./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.leader_election.2.prop1-func-interl.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a046e57d Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.leader_election.2.prop1-func-interl.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 15c3a6165f21ac98daf8821a71552024f9273c1b5c02806dc5b429501c698668 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-mul-div-a046e57-m [2024-10-12 23:00:45,517 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-12 23:00:45,564 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-10-12 23:00:45,569 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-12 23:00:45,570 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-12 23:00:45,593 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-12 23:00:45,596 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-12 23:00:45,596 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-12 23:00:45,597 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-12 23:00:45,597 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-12 23:00:45,598 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-12 23:00:45,598 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-12 23:00:45,598 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-12 23:00:45,599 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-12 23:00:45,600 INFO L153 SettingsManager]: * Use SBE=true [2024-10-12 23:00:45,600 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-12 23:00:45,600 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-12 23:00:45,601 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-12 23:00:45,601 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-12 23:00:45,601 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-12 23:00:45,601 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-12 23:00:45,604 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-12 23:00:45,604 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-12 23:00:45,604 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-12 23:00:45,604 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-12 23:00:45,604 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-12 23:00:45,605 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-12 23:00:45,605 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-12 23:00:45,605 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-12 23:00:45,605 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-12 23:00:45,605 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-12 23:00:45,606 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-12 23:00:45,606 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-12 23:00:45,606 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-12 23:00:45,607 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-12 23:00:45,607 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-12 23:00:45,607 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-12 23:00:45,607 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-12 23:00:45,607 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-12 23:00:45,607 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 15c3a6165f21ac98daf8821a71552024f9273c1b5c02806dc5b429501c698668 [2024-10-12 23:00:45,856 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-12 23:00:45,877 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-12 23:00:45,880 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-12 23:00:45,881 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-12 23:00:45,882 INFO L274 PluginConnector]: CDTParser initialized [2024-10-12 23:00:45,883 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.leader_election.2.prop1-func-interl.c [2024-10-12 23:00:47,119 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-12 23:00:47,513 INFO L384 CDTParser]: Found 1 translation units. [2024-10-12 23:00:47,514 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.leader_election.2.prop1-func-interl.c [2024-10-12 23:00:47,553 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5d922e9e7/024d55a4d9154dbea06eecef63937a01/FLAGc610145aa [2024-10-12 23:00:47,566 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5d922e9e7/024d55a4d9154dbea06eecef63937a01 [2024-10-12 23:00:47,569 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-12 23:00:47,570 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-12 23:00:47,573 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-12 23:00:47,574 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-12 23:00:47,578 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-12 23:00:47,579 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 11:00:47" (1/1) ... [2024-10-12 23:00:47,580 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d7ea55c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:00:47, skipping insertion in model container [2024-10-12 23:00:47,580 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 11:00:47" (1/1) ... [2024-10-12 23:00:47,695 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-12 23:00:47,945 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/hardware-verification-bv/btor2c-lazyMod.leader_election.2.prop1-func-interl.c[1182,1195] [2024-10-12 23:00:48,697 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-12 23:00:48,708 INFO L200 MainTranslator]: Completed pre-run [2024-10-12 23:00:48,718 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/hardware-verification-bv/btor2c-lazyMod.leader_election.2.prop1-func-interl.c[1182,1195] [2024-10-12 23:00:49,231 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-12 23:00:49,244 INFO L204 MainTranslator]: Completed translation [2024-10-12 23:00:49,244 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:00:49 WrapperNode [2024-10-12 23:00:49,245 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-12 23:00:49,245 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-12 23:00:49,246 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-12 23:00:49,246 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-12 23:00:49,251 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:00:49" (1/1) ... [2024-10-12 23:00:49,472 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:00:49" (1/1) ... [2024-10-12 23:00:52,159 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 29910 [2024-10-12 23:00:52,160 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-12 23:00:52,160 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-12 23:00:52,160 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-12 23:00:52,161 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-12 23:00:52,170 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:00:49" (1/1) ... [2024-10-12 23:00:52,171 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:00:49" (1/1) ... [2024-10-12 23:00:52,877 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:00:49" (1/1) ... [2024-10-12 23:00:53,198 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]. [2024-10-12 23:00:53,199 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:00:49" (1/1) ... [2024-10-12 23:00:53,199 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:00:49" (1/1) ... [2024-10-12 23:00:54,182 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:00:49" (1/1) ... [2024-10-12 23:00:54,293 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:00:49" (1/1) ... [2024-10-12 23:00:54,435 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:00:49" (1/1) ... [2024-10-12 23:00:54,543 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:00:49" (1/1) ... [2024-10-12 23:00:55,037 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-12 23:00:55,038 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-12 23:00:55,039 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-12 23:00:55,039 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-12 23:00:55,040 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:00:49" (1/1) ... [2024-10-12 23:00:55,044 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-12 23:00:55,054 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 23:00:55,071 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-12 23:00:55,073 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-12 23:00:55,116 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-12 23:00:55,117 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-12 23:00:55,117 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-12 23:00:55,117 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-12 23:00:56,245 INFO L238 CfgBuilder]: Building ICFG [2024-10-12 23:00:56,247 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-12 23:02:02,515 INFO L? ?]: Removed 16825 outVars from TransFormulas that were not future-live. [2024-10-12 23:02:02,515 INFO L287 CfgBuilder]: Performing block encoding [2024-10-12 23:02:02,912 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-12 23:02:02,912 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-12 23:02:02,913 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 11:02:02 BoogieIcfgContainer [2024-10-12 23:02:02,913 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-12 23:02:02,914 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-12 23:02:02,914 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-12 23:02:02,921 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-12 23:02:02,921 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.10 11:00:47" (1/3) ... [2024-10-12 23:02:02,922 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d470e4e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 11:02:02, skipping insertion in model container [2024-10-12 23:02:02,922 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:00:49" (2/3) ... [2024-10-12 23:02:02,922 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d470e4e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 11:02:02, skipping insertion in model container [2024-10-12 23:02:02,922 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 11:02:02" (3/3) ... [2024-10-12 23:02:02,923 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.leader_election.2.prop1-func-interl.c [2024-10-12 23:02:02,944 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-12 23:02:02,944 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-12 23:02:03,109 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-12 23:02:03,116 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;@4e806433, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-12 23:02:03,116 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-12 23:02:03,141 INFO L276 IsEmpty]: Start isEmpty. Operand has 10297 states, 10295 states have (on average 1.5018941233608547) internal successors, (15462), 10296 states have internal predecessors, (15462), 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) [2024-10-12 23:02:03,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 431 [2024-10-12 23:02:03,172 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 23:02:03,173 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 23:02:03,174 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 23:02:03,178 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 23:02:03,178 INFO L85 PathProgramCache]: Analyzing trace with hash 1257791016, now seen corresponding path program 1 times [2024-10-12 23:02:03,186 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 23:02:03,186 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1824169774] [2024-10-12 23:02:03,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 23:02:03,187 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 23:02:03,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 23:02:04,720 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 23:02:04,722 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 23:02:04,723 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1824169774] [2024-10-12 23:02:04,724 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1824169774] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 23:02:04,724 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 23:02:04,724 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-12 23:02:04,726 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1384856907] [2024-10-12 23:02:04,727 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 23:02:04,732 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-12 23:02:04,733 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 23:02:04,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-12 23:02:04,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-12 23:02:04,779 INFO L87 Difference]: Start difference. First operand has 10297 states, 10295 states have (on average 1.5018941233608547) internal successors, (15462), 10296 states have internal predecessors, (15462), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 107.5) internal successors, (430), 4 states have internal predecessors, (430), 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) [2024-10-12 23:02:05,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 23:02:05,106 INFO L93 Difference]: Finished difference Result 20026 states and 30074 transitions. [2024-10-12 23:02:05,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-12 23:02:05,109 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 107.5) internal successors, (430), 4 states have internal predecessors, (430), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 430 [2024-10-12 23:02:05,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 23:02:05,159 INFO L225 Difference]: With dead ends: 20026 [2024-10-12 23:02:05,160 INFO L226 Difference]: Without dead ends: 10298 [2024-10-12 23:02:05,179 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-12 23:02:05,181 INFO L432 NwaCegarLoop]: 15457 mSDtfsCounter, 0 mSDsluCounter, 30909 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 46366 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-12 23:02:05,182 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 46366 Invalid, 13 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-12 23:02:05,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10298 states. [2024-10-12 23:02:05,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10298 to 10298. [2024-10-12 23:02:05,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10298 states, 10297 states have (on average 1.501602408468486) internal successors, (15462), 10297 states have internal predecessors, (15462), 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) [2024-10-12 23:02:05,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10298 states to 10298 states and 15462 transitions. [2024-10-12 23:02:05,404 INFO L78 Accepts]: Start accepts. Automaton has 10298 states and 15462 transitions. Word has length 430 [2024-10-12 23:02:05,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 23:02:05,405 INFO L471 AbstractCegarLoop]: Abstraction has 10298 states and 15462 transitions. [2024-10-12 23:02:05,406 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 107.5) internal successors, (430), 4 states have internal predecessors, (430), 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) [2024-10-12 23:02:05,406 INFO L276 IsEmpty]: Start isEmpty. Operand 10298 states and 15462 transitions. [2024-10-12 23:02:05,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 432 [2024-10-12 23:02:05,410 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 23:02:05,411 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 23:02:05,417 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-12 23:02:05,418 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 23:02:05,418 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 23:02:05,418 INFO L85 PathProgramCache]: Analyzing trace with hash 338513754, now seen corresponding path program 1 times [2024-10-12 23:02:05,418 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 23:02:05,418 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1348028173] [2024-10-12 23:02:05,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 23:02:05,419 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 23:02:05,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 23:02:06,035 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 23:02:06,037 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 23:02:06,037 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1348028173] [2024-10-12 23:02:06,037 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1348028173] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 23:02:06,037 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 23:02:06,037 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-12 23:02:06,037 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1767994684] [2024-10-12 23:02:06,038 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 23:02:06,039 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-12 23:02:06,040 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 23:02:06,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-12 23:02:06,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-12 23:02:06,042 INFO L87 Difference]: Start difference. First operand 10298 states and 15462 transitions. Second operand has 4 states, 4 states have (on average 107.75) internal successors, (431), 4 states have internal predecessors, (431), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 23:02:06,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 23:02:06,289 INFO L93 Difference]: Finished difference Result 20029 states and 30074 transitions. [2024-10-12 23:02:06,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-12 23:02:06,291 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 107.75) internal successors, (431), 4 states have internal predecessors, (431), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 431 [2024-10-12 23:02:06,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 23:02:06,317 INFO L225 Difference]: With dead ends: 20029 [2024-10-12 23:02:06,317 INFO L226 Difference]: Without dead ends: 10300 [2024-10-12 23:02:06,330 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-12 23:02:06,331 INFO L432 NwaCegarLoop]: 15457 mSDtfsCounter, 0 mSDsluCounter, 30906 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 46363 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-12 23:02:06,331 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 46363 Invalid, 16 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-12 23:02:06,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10300 states. [2024-10-12 23:02:06,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10300 to 10300. [2024-10-12 23:02:06,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10300 states, 10299 states have (on average 1.501505000485484) internal successors, (15464), 10299 states have internal predecessors, (15464), 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) [2024-10-12 23:02:06,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10300 states to 10300 states and 15464 transitions. [2024-10-12 23:02:06,507 INFO L78 Accepts]: Start accepts. Automaton has 10300 states and 15464 transitions. Word has length 431 [2024-10-12 23:02:06,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 23:02:06,508 INFO L471 AbstractCegarLoop]: Abstraction has 10300 states and 15464 transitions. [2024-10-12 23:02:06,508 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 107.75) internal successors, (431), 4 states have internal predecessors, (431), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 23:02:06,508 INFO L276 IsEmpty]: Start isEmpty. Operand 10300 states and 15464 transitions. [2024-10-12 23:02:06,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 433 [2024-10-12 23:02:06,514 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 23:02:06,514 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 23:02:06,514 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-12 23:02:06,515 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 23:02:06,518 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 23:02:06,519 INFO L85 PathProgramCache]: Analyzing trace with hash 806028609, now seen corresponding path program 1 times [2024-10-12 23:02:06,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 23:02:06,519 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [400414559] [2024-10-12 23:02:06,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 23:02:06,519 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 23:02:06,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 23:02:07,094 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 23:02:07,096 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 23:02:07,096 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [400414559] [2024-10-12 23:02:07,096 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [400414559] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 23:02:07,096 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 23:02:07,096 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-12 23:02:07,097 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1496766059] [2024-10-12 23:02:07,097 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 23:02:07,098 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-12 23:02:07,098 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 23:02:07,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-12 23:02:07,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-12 23:02:07,099 INFO L87 Difference]: Start difference. First operand 10300 states and 15464 transitions. Second operand has 4 states, 4 states have (on average 108.0) internal successors, (432), 4 states have internal predecessors, (432), 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) [2024-10-12 23:02:07,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 23:02:07,307 INFO L93 Difference]: Finished difference Result 20037 states and 30084 transitions. [2024-10-12 23:02:07,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-12 23:02:07,309 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 108.0) internal successors, (432), 4 states have internal predecessors, (432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 432 [2024-10-12 23:02:07,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 23:02:07,340 INFO L225 Difference]: With dead ends: 20037 [2024-10-12 23:02:07,341 INFO L226 Difference]: Without dead ends: 10306 [2024-10-12 23:02:07,352 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-12 23:02:07,353 INFO L432 NwaCegarLoop]: 15457 mSDtfsCounter, 4 mSDsluCounter, 30900 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 46357 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-12 23:02:07,354 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 46357 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-12 23:02:07,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10306 states. [2024-10-12 23:02:07,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10306 to 10306. [2024-10-12 23:02:07,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10306 states, 10305 states have (on average 1.501407083939835) internal successors, (15472), 10305 states have internal predecessors, (15472), 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) [2024-10-12 23:02:07,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10306 states to 10306 states and 15472 transitions. [2024-10-12 23:02:07,520 INFO L78 Accepts]: Start accepts. Automaton has 10306 states and 15472 transitions. Word has length 432 [2024-10-12 23:02:07,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 23:02:07,520 INFO L471 AbstractCegarLoop]: Abstraction has 10306 states and 15472 transitions. [2024-10-12 23:02:07,521 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 108.0) internal successors, (432), 4 states have internal predecessors, (432), 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) [2024-10-12 23:02:07,521 INFO L276 IsEmpty]: Start isEmpty. Operand 10306 states and 15472 transitions. [2024-10-12 23:02:07,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 434 [2024-10-12 23:02:07,525 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 23:02:07,525 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 23:02:07,525 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-12 23:02:07,525 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 23:02:07,526 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 23:02:07,526 INFO L85 PathProgramCache]: Analyzing trace with hash 271142792, now seen corresponding path program 1 times [2024-10-12 23:02:07,526 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 23:02:07,526 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [960373423] [2024-10-12 23:02:07,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 23:02:07,526 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 23:02:07,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 23:02:08,031 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 23:02:08,031 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 23:02:08,031 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [960373423] [2024-10-12 23:02:08,031 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [960373423] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 23:02:08,031 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 23:02:08,032 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-12 23:02:08,032 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1325069107] [2024-10-12 23:02:08,032 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 23:02:08,032 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-12 23:02:08,032 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 23:02:08,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-12 23:02:08,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-12 23:02:08,033 INFO L87 Difference]: Start difference. First operand 10306 states and 15472 transitions. Second operand has 5 states, 5 states have (on average 86.6) internal successors, (433), 5 states have internal predecessors, (433), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 23:02:08,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 23:02:08,243 INFO L93 Difference]: Finished difference Result 20047 states and 30096 transitions. [2024-10-12 23:02:08,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-12 23:02:08,243 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 86.6) internal successors, (433), 5 states have internal predecessors, (433), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 433 [2024-10-12 23:02:08,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 23:02:08,258 INFO L225 Difference]: With dead ends: 20047 [2024-10-12 23:02:08,258 INFO L226 Difference]: Without dead ends: 10310 [2024-10-12 23:02:08,269 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-12 23:02:08,270 INFO L432 NwaCegarLoop]: 15457 mSDtfsCounter, 0 mSDsluCounter, 30900 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 46357 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-12 23:02:08,270 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 46357 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-12 23:02:08,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10310 states. [2024-10-12 23:02:08,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10310 to 10306. [2024-10-12 23:02:08,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10306 states, 10305 states have (on average 1.501407083939835) internal successors, (15472), 10305 states have internal predecessors, (15472), 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) [2024-10-12 23:02:08,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10306 states to 10306 states and 15472 transitions. [2024-10-12 23:02:08,415 INFO L78 Accepts]: Start accepts. Automaton has 10306 states and 15472 transitions. Word has length 433 [2024-10-12 23:02:08,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 23:02:08,415 INFO L471 AbstractCegarLoop]: Abstraction has 10306 states and 15472 transitions. [2024-10-12 23:02:08,416 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 86.6) internal successors, (433), 5 states have internal predecessors, (433), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 23:02:08,416 INFO L276 IsEmpty]: Start isEmpty. Operand 10306 states and 15472 transitions. [2024-10-12 23:02:08,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 435 [2024-10-12 23:02:08,420 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 23:02:08,420 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 23:02:08,420 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-12 23:02:08,421 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 23:02:08,421 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 23:02:08,421 INFO L85 PathProgramCache]: Analyzing trace with hash 724381530, now seen corresponding path program 1 times [2024-10-12 23:02:08,421 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 23:02:08,421 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1304916509] [2024-10-12 23:02:08,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 23:02:08,422 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 23:02:08,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 23:02:09,053 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 23:02:09,053 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 23:02:09,053 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1304916509] [2024-10-12 23:02:09,053 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1304916509] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 23:02:09,053 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 23:02:09,053 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-12 23:02:09,054 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1918406839] [2024-10-12 23:02:09,054 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 23:02:09,056 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-12 23:02:09,056 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 23:02:09,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-12 23:02:09,057 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-12 23:02:09,058 INFO L87 Difference]: Start difference. First operand 10306 states and 15472 transitions. Second operand has 5 states, 5 states have (on average 86.8) internal successors, (434), 4 states have internal predecessors, (434), 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)