./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_QF_BV_vlunc.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version fca748b1 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_QF_BV_vlunc.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash f9c847a826e86c06ca90730b1e3bd09118dbfcc8c7c9aa6dc001687e12e32563 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dd.update-z3-fca748b-m [2024-11-20 02:07:50,291 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-20 02:07:50,343 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-20 02:07:50,347 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-20 02:07:50,347 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-20 02:07:50,376 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-20 02:07:50,376 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-20 02:07:50,377 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-20 02:07:50,377 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-20 02:07:50,380 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-20 02:07:50,380 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-20 02:07:50,380 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-20 02:07:50,381 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-20 02:07:50,381 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-20 02:07:50,381 INFO L153 SettingsManager]: * Use SBE=true [2024-11-20 02:07:50,381 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-20 02:07:50,382 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-20 02:07:50,383 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-20 02:07:50,383 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-20 02:07:50,383 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-20 02:07:50,383 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-20 02:07:50,384 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-20 02:07:50,384 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-20 02:07:50,384 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-20 02:07:50,384 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-20 02:07:50,384 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-20 02:07:50,385 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-20 02:07:50,385 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-20 02:07:50,385 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-20 02:07:50,385 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 02:07:50,385 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-20 02:07:50,385 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-20 02:07:50,385 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-20 02:07:50,386 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-20 02:07:50,386 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-20 02:07:50,386 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-20 02:07:50,386 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-20 02:07:50,386 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-20 02:07:50,386 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-20 02:07:50,386 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f9c847a826e86c06ca90730b1e3bd09118dbfcc8c7c9aa6dc001687e12e32563 [2024-11-20 02:07:50,588 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-20 02:07:50,609 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-20 02:07:50,612 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-20 02:07:50,613 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-20 02:07:50,613 INFO L274 PluginConnector]: CDTParser initialized [2024-11-20 02:07:50,615 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_QF_BV_vlunc.c [2024-11-20 02:07:51,782 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-20 02:07:51,953 INFO L384 CDTParser]: Found 1 translation units. [2024-11-20 02:07:51,957 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_QF_BV_vlunc.c [2024-11-20 02:07:51,966 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1d6dd5294/67787725d7594b00b473499752c71eea/FLAG3231dd580 [2024-11-20 02:07:51,980 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1d6dd5294/67787725d7594b00b473499752c71eea [2024-11-20 02:07:51,984 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-20 02:07:51,985 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-20 02:07:51,989 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-20 02:07:51,989 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-20 02:07:51,993 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-20 02:07:51,993 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 02:07:51" (1/1) ... [2024-11-20 02:07:51,995 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5d9b767d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:07:51, skipping insertion in model container [2024-11-20 02:07:51,995 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 02:07:51" (1/1) ... [2024-11-20 02:07:52,022 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-20 02:07:52,159 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_QF_BV_vlunc.c[1255,1268] [2024-11-20 02:07:52,225 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 02:07:52,235 INFO L200 MainTranslator]: Completed pre-run [2024-11-20 02:07:52,245 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_QF_BV_vlunc.c[1255,1268] [2024-11-20 02:07:52,303 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 02:07:52,321 INFO L204 MainTranslator]: Completed translation [2024-11-20 02:07:52,321 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:07:52 WrapperNode [2024-11-20 02:07:52,322 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-20 02:07:52,323 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-20 02:07:52,323 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-20 02:07:52,323 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-20 02:07:52,328 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:07:52" (1/1) ... [2024-11-20 02:07:52,346 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:07:52" (1/1) ... [2024-11-20 02:07:52,411 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 517 [2024-11-20 02:07:52,411 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-20 02:07:52,412 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-20 02:07:52,412 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-20 02:07:52,412 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-20 02:07:52,421 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:07:52" (1/1) ... [2024-11-20 02:07:52,421 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:07:52" (1/1) ... [2024-11-20 02:07:52,437 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:07:52" (1/1) ... [2024-11-20 02:07:52,505 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-20 02:07:52,506 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:07:52" (1/1) ... [2024-11-20 02:07:52,506 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:07:52" (1/1) ... [2024-11-20 02:07:52,542 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:07:52" (1/1) ... [2024-11-20 02:07:52,552 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:07:52" (1/1) ... [2024-11-20 02:07:52,561 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:07:52" (1/1) ... [2024-11-20 02:07:52,568 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:07:52" (1/1) ... [2024-11-20 02:07:52,579 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-20 02:07:52,582 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-20 02:07:52,582 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-20 02:07:52,583 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-20 02:07:52,583 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:07:52" (1/1) ... [2024-11-20 02:07:52,587 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 02:07:52,596 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 02:07:52,608 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-20 02:07:52,610 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-20 02:07:52,645 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-20 02:07:52,645 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-20 02:07:52,645 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-20 02:07:52,645 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-20 02:07:52,729 INFO L238 CfgBuilder]: Building ICFG [2024-11-20 02:07:52,730 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-20 02:07:53,237 INFO L? ?]: Removed 314 outVars from TransFormulas that were not future-live. [2024-11-20 02:07:53,238 INFO L287 CfgBuilder]: Performing block encoding [2024-11-20 02:07:53,251 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-20 02:07:53,252 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-20 02:07:53,252 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 02:07:53 BoogieIcfgContainer [2024-11-20 02:07:53,252 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-20 02:07:53,254 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-20 02:07:53,255 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-20 02:07:53,257 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-20 02:07:53,257 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 02:07:51" (1/3) ... [2024-11-20 02:07:53,258 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@568331c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 02:07:53, skipping insertion in model container [2024-11-20 02:07:53,258 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:07:52" (2/3) ... [2024-11-20 02:07:53,258 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@568331c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 02:07:53, skipping insertion in model container [2024-11-20 02:07:53,258 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 02:07:53" (3/3) ... [2024-11-20 02:07:53,259 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.vis_QF_BV_vlunc.c [2024-11-20 02:07:53,271 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-20 02:07:53,271 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-20 02:07:53,314 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-20 02:07:53,318 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;@722c2209, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-20 02:07:53,318 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-20 02:07:53,324 INFO L276 IsEmpty]: Start isEmpty. Operand has 130 states, 128 states have (on average 1.4921875) internal successors, (191), 129 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:07:53,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2024-11-20 02:07:53,330 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 02:07:53,330 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 02:07:53,331 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 02:07:53,334 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 02:07:53,334 INFO L85 PathProgramCache]: Analyzing trace with hash -1161288925, now seen corresponding path program 1 times [2024-11-20 02:07:53,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 02:07:53,340 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2131459639] [2024-11-20 02:07:53,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 02:07:53,341 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 02:07:53,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:07:53,832 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 02:07:53,833 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 02:07:53,833 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2131459639] [2024-11-20 02:07:53,834 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2131459639] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 02:07:53,834 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 02:07:53,834 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-20 02:07:53,836 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [249451110] [2024-11-20 02:07:53,836 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 02:07:53,840 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 02:07:53,840 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 02:07:53,862 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 02:07:53,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 02:07:53,865 INFO L87 Difference]: Start difference. First operand has 130 states, 128 states have (on average 1.4921875) internal successors, (191), 129 states have internal predecessors, (191), 0 states have call successors, (0), 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 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:07:53,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 02:07:53,915 INFO L93 Difference]: Finished difference Result 233 states and 345 transitions. [2024-11-20 02:07:53,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 02:07:53,917 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 0 states have call successors, (0), 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 45 [2024-11-20 02:07:53,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 02:07:53,925 INFO L225 Difference]: With dead ends: 233 [2024-11-20 02:07:53,925 INFO L226 Difference]: Without dead ends: 129 [2024-11-20 02:07:53,928 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 [2024-11-20 02:07:53,932 INFO L432 NwaCegarLoop]: 185 mSDtfsCounter, 0 mSDsluCounter, 364 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 549 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-20 02:07:53,933 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 549 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 02:07:53,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2024-11-20 02:07:53,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 129. [2024-11-20 02:07:53,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129 states, 128 states have (on average 1.4765625) internal successors, (189), 128 states have internal predecessors, (189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:07:53,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 189 transitions. [2024-11-20 02:07:53,974 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 189 transitions. Word has length 45 [2024-11-20 02:07:53,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 02:07:53,974 INFO L471 AbstractCegarLoop]: Abstraction has 129 states and 189 transitions. [2024-11-20 02:07:53,975 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:07:53,975 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 189 transitions. [2024-11-20 02:07:53,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2024-11-20 02:07:53,978 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 02:07:53,978 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] [2024-11-20 02:07:53,978 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-20 02:07:53,979 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 02:07:53,979 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 02:07:53,980 INFO L85 PathProgramCache]: Analyzing trace with hash -1638522894, now seen corresponding path program 1 times [2024-11-20 02:07:53,980 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 02:07:53,981 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [735875265] [2024-11-20 02:07:53,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 02:07:53,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 02:07:54,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:07:54,160 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 02:07:54,161 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 02:07:54,161 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [735875265] [2024-11-20 02:07:54,161 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [735875265] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 02:07:54,161 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 02:07:54,161 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-20 02:07:54,161 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [371450885] [2024-11-20 02:07:54,162 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 02:07:54,163 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 02:07:54,163 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 02:07:54,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 02:07:54,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 02:07:54,164 INFO L87 Difference]: Start difference. First operand 129 states and 189 transitions. Second operand has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:07:54,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 02:07:54,206 INFO L93 Difference]: Finished difference Result 234 states and 343 transitions. [2024-11-20 02:07:54,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 02:07:54,209 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 0 states have call successors, (0), 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 46 [2024-11-20 02:07:54,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 02:07:54,210 INFO L225 Difference]: With dead ends: 234 [2024-11-20 02:07:54,210 INFO L226 Difference]: Without dead ends: 131 [2024-11-20 02:07:54,211 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 02:07:54,212 INFO L432 NwaCegarLoop]: 185 mSDtfsCounter, 0 mSDsluCounter, 360 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 545 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-20 02:07:54,212 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 545 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 02:07:54,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2024-11-20 02:07:54,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 131. [2024-11-20 02:07:54,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 131 states, 130 states have (on average 1.4692307692307693) internal successors, (191), 130 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:07:54,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 191 transitions. [2024-11-20 02:07:54,224 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 191 transitions. Word has length 46 [2024-11-20 02:07:54,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 02:07:54,225 INFO L471 AbstractCegarLoop]: Abstraction has 131 states and 191 transitions. [2024-11-20 02:07:54,225 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:07:54,225 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 191 transitions. [2024-11-20 02:07:54,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2024-11-20 02:07:54,226 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 02:07:54,226 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] [2024-11-20 02:07:54,227 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-20 02:07:54,227 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 02:07:54,227 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 02:07:54,228 INFO L85 PathProgramCache]: Analyzing trace with hash -352567844, now seen corresponding path program 1 times [2024-11-20 02:07:54,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 02:07:54,228 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1799504921] [2024-11-20 02:07:54,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 02:07:54,228 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 02:07:54,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:07:54,536 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 02:07:54,537 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 02:07:54,537 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1799504921] [2024-11-20 02:07:54,537 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1799504921] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 02:07:54,538 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 02:07:54,538 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-20 02:07:54,538 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [132511175] [2024-11-20 02:07:54,538 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 02:07:54,539 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-20 02:07:54,539 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 02:07:54,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-20 02:07:54,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-20 02:07:54,540 INFO L87 Difference]: Start difference. First operand 131 states and 191 transitions. Second operand has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:07:54,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 02:07:54,599 INFO L93 Difference]: Finished difference Result 241 states and 352 transitions. [2024-11-20 02:07:54,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-20 02:07:54,600 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 0 states have call successors, (0), 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 47 [2024-11-20 02:07:54,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 02:07:54,604 INFO L225 Difference]: With dead ends: 241 [2024-11-20 02:07:54,604 INFO L226 Difference]: Without dead ends: 136 [2024-11-20 02:07:54,605 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-20 02:07:54,605 INFO L432 NwaCegarLoop]: 181 mSDtfsCounter, 1 mSDsluCounter, 708 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 889 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-20 02:07:54,608 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 889 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-20 02:07:54,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2024-11-20 02:07:54,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 136. [2024-11-20 02:07:54,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 136 states, 135 states have (on average 1.4592592592592593) internal successors, (197), 135 states have internal predecessors, (197), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:07:54,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 197 transitions. [2024-11-20 02:07:54,615 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 197 transitions. Word has length 47 [2024-11-20 02:07:54,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 02:07:54,615 INFO L471 AbstractCegarLoop]: Abstraction has 136 states and 197 transitions. [2024-11-20 02:07:54,616 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:07:54,616 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 197 transitions. [2024-11-20 02:07:54,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2024-11-20 02:07:54,617 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 02:07:54,617 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] [2024-11-20 02:07:54,617 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-20 02:07:54,617 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 02:07:54,618 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 02:07:54,618 INFO L85 PathProgramCache]: Analyzing trace with hash -1430781511, now seen corresponding path program 1 times [2024-11-20 02:07:54,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 02:07:54,618 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [836508091] [2024-11-20 02:07:54,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 02:07:54,618 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 02:07:54,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:07:54,785 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 02:07:54,786 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 02:07:54,786 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [836508091] [2024-11-20 02:07:54,786 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [836508091] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 02:07:54,786 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 02:07:54,786 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-20 02:07:54,786 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2117610229] [2024-11-20 02:07:54,787 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 02:07:54,787 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-20 02:07:54,787 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 02:07:54,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-20 02:07:54,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-20 02:07:54,788 INFO L87 Difference]: Start difference. First operand 136 states and 197 transitions. Second operand has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 7 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:07:54,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 02:07:54,837 INFO L93 Difference]: Finished difference Result 257 states and 373 transitions. [2024-11-20 02:07:54,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-20 02:07:54,838 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 7 states have internal predecessors, (48), 0 states have call successors, (0), 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 48 [2024-11-20 02:07:54,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 02:07:54,838 INFO L225 Difference]: With dead ends: 257 [2024-11-20 02:07:54,840 INFO L226 Difference]: Without dead ends: 147 [2024-11-20 02:07:54,841 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-20 02:07:54,841 INFO L432 NwaCegarLoop]: 180 mSDtfsCounter, 5 mSDsluCounter, 883 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 1063 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-20 02:07:54,842 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 1063 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 02:07:54,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2024-11-20 02:07:54,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 147. [2024-11-20 02:07:54,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 147 states, 146 states have (on average 1.4452054794520548) internal successors, (211), 146 states have internal predecessors, (211), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:07:54,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 211 transitions. [2024-11-20 02:07:54,851 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 211 transitions. Word has length 48 [2024-11-20 02:07:54,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 02:07:54,851 INFO L471 AbstractCegarLoop]: Abstraction has 147 states and 211 transitions. [2024-11-20 02:07:54,851 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 7 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:07:54,852 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 211 transitions. [2024-11-20 02:07:54,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2024-11-20 02:07:54,854 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 02:07:54,854 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] [2024-11-20 02:07:54,854 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-20 02:07:54,855 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 02:07:54,855 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 02:07:54,855 INFO L85 PathProgramCache]: Analyzing trace with hash -1285611392, now seen corresponding path program 1 times [2024-11-20 02:07:54,855 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 02:07:54,855 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1332140374] [2024-11-20 02:07:54,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 02:07:54,856 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 02:07:54,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:07:54,964 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 02:07:54,965 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 02:07:54,965 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1332140374] [2024-11-20 02:07:54,965 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1332140374] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 02:07:54,965 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 02:07:54,965 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 02:07:54,965 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1808274878] [2024-11-20 02:07:54,965 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 02:07:54,966 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 02:07:54,966 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 02:07:54,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 02:07:54,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-20 02:07:54,968 INFO L87 Difference]: Start difference. First operand 147 states and 211 transitions. Second operand has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:07:55,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 02:07:55,021 INFO L93 Difference]: Finished difference Result 363 states and 519 transitions. [2024-11-20 02:07:55,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 02:07:55,022 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 0 states have call successors, (0), 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 48 [2024-11-20 02:07:55,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 02:07:55,023 INFO L225 Difference]: With dead ends: 363 [2024-11-20 02:07:55,023 INFO L226 Difference]: Without dead ends: 242 [2024-11-20 02:07:55,024 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-20 02:07:55,024 INFO L432 NwaCegarLoop]: 178 mSDtfsCounter, 391 mSDsluCounter, 350 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 391 SdHoareTripleChecker+Valid, 528 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-20 02:07:55,024 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [391 Valid, 528 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 02:07:55,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242 states. [2024-11-20 02:07:55,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242 to 194. [2024-11-20 02:07:55,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 194 states, 193 states have (on average 1.4455958549222798) internal successors, (279), 193 states have internal predecessors, (279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:07:55,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 279 transitions. [2024-11-20 02:07:55,038 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 279 transitions. Word has length 48 [2024-11-20 02:07:55,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 02:07:55,038 INFO L471 AbstractCegarLoop]: Abstraction has 194 states and 279 transitions. [2024-11-20 02:07:55,039 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:07:55,039 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 279 transitions. [2024-11-20 02:07:55,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2024-11-20 02:07:55,040 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 02:07:55,040 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] [2024-11-20 02:07:55,040 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-20 02:07:55,040 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 02:07:55,043 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 02:07:55,043 INFO L85 PathProgramCache]: Analyzing trace with hash -1420291833, now seen corresponding path program 1 times [2024-11-20 02:07:55,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 02:07:55,043 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2008716049] [2024-11-20 02:07:55,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 02:07:55,044 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 02:07:55,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:07:55,155 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 02:07:55,155 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 02:07:55,155 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2008716049] [2024-11-20 02:07:55,155 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2008716049] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 02:07:55,155 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 02:07:55,155 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 02:07:55,156 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1502760483] [2024-11-20 02:07:55,156 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 02:07:55,156 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 02:07:55,156 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 02:07:55,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 02:07:55,157 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-20 02:07:55,157 INFO L87 Difference]: Start difference. First operand 194 states and 279 transitions. Second operand has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:07:55,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 02:07:55,203 INFO L93 Difference]: Finished difference Result 357 states and 507 transitions. [2024-11-20 02:07:55,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 02:07:55,203 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 0 states have call successors, (0), 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 49 [2024-11-20 02:07:55,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 02:07:55,204 INFO L225 Difference]: With dead ends: 357 [2024-11-20 02:07:55,204 INFO L226 Difference]: Without dead ends: 228 [2024-11-20 02:07:55,205 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-20 02:07:55,206 INFO L432 NwaCegarLoop]: 178 mSDtfsCounter, 359 mSDsluCounter, 350 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 359 SdHoareTripleChecker+Valid, 528 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-20 02:07:55,206 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [359 Valid, 528 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 02:07:55,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 228 states. [2024-11-20 02:07:55,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 228 to 188. [2024-11-20 02:07:55,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 188 states, 187 states have (on average 1.4385026737967914) internal successors, (269), 187 states have internal predecessors, (269), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:07:55,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 269 transitions. [2024-11-20 02:07:55,219 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 269 transitions. Word has length 49 [2024-11-20 02:07:55,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 02:07:55,220 INFO L471 AbstractCegarLoop]: Abstraction has 188 states and 269 transitions. [2024-11-20 02:07:55,220 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:07:55,220 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 269 transitions. [2024-11-20 02:07:55,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2024-11-20 02:07:55,221 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 02:07:55,221 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] [2024-11-20 02:07:55,221 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-20 02:07:55,221 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 02:07:55,221 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 02:07:55,221 INFO L85 PathProgramCache]: Analyzing trace with hash -559412370, now seen corresponding path program 1 times [2024-11-20 02:07:55,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 02:07:55,222 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [434796132] [2024-11-20 02:07:55,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 02:07:55,222 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 02:07:55,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:07:55,355 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 02:07:55,356 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 02:07:55,356 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [434796132] [2024-11-20 02:07:55,356 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [434796132] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 02:07:55,356 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 02:07:55,356 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-20 02:07:55,356 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1063379843] [2024-11-20 02:07:55,356 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 02:07:55,357 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-20 02:07:55,357 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 02:07:55,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-20 02:07:55,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-20 02:07:55,358 INFO L87 Difference]: Start difference. First operand 188 states and 269 transitions. Second operand has 7 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:07:55,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 02:07:55,403 INFO L93 Difference]: Finished difference Result 337 states and 480 transitions. [2024-11-20 02:07:55,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-20 02:07:55,403 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 0 states have call successors, (0), 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 49 [2024-11-20 02:07:55,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 02:07:55,404 INFO L225 Difference]: With dead ends: 337 [2024-11-20 02:07:55,404 INFO L226 Difference]: Without dead ends: 206 [2024-11-20 02:07:55,405 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-20 02:07:55,405 INFO L432 NwaCegarLoop]: 180 mSDtfsCounter, 5 mSDsluCounter, 883 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 1063 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-20 02:07:55,407 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 1063 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 02:07:55,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states. [2024-11-20 02:07:55,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 206. [2024-11-20 02:07:55,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 206 states, 205 states have (on average 1.4195121951219511) internal successors, (291), 205 states have internal predecessors, (291), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:07:55,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 206 states and 291 transitions. [2024-11-20 02:07:55,414 INFO L78 Accepts]: Start accepts. Automaton has 206 states and 291 transitions. Word has length 49 [2024-11-20 02:07:55,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 02:07:55,415 INFO L471 AbstractCegarLoop]: Abstraction has 206 states and 291 transitions. [2024-11-20 02:07:55,415 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:07:55,415 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 291 transitions. [2024-11-20 02:07:55,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2024-11-20 02:07:55,416 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 02:07:55,417 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] [2024-11-20 02:07:55,417 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-20 02:07:55,418 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 02:07:55,418 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 02:07:55,418 INFO L85 PathProgramCache]: Analyzing trace with hash -1444590169, now seen corresponding path program 1 times [2024-11-20 02:07:55,419 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 02:07:55,419 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [147055712] [2024-11-20 02:07:55,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 02:07:55,419 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 02:07:55,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:07:55,544 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 02:07:55,545 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 02:07:55,545 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [147055712] [2024-11-20 02:07:55,545 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [147055712] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 02:07:55,545 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 02:07:55,545 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-20 02:07:55,545 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1360107725] [2024-11-20 02:07:55,545 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 02:07:55,545 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-20 02:07:55,545 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 02:07:55,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-20 02:07:55,546 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-20 02:07:55,546 INFO L87 Difference]: Start difference. First operand 206 states and 291 transitions. Second operand has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:07:55,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 02:07:55,586 INFO L93 Difference]: Finished difference Result 385 states and 543 transitions. [2024-11-20 02:07:55,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-20 02:07:55,586 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 0 states have call successors, (0), 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 50 [2024-11-20 02:07:55,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 02:07:55,587 INFO L225 Difference]: With dead ends: 385 [2024-11-20 02:07:55,587 INFO L226 Difference]: Without dead ends: 228 [2024-11-20 02:07:55,588 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-20 02:07:55,588 INFO L432 NwaCegarLoop]: 180 mSDtfsCounter, 5 mSDsluCounter, 883 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 1063 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-20 02:07:55,589 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 1063 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 02:07:55,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 228 states. [2024-11-20 02:07:55,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 228 to 228. [2024-11-20 02:07:55,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 228 states, 227 states have (on average 1.4052863436123348) internal successors, (319), 227 states have internal predecessors, (319), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:07:55,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 228 states and 319 transitions. [2024-11-20 02:07:55,595 INFO L78 Accepts]: Start accepts. Automaton has 228 states and 319 transitions. Word has length 50 [2024-11-20 02:07:55,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 02:07:55,596 INFO L471 AbstractCegarLoop]: Abstraction has 228 states and 319 transitions. [2024-11-20 02:07:55,596 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:07:55,596 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states and 319 transitions. [2024-11-20 02:07:55,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2024-11-20 02:07:55,597 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 02:07:55,598 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] [2024-11-20 02:07:55,598 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-20 02:07:55,598 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 02:07:55,598 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 02:07:55,598 INFO L85 PathProgramCache]: Analyzing trace with hash -662315090, now seen corresponding path program 1 times [2024-11-20 02:07:55,598 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 02:07:55,599 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1810911306] [2024-11-20 02:07:55,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 02:07:55,599 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 02:07:55,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:07:55,697 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 02:07:55,699 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 02:07:55,700 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1810911306] [2024-11-20 02:07:55,700 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1810911306] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 02:07:55,700 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 02:07:55,700 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 02:07:55,700 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1907480650] [2024-11-20 02:07:55,700 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 02:07:55,700 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 02:07:55,700 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 02:07:55,701 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 02:07:55,701 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-20 02:07:55,701 INFO L87 Difference]: Start difference. First operand 228 states and 319 transitions. Second operand has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:07:55,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 02:07:55,751 INFO L93 Difference]: Finished difference Result 428 states and 595 transitions. [2024-11-20 02:07:55,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 02:07:55,752 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 0 states have call successors, (0), 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 50 [2024-11-20 02:07:55,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 02:07:55,755 INFO L225 Difference]: With dead ends: 428 [2024-11-20 02:07:55,755 INFO L226 Difference]: Without dead ends: 266 [2024-11-20 02:07:55,755 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-20 02:07:55,756 INFO L432 NwaCegarLoop]: 178 mSDtfsCounter, 375 mSDsluCounter, 350 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 375 SdHoareTripleChecker+Valid, 528 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-20 02:07:55,756 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [375 Valid, 528 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 02:07:55,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2024-11-20 02:07:55,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 218. [2024-11-20 02:07:55,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 218 states, 217 states have (on average 1.3963133640552996) internal successors, (303), 217 states have internal predecessors, (303), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:07:55,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 303 transitions. [2024-11-20 02:07:55,759 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 303 transitions. Word has length 50 [2024-11-20 02:07:55,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 02:07:55,760 INFO L471 AbstractCegarLoop]: Abstraction has 218 states and 303 transitions. [2024-11-20 02:07:55,760 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:07:55,760 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 303 transitions. [2024-11-20 02:07:55,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2024-11-20 02:07:55,760 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 02:07:55,760 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] [2024-11-20 02:07:55,760 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-20 02:07:55,761 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 02:07:55,761 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 02:07:55,761 INFO L85 PathProgramCache]: Analyzing trace with hash -75276800, now seen corresponding path program 1 times [2024-11-20 02:07:55,761 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 02:07:55,761 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [367309047] [2024-11-20 02:07:55,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 02:07:55,762 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 02:07:55,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:07:55,920 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 02:07:55,921 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 02:07:55,921 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [367309047] [2024-11-20 02:07:55,921 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [367309047] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 02:07:55,921 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 02:07:55,921 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-20 02:07:55,921 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [462266951] [2024-11-20 02:07:55,921 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 02:07:55,922 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-20 02:07:55,922 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 02:07:55,922 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-20 02:07:55,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-20 02:07:55,923 INFO L87 Difference]: Start difference. First operand 218 states and 303 transitions. Second operand has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:07:55,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 02:07:55,970 INFO L93 Difference]: Finished difference Result 417 states and 579 transitions. [2024-11-20 02:07:55,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-20 02:07:55,971 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 0 states have call successors, (0), 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 51 [2024-11-20 02:07:55,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 02:07:55,971 INFO L225 Difference]: With dead ends: 417 [2024-11-20 02:07:55,971 INFO L226 Difference]: Without dead ends: 240 [2024-11-20 02:07:55,972 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-20 02:07:55,973 INFO L432 NwaCegarLoop]: 180 mSDtfsCounter, 5 mSDsluCounter, 883 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 1063 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-20 02:07:55,973 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 1063 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 02:07:55,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 240 states. [2024-11-20 02:07:55,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 240 to 240. [2024-11-20 02:07:55,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 240 states, 239 states have (on average 1.3849372384937237) internal successors, (331), 239 states have internal predecessors, (331), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:07:55,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 240 states and 331 transitions. [2024-11-20 02:07:55,977 INFO L78 Accepts]: Start accepts. Automaton has 240 states and 331 transitions. Word has length 51 [2024-11-20 02:07:55,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 02:07:55,977 INFO L471 AbstractCegarLoop]: Abstraction has 240 states and 331 transitions. [2024-11-20 02:07:55,978 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:07:55,978 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states and 331 transitions. [2024-11-20 02:07:55,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2024-11-20 02:07:55,978 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 02:07:55,978 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] [2024-11-20 02:07:55,978 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-20 02:07:55,979 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 02:07:55,979 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 02:07:55,979 INFO L85 PathProgramCache]: Analyzing trace with hash 543160409, now seen corresponding path program 1 times [2024-11-20 02:07:55,979 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 02:07:55,979 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1845311422] [2024-11-20 02:07:55,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 02:07:55,980 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 02:07:55,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:07:56,062 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 02:07:56,062 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 02:07:56,062 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1845311422] [2024-11-20 02:07:56,063 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1845311422] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 02:07:56,063 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 02:07:56,063 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 02:07:56,063 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1478551050] [2024-11-20 02:07:56,063 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 02:07:56,063 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 02:07:56,063 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 02:07:56,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 02:07:56,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-20 02:07:56,064 INFO L87 Difference]: Start difference. First operand 240 states and 331 transitions. Second operand has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:07:56,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 02:07:56,104 INFO L93 Difference]: Finished difference Result 444 states and 607 transitions. [2024-11-20 02:07:56,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 02:07:56,105 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 0 states have call successors, (0), 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 51 [2024-11-20 02:07:56,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 02:07:56,106 INFO L225 Difference]: With dead ends: 444 [2024-11-20 02:07:56,106 INFO L226 Difference]: Without dead ends: 262 [2024-11-20 02:07:56,106 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-20 02:07:56,106 INFO L432 NwaCegarLoop]: 178 mSDtfsCounter, 319 mSDsluCounter, 350 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 319 SdHoareTripleChecker+Valid, 528 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-20 02:07:56,107 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [319 Valid, 528 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 02:07:56,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 262 states. [2024-11-20 02:07:56,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 262 to 230. [2024-11-20 02:07:56,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 230 states, 229 states have (on average 1.3755458515283843) internal successors, (315), 229 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:07:56,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 315 transitions. [2024-11-20 02:07:56,112 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 315 transitions. Word has length 51 [2024-11-20 02:07:56,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 02:07:56,112 INFO L471 AbstractCegarLoop]: Abstraction has 230 states and 315 transitions. [2024-11-20 02:07:56,112 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:07:56,112 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 315 transitions. [2024-11-20 02:07:56,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2024-11-20 02:07:56,113 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 02:07:56,113 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] [2024-11-20 02:07:56,113 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-20 02:07:56,113 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 02:07:56,113 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 02:07:56,113 INFO L85 PathProgramCache]: Analyzing trace with hash -131357547, now seen corresponding path program 1 times [2024-11-20 02:07:56,113 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 02:07:56,113 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1280479288] [2024-11-20 02:07:56,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 02:07:56,114 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 02:07:56,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:07:56,189 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 02:07:56,189 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 02:07:56,189 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1280479288] [2024-11-20 02:07:56,189 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1280479288] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 02:07:56,189 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 02:07:56,190 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 02:07:56,190 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [206052115] [2024-11-20 02:07:56,190 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 02:07:56,190 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 02:07:56,190 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 02:07:56,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 02:07:56,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-20 02:07:56,191 INFO L87 Difference]: Start difference. First operand 230 states and 315 transitions. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:07:56,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 02:07:56,208 INFO L93 Difference]: Finished difference Result 430 states and 588 transitions. [2024-11-20 02:07:56,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 02:07:56,209 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 0 states have call successors, (0), 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 52 [2024-11-20 02:07:56,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 02:07:56,209 INFO L225 Difference]: With dead ends: 430 [2024-11-20 02:07:56,210 INFO L226 Difference]: Without dead ends: 246 [2024-11-20 02:07:56,210 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-20 02:07:56,210 INFO L432 NwaCegarLoop]: 184 mSDtfsCounter, 4 mSDsluCounter, 541 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 725 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-20 02:07:56,210 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 725 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 02:07:56,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 246 states. [2024-11-20 02:07:56,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 246 to 246. [2024-11-20 02:07:56,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 246 states, 245 states have (on average 1.3673469387755102) internal successors, (335), 245 states have internal predecessors, (335), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:07:56,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 335 transitions. [2024-11-20 02:07:56,216 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 335 transitions. Word has length 52 [2024-11-20 02:07:56,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 02:07:56,216 INFO L471 AbstractCegarLoop]: Abstraction has 246 states and 335 transitions. [2024-11-20 02:07:56,216 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:07:56,216 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 335 transitions. [2024-11-20 02:07:56,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2024-11-20 02:07:56,216 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 02:07:56,217 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] [2024-11-20 02:07:56,217 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-20 02:07:56,217 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 02:07:56,217 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 02:07:56,217 INFO L85 PathProgramCache]: Analyzing trace with hash -553739812, now seen corresponding path program 1 times [2024-11-20 02:07:56,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 02:07:56,217 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1178156274] [2024-11-20 02:07:56,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 02:07:56,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 02:07:56,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:07:56,317 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 02:07:56,318 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 02:07:56,318 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1178156274] [2024-11-20 02:07:56,318 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1178156274] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 02:07:56,319 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 02:07:56,319 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 02:07:56,319 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1503950649] [2024-11-20 02:07:56,319 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 02:07:56,319 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 02:07:56,319 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 02:07:56,320 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 02:07:56,320 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-20 02:07:56,320 INFO L87 Difference]: Start difference. First operand 246 states and 335 transitions. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:07:56,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 02:07:56,363 INFO L93 Difference]: Finished difference Result 467 states and 631 transitions. [2024-11-20 02:07:56,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 02:07:56,364 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 0 states have call successors, (0), 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 52 [2024-11-20 02:07:56,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 02:07:56,364 INFO L225 Difference]: With dead ends: 467 [2024-11-20 02:07:56,364 INFO L226 Difference]: Without dead ends: 268 [2024-11-20 02:07:56,365 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-20 02:07:56,365 INFO L432 NwaCegarLoop]: 178 mSDtfsCounter, 311 mSDsluCounter, 350 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 311 SdHoareTripleChecker+Valid, 528 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-20 02:07:56,366 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [311 Valid, 528 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 02:07:56,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 268 states. [2024-11-20 02:07:56,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 268 to 236. [2024-11-20 02:07:56,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 236 states, 235 states have (on average 1.3574468085106384) internal successors, (319), 235 states have internal predecessors, (319), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:07:56,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 319 transitions. [2024-11-20 02:07:56,369 INFO L78 Accepts]: Start accepts. Automaton has 236 states and 319 transitions. Word has length 52 [2024-11-20 02:07:56,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 02:07:56,369 INFO L471 AbstractCegarLoop]: Abstraction has 236 states and 319 transitions. [2024-11-20 02:07:56,369 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:07:56,370 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 319 transitions. [2024-11-20 02:07:56,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2024-11-20 02:07:56,370 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 02:07:56,370 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 02:07:56,370 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-20 02:07:56,370 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 02:07:56,371 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 02:07:56,371 INFO L85 PathProgramCache]: Analyzing trace with hash -1014688366, now seen corresponding path program 1 times [2024-11-20 02:07:56,371 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 02:07:56,371 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1103066898] [2024-11-20 02:07:56,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 02:07:56,371 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 02:07:56,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:07:56,449 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 02:07:56,449 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 02:07:56,449 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1103066898] [2024-11-20 02:07:56,449 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1103066898] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 02:07:56,449 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 02:07:56,450 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 02:07:56,450 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2034852981] [2024-11-20 02:07:56,450 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 02:07:56,450 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 02:07:56,450 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 02:07:56,450 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 02:07:56,450 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-20 02:07:56,451 INFO L87 Difference]: Start difference. First operand 236 states and 319 transitions. Second operand has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:07:56,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 02:07:56,496 INFO L93 Difference]: Finished difference Result 437 states and 591 transitions. [2024-11-20 02:07:56,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 02:07:56,497 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 53 [2024-11-20 02:07:56,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 02:07:56,498 INFO L225 Difference]: With dead ends: 437 [2024-11-20 02:07:56,498 INFO L226 Difference]: Without dead ends: 237 [2024-11-20 02:07:56,498 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-20 02:07:56,499 INFO L432 NwaCegarLoop]: 178 mSDtfsCounter, 289 mSDsluCounter, 350 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 289 SdHoareTripleChecker+Valid, 528 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-20 02:07:56,499 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [289 Valid, 528 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 02:07:56,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 237 states. [2024-11-20 02:07:56,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 237 to 212. [2024-11-20 02:07:56,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 212 states, 211 states have (on average 1.3696682464454977) internal successors, (289), 211 states have internal predecessors, (289), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:07:56,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 289 transitions. [2024-11-20 02:07:56,504 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 289 transitions. Word has length 53 [2024-11-20 02:07:56,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 02:07:56,504 INFO L471 AbstractCegarLoop]: Abstraction has 212 states and 289 transitions. [2024-11-20 02:07:56,504 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:07:56,505 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 289 transitions. [2024-11-20 02:07:56,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-11-20 02:07:56,505 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 02:07:56,505 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-20 02:07:56,505 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-20 02:07:56,506 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 02:07:56,506 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 02:07:56,506 INFO L85 PathProgramCache]: Analyzing trace with hash -1013570968, now seen corresponding path program 1 times [2024-11-20 02:07:56,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 02:07:56,506 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2138347466] [2024-11-20 02:07:56,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 02:07:56,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 02:07:56,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:07:57,932 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 8 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 02:07:57,933 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 02:07:57,933 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2138347466] [2024-11-20 02:07:57,933 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2138347466] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 02:07:57,933 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1390794859] [2024-11-20 02:07:57,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 02:07:57,934 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 02:07:57,934 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 02:07:57,936 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 02:07:57,937 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-20 02:07:58,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:07:58,213 INFO L255 TraceCheckSpWp]: Trace formula consists of 714 conjuncts, 152 conjuncts are in the unsatisfiable core [2024-11-20 02:07:58,227 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 02:08:00,006 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 8 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 02:08:00,007 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-20 02:08:02,048 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 3 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 02:08:02,049 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1390794859] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-20 02:08:02,049 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-20 02:08:02,049 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 22, 25] total 54 [2024-11-20 02:08:02,049 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1250211686] [2024-11-20 02:08:02,049 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-20 02:08:02,050 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 54 states [2024-11-20 02:08:02,050 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 02:08:02,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 54 interpolants. [2024-11-20 02:08:02,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=308, Invalid=2554, Unknown=0, NotChecked=0, Total=2862 [2024-11-20 02:08:02,051 INFO L87 Difference]: Start difference. First operand 212 states and 289 transitions. Second operand has 54 states, 54 states have (on average 5.2407407407407405) internal successors, (283), 54 states have internal predecessors, (283), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:08:04,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 02:08:04,997 INFO L93 Difference]: Finished difference Result 636 states and 871 transitions. [2024-11-20 02:08:04,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2024-11-20 02:08:04,997 INFO L78 Accepts]: Start accepts. Automaton has has 54 states, 54 states have (on average 5.2407407407407405) internal successors, (283), 54 states have internal predecessors, (283), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 99 [2024-11-20 02:08:04,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 02:08:04,999 INFO L225 Difference]: With dead ends: 636 [2024-11-20 02:08:04,999 INFO L226 Difference]: Without dead ends: 474 [2024-11-20 02:08:05,002 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 269 GetRequests, 155 SyntacticMatches, 2 SemanticMatches, 112 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3944 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=1254, Invalid=11628, Unknown=0, NotChecked=0, Total=12882 [2024-11-20 02:08:05,002 INFO L432 NwaCegarLoop]: 105 mSDtfsCounter, 989 mSDsluCounter, 2896 mSDsCounter, 0 mSdLazyCounter, 2527 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 989 SdHoareTripleChecker+Valid, 3001 SdHoareTripleChecker+Invalid, 2566 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 2527 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-20 02:08:05,002 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [989 Valid, 3001 Invalid, 2566 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 2527 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-20 02:08:05,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 474 states. [2024-11-20 02:08:05,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 474 to 359. [2024-11-20 02:08:05,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 359 states, 358 states have (on average 1.3519553072625698) internal successors, (484), 358 states have internal predecessors, (484), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:08:05,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 359 states to 359 states and 484 transitions. [2024-11-20 02:08:05,008 INFO L78 Accepts]: Start accepts. Automaton has 359 states and 484 transitions. Word has length 99 [2024-11-20 02:08:05,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 02:08:05,008 INFO L471 AbstractCegarLoop]: Abstraction has 359 states and 484 transitions. [2024-11-20 02:08:05,008 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 54 states, 54 states have (on average 5.2407407407407405) internal successors, (283), 54 states have internal predecessors, (283), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:08:05,009 INFO L276 IsEmpty]: Start isEmpty. Operand 359 states and 484 transitions. [2024-11-20 02:08:05,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-11-20 02:08:05,009 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 02:08:05,010 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-20 02:08:05,021 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-20 02:08:05,210 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-11-20 02:08:05,210 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 02:08:05,211 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 02:08:05,211 INFO L85 PathProgramCache]: Analyzing trace with hash -1576973281, now seen corresponding path program 1 times [2024-11-20 02:08:05,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 02:08:05,211 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2020380597] [2024-11-20 02:08:05,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 02:08:05,211 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 02:08:05,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:08:06,693 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 02:08:06,693 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 02:08:06,693 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2020380597] [2024-11-20 02:08:06,694 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2020380597] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 02:08:06,694 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1571088199] [2024-11-20 02:08:06,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 02:08:06,694 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 02:08:06,694 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 02:08:06,696 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 02:08:06,697 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-20 02:08:06,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:08:06,973 INFO L255 TraceCheckSpWp]: Trace formula consists of 717 conjuncts, 186 conjuncts are in the unsatisfiable core [2024-11-20 02:08:06,982 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 02:08:08,619 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 12 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 02:08:08,620 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-20 02:08:12,731 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 9 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 02:08:12,731 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1571088199] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-20 02:08:12,731 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-20 02:08:12,731 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 25, 24] total 62 [2024-11-20 02:08:12,731 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1379146706] [2024-11-20 02:08:12,732 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-20 02:08:12,732 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 62 states [2024-11-20 02:08:12,732 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 02:08:12,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 62 interpolants. [2024-11-20 02:08:12,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=404, Invalid=3378, Unknown=0, NotChecked=0, Total=3782 [2024-11-20 02:08:12,734 INFO L87 Difference]: Start difference. First operand 359 states and 484 transitions. Second operand has 62 states, 62 states have (on average 4.596774193548387) internal successors, (285), 62 states have internal predecessors, (285), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:08:17,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 02:08:17,351 INFO L93 Difference]: Finished difference Result 1057 states and 1446 transitions. [2024-11-20 02:08:17,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 82 states. [2024-11-20 02:08:17,352 INFO L78 Accepts]: Start accepts. Automaton has has 62 states, 62 states have (on average 4.596774193548387) internal successors, (285), 62 states have internal predecessors, (285), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 100 [2024-11-20 02:08:17,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 02:08:17,354 INFO L225 Difference]: With dead ends: 1057 [2024-11-20 02:08:17,354 INFO L226 Difference]: Without dead ends: 780 [2024-11-20 02:08:17,360 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 295 GetRequests, 156 SyntacticMatches, 0 SemanticMatches, 139 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5765 ImplicationChecksByTransitivity, 4.9s TimeCoverageRelationStatistics Valid=1960, Invalid=17780, Unknown=0, NotChecked=0, Total=19740 [2024-11-20 02:08:17,362 INFO L432 NwaCegarLoop]: 106 mSDtfsCounter, 1493 mSDsluCounter, 3384 mSDsCounter, 0 mSdLazyCounter, 3254 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1493 SdHoareTripleChecker+Valid, 3490 SdHoareTripleChecker+Invalid, 3294 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 3254 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-20 02:08:17,362 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1493 Valid, 3490 Invalid, 3294 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 3254 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-20 02:08:17,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 780 states. [2024-11-20 02:08:17,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 780 to 546. [2024-11-20 02:08:17,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 546 states, 545 states have (on average 1.3541284403669724) internal successors, (738), 545 states have internal predecessors, (738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:08:17,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 546 states to 546 states and 738 transitions. [2024-11-20 02:08:17,373 INFO L78 Accepts]: Start accepts. Automaton has 546 states and 738 transitions. Word has length 100 [2024-11-20 02:08:17,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 02:08:17,373 INFO L471 AbstractCegarLoop]: Abstraction has 546 states and 738 transitions. [2024-11-20 02:08:17,373 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 62 states, 62 states have (on average 4.596774193548387) internal successors, (285), 62 states have internal predecessors, (285), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:08:17,373 INFO L276 IsEmpty]: Start isEmpty. Operand 546 states and 738 transitions. [2024-11-20 02:08:17,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-11-20 02:08:17,374 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 02:08:17,374 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-20 02:08:17,383 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-20 02:08:17,575 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-11-20 02:08:17,575 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 02:08:17,575 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 02:08:17,575 INFO L85 PathProgramCache]: Analyzing trace with hash 2083150738, now seen corresponding path program 1 times [2024-11-20 02:08:17,575 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 02:08:17,575 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1786048745] [2024-11-20 02:08:17,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 02:08:17,576 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 02:08:17,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:08:18,165 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 8 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 02:08:18,165 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 02:08:18,166 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1786048745] [2024-11-20 02:08:18,166 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1786048745] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 02:08:18,166 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1069110441] [2024-11-20 02:08:18,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 02:08:18,166 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 02:08:18,166 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 02:08:18,168 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 02:08:18,170 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-20 02:08:18,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:08:18,445 INFO L255 TraceCheckSpWp]: Trace formula consists of 717 conjuncts, 151 conjuncts are in the unsatisfiable core [2024-11-20 02:08:18,458 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 02:08:19,378 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 8 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 02:08:19,378 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-20 02:08:20,570 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 3 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 02:08:20,570 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1069110441] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-20 02:08:20,570 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-20 02:08:20,570 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 21, 21] total 48 [2024-11-20 02:08:20,570 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1057798543] [2024-11-20 02:08:20,571 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-20 02:08:20,571 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2024-11-20 02:08:20,571 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 02:08:20,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2024-11-20 02:08:20,572 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=278, Invalid=1978, Unknown=0, NotChecked=0, Total=2256 [2024-11-20 02:08:20,572 INFO L87 Difference]: Start difference. First operand 546 states and 738 transitions. Second operand has 48 states, 48 states have (on average 5.958333333333333) internal successors, (286), 48 states have internal predecessors, (286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:08:24,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 02:08:24,790 INFO L93 Difference]: Finished difference Result 2106 states and 2854 transitions. [2024-11-20 02:08:24,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 95 states. [2024-11-20 02:08:24,792 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 48 states have (on average 5.958333333333333) internal successors, (286), 48 states have internal predecessors, (286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 100 [2024-11-20 02:08:24,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 02:08:24,796 INFO L225 Difference]: With dead ends: 2106 [2024-11-20 02:08:24,796 INFO L226 Difference]: Without dead ends: 1791 [2024-11-20 02:08:24,800 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 304 GetRequests, 165 SyntacticMatches, 1 SemanticMatches, 138 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6350 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=2459, Invalid=17001, Unknown=0, NotChecked=0, Total=19460 [2024-11-20 02:08:24,800 INFO L432 NwaCegarLoop]: 275 mSDtfsCounter, 1498 mSDsluCounter, 6914 mSDsCounter, 0 mSdLazyCounter, 4027 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1498 SdHoareTripleChecker+Valid, 7189 SdHoareTripleChecker+Invalid, 4045 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 4027 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-20 02:08:24,801 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1498 Valid, 7189 Invalid, 4045 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 4027 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-20 02:08:24,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1791 states. [2024-11-20 02:08:24,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1791 to 832. [2024-11-20 02:08:24,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 832 states, 831 states have (on average 1.3465703971119134) internal successors, (1119), 831 states have internal predecessors, (1119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:08:24,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 832 states to 832 states and 1119 transitions. [2024-11-20 02:08:24,813 INFO L78 Accepts]: Start accepts. Automaton has 832 states and 1119 transitions. Word has length 100 [2024-11-20 02:08:24,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 02:08:24,813 INFO L471 AbstractCegarLoop]: Abstraction has 832 states and 1119 transitions. [2024-11-20 02:08:24,814 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 48 states have (on average 5.958333333333333) internal successors, (286), 48 states have internal predecessors, (286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:08:24,814 INFO L276 IsEmpty]: Start isEmpty. Operand 832 states and 1119 transitions. [2024-11-20 02:08:24,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-20 02:08:24,815 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 02:08:24,815 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 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] [2024-11-20 02:08:24,823 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-20 02:08:25,015 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 02:08:25,017 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 02:08:25,017 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 02:08:25,017 INFO L85 PathProgramCache]: Analyzing trace with hash -1224472682, now seen corresponding path program 1 times [2024-11-20 02:08:25,017 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 02:08:25,017 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [659580518] [2024-11-20 02:08:25,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 02:08:25,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 02:08:25,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:08:26,089 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 10 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 02:08:26,089 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 02:08:26,089 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [659580518] [2024-11-20 02:08:26,090 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [659580518] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 02:08:26,090 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1856871881] [2024-11-20 02:08:26,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 02:08:26,090 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 02:08:26,090 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 02:08:26,091 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 02:08:26,092 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-20 02:08:26,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:08:26,329 INFO L255 TraceCheckSpWp]: Trace formula consists of 720 conjuncts, 106 conjuncts are in the unsatisfiable core [2024-11-20 02:08:26,334 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 02:08:27,016 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 12 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 02:08:27,016 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-20 02:08:28,305 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 9 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 02:08:28,305 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1856871881] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-20 02:08:28,305 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-20 02:08:28,305 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 18, 20] total 50 [2024-11-20 02:08:28,305 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1378671468] [2024-11-20 02:08:28,305 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-20 02:08:28,306 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2024-11-20 02:08:28,306 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 02:08:28,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2024-11-20 02:08:28,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=204, Invalid=2246, Unknown=0, NotChecked=0, Total=2450 [2024-11-20 02:08:28,307 INFO L87 Difference]: Start difference. First operand 832 states and 1119 transitions. Second operand has 50 states, 50 states have (on average 5.66) internal successors, (283), 50 states have internal predecessors, (283), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:08:32,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 02:08:32,807 INFO L93 Difference]: Finished difference Result 2066 states and 2803 transitions. [2024-11-20 02:08:32,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 97 states. [2024-11-20 02:08:32,807 INFO L78 Accepts]: Start accepts. Automaton has has 50 states, 50 states have (on average 5.66) internal successors, (283), 50 states have internal predecessors, (283), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2024-11-20 02:08:32,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 02:08:32,811 INFO L225 Difference]: With dead ends: 2066 [2024-11-20 02:08:32,811 INFO L226 Difference]: Without dead ends: 1544 [2024-11-20 02:08:32,814 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 312 GetRequests, 169 SyntacticMatches, 1 SemanticMatches, 142 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5435 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=1769, Invalid=18823, Unknown=0, NotChecked=0, Total=20592 [2024-11-20 02:08:32,814 INFO L432 NwaCegarLoop]: 150 mSDtfsCounter, 2334 mSDsluCounter, 4411 mSDsCounter, 0 mSdLazyCounter, 4241 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2334 SdHoareTripleChecker+Valid, 4561 SdHoareTripleChecker+Invalid, 4273 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 4241 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-20 02:08:32,815 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2334 Valid, 4561 Invalid, 4273 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 4241 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-20 02:08:32,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1544 states. [2024-11-20 02:08:32,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1544 to 1146. [2024-11-20 02:08:32,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1146 states, 1145 states have (on average 1.3362445414847162) internal successors, (1530), 1145 states have internal predecessors, (1530), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:08:32,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1146 states to 1146 states and 1530 transitions. [2024-11-20 02:08:32,829 INFO L78 Accepts]: Start accepts. Automaton has 1146 states and 1530 transitions. Word has length 101 [2024-11-20 02:08:32,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 02:08:32,830 INFO L471 AbstractCegarLoop]: Abstraction has 1146 states and 1530 transitions. [2024-11-20 02:08:32,830 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 50 states, 50 states have (on average 5.66) internal successors, (283), 50 states have internal predecessors, (283), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:08:32,830 INFO L276 IsEmpty]: Start isEmpty. Operand 1146 states and 1530 transitions. [2024-11-20 02:08:32,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-20 02:08:32,831 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 02:08:32,831 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-20 02:08:32,842 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-20 02:08:33,031 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-11-20 02:08:33,032 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 02:08:33,032 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 02:08:33,032 INFO L85 PathProgramCache]: Analyzing trace with hash -1373936955, now seen corresponding path program 1 times [2024-11-20 02:08:33,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 02:08:33,032 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1027712686] [2024-11-20 02:08:33,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 02:08:33,032 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 02:08:33,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:08:34,130 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 8 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 02:08:34,131 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 02:08:34,131 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1027712686] [2024-11-20 02:08:34,131 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1027712686] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 02:08:34,131 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [156924799] [2024-11-20 02:08:34,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 02:08:34,131 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 02:08:34,131 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 02:08:34,133 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 02:08:34,135 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-20 02:08:34,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:08:34,409 INFO L255 TraceCheckSpWp]: Trace formula consists of 718 conjuncts, 86 conjuncts are in the unsatisfiable core [2024-11-20 02:08:34,413 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 02:08:35,069 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 8 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 02:08:35,069 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-20 02:08:36,193 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 8 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 02:08:36,193 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [156924799] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-20 02:08:36,193 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-20 02:08:36,193 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 18, 15] total 38 [2024-11-20 02:08:36,193 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2063761557] [2024-11-20 02:08:36,194 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-20 02:08:36,194 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2024-11-20 02:08:36,194 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 02:08:36,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2024-11-20 02:08:36,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=192, Invalid=1214, Unknown=0, NotChecked=0, Total=1406 [2024-11-20 02:08:36,195 INFO L87 Difference]: Start difference. First operand 1146 states and 1530 transitions. Second operand has 38 states, 38 states have (on average 7.315789473684211) internal successors, (278), 38 states have internal predecessors, (278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:08:37,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 02:08:37,302 INFO L93 Difference]: Finished difference Result 2131 states and 2862 transitions. [2024-11-20 02:08:37,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2024-11-20 02:08:37,302 INFO L78 Accepts]: Start accepts. Automaton has has 38 states, 38 states have (on average 7.315789473684211) internal successors, (278), 38 states have internal predecessors, (278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2024-11-20 02:08:37,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 02:08:37,305 INFO L225 Difference]: With dead ends: 2131 [2024-11-20 02:08:37,305 INFO L226 Difference]: Without dead ends: 1247 [2024-11-20 02:08:37,307 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 237 GetRequests, 174 SyntacticMatches, 1 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1169 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=585, Invalid=3447, Unknown=0, NotChecked=0, Total=4032 [2024-11-20 02:08:37,307 INFO L432 NwaCegarLoop]: 113 mSDtfsCounter, 1170 mSDsluCounter, 1739 mSDsCounter, 0 mSdLazyCounter, 1392 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1170 SdHoareTripleChecker+Valid, 1852 SdHoareTripleChecker+Invalid, 1407 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 1392 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-20 02:08:37,307 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1170 Valid, 1852 Invalid, 1407 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 1392 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-20 02:08:37,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1247 states. [2024-11-20 02:08:37,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1247 to 947. [2024-11-20 02:08:37,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 947 states, 946 states have (on average 1.3456659619450317) internal successors, (1273), 946 states have internal predecessors, (1273), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:08:37,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 947 states to 947 states and 1273 transitions. [2024-11-20 02:08:37,320 INFO L78 Accepts]: Start accepts. Automaton has 947 states and 1273 transitions. Word has length 101 [2024-11-20 02:08:37,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 02:08:37,320 INFO L471 AbstractCegarLoop]: Abstraction has 947 states and 1273 transitions. [2024-11-20 02:08:37,320 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 38 states have (on average 7.315789473684211) internal successors, (278), 38 states have internal predecessors, (278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:08:37,320 INFO L276 IsEmpty]: Start isEmpty. Operand 947 states and 1273 transitions. [2024-11-20 02:08:37,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-11-20 02:08:37,321 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 02:08:37,321 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 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] [2024-11-20 02:08:37,330 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-20 02:08:37,521 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 02:08:37,522 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 02:08:37,522 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 02:08:37,522 INFO L85 PathProgramCache]: Analyzing trace with hash 296144241, now seen corresponding path program 1 times [2024-11-20 02:08:37,522 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 02:08:37,522 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1574003639] [2024-11-20 02:08:37,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 02:08:37,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 02:08:37,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:08:38,362 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 20 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 02:08:38,363 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 02:08:38,363 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1574003639] [2024-11-20 02:08:38,363 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1574003639] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 02:08:38,363 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [901502618] [2024-11-20 02:08:38,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 02:08:38,363 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 02:08:38,364 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 02:08:38,365 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 02:08:38,367 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-20 02:08:38,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:08:38,698 INFO L255 TraceCheckSpWp]: Trace formula consists of 723 conjuncts, 137 conjuncts are in the unsatisfiable core [2024-11-20 02:08:38,703 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 02:08:39,615 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 20 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 02:08:39,615 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-20 02:08:40,848 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 17 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 02:08:40,848 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [901502618] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-20 02:08:40,848 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-20 02:08:40,849 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 14, 14] total 35 [2024-11-20 02:08:40,849 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1776993641] [2024-11-20 02:08:40,849 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-20 02:08:40,849 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2024-11-20 02:08:40,849 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 02:08:40,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2024-11-20 02:08:40,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=134, Invalid=1056, Unknown=0, NotChecked=0, Total=1190 [2024-11-20 02:08:40,850 INFO L87 Difference]: Start difference. First operand 947 states and 1273 transitions. Second operand has 35 states, 35 states have (on average 7.857142857142857) internal successors, (275), 35 states have internal predecessors, (275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:08:42,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 02:08:42,087 INFO L93 Difference]: Finished difference Result 1825 states and 2449 transitions. [2024-11-20 02:08:42,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2024-11-20 02:08:42,087 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 35 states have (on average 7.857142857142857) internal successors, (275), 35 states have internal predecessors, (275), 0 states have call successors, (0), 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 102 [2024-11-20 02:08:42,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 02:08:42,089 INFO L225 Difference]: With dead ends: 1825 [2024-11-20 02:08:42,090 INFO L226 Difference]: Without dead ends: 1009 [2024-11-20 02:08:42,091 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 248 GetRequests, 181 SyntacticMatches, 1 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1085 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=586, Invalid=3970, Unknown=0, NotChecked=0, Total=4556 [2024-11-20 02:08:42,091 INFO L432 NwaCegarLoop]: 115 mSDtfsCounter, 553 mSDsluCounter, 2150 mSDsCounter, 0 mSdLazyCounter, 1486 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 553 SdHoareTripleChecker+Valid, 2265 SdHoareTripleChecker+Invalid, 1497 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 1486 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-20 02:08:42,092 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [553 Valid, 2265 Invalid, 1497 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 1486 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-20 02:08:42,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1009 states. [2024-11-20 02:08:42,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1009 to 925. [2024-11-20 02:08:42,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 925 states, 924 states have (on average 1.3474025974025974) internal successors, (1245), 924 states have internal predecessors, (1245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:08:42,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 925 states to 925 states and 1245 transitions. [2024-11-20 02:08:42,102 INFO L78 Accepts]: Start accepts. Automaton has 925 states and 1245 transitions. Word has length 102 [2024-11-20 02:08:42,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 02:08:42,102 INFO L471 AbstractCegarLoop]: Abstraction has 925 states and 1245 transitions. [2024-11-20 02:08:42,102 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 35 states have (on average 7.857142857142857) internal successors, (275), 35 states have internal predecessors, (275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:08:42,103 INFO L276 IsEmpty]: Start isEmpty. Operand 925 states and 1245 transitions. [2024-11-20 02:08:42,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-11-20 02:08:42,104 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 02:08:42,104 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-20 02:08:42,113 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-20 02:08:42,304 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 02:08:42,305 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 02:08:42,305 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 02:08:42,305 INFO L85 PathProgramCache]: Analyzing trace with hash 1122330496, now seen corresponding path program 2 times [2024-11-20 02:08:42,305 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 02:08:42,305 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2090719714] [2024-11-20 02:08:42,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 02:08:42,306 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 02:08:42,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:08:45,062 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 16 proven. 95 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 02:08:45,062 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 02:08:45,062 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2090719714] [2024-11-20 02:08:45,062 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2090719714] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 02:08:45,062 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1167942979] [2024-11-20 02:08:45,062 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-20 02:08:45,062 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 02:08:45,062 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 02:08:45,063 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 02:08:45,064 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-20 02:08:45,604 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-20 02:08:45,604 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-20 02:08:45,611 INFO L255 TraceCheckSpWp]: Trace formula consists of 1188 conjuncts, 133 conjuncts are in the unsatisfiable core [2024-11-20 02:08:45,616 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 02:08:46,750 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 37 proven. 74 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 02:08:46,750 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-20 02:08:48,936 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 10 proven. 101 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 02:08:48,936 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1167942979] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-20 02:08:48,937 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-20 02:08:48,937 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 23, 23] total 61 [2024-11-20 02:08:48,937 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1677438881] [2024-11-20 02:08:48,937 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-20 02:08:48,937 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 61 states [2024-11-20 02:08:48,937 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 02:08:48,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 61 interpolants. [2024-11-20 02:08:48,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=287, Invalid=3373, Unknown=0, NotChecked=0, Total=3660 [2024-11-20 02:08:48,939 INFO L87 Difference]: Start difference. First operand 925 states and 1245 transitions. Second operand has 61 states, 61 states have (on average 7.098360655737705) internal successors, (433), 61 states have internal predecessors, (433), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:08:51,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 02:08:51,454 INFO L93 Difference]: Finished difference Result 4605 states and 6188 transitions. [2024-11-20 02:08:51,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2024-11-20 02:08:51,455 INFO L78 Accepts]: Start accepts. Automaton has has 61 states, 61 states have (on average 7.098360655737705) internal successors, (433), 61 states have internal predecessors, (433), 0 states have call successors, (0), 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 150 [2024-11-20 02:08:51,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 02:08:51,463 INFO L225 Difference]: With dead ends: 4605 [2024-11-20 02:08:51,463 INFO L226 Difference]: Without dead ends: 3996 [2024-11-20 02:08:51,466 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 381 GetRequests, 259 SyntacticMatches, 1 SemanticMatches, 121 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4126 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=1532, Invalid=13474, Unknown=0, NotChecked=0, Total=15006 [2024-11-20 02:08:51,466 INFO L432 NwaCegarLoop]: 124 mSDtfsCounter, 2535 mSDsluCounter, 4029 mSDsCounter, 0 mSdLazyCounter, 2455 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2535 SdHoareTripleChecker+Valid, 4153 SdHoareTripleChecker+Invalid, 2480 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 2455 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-20 02:08:51,466 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2535 Valid, 4153 Invalid, 2480 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 2455 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-20 02:08:51,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3996 states. [2024-11-20 02:08:51,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3996 to 1689. [2024-11-20 02:08:51,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1689 states, 1688 states have (on average 1.3459715639810426) internal successors, (2272), 1688 states have internal predecessors, (2272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:08:51,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1689 states to 1689 states and 2272 transitions. [2024-11-20 02:08:51,495 INFO L78 Accepts]: Start accepts. Automaton has 1689 states and 2272 transitions. Word has length 150 [2024-11-20 02:08:51,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 02:08:51,495 INFO L471 AbstractCegarLoop]: Abstraction has 1689 states and 2272 transitions. [2024-11-20 02:08:51,495 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 61 states, 61 states have (on average 7.098360655737705) internal successors, (433), 61 states have internal predecessors, (433), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:08:51,496 INFO L276 IsEmpty]: Start isEmpty. Operand 1689 states and 2272 transitions. [2024-11-20 02:08:51,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-11-20 02:08:51,497 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 02:08:51,498 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-20 02:08:51,509 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-20 02:08:51,698 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 02:08:51,698 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 02:08:51,699 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 02:08:51,699 INFO L85 PathProgramCache]: Analyzing trace with hash -429820374, now seen corresponding path program 1 times [2024-11-20 02:08:51,699 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 02:08:51,699 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1734531746] [2024-11-20 02:08:51,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 02:08:51,699 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 02:08:51,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:08:52,488 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 78 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2024-11-20 02:08:52,488 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 02:08:52,488 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1734531746] [2024-11-20 02:08:52,488 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1734531746] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 02:08:52,488 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 02:08:52,489 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-20 02:08:52,489 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1399688087] [2024-11-20 02:08:52,489 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 02:08:52,489 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-20 02:08:52,490 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 02:08:52,490 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-20 02:08:52,490 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2024-11-20 02:08:52,490 INFO L87 Difference]: Start difference. First operand 1689 states and 2272 transitions. Second operand has 7 states, 7 states have (on average 17.428571428571427) internal successors, (122), 7 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:08:52,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 02:08:52,588 INFO L93 Difference]: Finished difference Result 2513 states and 3381 transitions. [2024-11-20 02:08:52,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-20 02:08:52,588 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.428571428571427) internal successors, (122), 7 states have internal predecessors, (122), 0 states have call successors, (0), 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 151 [2024-11-20 02:08:52,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 02:08:52,592 INFO L225 Difference]: With dead ends: 2513 [2024-11-20 02:08:52,592 INFO L226 Difference]: Without dead ends: 1680 [2024-11-20 02:08:52,593 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-11-20 02:08:52,594 INFO L432 NwaCegarLoop]: 159 mSDtfsCounter, 320 mSDsluCounter, 461 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 320 SdHoareTripleChecker+Valid, 620 SdHoareTripleChecker+Invalid, 108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-20 02:08:52,595 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [320 Valid, 620 Invalid, 108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 106 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-20 02:08:52,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1680 states. [2024-11-20 02:08:52,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1680 to 1680. [2024-11-20 02:08:52,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1680 states, 1679 states have (on average 1.3442525312686122) internal successors, (2257), 1679 states have internal predecessors, (2257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:08:52,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1680 states to 1680 states and 2257 transitions. [2024-11-20 02:08:52,618 INFO L78 Accepts]: Start accepts. Automaton has 1680 states and 2257 transitions. Word has length 151 [2024-11-20 02:08:52,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 02:08:52,619 INFO L471 AbstractCegarLoop]: Abstraction has 1680 states and 2257 transitions. [2024-11-20 02:08:52,619 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.428571428571427) internal successors, (122), 7 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:08:52,619 INFO L276 IsEmpty]: Start isEmpty. Operand 1680 states and 2257 transitions. [2024-11-20 02:08:52,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-11-20 02:08:52,622 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 02:08:52,622 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-20 02:08:52,622 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-20 02:08:52,622 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 02:08:52,622 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 02:08:52,623 INFO L85 PathProgramCache]: Analyzing trace with hash 211462663, now seen corresponding path program 2 times [2024-11-20 02:08:52,623 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 02:08:52,623 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1093170829] [2024-11-20 02:08:52,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 02:08:52,623 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 02:08:53,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:08:56,632 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 24 proven. 87 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 02:08:56,632 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 02:08:56,632 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1093170829] [2024-11-20 02:08:56,632 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1093170829] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 02:08:56,632 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [29875161] [2024-11-20 02:08:56,632 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-20 02:08:56,632 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 02:08:56,633 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 02:08:56,634 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 02:08:56,635 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-20 02:08:57,105 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-20 02:08:57,105 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-20 02:08:57,111 INFO L255 TraceCheckSpWp]: Trace formula consists of 1191 conjuncts, 122 conjuncts are in the unsatisfiable core [2024-11-20 02:08:57,116 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 02:08:58,292 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 24 proven. 85 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-20 02:08:58,292 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-20 02:09:00,749 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 14 proven. 97 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 02:09:00,749 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [29875161] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-20 02:09:00,749 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-20 02:09:00,749 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 18, 24] total 62 [2024-11-20 02:09:00,749 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [121616915] [2024-11-20 02:09:00,749 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-20 02:09:00,750 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 62 states [2024-11-20 02:09:00,750 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 02:09:00,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 62 interpolants. [2024-11-20 02:09:00,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=254, Invalid=3528, Unknown=0, NotChecked=0, Total=3782 [2024-11-20 02:09:00,751 INFO L87 Difference]: Start difference. First operand 1680 states and 2257 transitions. Second operand has 62 states, 62 states have (on average 6.951612903225806) internal successors, (431), 62 states have internal predecessors, (431), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:09:11,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 02:09:11,376 INFO L93 Difference]: Finished difference Result 10375 states and 14004 transitions. [2024-11-20 02:09:11,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 204 states. [2024-11-20 02:09:11,376 INFO L78 Accepts]: Start accepts. Automaton has has 62 states, 62 states have (on average 6.951612903225806) internal successors, (431), 62 states have internal predecessors, (431), 0 states have call successors, (0), 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 151 [2024-11-20 02:09:11,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 02:09:11,393 INFO L225 Difference]: With dead ends: 10375 [2024-11-20 02:09:11,393 INFO L226 Difference]: Without dead ends: 8733 [2024-11-20 02:09:11,397 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 527 GetRequests, 264 SyntacticMatches, 2 SemanticMatches, 261 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25581 ImplicationChecksByTransitivity, 9.3s TimeCoverageRelationStatistics Valid=5321, Invalid=63585, Unknown=0, NotChecked=0, Total=68906 [2024-11-20 02:09:11,397 INFO L432 NwaCegarLoop]: 201 mSDtfsCounter, 7054 mSDsluCounter, 8662 mSDsCounter, 0 mSdLazyCounter, 5673 mSolverCounterSat, 94 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7054 SdHoareTripleChecker+Valid, 8863 SdHoareTripleChecker+Invalid, 5767 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 94 IncrementalHoareTripleChecker+Valid, 5673 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-11-20 02:09:11,397 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [7054 Valid, 8863 Invalid, 5767 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [94 Valid, 5673 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-11-20 02:09:11,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8733 states. [2024-11-20 02:09:11,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8733 to 3669. [2024-11-20 02:09:11,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3669 states, 3668 states have (on average 1.3410577971646673) internal successors, (4919), 3668 states have internal predecessors, (4919), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:09:11,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3669 states to 3669 states and 4919 transitions. [2024-11-20 02:09:11,463 INFO L78 Accepts]: Start accepts. Automaton has 3669 states and 4919 transitions. Word has length 151 [2024-11-20 02:09:11,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 02:09:11,463 INFO L471 AbstractCegarLoop]: Abstraction has 3669 states and 4919 transitions. [2024-11-20 02:09:11,463 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 62 states, 62 states have (on average 6.951612903225806) internal successors, (431), 62 states have internal predecessors, (431), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:09:11,463 INFO L276 IsEmpty]: Start isEmpty. Operand 3669 states and 4919 transitions. [2024-11-20 02:09:11,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-11-20 02:09:11,466 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 02:09:11,466 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-20 02:09:11,477 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-20 02:09:11,666 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2024-11-20 02:09:11,668 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 02:09:11,668 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 02:09:11,668 INFO L85 PathProgramCache]: Analyzing trace with hash -1617533266, now seen corresponding path program 2 times [2024-11-20 02:09:11,669 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 02:09:11,669 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1123638075] [2024-11-20 02:09:11,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 02:09:11,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 02:09:12,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat