./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/systemc/mem_slave_tlm.4.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 84cfde4a Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/systemc/mem_slave_tlm.4.cil.c -s /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 69030034dd333d91bcd0f7615fd4a158a32a8c2c03a6334daabdaad4c77a89b5 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-84cfde4 [2024-10-11 03:12:30,349 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-11 03:12:30,421 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-11 03:12:30,427 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-11 03:12:30,429 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-11 03:12:30,459 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-11 03:12:30,459 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-11 03:12:30,460 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-11 03:12:30,461 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-11 03:12:30,462 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-11 03:12:30,463 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-11 03:12:30,463 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-11 03:12:30,464 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-11 03:12:30,464 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-11 03:12:30,465 INFO L153 SettingsManager]: * Use SBE=true [2024-10-11 03:12:30,468 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-11 03:12:30,468 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-11 03:12:30,469 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-11 03:12:30,469 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-11 03:12:30,469 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-11 03:12:30,469 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-11 03:12:30,470 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-11 03:12:30,470 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-11 03:12:30,472 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-11 03:12:30,473 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-11 03:12:30,473 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-11 03:12:30,473 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-11 03:12:30,474 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-11 03:12:30,474 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-11 03:12:30,474 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-11 03:12:30,474 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-11 03:12:30,475 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-11 03:12:30,475 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 03:12:30,475 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-11 03:12:30,476 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-11 03:12:30,476 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-11 03:12:30,477 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-11 03:12:30,477 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-11 03:12:30,478 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-11 03:12:30,478 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-11 03:12:30,478 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-11 03:12:30,479 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-11 03:12:30,479 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 69030034dd333d91bcd0f7615fd4a158a32a8c2c03a6334daabdaad4c77a89b5 [2024-10-11 03:12:30,798 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-11 03:12:30,824 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-11 03:12:30,828 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-11 03:12:30,829 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-11 03:12:30,830 INFO L274 PluginConnector]: CDTParser initialized [2024-10-11 03:12:30,831 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/systemc/mem_slave_tlm.4.cil.c [2024-10-11 03:12:32,374 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-11 03:12:32,619 INFO L384 CDTParser]: Found 1 translation units. [2024-10-11 03:12:32,623 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/systemc/mem_slave_tlm.4.cil.c [2024-10-11 03:12:32,642 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/8c51a9925/179a572fd58b4be2a6dc58e7c07800be/FLAG9da835d64 [2024-10-11 03:12:32,657 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/8c51a9925/179a572fd58b4be2a6dc58e7c07800be [2024-10-11 03:12:32,660 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-11 03:12:32,661 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-11 03:12:32,667 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-11 03:12:32,667 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-11 03:12:32,674 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-11 03:12:32,675 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 03:12:32" (1/1) ... [2024-10-11 03:12:32,678 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@362a6438 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:12:32, skipping insertion in model container [2024-10-11 03:12:32,678 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 03:12:32" (1/1) ... [2024-10-11 03:12:32,730 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-11 03:12:32,911 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/systemc/mem_slave_tlm.4.cil.c[646,659] [2024-10-11 03:12:33,067 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 03:12:33,083 INFO L200 MainTranslator]: Completed pre-run [2024-10-11 03:12:33,094 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/systemc/mem_slave_tlm.4.cil.c[646,659] [2024-10-11 03:12:33,183 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 03:12:33,206 INFO L204 MainTranslator]: Completed translation [2024-10-11 03:12:33,207 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:12:33 WrapperNode [2024-10-11 03:12:33,207 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-11 03:12:33,208 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-11 03:12:33,208 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-11 03:12:33,209 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-11 03:12:33,215 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:12:33" (1/1) ... [2024-10-11 03:12:33,226 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:12:33" (1/1) ... [2024-10-11 03:12:33,268 INFO L138 Inliner]: procedures = 19, calls = 18, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 862 [2024-10-11 03:12:33,268 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-11 03:12:33,269 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-11 03:12:33,269 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-11 03:12:33,269 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-11 03:12:33,281 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:12:33" (1/1) ... [2024-10-11 03:12:33,282 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:12:33" (1/1) ... [2024-10-11 03:12:33,289 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:12:33" (1/1) ... [2024-10-11 03:12:33,309 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-10-11 03:12:33,309 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:12:33" (1/1) ... [2024-10-11 03:12:33,309 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:12:33" (1/1) ... [2024-10-11 03:12:33,320 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:12:33" (1/1) ... [2024-10-11 03:12:33,339 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:12:33" (1/1) ... [2024-10-11 03:12:33,343 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:12:33" (1/1) ... [2024-10-11 03:12:33,351 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:12:33" (1/1) ... [2024-10-11 03:12:33,357 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-11 03:12:33,358 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-11 03:12:33,358 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-11 03:12:33,358 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-11 03:12:33,359 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:12:33" (1/1) ... [2024-10-11 03:12:33,367 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 03:12:33,382 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 03:12:33,403 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-11 03:12:33,407 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-11 03:12:33,465 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-11 03:12:33,466 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-11 03:12:33,467 INFO L130 BoogieDeclarations]: Found specification of procedure error [2024-10-11 03:12:33,467 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2024-10-11 03:12:33,467 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-11 03:12:33,467 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-11 03:12:33,598 INFO L238 CfgBuilder]: Building ICFG [2024-10-11 03:12:33,601 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-11 03:12:34,436 INFO L? ?]: Removed 93 outVars from TransFormulas that were not future-live. [2024-10-11 03:12:34,436 INFO L287 CfgBuilder]: Performing block encoding [2024-10-11 03:12:34,510 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-11 03:12:34,511 INFO L314 CfgBuilder]: Removed 13 assume(true) statements. [2024-10-11 03:12:34,511 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 03:12:34 BoogieIcfgContainer [2024-10-11 03:12:34,511 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-11 03:12:34,513 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-11 03:12:34,514 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-11 03:12:34,518 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-11 03:12:34,518 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 03:12:32" (1/3) ... [2024-10-11 03:12:34,519 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11eb078c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 03:12:34, skipping insertion in model container [2024-10-11 03:12:34,519 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:12:33" (2/3) ... [2024-10-11 03:12:34,519 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11eb078c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 03:12:34, skipping insertion in model container [2024-10-11 03:12:34,519 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 03:12:34" (3/3) ... [2024-10-11 03:12:34,521 INFO L112 eAbstractionObserver]: Analyzing ICFG mem_slave_tlm.4.cil.c [2024-10-11 03:12:34,538 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-11 03:12:34,538 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-11 03:12:34,641 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-11 03:12:34,650 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;@2347e17e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-11 03:12:34,650 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-11 03:12:34,657 INFO L276 IsEmpty]: Start isEmpty. Operand has 253 states, 245 states have (on average 1.9387755102040816) internal successors, (475), 251 states have internal predecessors, (475), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-10-11 03:12:34,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-10-11 03:12:34,673 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:12:34,674 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:12:34,676 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:12:34,681 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:12:34,683 INFO L85 PathProgramCache]: Analyzing trace with hash 1837280988, now seen corresponding path program 1 times [2024-10-11 03:12:34,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:12:34,693 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [493374413] [2024-10-11 03:12:34,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:12:34,693 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:12:34,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:35,118 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:12:35,119 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:12:35,119 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [493374413] [2024-10-11 03:12:35,120 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [493374413] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:12:35,120 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:12:35,120 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 03:12:35,122 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [299064665] [2024-10-11 03:12:35,123 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:12:35,127 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 03:12:35,128 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:12:35,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 03:12:35,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 03:12:35,158 INFO L87 Difference]: Start difference. First operand has 253 states, 245 states have (on average 1.9387755102040816) internal successors, (475), 251 states have internal predecessors, (475), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 2 states have internal predecessors, (25), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:12:35,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:12:35,596 INFO L93 Difference]: Finished difference Result 668 states and 1279 transitions. [2024-10-11 03:12:35,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 03:12:35,599 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 2 states have internal predecessors, (25), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2024-10-11 03:12:35,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:12:35,615 INFO L225 Difference]: With dead ends: 668 [2024-10-11 03:12:35,616 INFO L226 Difference]: Without dead ends: 415 [2024-10-11 03:12:35,620 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 [2024-10-11 03:12:35,624 INFO L432 NwaCegarLoop]: 431 mSDtfsCounter, 251 mSDsluCounter, 279 mSDsCounter, 0 mSdLazyCounter, 223 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 251 SdHoareTripleChecker+Valid, 710 SdHoareTripleChecker+Invalid, 284 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 223 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-11 03:12:35,625 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [251 Valid, 710 Invalid, 284 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 223 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-11 03:12:35,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 415 states. [2024-10-11 03:12:35,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 415 to 408. [2024-10-11 03:12:35,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 408 states, 402 states have (on average 1.644278606965174) internal successors, (661), 406 states have internal predecessors, (661), 5 states have call successors, (5), 1 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:12:35,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 408 states to 408 states and 666 transitions. [2024-10-11 03:12:35,697 INFO L78 Accepts]: Start accepts. Automaton has 408 states and 666 transitions. Word has length 26 [2024-10-11 03:12:35,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:12:35,697 INFO L471 AbstractCegarLoop]: Abstraction has 408 states and 666 transitions. [2024-10-11 03:12:35,698 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 2 states have internal predecessors, (25), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:12:35,698 INFO L276 IsEmpty]: Start isEmpty. Operand 408 states and 666 transitions. [2024-10-11 03:12:35,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2024-10-11 03:12:35,701 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:12:35,702 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] [2024-10-11 03:12:35,702 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-11 03:12:35,702 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:12:35,703 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:12:35,703 INFO L85 PathProgramCache]: Analyzing trace with hash 410826932, now seen corresponding path program 1 times [2024-10-11 03:12:35,703 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:12:35,704 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [159039541] [2024-10-11 03:12:35,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:12:35,704 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:12:35,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:35,784 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:12:35,784 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:12:35,785 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [159039541] [2024-10-11 03:12:35,785 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [159039541] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:12:35,785 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:12:35,785 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 03:12:35,786 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [610682125] [2024-10-11 03:12:35,786 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:12:35,787 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 03:12:35,787 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:12:35,788 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 03:12:35,788 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 03:12:35,789 INFO L87 Difference]: Start difference. First operand 408 states and 666 transitions. Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:12:35,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:12:35,979 INFO L93 Difference]: Finished difference Result 1072 states and 1776 transitions. [2024-10-11 03:12:35,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 03:12:35,980 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 38 [2024-10-11 03:12:35,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:12:35,988 INFO L225 Difference]: With dead ends: 1072 [2024-10-11 03:12:35,988 INFO L226 Difference]: Without dead ends: 677 [2024-10-11 03:12:35,993 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 03:12:35,995 INFO L432 NwaCegarLoop]: 592 mSDtfsCounter, 316 mSDsluCounter, 348 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 316 SdHoareTripleChecker+Valid, 940 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-11 03:12:35,995 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [316 Valid, 940 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-11 03:12:35,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 677 states. [2024-10-11 03:12:36,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 677 to 670. [2024-10-11 03:12:36,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 670 states, 664 states have (on average 1.6762048192771084) internal successors, (1113), 668 states have internal predecessors, (1113), 5 states have call successors, (5), 1 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:12:36,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 670 states to 670 states and 1118 transitions. [2024-10-11 03:12:36,059 INFO L78 Accepts]: Start accepts. Automaton has 670 states and 1118 transitions. Word has length 38 [2024-10-11 03:12:36,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:12:36,060 INFO L471 AbstractCegarLoop]: Abstraction has 670 states and 1118 transitions. [2024-10-11 03:12:36,060 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:12:36,060 INFO L276 IsEmpty]: Start isEmpty. Operand 670 states and 1118 transitions. [2024-10-11 03:12:36,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2024-10-11 03:12:36,063 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:12:36,063 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] [2024-10-11 03:12:36,063 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-11 03:12:36,064 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:12:36,064 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:12:36,065 INFO L85 PathProgramCache]: Analyzing trace with hash 73427941, now seen corresponding path program 1 times [2024-10-11 03:12:36,065 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:12:36,065 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1211249511] [2024-10-11 03:12:36,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:12:36,065 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:12:36,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:36,155 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:12:36,155 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:12:36,155 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1211249511] [2024-10-11 03:12:36,156 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1211249511] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:12:36,156 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:12:36,156 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 03:12:36,156 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [162100943] [2024-10-11 03:12:36,156 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:12:36,157 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 03:12:36,157 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:12:36,157 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 03:12:36,157 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 03:12:36,158 INFO L87 Difference]: Start difference. First operand 670 states and 1118 transitions. Second operand has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 2 states have internal predecessors, (38), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:12:36,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:12:36,256 INFO L93 Difference]: Finished difference Result 1676 states and 2799 transitions. [2024-10-11 03:12:36,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 03:12:36,257 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 2 states have internal predecessors, (38), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2024-10-11 03:12:36,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:12:36,263 INFO L225 Difference]: With dead ends: 1676 [2024-10-11 03:12:36,264 INFO L226 Difference]: Without dead ends: 1030 [2024-10-11 03:12:36,269 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 [2024-10-11 03:12:36,271 INFO L432 NwaCegarLoop]: 410 mSDtfsCounter, 340 mSDsluCounter, 332 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 340 SdHoareTripleChecker+Valid, 742 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 03:12:36,274 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [340 Valid, 742 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 03:12:36,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1030 states. [2024-10-11 03:12:36,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1030 to 1019. [2024-10-11 03:12:36,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1019 states, 1013 states have (on average 1.6692991115498519) internal successors, (1691), 1017 states have internal predecessors, (1691), 5 states have call successors, (5), 1 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:12:36,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1019 states to 1019 states and 1696 transitions. [2024-10-11 03:12:36,319 INFO L78 Accepts]: Start accepts. Automaton has 1019 states and 1696 transitions. Word has length 39 [2024-10-11 03:12:36,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:12:36,320 INFO L471 AbstractCegarLoop]: Abstraction has 1019 states and 1696 transitions. [2024-10-11 03:12:36,321 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 2 states have internal predecessors, (38), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:12:36,321 INFO L276 IsEmpty]: Start isEmpty. Operand 1019 states and 1696 transitions. [2024-10-11 03:12:36,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2024-10-11 03:12:36,323 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:12:36,323 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-11 03:12:36,324 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-11 03:12:36,325 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:12:36,325 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:12:36,328 INFO L85 PathProgramCache]: Analyzing trace with hash 1803426404, now seen corresponding path program 1 times [2024-10-11 03:12:36,329 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:12:36,329 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1853759452] [2024-10-11 03:12:36,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:12:36,329 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:12:36,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:36,500 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:12:36,501 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:12:36,501 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1853759452] [2024-10-11 03:12:36,501 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1853759452] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:12:36,501 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:12:36,501 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 03:12:36,502 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1500612470] [2024-10-11 03:12:36,502 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:12:36,502 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 03:12:36,502 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:12:36,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 03:12:36,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 03:12:36,504 INFO L87 Difference]: Start difference. First operand 1019 states and 1696 transitions. Second operand has 4 states, 4 states have (on average 10.5) internal successors, (42), 3 states have internal predecessors, (42), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:12:37,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:12:37,143 INFO L93 Difference]: Finished difference Result 3614 states and 6036 transitions. [2024-10-11 03:12:37,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-11 03:12:37,144 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 3 states have internal predecessors, (42), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 43 [2024-10-11 03:12:37,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:12:37,160 INFO L225 Difference]: With dead ends: 3614 [2024-10-11 03:12:37,160 INFO L226 Difference]: Without dead ends: 2619 [2024-10-11 03:12:37,165 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 [2024-10-11 03:12:37,169 INFO L432 NwaCegarLoop]: 612 mSDtfsCounter, 1121 mSDsluCounter, 879 mSDsCounter, 0 mSdLazyCounter, 459 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1121 SdHoareTripleChecker+Valid, 1491 SdHoareTripleChecker+Invalid, 501 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 459 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-11 03:12:37,169 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1121 Valid, 1491 Invalid, 501 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 459 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-11 03:12:37,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2619 states. [2024-10-11 03:12:37,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2619 to 2125. [2024-10-11 03:12:37,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2125 states, 2119 states have (on average 1.6682397357243983) internal successors, (3535), 2123 states have internal predecessors, (3535), 5 states have call successors, (5), 1 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:12:37,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2125 states to 2125 states and 3540 transitions. [2024-10-11 03:12:37,260 INFO L78 Accepts]: Start accepts. Automaton has 2125 states and 3540 transitions. Word has length 43 [2024-10-11 03:12:37,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:12:37,261 INFO L471 AbstractCegarLoop]: Abstraction has 2125 states and 3540 transitions. [2024-10-11 03:12:37,261 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 3 states have internal predecessors, (42), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:12:37,262 INFO L276 IsEmpty]: Start isEmpty. Operand 2125 states and 3540 transitions. [2024-10-11 03:12:37,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2024-10-11 03:12:37,264 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:12:37,265 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:12:37,265 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-11 03:12:37,265 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:12:37,266 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:12:37,266 INFO L85 PathProgramCache]: Analyzing trace with hash 991278223, now seen corresponding path program 1 times [2024-10-11 03:12:37,266 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:12:37,266 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [675517068] [2024-10-11 03:12:37,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:12:37,266 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:12:37,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:37,333 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:12:37,333 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:12:37,333 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [675517068] [2024-10-11 03:12:37,333 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [675517068] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:12:37,333 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:12:37,333 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 03:12:37,333 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [496312091] [2024-10-11 03:12:37,334 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:12:37,334 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 03:12:37,334 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:12:37,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 03:12:37,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 03:12:37,335 INFO L87 Difference]: Start difference. First operand 2125 states and 3540 transitions. Second operand has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:12:37,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:12:37,551 INFO L93 Difference]: Finished difference Result 5935 states and 9852 transitions. [2024-10-11 03:12:37,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 03:12:37,551 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 50 [2024-10-11 03:12:37,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:12:37,569 INFO L225 Difference]: With dead ends: 5935 [2024-10-11 03:12:37,570 INFO L226 Difference]: Without dead ends: 3828 [2024-10-11 03:12:37,575 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 03:12:37,576 INFO L432 NwaCegarLoop]: 376 mSDtfsCounter, 376 mSDsluCounter, 336 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 376 SdHoareTripleChecker+Valid, 712 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 03:12:37,577 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [376 Valid, 712 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 03:12:37,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3828 states. [2024-10-11 03:12:37,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3828 to 3761. [2024-10-11 03:12:37,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3761 states, 3755 states have (on average 1.6340878828229028) internal successors, (6136), 3759 states have internal predecessors, (6136), 5 states have call successors, (5), 1 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:12:37,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3761 states to 3761 states and 6141 transitions. [2024-10-11 03:12:37,760 INFO L78 Accepts]: Start accepts. Automaton has 3761 states and 6141 transitions. Word has length 50 [2024-10-11 03:12:37,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:12:37,760 INFO L471 AbstractCegarLoop]: Abstraction has 3761 states and 6141 transitions. [2024-10-11 03:12:37,761 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:12:37,761 INFO L276 IsEmpty]: Start isEmpty. Operand 3761 states and 6141 transitions. [2024-10-11 03:12:37,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2024-10-11 03:12:37,762 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:12:37,762 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:12:37,762 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-11 03:12:37,763 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:12:37,763 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:12:37,763 INFO L85 PathProgramCache]: Analyzing trace with hash -1158904936, now seen corresponding path program 1 times [2024-10-11 03:12:37,763 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:12:37,763 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [935772578] [2024-10-11 03:12:37,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:12:37,764 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:12:37,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:37,813 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:12:37,813 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:12:37,814 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [935772578] [2024-10-11 03:12:37,814 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [935772578] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:12:37,814 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:12:37,814 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 03:12:37,814 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [767860751] [2024-10-11 03:12:37,814 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:12:37,815 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 03:12:37,815 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:12:37,816 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 03:12:37,816 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 03:12:37,816 INFO L87 Difference]: Start difference. First operand 3761 states and 6141 transitions. Second operand has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 2 states have internal predecessors, (49), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:12:38,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:12:38,023 INFO L93 Difference]: Finished difference Result 8942 states and 14562 transitions. [2024-10-11 03:12:38,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 03:12:38,024 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 2 states have internal predecessors, (49), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 50 [2024-10-11 03:12:38,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:12:38,048 INFO L225 Difference]: With dead ends: 8942 [2024-10-11 03:12:38,049 INFO L226 Difference]: Without dead ends: 5203 [2024-10-11 03:12:38,057 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 [2024-10-11 03:12:38,059 INFO L432 NwaCegarLoop]: 408 mSDtfsCounter, 355 mSDsluCounter, 241 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 355 SdHoareTripleChecker+Valid, 649 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 03:12:38,061 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [355 Valid, 649 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 03:12:38,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5203 states. [2024-10-11 03:12:38,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5203 to 4927. [2024-10-11 03:12:38,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4927 states, 4921 states have (on average 1.6159317211948792) internal successors, (7952), 4925 states have internal predecessors, (7952), 5 states have call successors, (5), 1 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:12:38,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4927 states to 4927 states and 7957 transitions. [2024-10-11 03:12:38,317 INFO L78 Accepts]: Start accepts. Automaton has 4927 states and 7957 transitions. Word has length 50 [2024-10-11 03:12:38,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:12:38,319 INFO L471 AbstractCegarLoop]: Abstraction has 4927 states and 7957 transitions. [2024-10-11 03:12:38,319 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 2 states have internal predecessors, (49), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:12:38,320 INFO L276 IsEmpty]: Start isEmpty. Operand 4927 states and 7957 transitions. [2024-10-11 03:12:38,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-10-11 03:12:38,322 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:12:38,322 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:12:38,323 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-11 03:12:38,323 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:12:38,323 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:12:38,323 INFO L85 PathProgramCache]: Analyzing trace with hash 1084631645, now seen corresponding path program 1 times [2024-10-11 03:12:38,323 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:12:38,323 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1907037819] [2024-10-11 03:12:38,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:12:38,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:12:38,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:38,393 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:12:38,394 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:12:38,394 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1907037819] [2024-10-11 03:12:38,394 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1907037819] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:12:38,394 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:12:38,394 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 03:12:38,395 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1892434935] [2024-10-11 03:12:38,395 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:12:38,395 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 03:12:38,395 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:12:38,396 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 03:12:38,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 03:12:38,396 INFO L87 Difference]: Start difference. First operand 4927 states and 7957 transitions. Second operand has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:12:38,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:12:38,843 INFO L93 Difference]: Finished difference Result 11919 states and 19337 transitions. [2024-10-11 03:12:38,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 03:12:38,844 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 57 [2024-10-11 03:12:38,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:12:38,874 INFO L225 Difference]: With dead ends: 11919 [2024-10-11 03:12:38,875 INFO L226 Difference]: Without dead ends: 7014 [2024-10-11 03:12:38,885 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 03:12:38,886 INFO L432 NwaCegarLoop]: 530 mSDtfsCounter, 241 mSDsluCounter, 269 mSDsCounter, 0 mSdLazyCounter, 224 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 241 SdHoareTripleChecker+Valid, 799 SdHoareTripleChecker+Invalid, 291 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 224 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-11 03:12:38,887 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [241 Valid, 799 Invalid, 291 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 224 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-11 03:12:38,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7014 states. [2024-10-11 03:12:39,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7014 to 5699. [2024-10-11 03:12:39,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5699 states, 5693 states have (on average 1.562445108027402) internal successors, (8895), 5697 states have internal predecessors, (8895), 5 states have call successors, (5), 1 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:12:39,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5699 states to 5699 states and 8900 transitions. [2024-10-11 03:12:39,177 INFO L78 Accepts]: Start accepts. Automaton has 5699 states and 8900 transitions. Word has length 57 [2024-10-11 03:12:39,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:12:39,178 INFO L471 AbstractCegarLoop]: Abstraction has 5699 states and 8900 transitions. [2024-10-11 03:12:39,178 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:12:39,178 INFO L276 IsEmpty]: Start isEmpty. Operand 5699 states and 8900 transitions. [2024-10-11 03:12:39,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-10-11 03:12:39,182 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:12:39,182 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:12:39,182 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-11 03:12:39,182 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:12:39,183 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:12:39,183 INFO L85 PathProgramCache]: Analyzing trace with hash 1961685769, now seen corresponding path program 1 times [2024-10-11 03:12:39,183 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:12:39,183 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1708369401] [2024-10-11 03:12:39,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:12:39,184 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:12:39,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:39,258 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:12:39,259 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:12:39,259 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1708369401] [2024-10-11 03:12:39,259 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1708369401] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:12:39,259 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:12:39,259 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 03:12:39,259 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [520148076] [2024-10-11 03:12:39,259 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:12:39,260 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 03:12:39,260 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:12:39,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 03:12:39,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 03:12:39,261 INFO L87 Difference]: Start difference. First operand 5699 states and 8900 transitions. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 2 states have internal predecessors, (58), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:12:39,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:12:39,518 INFO L93 Difference]: Finished difference Result 11242 states and 17578 transitions. [2024-10-11 03:12:39,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 03:12:39,519 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 2 states have internal predecessors, (58), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 59 [2024-10-11 03:12:39,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:12:39,552 INFO L225 Difference]: With dead ends: 11242 [2024-10-11 03:12:39,552 INFO L226 Difference]: Without dead ends: 5565 [2024-10-11 03:12:39,563 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 [2024-10-11 03:12:39,565 INFO L432 NwaCegarLoop]: 377 mSDtfsCounter, 332 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 332 SdHoareTripleChecker+Valid, 405 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 03:12:39,566 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [332 Valid, 405 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 03:12:39,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5565 states. [2024-10-11 03:12:39,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5565 to 5565. [2024-10-11 03:12:39,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5565 states, 5559 states have (on average 1.543083288361216) internal successors, (8578), 5563 states have internal predecessors, (8578), 5 states have call successors, (5), 1 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:12:39,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5565 states to 5565 states and 8583 transitions. [2024-10-11 03:12:39,831 INFO L78 Accepts]: Start accepts. Automaton has 5565 states and 8583 transitions. Word has length 59 [2024-10-11 03:12:39,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:12:39,831 INFO L471 AbstractCegarLoop]: Abstraction has 5565 states and 8583 transitions. [2024-10-11 03:12:39,832 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 2 states have internal predecessors, (58), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:12:39,832 INFO L276 IsEmpty]: Start isEmpty. Operand 5565 states and 8583 transitions. [2024-10-11 03:12:39,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-10-11 03:12:39,835 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:12:39,835 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:12:39,836 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-11 03:12:39,836 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:12:39,836 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:12:39,837 INFO L85 PathProgramCache]: Analyzing trace with hash 514755726, now seen corresponding path program 1 times [2024-10-11 03:12:39,837 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:12:39,837 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1232177540] [2024-10-11 03:12:39,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:12:39,837 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:12:39,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:39,917 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:12:39,920 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:12:39,920 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1232177540] [2024-10-11 03:12:39,920 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1232177540] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:12:39,920 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:12:39,921 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 03:12:39,921 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [426718629] [2024-10-11 03:12:39,921 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:12:39,922 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 03:12:39,922 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:12:39,922 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 03:12:39,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 03:12:39,923 INFO L87 Difference]: Start difference. First operand 5565 states and 8583 transitions. Second operand has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:12:40,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:12:40,152 INFO L93 Difference]: Finished difference Result 10697 states and 16608 transitions. [2024-10-11 03:12:40,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 03:12:40,153 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 60 [2024-10-11 03:12:40,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:12:40,168 INFO L225 Difference]: With dead ends: 10697 [2024-10-11 03:12:40,168 INFO L226 Difference]: Without dead ends: 5154 [2024-10-11 03:12:40,180 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 03:12:40,182 INFO L432 NwaCegarLoop]: 454 mSDtfsCounter, 145 mSDsluCounter, 385 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 839 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 03:12:40,183 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [145 Valid, 839 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 03:12:40,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5154 states. [2024-10-11 03:12:40,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5154 to 4497. [2024-10-11 03:12:40,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4497 states, 4491 states have (on average 1.5655755956357158) internal successors, (7031), 4495 states have internal predecessors, (7031), 5 states have call successors, (5), 1 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:12:40,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4497 states to 4497 states and 7036 transitions. [2024-10-11 03:12:40,394 INFO L78 Accepts]: Start accepts. Automaton has 4497 states and 7036 transitions. Word has length 60 [2024-10-11 03:12:40,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:12:40,394 INFO L471 AbstractCegarLoop]: Abstraction has 4497 states and 7036 transitions. [2024-10-11 03:12:40,395 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:12:40,395 INFO L276 IsEmpty]: Start isEmpty. Operand 4497 states and 7036 transitions. [2024-10-11 03:12:40,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-10-11 03:12:40,396 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:12:40,397 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:12:40,397 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-11 03:12:40,397 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:12:40,397 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:12:40,398 INFO L85 PathProgramCache]: Analyzing trace with hash 951806806, now seen corresponding path program 1 times [2024-10-11 03:12:40,398 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:12:40,398 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1642979398] [2024-10-11 03:12:40,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:12:40,398 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:12:40,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:40,503 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:12:40,504 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:12:40,504 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1642979398] [2024-10-11 03:12:40,504 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1642979398] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:12:40,504 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:12:40,505 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-11 03:12:40,505 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1472847979] [2024-10-11 03:12:40,505 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:12:40,505 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 03:12:40,505 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:12:40,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 03:12:40,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-11 03:12:40,506 INFO L87 Difference]: Start difference. First operand 4497 states and 7036 transitions. Second operand has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:12:41,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:12:41,169 INFO L93 Difference]: Finished difference Result 13028 states and 20381 transitions. [2024-10-11 03:12:41,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-11 03:12:41,169 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 62 [2024-10-11 03:12:41,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:12:41,191 INFO L225 Difference]: With dead ends: 13028 [2024-10-11 03:12:41,192 INFO L226 Difference]: Without dead ends: 8733 [2024-10-11 03:12:41,201 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-10-11 03:12:41,202 INFO L432 NwaCegarLoop]: 505 mSDtfsCounter, 906 mSDsluCounter, 1701 mSDsCounter, 0 mSdLazyCounter, 477 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 906 SdHoareTripleChecker+Valid, 2206 SdHoareTripleChecker+Invalid, 483 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 477 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-11 03:12:41,203 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [906 Valid, 2206 Invalid, 483 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 477 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-11 03:12:41,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8733 states. [2024-10-11 03:12:41,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8733 to 6041. [2024-10-11 03:12:41,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6041 states, 6035 states have (on average 1.5647058823529412) internal successors, (9443), 6039 states have internal predecessors, (9443), 5 states have call successors, (5), 1 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:12:41,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6041 states to 6041 states and 9448 transitions. [2024-10-11 03:12:41,498 INFO L78 Accepts]: Start accepts. Automaton has 6041 states and 9448 transitions. Word has length 62 [2024-10-11 03:12:41,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:12:41,500 INFO L471 AbstractCegarLoop]: Abstraction has 6041 states and 9448 transitions. [2024-10-11 03:12:41,500 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:12:41,500 INFO L276 IsEmpty]: Start isEmpty. Operand 6041 states and 9448 transitions. [2024-10-11 03:12:41,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-10-11 03:12:41,502 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:12:41,502 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:12:41,502 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-11 03:12:41,502 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:12:41,503 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:12:41,503 INFO L85 PathProgramCache]: Analyzing trace with hash 704541015, now seen corresponding path program 1 times [2024-10-11 03:12:41,505 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:12:41,507 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [6903071] [2024-10-11 03:12:41,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:12:41,507 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:12:41,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:41,613 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:12:41,614 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:12:41,614 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [6903071] [2024-10-11 03:12:41,614 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [6903071] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:12:41,614 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:12:41,614 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-11 03:12:41,615 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [785431368] [2024-10-11 03:12:41,615 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:12:41,615 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 03:12:41,615 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:12:41,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 03:12:41,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-11 03:12:41,616 INFO L87 Difference]: Start difference. First operand 6041 states and 9448 transitions. Second operand has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 7 states have internal predecessors, (62), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:12:42,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:12:42,116 INFO L93 Difference]: Finished difference Result 14464 states and 22469 transitions. [2024-10-11 03:12:42,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-11 03:12:42,117 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 7 states have internal predecessors, (62), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 63 [2024-10-11 03:12:42,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:12:42,140 INFO L225 Difference]: With dead ends: 14464 [2024-10-11 03:12:42,141 INFO L226 Difference]: Without dead ends: 8625 [2024-10-11 03:12:42,151 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2024-10-11 03:12:42,152 INFO L432 NwaCegarLoop]: 504 mSDtfsCounter, 795 mSDsluCounter, 2243 mSDsCounter, 0 mSdLazyCounter, 202 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 795 SdHoareTripleChecker+Valid, 2747 SdHoareTripleChecker+Invalid, 207 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 202 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 03:12:42,152 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [795 Valid, 2747 Invalid, 207 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 202 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 03:12:42,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8625 states. [2024-10-11 03:12:42,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8625 to 6381. [2024-10-11 03:12:42,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6381 states, 6375 states have (on average 1.5534117647058823) internal successors, (9903), 6379 states have internal predecessors, (9903), 5 states have call successors, (5), 1 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:12:42,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6381 states to 6381 states and 9908 transitions. [2024-10-11 03:12:42,411 INFO L78 Accepts]: Start accepts. Automaton has 6381 states and 9908 transitions. Word has length 63 [2024-10-11 03:12:42,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:12:42,412 INFO L471 AbstractCegarLoop]: Abstraction has 6381 states and 9908 transitions. [2024-10-11 03:12:42,412 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 7 states have internal predecessors, (62), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:12:42,412 INFO L276 IsEmpty]: Start isEmpty. Operand 6381 states and 9908 transitions. [2024-10-11 03:12:42,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-10-11 03:12:42,416 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:12:42,417 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-11 03:12:42,417 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-11 03:12:42,417 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:12:42,417 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:12:42,417 INFO L85 PathProgramCache]: Analyzing trace with hash 1900245951, now seen corresponding path program 1 times [2024-10-11 03:12:42,418 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:12:42,418 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [198311333] [2024-10-11 03:12:42,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:12:42,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:12:42,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:42,450 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:12:42,451 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:12:42,451 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [198311333] [2024-10-11 03:12:42,451 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [198311333] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:12:42,451 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:12:42,451 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 03:12:42,451 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1710450837] [2024-10-11 03:12:42,451 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:12:42,452 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 03:12:42,452 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:12:42,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 03:12:42,453 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 03:12:42,453 INFO L87 Difference]: Start difference. First operand 6381 states and 9908 transitions. Second operand has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 2 states have internal predecessors, (73), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:12:42,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:12:42,787 INFO L93 Difference]: Finished difference Result 13553 states and 21006 transitions. [2024-10-11 03:12:42,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 03:12:42,788 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 2 states have internal predecessors, (73), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 74 [2024-10-11 03:12:42,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:12:42,809 INFO L225 Difference]: With dead ends: 13553 [2024-10-11 03:12:42,810 INFO L226 Difference]: Without dead ends: 7192 [2024-10-11 03:12:42,821 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 [2024-10-11 03:12:42,822 INFO L432 NwaCegarLoop]: 410 mSDtfsCounter, 134 mSDsluCounter, 338 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 748 SdHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 03:12:42,822 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [134 Valid, 748 Invalid, 97 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 03:12:42,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7192 states. [2024-10-11 03:12:43,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7192 to 7106. [2024-10-11 03:12:43,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7106 states, 7100 states have (on average 1.548169014084507) internal successors, (10992), 7104 states have internal predecessors, (10992), 5 states have call successors, (5), 1 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:12:43,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7106 states to 7106 states and 10997 transitions. [2024-10-11 03:12:43,140 INFO L78 Accepts]: Start accepts. Automaton has 7106 states and 10997 transitions. Word has length 74 [2024-10-11 03:12:43,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:12:43,141 INFO L471 AbstractCegarLoop]: Abstraction has 7106 states and 10997 transitions. [2024-10-11 03:12:43,141 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 2 states have internal predecessors, (73), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:12:43,141 INFO L276 IsEmpty]: Start isEmpty. Operand 7106 states and 10997 transitions. [2024-10-11 03:12:43,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-10-11 03:12:43,144 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:12:43,144 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 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] [2024-10-11 03:12:43,144 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-11 03:12:43,144 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:12:43,145 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:12:43,145 INFO L85 PathProgramCache]: Analyzing trace with hash 1597636600, now seen corresponding path program 1 times [2024-10-11 03:12:43,145 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:12:43,145 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [638426179] [2024-10-11 03:12:43,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:12:43,146 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:12:43,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:43,204 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:12:43,205 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:12:43,205 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [638426179] [2024-10-11 03:12:43,205 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [638426179] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:12:43,205 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:12:43,205 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 03:12:43,205 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1572923613] [2024-10-11 03:12:43,205 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:12:43,206 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 03:12:43,206 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:12:43,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 03:12:43,207 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 03:12:43,207 INFO L87 Difference]: Start difference. First operand 7106 states and 10997 transitions. Second operand has 4 states, 4 states have (on average 21.0) internal successors, (84), 4 states have internal predecessors, (84), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:12:43,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:12:43,878 INFO L93 Difference]: Finished difference Result 18455 states and 28290 transitions. [2024-10-11 03:12:43,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-11 03:12:43,878 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.0) internal successors, (84), 4 states have internal predecessors, (84), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 85 [2024-10-11 03:12:43,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:12:43,909 INFO L225 Difference]: With dead ends: 18455 [2024-10-11 03:12:43,909 INFO L226 Difference]: Without dead ends: 11236 [2024-10-11 03:12:43,919 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-11 03:12:43,921 INFO L432 NwaCegarLoop]: 511 mSDtfsCounter, 612 mSDsluCounter, 632 mSDsCounter, 0 mSdLazyCounter, 352 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 612 SdHoareTripleChecker+Valid, 1143 SdHoareTripleChecker+Invalid, 367 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 352 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-11 03:12:43,922 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [612 Valid, 1143 Invalid, 367 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 352 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-11 03:12:43,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11236 states. [2024-10-11 03:12:44,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11236 to 9823. [2024-10-11 03:12:44,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9823 states, 9817 states have (on average 1.5085056534582866) internal successors, (14809), 9821 states have internal predecessors, (14809), 5 states have call successors, (5), 1 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:12:44,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9823 states to 9823 states and 14814 transitions. [2024-10-11 03:12:44,252 INFO L78 Accepts]: Start accepts. Automaton has 9823 states and 14814 transitions. Word has length 85 [2024-10-11 03:12:44,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:12:44,252 INFO L471 AbstractCegarLoop]: Abstraction has 9823 states and 14814 transitions. [2024-10-11 03:12:44,252 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.0) internal successors, (84), 4 states have internal predecessors, (84), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:12:44,253 INFO L276 IsEmpty]: Start isEmpty. Operand 9823 states and 14814 transitions. [2024-10-11 03:12:44,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-10-11 03:12:44,255 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:12:44,255 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 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] [2024-10-11 03:12:44,255 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-11 03:12:44,256 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:12:44,256 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:12:44,256 INFO L85 PathProgramCache]: Analyzing trace with hash -466646901, now seen corresponding path program 1 times [2024-10-11 03:12:44,257 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:12:44,257 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [90964392] [2024-10-11 03:12:44,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:12:44,257 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:12:44,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:44,322 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:12:44,323 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:12:44,323 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [90964392] [2024-10-11 03:12:44,323 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [90964392] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:12:44,323 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:12:44,323 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 03:12:44,323 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1196234710] [2024-10-11 03:12:44,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:12:44,324 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 03:12:44,324 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:12:44,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 03:12:44,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 03:12:44,325 INFO L87 Difference]: Start difference. First operand 9823 states and 14814 transitions. Second operand has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:12:44,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:12:44,556 INFO L93 Difference]: Finished difference Result 13964 states and 21098 transitions. [2024-10-11 03:12:44,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 03:12:44,557 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2024-10-11 03:12:44,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:12:44,569 INFO L225 Difference]: With dead ends: 13964 [2024-10-11 03:12:44,570 INFO L226 Difference]: Without dead ends: 4151 [2024-10-11 03:12:44,583 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 03:12:44,584 INFO L432 NwaCegarLoop]: 399 mSDtfsCounter, 327 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 327 SdHoareTripleChecker+Valid, 469 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 03:12:44,584 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [327 Valid, 469 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 03:12:44,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4151 states. [2024-10-11 03:12:44,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4151 to 4093. [2024-10-11 03:12:44,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4093 states, 4087 states have (on average 1.4059212136041106) internal successors, (5746), 4091 states have internal predecessors, (5746), 5 states have call successors, (5), 1 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:12:44,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4093 states to 4093 states and 5751 transitions. [2024-10-11 03:12:44,762 INFO L78 Accepts]: Start accepts. Automaton has 4093 states and 5751 transitions. Word has length 91 [2024-10-11 03:12:44,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:12:44,762 INFO L471 AbstractCegarLoop]: Abstraction has 4093 states and 5751 transitions. [2024-10-11 03:12:44,763 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:12:44,763 INFO L276 IsEmpty]: Start isEmpty. Operand 4093 states and 5751 transitions. [2024-10-11 03:12:44,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-10-11 03:12:44,764 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:12:44,764 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-11 03:12:44,764 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-11 03:12:44,765 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:12:44,765 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:12:44,765 INFO L85 PathProgramCache]: Analyzing trace with hash 1575348907, now seen corresponding path program 1 times [2024-10-11 03:12:44,765 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:12:44,765 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1746614710] [2024-10-11 03:12:44,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:12:44,766 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:12:44,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:44,844 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:12:44,844 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:12:44,845 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1746614710] [2024-10-11 03:12:44,845 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1746614710] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:12:44,845 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:12:44,845 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 03:12:44,845 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1156617359] [2024-10-11 03:12:44,845 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:12:44,846 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 03:12:44,846 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:12:44,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 03:12:44,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-11 03:12:44,847 INFO L87 Difference]: Start difference. First operand 4093 states and 5751 transitions. Second operand has 5 states, 5 states have (on average 18.8) internal successors, (94), 5 states have internal predecessors, (94), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:12:45,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:12:45,146 INFO L93 Difference]: Finished difference Result 9607 states and 13487 transitions. [2024-10-11 03:12:45,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-11 03:12:45,147 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.8) internal successors, (94), 5 states have internal predecessors, (94), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 95 [2024-10-11 03:12:45,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:12:45,161 INFO L225 Difference]: With dead ends: 9607 [2024-10-11 03:12:45,162 INFO L226 Difference]: Without dead ends: 5678 [2024-10-11 03:12:45,172 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-10-11 03:12:45,172 INFO L432 NwaCegarLoop]: 645 mSDtfsCounter, 523 mSDsluCounter, 1513 mSDsCounter, 0 mSdLazyCounter, 167 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 523 SdHoareTripleChecker+Valid, 2158 SdHoareTripleChecker+Invalid, 169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 167 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 03:12:45,172 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [523 Valid, 2158 Invalid, 169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 167 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 03:12:45,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5678 states. [2024-10-11 03:12:45,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5678 to 4095. [2024-10-11 03:12:45,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4095 states, 4089 states have (on average 1.4027879677182686) internal successors, (5736), 4093 states have internal predecessors, (5736), 5 states have call successors, (5), 1 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:12:45,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4095 states to 4095 states and 5741 transitions. [2024-10-11 03:12:45,333 INFO L78 Accepts]: Start accepts. Automaton has 4095 states and 5741 transitions. Word has length 95 [2024-10-11 03:12:45,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:12:45,334 INFO L471 AbstractCegarLoop]: Abstraction has 4095 states and 5741 transitions. [2024-10-11 03:12:45,334 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.8) internal successors, (94), 5 states have internal predecessors, (94), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:12:45,334 INFO L276 IsEmpty]: Start isEmpty. Operand 4095 states and 5741 transitions. [2024-10-11 03:12:45,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-10-11 03:12:45,337 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:12:45,337 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-11 03:12:45,337 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-11 03:12:45,338 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:12:45,338 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:12:45,338 INFO L85 PathProgramCache]: Analyzing trace with hash -1797676602, now seen corresponding path program 1 times [2024-10-11 03:12:45,338 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:12:45,339 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [793441448] [2024-10-11 03:12:45,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:12:45,339 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:12:45,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:45,431 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:12:45,431 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:12:45,432 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [793441448] [2024-10-11 03:12:45,434 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [793441448] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 03:12:45,434 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1013793907] [2024-10-11 03:12:45,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:12:45,434 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 03:12:45,435 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 03:12:45,436 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 03:12:45,438 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-11 03:12:45,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:45,547 INFO L255 TraceCheckSpWp]: Trace formula consists of 361 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-11 03:12:45,554 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 03:12:45,692 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-10-11 03:12:45,692 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 03:12:45,692 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1013793907] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:12:45,692 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 03:12:45,692 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2024-10-11 03:12:45,693 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1515253330] [2024-10-11 03:12:45,693 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:12:45,693 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 03:12:45,693 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:12:45,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 03:12:45,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-11 03:12:45,694 INFO L87 Difference]: Start difference. First operand 4095 states and 5741 transitions. Second operand has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:12:45,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:12:45,874 INFO L93 Difference]: Finished difference Result 5246 states and 7346 transitions. [2024-10-11 03:12:45,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 03:12:45,875 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 97 [2024-10-11 03:12:45,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:12:45,888 INFO L225 Difference]: With dead ends: 5246 [2024-10-11 03:12:45,888 INFO L226 Difference]: Without dead ends: 5242 [2024-10-11 03:12:45,892 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-11 03:12:45,893 INFO L432 NwaCegarLoop]: 393 mSDtfsCounter, 223 mSDsluCounter, 342 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 223 SdHoareTripleChecker+Valid, 735 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 03:12:45,893 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [223 Valid, 735 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 03:12:45,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5242 states. [2024-10-11 03:12:46,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5242 to 5104. [2024-10-11 03:12:46,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5104 states, 5098 states have (on average 1.4074146724205572) internal successors, (7175), 5102 states have internal predecessors, (7175), 5 states have call successors, (5), 1 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:12:46,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5104 states to 5104 states and 7180 transitions. [2024-10-11 03:12:46,066 INFO L78 Accepts]: Start accepts. Automaton has 5104 states and 7180 transitions. Word has length 97 [2024-10-11 03:12:46,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:12:46,067 INFO L471 AbstractCegarLoop]: Abstraction has 5104 states and 7180 transitions. [2024-10-11 03:12:46,067 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:12:46,067 INFO L276 IsEmpty]: Start isEmpty. Operand 5104 states and 7180 transitions. [2024-10-11 03:12:46,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-10-11 03:12:46,070 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:12:46,071 INFO L215 NwaCegarLoop]: trace histogram [3, 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] [2024-10-11 03:12:46,090 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-10-11 03:12:46,272 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-10-11 03:12:46,272 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:12:46,273 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:12:46,273 INFO L85 PathProgramCache]: Analyzing trace with hash 673719498, now seen corresponding path program 1 times [2024-10-11 03:12:46,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:12:46,273 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1174599217] [2024-10-11 03:12:46,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:12:46,273 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:12:46,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:46,390 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 15 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:12:46,391 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:12:46,391 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1174599217] [2024-10-11 03:12:46,391 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1174599217] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 03:12:46,391 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1838303532] [2024-10-11 03:12:46,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:12:46,392 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 03:12:46,392 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 03:12:46,394 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 03:12:46,395 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-11 03:12:46,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:46,513 INFO L255 TraceCheckSpWp]: Trace formula consists of 509 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-11 03:12:46,518 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 03:12:46,604 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-10-11 03:12:46,604 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 03:12:46,604 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1838303532] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:12:46,604 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 03:12:46,604 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2024-10-11 03:12:46,604 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [501209346] [2024-10-11 03:12:46,604 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:12:46,605 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 03:12:46,605 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:12:46,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 03:12:46,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-11 03:12:46,608 INFO L87 Difference]: Start difference. First operand 5104 states and 7180 transitions. Second operand has 3 states, 3 states have (on average 48.666666666666664) internal successors, (146), 3 states have internal predecessors, (146), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:12:46,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:12:46,820 INFO L93 Difference]: Finished difference Result 9076 states and 12838 transitions. [2024-10-11 03:12:46,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 03:12:46,821 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 48.666666666666664) internal successors, (146), 3 states have internal predecessors, (146), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 150 [2024-10-11 03:12:46,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:12:46,835 INFO L225 Difference]: With dead ends: 9076 [2024-10-11 03:12:46,836 INFO L226 Difference]: Without dead ends: 3983 [2024-10-11 03:12:46,841 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-11 03:12:46,841 INFO L432 NwaCegarLoop]: 339 mSDtfsCounter, 253 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 253 SdHoareTripleChecker+Valid, 388 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 03:12:46,842 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [253 Valid, 388 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 03:12:46,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3983 states. [2024-10-11 03:12:47,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3983 to 3648. [2024-10-11 03:12:47,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3648 states, 3642 states have (on average 1.3871499176276771) internal successors, (5052), 3646 states have internal predecessors, (5052), 5 states have call successors, (5), 1 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:12:47,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3648 states to 3648 states and 5057 transitions. [2024-10-11 03:12:47,049 INFO L78 Accepts]: Start accepts. Automaton has 3648 states and 5057 transitions. Word has length 150 [2024-10-11 03:12:47,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:12:47,050 INFO L471 AbstractCegarLoop]: Abstraction has 3648 states and 5057 transitions. [2024-10-11 03:12:47,050 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 48.666666666666664) internal successors, (146), 3 states have internal predecessors, (146), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:12:47,050 INFO L276 IsEmpty]: Start isEmpty. Operand 3648 states and 5057 transitions. [2024-10-11 03:12:47,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-10-11 03:12:47,053 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:12:47,054 INFO L215 NwaCegarLoop]: trace histogram [3, 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] [2024-10-11 03:12:47,072 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-10-11 03:12:47,254 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-10-11 03:12:47,255 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:12:47,255 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:12:47,256 INFO L85 PathProgramCache]: Analyzing trace with hash -1981582076, now seen corresponding path program 1 times [2024-10-11 03:12:47,256 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:12:47,256 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [100605782] [2024-10-11 03:12:47,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:12:47,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:12:47,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:47,432 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 19 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-10-11 03:12:47,432 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:12:47,432 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [100605782] [2024-10-11 03:12:47,432 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [100605782] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 03:12:47,433 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1650274237] [2024-10-11 03:12:47,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:12:47,433 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 03:12:47,433 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 03:12:47,436 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 03:12:47,438 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-11 03:12:47,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:47,564 INFO L255 TraceCheckSpWp]: Trace formula consists of 503 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-11 03:12:47,572 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 03:12:47,645 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-10-11 03:12:47,645 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 03:12:47,645 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1650274237] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:12:47,646 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 03:12:47,646 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2024-10-11 03:12:47,646 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1524771128] [2024-10-11 03:12:47,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:12:47,647 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 03:12:47,647 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:12:47,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 03:12:47,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-11 03:12:47,648 INFO L87 Difference]: Start difference. First operand 3648 states and 5057 transitions. Second operand has 3 states, 3 states have (on average 48.333333333333336) internal successors, (145), 3 states have internal predecessors, (145), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:12:47,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:12:47,874 INFO L93 Difference]: Finished difference Result 7133 states and 9936 transitions. [2024-10-11 03:12:47,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 03:12:47,875 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 48.333333333333336) internal successors, (145), 3 states have internal predecessors, (145), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 153 [2024-10-11 03:12:47,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:12:47,887 INFO L225 Difference]: With dead ends: 7133 [2024-10-11 03:12:47,887 INFO L226 Difference]: Without dead ends: 3648 [2024-10-11 03:12:47,893 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 158 GetRequests, 154 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-11 03:12:47,894 INFO L432 NwaCegarLoop]: 318 mSDtfsCounter, 263 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 263 SdHoareTripleChecker+Valid, 360 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 03:12:47,894 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [263 Valid, 360 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 03:12:47,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3648 states. [2024-10-11 03:12:48,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3648 to 3648. [2024-10-11 03:12:48,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3648 states, 3642 states have (on average 1.3487095002745744) internal successors, (4912), 3646 states have internal predecessors, (4912), 5 states have call successors, (5), 1 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:12:48,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3648 states to 3648 states and 4917 transitions. [2024-10-11 03:12:48,033 INFO L78 Accepts]: Start accepts. Automaton has 3648 states and 4917 transitions. Word has length 153 [2024-10-11 03:12:48,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:12:48,033 INFO L471 AbstractCegarLoop]: Abstraction has 3648 states and 4917 transitions. [2024-10-11 03:12:48,034 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 48.333333333333336) internal successors, (145), 3 states have internal predecessors, (145), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:12:48,034 INFO L276 IsEmpty]: Start isEmpty. Operand 3648 states and 4917 transitions. [2024-10-11 03:12:48,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2024-10-11 03:12:48,036 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:12:48,036 INFO L215 NwaCegarLoop]: trace histogram [3, 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] [2024-10-11 03:12:48,056 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-10-11 03:12:48,240 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17,4 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 03:12:48,241 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:12:48,242 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:12:48,242 INFO L85 PathProgramCache]: Analyzing trace with hash -1019155795, now seen corresponding path program 1 times [2024-10-11 03:12:48,242 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:12:48,242 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [887165266] [2024-10-11 03:12:48,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:12:48,242 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:12:48,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:48,370 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 20 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-10-11 03:12:48,371 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:12:48,371 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [887165266] [2024-10-11 03:12:48,371 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [887165266] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 03:12:48,371 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1574159452] [2024-10-11 03:12:48,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:12:48,372 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 03:12:48,372 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 03:12:48,373 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 03:12:48,375 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-11 03:12:48,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:48,491 INFO L255 TraceCheckSpWp]: Trace formula consists of 504 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-11 03:12:48,494 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 03:12:48,521 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-11 03:12:48,521 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 03:12:48,521 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1574159452] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:12:48,522 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 03:12:48,522 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2024-10-11 03:12:48,522 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [338959401] [2024-10-11 03:12:48,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:12:48,522 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 03:12:48,523 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:12:48,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 03:12:48,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-11 03:12:48,525 INFO L87 Difference]: Start difference. First operand 3648 states and 4917 transitions. Second operand has 3 states, 3 states have (on average 48.333333333333336) internal successors, (145), 3 states have internal predecessors, (145), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:12:48,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:12:48,940 INFO L93 Difference]: Finished difference Result 8438 states and 11553 transitions. [2024-10-11 03:12:48,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 03:12:48,940 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 48.333333333333336) internal successors, (145), 3 states have internal predecessors, (145), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 154 [2024-10-11 03:12:48,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:12:48,956 INFO L225 Difference]: With dead ends: 8438 [2024-10-11 03:12:48,956 INFO L226 Difference]: Without dead ends: 4953 [2024-10-11 03:12:48,962 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 159 GetRequests, 155 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-11 03:12:48,962 INFO L432 NwaCegarLoop]: 400 mSDtfsCounter, 197 mSDsluCounter, 200 mSDsCounter, 0 mSdLazyCounter, 229 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 197 SdHoareTripleChecker+Valid, 600 SdHoareTripleChecker+Invalid, 289 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 229 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-11 03:12:48,963 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [197 Valid, 600 Invalid, 289 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 229 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-11 03:12:48,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4953 states. [2024-10-11 03:12:49,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4953 to 4621. [2024-10-11 03:12:49,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4621 states, 4615 states have (on average 1.313759479956663) internal successors, (6063), 4619 states have internal predecessors, (6063), 5 states have call successors, (5), 1 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:12:49,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4621 states to 4621 states and 6068 transitions. [2024-10-11 03:12:49,131 INFO L78 Accepts]: Start accepts. Automaton has 4621 states and 6068 transitions. Word has length 154 [2024-10-11 03:12:49,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:12:49,132 INFO L471 AbstractCegarLoop]: Abstraction has 4621 states and 6068 transitions. [2024-10-11 03:12:49,132 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 48.333333333333336) internal successors, (145), 3 states have internal predecessors, (145), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:12:49,133 INFO L276 IsEmpty]: Start isEmpty. Operand 4621 states and 6068 transitions. [2024-10-11 03:12:49,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-10-11 03:12:49,135 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:12:49,135 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:12:49,154 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-10-11 03:12:49,335 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,5 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 03:12:49,336 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:12:49,336 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:12:49,336 INFO L85 PathProgramCache]: Analyzing trace with hash 512092272, now seen corresponding path program 1 times [2024-10-11 03:12:49,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:12:49,337 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1730014098] [2024-10-11 03:12:49,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:12:49,337 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:12:49,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:49,609 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 5 proven. 42 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-10-11 03:12:49,610 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:12:49,610 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1730014098] [2024-10-11 03:12:49,613 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1730014098] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 03:12:49,613 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1379613697] [2024-10-11 03:12:49,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:12:49,614 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 03:12:49,614 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 03:12:49,616 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 03:12:49,618 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-10-11 03:12:49,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:49,738 INFO L255 TraceCheckSpWp]: Trace formula consists of 508 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-10-11 03:12:49,741 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 03:12:49,926 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 5 proven. 42 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-10-11 03:12:49,926 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 03:12:50,083 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 5 proven. 42 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-10-11 03:12:50,084 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1379613697] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 03:12:50,084 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 03:12:50,084 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 9 [2024-10-11 03:12:50,084 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [760235144] [2024-10-11 03:12:50,084 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 03:12:50,085 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-11 03:12:50,086 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:12:50,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-11 03:12:50,087 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-10-11 03:12:50,087 INFO L87 Difference]: Start difference. First operand 4621 states and 6068 transitions. Second operand has 9 states, 9 states have (on average 16.88888888888889) internal successors, (152), 9 states have internal predecessors, (152), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:12:50,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:12:50,677 INFO L93 Difference]: Finished difference Result 12918 states and 16987 transitions. [2024-10-11 03:12:50,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-11 03:12:50,678 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 16.88888888888889) internal successors, (152), 9 states have internal predecessors, (152), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 156 [2024-10-11 03:12:50,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:12:50,698 INFO L225 Difference]: With dead ends: 12918 [2024-10-11 03:12:50,699 INFO L226 Difference]: Without dead ends: 8460 [2024-10-11 03:12:50,706 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 329 GetRequests, 313 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=64, Invalid=242, Unknown=0, NotChecked=0, Total=306 [2024-10-11 03:12:50,708 INFO L432 NwaCegarLoop]: 518 mSDtfsCounter, 878 mSDsluCounter, 3148 mSDsCounter, 0 mSdLazyCounter, 318 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 878 SdHoareTripleChecker+Valid, 3666 SdHoareTripleChecker+Invalid, 340 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 318 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-11 03:12:50,708 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [878 Valid, 3666 Invalid, 340 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 318 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-11 03:12:50,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8460 states. [2024-10-11 03:12:50,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8460 to 7193. [2024-10-11 03:12:50,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7193 states, 7187 states have (on average 1.327953248921664) internal successors, (9544), 7191 states have internal predecessors, (9544), 5 states have call successors, (5), 1 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:12:51,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7193 states to 7193 states and 9549 transitions. [2024-10-11 03:12:51,006 INFO L78 Accepts]: Start accepts. Automaton has 7193 states and 9549 transitions. Word has length 156 [2024-10-11 03:12:51,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:12:51,007 INFO L471 AbstractCegarLoop]: Abstraction has 7193 states and 9549 transitions. [2024-10-11 03:12:51,007 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 16.88888888888889) internal successors, (152), 9 states have internal predecessors, (152), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:12:51,007 INFO L276 IsEmpty]: Start isEmpty. Operand 7193 states and 9549 transitions. [2024-10-11 03:12:51,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 252 [2024-10-11 03:12:51,010 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:12:51,011 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:12:51,029 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-10-11 03:12:51,215 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,6 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 03:12:51,216 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:12:51,217 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:12:51,217 INFO L85 PathProgramCache]: Analyzing trace with hash 1812968908, now seen corresponding path program 1 times [2024-10-11 03:12:51,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:12:51,217 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1915555270] [2024-10-11 03:12:51,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:12:51,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:12:51,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:51,616 INFO L134 CoverageAnalysis]: Checked inductivity of 206 backedges. 10 proven. 187 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-10-11 03:12:51,618 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:12:51,619 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1915555270] [2024-10-11 03:12:51,619 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1915555270] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 03:12:51,619 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [545484981] [2024-10-11 03:12:51,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:12:51,619 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 03:12:51,619 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 03:12:51,621 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 03:12:51,623 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-10-11 03:12:51,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:51,792 INFO L255 TraceCheckSpWp]: Trace formula consists of 766 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-10-11 03:12:51,796 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 03:12:52,061 INFO L134 CoverageAnalysis]: Checked inductivity of 206 backedges. 10 proven. 187 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-10-11 03:12:52,062 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 03:12:52,337 INFO L134 CoverageAnalysis]: Checked inductivity of 206 backedges. 10 proven. 187 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-10-11 03:12:52,338 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [545484981] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 03:12:52,338 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 03:12:52,338 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 11 [2024-10-11 03:12:52,338 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1958388044] [2024-10-11 03:12:52,338 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 03:12:52,340 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-10-11 03:12:52,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:12:52,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-10-11 03:12:52,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2024-10-11 03:12:52,341 INFO L87 Difference]: Start difference. First operand 7193 states and 9549 transitions. Second operand has 11 states, 11 states have (on average 22.272727272727273) internal successors, (245), 11 states have internal predecessors, (245), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:12:53,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:12:53,268 INFO L93 Difference]: Finished difference Result 18534 states and 24431 transitions. [2024-10-11 03:12:53,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-10-11 03:12:53,269 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 22.272727272727273) internal successors, (245), 11 states have internal predecessors, (245), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 251 [2024-10-11 03:12:53,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:12:53,294 INFO L225 Difference]: With dead ends: 18534 [2024-10-11 03:12:53,294 INFO L226 Difference]: Without dead ends: 11504 [2024-10-11 03:12:53,302 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 524 GetRequests, 505 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=67, Invalid=353, Unknown=0, NotChecked=0, Total=420 [2024-10-11 03:12:53,303 INFO L432 NwaCegarLoop]: 975 mSDtfsCounter, 1474 mSDsluCounter, 7076 mSDsCounter, 0 mSdLazyCounter, 687 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1474 SdHoareTripleChecker+Valid, 8051 SdHoareTripleChecker+Invalid, 727 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 687 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-11 03:12:53,304 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1474 Valid, 8051 Invalid, 727 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 687 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-11 03:12:53,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11504 states. [2024-10-11 03:12:53,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11504 to 9424. [2024-10-11 03:12:53,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9424 states, 9418 states have (on average 1.3324485028668507) internal successors, (12549), 9422 states have internal predecessors, (12549), 5 states have call successors, (5), 1 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:12:53,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9424 states to 9424 states and 12554 transitions. [2024-10-11 03:12:53,645 INFO L78 Accepts]: Start accepts. Automaton has 9424 states and 12554 transitions. Word has length 251 [2024-10-11 03:12:53,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:12:53,645 INFO L471 AbstractCegarLoop]: Abstraction has 9424 states and 12554 transitions. [2024-10-11 03:12:53,646 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 22.272727272727273) internal successors, (245), 11 states have internal predecessors, (245), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:12:53,646 INFO L276 IsEmpty]: Start isEmpty. Operand 9424 states and 12554 transitions. [2024-10-11 03:12:53,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 348 [2024-10-11 03:12:53,651 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:12:53,651 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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] [2024-10-11 03:12:53,670 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-10-11 03:12:53,851 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2024-10-11 03:12:53,852 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:12:53,853 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:12:53,853 INFO L85 PathProgramCache]: Analyzing trace with hash -492424867, now seen corresponding path program 1 times [2024-10-11 03:12:53,853 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:12:53,853 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1756375680] [2024-10-11 03:12:53,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:12:53,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:12:53,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:54,529 INFO L134 CoverageAnalysis]: Checked inductivity of 464 backedges. 122 proven. 329 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-10-11 03:12:54,530 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:12:54,530 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1756375680] [2024-10-11 03:12:54,530 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1756375680] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 03:12:54,530 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1551245831] [2024-10-11 03:12:54,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:12:54,531 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 03:12:54,531 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 03:12:54,533 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 03:12:54,537 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-10-11 03:12:54,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:54,746 INFO L255 TraceCheckSpWp]: Trace formula consists of 1025 conjuncts, 31 conjuncts are in the unsatisfiable core [2024-10-11 03:12:54,753 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 03:12:55,216 INFO L134 CoverageAnalysis]: Checked inductivity of 464 backedges. 15 proven. 436 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-10-11 03:12:55,217 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 03:12:55,558 INFO L134 CoverageAnalysis]: Checked inductivity of 464 backedges. 15 proven. 436 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-10-11 03:12:55,558 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1551245831] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 03:12:55,559 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 03:12:55,559 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 18 [2024-10-11 03:12:55,559 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2104254509] [2024-10-11 03:12:55,559 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 03:12:55,561 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-10-11 03:12:55,561 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:12:55,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-10-11 03:12:55,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=260, Unknown=0, NotChecked=0, Total=306 [2024-10-11 03:12:55,563 INFO L87 Difference]: Start difference. First operand 9424 states and 12554 transitions. Second operand has 18 states, 18 states have (on average 29.38888888888889) internal successors, (529), 18 states have internal predecessors, (529), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:12:56,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:12:56,825 INFO L93 Difference]: Finished difference Result 23812 states and 31430 transitions. [2024-10-11 03:12:56,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-10-11 03:12:56,825 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 29.38888888888889) internal successors, (529), 18 states have internal predecessors, (529), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 347 [2024-10-11 03:12:56,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:12:56,860 INFO L225 Difference]: With dead ends: 23812 [2024-10-11 03:12:56,861 INFO L226 Difference]: Without dead ends: 14551 [2024-10-11 03:12:56,877 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 733 GetRequests, 693 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 360 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=259, Invalid=1463, Unknown=0, NotChecked=0, Total=1722 [2024-10-11 03:12:56,878 INFO L432 NwaCegarLoop]: 1470 mSDtfsCounter, 3144 mSDsluCounter, 16062 mSDsCounter, 0 mSdLazyCounter, 1483 mSolverCounterSat, 83 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3144 SdHoareTripleChecker+Valid, 17532 SdHoareTripleChecker+Invalid, 1566 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 83 IncrementalHoareTripleChecker+Valid, 1483 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-11 03:12:56,878 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3144 Valid, 17532 Invalid, 1566 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [83 Valid, 1483 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-11 03:12:56,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14551 states. [2024-10-11 03:12:57,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14551 to 11507. [2024-10-11 03:12:57,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11507 states, 11501 states have (on average 1.3371011216415964) internal successors, (15378), 11505 states have internal predecessors, (15378), 5 states have call successors, (5), 1 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:12:57,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11507 states to 11507 states and 15383 transitions. [2024-10-11 03:12:57,374 INFO L78 Accepts]: Start accepts. Automaton has 11507 states and 15383 transitions. Word has length 347 [2024-10-11 03:12:57,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:12:57,375 INFO L471 AbstractCegarLoop]: Abstraction has 11507 states and 15383 transitions. [2024-10-11 03:12:57,375 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 29.38888888888889) internal successors, (529), 18 states have internal predecessors, (529), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:12:57,375 INFO L276 IsEmpty]: Start isEmpty. Operand 11507 states and 15383 transitions. [2024-10-11 03:12:57,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 446 [2024-10-11 03:12:57,382 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:12:57,383 INFO L215 NwaCegarLoop]: trace histogram [9, 8, 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, 3, 3, 3, 3, 3, 3, 3, 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] [2024-10-11 03:12:57,402 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-10-11 03:12:57,587 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,8 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 03:12:57,588 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:12:57,589 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:12:57,589 INFO L85 PathProgramCache]: Analyzing trace with hash 1405805113, now seen corresponding path program 1 times [2024-10-11 03:12:57,589 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:12:57,589 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [199285440] [2024-10-11 03:12:57,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:12:57,590 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:12:57,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:57,718 INFO L134 CoverageAnalysis]: Checked inductivity of 731 backedges. 85 proven. 0 refuted. 0 times theorem prover too weak. 646 trivial. 0 not checked. [2024-10-11 03:12:57,718 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:12:57,718 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [199285440] [2024-10-11 03:12:57,718 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [199285440] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:12:57,720 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:12:57,720 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 03:12:57,720 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1587245887] [2024-10-11 03:12:57,720 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:12:57,721 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 03:12:57,721 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:12:57,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 03:12:57,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 03:12:57,722 INFO L87 Difference]: Start difference. First operand 11507 states and 15383 transitions. Second operand has 3 states, 3 states have (on average 55.0) internal successors, (165), 3 states have internal predecessors, (165), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:12:57,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:12:57,934 INFO L93 Difference]: Finished difference Result 13067 states and 17179 transitions. [2024-10-11 03:12:57,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 03:12:57,934 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 3 states have internal predecessors, (165), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 445 [2024-10-11 03:12:57,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:12:57,944 INFO L225 Difference]: With dead ends: 13067 [2024-10-11 03:12:57,944 INFO L226 Difference]: Without dead ends: 1619 [2024-10-11 03:12:57,956 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 03:12:57,957 INFO L432 NwaCegarLoop]: 256 mSDtfsCounter, 132 mSDsluCounter, 104 mSDsCounter, 0 mSdLazyCounter, 120 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 360 SdHoareTripleChecker+Invalid, 126 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 03:12:57,957 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [132 Valid, 360 Invalid, 126 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 120 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 03:12:57,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1619 states. [2024-10-11 03:12:58,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1619 to 1057. [2024-10-11 03:12:58,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1057 states, 1053 states have (on average 1.0778727445394112) internal successors, (1135), 1055 states have internal predecessors, (1135), 3 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:12:58,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1057 states to 1057 states and 1138 transitions. [2024-10-11 03:12:58,011 INFO L78 Accepts]: Start accepts. Automaton has 1057 states and 1138 transitions. Word has length 445 [2024-10-11 03:12:58,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:12:58,012 INFO L471 AbstractCegarLoop]: Abstraction has 1057 states and 1138 transitions. [2024-10-11 03:12:58,012 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 3 states have internal predecessors, (165), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:12:58,013 INFO L276 IsEmpty]: Start isEmpty. Operand 1057 states and 1138 transitions. [2024-10-11 03:12:58,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 447 [2024-10-11 03:12:58,018 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:12:58,018 INFO L215 NwaCegarLoop]: trace histogram [9, 8, 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, 3, 3, 3, 3, 3, 3, 3, 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] [2024-10-11 03:12:58,018 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-10-11 03:12:58,020 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:12:58,021 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:12:58,021 INFO L85 PathProgramCache]: Analyzing trace with hash -782781155, now seen corresponding path program 1 times [2024-10-11 03:12:58,021 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:12:58,021 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1099098130] [2024-10-11 03:12:58,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:12:58,021 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:12:58,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:58,255 INFO L134 CoverageAnalysis]: Checked inductivity of 731 backedges. 85 proven. 0 refuted. 0 times theorem prover too weak. 646 trivial. 0 not checked. [2024-10-11 03:12:58,255 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:12:58,255 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1099098130] [2024-10-11 03:12:58,256 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1099098130] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:12:58,256 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:12:58,256 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-11 03:12:58,256 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1473786945] [2024-10-11 03:12:58,256 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:12:58,257 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 03:12:58,257 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:12:58,257 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 03:12:58,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-11 03:12:58,258 INFO L87 Difference]: Start difference. First operand 1057 states and 1138 transitions. Second operand has 7 states, 7 states have (on average 23.714285714285715) internal successors, (166), 7 states have internal predecessors, (166), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:12:58,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:12:58,427 INFO L93 Difference]: Finished difference Result 1441 states and 1574 transitions. [2024-10-11 03:12:58,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-11 03:12:58,428 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.714285714285715) internal successors, (166), 7 states have internal predecessors, (166), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 446 [2024-10-11 03:12:58,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:12:58,433 INFO L225 Difference]: With dead ends: 1441 [2024-10-11 03:12:58,434 INFO L226 Difference]: Without dead ends: 1245 [2024-10-11 03:12:58,434 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2024-10-11 03:12:58,435 INFO L432 NwaCegarLoop]: 256 mSDtfsCounter, 218 mSDsluCounter, 1146 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 218 SdHoareTripleChecker+Valid, 1402 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 03:12:58,435 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [218 Valid, 1402 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 03:12:58,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1245 states. [2024-10-11 03:12:58,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1245 to 1120. [2024-10-11 03:12:58,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1120 states, 1116 states have (on average 1.0797491039426523) internal successors, (1205), 1118 states have internal predecessors, (1205), 3 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:12:58,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1120 states to 1120 states and 1208 transitions. [2024-10-11 03:12:58,480 INFO L78 Accepts]: Start accepts. Automaton has 1120 states and 1208 transitions. Word has length 446 [2024-10-11 03:12:58,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:12:58,481 INFO L471 AbstractCegarLoop]: Abstraction has 1120 states and 1208 transitions. [2024-10-11 03:12:58,481 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.714285714285715) internal successors, (166), 7 states have internal predecessors, (166), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:12:58,481 INFO L276 IsEmpty]: Start isEmpty. Operand 1120 states and 1208 transitions. [2024-10-11 03:12:58,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 448 [2024-10-11 03:12:58,485 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:12:58,485 INFO L215 NwaCegarLoop]: trace histogram [9, 8, 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, 3, 3, 3, 3, 3, 3, 3, 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] [2024-10-11 03:12:58,485 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-10-11 03:12:58,486 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:12:58,486 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:12:58,486 INFO L85 PathProgramCache]: Analyzing trace with hash -1528078224, now seen corresponding path program 1 times [2024-10-11 03:12:58,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:12:58,486 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [766399607] [2024-10-11 03:12:58,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:12:58,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:12:58,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:58,678 INFO L134 CoverageAnalysis]: Checked inductivity of 745 backedges. 99 proven. 0 refuted. 0 times theorem prover too weak. 646 trivial. 0 not checked. [2024-10-11 03:12:58,679 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:12:58,679 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [766399607] [2024-10-11 03:12:58,679 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [766399607] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:12:58,679 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:12:58,679 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 03:12:58,679 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1144836659] [2024-10-11 03:12:58,680 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:12:58,680 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 03:12:58,680 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:12:58,681 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 03:12:58,681 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-11 03:12:58,681 INFO L87 Difference]: Start difference. First operand 1120 states and 1208 transitions. Second operand has 5 states, 5 states have (on average 33.4) internal successors, (167), 5 states have internal predecessors, (167), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:12:58,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:12:58,772 INFO L93 Difference]: Finished difference Result 1307 states and 1414 transitions. [2024-10-11 03:12:58,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 03:12:58,773 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 33.4) internal successors, (167), 5 states have internal predecessors, (167), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 447 [2024-10-11 03:12:58,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:12:58,781 INFO L225 Difference]: With dead ends: 1307 [2024-10-11 03:12:58,781 INFO L226 Difference]: Without dead ends: 1111 [2024-10-11 03:12:58,782 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-10-11 03:12:58,783 INFO L432 NwaCegarLoop]: 243 mSDtfsCounter, 176 mSDsluCounter, 547 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 176 SdHoareTripleChecker+Valid, 790 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 03:12:58,783 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [176 Valid, 790 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 03:12:58,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1111 states. [2024-10-11 03:12:58,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1111 to 1107. [2024-10-11 03:12:58,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1107 states, 1104 states have (on average 1.0679347826086956) internal successors, (1179), 1105 states have internal predecessors, (1179), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:12:58,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1107 states to 1107 states and 1181 transitions. [2024-10-11 03:12:58,835 INFO L78 Accepts]: Start accepts. Automaton has 1107 states and 1181 transitions. Word has length 447 [2024-10-11 03:12:58,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:12:58,836 INFO L471 AbstractCegarLoop]: Abstraction has 1107 states and 1181 transitions. [2024-10-11 03:12:58,836 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 33.4) internal successors, (167), 5 states have internal predecessors, (167), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:12:58,836 INFO L276 IsEmpty]: Start isEmpty. Operand 1107 states and 1181 transitions. [2024-10-11 03:12:58,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 502 [2024-10-11 03:12:58,839 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:12:58,840 INFO L215 NwaCegarLoop]: trace histogram [10, 8, 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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] [2024-10-11 03:12:58,840 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-10-11 03:12:58,840 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:12:58,840 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:12:58,841 INFO L85 PathProgramCache]: Analyzing trace with hash 724651279, now seen corresponding path program 1 times [2024-10-11 03:12:58,841 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:12:58,841 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2048377276] [2024-10-11 03:12:58,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:12:58,841 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:12:58,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:59,690 INFO L134 CoverageAnalysis]: Checked inductivity of 836 backedges. 93 proven. 253 refuted. 0 times theorem prover too weak. 490 trivial. 0 not checked. [2024-10-11 03:12:59,690 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:12:59,691 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2048377276] [2024-10-11 03:12:59,691 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2048377276] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 03:12:59,691 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [653882111] [2024-10-11 03:12:59,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:12:59,691 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 03:12:59,691 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 03:12:59,693 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 03:12:59,694 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-10-11 03:12:59,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:59,926 INFO L255 TraceCheckSpWp]: Trace formula consists of 1418 conjuncts, 31 conjuncts are in the unsatisfiable core [2024-10-11 03:12:59,932 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 03:13:00,522 INFO L134 CoverageAnalysis]: Checked inductivity of 836 backedges. 93 proven. 253 refuted. 0 times theorem prover too weak. 490 trivial. 0 not checked. [2024-10-11 03:13:00,523 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 03:13:01,089 INFO L134 CoverageAnalysis]: Checked inductivity of 836 backedges. 25 proven. 321 refuted. 0 times theorem prover too weak. 490 trivial. 0 not checked. [2024-10-11 03:13:01,089 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [653882111] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 03:13:01,089 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 03:13:01,090 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 16, 16] total 26 [2024-10-11 03:13:01,090 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1704356866] [2024-10-11 03:13:01,090 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 03:13:01,091 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-10-11 03:13:01,091 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:13:01,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-10-11 03:13:01,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=585, Unknown=0, NotChecked=0, Total=650 [2024-10-11 03:13:01,094 INFO L87 Difference]: Start difference. First operand 1107 states and 1181 transitions. Second operand has 26 states, 26 states have (on average 14.538461538461538) internal successors, (378), 26 states have internal predecessors, (378), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:13:01,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:13:01,568 INFO L93 Difference]: Finished difference Result 1231 states and 1309 transitions. [2024-10-11 03:13:01,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-10-11 03:13:01,569 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 14.538461538461538) internal successors, (378), 26 states have internal predecessors, (378), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 501 [2024-10-11 03:13:01,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:13:01,574 INFO L225 Difference]: With dead ends: 1231 [2024-10-11 03:13:01,574 INFO L226 Difference]: Without dead ends: 1228 [2024-10-11 03:13:01,575 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1032 GetRequests, 995 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 250 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=169, Invalid=1313, Unknown=0, NotChecked=0, Total=1482 [2024-10-11 03:13:01,575 INFO L432 NwaCegarLoop]: 362 mSDtfsCounter, 666 mSDsluCounter, 5626 mSDsCounter, 0 mSdLazyCounter, 682 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 666 SdHoareTripleChecker+Valid, 5988 SdHoareTripleChecker+Invalid, 684 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 682 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-11 03:13:01,576 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [666 Valid, 5988 Invalid, 684 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 682 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-11 03:13:01,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1228 states. [2024-10-11 03:13:01,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1228 to 1201. [2024-10-11 03:13:01,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1201 states, 1198 states have (on average 1.0659432387312187) internal successors, (1277), 1199 states have internal predecessors, (1277), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:13:01,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1201 states to 1201 states and 1279 transitions. [2024-10-11 03:13:01,631 INFO L78 Accepts]: Start accepts. Automaton has 1201 states and 1279 transitions. Word has length 501 [2024-10-11 03:13:01,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:13:01,632 INFO L471 AbstractCegarLoop]: Abstraction has 1201 states and 1279 transitions. [2024-10-11 03:13:01,633 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 14.538461538461538) internal successors, (378), 26 states have internal predecessors, (378), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:13:01,633 INFO L276 IsEmpty]: Start isEmpty. Operand 1201 states and 1279 transitions. [2024-10-11 03:13:01,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 548 [2024-10-11 03:13:01,636 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:13:01,637 INFO L215 NwaCegarLoop]: trace histogram [11, 8, 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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] [2024-10-11 03:13:01,655 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-10-11 03:13:01,837 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2024-10-11 03:13:01,838 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:13:01,838 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:13:01,838 INFO L85 PathProgramCache]: Analyzing trace with hash 1933207870, now seen corresponding path program 1 times [2024-10-11 03:13:01,838 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:13:01,838 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1597632774] [2024-10-11 03:13:01,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:13:01,839 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:13:01,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:13:02,379 INFO L134 CoverageAnalysis]: Checked inductivity of 966 backedges. 271 proven. 45 refuted. 0 times theorem prover too weak. 650 trivial. 0 not checked. [2024-10-11 03:13:02,379 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:13:02,380 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1597632774] [2024-10-11 03:13:02,380 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1597632774] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 03:13:02,380 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [623900580] [2024-10-11 03:13:02,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:13:02,380 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 03:13:02,381 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 03:13:02,382 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 03:13:02,384 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-10-11 03:13:02,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:13:02,611 INFO L255 TraceCheckSpWp]: Trace formula consists of 1544 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-10-11 03:13:02,620 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 03:13:02,789 INFO L134 CoverageAnalysis]: Checked inductivity of 966 backedges. 271 proven. 45 refuted. 0 times theorem prover too weak. 650 trivial. 0 not checked. [2024-10-11 03:13:02,790 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 03:13:02,957 INFO L134 CoverageAnalysis]: Checked inductivity of 966 backedges. 271 proven. 45 refuted. 0 times theorem prover too weak. 650 trivial. 0 not checked. [2024-10-11 03:13:02,957 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [623900580] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 03:13:02,957 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 03:13:02,957 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 9 [2024-10-11 03:13:02,958 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1411981537] [2024-10-11 03:13:02,958 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 03:13:02,959 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-11 03:13:02,959 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:13:02,959 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-11 03:13:02,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-10-11 03:13:02,960 INFO L87 Difference]: Start difference. First operand 1201 states and 1279 transitions. Second operand has 9 states, 9 states have (on average 29.444444444444443) internal successors, (265), 9 states have internal predecessors, (265), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:13:03,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:13:03,137 INFO L93 Difference]: Finished difference Result 1577 states and 1685 transitions. [2024-10-11 03:13:03,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-11 03:13:03,137 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 29.444444444444443) internal successors, (265), 9 states have internal predecessors, (265), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 547 [2024-10-11 03:13:03,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:13:03,142 INFO L225 Difference]: With dead ends: 1577 [2024-10-11 03:13:03,143 INFO L226 Difference]: Without dead ends: 1394 [2024-10-11 03:13:03,143 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1111 GetRequests, 1098 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=163, Unknown=0, NotChecked=0, Total=210 [2024-10-11 03:13:03,144 INFO L432 NwaCegarLoop]: 339 mSDtfsCounter, 384 mSDsluCounter, 2002 mSDsCounter, 0 mSdLazyCounter, 236 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 384 SdHoareTripleChecker+Valid, 2341 SdHoareTripleChecker+Invalid, 242 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 236 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 03:13:03,144 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [384 Valid, 2341 Invalid, 242 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 236 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 03:13:03,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1394 states. [2024-10-11 03:13:03,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1394 to 1282. [2024-10-11 03:13:03,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1282 states, 1279 states have (on average 1.0656763096168882) internal successors, (1363), 1280 states have internal predecessors, (1363), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:13:03,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1282 states to 1282 states and 1365 transitions. [2024-10-11 03:13:03,191 INFO L78 Accepts]: Start accepts. Automaton has 1282 states and 1365 transitions. Word has length 547 [2024-10-11 03:13:03,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:13:03,192 INFO L471 AbstractCegarLoop]: Abstraction has 1282 states and 1365 transitions. [2024-10-11 03:13:03,193 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 29.444444444444443) internal successors, (265), 9 states have internal predecessors, (265), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:13:03,193 INFO L276 IsEmpty]: Start isEmpty. Operand 1282 states and 1365 transitions. [2024-10-11 03:13:03,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 604 [2024-10-11 03:13:03,197 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:13:03,197 INFO L215 NwaCegarLoop]: trace histogram [12, 8, 7, 7, 7, 7, 7, 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-10-11 03:13:03,217 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-10-11 03:13:03,397 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26,10 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 03:13:03,398 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:13:03,398 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:13:03,399 INFO L85 PathProgramCache]: Analyzing trace with hash -434578402, now seen corresponding path program 1 times [2024-10-11 03:13:03,399 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:13:03,399 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [90872510] [2024-10-11 03:13:03,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:13:03,399 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:13:03,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:13:05,677 INFO L134 CoverageAnalysis]: Checked inductivity of 1133 backedges. 174 proven. 758 refuted. 0 times theorem prover too weak. 201 trivial. 0 not checked. [2024-10-11 03:13:05,678 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:13:05,678 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [90872510] [2024-10-11 03:13:05,678 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [90872510] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 03:13:05,678 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1774207662] [2024-10-11 03:13:05,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:13:05,678 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 03:13:05,678 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 03:13:05,680 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 03:13:05,682 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-10-11 03:13:05,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:13:05,948 INFO L255 TraceCheckSpWp]: Trace formula consists of 1681 conjuncts, 43 conjuncts are in the unsatisfiable core [2024-10-11 03:13:05,955 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 03:13:06,956 INFO L134 CoverageAnalysis]: Checked inductivity of 1133 backedges. 235 proven. 663 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-10-11 03:13:06,956 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 03:13:07,534 INFO L134 CoverageAnalysis]: Checked inductivity of 1133 backedges. 30 proven. 868 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-10-11 03:13:07,534 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1774207662] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 03:13:07,534 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 03:13:07,534 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 20, 20] total 32 [2024-10-11 03:13:07,535 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1736378563] [2024-10-11 03:13:07,535 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 03:13:07,536 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2024-10-11 03:13:07,536 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:13:07,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2024-10-11 03:13:07,537 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=909, Unknown=0, NotChecked=0, Total=992 [2024-10-11 03:13:07,538 INFO L87 Difference]: Start difference. First operand 1282 states and 1365 transitions. Second operand has 32 states, 32 states have (on average 20.875) internal successors, (668), 32 states have internal predecessors, (668), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:13:08,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:13:08,231 INFO L93 Difference]: Finished difference Result 1406 states and 1493 transitions. [2024-10-11 03:13:08,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-10-11 03:13:08,232 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 32 states have (on average 20.875) internal successors, (668), 32 states have internal predecessors, (668), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 603 [2024-10-11 03:13:08,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:13:08,237 INFO L225 Difference]: With dead ends: 1406 [2024-10-11 03:13:08,237 INFO L226 Difference]: Without dead ends: 1403 [2024-10-11 03:13:08,238 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1247 GetRequests, 1199 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 480 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=229, Invalid=2221, Unknown=0, NotChecked=0, Total=2450 [2024-10-11 03:13:08,239 INFO L432 NwaCegarLoop]: 555 mSDtfsCounter, 900 mSDsluCounter, 11840 mSDsCounter, 0 mSdLazyCounter, 1352 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 900 SdHoareTripleChecker+Valid, 12395 SdHoareTripleChecker+Invalid, 1355 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1352 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-11 03:13:08,239 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [900 Valid, 12395 Invalid, 1355 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1352 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-11 03:13:08,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1403 states. [2024-10-11 03:13:08,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1403 to 1376. [2024-10-11 03:13:08,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1376 states, 1373 states have (on average 1.0640932265112892) internal successors, (1461), 1374 states have internal predecessors, (1461), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:13:08,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1376 states to 1376 states and 1463 transitions. [2024-10-11 03:13:08,306 INFO L78 Accepts]: Start accepts. Automaton has 1376 states and 1463 transitions. Word has length 603 [2024-10-11 03:13:08,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:13:08,307 INFO L471 AbstractCegarLoop]: Abstraction has 1376 states and 1463 transitions. [2024-10-11 03:13:08,308 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 20.875) internal successors, (668), 32 states have internal predecessors, (668), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:13:08,308 INFO L276 IsEmpty]: Start isEmpty. Operand 1376 states and 1463 transitions. [2024-10-11 03:13:08,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 650 [2024-10-11 03:13:08,312 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:13:08,313 INFO L215 NwaCegarLoop]: trace histogram [13, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:13:08,333 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2024-10-11 03:13:08,513 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2024-10-11 03:13:08,514 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:13:08,514 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:13:08,514 INFO L85 PathProgramCache]: Analyzing trace with hash 1332213261, now seen corresponding path program 1 times [2024-10-11 03:13:08,515 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:13:08,515 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1407325266] [2024-10-11 03:13:08,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:13:08,515 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:13:08,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:13:10,020 INFO L134 CoverageAnalysis]: Checked inductivity of 1311 backedges. 30 proven. 928 refuted. 0 times theorem prover too weak. 353 trivial. 0 not checked. [2024-10-11 03:13:10,020 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:13:10,020 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1407325266] [2024-10-11 03:13:10,020 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1407325266] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 03:13:10,020 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2144676409] [2024-10-11 03:13:10,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:13:10,021 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 03:13:10,021 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 03:13:10,023 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 03:13:10,024 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-10-11 03:13:10,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:13:10,326 INFO L255 TraceCheckSpWp]: Trace formula consists of 1807 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-10-11 03:13:10,335 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 03:13:10,564 INFO L134 CoverageAnalysis]: Checked inductivity of 1311 backedges. 457 proven. 200 refuted. 0 times theorem prover too weak. 654 trivial. 0 not checked. [2024-10-11 03:13:10,564 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 03:13:10,763 INFO L134 CoverageAnalysis]: Checked inductivity of 1311 backedges. 457 proven. 200 refuted. 0 times theorem prover too weak. 654 trivial. 0 not checked. [2024-10-11 03:13:10,764 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2144676409] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 03:13:10,764 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 03:13:10,764 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 11, 11] total 23 [2024-10-11 03:13:10,765 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1110168208] [2024-10-11 03:13:10,765 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 03:13:10,766 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-10-11 03:13:10,766 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:13:10,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-10-11 03:13:10,768 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=463, Unknown=0, NotChecked=0, Total=506 [2024-10-11 03:13:10,768 INFO L87 Difference]: Start difference. First operand 1376 states and 1463 transitions. Second operand has 23 states, 23 states have (on average 31.695652173913043) internal successors, (729), 23 states have internal predecessors, (729), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:13:12,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:13:12,124 INFO L93 Difference]: Finished difference Result 1876 states and 1999 transitions. [2024-10-11 03:13:12,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2024-10-11 03:13:12,125 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 31.695652173913043) internal successors, (729), 23 states have internal predecessors, (729), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 649 [2024-10-11 03:13:12,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:13:12,131 INFO L225 Difference]: With dead ends: 1876 [2024-10-11 03:13:12,131 INFO L226 Difference]: Without dead ends: 1693 [2024-10-11 03:13:12,133 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1388 GetRequests, 1316 SyntacticMatches, 0 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1236 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=538, Invalid=4864, Unknown=0, NotChecked=0, Total=5402 [2024-10-11 03:13:12,133 INFO L432 NwaCegarLoop]: 650 mSDtfsCounter, 1573 mSDsluCounter, 11569 mSDsCounter, 0 mSdLazyCounter, 1516 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1573 SdHoareTripleChecker+Valid, 12219 SdHoareTripleChecker+Invalid, 1540 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 1516 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-11 03:13:12,134 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1573 Valid, 12219 Invalid, 1540 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 1516 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-11 03:13:12,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1693 states. [2024-10-11 03:13:12,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1693 to 1553. [2024-10-11 03:13:12,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1553 states, 1550 states have (on average 1.063225806451613) internal successors, (1648), 1551 states have internal predecessors, (1648), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:13:12,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1553 states to 1553 states and 1650 transitions. [2024-10-11 03:13:12,248 INFO L78 Accepts]: Start accepts. Automaton has 1553 states and 1650 transitions. Word has length 649 [2024-10-11 03:13:12,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:13:12,249 INFO L471 AbstractCegarLoop]: Abstraction has 1553 states and 1650 transitions. [2024-10-11 03:13:12,249 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 31.695652173913043) internal successors, (729), 23 states have internal predecessors, (729), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:13:12,249 INFO L276 IsEmpty]: Start isEmpty. Operand 1553 states and 1650 transitions. [2024-10-11 03:13:12,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 707 [2024-10-11 03:13:12,256 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:13:12,257 INFO L215 NwaCegarLoop]: trace histogram [14, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:13:12,272 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2024-10-11 03:13:12,457 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2024-10-11 03:13:12,458 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:13:12,459 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:13:12,459 INFO L85 PathProgramCache]: Analyzing trace with hash -84862364, now seen corresponding path program 1 times [2024-10-11 03:13:12,459 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:13:12,459 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1147571194] [2024-10-11 03:13:12,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:13:12,460 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:13:12,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:13:14,902 INFO L134 CoverageAnalysis]: Checked inductivity of 1540 backedges. 456 proven. 967 refuted. 0 times theorem prover too weak. 117 trivial. 0 not checked. [2024-10-11 03:13:14,902 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:13:14,902 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1147571194] [2024-10-11 03:13:14,902 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1147571194] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 03:13:14,902 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1731423580] [2024-10-11 03:13:14,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:13:14,903 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 03:13:14,903 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 03:13:14,904 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 03:13:14,906 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-10-11 03:13:15,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:13:15,219 INFO L255 TraceCheckSpWp]: Trace formula consists of 1945 conjuncts, 55 conjuncts are in the unsatisfiable core [2024-10-11 03:13:15,228 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 03:13:16,902 INFO L134 CoverageAnalysis]: Checked inductivity of 1540 backedges. 288 proven. 1174 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2024-10-11 03:13:16,902 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 03:13:17,672 INFO L134 CoverageAnalysis]: Checked inductivity of 1540 backedges. 35 proven. 1427 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2024-10-11 03:13:17,672 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1731423580] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 03:13:17,672 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 03:13:17,673 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [32, 24, 24] total 57 [2024-10-11 03:13:17,673 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2023181207] [2024-10-11 03:13:17,673 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 03:13:17,674 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 57 states [2024-10-11 03:13:17,675 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:13:17,676 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 57 interpolants. [2024-10-11 03:13:17,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=138, Invalid=3054, Unknown=0, NotChecked=0, Total=3192 [2024-10-11 03:13:17,678 INFO L87 Difference]: Start difference. First operand 1553 states and 1650 transitions. Second operand has 57 states, 57 states have (on average 25.29824561403509) internal successors, (1442), 57 states have internal predecessors, (1442), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:13:21,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:13:21,111 INFO L93 Difference]: Finished difference Result 1717 states and 1817 transitions. [2024-10-11 03:13:21,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 77 states. [2024-10-11 03:13:21,112 INFO L78 Accepts]: Start accepts. Automaton has has 57 states, 57 states have (on average 25.29824561403509) internal successors, (1442), 57 states have internal predecessors, (1442), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 706 [2024-10-11 03:13:21,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:13:21,118 INFO L225 Difference]: With dead ends: 1717 [2024-10-11 03:13:21,118 INFO L226 Difference]: Without dead ends: 1714 [2024-10-11 03:13:21,123 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1548 GetRequests, 1419 SyntacticMatches, 0 SemanticMatches, 129 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3821 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=1006, Invalid=16024, Unknown=0, NotChecked=0, Total=17030 [2024-10-11 03:13:21,123 INFO L432 NwaCegarLoop]: 814 mSDtfsCounter, 3539 mSDsluCounter, 33016 mSDsCounter, 0 mSdLazyCounter, 4635 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3539 SdHoareTripleChecker+Valid, 33830 SdHoareTripleChecker+Invalid, 4682 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 4635 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-10-11 03:13:21,124 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3539 Valid, 33830 Invalid, 4682 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [47 Valid, 4635 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-10-11 03:13:21,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1714 states. [2024-10-11 03:13:21,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1714 to 1647. [2024-10-11 03:13:21,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1647 states, 1644 states have (on average 1.062043795620438) internal successors, (1746), 1645 states have internal predecessors, (1746), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:13:21,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1647 states to 1647 states and 1748 transitions. [2024-10-11 03:13:21,212 INFO L78 Accepts]: Start accepts. Automaton has 1647 states and 1748 transitions. Word has length 706 [2024-10-11 03:13:21,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:13:21,214 INFO L471 AbstractCegarLoop]: Abstraction has 1647 states and 1748 transitions. [2024-10-11 03:13:21,214 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 57 states, 57 states have (on average 25.29824561403509) internal successors, (1442), 57 states have internal predecessors, (1442), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:13:21,215 INFO L276 IsEmpty]: Start isEmpty. Operand 1647 states and 1748 transitions. [2024-10-11 03:13:21,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 753 [2024-10-11 03:13:21,220 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:13:21,221 INFO L215 NwaCegarLoop]: trace histogram [15, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:13:21,242 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-10-11 03:13:21,421 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,13 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 03:13:21,422 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:13:21,422 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:13:21,423 INFO L85 PathProgramCache]: Analyzing trace with hash 1592404435, now seen corresponding path program 1 times [2024-10-11 03:13:21,423 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:13:21,424 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1730320146] [2024-10-11 03:13:21,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:13:21,424 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:13:21,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:13:22,242 INFO L134 CoverageAnalysis]: Checked inductivity of 1767 backedges. 643 proven. 466 refuted. 0 times theorem prover too weak. 658 trivial. 0 not checked. [2024-10-11 03:13:22,242 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:13:22,242 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1730320146] [2024-10-11 03:13:22,242 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1730320146] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 03:13:22,242 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [416508256] [2024-10-11 03:13:22,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:13:22,243 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 03:13:22,243 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 03:13:22,245 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 03:13:22,246 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-10-11 03:13:22,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:13:22,566 INFO L255 TraceCheckSpWp]: Trace formula consists of 2071 conjuncts, 31 conjuncts are in the unsatisfiable core [2024-10-11 03:13:22,573 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 03:13:22,857 INFO L134 CoverageAnalysis]: Checked inductivity of 1767 backedges. 643 proven. 466 refuted. 0 times theorem prover too weak. 658 trivial. 0 not checked. [2024-10-11 03:13:22,857 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 03:13:23,127 INFO L134 CoverageAnalysis]: Checked inductivity of 1767 backedges. 643 proven. 466 refuted. 0 times theorem prover too weak. 658 trivial. 0 not checked. [2024-10-11 03:13:23,127 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [416508256] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 03:13:23,128 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 03:13:23,128 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 13 [2024-10-11 03:13:23,128 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1375236320] [2024-10-11 03:13:23,128 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 03:13:23,129 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-11 03:13:23,129 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:13:23,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-11 03:13:23,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2024-10-11 03:13:23,130 INFO L87 Difference]: Start difference. First operand 1647 states and 1748 transitions. Second operand has 13 states, 13 states have (on average 35.84615384615385) internal successors, (466), 13 states have internal predecessors, (466), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:13:23,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:13:23,522 INFO L93 Difference]: Finished difference Result 2499 states and 2657 transitions. [2024-10-11 03:13:23,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-10-11 03:13:23,523 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 35.84615384615385) internal successors, (466), 13 states have internal predecessors, (466), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 752 [2024-10-11 03:13:23,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:13:23,528 INFO L225 Difference]: With dead ends: 2499 [2024-10-11 03:13:23,528 INFO L226 Difference]: Without dead ends: 2045 [2024-10-11 03:13:23,529 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1535 GetRequests, 1514 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=71, Invalid=435, Unknown=0, NotChecked=0, Total=506 [2024-10-11 03:13:23,530 INFO L432 NwaCegarLoop]: 679 mSDtfsCounter, 743 mSDsluCounter, 6366 mSDsCounter, 0 mSdLazyCounter, 718 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 743 SdHoareTripleChecker+Valid, 7045 SdHoareTripleChecker+Invalid, 734 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 718 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-11 03:13:23,530 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [743 Valid, 7045 Invalid, 734 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 718 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-11 03:13:23,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2045 states. [2024-10-11 03:13:23,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2045 to 1909. [2024-10-11 03:13:23,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1909 states, 1906 states have (on average 1.0608604407135362) internal successors, (2022), 1907 states have internal predecessors, (2022), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:13:23,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1909 states to 1909 states and 2024 transitions. [2024-10-11 03:13:23,598 INFO L78 Accepts]: Start accepts. Automaton has 1909 states and 2024 transitions. Word has length 752 [2024-10-11 03:13:23,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:13:23,599 INFO L471 AbstractCegarLoop]: Abstraction has 1909 states and 2024 transitions. [2024-10-11 03:13:23,599 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 35.84615384615385) internal successors, (466), 13 states have internal predecessors, (466), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:13:23,599 INFO L276 IsEmpty]: Start isEmpty. Operand 1909 states and 2024 transitions. [2024-10-11 03:13:23,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 811 [2024-10-11 03:13:23,605 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:13:23,606 INFO L215 NwaCegarLoop]: trace histogram [16, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-10-11 03:13:23,628 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-10-11 03:13:23,806 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,14 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 03:13:23,807 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:13:23,807 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:13:23,807 INFO L85 PathProgramCache]: Analyzing trace with hash 1107816856, now seen corresponding path program 1 times [2024-10-11 03:13:23,807 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:13:23,807 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1605640911] [2024-10-11 03:13:23,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:13:23,808 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:13:23,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:13:25,570 INFO L134 CoverageAnalysis]: Checked inductivity of 2058 backedges. 107 proven. 1926 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2024-10-11 03:13:25,570 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:13:25,570 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1605640911] [2024-10-11 03:13:25,571 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1605640911] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 03:13:25,571 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1227719657] [2024-10-11 03:13:25,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:13:25,571 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 03:13:25,571 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 03:13:25,573 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 03:13:25,576 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-10-11 03:13:25,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:13:25,922 INFO L255 TraceCheckSpWp]: Trace formula consists of 2210 conjuncts, 67 conjuncts are in the unsatisfiable core [2024-10-11 03:13:25,931 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 03:13:27,332 INFO L134 CoverageAnalysis]: Checked inductivity of 2058 backedges. 249 proven. 1784 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2024-10-11 03:13:27,332 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 03:13:28,058 INFO L134 CoverageAnalysis]: Checked inductivity of 2058 backedges. 40 proven. 1993 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2024-10-11 03:13:28,058 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1227719657] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 03:13:28,058 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 03:13:28,058 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28, 28, 28] total 42 [2024-10-11 03:13:28,058 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1810211203] [2024-10-11 03:13:28,059 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 03:13:28,060 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 42 states [2024-10-11 03:13:28,060 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:13:28,061 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2024-10-11 03:13:28,061 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=111, Invalid=1611, Unknown=0, NotChecked=0, Total=1722 [2024-10-11 03:13:28,061 INFO L87 Difference]: Start difference. First operand 1909 states and 2024 transitions. Second operand has 42 states, 42 states have (on average 28.595238095238095) internal successors, (1201), 42 states have internal predecessors, (1201), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:13:29,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:13:29,555 INFO L93 Difference]: Finished difference Result 3367 states and 3564 transitions. [2024-10-11 03:13:29,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2024-10-11 03:13:29,556 INFO L78 Accepts]: Start accepts. Automaton has has 42 states, 42 states have (on average 28.595238095238095) internal successors, (1201), 42 states have internal predecessors, (1201), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 810 [2024-10-11 03:13:29,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:13:29,563 INFO L225 Difference]: With dead ends: 3367 [2024-10-11 03:13:29,563 INFO L226 Difference]: Without dead ends: 3364 [2024-10-11 03:13:29,565 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1681 GetRequests, 1614 SyntacticMatches, 0 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 817 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=319, Invalid=4373, Unknown=0, NotChecked=0, Total=4692 [2024-10-11 03:13:29,566 INFO L432 NwaCegarLoop]: 1008 mSDtfsCounter, 1742 mSDsluCounter, 28468 mSDsCounter, 0 mSdLazyCounter, 2958 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1742 SdHoareTripleChecker+Valid, 29476 SdHoareTripleChecker+Invalid, 2972 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 2958 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-10-11 03:13:29,566 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1742 Valid, 29476 Invalid, 2972 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 2958 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-10-11 03:13:29,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3364 states. [2024-10-11 03:13:29,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3364 to 2692. [2024-10-11 03:13:29,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2692 states, 2689 states have (on average 1.0587579025660097) internal successors, (2847), 2690 states have internal predecessors, (2847), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:13:29,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2692 states to 2692 states and 2849 transitions. [2024-10-11 03:13:29,707 INFO L78 Accepts]: Start accepts. Automaton has 2692 states and 2849 transitions. Word has length 810 [2024-10-11 03:13:29,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:13:29,708 INFO L471 AbstractCegarLoop]: Abstraction has 2692 states and 2849 transitions. [2024-10-11 03:13:29,709 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 42 states, 42 states have (on average 28.595238095238095) internal successors, (1201), 42 states have internal predecessors, (1201), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:13:29,709 INFO L276 IsEmpty]: Start isEmpty. Operand 2692 states and 2849 transitions. [2024-10-11 03:13:29,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 857 [2024-10-11 03:13:29,714 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:13:29,715 INFO L215 NwaCegarLoop]: trace histogram [17, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 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, 3, 3, 3, 3, 3, 3, 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] [2024-10-11 03:13:29,731 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-10-11 03:13:29,915 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable31 [2024-10-11 03:13:29,916 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:13:29,916 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:13:29,916 INFO L85 PathProgramCache]: Analyzing trace with hash 577799687, now seen corresponding path program 1 times [2024-10-11 03:13:29,916 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:13:29,916 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [172953844] [2024-10-11 03:13:29,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:13:29,917 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:13:29,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:13:31,093 INFO L134 CoverageAnalysis]: Checked inductivity of 2335 backedges. 413 proven. 1493 refuted. 0 times theorem prover too weak. 429 trivial. 0 not checked. [2024-10-11 03:13:31,094 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:13:31,094 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [172953844] [2024-10-11 03:13:31,094 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [172953844] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 03:13:31,094 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [43444534] [2024-10-11 03:13:31,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:13:31,094 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 03:13:31,094 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 03:13:31,095 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 03:13:31,097 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-10-11 03:13:31,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:13:31,438 INFO L255 TraceCheckSpWp]: Trace formula consists of 2336 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-10-11 03:13:31,450 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 03:13:31,892 INFO L134 CoverageAnalysis]: Checked inductivity of 2335 backedges. 1673 proven. 0 refuted. 0 times theorem prover too weak. 662 trivial. 0 not checked. [2024-10-11 03:13:31,892 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 03:13:31,892 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [43444534] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:13:31,892 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 03:13:31,892 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [22] total 25 [2024-10-11 03:13:31,893 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [850842293] [2024-10-11 03:13:31,893 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:13:31,893 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-10-11 03:13:31,893 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:13:31,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-10-11 03:13:31,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=535, Unknown=0, NotChecked=0, Total=600 [2024-10-11 03:13:31,894 INFO L87 Difference]: Start difference. First operand 2692 states and 2849 transitions. Second operand has 11 states, 11 states have (on average 51.63636363636363) internal successors, (568), 11 states have internal predecessors, (568), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:13:32,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:13:32,148 INFO L93 Difference]: Finished difference Result 2803 states and 2964 transitions. [2024-10-11 03:13:32,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-11 03:13:32,149 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 51.63636363636363) internal successors, (568), 11 states have internal predecessors, (568), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 856 [2024-10-11 03:13:32,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:13:32,153 INFO L225 Difference]: With dead ends: 2803 [2024-10-11 03:13:32,153 INFO L226 Difference]: Without dead ends: 0 [2024-10-11 03:13:32,155 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 898 GetRequests, 866 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=163, Invalid=959, Unknown=0, NotChecked=0, Total=1122 [2024-10-11 03:13:32,156 INFO L432 NwaCegarLoop]: 714 mSDtfsCounter, 754 mSDsluCounter, 1434 mSDsCounter, 0 mSdLazyCounter, 174 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 754 SdHoareTripleChecker+Valid, 2148 SdHoareTripleChecker+Invalid, 190 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 174 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 03:13:32,156 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [754 Valid, 2148 Invalid, 190 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 174 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 03:13:32,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-10-11 03:13:32,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-10-11 03:13:32,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:13:32,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-10-11 03:13:32,160 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 856 [2024-10-11 03:13:32,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:13:32,161 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-10-11 03:13:32,161 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 51.63636363636363) internal successors, (568), 11 states have internal predecessors, (568), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:13:32,161 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-10-11 03:13:32,162 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-10-11 03:13:32,164 INFO L782 garLoopResultBuilder]: Registering result SAFE for location errorErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-10-11 03:13:32,181 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2024-10-11 03:13:32,365 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32,16 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 03:13:32,368 INFO L407 BasicCegarLoop]: Path program 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] [2024-10-11 03:13:32,370 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.