./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem18_label40.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 61a67961 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/eca-rers2012/Problem18_label40.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 1a53e4c70dff58f3400fe09c8b43892b5493d2ca012910f006ca78f70be38079 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.fs.cvc5-61a6796-m [2024-10-14 00:03:13,432 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-14 00:03:13,498 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-14 00:03:13,504 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-14 00:03:13,505 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-14 00:03:13,528 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-14 00:03:13,528 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-14 00:03:13,529 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-14 00:03:13,529 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-14 00:03:13,530 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-14 00:03:13,530 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-14 00:03:13,530 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-14 00:03:13,531 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-14 00:03:13,531 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-14 00:03:13,532 INFO L153 SettingsManager]: * Use SBE=true [2024-10-14 00:03:13,532 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-14 00:03:13,532 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-14 00:03:13,533 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-14 00:03:13,533 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-14 00:03:13,533 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-14 00:03:13,533 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-14 00:03:13,537 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-14 00:03:13,538 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-14 00:03:13,538 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-14 00:03:13,538 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-14 00:03:13,538 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-14 00:03:13,538 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-14 00:03:13,539 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-14 00:03:13,539 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-14 00:03:13,539 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-14 00:03:13,539 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-14 00:03:13,540 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-14 00:03:13,540 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 00:03:13,540 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-14 00:03:13,540 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-14 00:03:13,540 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-14 00:03:13,541 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-14 00:03:13,541 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-14 00:03:13,543 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-14 00:03:13,544 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-14 00:03:13,544 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-14 00:03:13,544 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-14 00:03:13,545 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1a53e4c70dff58f3400fe09c8b43892b5493d2ca012910f006ca78f70be38079 [2024-10-14 00:03:13,786 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-14 00:03:13,813 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-14 00:03:13,818 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-14 00:03:13,820 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-14 00:03:13,821 INFO L274 PluginConnector]: CDTParser initialized [2024-10-14 00:03:13,823 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem18_label40.c [2024-10-14 00:03:15,272 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-14 00:03:15,686 INFO L384 CDTParser]: Found 1 translation units. [2024-10-14 00:03:15,688 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem18_label40.c [2024-10-14 00:03:15,719 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d5c963733/646d8a6b68d745bdad0fc00c88b74146/FLAGf2b6291dd [2024-10-14 00:03:15,738 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d5c963733/646d8a6b68d745bdad0fc00c88b74146 [2024-10-14 00:03:15,742 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-14 00:03:15,743 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-14 00:03:15,744 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-14 00:03:15,744 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-14 00:03:15,750 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-14 00:03:15,750 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 12:03:15" (1/1) ... [2024-10-14 00:03:15,753 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c48f6e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:03:15, skipping insertion in model container [2024-10-14 00:03:15,753 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 12:03:15" (1/1) ... [2024-10-14 00:03:15,838 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-14 00:03:16,078 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem18_label40.c[4742,4755] [2024-10-14 00:03:16,679 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 00:03:16,690 INFO L200 MainTranslator]: Completed pre-run [2024-10-14 00:03:16,712 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem18_label40.c[4742,4755] [2024-10-14 00:03:16,967 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 00:03:16,992 INFO L204 MainTranslator]: Completed translation [2024-10-14 00:03:16,992 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:03:16 WrapperNode [2024-10-14 00:03:16,993 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-14 00:03:16,994 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-14 00:03:16,994 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-14 00:03:16,994 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-14 00:03:17,000 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:03:16" (1/1) ... [2024-10-14 00:03:17,096 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:03:16" (1/1) ... [2024-10-14 00:03:17,252 INFO L138 Inliner]: procedures = 16, calls = 10, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 4135 [2024-10-14 00:03:17,252 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-14 00:03:17,254 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-14 00:03:17,254 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-14 00:03:17,254 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-14 00:03:17,265 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:03:16" (1/1) ... [2024-10-14 00:03:17,266 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:03:16" (1/1) ... [2024-10-14 00:03:17,291 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:03:16" (1/1) ... [2024-10-14 00:03:17,431 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-10-14 00:03:17,432 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:03:16" (1/1) ... [2024-10-14 00:03:17,432 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:03:16" (1/1) ... [2024-10-14 00:03:17,512 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:03:16" (1/1) ... [2024-10-14 00:03:17,542 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:03:16" (1/1) ... [2024-10-14 00:03:17,560 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:03:16" (1/1) ... [2024-10-14 00:03:17,576 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:03:16" (1/1) ... [2024-10-14 00:03:17,610 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-14 00:03:17,612 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-14 00:03:17,613 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-14 00:03:17,613 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-14 00:03:17,614 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:03:16" (1/1) ... [2024-10-14 00:03:17,621 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 00:03:17,632 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 00:03:17,647 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) [2024-10-14 00:03:17,649 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 [2024-10-14 00:03:17,685 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-14 00:03:17,685 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-14 00:03:17,685 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-14 00:03:17,685 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-14 00:03:17,762 INFO L238 CfgBuilder]: Building ICFG [2024-10-14 00:03:17,766 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-14 00:03:21,199 INFO L? ?]: Removed 639 outVars from TransFormulas that were not future-live. [2024-10-14 00:03:21,200 INFO L287 CfgBuilder]: Performing block encoding [2024-10-14 00:03:21,258 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-14 00:03:21,258 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-14 00:03:21,259 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 12:03:21 BoogieIcfgContainer [2024-10-14 00:03:21,259 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-14 00:03:21,261 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-14 00:03:21,262 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-14 00:03:21,265 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-14 00:03:21,265 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 12:03:15" (1/3) ... [2024-10-14 00:03:21,267 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4dd6e2a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 12:03:21, skipping insertion in model container [2024-10-14 00:03:21,267 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:03:16" (2/3) ... [2024-10-14 00:03:21,267 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4dd6e2a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 12:03:21, skipping insertion in model container [2024-10-14 00:03:21,267 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 12:03:21" (3/3) ... [2024-10-14 00:03:21,268 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem18_label40.c [2024-10-14 00:03:21,289 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-14 00:03:21,289 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-14 00:03:21,398 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-14 00:03:21,405 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;@555224bb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-14 00:03:21,405 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-14 00:03:21,413 INFO L276 IsEmpty]: Start isEmpty. Operand has 695 states, 693 states have (on average 1.9942279942279941) internal successors, (1382), 694 states have internal predecessors, (1382), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 00:03:21,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2024-10-14 00:03:21,420 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 00:03:21,421 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] [2024-10-14 00:03:21,422 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 00:03:21,426 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 00:03:21,427 INFO L85 PathProgramCache]: Analyzing trace with hash -111101366, now seen corresponding path program 1 times [2024-10-14 00:03:21,436 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 00:03:21,436 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2032470663] [2024-10-14 00:03:21,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 00:03:21,437 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 00:03:21,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 00:03:21,641 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 00:03:21,642 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 00:03:21,642 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2032470663] [2024-10-14 00:03:21,644 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2032470663] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 00:03:21,644 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 00:03:21,644 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 00:03:21,646 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1830349618] [2024-10-14 00:03:21,647 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 00:03:21,651 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-14 00:03:21,652 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 00:03:21,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-14 00:03:21,673 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-14 00:03:21,676 INFO L87 Difference]: Start difference. First operand has 695 states, 693 states have (on average 1.9942279942279941) internal successors, (1382), 694 states have internal predecessors, (1382), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 21.5) internal successors, (43), 2 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 00:03:21,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 00:03:21,770 INFO L93 Difference]: Finished difference Result 1389 states and 2763 transitions. [2024-10-14 00:03:21,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-14 00:03:21,773 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 21.5) internal successors, (43), 2 states have internal predecessors, (43), 0 states have call successors, (0), 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 43 [2024-10-14 00:03:21,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 00:03:21,792 INFO L225 Difference]: With dead ends: 1389 [2024-10-14 00:03:21,792 INFO L226 Difference]: Without dead ends: 693 [2024-10-14 00:03:21,798 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-14 00:03:21,801 INFO L432 NwaCegarLoop]: 1317 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1317 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 00:03:21,804 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1317 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 00:03:21,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 693 states. [2024-10-14 00:03:21,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 693 to 693. [2024-10-14 00:03:21,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 693 states, 692 states have (on average 1.903179190751445) internal successors, (1317), 692 states have internal predecessors, (1317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 00:03:21,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 693 states to 693 states and 1317 transitions. [2024-10-14 00:03:21,877 INFO L78 Accepts]: Start accepts. Automaton has 693 states and 1317 transitions. Word has length 43 [2024-10-14 00:03:21,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 00:03:21,877 INFO L471 AbstractCegarLoop]: Abstraction has 693 states and 1317 transitions. [2024-10-14 00:03:21,878 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 21.5) internal successors, (43), 2 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 00:03:21,878 INFO L276 IsEmpty]: Start isEmpty. Operand 693 states and 1317 transitions. [2024-10-14 00:03:21,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2024-10-14 00:03:21,921 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 00:03:21,921 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] [2024-10-14 00:03:21,922 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-14 00:03:21,922 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 00:03:21,923 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 00:03:21,923 INFO L85 PathProgramCache]: Analyzing trace with hash -2109629731, now seen corresponding path program 1 times [2024-10-14 00:03:21,923 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 00:03:21,923 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1251779012] [2024-10-14 00:03:21,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 00:03:21,924 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 00:03:21,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 00:03:22,154 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 00:03:22,154 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 00:03:22,155 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1251779012] [2024-10-14 00:03:22,155 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1251779012] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 00:03:22,156 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 00:03:22,156 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 00:03:22,156 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [931542160] [2024-10-14 00:03:22,156 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 00:03:22,157 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 00:03:22,159 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 00:03:22,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 00:03:22,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 00:03:22,160 INFO L87 Difference]: Start difference. First operand 693 states and 1317 transitions. Second operand has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 2 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 00:03:25,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 00:03:25,168 INFO L93 Difference]: Finished difference Result 2075 states and 3948 transitions. [2024-10-14 00:03:25,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 00:03:25,168 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 2 states have internal predecessors, (43), 0 states have call successors, (0), 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 43 [2024-10-14 00:03:25,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 00:03:25,175 INFO L225 Difference]: With dead ends: 2075 [2024-10-14 00:03:25,175 INFO L226 Difference]: Without dead ends: 1383 [2024-10-14 00:03:25,176 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 00:03:25,177 INFO L432 NwaCegarLoop]: 459 mSDtfsCounter, 668 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 2106 mSolverCounterSat, 517 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 668 SdHoareTripleChecker+Valid, 465 SdHoareTripleChecker+Invalid, 2623 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 517 IncrementalHoareTripleChecker+Valid, 2106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2024-10-14 00:03:25,178 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [668 Valid, 465 Invalid, 2623 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [517 Valid, 2106 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2024-10-14 00:03:25,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1383 states. [2024-10-14 00:03:25,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1383 to 1383. [2024-10-14 00:03:25,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1383 states, 1382 states have (on average 1.5781476121562952) internal successors, (2181), 1382 states have internal predecessors, (2181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 00:03:25,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1383 states to 1383 states and 2181 transitions. [2024-10-14 00:03:25,236 INFO L78 Accepts]: Start accepts. Automaton has 1383 states and 2181 transitions. Word has length 43 [2024-10-14 00:03:25,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 00:03:25,236 INFO L471 AbstractCegarLoop]: Abstraction has 1383 states and 2181 transitions. [2024-10-14 00:03:25,237 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 2 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 00:03:25,238 INFO L276 IsEmpty]: Start isEmpty. Operand 1383 states and 2181 transitions. [2024-10-14 00:03:25,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-10-14 00:03:25,242 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 00:03:25,243 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, 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] [2024-10-14 00:03:25,243 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-14 00:03:25,243 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 00:03:25,244 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 00:03:25,244 INFO L85 PathProgramCache]: Analyzing trace with hash 1792273382, now seen corresponding path program 1 times [2024-10-14 00:03:25,244 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 00:03:25,244 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1872260932] [2024-10-14 00:03:25,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 00:03:25,245 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 00:03:25,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 00:03:25,413 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 41 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 00:03:25,414 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 00:03:25,415 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1872260932] [2024-10-14 00:03:25,416 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1872260932] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 00:03:25,416 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 00:03:25,416 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 00:03:25,416 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [43508023] [2024-10-14 00:03:25,416 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 00:03:25,417 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 00:03:25,418 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 00:03:25,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 00:03:25,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 00:03:25,420 INFO L87 Difference]: Start difference. First operand 1383 states and 2181 transitions. Second operand has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 2 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 00:03:28,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 00:03:28,528 INFO L93 Difference]: Finished difference Result 4145 states and 6540 transitions. [2024-10-14 00:03:28,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 00:03:28,529 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 2 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2024-10-14 00:03:28,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 00:03:28,541 INFO L225 Difference]: With dead ends: 4145 [2024-10-14 00:03:28,541 INFO L226 Difference]: Without dead ends: 2763 [2024-10-14 00:03:28,544 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 00:03:28,545 INFO L432 NwaCegarLoop]: 522 mSDtfsCounter, 713 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 1702 mSolverCounterSat, 918 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 713 SdHoareTripleChecker+Valid, 527 SdHoareTripleChecker+Invalid, 2620 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 918 IncrementalHoareTripleChecker+Valid, 1702 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2024-10-14 00:03:28,546 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [713 Valid, 527 Invalid, 2620 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [918 Valid, 1702 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2024-10-14 00:03:28,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2763 states. [2024-10-14 00:03:28,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2763 to 2763. [2024-10-14 00:03:28,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2763 states, 2762 states have (on average 1.3482983345401882) internal successors, (3724), 2762 states have internal predecessors, (3724), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 00:03:28,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2763 states to 2763 states and 3724 transitions. [2024-10-14 00:03:28,605 INFO L78 Accepts]: Start accepts. Automaton has 2763 states and 3724 transitions. Word has length 109 [2024-10-14 00:03:28,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 00:03:28,606 INFO L471 AbstractCegarLoop]: Abstraction has 2763 states and 3724 transitions. [2024-10-14 00:03:28,606 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 2 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 00:03:28,607 INFO L276 IsEmpty]: Start isEmpty. Operand 2763 states and 3724 transitions. [2024-10-14 00:03:28,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-10-14 00:03:28,608 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 00:03:28,608 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, 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] [2024-10-14 00:03:28,609 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-14 00:03:28,609 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 00:03:28,609 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 00:03:28,610 INFO L85 PathProgramCache]: Analyzing trace with hash -1353565324, now seen corresponding path program 1 times [2024-10-14 00:03:28,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 00:03:28,610 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2115036196] [2024-10-14 00:03:28,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 00:03:28,611 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 00:03:28,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 00:03:28,799 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 41 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 00:03:28,800 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 00:03:28,800 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2115036196] [2024-10-14 00:03:28,800 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2115036196] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 00:03:28,800 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 00:03:28,800 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 00:03:28,801 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1305736273] [2024-10-14 00:03:28,801 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 00:03:28,801 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 00:03:28,802 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 00:03:28,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 00:03:28,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 00:03:28,803 INFO L87 Difference]: Start difference. First operand 2763 states and 3724 transitions. Second operand has 3 states, 3 states have (on average 43.0) internal successors, (129), 2 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 00:03:31,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 00:03:31,371 INFO L93 Difference]: Finished difference Result 8287 states and 11170 transitions. [2024-10-14 00:03:31,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 00:03:31,371 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.0) internal successors, (129), 2 states have internal predecessors, (129), 0 states have call successors, (0), 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 129 [2024-10-14 00:03:31,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 00:03:31,392 INFO L225 Difference]: With dead ends: 8287 [2024-10-14 00:03:31,392 INFO L226 Difference]: Without dead ends: 5525 [2024-10-14 00:03:31,397 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 00:03:31,399 INFO L432 NwaCegarLoop]: 426 mSDtfsCounter, 690 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 1995 mSolverCounterSat, 672 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 690 SdHoareTripleChecker+Valid, 432 SdHoareTripleChecker+Invalid, 2667 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 672 IncrementalHoareTripleChecker+Valid, 1995 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-10-14 00:03:31,400 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [690 Valid, 432 Invalid, 2667 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [672 Valid, 1995 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-10-14 00:03:31,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5525 states. [2024-10-14 00:03:31,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5525 to 5523. [2024-10-14 00:03:31,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5523 states, 5522 states have (on average 1.2299891343716045) internal successors, (6792), 5522 states have internal predecessors, (6792), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 00:03:31,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5523 states to 5523 states and 6792 transitions. [2024-10-14 00:03:31,495 INFO L78 Accepts]: Start accepts. Automaton has 5523 states and 6792 transitions. Word has length 129 [2024-10-14 00:03:31,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 00:03:31,497 INFO L471 AbstractCegarLoop]: Abstraction has 5523 states and 6792 transitions. [2024-10-14 00:03:31,497 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.0) internal successors, (129), 2 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 00:03:31,497 INFO L276 IsEmpty]: Start isEmpty. Operand 5523 states and 6792 transitions. [2024-10-14 00:03:31,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-10-14 00:03:31,502 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 00:03:31,502 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, 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] [2024-10-14 00:03:31,503 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-14 00:03:31,503 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 00:03:31,503 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 00:03:31,503 INFO L85 PathProgramCache]: Analyzing trace with hash -1072416079, now seen corresponding path program 1 times [2024-10-14 00:03:31,503 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 00:03:31,503 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2005220963] [2024-10-14 00:03:31,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 00:03:31,504 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 00:03:31,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 00:03:31,932 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 41 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 00:03:31,934 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 00:03:31,934 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2005220963] [2024-10-14 00:03:31,935 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2005220963] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 00:03:31,936 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 00:03:31,936 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 00:03:31,936 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [587813178] [2024-10-14 00:03:31,936 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 00:03:31,937 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 00:03:31,939 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 00:03:31,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 00:03:31,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 00:03:31,940 INFO L87 Difference]: Start difference. First operand 5523 states and 6792 transitions. Second operand has 4 states, 4 states have (on average 34.0) internal successors, (136), 3 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 00:03:35,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 00:03:35,013 INFO L93 Difference]: Finished difference Result 12425 states and 15035 transitions. [2024-10-14 00:03:35,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 00:03:35,014 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 34.0) internal successors, (136), 3 states have internal predecessors, (136), 0 states have call successors, (0), 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 136 [2024-10-14 00:03:35,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 00:03:35,035 INFO L225 Difference]: With dead ends: 12425 [2024-10-14 00:03:35,035 INFO L226 Difference]: Without dead ends: 6903 [2024-10-14 00:03:35,042 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-14 00:03:35,043 INFO L432 NwaCegarLoop]: 621 mSDtfsCounter, 1923 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 4085 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1923 SdHoareTripleChecker+Valid, 638 SdHoareTripleChecker+Invalid, 4113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 4085 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2024-10-14 00:03:35,044 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1923 Valid, 638 Invalid, 4113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 4085 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2024-10-14 00:03:35,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6903 states. [2024-10-14 00:03:35,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6903 to 6903. [2024-10-14 00:03:35,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6903 states, 6902 states have (on average 1.191828455520139) internal successors, (8226), 6902 states have internal predecessors, (8226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 00:03:35,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6903 states to 6903 states and 8226 transitions. [2024-10-14 00:03:35,185 INFO L78 Accepts]: Start accepts. Automaton has 6903 states and 8226 transitions. Word has length 136 [2024-10-14 00:03:35,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 00:03:35,186 INFO L471 AbstractCegarLoop]: Abstraction has 6903 states and 8226 transitions. [2024-10-14 00:03:35,187 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 34.0) internal successors, (136), 3 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 00:03:35,187 INFO L276 IsEmpty]: Start isEmpty. Operand 6903 states and 8226 transitions. [2024-10-14 00:03:35,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2024-10-14 00:03:35,191 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 00:03:35,192 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 00:03:35,192 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-14 00:03:35,192 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 00:03:35,193 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 00:03:35,193 INFO L85 PathProgramCache]: Analyzing trace with hash -1980224380, now seen corresponding path program 1 times [2024-10-14 00:03:35,193 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 00:03:35,193 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [35081444] [2024-10-14 00:03:35,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 00:03:35,194 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 00:03:35,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 00:03:35,617 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 10 proven. 31 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 00:03:35,618 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 00:03:35,618 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [35081444] [2024-10-14 00:03:35,618 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [35081444] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 00:03:35,618 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [546616956] [2024-10-14 00:03:35,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 00:03:35,619 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 00:03:35,620 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 00:03:35,622 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) [2024-10-14 00:03:35,623 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-14 00:03:35,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 00:03:35,731 INFO L255 TraceCheckSpWp]: Trace formula consists of 298 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-14 00:03:35,740 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 00:03:35,839 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 41 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 00:03:35,839 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 00:03:35,839 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [546616956] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 00:03:35,840 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-14 00:03:35,840 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2024-10-14 00:03:35,842 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2179082] [2024-10-14 00:03:35,842 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 00:03:35,843 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 00:03:35,843 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 00:03:35,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 00:03:35,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-10-14 00:03:35,844 INFO L87 Difference]: Start difference. First operand 6903 states and 8226 transitions. Second operand has 3 states, 3 states have (on average 75.0) internal successors, (225), 3 states have internal predecessors, (225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 00:03:38,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 00:03:38,288 INFO L93 Difference]: Finished difference Result 18635 states and 22533 transitions. [2024-10-14 00:03:38,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 00:03:38,289 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 75.0) internal successors, (225), 3 states have internal predecessors, (225), 0 states have call successors, (0), 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 225 [2024-10-14 00:03:38,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 00:03:38,329 INFO L225 Difference]: With dead ends: 18635 [2024-10-14 00:03:38,329 INFO L226 Difference]: Without dead ends: 11733 [2024-10-14 00:03:38,340 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 228 GetRequests, 224 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-10-14 00:03:38,341 INFO L432 NwaCegarLoop]: 1314 mSDtfsCounter, 649 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 1969 mSolverCounterSat, 753 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 649 SdHoareTripleChecker+Valid, 1320 SdHoareTripleChecker+Invalid, 2722 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 753 IncrementalHoareTripleChecker+Valid, 1969 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-10-14 00:03:38,343 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [649 Valid, 1320 Invalid, 2722 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [753 Valid, 1969 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-10-14 00:03:38,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11733 states. [2024-10-14 00:03:38,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11733 to 11733. [2024-10-14 00:03:38,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11733 states, 11732 states have (on average 1.156836004091374) internal successors, (13572), 11732 states have internal predecessors, (13572), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 00:03:38,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11733 states to 11733 states and 13572 transitions. [2024-10-14 00:03:38,574 INFO L78 Accepts]: Start accepts. Automaton has 11733 states and 13572 transitions. Word has length 225 [2024-10-14 00:03:38,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 00:03:38,575 INFO L471 AbstractCegarLoop]: Abstraction has 11733 states and 13572 transitions. [2024-10-14 00:03:38,575 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 75.0) internal successors, (225), 3 states have internal predecessors, (225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 00:03:38,575 INFO L276 IsEmpty]: Start isEmpty. Operand 11733 states and 13572 transitions. [2024-10-14 00:03:38,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 344 [2024-10-14 00:03:38,579 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 00:03:38,580 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, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 00:03:38,601 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-10-14 00:03:38,780 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,SelfDestructingSolverStorable5 [2024-10-14 00:03:38,782 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 00:03:38,782 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 00:03:38,782 INFO L85 PathProgramCache]: Analyzing trace with hash 972003211, now seen corresponding path program 1 times [2024-10-14 00:03:38,783 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 00:03:38,783 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1449607801] [2024-10-14 00:03:38,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 00:03:38,783 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 00:03:38,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 00:03:39,275 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 200 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 00:03:39,276 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 00:03:39,277 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1449607801] [2024-10-14 00:03:39,277 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1449607801] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 00:03:39,279 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 00:03:39,279 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 00:03:39,279 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1117584891] [2024-10-14 00:03:39,279 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 00:03:39,280 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 00:03:39,280 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 00:03:39,281 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 00:03:39,281 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-14 00:03:39,282 INFO L87 Difference]: Start difference. First operand 11733 states and 13572 transitions. Second operand has 4 states, 4 states have (on average 85.75) internal successors, (343), 3 states have internal predecessors, (343), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 00:03:41,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 00:03:41,807 INFO L93 Difference]: Finished difference Result 26280 states and 30024 transitions. [2024-10-14 00:03:41,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 00:03:41,809 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 85.75) internal successors, (343), 3 states have internal predecessors, (343), 0 states have call successors, (0), 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 343 [2024-10-14 00:03:41,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 00:03:41,842 INFO L225 Difference]: With dead ends: 26280 [2024-10-14 00:03:41,842 INFO L226 Difference]: Without dead ends: 14495 [2024-10-14 00:03:41,857 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-14 00:03:41,858 INFO L432 NwaCegarLoop]: 624 mSDtfsCounter, 531 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 2593 mSolverCounterSat, 381 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 531 SdHoareTripleChecker+Valid, 636 SdHoareTripleChecker+Invalid, 2974 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 381 IncrementalHoareTripleChecker+Valid, 2593 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-10-14 00:03:41,859 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [531 Valid, 636 Invalid, 2974 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [381 Valid, 2593 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-10-14 00:03:41,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14495 states. [2024-10-14 00:03:42,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14495 to 14493. [2024-10-14 00:03:42,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14493 states, 14492 states have (on average 1.0973640629312724) internal successors, (15903), 14492 states have internal predecessors, (15903), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 00:03:42,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14493 states to 14493 states and 15903 transitions. [2024-10-14 00:03:42,137 INFO L78 Accepts]: Start accepts. Automaton has 14493 states and 15903 transitions. Word has length 343 [2024-10-14 00:03:42,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 00:03:42,138 INFO L471 AbstractCegarLoop]: Abstraction has 14493 states and 15903 transitions. [2024-10-14 00:03:42,138 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 85.75) internal successors, (343), 3 states have internal predecessors, (343), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 00:03:42,138 INFO L276 IsEmpty]: Start isEmpty. Operand 14493 states and 15903 transitions. [2024-10-14 00:03:42,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 429 [2024-10-14 00:03:42,144 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 00:03:42,145 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 00:03:42,145 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-14 00:03:42,146 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 00:03:42,146 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 00:03:42,146 INFO L85 PathProgramCache]: Analyzing trace with hash 567414916, now seen corresponding path program 1 times [2024-10-14 00:03:42,147 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 00:03:42,147 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1363536821] [2024-10-14 00:03:42,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 00:03:42,147 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 00:03:42,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 00:03:42,637 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 83 proven. 0 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2024-10-14 00:03:42,637 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 00:03:42,637 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1363536821] [2024-10-14 00:03:42,638 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1363536821] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 00:03:42,638 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 00:03:42,638 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 00:03:42,638 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1491314605] [2024-10-14 00:03:42,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 00:03:42,639 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 00:03:42,639 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 00:03:42,640 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 00:03:42,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 00:03:42,641 INFO L87 Difference]: Start difference. First operand 14493 states and 15903 transitions. Second operand has 3 states, 3 states have (on average 114.66666666666667) internal successors, (344), 3 states have internal predecessors, (344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 00:03:44,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 00:03:44,993 INFO L93 Difference]: Finished difference Result 33815 states and 37592 transitions. [2024-10-14 00:03:44,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 00:03:44,994 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 114.66666666666667) internal successors, (344), 3 states have internal predecessors, (344), 0 states have call successors, (0), 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 428 [2024-10-14 00:03:44,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 00:03:45,028 INFO L225 Difference]: With dead ends: 33815 [2024-10-14 00:03:45,031 INFO L226 Difference]: Without dead ends: 19323 [2024-10-14 00:03:45,048 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 00:03:45,050 INFO L432 NwaCegarLoop]: 1110 mSDtfsCounter, 649 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 1908 mSolverCounterSat, 403 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 649 SdHoareTripleChecker+Valid, 1116 SdHoareTripleChecker+Invalid, 2311 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 403 IncrementalHoareTripleChecker+Valid, 1908 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-10-14 00:03:45,051 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [649 Valid, 1116 Invalid, 2311 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [403 Valid, 1908 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-10-14 00:03:45,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19323 states. [2024-10-14 00:03:45,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19323 to 19323. [2024-10-14 00:03:45,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19323 states, 19322 states have (on average 1.0851361142738847) internal successors, (20967), 19322 states have internal predecessors, (20967), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 00:03:45,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19323 states to 19323 states and 20967 transitions. [2024-10-14 00:03:45,330 INFO L78 Accepts]: Start accepts. Automaton has 19323 states and 20967 transitions. Word has length 428 [2024-10-14 00:03:45,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 00:03:45,332 INFO L471 AbstractCegarLoop]: Abstraction has 19323 states and 20967 transitions. [2024-10-14 00:03:45,332 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 114.66666666666667) internal successors, (344), 3 states have internal predecessors, (344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 00:03:45,332 INFO L276 IsEmpty]: Start isEmpty. Operand 19323 states and 20967 transitions. [2024-10-14 00:03:45,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 461 [2024-10-14 00:03:45,339 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 00:03:45,340 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, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 00:03:45,341 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-14 00:03:45,341 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 00:03:45,342 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 00:03:45,342 INFO L85 PathProgramCache]: Analyzing trace with hash 976909876, now seen corresponding path program 1 times [2024-10-14 00:03:45,343 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 00:03:45,343 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1809337449] [2024-10-14 00:03:45,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 00:03:45,343 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 00:03:45,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 00:03:46,087 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 200 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 00:03:46,089 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 00:03:46,089 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1809337449] [2024-10-14 00:03:46,089 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1809337449] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 00:03:46,089 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 00:03:46,089 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 00:03:46,090 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1047270885] [2024-10-14 00:03:46,091 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 00:03:46,092 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 00:03:46,092 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 00:03:46,093 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 00:03:46,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 00:03:46,094 INFO L87 Difference]: Start difference. First operand 19323 states and 20967 transitions. Second operand has 3 states, 3 states have (on average 153.33333333333334) internal successors, (460), 3 states have internal predecessors, (460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 00:03:48,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 00:03:48,232 INFO L93 Difference]: Finished difference Result 47615 states and 52046 transitions. [2024-10-14 00:03:48,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 00:03:48,233 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 153.33333333333334) internal successors, (460), 3 states have internal predecessors, (460), 0 states have call successors, (0), 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 460 [2024-10-14 00:03:48,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 00:03:48,281 INFO L225 Difference]: With dead ends: 47615 [2024-10-14 00:03:48,281 INFO L226 Difference]: Without dead ends: 28293 [2024-10-14 00:03:48,307 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 00:03:48,307 INFO L432 NwaCegarLoop]: 970 mSDtfsCounter, 575 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 1956 mSolverCounterSat, 349 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 575 SdHoareTripleChecker+Valid, 976 SdHoareTripleChecker+Invalid, 2305 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 349 IncrementalHoareTripleChecker+Valid, 1956 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-10-14 00:03:48,308 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [575 Valid, 976 Invalid, 2305 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [349 Valid, 1956 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-10-14 00:03:48,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28293 states. [2024-10-14 00:03:48,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28293 to 27603. [2024-10-14 00:03:48,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27603 states, 27602 states have (on average 1.0753930874574307) internal successors, (29683), 27602 states have internal predecessors, (29683), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 00:03:48,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27603 states to 27603 states and 29683 transitions. [2024-10-14 00:03:48,768 INFO L78 Accepts]: Start accepts. Automaton has 27603 states and 29683 transitions. Word has length 460 [2024-10-14 00:03:48,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 00:03:48,769 INFO L471 AbstractCegarLoop]: Abstraction has 27603 states and 29683 transitions. [2024-10-14 00:03:48,770 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 153.33333333333334) internal successors, (460), 3 states have internal predecessors, (460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 00:03:48,770 INFO L276 IsEmpty]: Start isEmpty. Operand 27603 states and 29683 transitions. [2024-10-14 00:03:48,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 496 [2024-10-14 00:03:48,780 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 00:03:48,780 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 00:03:48,781 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-14 00:03:48,781 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 00:03:48,781 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 00:03:48,782 INFO L85 PathProgramCache]: Analyzing trace with hash 1149449771, now seen corresponding path program 1 times [2024-10-14 00:03:48,782 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 00:03:48,782 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [791805719] [2024-10-14 00:03:48,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 00:03:48,786 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 00:03:48,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 00:03:49,090 INFO L134 CoverageAnalysis]: Checked inductivity of 343 backedges. 125 proven. 0 refuted. 0 times theorem prover too weak. 218 trivial. 0 not checked. [2024-10-14 00:03:49,090 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 00:03:49,091 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [791805719] [2024-10-14 00:03:49,091 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [791805719] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 00:03:49,091 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 00:03:49,091 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 00:03:49,091 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1068837702] [2024-10-14 00:03:49,092 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 00:03:49,092 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 00:03:49,093 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 00:03:49,093 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 00:03:49,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 00:03:49,094 INFO L87 Difference]: Start difference. First operand 27603 states and 29683 transitions. Second operand has 3 states, 3 states have (on average 115.0) internal successors, (345), 3 states have internal predecessors, (345), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 00:03:50,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 00:03:50,890 INFO L93 Difference]: Finished difference Result 54515 states and 58672 transitions. [2024-10-14 00:03:50,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 00:03:50,891 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 115.0) internal successors, (345), 3 states have internal predecessors, (345), 0 states have call successors, (0), 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 495 [2024-10-14 00:03:50,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 00:03:50,938 INFO L225 Difference]: With dead ends: 54515 [2024-10-14 00:03:50,938 INFO L226 Difference]: Without dead ends: 27603 [2024-10-14 00:03:50,959 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 00:03:50,961 INFO L432 NwaCegarLoop]: 771 mSDtfsCounter, 753 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 1975 mSolverCounterSat, 191 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 753 SdHoareTripleChecker+Valid, 777 SdHoareTripleChecker+Invalid, 2166 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 191 IncrementalHoareTripleChecker+Valid, 1975 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-10-14 00:03:50,961 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [753 Valid, 777 Invalid, 2166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [191 Valid, 1975 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-10-14 00:03:50,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27603 states. [2024-10-14 00:03:51,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27603 to 27603. [2024-10-14 00:03:51,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27603 states, 27602 states have (on average 1.061662198391421) internal successors, (29304), 27602 states have internal predecessors, (29304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 00:03:51,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27603 states to 27603 states and 29304 transitions. [2024-10-14 00:03:51,351 INFO L78 Accepts]: Start accepts. Automaton has 27603 states and 29304 transitions. Word has length 495 [2024-10-14 00:03:51,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 00:03:51,352 INFO L471 AbstractCegarLoop]: Abstraction has 27603 states and 29304 transitions. [2024-10-14 00:03:51,353 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 115.0) internal successors, (345), 3 states have internal predecessors, (345), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 00:03:51,353 INFO L276 IsEmpty]: Start isEmpty. Operand 27603 states and 29304 transitions. [2024-10-14 00:03:51,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 586 [2024-10-14 00:03:51,359 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 00:03:51,360 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 00:03:51,360 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-14 00:03:51,360 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 00:03:51,361 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 00:03:51,361 INFO L85 PathProgramCache]: Analyzing trace with hash 1543056888, now seen corresponding path program 1 times [2024-10-14 00:03:51,361 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 00:03:51,361 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [25194044] [2024-10-14 00:03:51,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 00:03:51,362 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 00:03:51,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 00:03:51,820 INFO L134 CoverageAnalysis]: Checked inductivity of 627 backedges. 409 proven. 0 refuted. 0 times theorem prover too weak. 218 trivial. 0 not checked. [2024-10-14 00:03:51,820 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 00:03:51,820 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [25194044] [2024-10-14 00:03:51,821 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [25194044] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 00:03:51,821 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 00:03:51,821 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 00:03:51,821 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1819109924] [2024-10-14 00:03:51,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 00:03:51,822 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 00:03:51,822 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 00:03:51,823 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 00:03:51,823 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 00:03:51,823 INFO L87 Difference]: Start difference. First operand 27603 states and 29304 transitions. Second operand has 3 states, 3 states have (on average 145.0) internal successors, (435), 3 states have internal predecessors, (435), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 00:03:53,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 00:03:53,749 INFO L93 Difference]: Finished difference Result 59345 states and 63781 transitions. [2024-10-14 00:03:53,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 00:03:53,750 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 145.0) internal successors, (435), 3 states have internal predecessors, (435), 0 states have call successors, (0), 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 585 [2024-10-14 00:03:53,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 00:03:53,795 INFO L225 Difference]: With dead ends: 59345 [2024-10-14 00:03:53,796 INFO L226 Difference]: Without dead ends: 29673 [2024-10-14 00:03:53,819 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 00:03:53,819 INFO L432 NwaCegarLoop]: 1088 mSDtfsCounter, 609 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 1871 mSolverCounterSat, 428 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 609 SdHoareTripleChecker+Valid, 1094 SdHoareTripleChecker+Invalid, 2299 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 428 IncrementalHoareTripleChecker+Valid, 1871 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-10-14 00:03:53,820 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [609 Valid, 1094 Invalid, 2299 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [428 Valid, 1871 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-10-14 00:03:53,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29673 states. [2024-10-14 00:03:54,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29673 to 29673. [2024-10-14 00:03:54,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29673 states, 29672 states have (on average 1.0638312213534646) internal successors, (31566), 29672 states have internal predecessors, (31566), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 00:03:54,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29673 states to 29673 states and 31566 transitions. [2024-10-14 00:03:54,335 INFO L78 Accepts]: Start accepts. Automaton has 29673 states and 31566 transitions. Word has length 585 [2024-10-14 00:03:54,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 00:03:54,337 INFO L471 AbstractCegarLoop]: Abstraction has 29673 states and 31566 transitions. [2024-10-14 00:03:54,337 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 145.0) internal successors, (435), 3 states have internal predecessors, (435), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 00:03:54,338 INFO L276 IsEmpty]: Start isEmpty. Operand 29673 states and 31566 transitions. [2024-10-14 00:03:54,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 622 [2024-10-14 00:03:54,351 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 00:03:54,352 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 00:03:54,352 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-14 00:03:54,353 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 00:03:54,353 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 00:03:54,353 INFO L85 PathProgramCache]: Analyzing trace with hash 1388541586, now seen corresponding path program 1 times [2024-10-14 00:03:54,354 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 00:03:54,354 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [791477627] [2024-10-14 00:03:54,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 00:03:54,354 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 00:03:54,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 00:03:55,289 INFO L134 CoverageAnalysis]: Checked inductivity of 660 backedges. 485 proven. 32 refuted. 0 times theorem prover too weak. 143 trivial. 0 not checked. [2024-10-14 00:03:55,290 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 00:03:55,290 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [791477627] [2024-10-14 00:03:55,290 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [791477627] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 00:03:55,290 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [472609566] [2024-10-14 00:03:55,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 00:03:55,291 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 00:03:55,291 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 00:03:55,293 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) [2024-10-14 00:03:55,294 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-14 00:03:55,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 00:03:55,508 INFO L255 TraceCheckSpWp]: Trace formula consists of 772 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-14 00:03:55,529 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 00:03:55,621 INFO L134 CoverageAnalysis]: Checked inductivity of 660 backedges. 167 proven. 0 refuted. 0 times theorem prover too weak. 493 trivial. 0 not checked. [2024-10-14 00:03:55,622 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 00:03:55,622 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [472609566] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 00:03:55,622 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-14 00:03:55,622 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2024-10-14 00:03:55,623 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [974064230] [2024-10-14 00:03:55,623 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 00:03:55,624 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 00:03:55,624 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 00:03:55,625 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 00:03:55,625 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-14 00:03:55,625 INFO L87 Difference]: Start difference. First operand 29673 states and 31566 transitions. Second operand has 3 states, 3 states have (on average 117.66666666666667) internal successors, (353), 3 states have internal predecessors, (353), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 00:03:57,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 00:03:57,716 INFO L93 Difference]: Finished difference Result 65555 states and 70237 transitions. [2024-10-14 00:03:57,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 00:03:57,717 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 117.66666666666667) internal successors, (353), 3 states have internal predecessors, (353), 0 states have call successors, (0), 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 621 [2024-10-14 00:03:57,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 00:03:57,782 INFO L225 Difference]: With dead ends: 65555 [2024-10-14 00:03:57,782 INFO L226 Difference]: Without dead ends: 35883 [2024-10-14 00:03:57,810 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 624 GetRequests, 621 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-14 00:03:57,811 INFO L432 NwaCegarLoop]: 995 mSDtfsCounter, 659 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 2066 mSolverCounterSat, 323 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 659 SdHoareTripleChecker+Valid, 1001 SdHoareTripleChecker+Invalid, 2389 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 323 IncrementalHoareTripleChecker+Valid, 2066 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-10-14 00:03:57,811 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [659 Valid, 1001 Invalid, 2389 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [323 Valid, 2066 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-10-14 00:03:57,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35883 states. [2024-10-14 00:03:58,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35883 to 35193. [2024-10-14 00:03:58,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35193 states, 35192 states have (on average 1.0690213684928394) internal successors, (37621), 35192 states have internal predecessors, (37621), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 00:03:58,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35193 states to 35193 states and 37621 transitions. [2024-10-14 00:03:58,224 INFO L78 Accepts]: Start accepts. Automaton has 35193 states and 37621 transitions. Word has length 621 [2024-10-14 00:03:58,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 00:03:58,225 INFO L471 AbstractCegarLoop]: Abstraction has 35193 states and 37621 transitions. [2024-10-14 00:03:58,225 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 117.66666666666667) internal successors, (353), 3 states have internal predecessors, (353), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 00:03:58,225 INFO L276 IsEmpty]: Start isEmpty. Operand 35193 states and 37621 transitions. [2024-10-14 00:03:58,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 897 [2024-10-14 00:03:58,264 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 00:03:58,264 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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, 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, 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, 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, 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, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 00:03:58,285 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-10-14 00:03:58,468 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,SelfDestructingSolverStorable11 [2024-10-14 00:03:58,470 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 00:03:58,470 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 00:03:58,470 INFO L85 PathProgramCache]: Analyzing trace with hash 74011320, now seen corresponding path program 1 times [2024-10-14 00:03:58,471 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 00:03:58,471 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1705871634] [2024-10-14 00:03:58,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 00:03:58,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 00:03:58,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 00:04:00,672 INFO L134 CoverageAnalysis]: Checked inductivity of 665 backedges. 621 proven. 2 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2024-10-14 00:04:00,672 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 00:04:00,672 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1705871634] [2024-10-14 00:04:00,672 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1705871634] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 00:04:00,672 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [609661626] [2024-10-14 00:04:00,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 00:04:00,673 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 00:04:00,673 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 00:04:00,675 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) [2024-10-14 00:04:00,677 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-14 00:04:00,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 00:04:00,976 INFO L255 TraceCheckSpWp]: Trace formula consists of 1029 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-14 00:04:00,993 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 00:04:01,508 INFO L134 CoverageAnalysis]: Checked inductivity of 665 backedges. 548 proven. 0 refuted. 0 times theorem prover too weak. 117 trivial. 0 not checked. [2024-10-14 00:04:01,508 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 00:04:01,508 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [609661626] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 00:04:01,508 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-14 00:04:01,508 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 8 [2024-10-14 00:04:01,509 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [215465467] [2024-10-14 00:04:01,509 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 00:04:01,510 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 00:04:01,510 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 00:04:01,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 00:04:01,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-10-14 00:04:01,512 INFO L87 Difference]: Start difference. First operand 35193 states and 37621 transitions. Second operand has 3 states, 3 states have (on average 260.0) internal successors, (780), 3 states have internal predecessors, (780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 00:04:03,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 00:04:03,650 INFO L93 Difference]: Finished difference Result 80735 states and 87226 transitions. [2024-10-14 00:04:03,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 00:04:03,651 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 260.0) internal successors, (780), 3 states have internal predecessors, (780), 0 states have call successors, (0), 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 896 [2024-10-14 00:04:03,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 00:04:03,718 INFO L225 Difference]: With dead ends: 80735 [2024-10-14 00:04:03,719 INFO L226 Difference]: Without dead ends: 46233 [2024-10-14 00:04:03,756 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 901 GetRequests, 895 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-10-14 00:04:03,757 INFO L432 NwaCegarLoop]: 213 mSDtfsCounter, 341 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 1840 mSolverCounterSat, 449 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 341 SdHoareTripleChecker+Valid, 218 SdHoareTripleChecker+Invalid, 2289 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 449 IncrementalHoareTripleChecker+Valid, 1840 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-10-14 00:04:03,757 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [341 Valid, 218 Invalid, 2289 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [449 Valid, 1840 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-10-14 00:04:03,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46233 states. [2024-10-14 00:04:04,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46233 to 46233. [2024-10-14 00:04:04,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46233 states, 46232 states have (on average 1.0719415123723828) internal successors, (49558), 46232 states have internal predecessors, (49558), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 00:04:04,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46233 states to 46233 states and 49558 transitions. [2024-10-14 00:04:04,333 INFO L78 Accepts]: Start accepts. Automaton has 46233 states and 49558 transitions. Word has length 896 [2024-10-14 00:04:04,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 00:04:04,335 INFO L471 AbstractCegarLoop]: Abstraction has 46233 states and 49558 transitions. [2024-10-14 00:04:04,335 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 260.0) internal successors, (780), 3 states have internal predecessors, (780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 00:04:04,335 INFO L276 IsEmpty]: Start isEmpty. Operand 46233 states and 49558 transitions. [2024-10-14 00:04:04,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 922 [2024-10-14 00:04:04,371 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 00:04:04,372 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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, 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, 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, 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, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 00:04:04,392 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-10-14 00:04:04,575 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 00:04:04,576 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 00:04:04,576 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 00:04:04,577 INFO L85 PathProgramCache]: Analyzing trace with hash -798655060, now seen corresponding path program 1 times [2024-10-14 00:04:04,577 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 00:04:04,577 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [616480796] [2024-10-14 00:04:04,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 00:04:04,577 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 00:04:04,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 00:04:05,716 INFO L134 CoverageAnalysis]: Checked inductivity of 916 backedges. 741 proven. 32 refuted. 0 times theorem prover too weak. 143 trivial. 0 not checked. [2024-10-14 00:04:05,716 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 00:04:05,717 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [616480796] [2024-10-14 00:04:05,717 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [616480796] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 00:04:05,717 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [995480121] [2024-10-14 00:04:05,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 00:04:05,717 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 00:04:05,720 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 00:04:05,722 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) [2024-10-14 00:04:05,724 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-14 00:04:06,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 00:04:06,014 INFO L255 TraceCheckSpWp]: Trace formula consists of 1079 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-14 00:04:06,026 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 00:04:06,478 INFO L134 CoverageAnalysis]: Checked inductivity of 916 backedges. 660 proven. 0 refuted. 0 times theorem prover too weak. 256 trivial. 0 not checked. [2024-10-14 00:04:06,479 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 00:04:06,479 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [995480121] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 00:04:06,479 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-14 00:04:06,479 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2024-10-14 00:04:06,479 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [129460538] [2024-10-14 00:04:06,479 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 00:04:06,480 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 00:04:06,480 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 00:04:06,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 00:04:06,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-14 00:04:06,482 INFO L87 Difference]: Start difference. First operand 46233 states and 49558 transitions. Second operand has 3 states, 3 states have (on average 245.33333333333334) internal successors, (736), 3 states have internal predecessors, (736), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 00:04:08,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 00:04:08,345 INFO L93 Difference]: Finished difference Result 91775 states and 98422 transitions. [2024-10-14 00:04:08,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 00:04:08,345 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 245.33333333333334) internal successors, (736), 3 states have internal predecessors, (736), 0 states have call successors, (0), 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 921 [2024-10-14 00:04:08,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 00:04:08,405 INFO L225 Difference]: With dead ends: 91775 [2024-10-14 00:04:08,405 INFO L226 Difference]: Without dead ends: 46233 [2024-10-14 00:04:08,438 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 924 GetRequests, 921 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-14 00:04:08,438 INFO L432 NwaCegarLoop]: 983 mSDtfsCounter, 374 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 1810 mSolverCounterSat, 301 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 374 SdHoareTripleChecker+Valid, 989 SdHoareTripleChecker+Invalid, 2111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 301 IncrementalHoareTripleChecker+Valid, 1810 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-10-14 00:04:08,439 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [374 Valid, 989 Invalid, 2111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [301 Valid, 1810 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-10-14 00:04:08,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46233 states. [2024-10-14 00:04:08,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46233 to 46233. [2024-10-14 00:04:08,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46233 states, 46232 states have (on average 1.04970583145873) internal successors, (48530), 46232 states have internal predecessors, (48530), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 00:04:09,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46233 states to 46233 states and 48530 transitions. [2024-10-14 00:04:09,036 INFO L78 Accepts]: Start accepts. Automaton has 46233 states and 48530 transitions. Word has length 921 [2024-10-14 00:04:09,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 00:04:09,037 INFO L471 AbstractCegarLoop]: Abstraction has 46233 states and 48530 transitions. [2024-10-14 00:04:09,037 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 245.33333333333334) internal successors, (736), 3 states have internal predecessors, (736), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 00:04:09,037 INFO L276 IsEmpty]: Start isEmpty. Operand 46233 states and 48530 transitions. [2024-10-14 00:04:09,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 948 [2024-10-14 00:04:09,066 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 00:04:09,066 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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, 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, 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, 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, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 00:04:09,083 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-10-14 00:04:09,267 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 00:04:09,267 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 00:04:09,268 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 00:04:09,268 INFO L85 PathProgramCache]: Analyzing trace with hash -1149006368, now seen corresponding path program 1 times [2024-10-14 00:04:09,268 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 00:04:09,268 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1065859407] [2024-10-14 00:04:09,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 00:04:09,268 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 00:04:09,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 00:04:10,953 INFO L134 CoverageAnalysis]: Checked inductivity of 991 backedges. 784 proven. 2 refuted. 0 times theorem prover too weak. 205 trivial. 0 not checked. [2024-10-14 00:04:10,953 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 00:04:10,953 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1065859407] [2024-10-14 00:04:10,953 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1065859407] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 00:04:10,954 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [117377715] [2024-10-14 00:04:10,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 00:04:10,954 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 00:04:10,954 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 00:04:10,956 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) [2024-10-14 00:04:10,958 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-10-14 00:04:11,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 00:04:11,198 INFO L255 TraceCheckSpWp]: Trace formula consists of 1104 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-14 00:04:11,207 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 00:04:11,634 INFO L134 CoverageAnalysis]: Checked inductivity of 991 backedges. 686 proven. 0 refuted. 0 times theorem prover too weak. 305 trivial. 0 not checked. [2024-10-14 00:04:11,634 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 00:04:11,634 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [117377715] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 00:04:11,634 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-14 00:04:11,635 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 8 [2024-10-14 00:04:11,635 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1903455054] [2024-10-14 00:04:11,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 00:04:11,636 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 00:04:11,636 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 00:04:11,637 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 00:04:11,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-10-14 00:04:11,637 INFO L87 Difference]: Start difference. First operand 46233 states and 48530 transitions. Second operand has 3 states, 3 states have (on average 245.33333333333334) internal successors, (736), 3 states have internal predecessors, (736), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 00:04:13,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 00:04:13,712 INFO L93 Difference]: Finished difference Result 101435 states and 107166 transitions. [2024-10-14 00:04:13,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 00:04:13,713 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 245.33333333333334) internal successors, (736), 3 states have internal predecessors, (736), 0 states have call successors, (0), 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 947 [2024-10-14 00:04:13,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 00:04:13,784 INFO L225 Difference]: With dead ends: 101435 [2024-10-14 00:04:13,784 INFO L226 Difference]: Without dead ends: 51063 [2024-10-14 00:04:13,818 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 952 GetRequests, 946 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-10-14 00:04:13,819 INFO L432 NwaCegarLoop]: 1051 mSDtfsCounter, 337 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 1677 mSolverCounterSat, 574 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 337 SdHoareTripleChecker+Valid, 1057 SdHoareTripleChecker+Invalid, 2251 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 574 IncrementalHoareTripleChecker+Valid, 1677 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-10-14 00:04:13,819 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [337 Valid, 1057 Invalid, 2251 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [574 Valid, 1677 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-10-14 00:04:13,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51063 states. [2024-10-14 00:04:14,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51063 to 48993. [2024-10-14 00:04:14,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48993 states, 48992 states have (on average 1.0311071195297192) internal successors, (50516), 48992 states have internal predecessors, (50516), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 00:04:14,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48993 states to 48993 states and 50516 transitions. [2024-10-14 00:04:14,556 INFO L78 Accepts]: Start accepts. Automaton has 48993 states and 50516 transitions. Word has length 947 [2024-10-14 00:04:14,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 00:04:14,557 INFO L471 AbstractCegarLoop]: Abstraction has 48993 states and 50516 transitions. [2024-10-14 00:04:14,557 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 245.33333333333334) internal successors, (736), 3 states have internal predecessors, (736), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 00:04:14,558 INFO L276 IsEmpty]: Start isEmpty. Operand 48993 states and 50516 transitions. [2024-10-14 00:04:14,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 994 [2024-10-14 00:04:14,593 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 00:04:14,593 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 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, 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, 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, 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, 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, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 00:04:14,609 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-10-14 00:04:14,794 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-10-14 00:04:14,795 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 00:04:14,795 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 00:04:14,795 INFO L85 PathProgramCache]: Analyzing trace with hash -1169795344, now seen corresponding path program 1 times [2024-10-14 00:04:14,796 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 00:04:14,796 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [797659330] [2024-10-14 00:04:14,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 00:04:14,796 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 00:04:14,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 00:04:15,744 INFO L134 CoverageAnalysis]: Checked inductivity of 1151 backedges. 210 proven. 0 refuted. 0 times theorem prover too weak. 941 trivial. 0 not checked. [2024-10-14 00:04:15,744 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 00:04:15,745 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [797659330] [2024-10-14 00:04:15,745 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [797659330] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 00:04:15,745 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 00:04:15,745 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 00:04:15,745 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2141857748] [2024-10-14 00:04:15,745 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 00:04:15,746 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 00:04:15,746 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 00:04:15,747 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 00:04:15,747 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 00:04:15,747 INFO L87 Difference]: Start difference. First operand 48993 states and 50516 transitions. Second operand has 3 states, 3 states have (on average 159.33333333333334) internal successors, (478), 3 states have internal predecessors, (478), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 00:04:17,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 00:04:17,685 INFO L93 Difference]: Finished difference Result 118685 states and 122532 transitions. [2024-10-14 00:04:17,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 00:04:17,685 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 159.33333333333334) internal successors, (478), 3 states have internal predecessors, (478), 0 states have call successors, (0), 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 993 [2024-10-14 00:04:17,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 00:04:17,765 INFO L225 Difference]: With dead ends: 118685 [2024-10-14 00:04:17,765 INFO L226 Difference]: Without dead ends: 70383 [2024-10-14 00:04:17,784 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 00:04:17,785 INFO L432 NwaCegarLoop]: 909 mSDtfsCounter, 675 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 1789 mSolverCounterSat, 173 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 675 SdHoareTripleChecker+Valid, 915 SdHoareTripleChecker+Invalid, 1962 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 173 IncrementalHoareTripleChecker+Valid, 1789 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-10-14 00:04:17,785 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [675 Valid, 915 Invalid, 1962 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [173 Valid, 1789 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-10-14 00:04:17,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70383 states. [2024-10-14 00:04:18,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70383 to 70383. [2024-10-14 00:04:18,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70383 states, 70382 states have (on average 1.0282884828507288) internal successors, (72373), 70382 states have internal predecessors, (72373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 00:04:18,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70383 states to 70383 states and 72373 transitions. [2024-10-14 00:04:18,465 INFO L78 Accepts]: Start accepts. Automaton has 70383 states and 72373 transitions. Word has length 993 [2024-10-14 00:04:18,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 00:04:18,466 INFO L471 AbstractCegarLoop]: Abstraction has 70383 states and 72373 transitions. [2024-10-14 00:04:18,466 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 159.33333333333334) internal successors, (478), 3 states have internal predecessors, (478), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 00:04:18,466 INFO L276 IsEmpty]: Start isEmpty. Operand 70383 states and 72373 transitions. [2024-10-14 00:04:18,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1204 [2024-10-14 00:04:18,792 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 00:04:18,793 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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, 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, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 00:04:18,793 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-10-14 00:04:18,793 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 00:04:18,794 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 00:04:18,794 INFO L85 PathProgramCache]: Analyzing trace with hash -1424437467, now seen corresponding path program 1 times [2024-10-14 00:04:18,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 00:04:18,794 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1616915769] [2024-10-14 00:04:18,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 00:04:18,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 00:04:19,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 00:04:19,684 INFO L134 CoverageAnalysis]: Checked inductivity of 1623 backedges. 1311 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-10-14 00:04:19,685 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 00:04:19,685 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1616915769] [2024-10-14 00:04:19,685 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1616915769] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 00:04:19,685 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 00:04:19,685 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 00:04:19,685 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1053735474] [2024-10-14 00:04:19,686 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 00:04:19,689 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 00:04:19,689 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 00:04:19,690 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 00:04:19,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 00:04:19,691 INFO L87 Difference]: Start difference. First operand 70383 states and 72373 transitions. Second operand has 3 states, 3 states have (on average 297.6666666666667) internal successors, (893), 3 states have internal predecessors, (893), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 00:04:21,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 00:04:21,636 INFO L93 Difference]: Finished difference Result 139385 states and 143327 transitions. [2024-10-14 00:04:21,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 00:04:21,637 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 297.6666666666667) internal successors, (893), 3 states have internal predecessors, (893), 0 states have call successors, (0), 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 1203 [2024-10-14 00:04:21,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 00:04:21,765 INFO L225 Difference]: With dead ends: 139385 [2024-10-14 00:04:21,765 INFO L226 Difference]: Without dead ends: 69693 [2024-10-14 00:04:21,820 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 00:04:21,821 INFO L432 NwaCegarLoop]: 55 mSDtfsCounter, 504 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 1700 mSolverCounterSat, 277 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 504 SdHoareTripleChecker+Valid, 60 SdHoareTripleChecker+Invalid, 1977 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 277 IncrementalHoareTripleChecker+Valid, 1700 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-10-14 00:04:21,821 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [504 Valid, 60 Invalid, 1977 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [277 Valid, 1700 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-10-14 00:04:21,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69693 states. [2024-10-14 00:04:22,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69693 to 69003. [2024-10-14 00:04:22,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69003 states, 69002 states have (on average 1.0274774644213212) internal successors, (70898), 69002 states have internal predecessors, (70898), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 00:04:22,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69003 states to 69003 states and 70898 transitions. [2024-10-14 00:04:22,926 INFO L78 Accepts]: Start accepts. Automaton has 69003 states and 70898 transitions. Word has length 1203 [2024-10-14 00:04:22,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 00:04:22,927 INFO L471 AbstractCegarLoop]: Abstraction has 69003 states and 70898 transitions. [2024-10-14 00:04:22,927 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 297.6666666666667) internal successors, (893), 3 states have internal predecessors, (893), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 00:04:22,927 INFO L276 IsEmpty]: Start isEmpty. Operand 69003 states and 70898 transitions. [2024-10-14 00:04:22,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1231 [2024-10-14 00:04:22,968 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 00:04:22,968 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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, 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, 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, 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, 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, 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, 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, 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, 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] [2024-10-14 00:04:22,968 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-10-14 00:04:22,968 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 00:04:22,969 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 00:04:22,969 INFO L85 PathProgramCache]: Analyzing trace with hash -370542191, now seen corresponding path program 1 times [2024-10-14 00:04:22,969 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 00:04:22,969 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [922355659] [2024-10-14 00:04:22,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 00:04:22,969 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 00:04:23,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 00:04:25,306 INFO L134 CoverageAnalysis]: Checked inductivity of 1509 backedges. 1044 proven. 2 refuted. 0 times theorem prover too weak. 463 trivial. 0 not checked. [2024-10-14 00:04:25,307 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 00:04:25,307 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [922355659] [2024-10-14 00:04:25,307 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [922355659] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 00:04:25,307 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [789214360] [2024-10-14 00:04:25,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 00:04:25,307 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 00:04:25,308 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 00:04:25,309 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) [2024-10-14 00:04:25,311 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-10-14 00:04:25,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 00:04:25,672 INFO L255 TraceCheckSpWp]: Trace formula consists of 1392 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-14 00:04:25,684 INFO L278 TraceCheckSpWp]: Computing forward predicates...