227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:25:20,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-10-11 03:25:20,848 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:25:20,850 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] [2024-10-11 03:25:20,851 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:25:20,857 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:25:20,858 INFO L85 PathProgramCache]: Analyzing trace with hash -675569035, now seen corresponding path program 1 times [2024-10-11 03:25:20,866 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:25:20,867 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [416325115] [2024-10-11 03:25:20,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:25:20,868 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:25:21,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:25:21,229 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:25:21,230 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:25:21,230 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [416325115] [2024-10-11 03:25:21,231 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [416325115] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:25:21,232 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:25:21,232 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 03:25:21,234 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1869338961] [2024-10-11 03:25:21,234 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:25:21,239 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-11 03:25:21,240 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:25:21,265 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-11 03:25:21,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-11 03:25:21,269 INFO L87 Difference]: Start difference. First operand has 126 states, 124 states have (on average 1.8306451612903225) internal successors, (227), 125 states have internal predecessors, (227), 0 states have call successors, (0), 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 13.0) internal successors, (26), 2 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:25:21,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:25:21,313 INFO L93 Difference]: Finished difference Result 186 states and 327 transitions. [2024-10-11 03:25:21,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-11 03:25:21,318 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 13.0) internal successors, (26), 2 states have internal predecessors, (26), 0 states have call successors, (0), 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 26 [2024-10-11 03:25:21,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:25:21,329 INFO L225 Difference]: With dead ends: 186 [2024-10-11 03:25:21,329 INFO L226 Difference]: Without dead ends: 124 [2024-10-11 03:25:21,332 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-11 03:25:21,338 INFO L432 NwaCegarLoop]: 219 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 219 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 03:25:21,340 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 219 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 03:25:21,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2024-10-11 03:25:21,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 124. [2024-10-11 03:25:21,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124 states, 123 states have (on average 1.8048780487804879) internal successors, (222), 123 states have internal predecessors, (222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:25:21,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 222 transitions. [2024-10-11 03:25:21,389 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 222 transitions. Word has length 26 [2024-10-11 03:25:21,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:25:21,390 INFO L471 AbstractCegarLoop]: Abstraction has 124 states and 222 transitions. [2024-10-11 03:25:21,390 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 13.0) internal successors, (26), 2 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:25:21,390 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 222 transitions. [2024-10-11 03:25:21,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-10-11 03:25:21,391 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:25:21,392 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] [2024-10-11 03:25:21,392 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-11 03:25:21,392 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:25:21,393 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:25:21,393 INFO L85 PathProgramCache]: Analyzing trace with hash 1813959927, now seen corresponding path program 1 times [2024-10-11 03:25:21,393 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:25:21,394 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [223490236] [2024-10-11 03:25:21,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:25:21,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:25:21,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:25:21,662 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:25:21,663 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:25:21,663 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [223490236] [2024-10-11 03:25:21,663 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [223490236] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:25:21,663 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:25:21,664 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 03:25:21,664 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [632862891] [2024-10-11 03:25:21,665 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:25:21,666 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 03:25:21,667 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:25:21,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 03:25:21,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 03:25:21,669 INFO L87 Difference]: Start difference. First operand 124 states and 222 transitions. Second operand has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:25:21,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:25:21,809 INFO L93 Difference]: Finished difference Result 186 states and 321 transitions. [2024-10-11 03:25:21,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 03:25:21,810 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 0 states have call successors, (0), 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 26 [2024-10-11 03:25:21,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:25:21,813 INFO L225 Difference]: With dead ends: 186 [2024-10-11 03:25:21,813 INFO L226 Difference]: Without dead ends: 124 [2024-10-11 03:25:21,814 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 03:25:21,816 INFO L432 NwaCegarLoop]: 219 mSDtfsCounter, 0 mSDsluCounter, 374 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 593 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 03:25:21,817 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 593 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 03:25:21,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2024-10-11 03:25:21,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 124. [2024-10-11 03:25:21,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124 states, 123 states have (on average 1.3089430894308942) internal successors, (161), 123 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:25:21,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 161 transitions. [2024-10-11 03:25:21,829 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 161 transitions. Word has length 26 [2024-10-11 03:25:21,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:25:21,830 INFO L471 AbstractCegarLoop]: Abstraction has 124 states and 161 transitions. [2024-10-11 03:25:21,830 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:25:21,830 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 161 transitions. [2024-10-11 03:25:21,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-10-11 03:25:21,833 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:25:21,833 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, 1, 1, 1, 1] [2024-10-11 03:25:21,833 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-11 03:25:21,833 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:25:21,834 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:25:21,834 INFO L85 PathProgramCache]: Analyzing trace with hash -2084592409, now seen corresponding path program 1 times [2024-10-11 03:25:21,834 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:25:21,835 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1277290698] [2024-10-11 03:25:21,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:25:21,835 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:25:21,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:25:22,376 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:25:22,376 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:25:22,377 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1277290698] [2024-10-11 03:25:22,377 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1277290698] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:25:22,377 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:25:22,377 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-10-11 03:25:22,377 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1770909608] [2024-10-11 03:25:22,377 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:25:22,378 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-11 03:25:22,378 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:25:22,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-11 03:25:22,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-10-11 03:25:22,382 INFO L87 Difference]: Start difference. First operand 124 states and 161 transitions. Second operand has 10 states, 10 states have (on average 8.6) internal successors, (86), 10 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:25:23,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:25:23,097 INFO L93 Difference]: Finished difference Result 1068 states and 1697 transitions. [2024-10-11 03:25:23,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-10-11 03:25:23,098 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 8.6) internal successors, (86), 10 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 86 [2024-10-11 03:25:23,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:25:23,107 INFO L225 Difference]: With dead ends: 1068 [2024-10-11 03:25:23,108 INFO L226 Difference]: Without dead ends: 1009 [2024-10-11 03:25:23,112 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=162, Invalid=344, Unknown=0, NotChecked=0, Total=506 [2024-10-11 03:25:23,113 INFO L432 NwaCegarLoop]: 154 mSDtfsCounter, 1835 mSDsluCounter, 4990 mSDsCounter, 0 mSdLazyCounter, 445 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1835 SdHoareTripleChecker+Valid, 5144 SdHoareTripleChecker+Invalid, 448 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 445 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-11 03:25:23,115 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1835 Valid, 5144 Invalid, 448 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 445 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-11 03:25:23,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1009 states. [2024-10-11 03:25:23,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1009 to 181. [2024-10-11 03:25:23,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 181 states, 180 states have (on average 1.4111111111111112) internal successors, (254), 180 states have internal predecessors, (254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:25:23,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 254 transitions. [2024-10-11 03:25:23,165 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 254 transitions. Word has length 86 [2024-10-11 03:25:23,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:25:23,165 INFO L471 AbstractCegarLoop]: Abstraction has 181 states and 254 transitions. [2024-10-11 03:25:23,165 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.6) internal successors, (86), 10 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:25:23,165 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 254 transitions. [2024-10-11 03:25:23,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-10-11 03:25:23,171 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:25:23,171 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, 1, 1, 1, 1, 1, 1] [2024-10-11 03:25:23,172 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-11 03:25:23,172 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:25:23,172 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:25:23,172 INFO L85 PathProgramCache]: Analyzing trace with hash 1695805079, now seen corresponding path program 1 times [2024-10-11 03:25:23,173 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:25:23,173 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1323101929] [2024-10-11 03:25:23,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:25:23,173 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:25:23,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:25:23,367 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:25:23,367 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:25:23,367 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1323101929] [2024-10-11 03:25:23,368 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1323101929] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:25:23,368 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:25:23,368 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 03:25:23,368 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2001609604] [2024-10-11 03:25:23,368 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:25:23,368 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 03:25:23,369 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:25:23,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 03:25:23,369 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 03:25:23,369 INFO L87 Difference]: Start difference. First operand 181 states and 254 transitions. Second operand has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:25:23,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:25:23,401 INFO L93 Difference]: Finished difference Result 402 states and 613 transitions. [2024-10-11 03:25:23,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 03:25:23,403 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 88 [2024-10-11 03:25:23,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:25:23,404 INFO L225 Difference]: With dead ends: 402 [2024-10-11 03:25:23,424 INFO L226 Difference]: Without dead ends: 286 [2024-10-11 03:25:23,427 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 03:25:23,428 INFO L432 NwaCegarLoop]: 156 mSDtfsCounter, 66 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 246 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 03:25:23,428 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 246 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 03:25:23,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 286 states. [2024-10-11 03:25:23,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 286 to 284. [2024-10-11 03:25:23,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 284 states, 283 states have (on average 1.4840989399293287) internal successors, (420), 283 states have internal predecessors, (420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:25:23,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 284 states to 284 states and 420 transitions. [2024-10-11 03:25:23,440 INFO L78 Accepts]: Start accepts. Automaton has 284 states and 420 transitions. Word has length 88 [2024-10-11 03:25:23,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:25:23,441 INFO L471 AbstractCegarLoop]: Abstraction has 284 states and 420 transitions. [2024-10-11 03:25:23,441 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:25:23,441 INFO L276 IsEmpty]: Start isEmpty. Operand 284 states and 420 transitions. [2024-10-11 03:25:23,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-10-11 03:25:23,444 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:25:23,444 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, 1, 1, 1, 1, 1, 1] [2024-10-11 03:25:23,444 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-11 03:25:23,444 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:25:23,444 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:25:23,445 INFO L85 PathProgramCache]: Analyzing trace with hash 1697950031, now seen corresponding path program 1 times [2024-10-11 03:25:23,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:25:23,445 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1957342309] [2024-10-11 03:25:23,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:25:23,445 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:25:23,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:25:24,102 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:25:24,104 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:25:24,104 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1957342309] [2024-10-11 03:25:24,105 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1957342309] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:25:24,105 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:25:24,105 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-10-11 03:25:24,105 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1701061394] [2024-10-11 03:25:24,105 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:25:24,105 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-11 03:25:24,106 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:25:24,108 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-11 03:25:24,109 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2024-10-11 03:25:24,109 INFO L87 Difference]: Start difference. First operand 284 states and 420 transitions. Second operand has 10 states, 10 states have (on average 8.8) internal successors, (88), 10 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:25:24,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:25:24,613 INFO L93 Difference]: Finished difference Result 505 states and 776 transitions. [2024-10-11 03:25:24,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-11 03:25:24,613 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 8.8) internal successors, (88), 10 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 88 [2024-10-11 03:25:24,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:25:24,615 INFO L225 Difference]: With dead ends: 505 [2024-10-11 03:25:24,615 INFO L226 Difference]: Without dead ends: 286 [2024-10-11 03:25:24,616 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=84, Invalid=156, Unknown=0, NotChecked=0, Total=240 [2024-10-11 03:25:24,616 INFO L432 NwaCegarLoop]: 148 mSDtfsCounter, 480 mSDsluCounter, 647 mSDsCounter, 0 mSdLazyCounter, 140 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 480 SdHoareTripleChecker+Valid, 795 SdHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 03:25:24,617 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [480 Valid, 795 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 140 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 03:25:24,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 286 states. [2024-10-11 03:25:24,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 286 to 284. [2024-10-11 03:25:24,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 284 states, 283 states have (on average 1.4770318021201414) internal successors, (418), 283 states have internal predecessors, (418), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:25:24,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 284 states to 284 states and 418 transitions. [2024-10-11 03:25:24,628 INFO L78 Accepts]: Start accepts. Automaton has 284 states and 418 transitions. Word has length 88 [2024-10-11 03:25:24,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:25:24,628 INFO L471 AbstractCegarLoop]: Abstraction has 284 states and 418 transitions. [2024-10-11 03:25:24,628 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.8) internal successors, (88), 10 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:25:24,629 INFO L276 IsEmpty]: Start isEmpty. Operand 284 states and 418 transitions. [2024-10-11 03:25:24,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-10-11 03:25:24,630 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:25:24,630 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, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:25:24,631 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-11 03:25:24,631 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:25:24,631 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:25:24,632 INFO L85 PathProgramCache]: Analyzing trace with hash 1082771095, now seen corresponding path program 1 times [2024-10-11 03:25:24,632 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:25:24,632 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [141362927] [2024-10-11 03:25:24,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:25:24,632 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:25:24,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:25:24,902 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:25:24,903 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:25:24,903 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [141362927] [2024-10-11 03:25:24,903 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [141362927] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:25:24,906 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:25:24,906 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 03:25:24,906 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [727551771] [2024-10-11 03:25:24,906 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:25:24,907 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 03:25:24,907 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:25:24,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 03:25:24,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 03:25:24,910 INFO L87 Difference]: Start difference. First operand 284 states and 418 transitions. Second operand has 4 states, 4 states have (on average 22.25) internal successors, (89), 4 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:25:24,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:25:24,942 INFO L93 Difference]: Finished difference Result 290 states and 425 transitions. [2024-10-11 03:25:24,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 03:25:24,943 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.25) internal successors, (89), 4 states have internal predecessors, (89), 0 states have call successors, (0), 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 89 [2024-10-11 03:25:24,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:25:24,944 INFO L225 Difference]: With dead ends: 290 [2024-10-11 03:25:24,947 INFO L226 Difference]: Without dead ends: 288 [2024-10-11 03:25:24,947 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 03:25:24,948 INFO L432 NwaCegarLoop]: 157 mSDtfsCounter, 0 mSDsluCounter, 306 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 463 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 03:25:24,949 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 463 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 03:25:24,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 288 states. [2024-10-11 03:25:24,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 288 to 288. [2024-10-11 03:25:24,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 288 states, 287 states have (on average 1.4668989547038327) internal successors, (421), 287 states have internal predecessors, (421), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:25:24,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 288 states to 288 states and 421 transitions. [2024-10-11 03:25:24,961 INFO L78 Accepts]: Start accepts. Automaton has 288 states and 421 transitions. Word has length 89 [2024-10-11 03:25:24,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:25:24,962 INFO L471 AbstractCegarLoop]: Abstraction has 288 states and 421 transitions. [2024-10-11 03:25:24,962 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.25) internal successors, (89), 4 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:25:24,963 INFO L276 IsEmpty]: Start isEmpty. Operand 288 states and 421 transitions. [2024-10-11 03:25:24,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-10-11 03:25:24,964 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:25:24,964 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, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:25:24,964 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-11 03:25:24,965 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:25:24,965 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:25:24,965 INFO L85 PathProgramCache]: Analyzing trace with hash 2123044207, now seen corresponding path program 1 times [2024-10-11 03:25:24,965 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:25:24,966 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1766145286] [2024-10-11 03:25:24,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:25:24,966 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:25:25,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:25:25,070 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:25:25,071 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:25:25,071 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1766145286] [2024-10-11 03:25:25,071 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1766145286] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:25:25,071 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:25:25,071 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 03:25:25,072 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1606172742] [2024-10-11 03:25:25,072 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:25:25,072 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 03:25:25,073 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:25:25,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 03:25:25,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 03:25:25,074 INFO L87 Difference]: Start difference. First operand 288 states and 421 transitions. Second operand has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 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) [2024-10-11 03:25:25,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:25:25,099 INFO L93 Difference]: Finished difference Result 522 states and 794 transitions. [2024-10-11 03:25:25,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 03:25:25,100 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 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 90 [2024-10-11 03:25:25,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:25:25,102 INFO L225 Difference]: With dead ends: 522 [2024-10-11 03:25:25,102 INFO L226 Difference]: Without dead ends: 402 [2024-10-11 03:25:25,102 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 03:25:25,103 INFO L432 NwaCegarLoop]: 238 mSDtfsCounter, 86 mSDsluCounter, 96 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 334 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 03:25:25,104 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 334 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 03:25:25,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 402 states. [2024-10-11 03:25:25,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 402 to 400. [2024-10-11 03:25:25,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 400 states, 399 states have (on average 1.4987468671679198) internal successors, (598), 399 states have internal predecessors, (598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:25:25,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 400 states to 400 states and 598 transitions. [2024-10-11 03:25:25,117 INFO L78 Accepts]: Start accepts. Automaton has 400 states and 598 transitions. Word has length 90 [2024-10-11 03:25:25,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:25:25,117 INFO L471 AbstractCegarLoop]: Abstraction has 400 states and 598 transitions. [2024-10-11 03:25:25,117 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 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) [2024-10-11 03:25:25,118 INFO L276 IsEmpty]: Start isEmpty. Operand 400 states and 598 transitions. [2024-10-11 03:25:25,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-10-11 03:25:25,119 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:25:25,119 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, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:25:25,119 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-11 03:25:25,119 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:25:25,120 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:25:25,120 INFO L85 PathProgramCache]: Analyzing trace with hash -2097310609, now seen corresponding path program 1 times [2024-10-11 03:25:25,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:25:25,120 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [75669016] [2024-10-11 03:25:25,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:25:25,120 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:25:25,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:25:25,225 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:25:25,225 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:25:25,227 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [75669016] [2024-10-11 03:25:25,227 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [75669016] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:25:25,227 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:25:25,228 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 03:25:25,230 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1386824727] [2024-10-11 03:25:25,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:25:25,230 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 03:25:25,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:25:25,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 03:25:25,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 03:25:25,231 INFO L87 Difference]: Start difference. First operand 400 states and 598 transitions. Second operand has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 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) [2024-10-11 03:25:25,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:25:25,268 INFO L93 Difference]: Finished difference Result 1042 states and 1618 transitions. [2024-10-11 03:25:25,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 03:25:25,269 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 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 90 [2024-10-11 03:25:25,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:25:25,272 INFO L225 Difference]: With dead ends: 1042 [2024-10-11 03:25:25,272 INFO L226 Difference]: Without dead ends: 709 [2024-10-11 03:25:25,273 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 03:25:25,273 INFO L432 NwaCegarLoop]: 240 mSDtfsCounter, 84 mSDsluCounter, 100 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 340 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 03:25:25,274 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 340 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 03:25:25,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 709 states. [2024-10-11 03:25:25,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 709 to 707. [2024-10-11 03:25:25,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 707 states, 706 states have (on average 1.5297450424929178) internal successors, (1080), 706 states have internal predecessors, (1080), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:25:25,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 707 states to 707 states and 1080 transitions. [2024-10-11 03:25:25,296 INFO L78 Accepts]: Start accepts. Automaton has 707 states and 1080 transitions. Word has length 90 [2024-10-11 03:25:25,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:25:25,296 INFO L471 AbstractCegarLoop]: Abstraction has 707 states and 1080 transitions. [2024-10-11 03:25:25,297 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 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) [2024-10-11 03:25:25,297 INFO L276 IsEmpty]: Start isEmpty. Operand 707 states and 1080 transitions. [2024-10-11 03:25:25,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-10-11 03:25:25,298 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:25:25,298 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, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:25:25,298 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-11 03:25:25,298 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:25:25,298 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:25:25,298 INFO L85 PathProgramCache]: Analyzing trace with hash -1341926545, now seen corresponding path program 1 times [2024-10-11 03:25:25,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:25:25,299 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1711560525] [2024-10-11 03:25:25,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:25:25,299 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:25:25,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:25:25,416 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:25:25,416 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:25:25,416 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1711560525] [2024-10-11 03:25:25,417 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1711560525] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:25:25,417 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:25:25,417 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 03:25:25,417 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1981748717] [2024-10-11 03:25:25,417 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:25:25,418 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 03:25:25,418 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:25:25,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 03:25:25,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 03:25:25,420 INFO L87 Difference]: Start difference. First operand 707 states and 1080 transitions. Second operand has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 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) [2024-10-11 03:25:25,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:25:25,474 INFO L93 Difference]: Finished difference Result 1939 states and 3022 transitions. [2024-10-11 03:25:25,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 03:25:25,475 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 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 90 [2024-10-11 03:25:25,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:25:25,483 INFO L225 Difference]: With dead ends: 1939 [2024-10-11 03:25:25,483 INFO L226 Difference]: Without dead ends: 1299 [2024-10-11 03:25:25,484 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 03:25:25,485 INFO L432 NwaCegarLoop]: 238 mSDtfsCounter, 82 mSDsluCounter, 104 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 342 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 03:25:25,485 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 342 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 03:25:25,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1299 states. [2024-10-11 03:25:25,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1299 to 1297. [2024-10-11 03:25:25,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1297 states, 1296 states have (on average 1.5401234567901234) internal successors, (1996), 1296 states have internal predecessors, (1996), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:25:25,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1297 states to 1297 states and 1996 transitions. [2024-10-11 03:25:25,532 INFO L78 Accepts]: Start accepts. Automaton has 1297 states and 1996 transitions. Word has length 90 [2024-10-11 03:25:25,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:25:25,532 INFO L471 AbstractCegarLoop]: Abstraction has 1297 states and 1996 transitions. [2024-10-11 03:25:25,532 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 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) [2024-10-11 03:25:25,532 INFO L276 IsEmpty]: Start isEmpty. Operand 1297 states and 1996 transitions. [2024-10-11 03:25:25,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-10-11 03:25:25,533 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:25:25,533 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, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:25:25,533 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-11 03:25:25,534 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:25:25,534 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:25:25,534 INFO L85 PathProgramCache]: Analyzing trace with hash -1752313233, now seen corresponding path program 1 times [2024-10-11 03:25:25,534 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:25:25,534 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1364318] [2024-10-11 03:25:25,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:25:25,535 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:25:25,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:25:25,626 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:25:25,627 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:25:25,627 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1364318] [2024-10-11 03:25:25,627 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1364318] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:25:25,627 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:25:25,627 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 03:25:25,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [144814411] [2024-10-11 03:25:25,627 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:25:25,628 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 03:25:25,628 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:25:25,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 03:25:25,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 03:25:25,628 INFO L87 Difference]: Start difference. First operand 1297 states and 1996 transitions. Second operand has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 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) [2024-10-11 03:25:25,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:25:25,688 INFO L93 Difference]: Finished difference Result 3661 states and 5686 transitions. [2024-10-11 03:25:25,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 03:25:25,689 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 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 90 [2024-10-11 03:25:25,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:25:25,698 INFO L225 Difference]: With dead ends: 3661 [2024-10-11 03:25:25,699 INFO L226 Difference]: Without dead ends: 2431 [2024-10-11 03:25:25,701 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 03:25:25,702 INFO L432 NwaCegarLoop]: 236 mSDtfsCounter, 80 mSDsluCounter, 108 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 344 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 03:25:25,703 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [80 Valid, 344 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 03:25:25,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2431 states. [2024-10-11 03:25:25,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2431 to 2429. [2024-10-11 03:25:25,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2429 states, 2428 states have (on average 1.5370675453047775) internal successors, (3732), 2428 states have internal predecessors, (3732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:25:25,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2429 states to 2429 states and 3732 transitions. [2024-10-11 03:25:25,775 INFO L78 Accepts]: Start accepts. Automaton has 2429 states and 3732 transitions. Word has length 90 [2024-10-11 03:25:25,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:25:25,775 INFO L471 AbstractCegarLoop]: Abstraction has 2429 states and 3732 transitions. [2024-10-11 03:25:25,775 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 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) [2024-10-11 03:25:25,776 INFO L276 IsEmpty]: Start isEmpty. Operand 2429 states and 3732 transitions. [2024-10-11 03:25:25,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-10-11 03:25:25,778 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:25:25,778 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, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:25:25,779 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-11 03:25:25,779 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:25:25,780 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:25:25,780 INFO L85 PathProgramCache]: Analyzing trace with hash -1980952465, now seen corresponding path program 1 times [2024-10-11 03:25:25,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:25:25,780 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [672331653] [2024-10-11 03:25:25,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:25:25,780 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:25:25,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:25:25,852 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:25:25,852 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:25:25,852 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [672331653] [2024-10-11 03:25:25,853 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [672331653] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:25:25,853 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:25:25,853 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 03:25:25,853 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [128197478] [2024-10-11 03:25:25,853 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:25:25,853 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 03:25:25,853 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:25:25,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 03:25:25,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 03:25:25,854 INFO L87 Difference]: Start difference. First operand 2429 states and 3732 transitions. Second operand has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 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) [2024-10-11 03:25:25,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:25:25,988 INFO L93 Difference]: Finished difference Result 6961 states and 10726 transitions. [2024-10-11 03:25:25,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 03:25:25,989 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 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 90 [2024-10-11 03:25:25,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:25:26,006 INFO L225 Difference]: With dead ends: 6961 [2024-10-11 03:25:26,006 INFO L226 Difference]: Without dead ends: 4599 [2024-10-11 03:25:26,012 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 03:25:26,013 INFO L432 NwaCegarLoop]: 224 mSDtfsCounter, 76 mSDsluCounter, 116 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 340 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 03:25:26,013 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 340 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 03:25:26,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4599 states. [2024-10-11 03:25:26,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4599 to 4597. [2024-10-11 03:25:26,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4597 states, 4596 states have (on average 1.525674499564839) internal successors, (7012), 4596 states have internal predecessors, (7012), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:25:26,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4597 states to 4597 states and 7012 transitions. [2024-10-11 03:25:26,165 INFO L78 Accepts]: Start accepts. Automaton has 4597 states and 7012 transitions. Word has length 90 [2024-10-11 03:25:26,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:25:26,166 INFO L471 AbstractCegarLoop]: Abstraction has 4597 states and 7012 transitions. [2024-10-11 03:25:26,166 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 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) [2024-10-11 03:25:26,166 INFO L276 IsEmpty]: Start isEmpty. Operand 4597 states and 7012 transitions. [2024-10-11 03:25:26,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-10-11 03:25:26,167 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:25:26,167 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, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:25:26,168 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-11 03:25:26,168 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:25:26,168 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:25:26,168 INFO L85 PathProgramCache]: Analyzing trace with hash 1688358767, now seen corresponding path program 1 times [2024-10-11 03:25:26,168 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:25:26,168 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2144583510] [2024-10-11 03:25:26,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:25:26,169 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:25:26,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:25:26,253 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:25:26,253 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:25:26,253 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2144583510] [2024-10-11 03:25:26,253 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2144583510] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:25:26,253 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:25:26,254 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 03:25:26,254 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [884377732] [2024-10-11 03:25:26,254 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:25:26,254 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 03:25:26,256 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:25:26,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 03:25:26,256 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 03:25:26,257 INFO L87 Difference]: Start difference. First operand 4597 states and 7012 transitions. Second operand has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 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) [2024-10-11 03:25:26,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:25:26,465 INFO L93 Difference]: Finished difference Result 13273 states and 20230 transitions. [2024-10-11 03:25:26,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 03:25:26,466 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 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 90 [2024-10-11 03:25:26,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:25:26,500 INFO L225 Difference]: With dead ends: 13273 [2024-10-11 03:25:26,502 INFO L226 Difference]: Without dead ends: 8743 [2024-10-11 03:25:26,510 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 03:25:26,511 INFO L432 NwaCegarLoop]: 222 mSDtfsCounter, 74 mSDsluCounter, 120 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 342 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 03:25:26,511 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 342 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 03:25:26,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8743 states. [2024-10-11 03:25:26,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8743 to 8741. [2024-10-11 03:25:26,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8741 states, 8740 states have (on average 1.508924485125858) internal successors, (13188), 8740 states have internal predecessors, (13188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:25:26,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8741 states to 8741 states and 13188 transitions. [2024-10-11 03:25:26,877 INFO L78 Accepts]: Start accepts. Automaton has 8741 states and 13188 transitions. Word has length 90 [2024-10-11 03:25:26,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:25:26,877 INFO L471 AbstractCegarLoop]: Abstraction has 8741 states and 13188 transitions. [2024-10-11 03:25:26,877 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 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) [2024-10-11 03:25:26,878 INFO L276 IsEmpty]: Start isEmpty. Operand 8741 states and 13188 transitions. [2024-10-11 03:25:26,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-10-11 03:25:26,878 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:25:26,879 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, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:25:26,879 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-11 03:25:26,879 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:25:26,879 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:25:26,879 INFO L85 PathProgramCache]: Analyzing trace with hash -1717875089, now seen corresponding path program 1 times [2024-10-11 03:25:26,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:25:26,880 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1984164941] [2024-10-11 03:25:26,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:25:26,880 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:25:26,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:25:26,982 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:25:26,983 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:25:26,984 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1984164941] [2024-10-11 03:25:26,984 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1984164941] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:25:26,984 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:25:26,984 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 03:25:26,984 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2113610698] [2024-10-11 03:25:26,984 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:25:26,985 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 03:25:26,985 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:25:26,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 03:25:26,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 03:25:26,986 INFO L87 Difference]: Start difference. First operand 8741 states and 13188 transitions. Second operand has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 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) [2024-10-11 03:25:27,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:25:27,447 INFO L93 Difference]: Finished difference Result 25321 states and 38086 transitions. [2024-10-11 03:25:27,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 03:25:27,447 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 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 90 [2024-10-11 03:25:27,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:25:27,499 INFO L225 Difference]: With dead ends: 25321 [2024-10-11 03:25:27,499 INFO L226 Difference]: Without dead ends: 16647 [2024-10-11 03:25:27,511 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 03:25:27,512 INFO L432 NwaCegarLoop]: 220 mSDtfsCounter, 72 mSDsluCounter, 124 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 344 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 03:25:27,512 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 344 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 03:25:27,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16647 states. [2024-10-11 03:25:28,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16647 to 16645. [2024-10-11 03:25:28,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16645 states, 16644 states have (on average 1.4883441480413362) internal successors, (24772), 16644 states have internal predecessors, (24772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:25:28,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16645 states to 16645 states and 24772 transitions. [2024-10-11 03:25:28,196 INFO L78 Accepts]: Start accepts. Automaton has 16645 states and 24772 transitions. Word has length 90 [2024-10-11 03:25:28,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:25:28,196 INFO L471 AbstractCegarLoop]: Abstraction has 16645 states and 24772 transitions. [2024-10-11 03:25:28,197 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 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) [2024-10-11 03:25:28,197 INFO L276 IsEmpty]: Start isEmpty. Operand 16645 states and 24772 transitions. [2024-10-11 03:25:28,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-10-11 03:25:28,197 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:25:28,198 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, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:25:28,198 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-11 03:25:28,198 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:25:28,199 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:25:28,199 INFO L85 PathProgramCache]: Analyzing trace with hash -2020896401, now seen corresponding path program 1 times [2024-10-11 03:25:28,199 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:25:28,199 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [527126616] [2024-10-11 03:25:28,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:25:28,199 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:25:28,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:25:28,297 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:25:28,297 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:25:28,297 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [527126616] [2024-10-11 03:25:28,297 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [527126616] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:25:28,297 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:25:28,298 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 03:25:28,298 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [363030928] [2024-10-11 03:25:28,298 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:25:28,298 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 03:25:28,298 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:25:28,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 03:25:28,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 03:25:28,299 INFO L87 Difference]: Start difference. First operand 16645 states and 24772 transitions. Second operand has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 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) [2024-10-11 03:25:29,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:25:29,045 INFO L93 Difference]: Finished difference Result 48265 states and 71494 transitions. [2024-10-11 03:25:29,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 03:25:29,046 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 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 90 [2024-10-11 03:25:29,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:25:29,130 INFO L225 Difference]: With dead ends: 48265 [2024-10-11 03:25:29,131 INFO L226 Difference]: Without dead ends: 31687 [2024-10-11 03:25:29,170 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 03:25:29,171 INFO L432 NwaCegarLoop]: 234 mSDtfsCounter, 78 mSDsluCounter, 112 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 346 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 03:25:29,171 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 346 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 03:25:29,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31687 states. [2024-10-11 03:25:30,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31687 to 31685. [2024-10-11 03:25:30,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31685 states, 31684 states have (on average 1.46458780457013) internal successors, (46404), 31684 states have internal predecessors, (46404), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:25:30,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31685 states to 31685 states and 46404 transitions. [2024-10-11 03:25:30,305 INFO L78 Accepts]: Start accepts. Automaton has 31685 states and 46404 transitions. Word has length 90 [2024-10-11 03:25:30,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:25:30,306 INFO L471 AbstractCegarLoop]: Abstraction has 31685 states and 46404 transitions. [2024-10-11 03:25:30,307 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 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) [2024-10-11 03:25:30,307 INFO L276 IsEmpty]: Start isEmpty. Operand 31685 states and 46404 transitions. [2024-10-11 03:25:30,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-10-11 03:25:30,314 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:25:30,315 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:25:30,315 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-11 03:25:30,315 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:25:30,316 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:25:30,316 INFO L85 PathProgramCache]: Analyzing trace with hash -1197016696, now seen corresponding path program 1 times [2024-10-11 03:25:30,316 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:25:30,316 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [617183573] [2024-10-11 03:25:30,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:25:30,316 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:25:30,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:25:30,747 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-11 03:25:30,748 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:25:30,748 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [617183573] [2024-10-11 03:25:30,748 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [617183573] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:25:30,748 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:25:30,748 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-10-11 03:25:30,749 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1913028751] [2024-10-11 03:25:30,749 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:25:30,749 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-11 03:25:30,749 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:25:30,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-11 03:25:30,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-10-11 03:25:30,750 INFO L87 Difference]: Start difference. First operand 31685 states and 46404 transitions. Second operand has 10 states, 10 states have (on average 11.3) internal successors, (113), 10 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:25:34,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:25:34,986 INFO L93 Difference]: Finished difference Result 281303 states and 412109 transitions. [2024-10-11 03:25:34,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-11 03:25:34,987 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 11.3) internal successors, (113), 10 states have internal predecessors, (113), 0 states have call successors, (0), 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 114 [2024-10-11 03:25:34,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:25:35,929 INFO L225 Difference]: With dead ends: 281303 [2024-10-11 03:25:35,929 INFO L226 Difference]: Without dead ends: 259285 [2024-10-11 03:25:36,020 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2024-10-11 03:25:36,021 INFO L432 NwaCegarLoop]: 254 mSDtfsCounter, 1619 mSDsluCounter, 2190 mSDsCounter, 0 mSdLazyCounter, 282 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1619 SdHoareTripleChecker+Valid, 2444 SdHoareTripleChecker+Invalid, 282 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 282 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-11 03:25:36,021 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1619 Valid, 2444 Invalid, 282 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 282 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-11 03:25:36,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 259285 states. [2024-10-11 03:25:39,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 259285 to 58565. [2024-10-11 03:25:39,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58565 states, 58564 states have (on average 1.4589850420053274) internal successors, (85444), 58564 states have internal predecessors, (85444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:25:39,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58565 states to 58565 states and 85444 transitions. [2024-10-11 03:25:39,808 INFO L78 Accepts]: Start accepts. Automaton has 58565 states and 85444 transitions. Word has length 114 [2024-10-11 03:25:39,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:25:39,808 INFO L471 AbstractCegarLoop]: Abstraction has 58565 states and 85444 transitions. [2024-10-11 03:25:39,808 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.3) internal successors, (113), 10 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:25:39,808 INFO L276 IsEmpty]: Start isEmpty. Operand 58565 states and 85444 transitions. [2024-10-11 03:25:39,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-10-11 03:25:39,816 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:25:39,816 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:25:39,817 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-11 03:25:39,817 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:25:39,817 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:25:39,817 INFO L85 PathProgramCache]: Analyzing trace with hash -1122404216, now seen corresponding path program 1 times [2024-10-11 03:25:39,817 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:25:39,818 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [133649108] [2024-10-11 03:25:39,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:25:39,818 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:25:39,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:25:40,132 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-11 03:25:40,133 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:25:40,133 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [133649108] [2024-10-11 03:25:40,133 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [133649108] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:25:40,135 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:25:40,136 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-10-11 03:25:40,136 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1706478714] [2024-10-11 03:25:40,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:25:40,136 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-11 03:25:40,137 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:25:40,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-11 03:25:40,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-10-11 03:25:40,138 INFO L87 Difference]: Start difference. First operand 58565 states and 85444 transitions. Second operand has 10 states, 10 states have (on average 11.1) internal successors, (111), 10 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:25:45,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:25:45,765 INFO L93 Difference]: Finished difference Result 312919 states and 458189 transitions. [2024-10-11 03:25:45,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-11 03:25:45,766 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 11.1) internal successors, (111), 10 states have internal predecessors, (111), 0 states have call successors, (0), 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 114 [2024-10-11 03:25:45,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:25:46,376 INFO L225 Difference]: With dead ends: 312919 [2024-10-11 03:25:46,376 INFO L226 Difference]: Without dead ends: 281301 [2024-10-11 03:25:46,464 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2024-10-11 03:25:46,465 INFO L432 NwaCegarLoop]: 253 mSDtfsCounter, 1619 mSDsluCounter, 2183 mSDsCounter, 0 mSdLazyCounter, 315 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1619 SdHoareTripleChecker+Valid, 2436 SdHoareTripleChecker+Invalid, 315 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 315 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-11 03:25:46,465 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1619 Valid, 2436 Invalid, 315 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 315 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-11 03:25:46,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 281301 states. [2024-10-11 03:25:50,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 281301 to 101189. [2024-10-11 03:25:51,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101189 states, 101188 states have (on average 1.4553899671897854) internal successors, (147268), 101188 states have internal predecessors, (147268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:25:51,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101189 states to 101189 states and 147268 transitions. [2024-10-11 03:25:51,377 INFO L78 Accepts]: Start accepts. Automaton has 101189 states and 147268 transitions. Word has length 114 [2024-10-11 03:25:51,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:25:51,378 INFO L471 AbstractCegarLoop]: Abstraction has 101189 states and 147268 transitions. [2024-10-11 03:25:51,378 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.1) internal successors, (111), 10 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:25:51,378 INFO L276 IsEmpty]: Start isEmpty. Operand 101189 states and 147268 transitions. [2024-10-11 03:25:51,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-10-11 03:25:51,390 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:25:51,390 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:25:51,390 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-10-11 03:25:51,391 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:25:51,391 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:25:51,391 INFO L85 PathProgramCache]: Analyzing trace with hash -367020152, now seen corresponding path program 1 times [2024-10-11 03:25:51,391 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:25:51,391 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1747874361] [2024-10-11 03:25:51,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:25:51,392 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:25:51,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:25:51,731 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-10-11 03:25:51,731 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:25:51,731 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1747874361] [2024-10-11 03:25:51,732 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1747874361] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:25:51,732 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:25:51,732 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-10-11 03:25:51,732 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [714981701] [2024-10-11 03:25:51,732 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:25:51,733 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-11 03:25:51,733 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:25:51,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-11 03:25:51,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-10-11 03:25:51,734 INFO L87 Difference]: Start difference. First operand 101189 states and 147268 transitions. Second operand has 10 states, 10 states have (on average 10.9) internal successors, (109), 10 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:25:58,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:25:58,403 INFO L93 Difference]: Finished difference Result 344535 states and 504141 transitions. [2024-10-11 03:25:58,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-11 03:25:58,403 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.9) internal successors, (109), 10 states have internal predecessors, (109), 0 states have call successors, (0), 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 114 [2024-10-11 03:25:58,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:25:59,027 INFO L225 Difference]: With dead ends: 344535 [2024-10-11 03:25:59,028 INFO L226 Difference]: Without dead ends: 312917 [2024-10-11 03:25:59,145 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2024-10-11 03:25:59,145 INFO L432 NwaCegarLoop]: 251 mSDtfsCounter, 1640 mSDsluCounter, 2108 mSDsCounter, 0 mSdLazyCounter, 307 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1640 SdHoareTripleChecker+Valid, 2359 SdHoareTripleChecker+Invalid, 307 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 307 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-11 03:25:59,146 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1640 Valid, 2359 Invalid, 307 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 307 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-11 03:25:59,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 312917 states. [2024-10-11 03:26:04,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 312917 to 132805. [2024-10-11 03:26:04,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 132805 states, 132804 states have (on average 1.454926056444083) internal successors, (193220), 132804 states have internal predecessors, (193220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:26:04,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132805 states to 132805 states and 193220 transitions. [2024-10-11 03:26:04,927 INFO L78 Accepts]: Start accepts. Automaton has 132805 states and 193220 transitions. Word has length 114 [2024-10-11 03:26:04,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:26:04,927 INFO L471 AbstractCegarLoop]: Abstraction has 132805 states and 193220 transitions. [2024-10-11 03:26:04,928 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.9) internal successors, (109), 10 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:26:04,928 INFO L276 IsEmpty]: Start isEmpty. Operand 132805 states and 193220 transitions. [2024-10-11 03:26:04,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-10-11 03:26:04,942 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:26:04,942 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:26:04,942 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-10-11 03:26:04,943 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:26:04,943 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:26:04,943 INFO L85 PathProgramCache]: Analyzing trace with hash -777406840, now seen corresponding path program 1 times [2024-10-11 03:26:04,943 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:26:04,943 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [822154733] [2024-10-11 03:26:04,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:26:04,944 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:26:04,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:26:05,297 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-10-11 03:26:05,297 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:26:05,297 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [822154733] [2024-10-11 03:26:05,297 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [822154733] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:26:05,298 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:26:05,298 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-10-11 03:26:05,298 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [754306269] [2024-10-11 03:26:05,298 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:26:05,298 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-11 03:26:05,299 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:26:05,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-11 03:26:05,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-10-11 03:26:05,300 INFO L87 Difference]: Start difference. First operand 132805 states and 193220 transitions. Second operand has 10 states, 10 states have (on average 10.7) internal successors, (107), 10 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:26:13,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:26:13,299 INFO L93 Difference]: Finished difference Result 376151 states and 550093 transitions. [2024-10-11 03:26:13,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-11 03:26:13,300 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.7) internal successors, (107), 10 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2024-10-11 03:26:13,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:26:13,952 INFO L225 Difference]: With dead ends: 376151 [2024-10-11 03:26:13,952 INFO L226 Difference]: Without dead ends: 344533 [2024-10-11 03:26:14,051 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2024-10-11 03:26:14,052 INFO L432 NwaCegarLoop]: 249 mSDtfsCounter, 1729 mSDsluCounter, 1998 mSDsCounter, 0 mSdLazyCounter, 260 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1729 SdHoareTripleChecker+Valid, 2247 SdHoareTripleChecker+Invalid, 260 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 260 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-11 03:26:14,052 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1729 Valid, 2247 Invalid, 260 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 260 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-11 03:26:14,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 344533 states.