./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-cn_file-31.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8be7027f Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-cn_file-31.i -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 d39179efc28fccc153e100042d7b324f767a1fca5c4b8e10ed55a1e034da2fb7 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dk.perfect-tracechecks-8be7027-m [2024-11-12 04:04:15,337 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-12 04:04:15,435 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-12 04:04:15,439 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-12 04:04:15,440 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-12 04:04:15,473 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-12 04:04:15,474 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-12 04:04:15,474 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-12 04:04:15,475 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-12 04:04:15,477 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-12 04:04:15,477 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-12 04:04:15,478 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-12 04:04:15,478 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-12 04:04:15,479 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-12 04:04:15,481 INFO L153 SettingsManager]: * Use SBE=true [2024-11-12 04:04:15,482 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-12 04:04:15,482 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-12 04:04:15,482 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-12 04:04:15,483 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-12 04:04:15,483 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-12 04:04:15,483 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-12 04:04:15,484 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-12 04:04:15,488 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-12 04:04:15,489 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-12 04:04:15,489 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-12 04:04:15,489 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-12 04:04:15,489 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-12 04:04:15,490 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-12 04:04:15,490 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-12 04:04:15,490 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-12 04:04:15,490 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-12 04:04:15,491 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-12 04:04:15,491 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-12 04:04:15,492 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-12 04:04:15,492 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-12 04:04:15,493 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-12 04:04:15,493 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-12 04:04:15,494 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-12 04:04:15,494 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-12 04:04:15,494 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-12 04:04:15,495 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-12 04:04:15,496 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-12 04:04:15,496 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d39179efc28fccc153e100042d7b324f767a1fca5c4b8e10ed55a1e034da2fb7 [2024-11-12 04:04:15,745 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-12 04:04:15,772 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-12 04:04:15,776 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-12 04:04:15,778 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-12 04:04:15,778 INFO L274 PluginConnector]: CDTParser initialized [2024-11-12 04:04:15,779 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-cn_file-31.i [2024-11-12 04:04:17,330 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-12 04:04:17,560 INFO L384 CDTParser]: Found 1 translation units. [2024-11-12 04:04:17,563 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-cn_file-31.i [2024-11-12 04:04:17,586 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6db3b710f/ebc93e8117174a31a68da691b08165d9/FLAG156b0c172 [2024-11-12 04:04:17,908 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6db3b710f/ebc93e8117174a31a68da691b08165d9 [2024-11-12 04:04:17,911 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-12 04:04:17,912 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-12 04:04:17,913 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-12 04:04:17,913 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-12 04:04:17,918 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-12 04:04:17,919 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 04:04:17" (1/1) ... [2024-11-12 04:04:17,919 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@25cd3b79 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:04:17, skipping insertion in model container [2024-11-12 04:04:17,920 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 04:04:17" (1/1) ... [2024-11-12 04:04:17,954 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-12 04:04:18,138 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-cn_file-31.i[919,932] [2024-11-12 04:04:18,262 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-12 04:04:18,283 INFO L200 MainTranslator]: Completed pre-run [2024-11-12 04:04:18,298 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-cn_file-31.i[919,932] [2024-11-12 04:04:18,348 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-12 04:04:18,375 INFO L204 MainTranslator]: Completed translation [2024-11-12 04:04:18,376 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:04:18 WrapperNode [2024-11-12 04:04:18,376 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-12 04:04:18,381 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-12 04:04:18,381 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-12 04:04:18,381 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-12 04:04:18,392 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:04:18" (1/1) ... [2024-11-12 04:04:18,404 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:04:18" (1/1) ... [2024-11-12 04:04:18,450 INFO L138 Inliner]: procedures = 26, calls = 67, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 287 [2024-11-12 04:04:18,451 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-12 04:04:18,452 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-12 04:04:18,452 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-12 04:04:18,452 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-12 04:04:18,464 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:04:18" (1/1) ... [2024-11-12 04:04:18,464 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:04:18" (1/1) ... [2024-11-12 04:04:18,470 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:04:18" (1/1) ... [2024-11-12 04:04:18,499 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-12 04:04:18,499 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:04:18" (1/1) ... [2024-11-12 04:04:18,499 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:04:18" (1/1) ... [2024-11-12 04:04:18,517 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:04:18" (1/1) ... [2024-11-12 04:04:18,536 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:04:18" (1/1) ... [2024-11-12 04:04:18,540 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:04:18" (1/1) ... [2024-11-12 04:04:18,548 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:04:18" (1/1) ... [2024-11-12 04:04:18,562 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-12 04:04:18,563 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-12 04:04:18,563 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-12 04:04:18,563 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-12 04:04:18,565 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:04:18" (1/1) ... [2024-11-12 04:04:18,570 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-12 04:04:18,584 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 04:04:18,601 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-12 04:04:18,638 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-12 04:04:18,687 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-12 04:04:18,688 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-12 04:04:18,688 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-12 04:04:18,689 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-12 04:04:18,689 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-12 04:04:18,689 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-12 04:04:18,778 INFO L238 CfgBuilder]: Building ICFG [2024-11-12 04:04:18,780 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-12 04:04:19,297 INFO L? ?]: Removed 14 outVars from TransFormulas that were not future-live. [2024-11-12 04:04:19,297 INFO L287 CfgBuilder]: Performing block encoding [2024-11-12 04:04:19,317 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-12 04:04:19,318 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-12 04:04:19,318 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 04:04:19 BoogieIcfgContainer [2024-11-12 04:04:19,318 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-12 04:04:19,321 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-12 04:04:19,321 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-12 04:04:19,325 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-12 04:04:19,325 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 04:04:17" (1/3) ... [2024-11-12 04:04:19,326 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28922ab0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 04:04:19, skipping insertion in model container [2024-11-12 04:04:19,326 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:04:18" (2/3) ... [2024-11-12 04:04:19,327 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28922ab0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 04:04:19, skipping insertion in model container [2024-11-12 04:04:19,327 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 04:04:19" (3/3) ... [2024-11-12 04:04:19,328 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-ps-cn_file-31.i [2024-11-12 04:04:19,347 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-12 04:04:19,348 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-12 04:04:19,413 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-12 04:04:19,419 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;@784f278a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-12 04:04:19,419 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-12 04:04:19,424 INFO L276 IsEmpty]: Start isEmpty. Operand has 130 states, 73 states have (on average 1.36986301369863) internal successors, (100), 74 states have internal predecessors, (100), 54 states have call successors, (54), 1 states have call predecessors, (54), 1 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2024-11-12 04:04:19,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 325 [2024-11-12 04:04:19,442 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 04:04:19,443 INFO L218 NwaCegarLoop]: trace histogram [54, 54, 54, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 04:04:19,444 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 04:04:19,450 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 04:04:19,451 INFO L85 PathProgramCache]: Analyzing trace with hash 586496167, now seen corresponding path program 1 times [2024-11-12 04:04:19,460 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 04:04:19,461 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [495352026] [2024-11-12 04:04:19,461 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 04:04:19,461 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 04:04:19,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:04:19,837 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-12 04:04:19,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:04:19,850 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-12 04:04:19,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:04:19,862 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-12 04:04:19,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:04:19,871 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-12 04:04:19,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:04:19,883 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-12 04:04:19,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:04:19,893 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-12 04:04:19,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:04:19,897 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-12 04:04:19,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:04:19,902 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-12 04:04:19,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:04:19,907 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-12 04:04:19,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:04:19,915 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-12 04:04:19,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:04:19,923 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-12 04:04:19,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:04:19,932 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-12 04:04:19,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:04:19,940 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-12 04:04:19,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:04:19,949 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-12 04:04:19,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:04:19,954 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-12 04:04:19,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:04:19,957 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-12 04:04:19,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:04:19,961 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-12 04:04:19,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:04:19,964 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-12 04:04:19,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:04:19,967 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-12 04:04:19,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:04:19,971 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-12 04:04:19,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:04:19,978 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-11-12 04:04:19,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:04:19,983 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-12 04:04:19,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:04:19,993 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-11-12 04:04:20,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:04:20,002 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-11-12 04:04:20,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:04:20,014 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-11-12 04:04:20,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:04:20,021 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2024-11-12 04:04:20,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:04:20,028 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2024-11-12 04:04:20,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:04:20,033 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-11-12 04:04:20,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:04:20,039 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2024-11-12 04:04:20,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:04:20,043 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2024-11-12 04:04:20,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:04:20,047 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2024-11-12 04:04:20,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:04:20,055 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2024-11-12 04:04:20,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:04:20,061 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2024-11-12 04:04:20,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:04:20,071 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2024-11-12 04:04:20,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:04:20,075 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2024-11-12 04:04:20,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:04:20,091 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2024-11-12 04:04:20,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:04:20,099 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2024-11-12 04:04:20,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:04:20,107 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2024-11-12 04:04:20,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:04:20,114 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2024-11-12 04:04:20,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:04:20,122 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2024-11-12 04:04:20,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:04:20,129 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2024-11-12 04:04:20,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:04:20,137 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2024-11-12 04:04:20,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:04:20,143 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2024-11-12 04:04:20,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:04:20,149 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2024-11-12 04:04:20,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:04:20,159 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2024-11-12 04:04:20,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:04:20,167 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2024-11-12 04:04:20,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:04:20,171 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 259 [2024-11-12 04:04:20,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:04:20,178 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 265 [2024-11-12 04:04:20,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:04:20,185 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2024-11-12 04:04:20,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:04:20,192 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 276 [2024-11-12 04:04:20,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:04:20,197 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 281 [2024-11-12 04:04:20,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:04:20,204 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2024-11-12 04:04:20,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:04:20,208 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 292 [2024-11-12 04:04:20,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:04:20,213 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 298 [2024-11-12 04:04:20,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:04:20,225 INFO L134 CoverageAnalysis]: Checked inductivity of 5724 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5724 trivial. 0 not checked. [2024-11-12 04:04:20,227 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 04:04:20,227 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [495352026] [2024-11-12 04:04:20,228 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [495352026] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 04:04:20,228 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 04:04:20,229 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-12 04:04:20,231 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2132573140] [2024-11-12 04:04:20,232 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 04:04:20,239 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-12 04:04:20,241 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 04:04:20,265 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-12 04:04:20,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-12 04:04:20,268 INFO L87 Difference]: Start difference. First operand has 130 states, 73 states have (on average 1.36986301369863) internal successors, (100), 74 states have internal predecessors, (100), 54 states have call successors, (54), 1 states have call predecessors, (54), 1 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) Second operand has 2 states, 2 states have (on average 28.5) internal successors, (57), 2 states have internal predecessors, (57), 2 states have call successors, (54), 1 states have call predecessors, (54), 1 states have return successors, (54), 1 states have call predecessors, (54), 2 states have call successors, (54) [2024-11-12 04:04:20,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 04:04:20,316 INFO L93 Difference]: Finished difference Result 253 states and 464 transitions. [2024-11-12 04:04:20,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-12 04:04:20,320 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 28.5) internal successors, (57), 2 states have internal predecessors, (57), 2 states have call successors, (54), 1 states have call predecessors, (54), 1 states have return successors, (54), 1 states have call predecessors, (54), 2 states have call successors, (54) Word has length 324 [2024-11-12 04:04:20,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 04:04:20,331 INFO L225 Difference]: With dead ends: 253 [2024-11-12 04:04:20,333 INFO L226 Difference]: Without dead ends: 126 [2024-11-12 04:04:20,339 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 164 GetRequests, 164 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-12 04:04:20,344 INFO L435 NwaCegarLoop]: 201 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 201 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-12 04:04:20,346 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 201 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-12 04:04:20,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2024-11-12 04:04:20,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 126. [2024-11-12 04:04:20,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 126 states, 70 states have (on average 1.3285714285714285) internal successors, (93), 70 states have internal predecessors, (93), 54 states have call successors, (54), 1 states have call predecessors, (54), 1 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2024-11-12 04:04:20,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 201 transitions. [2024-11-12 04:04:20,417 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 201 transitions. Word has length 324 [2024-11-12 04:04:20,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 04:04:20,418 INFO L471 AbstractCegarLoop]: Abstraction has 126 states and 201 transitions. [2024-11-12 04:04:20,418 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 28.5) internal successors, (57), 2 states have internal predecessors, (57), 2 states have call successors, (54), 1 states have call predecessors, (54), 1 states have return successors, (54), 1 states have call predecessors, (54), 2 states have call successors, (54) [2024-11-12 04:04:20,418 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 201 transitions. [2024-11-12 04:04:20,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 325 [2024-11-12 04:04:20,425 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 04:04:20,425 INFO L218 NwaCegarLoop]: trace histogram [54, 54, 54, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 04:04:20,426 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-12 04:04:20,426 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 04:04:20,427 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 04:04:20,427 INFO L85 PathProgramCache]: Analyzing trace with hash 1175332395, now seen corresponding path program 1 times [2024-11-12 04:04:20,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 04:04:20,428 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1656304955] [2024-11-12 04:04:20,428 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 04:04:20,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 04:04:20,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:04:20,760 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-12 04:04:20,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:04:20,765 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-12 04:04:20,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:04:20,769 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-12 04:04:20,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:04:20,772 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-12 04:04:20,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:04:20,776 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-12 04:04:20,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:04:20,779 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-12 04:04:20,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:04:20,782 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-12 04:04:20,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:04:20,786 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-12 04:04:20,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:04:20,789 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-12 04:04:20,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:04:20,792 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-12 04:04:20,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:04:20,796 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-12 04:04:20,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:04:20,801 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-12 04:04:20,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:04:20,803 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-12 04:04:20,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:04:20,806 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-12 04:04:20,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:04:20,809 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-12 04:04:20,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:04:20,813 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-12 04:04:20,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:04:20,819 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-12 04:04:20,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:04:20,822 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-12 04:04:20,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:04:20,824 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-12 04:04:20,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:04:20,828 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-12 04:04:20,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:04:20,831 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-11-12 04:04:20,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:04:20,834 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-12 04:04:20,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:04:20,837 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-11-12 04:04:20,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:04:20,840 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-11-12 04:04:20,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:04:20,843 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-11-12 04:04:20,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:04:20,848 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2024-11-12 04:04:20,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:04:20,852 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2024-11-12 04:04:20,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:04:20,856 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-11-12 04:04:20,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:04:20,861 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2024-11-12 04:04:20,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:04:20,865 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2024-11-12 04:04:20,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:04:20,872 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2024-11-12 04:04:20,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:04:20,877 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2024-11-12 04:04:20,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:04:20,883 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2024-11-12 04:04:20,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:04:20,886 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2024-11-12 04:04:20,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:04:20,890 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2024-11-12 04:04:20,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:04:20,895 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2024-11-12 04:04:20,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:04:20,899 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2024-11-12 04:04:20,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:04:20,902 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2024-11-12 04:04:20,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:04:20,905 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2024-11-12 04:04:20,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:04:20,909 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2024-11-12 04:04:20,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:04:20,914 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2024-11-12 04:04:20,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:04:20,918 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2024-11-12 04:04:20,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:04:20,923 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2024-11-12 04:04:20,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:04:20,927 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2024-11-12 04:04:20,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:04:20,932 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2024-11-12 04:04:20,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:04:20,937 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2024-11-12 04:04:20,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:04:20,941 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 259 [2024-11-12 04:04:20,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:04:20,947 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 265 [2024-11-12 04:04:20,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:04:20,950 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2024-11-12 04:04:20,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:04:20,954 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 276 [2024-11-12 04:04:20,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:04:20,957 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 281 [2024-11-12 04:04:20,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:04:20,962 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2024-11-12 04:04:20,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:04:20,966 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 292 [2024-11-12 04:04:20,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:04:20,970 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 298 [2024-11-12 04:04:20,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:04:20,975 INFO L134 CoverageAnalysis]: Checked inductivity of 5724 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5724 trivial. 0 not checked. [2024-11-12 04:04:20,975 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 04:04:20,975 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1656304955] [2024-11-12 04:04:20,976 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1656304955] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 04:04:20,976 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 04:04:20,976 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-12 04:04:20,976 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [417713615] [2024-11-12 04:04:20,977 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 04:04:20,979 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-12 04:04:20,979 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 04:04:20,980 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 04:04:20,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 04:04:20,981 INFO L87 Difference]: Start difference. First operand 126 states and 201 transitions. Second operand has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 1 states have call successors, (54), 1 states have call predecessors, (54), 1 states have return successors, (54), 1 states have call predecessors, (54), 1 states have call successors, (54) [2024-11-12 04:04:21,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 04:04:21,093 INFO L93 Difference]: Finished difference Result 371 states and 595 transitions. [2024-11-12 04:04:21,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 04:04:21,094 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 1 states have call successors, (54), 1 states have call predecessors, (54), 1 states have return successors, (54), 1 states have call predecessors, (54), 1 states have call successors, (54) Word has length 324 [2024-11-12 04:04:21,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 04:04:21,101 INFO L225 Difference]: With dead ends: 371 [2024-11-12 04:04:21,101 INFO L226 Difference]: Without dead ends: 248 [2024-11-12 04:04:21,102 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 110 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 04:04:21,107 INFO L435 NwaCegarLoop]: 385 mSDtfsCounter, 189 mSDsluCounter, 190 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 189 SdHoareTripleChecker+Valid, 575 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-12 04:04:21,107 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [189 Valid, 575 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-12 04:04:21,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 248 states. [2024-11-12 04:04:21,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 248 to 130. [2024-11-12 04:04:21,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 130 states, 74 states have (on average 1.3243243243243243) internal successors, (98), 74 states have internal predecessors, (98), 54 states have call successors, (54), 1 states have call predecessors, (54), 1 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2024-11-12 04:04:21,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 206 transitions. [2024-11-12 04:04:21,140 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 206 transitions. Word has length 324 [2024-11-12 04:04:21,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 04:04:21,146 INFO L471 AbstractCegarLoop]: Abstraction has 130 states and 206 transitions. [2024-11-12 04:04:21,146 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 1 states have call successors, (54), 1 states have call predecessors, (54), 1 states have return successors, (54), 1 states have call predecessors, (54), 1 states have call successors, (54) [2024-11-12 04:04:21,146 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 206 transitions. [2024-11-12 04:04:21,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 325 [2024-11-12 04:04:21,153 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 04:04:21,153 INFO L218 NwaCegarLoop]: trace histogram [54, 54, 54, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 04:04:21,153 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-12 04:04:21,153 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 04:04:21,154 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 04:04:21,154 INFO L85 PathProgramCache]: Analyzing trace with hash 365985769, now seen corresponding path program 1 times [2024-11-12 04:04:21,154 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 04:04:21,154 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2008468109] [2024-11-12 04:04:21,154 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 04:04:21,154 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 04:04:21,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:04:21,792 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-12 04:04:21,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:04:21,796 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-12 04:04:21,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:04:21,799 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-12 04:04:21,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:04:21,803 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-12 04:04:21,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:04:21,808 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-12 04:04:21,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:04:21,811 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-12 04:04:21,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:04:21,817 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-12 04:04:21,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:04:21,824 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-12 04:04:21,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:04:21,827 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-12 04:04:21,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:04:21,834 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-12 04:04:21,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:04:21,838 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-12 04:04:21,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:04:21,842 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-12 04:04:21,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:04:21,845 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-12 04:04:21,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:04:21,850 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-12 04:04:21,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:04:21,856 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-12 04:04:21,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:04:21,862 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-12 04:04:21,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:04:21,865 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-12 04:04:21,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:04:21,870 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-12 04:04:21,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:04:21,876 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-12 04:04:21,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:04:21,880 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-12 04:04:21,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:04:21,886 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-11-12 04:04:21,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:04:21,895 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-12 04:04:21,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:04:21,901 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-11-12 04:04:21,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:04:21,905 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-11-12 04:04:21,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:04:21,909 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-11-12 04:04:21,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:04:21,913 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2024-11-12 04:04:21,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:04:21,918 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2024-11-12 04:04:21,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:04:21,921 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-11-12 04:04:21,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:04:21,925 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2024-11-12 04:04:21,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:04:21,927 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2024-11-12 04:04:21,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:04:21,931 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2024-11-12 04:04:21,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:04:21,933 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2024-11-12 04:04:21,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:04:21,937 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2024-11-12 04:04:21,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:04:21,941 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2024-11-12 04:04:21,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:04:21,944 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2024-11-12 04:04:21,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:04:21,947 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2024-11-12 04:04:21,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:04:21,951 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2024-11-12 04:04:21,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:04:21,955 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2024-11-12 04:04:21,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:04:21,959 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2024-11-12 04:04:21,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:04:21,964 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2024-11-12 04:04:21,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:04:21,968 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2024-11-12 04:04:21,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:04:21,973 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2024-11-12 04:04:21,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:04:21,977 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2024-11-12 04:04:21,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:04:21,985 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2024-11-12 04:04:21,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:04:21,989 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2024-11-12 04:04:21,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:04:21,993 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2024-11-12 04:04:21,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:04:21,996 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 259 [2024-11-12 04:04:21,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:04:22,001 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 265 [2024-11-12 04:04:22,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:04:22,005 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2024-11-12 04:04:22,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:04:22,010 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 276 [2024-11-12 04:04:22,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:04:22,014 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 281 [2024-11-12 04:04:22,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:04:22,019 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2024-11-12 04:04:22,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:04:22,026 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 292 [2024-11-12 04:04:22,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:04:22,031 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 298 [2024-11-12 04:04:22,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:04:22,037 INFO L134 CoverageAnalysis]: Checked inductivity of 5724 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5724 trivial. 0 not checked. [2024-11-12 04:04:22,038 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 04:04:22,038 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2008468109] [2024-11-12 04:04:22,038 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2008468109] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 04:04:22,039 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 04:04:22,039 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-12 04:04:22,039 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1153155020] [2024-11-12 04:04:22,039 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 04:04:22,041 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-12 04:04:22,041 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 04:04:22,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-12 04:04:22,044 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-12 04:04:22,045 INFO L87 Difference]: Start difference. First operand 130 states and 206 transitions. Second operand has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 1 states have call successors, (54), 1 states have call predecessors, (54), 1 states have return successors, (54), 1 states have call predecessors, (54), 1 states have call successors, (54) [2024-11-12 04:04:22,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 04:04:22,311 INFO L93 Difference]: Finished difference Result 385 states and 614 transitions. [2024-11-12 04:04:22,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-12 04:04:22,314 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 1 states have call successors, (54), 1 states have call predecessors, (54), 1 states have return successors, (54), 1 states have call predecessors, (54), 1 states have call successors, (54) Word has length 324 [2024-11-12 04:04:22,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 04:04:22,319 INFO L225 Difference]: With dead ends: 385 [2024-11-12 04:04:22,320 INFO L226 Difference]: Without dead ends: 258 [2024-11-12 04:04:22,321 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 109 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-12 04:04:22,323 INFO L435 NwaCegarLoop]: 200 mSDtfsCounter, 107 mSDsluCounter, 277 mSDsCounter, 0 mSdLazyCounter, 121 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 477 SdHoareTripleChecker+Invalid, 121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-12 04:04:22,324 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [107 Valid, 477 Invalid, 121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 121 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-12 04:04:22,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 258 states. [2024-11-12 04:04:22,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 258 to 255. [2024-11-12 04:04:22,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 255 states, 144 states have (on average 1.3263888888888888) internal successors, (191), 144 states have internal predecessors, (191), 108 states have call successors, (108), 2 states have call predecessors, (108), 2 states have return successors, (108), 108 states have call predecessors, (108), 108 states have call successors, (108) [2024-11-12 04:04:22,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 255 states and 407 transitions. [2024-11-12 04:04:22,369 INFO L78 Accepts]: Start accepts. Automaton has 255 states and 407 transitions. Word has length 324 [2024-11-12 04:04:22,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 04:04:22,370 INFO L471 AbstractCegarLoop]: Abstraction has 255 states and 407 transitions. [2024-11-12 04:04:22,371 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 1 states have call successors, (54), 1 states have call predecessors, (54), 1 states have return successors, (54), 1 states have call predecessors, (54), 1 states have call successors, (54) [2024-11-12 04:04:22,371 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states and 407 transitions. [2024-11-12 04:04:22,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 325 [2024-11-12 04:04:22,373 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 04:04:22,374 INFO L218 NwaCegarLoop]: trace histogram [54, 54, 54, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 04:04:22,374 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-12 04:04:22,374 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 04:04:22,375 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 04:04:22,375 INFO L85 PathProgramCache]: Analyzing trace with hash -913877909, now seen corresponding path program 1 times [2024-11-12 04:04:22,375 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 04:04:22,375 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1637280448] [2024-11-12 04:04:22,375 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 04:04:22,375 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 04:04:22,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat