./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/systemc/mem_slave_tlm.4.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3061b6dc Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/systemc/mem_slave_tlm.4.cil.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 69030034dd333d91bcd0f7615fd4a158a32a8c2c03a6334daabdaad4c77a89b5 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-18 14:33:29,191 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-18 14:33:29,255 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-18 14:33:29,260 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-18 14:33:29,262 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-18 14:33:29,282 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-18 14:33:29,283 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-18 14:33:29,283 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-18 14:33:29,284 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-18 14:33:29,285 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-18 14:33:29,285 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-18 14:33:29,285 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-18 14:33:29,286 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-18 14:33:29,286 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-18 14:33:29,286 INFO L153 SettingsManager]: * Use SBE=true [2024-11-18 14:33:29,286 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-18 14:33:29,287 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-18 14:33:29,287 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-18 14:33:29,287 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-18 14:33:29,287 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-18 14:33:29,288 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-18 14:33:29,288 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-18 14:33:29,288 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-18 14:33:29,288 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-18 14:33:29,288 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-18 14:33:29,289 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-18 14:33:29,289 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-18 14:33:29,289 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-18 14:33:29,289 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-18 14:33:29,290 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-18 14:33:29,290 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-18 14:33:29,290 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-18 14:33:29,290 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 14:33:29,290 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-18 14:33:29,291 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-18 14:33:29,291 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-18 14:33:29,291 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-18 14:33:29,291 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-18 14:33:29,291 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-18 14:33:29,292 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-18 14:33:29,292 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-18 14:33:29,292 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-18 14:33:29,292 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 69030034dd333d91bcd0f7615fd4a158a32a8c2c03a6334daabdaad4c77a89b5 [2024-11-18 14:33:29,499 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-18 14:33:29,515 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-18 14:33:29,517 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-18 14:33:29,518 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-18 14:33:29,518 INFO L274 PluginConnector]: CDTParser initialized [2024-11-18 14:33:29,519 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/systemc/mem_slave_tlm.4.cil.c [2024-11-18 14:33:30,739 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-18 14:33:30,927 INFO L384 CDTParser]: Found 1 translation units. [2024-11-18 14:33:30,928 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/systemc/mem_slave_tlm.4.cil.c [2024-11-18 14:33:30,938 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/803ceb093/2f4c139b72ee419f82b19b80510a6679/FLAG30f419748 [2024-11-18 14:33:30,950 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/803ceb093/2f4c139b72ee419f82b19b80510a6679 [2024-11-18 14:33:30,952 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-18 14:33:30,953 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-18 14:33:30,953 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-18 14:33:30,954 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-18 14:33:30,961 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-18 14:33:30,962 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 02:33:30" (1/1) ... [2024-11-18 14:33:30,963 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@57dfb747 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:33:30, skipping insertion in model container [2024-11-18 14:33:30,964 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 02:33:30" (1/1) ... [2024-11-18 14:33:31,003 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-18 14:33:31,142 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/systemc/mem_slave_tlm.4.cil.c[646,659] [2024-11-18 14:33:31,227 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 14:33:31,237 INFO L200 MainTranslator]: Completed pre-run [2024-11-18 14:33:31,247 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/systemc/mem_slave_tlm.4.cil.c[646,659] [2024-11-18 14:33:31,299 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 14:33:31,317 INFO L204 MainTranslator]: Completed translation [2024-11-18 14:33:31,318 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:33:31 WrapperNode [2024-11-18 14:33:31,318 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-18 14:33:31,319 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-18 14:33:31,320 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-18 14:33:31,320 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-18 14:33:31,325 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:33:31" (1/1) ... [2024-11-18 14:33:31,336 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:33:31" (1/1) ... [2024-11-18 14:33:31,382 INFO L138 Inliner]: procedures = 19, calls = 18, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 862 [2024-11-18 14:33:31,384 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-18 14:33:31,385 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-18 14:33:31,388 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-18 14:33:31,388 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-18 14:33:31,403 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:33:31" (1/1) ... [2024-11-18 14:33:31,404 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:33:31" (1/1) ... [2024-11-18 14:33:31,410 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:33:31" (1/1) ... [2024-11-18 14:33:31,443 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-18 14:33:31,444 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:33:31" (1/1) ... [2024-11-18 14:33:31,444 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:33:31" (1/1) ... [2024-11-18 14:33:31,450 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:33:31" (1/1) ... [2024-11-18 14:33:31,457 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:33:31" (1/1) ... [2024-11-18 14:33:31,462 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:33:31" (1/1) ... [2024-11-18 14:33:31,463 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:33:31" (1/1) ... [2024-11-18 14:33:31,468 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-18 14:33:31,469 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-18 14:33:31,469 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-18 14:33:31,469 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-18 14:33:31,469 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:33:31" (1/1) ... [2024-11-18 14:33:31,474 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 14:33:31,480 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 14:33:31,492 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-18 14:33:31,494 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-18 14:33:31,525 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-18 14:33:31,525 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-18 14:33:31,525 INFO L130 BoogieDeclarations]: Found specification of procedure error [2024-11-18 14:33:31,525 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2024-11-18 14:33:31,525 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-18 14:33:31,525 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-18 14:33:31,614 INFO L238 CfgBuilder]: Building ICFG [2024-11-18 14:33:31,617 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-18 14:33:32,197 INFO L? ?]: Removed 93 outVars from TransFormulas that were not future-live. [2024-11-18 14:33:32,197 INFO L287 CfgBuilder]: Performing block encoding [2024-11-18 14:33:32,218 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-18 14:33:32,219 INFO L316 CfgBuilder]: Removed 13 assume(true) statements. [2024-11-18 14:33:32,220 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 02:33:32 BoogieIcfgContainer [2024-11-18 14:33:32,220 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-18 14:33:32,221 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-18 14:33:32,221 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-18 14:33:32,225 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-18 14:33:32,225 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 02:33:30" (1/3) ... [2024-11-18 14:33:32,226 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73b157ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 02:33:32, skipping insertion in model container [2024-11-18 14:33:32,226 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:33:31" (2/3) ... [2024-11-18 14:33:32,227 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73b157ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 02:33:32, skipping insertion in model container [2024-11-18 14:33:32,227 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 02:33:32" (3/3) ... [2024-11-18 14:33:32,228 INFO L112 eAbstractionObserver]: Analyzing ICFG mem_slave_tlm.4.cil.c [2024-11-18 14:33:32,240 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-18 14:33:32,240 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-18 14:33:32,290 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-18 14:33:32,295 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;@68eb308e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-18 14:33:32,295 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-18 14:33:32,299 INFO L276 IsEmpty]: Start isEmpty. Operand has 277 states, 269 states have (on average 1.8550185873605949) internal successors, (499), 275 states have internal predecessors, (499), 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) [2024-11-18 14:33:32,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2024-11-18 14:33:32,308 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:33:32,308 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] [2024-11-18 14:33:32,309 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:33:32,312 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:33:32,313 INFO L85 PathProgramCache]: Analyzing trace with hash 193087539, now seen corresponding path program 1 times [2024-11-18 14:33:32,319 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:33:32,319 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1305160458] [2024-11-18 14:33:32,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:33:32,320 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:33:32,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:33:32,559 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:33:32,560 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:33:32,560 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1305160458] [2024-11-18 14:33:32,563 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1305160458] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:33:32,564 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:33:32,564 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 14:33:32,565 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1914542639] [2024-11-18 14:33:32,565 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:33:32,568 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 14:33:32,569 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:33:32,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 14:33:32,585 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 14:33:32,587 INFO L87 Difference]: Start difference. First operand has 277 states, 269 states have (on average 1.8550185873605949) internal successors, (499), 275 states have internal predecessors, (499), 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 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 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) [2024-11-18 14:33:32,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:33:32,890 INFO L93 Difference]: Finished difference Result 730 states and 1341 transitions. [2024-11-18 14:33:32,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 14:33:32,893 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 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 29 [2024-11-18 14:33:32,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:33:32,905 INFO L225 Difference]: With dead ends: 730 [2024-11-18 14:33:32,905 INFO L226 Difference]: Without dead ends: 450 [2024-11-18 14:33:32,910 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 [2024-11-18 14:33:32,912 INFO L432 NwaCegarLoop]: 479 mSDtfsCounter, 267 mSDsluCounter, 310 mSDsCounter, 0 mSdLazyCounter, 190 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 267 SdHoareTripleChecker+Valid, 789 SdHoareTripleChecker+Invalid, 252 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 190 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-18 14:33:32,913 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [267 Valid, 789 Invalid, 252 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 190 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-18 14:33:32,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 450 states. [2024-11-18 14:33:32,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 450 to 437. [2024-11-18 14:33:32,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 437 states, 431 states have (on average 1.6009280742459397) internal successors, (690), 435 states have internal predecessors, (690), 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) [2024-11-18 14:33:32,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 437 states to 437 states and 695 transitions. [2024-11-18 14:33:32,961 INFO L78 Accepts]: Start accepts. Automaton has 437 states and 695 transitions. Word has length 29 [2024-11-18 14:33:32,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:33:32,961 INFO L471 AbstractCegarLoop]: Abstraction has 437 states and 695 transitions. [2024-11-18 14:33:32,961 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 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) [2024-11-18 14:33:32,961 INFO L276 IsEmpty]: Start isEmpty. Operand 437 states and 695 transitions. [2024-11-18 14:33:32,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2024-11-18 14:33:32,963 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:33:32,963 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] [2024-11-18 14:33:32,963 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-18 14:33:32,963 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:33:32,964 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:33:32,964 INFO L85 PathProgramCache]: Analyzing trace with hash 909656450, now seen corresponding path program 1 times [2024-11-18 14:33:32,964 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:33:32,964 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1348337113] [2024-11-18 14:33:32,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:33:32,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:33:32,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:33:33,043 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:33:33,043 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:33:33,043 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1348337113] [2024-11-18 14:33:33,044 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1348337113] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:33:33,044 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:33:33,044 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 14:33:33,044 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1558890922] [2024-11-18 14:33:33,044 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:33:33,045 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 14:33:33,045 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:33:33,045 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 14:33:33,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 14:33:33,046 INFO L87 Difference]: Start difference. First operand 437 states and 695 transitions. Second operand has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 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) [2024-11-18 14:33:33,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:33:33,147 INFO L93 Difference]: Finished difference Result 1149 states and 1853 transitions. [2024-11-18 14:33:33,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 14:33:33,148 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 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 40 [2024-11-18 14:33:33,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:33:33,151 INFO L225 Difference]: With dead ends: 1149 [2024-11-18 14:33:33,151 INFO L226 Difference]: Without dead ends: 726 [2024-11-18 14:33:33,154 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 [2024-11-18 14:33:33,155 INFO L432 NwaCegarLoop]: 650 mSDtfsCounter, 330 mSDsluCounter, 382 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 330 SdHoareTripleChecker+Valid, 1032 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 14:33:33,155 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [330 Valid, 1032 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 14:33:33,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 726 states. [2024-11-18 14:33:33,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 726 to 713. [2024-11-18 14:33:33,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 713 states, 707 states have (on average 1.6350777934936351) internal successors, (1156), 711 states have internal predecessors, (1156), 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) [2024-11-18 14:33:33,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 713 states to 713 states and 1161 transitions. [2024-11-18 14:33:33,199 INFO L78 Accepts]: Start accepts. Automaton has 713 states and 1161 transitions. Word has length 40 [2024-11-18 14:33:33,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:33:33,200 INFO L471 AbstractCegarLoop]: Abstraction has 713 states and 1161 transitions. [2024-11-18 14:33:33,200 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 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) [2024-11-18 14:33:33,200 INFO L276 IsEmpty]: Start isEmpty. Operand 713 states and 1161 transitions. [2024-11-18 14:33:33,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2024-11-18 14:33:33,203 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:33:33,203 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] [2024-11-18 14:33:33,203 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-18 14:33:33,204 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:33:33,204 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:33:33,204 INFO L85 PathProgramCache]: Analyzing trace with hash -1642726185, now seen corresponding path program 1 times [2024-11-18 14:33:33,204 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:33:33,204 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1296017372] [2024-11-18 14:33:33,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:33:33,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:33:33,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:33:33,275 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:33:33,275 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:33:33,275 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1296017372] [2024-11-18 14:33:33,275 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1296017372] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:33:33,275 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:33:33,275 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 14:33:33,275 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [257116878] [2024-11-18 14:33:33,276 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:33:33,276 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 14:33:33,276 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:33:33,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 14:33:33,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 14:33:33,277 INFO L87 Difference]: Start difference. First operand 713 states and 1161 transitions. Second operand has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 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) [2024-11-18 14:33:33,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:33:33,313 INFO L93 Difference]: Finished difference Result 1793 states and 2916 transitions. [2024-11-18 14:33:33,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 14:33:33,314 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 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 41 [2024-11-18 14:33:33,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:33:33,319 INFO L225 Difference]: With dead ends: 1793 [2024-11-18 14:33:33,320 INFO L226 Difference]: Without dead ends: 1105 [2024-11-18 14:33:33,322 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 [2024-11-18 14:33:33,324 INFO L432 NwaCegarLoop]: 451 mSDtfsCounter, 357 mSDsluCounter, 366 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 357 SdHoareTripleChecker+Valid, 817 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:33:33,327 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [357 Valid, 817 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:33:33,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1105 states. [2024-11-18 14:33:33,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1105 to 1094. [2024-11-18 14:33:33,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1094 states, 1088 states have (on average 1.6231617647058822) internal successors, (1766), 1092 states have internal predecessors, (1766), 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) [2024-11-18 14:33:33,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1094 states to 1094 states and 1771 transitions. [2024-11-18 14:33:33,355 INFO L78 Accepts]: Start accepts. Automaton has 1094 states and 1771 transitions. Word has length 41 [2024-11-18 14:33:33,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:33:33,374 INFO L471 AbstractCegarLoop]: Abstraction has 1094 states and 1771 transitions. [2024-11-18 14:33:33,375 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 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) [2024-11-18 14:33:33,375 INFO L276 IsEmpty]: Start isEmpty. Operand 1094 states and 1771 transitions. [2024-11-18 14:33:33,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2024-11-18 14:33:33,376 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:33:33,376 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, 1, 1, 1, 1, 1] [2024-11-18 14:33:33,376 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-18 14:33:33,376 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:33:33,376 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:33:33,377 INFO L85 PathProgramCache]: Analyzing trace with hash -49710902, now seen corresponding path program 1 times [2024-11-18 14:33:33,377 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:33:33,377 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [383864549] [2024-11-18 14:33:33,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:33:33,377 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:33:33,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:33:33,470 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:33:33,470 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:33:33,470 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [383864549] [2024-11-18 14:33:33,470 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [383864549] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:33:33,470 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:33:33,470 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 14:33:33,471 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [803077589] [2024-11-18 14:33:33,471 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:33:33,471 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 14:33:33,471 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:33:33,471 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 14:33:33,472 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 14:33:33,472 INFO L87 Difference]: Start difference. First operand 1094 states and 1771 transitions. Second operand has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 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) [2024-11-18 14:33:33,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:33:33,748 INFO L93 Difference]: Finished difference Result 3018 states and 4863 transitions. [2024-11-18 14:33:33,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 14:33:33,749 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 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 48 [2024-11-18 14:33:33,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:33:33,756 INFO L225 Difference]: With dead ends: 3018 [2024-11-18 14:33:33,756 INFO L226 Difference]: Without dead ends: 1949 [2024-11-18 14:33:33,758 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 [2024-11-18 14:33:33,762 INFO L432 NwaCegarLoop]: 702 mSDtfsCounter, 588 mSDsluCounter, 884 mSDsCounter, 0 mSdLazyCounter, 286 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 588 SdHoareTripleChecker+Valid, 1586 SdHoareTripleChecker+Invalid, 297 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 286 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-18 14:33:33,762 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [588 Valid, 1586 Invalid, 297 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 286 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-18 14:33:33,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1949 states. [2024-11-18 14:33:33,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1949 to 1716. [2024-11-18 14:33:33,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1716 states, 1710 states have (on average 1.5988304093567252) internal successors, (2734), 1714 states have internal predecessors, (2734), 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) [2024-11-18 14:33:33,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1716 states to 1716 states and 2739 transitions. [2024-11-18 14:33:33,806 INFO L78 Accepts]: Start accepts. Automaton has 1716 states and 2739 transitions. Word has length 48 [2024-11-18 14:33:33,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:33:33,807 INFO L471 AbstractCegarLoop]: Abstraction has 1716 states and 2739 transitions. [2024-11-18 14:33:33,807 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 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) [2024-11-18 14:33:33,807 INFO L276 IsEmpty]: Start isEmpty. Operand 1716 states and 2739 transitions. [2024-11-18 14:33:33,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2024-11-18 14:33:33,809 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:33:33,809 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:33:33,810 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-18 14:33:33,810 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:33:33,810 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:33:33,810 INFO L85 PathProgramCache]: Analyzing trace with hash -1086798880, now seen corresponding path program 1 times [2024-11-18 14:33:33,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:33:33,811 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2007702937] [2024-11-18 14:33:33,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:33:33,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:33:33,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:33:33,884 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:33:33,884 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:33:33,884 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2007702937] [2024-11-18 14:33:33,885 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2007702937] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:33:33,885 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:33:33,885 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 14:33:33,885 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1787486202] [2024-11-18 14:33:33,886 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:33:33,886 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 14:33:33,887 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:33:33,887 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 14:33:33,887 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 14:33:33,887 INFO L87 Difference]: Start difference. First operand 1716 states and 2739 transitions. Second operand has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 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) [2024-11-18 14:33:34,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:33:34,281 INFO L93 Difference]: Finished difference Result 5101 states and 8048 transitions. [2024-11-18 14:33:34,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 14:33:34,282 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 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 53 [2024-11-18 14:33:34,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:33:34,292 INFO L225 Difference]: With dead ends: 5101 [2024-11-18 14:33:34,292 INFO L226 Difference]: Without dead ends: 3404 [2024-11-18 14:33:34,295 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 [2024-11-18 14:33:34,296 INFO L432 NwaCegarLoop]: 396 mSDtfsCounter, 750 mSDsluCounter, 681 mSDsCounter, 0 mSdLazyCounter, 339 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 750 SdHoareTripleChecker+Valid, 1077 SdHoareTripleChecker+Invalid, 392 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 339 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-18 14:33:34,296 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [750 Valid, 1077 Invalid, 392 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 339 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-18 14:33:34,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3404 states. [2024-11-18 14:33:34,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3404 to 3026. [2024-11-18 14:33:34,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3026 states, 3020 states have (on average 1.57317880794702) internal successors, (4751), 3024 states have internal predecessors, (4751), 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) [2024-11-18 14:33:34,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3026 states to 3026 states and 4756 transitions. [2024-11-18 14:33:34,362 INFO L78 Accepts]: Start accepts. Automaton has 3026 states and 4756 transitions. Word has length 53 [2024-11-18 14:33:34,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:33:34,362 INFO L471 AbstractCegarLoop]: Abstraction has 3026 states and 4756 transitions. [2024-11-18 14:33:34,362 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 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) [2024-11-18 14:33:34,362 INFO L276 IsEmpty]: Start isEmpty. Operand 3026 states and 4756 transitions. [2024-11-18 14:33:34,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2024-11-18 14:33:34,363 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:33:34,363 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:33:34,363 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-18 14:33:34,364 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:33:34,364 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:33:34,364 INFO L85 PathProgramCache]: Analyzing trace with hash 1057985257, now seen corresponding path program 1 times [2024-11-18 14:33:34,364 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:33:34,364 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1949422370] [2024-11-18 14:33:34,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:33:34,364 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:33:34,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:33:34,400 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:33:34,400 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:33:34,400 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1949422370] [2024-11-18 14:33:34,401 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1949422370] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:33:34,401 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:33:34,401 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 14:33:34,401 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1870224258] [2024-11-18 14:33:34,401 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:33:34,401 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 14:33:34,401 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:33:34,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 14:33:34,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 14:33:34,402 INFO L87 Difference]: Start difference. First operand 3026 states and 4756 transitions. Second operand has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 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) [2024-11-18 14:33:34,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:33:34,485 INFO L93 Difference]: Finished difference Result 7113 states and 11141 transitions. [2024-11-18 14:33:34,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 14:33:34,486 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 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 53 [2024-11-18 14:33:34,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:33:34,501 INFO L225 Difference]: With dead ends: 7113 [2024-11-18 14:33:34,501 INFO L226 Difference]: Without dead ends: 4110 [2024-11-18 14:33:34,505 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 [2024-11-18 14:33:34,506 INFO L432 NwaCegarLoop]: 448 mSDtfsCounter, 372 mSDsluCounter, 272 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 372 SdHoareTripleChecker+Valid, 720 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:33:34,506 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [372 Valid, 720 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:33:34,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4110 states. [2024-11-18 14:33:34,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4110 to 3926. [2024-11-18 14:33:34,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3926 states, 3920 states have (on average 1.5543367346938775) internal successors, (6093), 3924 states have internal predecessors, (6093), 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) [2024-11-18 14:33:34,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3926 states to 3926 states and 6098 transitions. [2024-11-18 14:33:34,597 INFO L78 Accepts]: Start accepts. Automaton has 3926 states and 6098 transitions. Word has length 53 [2024-11-18 14:33:34,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:33:34,598 INFO L471 AbstractCegarLoop]: Abstraction has 3926 states and 6098 transitions. [2024-11-18 14:33:34,598 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 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) [2024-11-18 14:33:34,598 INFO L276 IsEmpty]: Start isEmpty. Operand 3926 states and 6098 transitions. [2024-11-18 14:33:34,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-11-18 14:33:34,599 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:33:34,599 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] [2024-11-18 14:33:34,599 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-18 14:33:34,599 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:33:34,600 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:33:34,600 INFO L85 PathProgramCache]: Analyzing trace with hash 1585990245, now seen corresponding path program 1 times [2024-11-18 14:33:34,600 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:33:34,600 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1087189712] [2024-11-18 14:33:34,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:33:34,600 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:33:34,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:33:34,640 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:33:34,640 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:33:34,640 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1087189712] [2024-11-18 14:33:34,641 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1087189712] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:33:34,641 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:33:34,641 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 14:33:34,641 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1747630891] [2024-11-18 14:33:34,641 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:33:34,641 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 14:33:34,641 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:33:34,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 14:33:34,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 14:33:34,642 INFO L87 Difference]: Start difference. First operand 3926 states and 6098 transitions. Second operand has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 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) [2024-11-18 14:33:34,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:33:34,922 INFO L93 Difference]: Finished difference Result 9442 states and 14788 transitions. [2024-11-18 14:33:34,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 14:33:34,923 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 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 61 [2024-11-18 14:33:34,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:33:34,940 INFO L225 Difference]: With dead ends: 9442 [2024-11-18 14:33:34,940 INFO L226 Difference]: Without dead ends: 5539 [2024-11-18 14:33:34,946 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 [2024-11-18 14:33:34,946 INFO L432 NwaCegarLoop]: 593 mSDtfsCounter, 254 mSDsluCounter, 296 mSDsCounter, 0 mSdLazyCounter, 186 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 254 SdHoareTripleChecker+Valid, 889 SdHoareTripleChecker+Invalid, 253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 186 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-18 14:33:34,946 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [254 Valid, 889 Invalid, 253 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 186 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-18 14:33:34,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5539 states. [2024-11-18 14:33:35,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5539 to 4758. [2024-11-18 14:33:35,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4758 states, 4752 states have (on average 1.4983164983164983) internal successors, (7120), 4756 states have internal predecessors, (7120), 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) [2024-11-18 14:33:35,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4758 states to 4758 states and 7125 transitions. [2024-11-18 14:33:35,059 INFO L78 Accepts]: Start accepts. Automaton has 4758 states and 7125 transitions. Word has length 61 [2024-11-18 14:33:35,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:33:35,059 INFO L471 AbstractCegarLoop]: Abstraction has 4758 states and 7125 transitions. [2024-11-18 14:33:35,059 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 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) [2024-11-18 14:33:35,060 INFO L276 IsEmpty]: Start isEmpty. Operand 4758 states and 7125 transitions. [2024-11-18 14:33:35,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-11-18 14:33:35,061 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:33:35,062 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] [2024-11-18 14:33:35,062 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-18 14:33:35,062 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:33:35,062 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:33:35,063 INFO L85 PathProgramCache]: Analyzing trace with hash -1564004079, now seen corresponding path program 1 times [2024-11-18 14:33:35,063 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:33:35,063 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1204297606] [2024-11-18 14:33:35,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:33:35,063 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:33:35,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:33:35,111 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:33:35,111 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:33:35,111 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1204297606] [2024-11-18 14:33:35,111 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1204297606] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:33:35,111 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:33:35,111 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 14:33:35,111 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1674993849] [2024-11-18 14:33:35,111 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:33:35,112 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 14:33:35,112 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:33:35,112 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 14:33:35,112 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 14:33:35,112 INFO L87 Difference]: Start difference. First operand 4758 states and 7125 transitions. Second operand has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 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) [2024-11-18 14:33:35,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:33:35,233 INFO L93 Difference]: Finished difference Result 9359 states and 14027 transitions. [2024-11-18 14:33:35,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 14:33:35,234 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 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 [2024-11-18 14:33:35,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:33:35,248 INFO L225 Difference]: With dead ends: 9359 [2024-11-18 14:33:35,249 INFO L226 Difference]: Without dead ends: 4624 [2024-11-18 14:33:35,255 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 [2024-11-18 14:33:35,256 INFO L432 NwaCegarLoop]: 419 mSDtfsCounter, 349 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 349 SdHoareTripleChecker+Valid, 447 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:33:35,256 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [349 Valid, 447 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:33:35,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4624 states. [2024-11-18 14:33:35,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4624 to 4624. [2024-11-18 14:33:35,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4624 states, 4618 states have (on average 1.4766132524902555) internal successors, (6819), 4622 states have internal predecessors, (6819), 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) [2024-11-18 14:33:35,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4624 states to 4624 states and 6824 transitions. [2024-11-18 14:33:35,367 INFO L78 Accepts]: Start accepts. Automaton has 4624 states and 6824 transitions. Word has length 63 [2024-11-18 14:33:35,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:33:35,367 INFO L471 AbstractCegarLoop]: Abstraction has 4624 states and 6824 transitions. [2024-11-18 14:33:35,368 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 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) [2024-11-18 14:33:35,368 INFO L276 IsEmpty]: Start isEmpty. Operand 4624 states and 6824 transitions. [2024-11-18 14:33:35,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-11-18 14:33:35,370 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:33:35,370 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:33:35,370 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-18 14:33:35,370 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:33:35,370 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:33:35,371 INFO L85 PathProgramCache]: Analyzing trace with hash 357537147, now seen corresponding path program 1 times [2024-11-18 14:33:35,371 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:33:35,371 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [770127277] [2024-11-18 14:33:35,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:33:35,371 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:33:35,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:33:35,445 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:33:35,445 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:33:35,445 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [770127277] [2024-11-18 14:33:35,445 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [770127277] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:33:35,445 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:33:35,446 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 14:33:35,446 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [75357316] [2024-11-18 14:33:35,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:33:35,446 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 14:33:35,446 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:33:35,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 14:33:35,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 14:33:35,447 INFO L87 Difference]: Start difference. First operand 4624 states and 6824 transitions. Second operand has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 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) [2024-11-18 14:33:35,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:33:35,586 INFO L93 Difference]: Finished difference Result 8794 states and 13075 transitions. [2024-11-18 14:33:35,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 14:33:35,586 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 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 64 [2024-11-18 14:33:35,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:33:35,601 INFO L225 Difference]: With dead ends: 8794 [2024-11-18 14:33:35,601 INFO L226 Difference]: Without dead ends: 4193 [2024-11-18 14:33:35,608 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 [2024-11-18 14:33:35,609 INFO L432 NwaCegarLoop]: 491 mSDtfsCounter, 152 mSDsluCounter, 411 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 902 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:33:35,609 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [152 Valid, 902 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:33:35,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4193 states. [2024-11-18 14:33:35,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4193 to 3550. [2024-11-18 14:33:35,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3550 states, 3544 states have (on average 1.4923814898419865) internal successors, (5289), 3548 states have internal predecessors, (5289), 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) [2024-11-18 14:33:35,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3550 states to 3550 states and 5294 transitions. [2024-11-18 14:33:35,722 INFO L78 Accepts]: Start accepts. Automaton has 3550 states and 5294 transitions. Word has length 64 [2024-11-18 14:33:35,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:33:35,722 INFO L471 AbstractCegarLoop]: Abstraction has 3550 states and 5294 transitions. [2024-11-18 14:33:35,722 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 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) [2024-11-18 14:33:35,722 INFO L276 IsEmpty]: Start isEmpty. Operand 3550 states and 5294 transitions. [2024-11-18 14:33:35,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-11-18 14:33:35,724 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:33:35,724 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] [2024-11-18 14:33:35,724 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-18 14:33:35,724 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:33:35,725 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:33:35,725 INFO L85 PathProgramCache]: Analyzing trace with hash 550768718, now seen corresponding path program 1 times [2024-11-18 14:33:35,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:33:35,725 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1043341301] [2024-11-18 14:33:35,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:33:35,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:33:35,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:33:35,798 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:33:35,798 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:33:35,798 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1043341301] [2024-11-18 14:33:35,799 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1043341301] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:33:35,799 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:33:35,799 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 14:33:35,799 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [262365629] [2024-11-18 14:33:35,799 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:33:35,800 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 14:33:35,800 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:33:35,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 14:33:35,801 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 14:33:35,801 INFO L87 Difference]: Start difference. First operand 3550 states and 5294 transitions. Second operand has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 6 states have internal predecessors, (65), 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) [2024-11-18 14:33:36,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:33:36,202 INFO L93 Difference]: Finished difference Result 9697 states and 14366 transitions. [2024-11-18 14:33:36,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-18 14:33:36,202 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 6 states have internal predecessors, (65), 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 66 [2024-11-18 14:33:36,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:33:36,218 INFO L225 Difference]: With dead ends: 9697 [2024-11-18 14:33:36,218 INFO L226 Difference]: Without dead ends: 6372 [2024-11-18 14:33:36,225 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-11-18 14:33:36,225 INFO L432 NwaCegarLoop]: 562 mSDtfsCounter, 964 mSDsluCounter, 1881 mSDsCounter, 0 mSdLazyCounter, 384 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 964 SdHoareTripleChecker+Valid, 2443 SdHoareTripleChecker+Invalid, 391 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 384 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-18 14:33:36,226 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [964 Valid, 2443 Invalid, 391 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 384 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-18 14:33:36,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6372 states. [2024-11-18 14:33:36,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6372 to 4420. [2024-11-18 14:33:36,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4420 states, 4414 states have (on average 1.4841413683733575) internal successors, (6551), 4418 states have internal predecessors, (6551), 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) [2024-11-18 14:33:36,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4420 states to 4420 states and 6556 transitions. [2024-11-18 14:33:36,355 INFO L78 Accepts]: Start accepts. Automaton has 4420 states and 6556 transitions. Word has length 66 [2024-11-18 14:33:36,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:33:36,356 INFO L471 AbstractCegarLoop]: Abstraction has 4420 states and 6556 transitions. [2024-11-18 14:33:36,356 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 6 states have internal predecessors, (65), 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) [2024-11-18 14:33:36,356 INFO L276 IsEmpty]: Start isEmpty. Operand 4420 states and 6556 transitions. [2024-11-18 14:33:36,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-18 14:33:36,357 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:33:36,357 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] [2024-11-18 14:33:36,358 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-18 14:33:36,358 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:33:36,358 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:33:36,358 INFO L85 PathProgramCache]: Analyzing trace with hash 1157262175, now seen corresponding path program 1 times [2024-11-18 14:33:36,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:33:36,359 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1897206362] [2024-11-18 14:33:36,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:33:36,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:33:36,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:33:36,442 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:33:36,442 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:33:36,442 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1897206362] [2024-11-18 14:33:36,443 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1897206362] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:33:36,443 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:33:36,443 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-18 14:33:36,443 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [851688652] [2024-11-18 14:33:36,443 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:33:36,443 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-18 14:33:36,443 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:33:36,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-18 14:33:36,444 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-18 14:33:36,444 INFO L87 Difference]: Start difference. First operand 4420 states and 6556 transitions. Second operand has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 7 states have internal predecessors, (66), 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) [2024-11-18 14:33:36,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:33:36,696 INFO L93 Difference]: Finished difference Result 10633 states and 15634 transitions. [2024-11-18 14:33:36,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-18 14:33:36,697 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 7 states have internal predecessors, (66), 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 67 [2024-11-18 14:33:36,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:33:36,707 INFO L225 Difference]: With dead ends: 10633 [2024-11-18 14:33:36,707 INFO L226 Difference]: Without dead ends: 6438 [2024-11-18 14:33:36,712 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2024-11-18 14:33:36,712 INFO L432 NwaCegarLoop]: 547 mSDtfsCounter, 842 mSDsluCounter, 2425 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 842 SdHoareTripleChecker+Valid, 2972 SdHoareTripleChecker+Invalid, 132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 14:33:36,712 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [842 Valid, 2972 Invalid, 132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 14:33:36,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6438 states. [2024-11-18 14:33:36,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6438 to 4730. [2024-11-18 14:33:36,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4730 states, 4724 states have (on average 1.4739627434377647) internal successors, (6963), 4728 states have internal predecessors, (6963), 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) [2024-11-18 14:33:36,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4730 states to 4730 states and 6968 transitions. [2024-11-18 14:33:36,811 INFO L78 Accepts]: Start accepts. Automaton has 4730 states and 6968 transitions. Word has length 67 [2024-11-18 14:33:36,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:33:36,811 INFO L471 AbstractCegarLoop]: Abstraction has 4730 states and 6968 transitions. [2024-11-18 14:33:36,812 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 7 states have internal predecessors, (66), 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) [2024-11-18 14:33:36,812 INFO L276 IsEmpty]: Start isEmpty. Operand 4730 states and 6968 transitions. [2024-11-18 14:33:36,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-18 14:33:36,813 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:33:36,813 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, 1, 1, 1, 1, 1] [2024-11-18 14:33:36,813 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-18 14:33:36,814 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:33:36,814 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:33:36,814 INFO L85 PathProgramCache]: Analyzing trace with hash 587846131, now seen corresponding path program 1 times [2024-11-18 14:33:36,814 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:33:36,814 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1002303882] [2024-11-18 14:33:36,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:33:36,814 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:33:36,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:33:36,840 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:33:36,840 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:33:36,840 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1002303882] [2024-11-18 14:33:36,840 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1002303882] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:33:36,840 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:33:36,840 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 14:33:36,840 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1409208854] [2024-11-18 14:33:36,840 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:33:36,840 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 14:33:36,840 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:33:36,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 14:33:36,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 14:33:36,841 INFO L87 Difference]: Start difference. First operand 4730 states and 6968 transitions. Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 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) [2024-11-18 14:33:37,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:33:37,015 INFO L93 Difference]: Finished difference Result 9971 states and 14664 transitions. [2024-11-18 14:33:37,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 14:33:37,016 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 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 79 [2024-11-18 14:33:37,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:33:37,026 INFO L225 Difference]: With dead ends: 9971 [2024-11-18 14:33:37,027 INFO L226 Difference]: Without dead ends: 5262 [2024-11-18 14:33:37,032 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 [2024-11-18 14:33:37,034 INFO L432 NwaCegarLoop]: 452 mSDtfsCounter, 139 mSDsluCounter, 374 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 826 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 14:33:37,034 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [139 Valid, 826 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 14:33:37,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5262 states. [2024-11-18 14:33:37,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5262 to 5188. [2024-11-18 14:33:37,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5188 states, 5182 states have (on average 1.4698957931300656) internal successors, (7617), 5186 states have internal predecessors, (7617), 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) [2024-11-18 14:33:37,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5188 states to 5188 states and 7622 transitions. [2024-11-18 14:33:37,154 INFO L78 Accepts]: Start accepts. Automaton has 5188 states and 7622 transitions. Word has length 79 [2024-11-18 14:33:37,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:33:37,155 INFO L471 AbstractCegarLoop]: Abstraction has 5188 states and 7622 transitions. [2024-11-18 14:33:37,155 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 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) [2024-11-18 14:33:37,155 INFO L276 IsEmpty]: Start isEmpty. Operand 5188 states and 7622 transitions. [2024-11-18 14:33:37,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-11-18 14:33:37,157 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:33:37,157 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] [2024-11-18 14:33:37,157 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-18 14:33:37,157 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:33:37,157 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:33:37,157 INFO L85 PathProgramCache]: Analyzing trace with hash -880253353, now seen corresponding path program 1 times [2024-11-18 14:33:37,158 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:33:37,158 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1424179516] [2024-11-18 14:33:37,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:33:37,158 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:33:37,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:33:37,200 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:33:37,200 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:33:37,200 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1424179516] [2024-11-18 14:33:37,200 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1424179516] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:33:37,200 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:33:37,200 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 14:33:37,200 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1152690401] [2024-11-18 14:33:37,201 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:33:37,201 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 14:33:37,201 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:33:37,201 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 14:33:37,202 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 14:33:37,202 INFO L87 Difference]: Start difference. First operand 5188 states and 7622 transitions. Second operand has 4 states, 4 states have (on average 22.5) internal successors, (90), 4 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) [2024-11-18 14:33:37,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:33:37,558 INFO L93 Difference]: Finished difference Result 13874 states and 20224 transitions. [2024-11-18 14:33:37,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 14:33:37,559 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.5) internal successors, (90), 4 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 [2024-11-18 14:33:37,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:33:37,574 INFO L225 Difference]: With dead ends: 13874 [2024-11-18 14:33:37,574 INFO L226 Difference]: Without dead ends: 8585 [2024-11-18 14:33:37,583 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-18 14:33:37,583 INFO L432 NwaCegarLoop]: 575 mSDtfsCounter, 654 mSDsluCounter, 701 mSDsCounter, 0 mSdLazyCounter, 293 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 654 SdHoareTripleChecker+Valid, 1276 SdHoareTripleChecker+Invalid, 309 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 293 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-18 14:33:37,584 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [654 Valid, 1276 Invalid, 309 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 293 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-18 14:33:37,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8585 states. [2024-11-18 14:33:37,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8585 to 7651. [2024-11-18 14:33:37,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7651 states, 7645 states have (on average 1.4395029431000654) internal successors, (11005), 7649 states have internal predecessors, (11005), 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) [2024-11-18 14:33:37,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7651 states to 7651 states and 11010 transitions. [2024-11-18 14:33:37,770 INFO L78 Accepts]: Start accepts. Automaton has 7651 states and 11010 transitions. Word has length 91 [2024-11-18 14:33:37,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:33:37,770 INFO L471 AbstractCegarLoop]: Abstraction has 7651 states and 11010 transitions. [2024-11-18 14:33:37,770 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.5) internal successors, (90), 4 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) [2024-11-18 14:33:37,770 INFO L276 IsEmpty]: Start isEmpty. Operand 7651 states and 11010 transitions. [2024-11-18 14:33:37,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-11-18 14:33:37,772 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:33:37,772 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 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] [2024-11-18 14:33:37,772 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-18 14:33:37,772 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:33:37,773 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:33:37,773 INFO L85 PathProgramCache]: Analyzing trace with hash -1094322202, now seen corresponding path program 1 times [2024-11-18 14:33:37,773 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:33:37,773 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [266521298] [2024-11-18 14:33:37,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:33:37,773 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:33:37,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:33:37,814 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:33:37,814 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:33:37,814 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [266521298] [2024-11-18 14:33:37,814 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [266521298] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:33:37,814 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:33:37,815 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 14:33:37,815 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [701087429] [2024-11-18 14:33:37,815 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:33:37,815 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 14:33:37,815 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:33:37,815 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 14:33:37,816 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 14:33:37,816 INFO L87 Difference]: Start difference. First operand 7651 states and 11010 transitions. Second operand has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 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) [2024-11-18 14:33:37,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:33:37,952 INFO L93 Difference]: Finished difference Result 11033 states and 15906 transitions. [2024-11-18 14:33:37,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 14:33:37,953 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 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 99 [2024-11-18 14:33:37,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:33:37,959 INFO L225 Difference]: With dead ends: 11033 [2024-11-18 14:33:37,960 INFO L226 Difference]: Without dead ends: 3385 [2024-11-18 14:33:37,964 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 [2024-11-18 14:33:37,965 INFO L432 NwaCegarLoop]: 446 mSDtfsCounter, 343 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 343 SdHoareTripleChecker+Valid, 525 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:33:37,965 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [343 Valid, 525 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:33:37,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3385 states. [2024-11-18 14:33:38,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3385 to 3332. [2024-11-18 14:33:38,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3332 states, 3326 states have (on average 1.34996993385448) internal successors, (4490), 3330 states have internal predecessors, (4490), 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) [2024-11-18 14:33:38,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3332 states to 3332 states and 4495 transitions. [2024-11-18 14:33:38,034 INFO L78 Accepts]: Start accepts. Automaton has 3332 states and 4495 transitions. Word has length 99 [2024-11-18 14:33:38,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:33:38,034 INFO L471 AbstractCegarLoop]: Abstraction has 3332 states and 4495 transitions. [2024-11-18 14:33:38,034 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 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) [2024-11-18 14:33:38,034 INFO L276 IsEmpty]: Start isEmpty. Operand 3332 states and 4495 transitions. [2024-11-18 14:33:38,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-18 14:33:38,035 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:33:38,035 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, 1, 1, 1, 1] [2024-11-18 14:33:38,035 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-18 14:33:38,036 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:33:38,036 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:33:38,036 INFO L85 PathProgramCache]: Analyzing trace with hash -1249050813, now seen corresponding path program 1 times [2024-11-18 14:33:38,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:33:38,036 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [407504101] [2024-11-18 14:33:38,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:33:38,036 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:33:38,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:33:38,091 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:33:38,091 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:33:38,092 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [407504101] [2024-11-18 14:33:38,092 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [407504101] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:33:38,092 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:33:38,092 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 14:33:38,092 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1012483909] [2024-11-18 14:33:38,092 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:33:38,092 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 14:33:38,092 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:33:38,093 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 14:33:38,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 14:33:38,093 INFO L87 Difference]: Start difference. First operand 3332 states and 4495 transitions. Second operand has 5 states, 5 states have (on average 20.0) internal successors, (100), 5 states have internal predecessors, (100), 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) [2024-11-18 14:33:38,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:33:38,284 INFO L93 Difference]: Finished difference Result 7601 states and 10246 transitions. [2024-11-18 14:33:38,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-18 14:33:38,284 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.0) internal successors, (100), 5 states have internal predecessors, (100), 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 101 [2024-11-18 14:33:38,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:33:38,293 INFO L225 Difference]: With dead ends: 7601 [2024-11-18 14:33:38,293 INFO L226 Difference]: Without dead ends: 4446 [2024-11-18 14:33:38,297 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 [2024-11-18 14:33:38,297 INFO L432 NwaCegarLoop]: 717 mSDtfsCounter, 551 mSDsluCounter, 1677 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 551 SdHoareTripleChecker+Valid, 2394 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 14:33:38,297 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [551 Valid, 2394 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 14:33:38,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4446 states. [2024-11-18 14:33:38,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4446 to 3334. [2024-11-18 14:33:38,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3334 states, 3328 states have (on average 1.3479567307692308) internal successors, (4486), 3332 states have internal predecessors, (4486), 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) [2024-11-18 14:33:38,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3334 states to 3334 states and 4491 transitions. [2024-11-18 14:33:38,425 INFO L78 Accepts]: Start accepts. Automaton has 3334 states and 4491 transitions. Word has length 101 [2024-11-18 14:33:38,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:33:38,425 INFO L471 AbstractCegarLoop]: Abstraction has 3334 states and 4491 transitions. [2024-11-18 14:33:38,425 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.0) internal successors, (100), 5 states have internal predecessors, (100), 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) [2024-11-18 14:33:38,426 INFO L276 IsEmpty]: Start isEmpty. Operand 3334 states and 4491 transitions. [2024-11-18 14:33:38,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-18 14:33:38,427 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:33:38,427 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, 1, 1, 1, 1, 1, 1] [2024-11-18 14:33:38,427 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-18 14:33:38,427 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:33:38,427 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:33:38,428 INFO L85 PathProgramCache]: Analyzing trace with hash 2071034270, now seen corresponding path program 1 times [2024-11-18 14:33:38,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:33:38,428 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [872634852] [2024-11-18 14:33:38,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:33:38,428 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:33:38,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:33:38,504 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:33:38,504 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:33:38,504 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [872634852] [2024-11-18 14:33:38,504 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [872634852] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 14:33:38,504 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [219162334] [2024-11-18 14:33:38,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:33:38,505 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 14:33:38,505 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 14:33:38,507 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-18 14:33:38,508 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-18 14:33:38,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:33:38,602 INFO L255 TraceCheckSpWp]: Trace formula consists of 389 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-18 14:33:38,608 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 14:33:38,734 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-18 14:33:38,734 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-18 14:33:38,734 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [219162334] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:33:38,734 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-18 14:33:38,734 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2024-11-18 14:33:38,735 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1000088905] [2024-11-18 14:33:38,735 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:33:38,735 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 14:33:38,735 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:33:38,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 14:33:38,736 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 14:33:38,736 INFO L87 Difference]: Start difference. First operand 3334 states and 4491 transitions. Second operand has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 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) [2024-11-18 14:33:38,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:33:38,850 INFO L93 Difference]: Finished difference Result 3977 states and 5352 transitions. [2024-11-18 14:33:38,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 14:33:38,851 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 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 103 [2024-11-18 14:33:38,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:33:38,858 INFO L225 Difference]: With dead ends: 3977 [2024-11-18 14:33:38,858 INFO L226 Difference]: Without dead ends: 3973 [2024-11-18 14:33:38,859 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 14:33:38,860 INFO L432 NwaCegarLoop]: 437 mSDtfsCounter, 237 mSDsluCounter, 374 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 237 SdHoareTripleChecker+Valid, 811 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:33:38,860 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [237 Valid, 811 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:33:38,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3973 states. [2024-11-18 14:33:38,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3973 to 3923. [2024-11-18 14:33:38,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3923 states, 3917 states have (on average 1.34516211386265) internal successors, (5269), 3921 states have internal predecessors, (5269), 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) [2024-11-18 14:33:38,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3923 states to 3923 states and 5274 transitions. [2024-11-18 14:33:38,945 INFO L78 Accepts]: Start accepts. Automaton has 3923 states and 5274 transitions. Word has length 103 [2024-11-18 14:33:38,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:33:38,945 INFO L471 AbstractCegarLoop]: Abstraction has 3923 states and 5274 transitions. [2024-11-18 14:33:38,945 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 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) [2024-11-18 14:33:38,945 INFO L276 IsEmpty]: Start isEmpty. Operand 3923 states and 5274 transitions. [2024-11-18 14:33:38,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2024-11-18 14:33:38,947 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:33:38,947 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:33:38,961 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-18 14:33:39,148 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-11-18 14:33:39,148 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:33:39,148 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:33:39,149 INFO L85 PathProgramCache]: Analyzing trace with hash -62225411, now seen corresponding path program 1 times [2024-11-18 14:33:39,149 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:33:39,152 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [826627698] [2024-11-18 14:33:39,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:33:39,152 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:33:39,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:33:39,242 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 15 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:33:39,242 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:33:39,242 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [826627698] [2024-11-18 14:33:39,242 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [826627698] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 14:33:39,242 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2003659556] [2024-11-18 14:33:39,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:33:39,243 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 14:33:39,243 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 14:33:39,244 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-18 14:33:39,245 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-18 14:33:39,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:33:39,335 INFO L255 TraceCheckSpWp]: Trace formula consists of 537 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-18 14:33:39,338 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 14:33:39,400 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-18 14:33:39,401 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-18 14:33:39,401 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2003659556] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:33:39,401 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-18 14:33:39,401 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2024-11-18 14:33:39,401 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1751031899] [2024-11-18 14:33:39,401 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:33:39,401 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 14:33:39,401 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:33:39,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 14:33:39,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-18 14:33:39,402 INFO L87 Difference]: Start difference. First operand 3923 states and 5274 transitions. Second operand has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 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) [2024-11-18 14:33:39,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:33:39,477 INFO L93 Difference]: Finished difference Result 6990 states and 9448 transitions. [2024-11-18 14:33:39,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 14:33:39,478 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 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 159 [2024-11-18 14:33:39,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:33:39,483 INFO L225 Difference]: With dead ends: 6990 [2024-11-18 14:33:39,483 INFO L226 Difference]: Without dead ends: 3072 [2024-11-18 14:33:39,487 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 163 GetRequests, 159 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-18 14:33:39,488 INFO L432 NwaCegarLoop]: 377 mSDtfsCounter, 268 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 268 SdHoareTripleChecker+Valid, 426 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:33:39,488 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [268 Valid, 426 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:33:39,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3072 states. [2024-11-18 14:33:39,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3072 to 2850. [2024-11-18 14:33:39,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2850 states, 2844 states have (on average 1.3259493670886076) internal successors, (3771), 2848 states have internal predecessors, (3771), 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) [2024-11-18 14:33:39,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2850 states to 2850 states and 3776 transitions. [2024-11-18 14:33:39,548 INFO L78 Accepts]: Start accepts. Automaton has 2850 states and 3776 transitions. Word has length 159 [2024-11-18 14:33:39,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:33:39,548 INFO L471 AbstractCegarLoop]: Abstraction has 2850 states and 3776 transitions. [2024-11-18 14:33:39,548 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 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) [2024-11-18 14:33:39,549 INFO L276 IsEmpty]: Start isEmpty. Operand 2850 states and 3776 transitions. [2024-11-18 14:33:39,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-11-18 14:33:39,550 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:33:39,551 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:33:39,565 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-18 14:33:39,751 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-11-18 14:33:39,752 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:33:39,752 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:33:39,752 INFO L85 PathProgramCache]: Analyzing trace with hash 397670283, now seen corresponding path program 1 times [2024-11-18 14:33:39,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:33:39,752 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1931003686] [2024-11-18 14:33:39,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:33:39,752 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:33:39,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:33:39,853 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 19 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-18 14:33:39,854 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:33:39,854 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1931003686] [2024-11-18 14:33:39,854 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1931003686] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 14:33:39,854 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [289969641] [2024-11-18 14:33:39,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:33:39,854 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 14:33:39,854 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 14:33:39,856 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-18 14:33:39,856 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-18 14:33:39,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:33:39,943 INFO L255 TraceCheckSpWp]: Trace formula consists of 531 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-18 14:33:39,945 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 14:33:39,984 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-18 14:33:39,984 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-18 14:33:39,985 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [289969641] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:33:39,985 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-18 14:33:39,985 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2024-11-18 14:33:39,985 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [512420410] [2024-11-18 14:33:39,985 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:33:39,985 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 14:33:39,985 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:33:39,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 14:33:39,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-18 14:33:39,986 INFO L87 Difference]: Start difference. First operand 2850 states and 3776 transitions. Second operand has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 3 states have internal predecessors, (154), 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) [2024-11-18 14:33:40,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:33:40,070 INFO L93 Difference]: Finished difference Result 5528 states and 7365 transitions. [2024-11-18 14:33:40,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 14:33:40,071 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 3 states have internal predecessors, (154), 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 162 [2024-11-18 14:33:40,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:33:40,076 INFO L225 Difference]: With dead ends: 5528 [2024-11-18 14:33:40,077 INFO L226 Difference]: Without dead ends: 2850 [2024-11-18 14:33:40,079 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 167 GetRequests, 163 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-18 14:33:40,079 INFO L432 NwaCegarLoop]: 356 mSDtfsCounter, 278 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 278 SdHoareTripleChecker+Valid, 398 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:33:40,080 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [278 Valid, 398 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:33:40,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2850 states. [2024-11-18 14:33:40,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2850 to 2850. [2024-11-18 14:33:40,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2850 states, 2844 states have (on average 1.2921940928270041) internal successors, (3675), 2848 states have internal predecessors, (3675), 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) [2024-11-18 14:33:40,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2850 states to 2850 states and 3680 transitions. [2024-11-18 14:33:40,161 INFO L78 Accepts]: Start accepts. Automaton has 2850 states and 3680 transitions. Word has length 162 [2024-11-18 14:33:40,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:33:40,161 INFO L471 AbstractCegarLoop]: Abstraction has 2850 states and 3680 transitions. [2024-11-18 14:33:40,162 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 3 states have internal predecessors, (154), 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) [2024-11-18 14:33:40,162 INFO L276 IsEmpty]: Start isEmpty. Operand 2850 states and 3680 transitions. [2024-11-18 14:33:40,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2024-11-18 14:33:40,163 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:33:40,163 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:33:40,186 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-18 14:33:40,367 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-11-18 14:33:40,368 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:33:40,368 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:33:40,368 INFO L85 PathProgramCache]: Analyzing trace with hash -276776698, now seen corresponding path program 1 times [2024-11-18 14:33:40,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:33:40,368 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1854328849] [2024-11-18 14:33:40,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:33:40,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:33:40,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:33:40,457 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 20 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-18 14:33:40,457 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:33:40,457 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1854328849] [2024-11-18 14:33:40,457 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1854328849] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 14:33:40,457 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1162331182] [2024-11-18 14:33:40,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:33:40,457 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 14:33:40,457 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 14:33:40,459 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-18 14:33:40,460 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-18 14:33:40,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:33:40,546 INFO L255 TraceCheckSpWp]: Trace formula consists of 532 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-18 14:33:40,548 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 14:33:40,573 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-18 14:33:40,573 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-18 14:33:40,574 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1162331182] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:33:40,574 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-18 14:33:40,574 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2024-11-18 14:33:40,574 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [292381837] [2024-11-18 14:33:40,574 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:33:40,574 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 14:33:40,575 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:33:40,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 14:33:40,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-18 14:33:40,576 INFO L87 Difference]: Start difference. First operand 2850 states and 3680 transitions. Second operand has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 3 states have internal predecessors, (154), 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) [2024-11-18 14:33:40,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:33:40,834 INFO L93 Difference]: Finished difference Result 6447 states and 8490 transitions. [2024-11-18 14:33:40,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 14:33:40,834 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 3 states have internal predecessors, (154), 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 163 [2024-11-18 14:33:40,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:33:40,841 INFO L225 Difference]: With dead ends: 6447 [2024-11-18 14:33:40,841 INFO L226 Difference]: Without dead ends: 3769 [2024-11-18 14:33:40,843 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 168 GetRequests, 164 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-18 14:33:40,844 INFO L432 NwaCegarLoop]: 451 mSDtfsCounter, 209 mSDsluCounter, 223 mSDsCounter, 0 mSdLazyCounter, 198 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 209 SdHoareTripleChecker+Valid, 674 SdHoareTripleChecker+Invalid, 258 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 198 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-18 14:33:40,844 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [209 Valid, 674 Invalid, 258 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 198 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-18 14:33:40,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3769 states. [2024-11-18 14:33:40,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3769 to 3681. [2024-11-18 14:33:40,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3681 states, 3675 states have (on average 1.2612244897959184) internal successors, (4635), 3679 states have internal predecessors, (4635), 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) [2024-11-18 14:33:40,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3681 states to 3681 states and 4640 transitions. [2024-11-18 14:33:40,918 INFO L78 Accepts]: Start accepts. Automaton has 3681 states and 4640 transitions. Word has length 163 [2024-11-18 14:33:40,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:33:40,919 INFO L471 AbstractCegarLoop]: Abstraction has 3681 states and 4640 transitions. [2024-11-18 14:33:40,919 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 3 states have internal predecessors, (154), 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) [2024-11-18 14:33:40,919 INFO L276 IsEmpty]: Start isEmpty. Operand 3681 states and 4640 transitions. [2024-11-18 14:33:40,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2024-11-18 14:33:40,921 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:33:40,921 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, 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] [2024-11-18 14:33:40,935 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-18 14:33:41,121 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 14:33:41,122 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:33:41,122 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:33:41,122 INFO L85 PathProgramCache]: Analyzing trace with hash -1158970864, now seen corresponding path program 1 times [2024-11-18 14:33:41,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:33:41,123 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1762215390] [2024-11-18 14:33:41,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:33:41,123 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:33:41,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:33:41,329 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 5 proven. 44 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-18 14:33:41,330 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:33:41,330 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1762215390] [2024-11-18 14:33:41,330 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1762215390] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 14:33:41,330 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1138829602] [2024-11-18 14:33:41,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:33:41,331 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 14:33:41,331 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 14:33:41,333 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-18 14:33:41,334 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-18 14:33:41,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:33:41,440 INFO L255 TraceCheckSpWp]: Trace formula consists of 536 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-18 14:33:41,443 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 14:33:41,581 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 5 proven. 44 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-18 14:33:41,581 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-18 14:33:41,715 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 5 proven. 44 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-18 14:33:41,716 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1138829602] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-18 14:33:41,716 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-18 14:33:41,716 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 9 [2024-11-18 14:33:41,716 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1920338454] [2024-11-18 14:33:41,716 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-18 14:33:41,717 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-18 14:33:41,717 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:33:41,717 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-18 14:33:41,717 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-18 14:33:41,718 INFO L87 Difference]: Start difference. First operand 3681 states and 4640 transitions. Second operand has 9 states, 9 states have (on average 17.88888888888889) internal successors, (161), 9 states have internal predecessors, (161), 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) [2024-11-18 14:33:42,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:33:42,082 INFO L93 Difference]: Finished difference Result 9893 states and 12488 transitions. [2024-11-18 14:33:42,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-18 14:33:42,082 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 17.88888888888889) internal successors, (161), 9 states have internal predecessors, (161), 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 165 [2024-11-18 14:33:42,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:33:42,094 INFO L225 Difference]: With dead ends: 9893 [2024-11-18 14:33:42,094 INFO L226 Difference]: Without dead ends: 6384 [2024-11-18 14:33:42,099 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 347 GetRequests, 331 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=64, Invalid=242, Unknown=0, NotChecked=0, Total=306 [2024-11-18 14:33:42,100 INFO L432 NwaCegarLoop]: 554 mSDtfsCounter, 927 mSDsluCounter, 3359 mSDsCounter, 0 mSdLazyCounter, 294 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 927 SdHoareTripleChecker+Valid, 3913 SdHoareTripleChecker+Invalid, 316 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 294 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-18 14:33:42,100 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [927 Valid, 3913 Invalid, 316 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 294 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-18 14:33:42,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6384 states. [2024-11-18 14:33:42,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6384 to 5218. [2024-11-18 14:33:42,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5218 states, 5212 states have (on average 1.266308518802763) internal successors, (6600), 5216 states have internal predecessors, (6600), 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) [2024-11-18 14:33:42,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5218 states to 5218 states and 6605 transitions. [2024-11-18 14:33:42,284 INFO L78 Accepts]: Start accepts. Automaton has 5218 states and 6605 transitions. Word has length 165 [2024-11-18 14:33:42,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:33:42,285 INFO L471 AbstractCegarLoop]: Abstraction has 5218 states and 6605 transitions. [2024-11-18 14:33:42,285 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 17.88888888888889) internal successors, (161), 9 states have internal predecessors, (161), 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) [2024-11-18 14:33:42,285 INFO L276 IsEmpty]: Start isEmpty. Operand 5218 states and 6605 transitions. [2024-11-18 14:33:42,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 266 [2024-11-18 14:33:42,288 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:33:42,288 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:33:42,303 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-18 14:33:42,489 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 14:33:42,490 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:33:42,490 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:33:42,490 INFO L85 PathProgramCache]: Analyzing trace with hash -1576222772, now seen corresponding path program 1 times [2024-11-18 14:33:42,490 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:33:42,490 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1721320880] [2024-11-18 14:33:42,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:33:42,491 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:33:42,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:33:42,904 INFO L134 CoverageAnalysis]: Checked inductivity of 215 backedges. 10 proven. 196 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-18 14:33:42,904 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:33:42,904 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1721320880] [2024-11-18 14:33:42,905 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1721320880] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 14:33:42,905 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1898563230] [2024-11-18 14:33:42,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:33:42,905 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 14:33:42,905 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 14:33:42,906 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-18 14:33:42,907 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-18 14:33:43,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:33:43,033 INFO L255 TraceCheckSpWp]: Trace formula consists of 794 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-11-18 14:33:43,036 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 14:33:43,238 INFO L134 CoverageAnalysis]: Checked inductivity of 215 backedges. 10 proven. 196 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-18 14:33:43,238 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-18 14:33:43,445 INFO L134 CoverageAnalysis]: Checked inductivity of 215 backedges. 10 proven. 196 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-18 14:33:43,445 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1898563230] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-18 14:33:43,445 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-18 14:33:43,445 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 11 [2024-11-18 14:33:43,445 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [383361759] [2024-11-18 14:33:43,445 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-18 14:33:43,446 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-18 14:33:43,446 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:33:43,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-18 14:33:43,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2024-11-18 14:33:43,447 INFO L87 Difference]: Start difference. First operand 5218 states and 6605 transitions. Second operand has 11 states, 11 states have (on average 23.545454545454547) internal successors, (259), 11 states have internal predecessors, (259), 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) [2024-11-18 14:33:44,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:33:44,053 INFO L93 Difference]: Finished difference Result 13562 states and 17104 transitions. [2024-11-18 14:33:44,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-18 14:33:44,053 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 23.545454545454547) internal successors, (259), 11 states have internal predecessors, (259), 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 265 [2024-11-18 14:33:44,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:33:44,067 INFO L225 Difference]: With dead ends: 13562 [2024-11-18 14:33:44,067 INFO L226 Difference]: Without dead ends: 8516 [2024-11-18 14:33:44,071 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 552 GetRequests, 533 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=67, Invalid=353, Unknown=0, NotChecked=0, Total=420 [2024-11-18 14:33:44,072 INFO L432 NwaCegarLoop]: 1038 mSDtfsCounter, 1555 mSDsluCounter, 7537 mSDsCounter, 0 mSdLazyCounter, 655 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1555 SdHoareTripleChecker+Valid, 8575 SdHoareTripleChecker+Invalid, 695 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 655 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-18 14:33:44,072 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1555 Valid, 8575 Invalid, 695 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 655 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-18 14:33:44,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8516 states. [2024-11-18 14:33:44,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8516 to 6629. [2024-11-18 14:33:44,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6629 states, 6623 states have (on average 1.2675524686697872) internal successors, (8395), 6627 states have internal predecessors, (8395), 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) [2024-11-18 14:33:44,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6629 states to 6629 states and 8400 transitions. [2024-11-18 14:33:44,239 INFO L78 Accepts]: Start accepts. Automaton has 6629 states and 8400 transitions. Word has length 265 [2024-11-18 14:33:44,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:33:44,239 INFO L471 AbstractCegarLoop]: Abstraction has 6629 states and 8400 transitions. [2024-11-18 14:33:44,239 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 23.545454545454547) internal successors, (259), 11 states have internal predecessors, (259), 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) [2024-11-18 14:33:44,239 INFO L276 IsEmpty]: Start isEmpty. Operand 6629 states and 8400 transitions. [2024-11-18 14:33:44,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 367 [2024-11-18 14:33:44,243 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:33:44,243 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, 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, 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] [2024-11-18 14:33:44,256 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-18 14:33:44,444 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 14:33:44,444 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:33:44,445 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:33:44,445 INFO L85 PathProgramCache]: Analyzing trace with hash -1321811141, now seen corresponding path program 1 times [2024-11-18 14:33:44,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:33:44,445 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [980731355] [2024-11-18 14:33:44,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:33:44,445 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:33:44,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:33:44,909 INFO L134 CoverageAnalysis]: Checked inductivity of 485 backedges. 15 proven. 457 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-11-18 14:33:44,909 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:33:44,909 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [980731355] [2024-11-18 14:33:44,909 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [980731355] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 14:33:44,909 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1261973758] [2024-11-18 14:33:44,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:33:44,910 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 14:33:44,910 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 14:33:44,911 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-18 14:33:44,912 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-18 14:33:45,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:33:45,056 INFO L255 TraceCheckSpWp]: Trace formula consists of 1053 conjuncts, 31 conjuncts are in the unsatisfiable core [2024-11-18 14:33:45,060 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 14:33:45,341 INFO L134 CoverageAnalysis]: Checked inductivity of 485 backedges. 15 proven. 457 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-11-18 14:33:45,341 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-18 14:33:45,635 INFO L134 CoverageAnalysis]: Checked inductivity of 485 backedges. 15 proven. 457 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-11-18 14:33:45,635 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1261973758] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-18 14:33:45,635 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-18 14:33:45,636 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 13 [2024-11-18 14:33:45,636 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [476934396] [2024-11-18 14:33:45,636 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-18 14:33:45,637 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-18 14:33:45,637 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:33:45,637 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-18 14:33:45,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2024-11-18 14:33:45,638 INFO L87 Difference]: Start difference. First operand 6629 states and 8400 transitions. Second operand has 13 states, 13 states have (on average 27.53846153846154) internal successors, (358), 13 states have internal predecessors, (358), 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) [2024-11-18 14:33:46,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:33:46,454 INFO L93 Difference]: Finished difference Result 17112 states and 21570 transitions. [2024-11-18 14:33:46,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-18 14:33:46,454 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 27.53846153846154) internal successors, (358), 13 states have internal predecessors, (358), 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 366 [2024-11-18 14:33:46,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:33:46,472 INFO L225 Difference]: With dead ends: 17112 [2024-11-18 14:33:46,473 INFO L226 Difference]: Without dead ends: 10655 [2024-11-18 14:33:46,476 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 760 GetRequests, 735 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 87 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=87, Invalid=615, Unknown=0, NotChecked=0, Total=702 [2024-11-18 14:33:46,477 INFO L432 NwaCegarLoop]: 1556 mSDtfsCounter, 2295 mSDsluCounter, 14350 mSDsCounter, 0 mSdLazyCounter, 1195 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2295 SdHoareTripleChecker+Valid, 15906 SdHoareTripleChecker+Invalid, 1254 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 1195 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-18 14:33:46,477 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2295 Valid, 15906 Invalid, 1254 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 1195 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-18 14:33:46,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10655 states. [2024-11-18 14:33:46,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10655 to 8042. [2024-11-18 14:33:46,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8042 states, 8036 states have (on average 1.2682926829268293) internal successors, (10192), 8040 states have internal predecessors, (10192), 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) [2024-11-18 14:33:46,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8042 states to 8042 states and 10197 transitions. [2024-11-18 14:33:46,652 INFO L78 Accepts]: Start accepts. Automaton has 8042 states and 10197 transitions. Word has length 366 [2024-11-18 14:33:46,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:33:46,653 INFO L471 AbstractCegarLoop]: Abstraction has 8042 states and 10197 transitions. [2024-11-18 14:33:46,653 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 27.53846153846154) internal successors, (358), 13 states have internal predecessors, (358), 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) [2024-11-18 14:33:46,654 INFO L276 IsEmpty]: Start isEmpty. Operand 8042 states and 10197 transitions. [2024-11-18 14:33:46,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 469 [2024-11-18 14:33:46,659 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:33:46,660 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2024-11-18 14:33:46,674 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-18 14:33:46,860 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 14:33:46,861 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:33:46,862 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:33:46,862 INFO L85 PathProgramCache]: Analyzing trace with hash 1341756700, now seen corresponding path program 1 times [2024-11-18 14:33:46,862 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:33:46,862 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [780250230] [2024-11-18 14:33:46,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:33:46,862 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:33:46,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:33:47,268 INFO L134 CoverageAnalysis]: Checked inductivity of 865 backedges. 543 proven. 305 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-11-18 14:33:47,268 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:33:47,268 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [780250230] [2024-11-18 14:33:47,268 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [780250230] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 14:33:47,269 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [715206667] [2024-11-18 14:33:47,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:33:47,269 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 14:33:47,269 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 14:33:47,271 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-18 14:33:47,273 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-18 14:33:47,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:33:47,472 INFO L255 TraceCheckSpWp]: Trace formula consists of 1313 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-18 14:33:47,479 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 14:33:47,881 INFO L134 CoverageAnalysis]: Checked inductivity of 865 backedges. 848 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-11-18 14:33:47,883 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-18 14:33:47,883 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [715206667] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:33:47,883 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-18 14:33:47,883 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [11] total 13 [2024-11-18 14:33:47,884 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1250329217] [2024-11-18 14:33:47,884 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:33:47,885 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-18 14:33:47,885 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:33:47,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-18 14:33:47,886 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2024-11-18 14:33:47,887 INFO L87 Difference]: Start difference. First operand 8042 states and 10197 transitions. Second operand has 11 states, 11 states have (on average 41.63636363636363) internal successors, (458), 11 states have internal predecessors, (458), 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) [2024-11-18 14:33:48,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:33:48,512 INFO L93 Difference]: Finished difference Result 18051 states and 22784 transitions. [2024-11-18 14:33:48,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-18 14:33:48,513 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 41.63636363636363) internal successors, (458), 11 states have internal predecessors, (458), 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 468 [2024-11-18 14:33:48,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:33:48,534 INFO L225 Difference]: With dead ends: 18051 [2024-11-18 14:33:48,534 INFO L226 Difference]: Without dead ends: 10178 [2024-11-18 14:33:48,544 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 495 GetRequests, 471 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 101 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=198, Invalid=452, Unknown=0, NotChecked=0, Total=650 [2024-11-18 14:33:48,545 INFO L432 NwaCegarLoop]: 1494 mSDtfsCounter, 2133 mSDsluCounter, 4248 mSDsCounter, 0 mSdLazyCounter, 379 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2133 SdHoareTripleChecker+Valid, 5742 SdHoareTripleChecker+Invalid, 435 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 379 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-18 14:33:48,545 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2133 Valid, 5742 Invalid, 435 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 379 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-18 14:33:48,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10178 states. [2024-11-18 14:33:48,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10178 to 7911. [2024-11-18 14:33:48,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7911 states, 7905 states have (on average 1.267046173308033) internal successors, (10016), 7909 states have internal predecessors, (10016), 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) [2024-11-18 14:33:48,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7911 states to 7911 states and 10021 transitions. [2024-11-18 14:33:48,842 INFO L78 Accepts]: Start accepts. Automaton has 7911 states and 10021 transitions. Word has length 468 [2024-11-18 14:33:48,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:33:48,842 INFO L471 AbstractCegarLoop]: Abstraction has 7911 states and 10021 transitions. [2024-11-18 14:33:48,843 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 41.63636363636363) internal successors, (458), 11 states have internal predecessors, (458), 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) [2024-11-18 14:33:48,843 INFO L276 IsEmpty]: Start isEmpty. Operand 7911 states and 10021 transitions. [2024-11-18 14:33:48,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 470 [2024-11-18 14:33:48,846 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:33:48,846 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, 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, 1, 1] [2024-11-18 14:33:48,865 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-18 14:33:49,046 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2024-11-18 14:33:49,047 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:33:49,047 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:33:49,048 INFO L85 PathProgramCache]: Analyzing trace with hash 282578174, now seen corresponding path program 1 times [2024-11-18 14:33:49,048 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:33:49,048 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [83186453] [2024-11-18 14:33:49,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:33:49,048 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:33:49,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:33:49,139 INFO L134 CoverageAnalysis]: Checked inductivity of 761 backedges. 88 proven. 0 refuted. 0 times theorem prover too weak. 673 trivial. 0 not checked. [2024-11-18 14:33:49,139 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:33:49,139 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [83186453] [2024-11-18 14:33:49,139 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [83186453] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:33:49,139 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:33:49,139 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 14:33:49,140 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [564387652] [2024-11-18 14:33:49,140 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:33:49,140 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 14:33:49,140 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:33:49,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 14:33:49,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 14:33:49,141 INFO L87 Difference]: Start difference. First operand 7911 states and 10021 transitions. Second operand has 3 states, 3 states have (on average 58.333333333333336) internal successors, (175), 3 states have internal predecessors, (175), 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) [2024-11-18 14:33:49,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:33:49,268 INFO L93 Difference]: Finished difference Result 9564 states and 11908 transitions. [2024-11-18 14:33:49,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 14:33:49,268 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 58.333333333333336) internal successors, (175), 3 states have internal predecessors, (175), 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 469 [2024-11-18 14:33:49,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:33:49,274 INFO L225 Difference]: With dead ends: 9564 [2024-11-18 14:33:49,274 INFO L226 Difference]: Without dead ends: 1706 [2024-11-18 14:33:49,279 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 [2024-11-18 14:33:49,280 INFO L432 NwaCegarLoop]: 287 mSDtfsCounter, 138 mSDsluCounter, 117 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 404 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 14:33:49,280 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [138 Valid, 404 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 14:33:49,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1706 states. [2024-11-18 14:33:49,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1706 to 1703. [2024-11-18 14:33:49,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1703 states, 1699 states have (on average 1.100058858151854) internal successors, (1869), 1701 states have internal predecessors, (1869), 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) [2024-11-18 14:33:49,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1703 states to 1703 states and 1872 transitions. [2024-11-18 14:33:49,332 INFO L78 Accepts]: Start accepts. Automaton has 1703 states and 1872 transitions. Word has length 469 [2024-11-18 14:33:49,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:33:49,332 INFO L471 AbstractCegarLoop]: Abstraction has 1703 states and 1872 transitions. [2024-11-18 14:33:49,333 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.333333333333336) internal successors, (175), 3 states have internal predecessors, (175), 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) [2024-11-18 14:33:49,333 INFO L276 IsEmpty]: Start isEmpty. Operand 1703 states and 1872 transitions. [2024-11-18 14:33:49,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 471 [2024-11-18 14:33:49,335 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:33:49,336 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, 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, 1, 1, 1, 1] [2024-11-18 14:33:49,336 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-18 14:33:49,336 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:33:49,337 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:33:49,337 INFO L85 PathProgramCache]: Analyzing trace with hash -1243077896, now seen corresponding path program 1 times [2024-11-18 14:33:49,337 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:33:49,337 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1243602997] [2024-11-18 14:33:49,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:33:49,337 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:33:49,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:33:49,515 INFO L134 CoverageAnalysis]: Checked inductivity of 761 backedges. 88 proven. 0 refuted. 0 times theorem prover too weak. 673 trivial. 0 not checked. [2024-11-18 14:33:49,516 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:33:49,516 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1243602997] [2024-11-18 14:33:49,516 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1243602997] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:33:49,516 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:33:49,516 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-18 14:33:49,516 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [269089505] [2024-11-18 14:33:49,517 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:33:49,517 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-18 14:33:49,517 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:33:49,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-18 14:33:49,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-18 14:33:49,518 INFO L87 Difference]: Start difference. First operand 1703 states and 1872 transitions. Second operand has 7 states, 7 states have (on average 25.142857142857142) internal successors, (176), 7 states have internal predecessors, (176), 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) [2024-11-18 14:33:49,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:33:49,614 INFO L93 Difference]: Finished difference Result 2427 states and 2688 transitions. [2024-11-18 14:33:49,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-18 14:33:49,615 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 25.142857142857142) internal successors, (176), 7 states have internal predecessors, (176), 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 470 [2024-11-18 14:33:49,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:33:49,624 INFO L225 Difference]: With dead ends: 2427 [2024-11-18 14:33:49,624 INFO L226 Difference]: Without dead ends: 1710 [2024-11-18 14:33:49,624 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 [2024-11-18 14:33:49,625 INFO L432 NwaCegarLoop]: 277 mSDtfsCounter, 231 mSDsluCounter, 1236 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 231 SdHoareTripleChecker+Valid, 1513 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:33:49,625 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [231 Valid, 1513 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:33:49,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1710 states. [2024-11-18 14:33:49,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1710 to 1697. [2024-11-18 14:33:49,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1697 states, 1693 states have (on average 1.0956881275841701) internal successors, (1855), 1695 states have internal predecessors, (1855), 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) [2024-11-18 14:33:49,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1697 states to 1697 states and 1858 transitions. [2024-11-18 14:33:49,667 INFO L78 Accepts]: Start accepts. Automaton has 1697 states and 1858 transitions. Word has length 470 [2024-11-18 14:33:49,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:33:49,668 INFO L471 AbstractCegarLoop]: Abstraction has 1697 states and 1858 transitions. [2024-11-18 14:33:49,668 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 25.142857142857142) internal successors, (176), 7 states have internal predecessors, (176), 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) [2024-11-18 14:33:49,668 INFO L276 IsEmpty]: Start isEmpty. Operand 1697 states and 1858 transitions. [2024-11-18 14:33:49,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 472 [2024-11-18 14:33:49,670 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:33:49,670 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, 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] [2024-11-18 14:33:49,670 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-18 14:33:49,670 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:33:49,671 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:33:49,671 INFO L85 PathProgramCache]: Analyzing trace with hash 1382591989, now seen corresponding path program 1 times [2024-11-18 14:33:49,671 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:33:49,671 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [394272537] [2024-11-18 14:33:49,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:33:49,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:33:49,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:33:49,785 INFO L134 CoverageAnalysis]: Checked inductivity of 775 backedges. 102 proven. 0 refuted. 0 times theorem prover too weak. 673 trivial. 0 not checked. [2024-11-18 14:33:49,786 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:33:49,786 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [394272537] [2024-11-18 14:33:49,786 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [394272537] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:33:49,786 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:33:49,786 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 14:33:49,786 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1841209144] [2024-11-18 14:33:49,786 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:33:49,786 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 14:33:49,786 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:33:49,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 14:33:49,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 14:33:49,787 INFO L87 Difference]: Start difference. First operand 1697 states and 1858 transitions. Second operand has 5 states, 5 states have (on average 35.4) internal successors, (177), 5 states have internal predecessors, (177), 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) [2024-11-18 14:33:49,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:33:49,850 INFO L93 Difference]: Finished difference Result 2379 states and 2603 transitions. [2024-11-18 14:33:49,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-18 14:33:49,850 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 35.4) internal successors, (177), 5 states have internal predecessors, (177), 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 471 [2024-11-18 14:33:49,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:33:49,854 INFO L225 Difference]: With dead ends: 2379 [2024-11-18 14:33:49,855 INFO L226 Difference]: Without dead ends: 1660 [2024-11-18 14:33:49,855 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 [2024-11-18 14:33:49,856 INFO L432 NwaCegarLoop]: 269 mSDtfsCounter, 186 mSDsluCounter, 604 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 186 SdHoareTripleChecker+Valid, 873 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:33:49,857 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [186 Valid, 873 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:33:49,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1660 states. [2024-11-18 14:33:49,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1660 to 1648. [2024-11-18 14:33:49,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1648 states, 1645 states have (on average 1.0693009118541033) internal successors, (1759), 1646 states have internal predecessors, (1759), 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) [2024-11-18 14:33:49,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1648 states to 1648 states and 1761 transitions. [2024-11-18 14:33:49,925 INFO L78 Accepts]: Start accepts. Automaton has 1648 states and 1761 transitions. Word has length 471 [2024-11-18 14:33:49,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:33:49,925 INFO L471 AbstractCegarLoop]: Abstraction has 1648 states and 1761 transitions. [2024-11-18 14:33:49,925 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 35.4) internal successors, (177), 5 states have internal predecessors, (177), 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) [2024-11-18 14:33:49,925 INFO L276 IsEmpty]: Start isEmpty. Operand 1648 states and 1761 transitions. [2024-11-18 14:33:49,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 529 [2024-11-18 14:33:49,928 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:33:49,928 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, 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, 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, 1, 1, 1, 1, 1, 1] [2024-11-18 14:33:49,928 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-18 14:33:49,928 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:33:49,929 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:33:49,929 INFO L85 PathProgramCache]: Analyzing trace with hash 281790686, now seen corresponding path program 1 times [2024-11-18 14:33:49,929 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:33:49,929 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [201223129] [2024-11-18 14:33:49,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:33:49,930 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:33:49,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:33:51,046 INFO L134 CoverageAnalysis]: Checked inductivity of 870 backedges. 94 proven. 316 refuted. 0 times theorem prover too weak. 460 trivial. 0 not checked. [2024-11-18 14:33:51,046 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:33:51,046 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [201223129] [2024-11-18 14:33:51,047 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [201223129] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 14:33:51,047 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [337167064] [2024-11-18 14:33:51,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:33:51,047 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 14:33:51,047 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 14:33:51,048 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-18 14:33:51,050 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-18 14:33:51,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:33:51,241 INFO L255 TraceCheckSpWp]: Trace formula consists of 1448 conjuncts, 33 conjuncts are in the unsatisfiable core [2024-11-18 14:33:51,246 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 14:33:51,854 INFO L134 CoverageAnalysis]: Checked inductivity of 870 backedges. 96 proven. 263 refuted. 0 times theorem prover too weak. 511 trivial. 0 not checked. [2024-11-18 14:33:51,854 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-18 14:33:52,343 INFO L134 CoverageAnalysis]: Checked inductivity of 870 backedges. 25 proven. 334 refuted. 0 times theorem prover too weak. 511 trivial. 0 not checked. [2024-11-18 14:33:52,343 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [337167064] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-18 14:33:52,347 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-18 14:33:52,347 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 17, 17] total 30 [2024-11-18 14:33:52,347 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1140250583] [2024-11-18 14:33:52,347 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-18 14:33:52,348 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2024-11-18 14:33:52,348 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:33:52,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2024-11-18 14:33:52,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=792, Unknown=0, NotChecked=0, Total=870 [2024-11-18 14:33:52,349 INFO L87 Difference]: Start difference. First operand 1648 states and 1761 transitions. Second operand has 30 states, 30 states have (on average 13.9) internal successors, (417), 30 states have internal predecessors, (417), 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) [2024-11-18 14:33:52,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:33:52,770 INFO L93 Difference]: Finished difference Result 1663 states and 1775 transitions. [2024-11-18 14:33:52,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-18 14:33:52,771 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 13.9) internal successors, (417), 30 states have internal predecessors, (417), 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 528 [2024-11-18 14:33:52,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:33:52,775 INFO L225 Difference]: With dead ends: 1663 [2024-11-18 14:33:52,775 INFO L226 Difference]: Without dead ends: 1660 [2024-11-18 14:33:52,776 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1089 GetRequests, 1047 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 390 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=191, Invalid=1701, Unknown=0, NotChecked=0, Total=1892 [2024-11-18 14:33:52,776 INFO L432 NwaCegarLoop]: 397 mSDtfsCounter, 753 mSDsluCounter, 7084 mSDsCounter, 0 mSdLazyCounter, 598 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 753 SdHoareTripleChecker+Valid, 7481 SdHoareTripleChecker+Invalid, 600 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 598 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-18 14:33:52,776 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [753 Valid, 7481 Invalid, 600 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 598 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-18 14:33:52,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1660 states. [2024-11-18 14:33:52,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1660 to 1648. [2024-11-18 14:33:52,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1648 states, 1645 states have (on average 1.068693009118541) internal successors, (1758), 1646 states have internal predecessors, (1758), 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) [2024-11-18 14:33:52,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1648 states to 1648 states and 1760 transitions. [2024-11-18 14:33:52,818 INFO L78 Accepts]: Start accepts. Automaton has 1648 states and 1760 transitions. Word has length 528 [2024-11-18 14:33:52,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:33:52,819 INFO L471 AbstractCegarLoop]: Abstraction has 1648 states and 1760 transitions. [2024-11-18 14:33:52,819 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 13.9) internal successors, (417), 30 states have internal predecessors, (417), 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) [2024-11-18 14:33:52,819 INFO L276 IsEmpty]: Start isEmpty. Operand 1648 states and 1760 transitions. [2024-11-18 14:33:52,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 578 [2024-11-18 14:33:52,822 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:33:52,822 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:33:52,836 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-18 14:33:53,025 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2024-11-18 14:33:53,026 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:33:53,026 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:33:53,027 INFO L85 PathProgramCache]: Analyzing trace with hash 1226769046, now seen corresponding path program 1 times [2024-11-18 14:33:53,027 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:33:53,027 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1972535814] [2024-11-18 14:33:53,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:33:53,027 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:33:53,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:33:53,352 INFO L134 CoverageAnalysis]: Checked inductivity of 1006 backedges. 281 proven. 48 refuted. 0 times theorem prover too weak. 677 trivial. 0 not checked. [2024-11-18 14:33:53,352 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:33:53,353 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1972535814] [2024-11-18 14:33:53,353 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1972535814] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 14:33:53,353 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2112922526] [2024-11-18 14:33:53,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:33:53,353 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 14:33:53,353 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 14:33:53,354 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-18 14:33:53,355 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-18 14:33:53,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:33:53,559 INFO L255 TraceCheckSpWp]: Trace formula consists of 1574 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-18 14:33:53,565 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 14:33:53,702 INFO L134 CoverageAnalysis]: Checked inductivity of 1006 backedges. 281 proven. 48 refuted. 0 times theorem prover too weak. 677 trivial. 0 not checked. [2024-11-18 14:33:53,702 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-18 14:33:53,867 INFO L134 CoverageAnalysis]: Checked inductivity of 1006 backedges. 281 proven. 48 refuted. 0 times theorem prover too weak. 677 trivial. 0 not checked. [2024-11-18 14:33:53,868 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2112922526] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-18 14:33:53,868 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-18 14:33:53,868 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 9 [2024-11-18 14:33:53,868 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [782068129] [2024-11-18 14:33:53,868 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-18 14:33:53,869 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-18 14:33:53,869 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:33:53,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-18 14:33:53,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-18 14:33:53,870 INFO L87 Difference]: Start difference. First operand 1648 states and 1760 transitions. Second operand has 9 states, 9 states have (on average 31.22222222222222) internal successors, (281), 9 states have internal predecessors, (281), 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) [2024-11-18 14:33:54,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:33:54,077 INFO L93 Difference]: Finished difference Result 2144 states and 2294 transitions. [2024-11-18 14:33:54,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-18 14:33:54,077 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 31.22222222222222) internal successors, (281), 9 states have internal predecessors, (281), 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 577 [2024-11-18 14:33:54,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:33:54,083 INFO L225 Difference]: With dead ends: 2144 [2024-11-18 14:33:54,083 INFO L226 Difference]: Without dead ends: 1656 [2024-11-18 14:33:54,084 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1171 GetRequests, 1158 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=163, Unknown=0, NotChecked=0, Total=210 [2024-11-18 14:33:54,084 INFO L432 NwaCegarLoop]: 367 mSDtfsCounter, 407 mSDsluCounter, 2159 mSDsCounter, 0 mSdLazyCounter, 203 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 407 SdHoareTripleChecker+Valid, 2526 SdHoareTripleChecker+Invalid, 209 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 203 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 14:33:54,085 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [407 Valid, 2526 Invalid, 209 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 203 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 14:33:54,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1656 states. [2024-11-18 14:33:54,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1656 to 1644. [2024-11-18 14:33:54,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1644 states, 1641 states have (on average 1.0639853747714807) internal successors, (1746), 1642 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) [2024-11-18 14:33:54,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1644 states to 1644 states and 1748 transitions. [2024-11-18 14:33:54,163 INFO L78 Accepts]: Start accepts. Automaton has 1644 states and 1748 transitions. Word has length 577 [2024-11-18 14:33:54,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:33:54,164 INFO L471 AbstractCegarLoop]: Abstraction has 1644 states and 1748 transitions. [2024-11-18 14:33:54,164 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 31.22222222222222) internal successors, (281), 9 states have internal predecessors, (281), 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) [2024-11-18 14:33:54,164 INFO L276 IsEmpty]: Start isEmpty. Operand 1644 states and 1748 transitions. [2024-11-18 14:33:54,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 637 [2024-11-18 14:33:54,170 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:33:54,171 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, 6, 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, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:33:54,190 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-11-18 14:33:54,371 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2024-11-18 14:33:54,372 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:33:54,372 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:33:54,372 INFO L85 PathProgramCache]: Analyzing trace with hash 381551868, now seen corresponding path program 1 times [2024-11-18 14:33:54,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:33:54,372 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1669846695] [2024-11-18 14:33:54,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:33:54,373 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:33:54,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:33:55,257 INFO L134 CoverageAnalysis]: Checked inductivity of 1180 backedges. 195 proven. 741 refuted. 0 times theorem prover too weak. 244 trivial. 0 not checked. [2024-11-18 14:33:55,257 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:33:55,257 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1669846695] [2024-11-18 14:33:55,258 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1669846695] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 14:33:55,258 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1171305690] [2024-11-18 14:33:55,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:33:55,258 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 14:33:55,258 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 14:33:55,260 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-18 14:33:55,261 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-18 14:33:55,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:33:55,477 INFO L255 TraceCheckSpWp]: Trace formula consists of 1713 conjuncts, 45 conjuncts are in the unsatisfiable core [2024-11-18 14:33:55,485 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 14:33:56,316 INFO L134 CoverageAnalysis]: Checked inductivity of 1180 backedges. 243 proven. 693 refuted. 0 times theorem prover too weak. 244 trivial. 0 not checked. [2024-11-18 14:33:56,316 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-18 14:33:56,806 INFO L134 CoverageAnalysis]: Checked inductivity of 1180 backedges. 30 proven. 906 refuted. 0 times theorem prover too weak. 244 trivial. 0 not checked. [2024-11-18 14:33:56,806 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1171305690] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-18 14:33:56,806 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-18 14:33:56,806 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 21, 21] total 32 [2024-11-18 14:33:56,806 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1026124715] [2024-11-18 14:33:56,806 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-18 14:33:56,807 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2024-11-18 14:33:56,807 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:33:56,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2024-11-18 14:33:56,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=912, Unknown=0, NotChecked=0, Total=992 [2024-11-18 14:33:56,809 INFO L87 Difference]: Start difference. First operand 1644 states and 1748 transitions. Second operand has 32 states, 32 states have (on average 21.5) internal successors, (688), 32 states have internal predecessors, (688), 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) [2024-11-18 14:33:57,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:33:57,348 INFO L93 Difference]: Finished difference Result 1659 states and 1762 transitions. [2024-11-18 14:33:57,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2024-11-18 14:33:57,351 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 32 states have (on average 21.5) internal successors, (688), 32 states have internal predecessors, (688), 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 636 [2024-11-18 14:33:57,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:33:57,356 INFO L225 Difference]: With dead ends: 1659 [2024-11-18 14:33:57,356 INFO L226 Difference]: Without dead ends: 1656 [2024-11-18 14:33:57,357 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1314 GetRequests, 1265 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 432 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=231, Invalid=2319, Unknown=0, NotChecked=0, Total=2550 [2024-11-18 14:33:57,359 INFO L432 NwaCegarLoop]: 605 mSDtfsCounter, 823 mSDsluCounter, 12574 mSDsCounter, 0 mSdLazyCounter, 1044 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 823 SdHoareTripleChecker+Valid, 13179 SdHoareTripleChecker+Invalid, 1046 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1044 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-18 14:33:57,362 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [823 Valid, 13179 Invalid, 1046 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1044 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-18 14:33:57,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1656 states. [2024-11-18 14:33:57,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1656 to 1644. [2024-11-18 14:33:57,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1644 states, 1641 states have (on average 1.0633759902498476) internal successors, (1745), 1642 states have internal predecessors, (1745), 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) [2024-11-18 14:33:57,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1644 states to 1644 states and 1747 transitions. [2024-11-18 14:33:57,408 INFO L78 Accepts]: Start accepts. Automaton has 1644 states and 1747 transitions. Word has length 636 [2024-11-18 14:33:57,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:33:57,408 INFO L471 AbstractCegarLoop]: Abstraction has 1644 states and 1747 transitions. [2024-11-18 14:33:57,409 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 21.5) internal successors, (688), 32 states have internal predecessors, (688), 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) [2024-11-18 14:33:57,409 INFO L276 IsEmpty]: Start isEmpty. Operand 1644 states and 1747 transitions. [2024-11-18 14:33:57,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 686 [2024-11-18 14:33:57,412 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:33:57,413 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, 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-18 14:33:57,428 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2024-11-18 14:33:57,614 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2024-11-18 14:33:57,614 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:33:57,615 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:33:57,615 INFO L85 PathProgramCache]: Analyzing trace with hash 37600824, now seen corresponding path program 1 times [2024-11-18 14:33:57,615 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:33:57,615 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1849711132] [2024-11-18 14:33:57,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:33:57,615 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:33:57,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:33:58,580 INFO L134 CoverageAnalysis]: Checked inductivity of 1367 backedges. 30 proven. 969 refuted. 0 times theorem prover too weak. 368 trivial. 0 not checked. [2024-11-18 14:33:58,580 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:33:58,580 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1849711132] [2024-11-18 14:33:58,580 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1849711132] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 14:33:58,581 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1332882724] [2024-11-18 14:33:58,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:33:58,581 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 14:33:58,581 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 14:33:58,582 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-18 14:33:58,583 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-18 14:33:58,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:33:58,820 INFO L255 TraceCheckSpWp]: Trace formula consists of 1839 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-11-18 14:33:58,826 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 14:33:59,006 INFO L134 CoverageAnalysis]: Checked inductivity of 1367 backedges. 474 proven. 212 refuted. 0 times theorem prover too weak. 681 trivial. 0 not checked. [2024-11-18 14:33:59,006 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-18 14:33:59,169 INFO L134 CoverageAnalysis]: Checked inductivity of 1367 backedges. 474 proven. 212 refuted. 0 times theorem prover too weak. 681 trivial. 0 not checked. [2024-11-18 14:33:59,170 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1332882724] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-18 14:33:59,170 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-18 14:33:59,170 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 11, 11] total 24 [2024-11-18 14:33:59,170 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [263431910] [2024-11-18 14:33:59,170 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-18 14:33:59,171 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-11-18 14:33:59,171 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:33:59,172 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-11-18 14:33:59,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=507, Unknown=0, NotChecked=0, Total=552 [2024-11-18 14:33:59,172 INFO L87 Difference]: Start difference. First operand 1644 states and 1747 transitions. Second operand has 24 states, 24 states have (on average 32.125) internal successors, (771), 24 states have internal predecessors, (771), 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) [2024-11-18 14:34:00,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:34:00,250 INFO L93 Difference]: Finished difference Result 2059 states and 2185 transitions. [2024-11-18 14:34:00,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2024-11-18 14:34:00,250 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 32.125) internal successors, (771), 24 states have internal predecessors, (771), 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 685 [2024-11-18 14:34:00,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:34:00,255 INFO L225 Difference]: With dead ends: 2059 [2024-11-18 14:34:00,255 INFO L226 Difference]: Without dead ends: 1763 [2024-11-18 14:34:00,257 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1459 GetRequests, 1388 SyntacticMatches, 0 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1144 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=496, Invalid=4760, Unknown=0, NotChecked=0, Total=5256 [2024-11-18 14:34:00,258 INFO L432 NwaCegarLoop]: 703 mSDtfsCounter, 1574 mSDsluCounter, 13168 mSDsCounter, 0 mSdLazyCounter, 1430 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1574 SdHoareTripleChecker+Valid, 13871 SdHoareTripleChecker+Invalid, 1453 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 1430 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-18 14:34:00,258 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1574 Valid, 13871 Invalid, 1453 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 1430 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-18 14:34:00,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1763 states. [2024-11-18 14:34:00,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1763 to 1642. [2024-11-18 14:34:00,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1642 states, 1639 states have (on average 1.0585723001830385) internal successors, (1735), 1640 states have internal predecessors, (1735), 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) [2024-11-18 14:34:00,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1642 states to 1642 states and 1737 transitions. [2024-11-18 14:34:00,307 INFO L78 Accepts]: Start accepts. Automaton has 1642 states and 1737 transitions. Word has length 685 [2024-11-18 14:34:00,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:34:00,308 INFO L471 AbstractCegarLoop]: Abstraction has 1642 states and 1737 transitions. [2024-11-18 14:34:00,309 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 32.125) internal successors, (771), 24 states have internal predecessors, (771), 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) [2024-11-18 14:34:00,309 INFO L276 IsEmpty]: Start isEmpty. Operand 1642 states and 1737 transitions. [2024-11-18 14:34:00,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 746 [2024-11-18 14:34:00,313 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:34:00,313 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, 7, 6, 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, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:34:00,330 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-11-18 14:34:00,517 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 14:34:00,518 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:34:00,518 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:34:00,518 INFO L85 PathProgramCache]: Analyzing trace with hash -1036327175, now seen corresponding path program 1 times [2024-11-18 14:34:00,518 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:34:00,518 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [251311462] [2024-11-18 14:34:00,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:34:00,519 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:34:00,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:34:01,882 INFO L134 CoverageAnalysis]: Checked inductivity of 1606 backedges. 136 proven. 1408 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2024-11-18 14:34:01,883 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:34:01,883 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [251311462] [2024-11-18 14:34:01,883 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [251311462] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 14:34:01,883 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2092160108] [2024-11-18 14:34:01,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:34:01,883 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 14:34:01,883 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 14:34:01,885 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-18 14:34:01,886 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-18 14:34:02,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:34:02,123 INFO L255 TraceCheckSpWp]: Trace formula consists of 1979 conjuncts, 57 conjuncts are in the unsatisfiable core [2024-11-18 14:34:02,130 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 14:34:03,186 INFO L134 CoverageAnalysis]: Checked inductivity of 1606 backedges. 298 proven. 1228 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2024-11-18 14:34:03,186 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-18 14:34:03,761 INFO L134 CoverageAnalysis]: Checked inductivity of 1606 backedges. 35 proven. 1491 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2024-11-18 14:34:03,761 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2092160108] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-18 14:34:03,761 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-18 14:34:03,762 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 25, 25] total 40 [2024-11-18 14:34:03,762 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [932341825] [2024-11-18 14:34:03,762 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-18 14:34:03,763 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 40 states [2024-11-18 14:34:03,763 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:34:03,764 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2024-11-18 14:34:03,764 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=106, Invalid=1454, Unknown=0, NotChecked=0, Total=1560 [2024-11-18 14:34:03,765 INFO L87 Difference]: Start difference. First operand 1642 states and 1737 transitions. Second operand has 40 states, 40 states have (on average 25.5) internal successors, (1020), 40 states have internal predecessors, (1020), 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) [2024-11-18 14:34:04,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:34:04,526 INFO L93 Difference]: Finished difference Result 1663 states and 1757 transitions. [2024-11-18 14:34:04,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2024-11-18 14:34:04,526 INFO L78 Accepts]: Start accepts. Automaton has has 40 states, 40 states have (on average 25.5) internal successors, (1020), 40 states have internal predecessors, (1020), 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 745 [2024-11-18 14:34:04,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:34:04,531 INFO L225 Difference]: With dead ends: 1663 [2024-11-18 14:34:04,531 INFO L226 Difference]: Without dead ends: 1660 [2024-11-18 14:34:04,533 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1543 GetRequests, 1482 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 767 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=287, Invalid=3619, Unknown=0, NotChecked=0, Total=3906 [2024-11-18 14:34:04,533 INFO L432 NwaCegarLoop]: 849 mSDtfsCounter, 1292 mSDsluCounter, 20833 mSDsCounter, 0 mSdLazyCounter, 1689 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1292 SdHoareTripleChecker+Valid, 21682 SdHoareTripleChecker+Invalid, 1691 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1689 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-18 14:34:04,533 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1292 Valid, 21682 Invalid, 1691 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1689 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-18 14:34:04,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1660 states. [2024-11-18 14:34:04,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1660 to 1642. [2024-11-18 14:34:04,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1642 states, 1639 states have (on average 1.0579621720561319) internal successors, (1734), 1640 states have internal predecessors, (1734), 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) [2024-11-18 14:34:04,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1642 states to 1642 states and 1736 transitions. [2024-11-18 14:34:04,580 INFO L78 Accepts]: Start accepts. Automaton has 1642 states and 1736 transitions. Word has length 745 [2024-11-18 14:34:04,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:34:04,581 INFO L471 AbstractCegarLoop]: Abstraction has 1642 states and 1736 transitions. [2024-11-18 14:34:04,581 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 40 states, 40 states have (on average 25.5) internal successors, (1020), 40 states have internal predecessors, (1020), 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) [2024-11-18 14:34:04,581 INFO L276 IsEmpty]: Start isEmpty. Operand 1642 states and 1736 transitions. [2024-11-18 14:34:04,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 795 [2024-11-18 14:34:04,585 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:34:04,585 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, 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, 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, 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] [2024-11-18 14:34:04,600 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-11-18 14:34:04,785 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable30 [2024-11-18 14:34:04,786 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:34:04,786 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:34:04,787 INFO L85 PathProgramCache]: Analyzing trace with hash 502016475, now seen corresponding path program 1 times [2024-11-18 14:34:04,787 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:34:04,787 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1290654802] [2024-11-18 14:34:04,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:34:04,787 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:34:04,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:34:05,927 INFO L134 CoverageAnalysis]: Checked inductivity of 1845 backedges. 38 proven. 1461 refuted. 0 times theorem prover too weak. 346 trivial. 0 not checked. [2024-11-18 14:34:05,928 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:34:05,928 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1290654802] [2024-11-18 14:34:05,928 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1290654802] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 14:34:05,928 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [377933219] [2024-11-18 14:34:05,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:34:05,928 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 14:34:05,928 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 14:34:05,930 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-18 14:34:05,932 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-18 14:34:06,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:34:06,201 INFO L255 TraceCheckSpWp]: Trace formula consists of 2105 conjuncts, 31 conjuncts are in the unsatisfiable core [2024-11-18 14:34:06,211 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 14:34:06,552 INFO L134 CoverageAnalysis]: Checked inductivity of 1845 backedges. 667 proven. 493 refuted. 0 times theorem prover too weak. 685 trivial. 0 not checked. [2024-11-18 14:34:06,552 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-18 14:34:06,837 INFO L134 CoverageAnalysis]: Checked inductivity of 1845 backedges. 667 proven. 493 refuted. 0 times theorem prover too weak. 685 trivial. 0 not checked. [2024-11-18 14:34:06,837 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [377933219] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-18 14:34:06,837 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-18 14:34:06,838 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 13, 13] total 30 [2024-11-18 14:34:06,838 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1978087298] [2024-11-18 14:34:06,838 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-18 14:34:06,839 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2024-11-18 14:34:06,839 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:34:06,840 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2024-11-18 14:34:06,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=802, Unknown=0, NotChecked=0, Total=870 [2024-11-18 14:34:06,840 INFO L87 Difference]: Start difference. First operand 1642 states and 1736 transitions. Second operand has 30 states, 30 states have (on average 32.833333333333336) internal successors, (985), 30 states have internal predecessors, (985), 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) [2024-11-18 14:34:08,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:34:08,147 INFO L93 Difference]: Finished difference Result 1766 states and 1863 transitions. [2024-11-18 14:34:08,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2024-11-18 14:34:08,148 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 32.833333333333336) internal successors, (985), 30 states have internal predecessors, (985), 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 794 [2024-11-18 14:34:08,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:34:08,153 INFO L225 Difference]: With dead ends: 1766 [2024-11-18 14:34:08,153 INFO L226 Difference]: Without dead ends: 1662 [2024-11-18 14:34:08,155 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1679 GetRequests, 1600 SyntacticMatches, 0 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1422 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=560, Invalid=5920, Unknown=0, NotChecked=0, Total=6480 [2024-11-18 14:34:08,155 INFO L432 NwaCegarLoop]: 927 mSDtfsCounter, 1999 mSDsluCounter, 18807 mSDsCounter, 0 mSdLazyCounter, 1943 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1999 SdHoareTripleChecker+Valid, 19734 SdHoareTripleChecker+Invalid, 1968 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 1943 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-18 14:34:08,156 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1999 Valid, 19734 Invalid, 1968 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 1943 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-18 14:34:08,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1662 states. [2024-11-18 14:34:08,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1662 to 1641. [2024-11-18 14:34:08,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1641 states, 1639 states have (on average 1.0530811470408785) internal successors, (1726), 1639 states have internal predecessors, (1726), 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) [2024-11-18 14:34:08,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1641 states to 1641 states and 1727 transitions. [2024-11-18 14:34:08,206 INFO L78 Accepts]: Start accepts. Automaton has 1641 states and 1727 transitions. Word has length 794 [2024-11-18 14:34:08,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:34:08,207 INFO L471 AbstractCegarLoop]: Abstraction has 1641 states and 1727 transitions. [2024-11-18 14:34:08,207 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 32.833333333333336) internal successors, (985), 30 states have internal predecessors, (985), 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) [2024-11-18 14:34:08,207 INFO L276 IsEmpty]: Start isEmpty. Operand 1641 states and 1727 transitions. [2024-11-18 14:34:08,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 856 [2024-11-18 14:34:08,212 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:34:08,212 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, 8, 7, 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, 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, 1, 1] [2024-11-18 14:34:08,227 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2024-11-18 14:34:08,413 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 14:34:08,413 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:34:08,413 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:34:08,414 INFO L85 PathProgramCache]: Analyzing trace with hash 720245394, now seen corresponding path program 1 times [2024-11-18 14:34:08,414 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:34:08,414 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [720170219] [2024-11-18 14:34:08,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:34:08,414 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:34:08,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:34:09,962 INFO L134 CoverageAnalysis]: Checked inductivity of 2149 backedges. 93 proven. 2031 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2024-11-18 14:34:09,963 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:34:09,963 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [720170219] [2024-11-18 14:34:09,963 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [720170219] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 14:34:09,963 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1046082972] [2024-11-18 14:34:09,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:34:09,963 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 14:34:09,963 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 14:34:09,964 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-18 14:34:09,965 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-11-18 14:34:10,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:34:10,218 INFO L255 TraceCheckSpWp]: Trace formula consists of 2246 conjuncts, 69 conjuncts are in the unsatisfiable core [2024-11-18 14:34:10,226 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 14:34:11,480 INFO L134 CoverageAnalysis]: Checked inductivity of 2149 backedges. 257 proven. 1867 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2024-11-18 14:34:11,480 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-18 14:34:12,126 INFO L134 CoverageAnalysis]: Checked inductivity of 2149 backedges. 40 proven. 2084 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2024-11-18 14:34:12,126 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1046082972] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-18 14:34:12,126 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-18 14:34:12,126 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [30, 29, 29] total 46 [2024-11-18 14:34:12,127 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1014625158] [2024-11-18 14:34:12,127 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-18 14:34:12,128 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2024-11-18 14:34:12,128 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:34:12,129 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2024-11-18 14:34:12,129 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=124, Invalid=1946, Unknown=0, NotChecked=0, Total=2070 [2024-11-18 14:34:12,129 INFO L87 Difference]: Start difference. First operand 1641 states and 1727 transitions. Second operand has 46 states, 46 states have (on average 28.065217391304348) internal successors, (1291), 46 states have internal predecessors, (1291), 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) [2024-11-18 14:34:13,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:34:13,255 INFO L93 Difference]: Finished difference Result 1662 states and 1748 transitions. [2024-11-18 14:34:13,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2024-11-18 14:34:13,255 INFO L78 Accepts]: Start accepts. Automaton has has 46 states, 46 states have (on average 28.065217391304348) internal successors, (1291), 46 states have internal predecessors, (1291), 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 855 [2024-11-18 14:34:13,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:34:13,259 INFO L225 Difference]: With dead ends: 1662 [2024-11-18 14:34:13,259 INFO L226 Difference]: Without dead ends: 0 [2024-11-18 14:34:13,261 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1774 GetRequests, 1702 SyntacticMatches, 0 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1064 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=341, Invalid=5061, Unknown=0, NotChecked=0, Total=5402 [2024-11-18 14:34:13,262 INFO L432 NwaCegarLoop]: 1020 mSDtfsCounter, 1261 mSDsluCounter, 33269 mSDsCounter, 0 mSdLazyCounter, 2558 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1261 SdHoareTripleChecker+Valid, 34289 SdHoareTripleChecker+Invalid, 2560 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 2558 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-18 14:34:13,262 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1261 Valid, 34289 Invalid, 2560 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 2558 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-18 14:34:13,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-18 14:34:13,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-18 14:34:13,262 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) [2024-11-18 14:34:13,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-18 14:34:13,263 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 855 [2024-11-18 14:34:13,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:34:13,263 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-18 14:34:13,264 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 46 states, 46 states have (on average 28.065217391304348) internal successors, (1291), 46 states have internal predecessors, (1291), 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) [2024-11-18 14:34:13,264 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-18 14:34:13,264 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-18 14:34:13,266 INFO L782 garLoopResultBuilder]: Registering result SAFE for location errorErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-18 14:34:13,281 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2024-11-18 14:34:13,466 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32,16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 14:34:13,470 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] [2024-11-18 14:34:13,471 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-18 14:34:25,165 WARN L286 SmtUtils]: Spent 9.68s on a formula simplification. DAG size of input: 264 DAG size of output: 323 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.or) [2024-11-18 14:34:40,775 WARN L286 SmtUtils]: Spent 14.95s on a formula simplification. DAG size of input: 318 DAG size of output: 409 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.or)