./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-array/btor2c-lazyMod.safe_arbitrated_fifos_n2d8w8.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 61a67961 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-array/btor2c-lazyMod.safe_arbitrated_fifos_n2d8w8.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 1d054f79132e175b09d8c50472a4c24ca52f401c76e1d0704dd5609a369827e2 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.fs.cvc5-61a6796-m [2024-10-14 05:22:27,326 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-14 05:22:27,403 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-10-14 05:22:27,412 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-14 05:22:27,412 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-14 05:22:27,438 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-14 05:22:27,439 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-14 05:22:27,439 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-14 05:22:27,440 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-14 05:22:27,440 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-14 05:22:27,440 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-14 05:22:27,441 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-14 05:22:27,442 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-14 05:22:27,444 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-14 05:22:27,444 INFO L153 SettingsManager]: * Use SBE=true [2024-10-14 05:22:27,444 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-14 05:22:27,444 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-14 05:22:27,445 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-14 05:22:27,445 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-14 05:22:27,445 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-14 05:22:27,445 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-14 05:22:27,446 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-14 05:22:27,447 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-14 05:22:27,447 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-14 05:22:27,447 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-14 05:22:27,448 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-14 05:22:27,448 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-14 05:22:27,448 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-14 05:22:27,449 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-14 05:22:27,449 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 05:22:27,449 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-14 05:22:27,450 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-14 05:22:27,450 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-14 05:22:27,450 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-14 05:22:27,450 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-14 05:22:27,451 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-14 05:22:27,451 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-14 05:22:27,451 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-14 05:22:27,451 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-14 05:22:27,451 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1d054f79132e175b09d8c50472a4c24ca52f401c76e1d0704dd5609a369827e2 [2024-10-14 05:22:27,718 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-14 05:22:27,739 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-14 05:22:27,742 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-14 05:22:27,744 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-14 05:22:27,745 INFO L274 PluginConnector]: CDTParser initialized [2024-10-14 05:22:27,746 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-array/btor2c-lazyMod.safe_arbitrated_fifos_n2d8w8.c [2024-10-14 05:22:29,189 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-14 05:22:29,419 INFO L384 CDTParser]: Found 1 translation units. [2024-10-14 05:22:29,419 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-array/btor2c-lazyMod.safe_arbitrated_fifos_n2d8w8.c [2024-10-14 05:22:29,435 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/04a5950f2/7364475afb09469abc9ca3a636fad992/FLAG763e3a675 [2024-10-14 05:22:29,756 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/04a5950f2/7364475afb09469abc9ca3a636fad992 [2024-10-14 05:22:29,758 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-14 05:22:29,759 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-14 05:22:29,766 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-14 05:22:29,766 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-14 05:22:29,771 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-14 05:22:29,772 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 05:22:29" (1/1) ... [2024-10-14 05:22:29,773 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4749e62f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:22:29, skipping insertion in model container [2024-10-14 05:22:29,773 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 05:22:29" (1/1) ... [2024-10-14 05:22:29,823 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-14 05:22:29,998 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-array/btor2c-lazyMod.safe_arbitrated_fifos_n2d8w8.c[1268,1281] [2024-10-14 05:22:30,230 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 05:22:30,238 INFO L200 MainTranslator]: Completed pre-run [2024-10-14 05:22:30,280 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-array/btor2c-lazyMod.safe_arbitrated_fifos_n2d8w8.c[1268,1281] [2024-10-14 05:22:30,454 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 05:22:30,469 INFO L204 MainTranslator]: Completed translation [2024-10-14 05:22:30,470 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:22:30 WrapperNode [2024-10-14 05:22:30,470 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-14 05:22:30,471 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-14 05:22:30,471 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-14 05:22:30,472 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-14 05:22:30,478 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:22:30" (1/1) ... [2024-10-14 05:22:30,521 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:22:30" (1/1) ... [2024-10-14 05:22:30,853 INFO L138 Inliner]: procedures = 18, calls = 41, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 2377 [2024-10-14 05:22:30,857 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-14 05:22:30,861 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-14 05:22:30,862 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-14 05:22:30,862 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-14 05:22:30,873 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:22:30" (1/1) ... [2024-10-14 05:22:30,873 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:22:30" (1/1) ... [2024-10-14 05:22:30,945 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:22:30" (1/1) ... [2024-10-14 05:22:31,093 INFO L175 MemorySlicer]: Split 20 memory accesses to 3 slices as follows [2, 9, 9]. 45 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 8 writes are split as follows [0, 4, 4]. [2024-10-14 05:22:31,094 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:22:30" (1/1) ... [2024-10-14 05:22:31,094 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:22:30" (1/1) ... [2024-10-14 05:22:31,205 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:22:30" (1/1) ... [2024-10-14 05:22:31,226 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:22:30" (1/1) ... [2024-10-14 05:22:31,245 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:22:30" (1/1) ... [2024-10-14 05:22:31,266 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:22:30" (1/1) ... [2024-10-14 05:22:31,304 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-14 05:22:31,306 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-14 05:22:31,306 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-14 05:22:31,306 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-14 05:22:31,307 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:22:30" (1/1) ... [2024-10-14 05:22:31,312 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 05:22:31,329 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 05:22:31,346 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-14 05:22:31,348 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-14 05:22:31,402 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-14 05:22:31,402 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-10-14 05:22:31,403 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-10-14 05:22:31,403 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-14 05:22:31,403 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-14 05:22:31,403 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-10-14 05:22:31,403 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-14 05:22:31,404 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-10-14 05:22:31,404 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-10-14 05:22:31,404 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-10-14 05:22:31,404 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-14 05:22:31,405 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-14 05:22:31,405 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-10-14 05:22:31,406 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-10-14 05:22:31,406 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-10-14 05:22:31,406 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-14 05:22:31,693 INFO L238 CfgBuilder]: Building ICFG [2024-10-14 05:22:31,694 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-14 05:22:34,135 INFO L? ?]: Removed 1283 outVars from TransFormulas that were not future-live. [2024-10-14 05:22:34,135 INFO L287 CfgBuilder]: Performing block encoding [2024-10-14 05:22:34,220 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-14 05:22:34,222 INFO L314 CfgBuilder]: Removed 7 assume(true) statements. [2024-10-14 05:22:34,223 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 05:22:34 BoogieIcfgContainer [2024-10-14 05:22:34,223 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-14 05:22:34,224 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-14 05:22:34,225 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-14 05:22:34,229 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-14 05:22:34,229 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 05:22:29" (1/3) ... [2024-10-14 05:22:34,231 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73b1bf6d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 05:22:34, skipping insertion in model container [2024-10-14 05:22:34,231 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:22:30" (2/3) ... [2024-10-14 05:22:34,232 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73b1bf6d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 05:22:34, skipping insertion in model container [2024-10-14 05:22:34,232 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 05:22:34" (3/3) ... [2024-10-14 05:22:34,234 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.safe_arbitrated_fifos_n2d8w8.c [2024-10-14 05:22:34,252 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-14 05:22:34,252 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-14 05:22:34,336 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-14 05:22:34,343 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;@2450f8fd, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-14 05:22:34,344 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-14 05:22:34,351 INFO L276 IsEmpty]: Start isEmpty. Operand has 743 states, 735 states have (on average 1.5034013605442176) internal successors, (1105), 736 states have internal predecessors, (1105), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-10-14 05:22:34,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2024-10-14 05:22:34,372 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 05:22:34,373 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 05:22:34,373 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 05:22:34,378 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 05:22:34,378 INFO L85 PathProgramCache]: Analyzing trace with hash -1037496957, now seen corresponding path program 1 times [2024-10-14 05:22:34,387 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 05:22:34,387 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [264106780] [2024-10-14 05:22:34,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 05:22:34,388 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 05:22:34,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:22:34,928 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-10-14 05:22:34,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:22:34,938 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-10-14 05:22:34,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:22:34,946 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-14 05:22:34,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:22:34,951 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-14 05:22:34,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:22:34,957 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-10-14 05:22:34,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:22:34,961 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-10-14 05:22:34,964 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 05:22:34,964 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [264106780] [2024-10-14 05:22:34,965 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [264106780] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 05:22:34,965 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 05:22:34,965 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 05:22:34,967 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1113252680] [2024-10-14 05:22:34,968 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 05:22:34,972 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-14 05:22:34,973 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 05:22:34,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-14 05:22:34,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-14 05:22:34,998 INFO L87 Difference]: Start difference. First operand has 743 states, 735 states have (on average 1.5034013605442176) internal successors, (1105), 736 states have internal predecessors, (1105), 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 2 states, 2 states have (on average 109.0) internal successors, (218), 2 states have internal predecessors, (218), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-10-14 05:22:35,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 05:22:35,117 INFO L93 Difference]: Finished difference Result 1479 states and 2225 transitions. [2024-10-14 05:22:35,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-14 05:22:35,122 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 109.0) internal successors, (218), 2 states have internal predecessors, (218), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 240 [2024-10-14 05:22:35,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 05:22:35,140 INFO L225 Difference]: With dead ends: 1479 [2024-10-14 05:22:35,141 INFO L226 Difference]: Without dead ends: 742 [2024-10-14 05:22:35,149 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-14 05:22:35,154 INFO L432 NwaCegarLoop]: 1099 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1099 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 05:22:35,155 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1099 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 05:22:35,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 742 states. [2024-10-14 05:22:35,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 742 to 742. [2024-10-14 05:22:35,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 742 states, 735 states have (on average 1.491156462585034) internal successors, (1096), 735 states have internal predecessors, (1096), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-10-14 05:22:35,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 742 states to 742 states and 1106 transitions. [2024-10-14 05:22:35,247 INFO L78 Accepts]: Start accepts. Automaton has 742 states and 1106 transitions. Word has length 240 [2024-10-14 05:22:35,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 05:22:35,248 INFO L471 AbstractCegarLoop]: Abstraction has 742 states and 1106 transitions. [2024-10-14 05:22:35,249 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 109.0) internal successors, (218), 2 states have internal predecessors, (218), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-10-14 05:22:35,250 INFO L276 IsEmpty]: Start isEmpty. Operand 742 states and 1106 transitions. [2024-10-14 05:22:35,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2024-10-14 05:22:35,257 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 05:22:35,258 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 05:22:35,258 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-14 05:22:35,259 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 05:22:35,259 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 05:22:35,259 INFO L85 PathProgramCache]: Analyzing trace with hash 1066652070, now seen corresponding path program 1 times [2024-10-14 05:22:35,260 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 05:22:35,260 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [22886856] [2024-10-14 05:22:35,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 05:22:35,260 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 05:22:35,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:22:36,010 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-10-14 05:22:36,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:22:36,017 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-10-14 05:22:36,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:22:36,022 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-14 05:22:36,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:22:36,027 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-14 05:22:36,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:22:36,030 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-10-14 05:22:36,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:22:36,034 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-10-14 05:22:36,035 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 05:22:36,035 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [22886856] [2024-10-14 05:22:36,036 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [22886856] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 05:22:36,036 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 05:22:36,037 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 05:22:36,037 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1463799316] [2024-10-14 05:22:36,038 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 05:22:36,040 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 05:22:36,040 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 05:22:36,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 05:22:36,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 05:22:36,043 INFO L87 Difference]: Start difference. First operand 742 states and 1106 transitions. Second operand has 3 states, 3 states have (on average 72.66666666666667) internal successors, (218), 3 states have internal predecessors, (218), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-10-14 05:22:36,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 05:22:36,098 INFO L93 Difference]: Finished difference Result 1483 states and 2211 transitions. [2024-10-14 05:22:36,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 05:22:36,099 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 72.66666666666667) internal successors, (218), 3 states have internal predecessors, (218), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 240 [2024-10-14 05:22:36,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 05:22:36,103 INFO L225 Difference]: With dead ends: 1483 [2024-10-14 05:22:36,103 INFO L226 Difference]: Without dead ends: 747 [2024-10-14 05:22:36,106 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 05:22:36,108 INFO L432 NwaCegarLoop]: 1098 mSDtfsCounter, 6 mSDsluCounter, 1096 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 2194 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 05:22:36,109 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 2194 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 05:22:36,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 747 states. [2024-10-14 05:22:36,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 747 to 743. [2024-10-14 05:22:36,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 743 states, 736 states have (on average 1.4904891304347827) internal successors, (1097), 736 states have internal predecessors, (1097), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-10-14 05:22:36,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 743 states to 743 states and 1107 transitions. [2024-10-14 05:22:36,139 INFO L78 Accepts]: Start accepts. Automaton has 743 states and 1107 transitions. Word has length 240 [2024-10-14 05:22:36,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 05:22:36,140 INFO L471 AbstractCegarLoop]: Abstraction has 743 states and 1107 transitions. [2024-10-14 05:22:36,140 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 72.66666666666667) internal successors, (218), 3 states have internal predecessors, (218), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-10-14 05:22:36,141 INFO L276 IsEmpty]: Start isEmpty. Operand 743 states and 1107 transitions. [2024-10-14 05:22:36,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2024-10-14 05:22:36,145 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 05:22:36,145 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 05:22:36,145 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-14 05:22:36,146 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 05:22:36,146 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 05:22:36,146 INFO L85 PathProgramCache]: Analyzing trace with hash 122243403, now seen corresponding path program 1 times [2024-10-14 05:22:36,147 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 05:22:36,147 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1362819203] [2024-10-14 05:22:36,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 05:22:36,147 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 05:22:36,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:22:36,737 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-14 05:22:36,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:22:36,740 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-10-14 05:22:36,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:22:36,742 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-14 05:22:36,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:22:36,744 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-10-14 05:22:36,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:22:36,746 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2024-10-14 05:22:36,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:22:36,748 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-10-14 05:22:36,748 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 05:22:36,748 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1362819203] [2024-10-14 05:22:36,749 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1362819203] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 05:22:36,749 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1349527967] [2024-10-14 05:22:36,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 05:22:36,749 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 05:22:36,750 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 05:22:36,751 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 05:22:36,753 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-14 05:22:37,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:22:37,267 INFO L255 TraceCheckSpWp]: Trace formula consists of 1085 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-14 05:22:37,281 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 05:22:37,332 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-10-14 05:22:37,336 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 05:22:37,403 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2024-10-14 05:22:37,404 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1349527967] provided 1 perfect and 1 imperfect interpolant sequences [2024-10-14 05:22:37,404 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-10-14 05:22:37,404 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4, 4] total 6 [2024-10-14 05:22:37,404 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1750568439] [2024-10-14 05:22:37,406 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 05:22:37,407 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 05:22:37,407 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 05:22:37,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 05:22:37,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-10-14 05:22:37,408 INFO L87 Difference]: Start difference. First operand 743 states and 1107 transitions. Second operand has 3 states, 3 states have (on average 73.66666666666667) internal successors, (221), 3 states have internal predecessors, (221), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-10-14 05:22:37,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 05:22:37,445 INFO L93 Difference]: Finished difference Result 1458 states and 2173 transitions. [2024-10-14 05:22:37,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 05:22:37,446 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 73.66666666666667) internal successors, (221), 3 states have internal predecessors, (221), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 243 [2024-10-14 05:22:37,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 05:22:37,449 INFO L225 Difference]: With dead ends: 1458 [2024-10-14 05:22:37,450 INFO L226 Difference]: Without dead ends: 744 [2024-10-14 05:22:37,452 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 497 GetRequests, 493 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-10-14 05:22:37,454 INFO L432 NwaCegarLoop]: 1098 mSDtfsCounter, 6 mSDsluCounter, 1090 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 2188 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 05:22:37,454 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 2188 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 05:22:37,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 744 states. [2024-10-14 05:22:37,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 744 to 744. [2024-10-14 05:22:37,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 744 states, 737 states have (on average 1.4898236092265944) internal successors, (1098), 737 states have internal predecessors, (1098), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-10-14 05:22:37,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 744 states to 744 states and 1108 transitions. [2024-10-14 05:22:37,472 INFO L78 Accepts]: Start accepts. Automaton has 744 states and 1108 transitions. Word has length 243 [2024-10-14 05:22:37,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 05:22:37,472 INFO L471 AbstractCegarLoop]: Abstraction has 744 states and 1108 transitions. [2024-10-14 05:22:37,473 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 73.66666666666667) internal successors, (221), 3 states have internal predecessors, (221), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-10-14 05:22:37,473 INFO L276 IsEmpty]: Start isEmpty. Operand 744 states and 1108 transitions. [2024-10-14 05:22:37,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2024-10-14 05:22:37,476 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 05:22:37,476 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 05:22:37,497 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-10-14 05:22:37,677 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 05:22:37,678 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 05:22:37,678 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 05:22:37,679 INFO L85 PathProgramCache]: Analyzing trace with hash 1972531103, now seen corresponding path program 1 times [2024-10-14 05:22:37,679 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 05:22:37,679 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1903546388] [2024-10-14 05:22:37,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 05:22:37,679 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 05:22:37,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:22:38,068 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-10-14 05:22:38,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:22:38,071 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-14 05:22:38,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:22:38,075 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-14 05:22:38,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:22:38,078 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-10-14 05:22:38,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:22:38,080 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-10-14 05:22:38,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:22:38,082 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2024-10-14 05:22:38,082 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 05:22:38,083 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1903546388] [2024-10-14 05:22:38,083 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1903546388] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 05:22:38,083 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [487262194] [2024-10-14 05:22:38,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 05:22:38,085 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 05:22:38,085 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 05:22:38,087 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 05:22:38,088 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-14 05:22:38,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:22:38,593 INFO L255 TraceCheckSpWp]: Trace formula consists of 1095 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-10-14 05:22:38,609 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 05:22:38,652 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2024-10-14 05:22:38,655 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 05:22:39,580 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2024-10-14 05:22:39,580 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [487262194] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 05:22:39,580 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-14 05:22:39,581 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 3, 8] total 12 [2024-10-14 05:22:39,581 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [823720290] [2024-10-14 05:22:39,581 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-14 05:22:39,582 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-14 05:22:39,582 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 05:22:39,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-14 05:22:39,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2024-10-14 05:22:39,584 INFO L87 Difference]: Start difference. First operand 744 states and 1108 transitions. Second operand has 12 states, 12 states have (on average 30.166666666666668) internal successors, (362), 12 states have internal predecessors, (362), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-10-14 05:22:41,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 05:22:41,489 INFO L93 Difference]: Finished difference Result 2101 states and 3132 transitions. [2024-10-14 05:22:41,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-14 05:22:41,490 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 30.166666666666668) internal successors, (362), 12 states have internal predecessors, (362), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 246 [2024-10-14 05:22:41,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 05:22:41,495 INFO L225 Difference]: With dead ends: 2101 [2024-10-14 05:22:41,495 INFO L226 Difference]: Without dead ends: 1364 [2024-10-14 05:22:41,497 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 504 GetRequests, 493 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2024-10-14 05:22:41,498 INFO L432 NwaCegarLoop]: 1312 mSDtfsCounter, 2980 mSDsluCounter, 7277 mSDsCounter, 0 mSdLazyCounter, 2997 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2985 SdHoareTripleChecker+Valid, 8589 SdHoareTripleChecker+Invalid, 3004 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 2997 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-10-14 05:22:41,498 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2985 Valid, 8589 Invalid, 3004 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 2997 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-10-14 05:22:41,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1364 states. [2024-10-14 05:22:41,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1364 to 977. [2024-10-14 05:22:41,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 977 states, 965 states have (on average 1.4870466321243523) internal successors, (1435), 965 states have internal predecessors, (1435), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-10-14 05:22:41,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 977 states to 977 states and 1455 transitions. [2024-10-14 05:22:41,554 INFO L78 Accepts]: Start accepts. Automaton has 977 states and 1455 transitions. Word has length 246 [2024-10-14 05:22:41,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 05:22:41,555 INFO L471 AbstractCegarLoop]: Abstraction has 977 states and 1455 transitions. [2024-10-14 05:22:41,555 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 30.166666666666668) internal successors, (362), 12 states have internal predecessors, (362), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-10-14 05:22:41,555 INFO L276 IsEmpty]: Start isEmpty. Operand 977 states and 1455 transitions. [2024-10-14 05:22:41,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2024-10-14 05:22:41,559 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 05:22:41,559 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 05:22:41,580 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-14 05:22:41,759 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,SelfDestructingSolverStorable3 [2024-10-14 05:22:41,760 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 05:22:41,761 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 05:22:41,761 INFO L85 PathProgramCache]: Analyzing trace with hash 780910908, now seen corresponding path program 1 times [2024-10-14 05:22:41,761 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 05:22:41,761 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1980158817] [2024-10-14 05:22:41,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 05:22:41,761 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 05:22:41,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:22:42,189 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-10-14 05:22:42,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:22:42,191 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-10-14 05:22:42,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:22:42,193 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-10-14 05:22:42,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:22:42,195 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-10-14 05:22:42,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:22:42,197 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-10-14 05:22:42,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:22:42,200 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2024-10-14 05:22:42,200 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 05:22:42,200 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1980158817] [2024-10-14 05:22:42,200 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1980158817] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 05:22:42,200 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [302313069] [2024-10-14 05:22:42,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 05:22:42,201 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 05:22:42,201 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 05:22:42,203 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 05:22:42,205 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-14 05:22:42,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:22:42,657 INFO L255 TraceCheckSpWp]: Trace formula consists of 1108 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-10-14 05:22:42,663 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 05:22:42,690 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-10-14 05:22:42,691 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 05:22:42,736 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2024-10-14 05:22:42,737 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [302313069] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 05:22:42,737 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-14 05:22:42,737 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6, 4] total 9 [2024-10-14 05:22:42,737 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [885634331] [2024-10-14 05:22:42,737 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-14 05:22:42,738 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-14 05:22:42,738 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 05:22:42,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-14 05:22:42,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-10-14 05:22:42,739 INFO L87 Difference]: Start difference. First operand 977 states and 1455 transitions. Second operand has 9 states, 9 states have (on average 28.444444444444443) internal successors, (256), 9 states have internal predecessors, (256), 1 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2024-10-14 05:22:42,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 05:22:42,828 INFO L93 Difference]: Finished difference Result 1981 states and 2955 transitions. [2024-10-14 05:22:42,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-14 05:22:42,828 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 28.444444444444443) internal successors, (256), 9 states have internal predecessors, (256), 1 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 250 [2024-10-14 05:22:42,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 05:22:42,832 INFO L225 Difference]: With dead ends: 1981 [2024-10-14 05:22:42,833 INFO L226 Difference]: Without dead ends: 1016 [2024-10-14 05:22:42,834 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 513 GetRequests, 505 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2024-10-14 05:22:42,835 INFO L432 NwaCegarLoop]: 1107 mSDtfsCounter, 66 mSDsluCounter, 3313 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 4420 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 05:22:42,836 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 4420 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 05:22:42,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1016 states. [2024-10-14 05:22:42,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1016 to 1012. [2024-10-14 05:22:42,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1012 states, 1000 states have (on average 1.484) internal successors, (1484), 1000 states have internal predecessors, (1484), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-10-14 05:22:42,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1012 states to 1012 states and 1504 transitions. [2024-10-14 05:22:42,888 INFO L78 Accepts]: Start accepts. Automaton has 1012 states and 1504 transitions. Word has length 250 [2024-10-14 05:22:42,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 05:22:42,889 INFO L471 AbstractCegarLoop]: Abstraction has 1012 states and 1504 transitions. [2024-10-14 05:22:42,889 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 28.444444444444443) internal successors, (256), 9 states have internal predecessors, (256), 1 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2024-10-14 05:22:42,890 INFO L276 IsEmpty]: Start isEmpty. Operand 1012 states and 1504 transitions. [2024-10-14 05:22:42,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 263 [2024-10-14 05:22:42,895 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 05:22:42,895 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 05:22:42,915 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-10-14 05:22:43,099 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 05:22:43,100 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 05:22:43,101 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 05:22:43,101 INFO L85 PathProgramCache]: Analyzing trace with hash -741536887, now seen corresponding path program 2 times [2024-10-14 05:22:43,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 05:22:43,101 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [907054454] [2024-10-14 05:22:43,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 05:22:43,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 05:22:43,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:22:43,681 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-10-14 05:22:43,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:22:43,684 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-10-14 05:22:43,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:22:43,685 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-10-14 05:22:43,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:22:43,687 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2024-10-14 05:22:43,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:22:43,688 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-10-14 05:22:43,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:22:43,690 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2024-10-14 05:22:43,690 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 05:22:43,690 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [907054454] [2024-10-14 05:22:43,690 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [907054454] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 05:22:43,691 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1498904845] [2024-10-14 05:22:43,691 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-14 05:22:43,691 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 05:22:43,691 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 05:22:43,692 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 05:22:43,694 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-14 05:22:44,147 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-10-14 05:22:44,148 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-14 05:22:44,153 INFO L255 TraceCheckSpWp]: Trace formula consists of 758 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-10-14 05:22:44,160 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 05:22:44,615 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2024-10-14 05:22:44,615 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 05:22:44,615 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1498904845] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 05:22:44,616 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-14 05:22:44,616 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 8 [2024-10-14 05:22:44,616 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [914983347] [2024-10-14 05:22:44,616 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 05:22:44,617 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 05:22:44,617 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 05:22:44,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 05:22:44,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-10-14 05:22:44,618 INFO L87 Difference]: Start difference. First operand 1012 states and 1504 transitions. Second operand has 4 states, 4 states have (on average 56.25) internal successors, (225), 4 states have internal predecessors, (225), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-10-14 05:22:44,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 05:22:44,837 INFO L93 Difference]: Finished difference Result 1667 states and 2479 transitions. [2024-10-14 05:22:44,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 05:22:44,838 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 56.25) internal successors, (225), 4 states have internal predecessors, (225), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 262 [2024-10-14 05:22:44,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 05:22:44,843 INFO L225 Difference]: With dead ends: 1667 [2024-10-14 05:22:44,844 INFO L226 Difference]: Without dead ends: 1012 [2024-10-14 05:22:44,845 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 276 GetRequests, 270 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-10-14 05:22:44,846 INFO L432 NwaCegarLoop]: 998 mSDtfsCounter, 965 mSDsluCounter, 1000 mSDsCounter, 0 mSdLazyCounter, 215 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 965 SdHoareTripleChecker+Valid, 1998 SdHoareTripleChecker+Invalid, 216 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 215 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-14 05:22:44,847 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [965 Valid, 1998 Invalid, 216 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 215 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-14 05:22:44,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1012 states. [2024-10-14 05:22:44,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1012 to 1012. [2024-10-14 05:22:44,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1012 states, 1000 states have (on average 1.48) internal successors, (1480), 1000 states have internal predecessors, (1480), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-10-14 05:22:44,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1012 states to 1012 states and 1500 transitions. [2024-10-14 05:22:44,872 INFO L78 Accepts]: Start accepts. Automaton has 1012 states and 1500 transitions. Word has length 262 [2024-10-14 05:22:44,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 05:22:44,875 INFO L471 AbstractCegarLoop]: Abstraction has 1012 states and 1500 transitions. [2024-10-14 05:22:44,876 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 56.25) internal successors, (225), 4 states have internal predecessors, (225), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-10-14 05:22:44,876 INFO L276 IsEmpty]: Start isEmpty. Operand 1012 states and 1500 transitions. [2024-10-14 05:22:44,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 265 [2024-10-14 05:22:44,905 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 05:22:44,905 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 05:22:44,928 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-10-14 05:22:45,106 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 05:22:45,106 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 05:22:45,107 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 05:22:45,107 INFO L85 PathProgramCache]: Analyzing trace with hash 914770022, now seen corresponding path program 1 times [2024-10-14 05:22:45,107 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 05:22:45,107 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [472689765] [2024-10-14 05:22:45,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 05:22:45,108 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 05:22:45,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:22:45,596 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-10-14 05:22:45,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:22:45,598 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-10-14 05:22:45,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:22:45,600 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-10-14 05:22:45,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:22:45,604 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2024-10-14 05:22:45,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:22:45,606 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-10-14 05:22:45,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:22:45,608 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2024-10-14 05:22:45,608 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 05:22:45,608 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [472689765] [2024-10-14 05:22:45,608 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [472689765] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 05:22:45,609 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [684816430] [2024-10-14 05:22:45,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 05:22:45,609 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 05:22:45,609 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 05:22:45,611 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 05:22:45,612 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-10-14 05:22:46,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:22:46,094 INFO L255 TraceCheckSpWp]: Trace formula consists of 1152 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-10-14 05:22:46,100 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 05:22:46,382 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2024-10-14 05:22:46,383 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 05:22:46,383 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [684816430] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 05:22:46,383 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-14 05:22:46,383 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 10 [2024-10-14 05:22:46,384 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1891878572] [2024-10-14 05:22:46,384 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 05:22:46,384 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 05:22:46,385 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 05:22:46,385 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 05:22:46,386 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2024-10-14 05:22:46,386 INFO L87 Difference]: Start difference. First operand 1012 states and 1500 transitions. Second operand has 6 states, 6 states have (on average 37.833333333333336) internal successors, (227), 6 states have internal predecessors, (227), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-10-14 05:22:46,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 05:22:46,656 INFO L93 Difference]: Finished difference Result 1661 states and 2465 transitions. [2024-10-14 05:22:46,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 05:22:46,656 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 37.833333333333336) internal successors, (227), 6 states have internal predecessors, (227), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 264 [2024-10-14 05:22:46,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 05:22:46,660 INFO L225 Difference]: With dead ends: 1661 [2024-10-14 05:22:46,661 INFO L226 Difference]: Without dead ends: 1012 [2024-10-14 05:22:46,662 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 280 GetRequests, 270 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2024-10-14 05:22:46,663 INFO L432 NwaCegarLoop]: 998 mSDtfsCounter, 1074 mSDsluCounter, 2000 mSDsCounter, 0 mSdLazyCounter, 321 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1079 SdHoareTripleChecker+Valid, 2998 SdHoareTripleChecker+Invalid, 322 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 321 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-14 05:22:46,663 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1079 Valid, 2998 Invalid, 322 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 321 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-14 05:22:46,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1012 states. [2024-10-14 05:22:46,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1012 to 1012. [2024-10-14 05:22:46,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1012 states, 1000 states have (on average 1.479) internal successors, (1479), 1000 states have internal predecessors, (1479), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-10-14 05:22:46,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1012 states to 1012 states and 1499 transitions. [2024-10-14 05:22:46,684 INFO L78 Accepts]: Start accepts. Automaton has 1012 states and 1499 transitions. Word has length 264 [2024-10-14 05:22:46,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 05:22:46,684 INFO L471 AbstractCegarLoop]: Abstraction has 1012 states and 1499 transitions. [2024-10-14 05:22:46,685 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 37.833333333333336) internal successors, (227), 6 states have internal predecessors, (227), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-10-14 05:22:46,685 INFO L276 IsEmpty]: Start isEmpty. Operand 1012 states and 1499 transitions. [2024-10-14 05:22:46,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 266 [2024-10-14 05:22:46,688 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 05:22:46,688 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 05:22:46,708 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-10-14 05:22:46,889 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 05:22:46,890 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 05:22:46,890 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 05:22:46,891 INFO L85 PathProgramCache]: Analyzing trace with hash -678833417, now seen corresponding path program 1 times [2024-10-14 05:22:46,891 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 05:22:46,891 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [54807480] [2024-10-14 05:22:46,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 05:22:46,891 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 05:22:47,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:22:47,404 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-10-14 05:22:47,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:22:47,407 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-10-14 05:22:47,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:22:47,409 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-10-14 05:22:47,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:22:47,412 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2024-10-14 05:22:47,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:22:47,415 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-10-14 05:22:47,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:22:47,417 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2024-10-14 05:22:47,418 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 05:22:47,418 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [54807480] [2024-10-14 05:22:47,418 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [54807480] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 05:22:47,418 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [987011584] [2024-10-14 05:22:47,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 05:22:47,419 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 05:22:47,419 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 05:22:47,420 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 05:22:47,422 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-10-14 05:22:47,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:22:47,908 INFO L255 TraceCheckSpWp]: Trace formula consists of 1155 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-10-14 05:22:47,913 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 05:22:47,944 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2024-10-14 05:22:47,945 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 05:22:48,108 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 10 proven. 24 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-10-14 05:22:48,109 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [987011584] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 05:22:48,109 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-14 05:22:48,109 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 10] total 15 [2024-10-14 05:22:48,109 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [772995111] [2024-10-14 05:22:48,109 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-14 05:22:48,110 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-10-14 05:22:48,110 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 05:22:48,111 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-10-14 05:22:48,112 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=159, Unknown=0, NotChecked=0, Total=210 [2024-10-14 05:22:48,112 INFO L87 Difference]: Start difference. First operand 1012 states and 1499 transitions. Second operand has 15 states, 15 states have (on average 17.4) internal successors, (261), 15 states have internal predecessors, (261), 1 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2024-10-14 05:22:48,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 05:22:48,321 INFO L93 Difference]: Finished difference Result 2032 states and 3014 transitions. [2024-10-14 05:22:48,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-14 05:22:48,322 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 17.4) internal successors, (261), 15 states have internal predecessors, (261), 1 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 265 [2024-10-14 05:22:48,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 05:22:48,326 INFO L225 Difference]: With dead ends: 2032 [2024-10-14 05:22:48,326 INFO L226 Difference]: Without dead ends: 1037 [2024-10-14 05:22:48,329 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 546 GetRequests, 530 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=84, Invalid=222, Unknown=0, NotChecked=0, Total=306 [2024-10-14 05:22:48,330 INFO L432 NwaCegarLoop]: 1110 mSDtfsCounter, 84 mSDsluCounter, 9944 mSDsCounter, 0 mSdLazyCounter, 158 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 11054 SdHoareTripleChecker+Invalid, 160 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 158 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 05:22:48,331 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 11054 Invalid, 160 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 158 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 05:22:48,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1037 states. [2024-10-14 05:22:48,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1037 to 1037. [2024-10-14 05:22:48,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1037 states, 1025 states have (on average 1.4770731707317073) internal successors, (1514), 1025 states have internal predecessors, (1514), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-10-14 05:22:48,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1037 states to 1037 states and 1534 transitions. [2024-10-14 05:22:48,354 INFO L78 Accepts]: Start accepts. Automaton has 1037 states and 1534 transitions. Word has length 265 [2024-10-14 05:22:48,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 05:22:48,355 INFO L471 AbstractCegarLoop]: Abstraction has 1037 states and 1534 transitions. [2024-10-14 05:22:48,355 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 17.4) internal successors, (261), 15 states have internal predecessors, (261), 1 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2024-10-14 05:22:48,355 INFO L276 IsEmpty]: Start isEmpty. Operand 1037 states and 1534 transitions. [2024-10-14 05:22:48,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 281 [2024-10-14 05:22:48,359 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 05:22:48,359 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 5, 5, 5, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 05:22:48,380 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-10-14 05:22:48,560 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 05:22:48,561 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 05:22:48,561 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 05:22:48,561 INFO L85 PathProgramCache]: Analyzing trace with hash 1481509554, now seen corresponding path program 2 times [2024-10-14 05:22:48,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 05:22:48,562 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [985996674] [2024-10-14 05:22:48,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 05:22:48,562 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 05:22:48,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:22:49,093 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-10-14 05:22:49,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:22:49,095 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-10-14 05:22:49,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:22:49,096 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2024-10-14 05:22:49,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:22:49,098 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2024-10-14 05:22:49,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:22:49,099 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2024-10-14 05:22:49,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:22:49,101 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 132 trivial. 0 not checked. [2024-10-14 05:22:49,101 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 05:22:49,101 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [985996674] [2024-10-14 05:22:49,101 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [985996674] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 05:22:49,101 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [675579876] [2024-10-14 05:22:49,101 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-14 05:22:49,102 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 05:22:49,102 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 05:22:49,104 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) [2024-10-14 05:22:49,106 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-10-14 05:22:49,575 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-10-14 05:22:49,575 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-14 05:22:49,579 INFO L255 TraceCheckSpWp]: Trace formula consists of 765 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-10-14 05:22:49,584 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 05:22:49,867 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 154 trivial. 0 not checked. [2024-10-14 05:22:49,867 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 05:22:49,867 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [675579876] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 05:22:49,867 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-14 05:22:49,867 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 11 [2024-10-14 05:22:49,870 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [568898874] [2024-10-14 05:22:49,870 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 05:22:49,871 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 05:22:49,871 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 05:22:49,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 05:22:49,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2024-10-14 05:22:49,872 INFO L87 Difference]: Start difference. First operand 1037 states and 1534 transitions. Second operand has 6 states, 6 states have (on average 38.0) internal successors, (228), 6 states have internal predecessors, (228), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-10-14 05:22:50,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 05:22:50,152 INFO L93 Difference]: Finished difference Result 1686 states and 2498 transitions. [2024-10-14 05:22:50,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 05:22:50,153 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 38.0) internal successors, (228), 6 states have internal predecessors, (228), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 280 [2024-10-14 05:22:50,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 05:22:50,157 INFO L225 Difference]: With dead ends: 1686 [2024-10-14 05:22:50,157 INFO L226 Difference]: Without dead ends: 1037 [2024-10-14 05:22:50,159 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 298 GetRequests, 287 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2024-10-14 05:22:50,161 INFO L432 NwaCegarLoop]: 998 mSDtfsCounter, 1072 mSDsluCounter, 1992 mSDsCounter, 0 mSdLazyCounter, 318 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1077 SdHoareTripleChecker+Valid, 2990 SdHoareTripleChecker+Invalid, 319 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 318 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-14 05:22:50,161 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1077 Valid, 2990 Invalid, 319 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 318 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-14 05:22:50,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1037 states. [2024-10-14 05:22:50,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1037 to 1037. [2024-10-14 05:22:50,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1037 states, 1025 states have (on average 1.4760975609756097) internal successors, (1513), 1025 states have internal predecessors, (1513), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-10-14 05:22:50,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1037 states to 1037 states and 1533 transitions. [2024-10-14 05:22:50,187 INFO L78 Accepts]: Start accepts. Automaton has 1037 states and 1533 transitions. Word has length 280 [2024-10-14 05:22:50,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 05:22:50,187 INFO L471 AbstractCegarLoop]: Abstraction has 1037 states and 1533 transitions. [2024-10-14 05:22:50,187 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 38.0) internal successors, (228), 6 states have internal predecessors, (228), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-10-14 05:22:50,188 INFO L276 IsEmpty]: Start isEmpty. Operand 1037 states and 1533 transitions. [2024-10-14 05:22:50,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 282 [2024-10-14 05:22:50,190 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 05:22:50,190 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 5, 5, 5, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 05:22:50,211 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-10-14 05:22:50,391 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 05:22:50,391 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 05:22:50,392 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 05:22:50,392 INFO L85 PathProgramCache]: Analyzing trace with hash 968773384, now seen corresponding path program 1 times [2024-10-14 05:22:50,392 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 05:22:50,392 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [437346256] [2024-10-14 05:22:50,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 05:22:50,393 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 05:22:50,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:22:50,975 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-10-14 05:22:50,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:22:50,978 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-10-14 05:22:50,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:22:50,979 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2024-10-14 05:22:50,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:22:50,981 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2024-10-14 05:22:50,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:22:50,982 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2024-10-14 05:22:50,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:22:50,984 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 132 trivial. 0 not checked. [2024-10-14 05:22:50,985 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 05:22:50,985 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [437346256] [2024-10-14 05:22:50,985 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [437346256] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 05:22:50,985 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [69348744] [2024-10-14 05:22:50,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 05:22:50,985 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 05:22:50,986 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 05:22:50,987 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) [2024-10-14 05:22:50,989 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-10-14 05:22:51,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:22:51,513 INFO L255 TraceCheckSpWp]: Trace formula consists of 1206 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-10-14 05:22:51,518 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 05:22:51,590 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 0 proven. 96 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2024-10-14 05:22:51,590 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 05:22:51,720 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 132 trivial. 0 not checked. [2024-10-14 05:22:51,721 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [69348744] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 05:22:51,721 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-14 05:22:51,721 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 12, 7] total 18 [2024-10-14 05:22:51,721 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1880849639] [2024-10-14 05:22:51,721 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-14 05:22:51,722 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-10-14 05:22:51,723 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 05:22:51,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-10-14 05:22:51,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=240, Unknown=0, NotChecked=0, Total=306 [2024-10-14 05:22:51,724 INFO L87 Difference]: Start difference. First operand 1037 states and 1533 transitions. Second operand has 18 states, 18 states have (on average 15.055555555555555) internal successors, (271), 18 states have internal predecessors, (271), 1 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2024-10-14 05:22:51,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 05:22:51,954 INFO L93 Difference]: Finished difference Result 2012 states and 2985 transitions. [2024-10-14 05:22:51,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-14 05:22:51,955 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 15.055555555555555) internal successors, (271), 18 states have internal predecessors, (271), 1 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 281 [2024-10-14 05:22:51,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 05:22:51,959 INFO L225 Difference]: With dead ends: 2012 [2024-10-14 05:22:51,959 INFO L226 Difference]: Without dead ends: 1077 [2024-10-14 05:22:51,961 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 579 GetRequests, 561 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=88, Invalid=292, Unknown=0, NotChecked=0, Total=380 [2024-10-14 05:22:51,961 INFO L432 NwaCegarLoop]: 1133 mSDtfsCounter, 112 mSDsluCounter, 12370 mSDsCounter, 0 mSdLazyCounter, 301 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 13503 SdHoareTripleChecker+Invalid, 302 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 301 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 05:22:51,962 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [112 Valid, 13503 Invalid, 302 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 301 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 05:22:51,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1077 states. [2024-10-14 05:22:51,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1077 to 1077. [2024-10-14 05:22:51,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1077 states, 1065 states have (on average 1.4732394366197183) internal successors, (1569), 1065 states have internal predecessors, (1569), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-10-14 05:22:51,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1077 states to 1077 states and 1589 transitions. [2024-10-14 05:22:51,984 INFO L78 Accepts]: Start accepts. Automaton has 1077 states and 1589 transitions. Word has length 281 [2024-10-14 05:22:51,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 05:22:51,985 INFO L471 AbstractCegarLoop]: Abstraction has 1077 states and 1589 transitions. [2024-10-14 05:22:51,985 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 15.055555555555555) internal successors, (271), 18 states have internal predecessors, (271), 1 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2024-10-14 05:22:51,985 INFO L276 IsEmpty]: Start isEmpty. Operand 1077 states and 1589 transitions. [2024-10-14 05:22:51,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 294 [2024-10-14 05:22:51,987 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 05:22:51,988 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 05:22:52,008 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-10-14 05:22:52,188 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,SelfDestructingSolverStorable9 [2024-10-14 05:22:52,189 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 05:22:52,189 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 05:22:52,190 INFO L85 PathProgramCache]: Analyzing trace with hash 878825864, now seen corresponding path program 2 times [2024-10-14 05:22:52,190 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 05:22:52,190 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1670192890] [2024-10-14 05:22:52,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 05:22:52,191 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 05:22:52,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:22:52,971 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-10-14 05:22:52,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:22:52,974 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-10-14 05:22:52,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:22:52,977 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-10-14 05:22:52,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:22:52,979 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2024-10-14 05:22:52,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:22:52,981 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2024-10-14 05:22:52,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:22:52,985 INFO L134 CoverageAnalysis]: Checked inductivity of 224 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 224 trivial. 0 not checked. [2024-10-14 05:22:52,985 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 05:22:52,985 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1670192890] [2024-10-14 05:22:52,985 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1670192890] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 05:22:52,986 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 05:22:52,986 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-14 05:22:52,986 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1435045843] [2024-10-14 05:22:52,986 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 05:22:52,986 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 05:22:52,987 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 05:22:52,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 05:22:52,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 05:22:52,988 INFO L87 Difference]: Start difference. First operand 1077 states and 1589 transitions. Second operand has 4 states, 4 states have (on average 57.25) internal successors, (229), 4 states have internal predecessors, (229), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-10-14 05:22:53,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 05:22:53,040 INFO L93 Difference]: Finished difference Result 1081 states and 1593 transitions. [2024-10-14 05:22:53,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 05:22:53,041 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 57.25) internal successors, (229), 4 states have internal predecessors, (229), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 293 [2024-10-14 05:22:53,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 05:22:53,046 INFO L225 Difference]: With dead ends: 1081 [2024-10-14 05:22:53,046 INFO L226 Difference]: Without dead ends: 1079 [2024-10-14 05:22:53,046 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 05:22:53,047 INFO L432 NwaCegarLoop]: 1093 mSDtfsCounter, 0 mSDsluCounter, 2181 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3274 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 05:22:53,047 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3274 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 05:22:53,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1079 states. [2024-10-14 05:22:53,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1079 to 1079. [2024-10-14 05:22:53,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1079 states, 1067 states have (on average 1.472352389878163) internal successors, (1571), 1067 states have internal predecessors, (1571), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-10-14 05:22:53,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1079 states to 1079 states and 1591 transitions. [2024-10-14 05:22:53,076 INFO L78 Accepts]: Start accepts. Automaton has 1079 states and 1591 transitions. Word has length 293 [2024-10-14 05:22:53,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 05:22:53,077 INFO L471 AbstractCegarLoop]: Abstraction has 1079 states and 1591 transitions. [2024-10-14 05:22:53,077 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 57.25) internal successors, (229), 4 states have internal predecessors, (229), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-10-14 05:22:53,078 INFO L276 IsEmpty]: Start isEmpty. Operand 1079 states and 1591 transitions. [2024-10-14 05:22:53,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 295 [2024-10-14 05:22:53,080 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 05:22:53,081 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 05:22:53,081 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-14 05:22:53,081 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 05:22:53,082 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 05:22:53,082 INFO L85 PathProgramCache]: Analyzing trace with hash 1475494546, now seen corresponding path program 1 times [2024-10-14 05:22:53,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 05:22:53,082 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1305786316] [2024-10-14 05:22:53,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 05:22:53,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 05:22:53,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:22:53,637 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-10-14 05:22:53,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:22:53,640 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-10-14 05:22:53,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:22:53,643 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-10-14 05:22:53,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:22:53,648 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2024-10-14 05:22:53,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:22:53,649 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2024-10-14 05:22:53,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:22:53,651 INFO L134 CoverageAnalysis]: Checked inductivity of 224 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 224 trivial. 0 not checked. [2024-10-14 05:22:53,651 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 05:22:53,651 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1305786316] [2024-10-14 05:22:53,655 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1305786316] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 05:22:53,655 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 05:22:53,655 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-14 05:22:53,655 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [175587191] [2024-10-14 05:22:53,655 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 05:22:53,656 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 05:22:53,656 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 05:22:53,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 05:22:53,657 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 05:22:53,657 INFO L87 Difference]: Start difference. First operand 1079 states and 1591 transitions. Second operand has 4 states, 4 states have (on average 57.5) internal successors, (230), 4 states have internal predecessors, (230), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-10-14 05:22:53,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 05:22:53,713 INFO L93 Difference]: Finished difference Result 1732 states and 2559 transitions. [2024-10-14 05:22:53,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 05:22:53,714 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 57.5) internal successors, (230), 4 states have internal predecessors, (230), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 294 [2024-10-14 05:22:53,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 05:22:53,719 INFO L225 Difference]: With dead ends: 1732 [2024-10-14 05:22:53,719 INFO L226 Difference]: Without dead ends: 1081 [2024-10-14 05:22:53,720 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 05:22:53,721 INFO L432 NwaCegarLoop]: 1093 mSDtfsCounter, 0 mSDsluCounter, 2178 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3271 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 05:22:53,722 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3271 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 05:22:53,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1081 states. [2024-10-14 05:22:53,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1081 to 1081. [2024-10-14 05:22:53,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1081 states, 1069 states have (on average 1.471468662301216) internal successors, (1573), 1069 states have internal predecessors, (1573), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-10-14 05:22:53,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1081 states to 1081 states and 1593 transitions. [2024-10-14 05:22:53,752 INFO L78 Accepts]: Start accepts. Automaton has 1081 states and 1593 transitions. Word has length 294 [2024-10-14 05:22:53,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 05:22:53,752 INFO L471 AbstractCegarLoop]: Abstraction has 1081 states and 1593 transitions. [2024-10-14 05:22:53,753 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 57.5) internal successors, (230), 4 states have internal predecessors, (230), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-10-14 05:22:53,753 INFO L276 IsEmpty]: Start isEmpty. Operand 1081 states and 1593 transitions. [2024-10-14 05:22:53,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 296 [2024-10-14 05:22:53,755 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 05:22:53,755 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 05:22:53,755 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-14 05:22:53,756 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 05:22:53,756 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 05:22:53,756 INFO L85 PathProgramCache]: Analyzing trace with hash 1692693409, now seen corresponding path program 1 times [2024-10-14 05:22:53,756 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 05:22:53,757 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1965489960] [2024-10-14 05:22:53,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 05:22:53,757 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 05:22:54,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:22:54,965 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-10-14 05:22:54,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:22:54,969 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-10-14 05:22:54,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:22:54,972 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-10-14 05:22:54,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:22:54,975 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2024-10-14 05:22:54,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:22:54,978 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2024-10-14 05:22:54,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:22:54,982 INFO L134 CoverageAnalysis]: Checked inductivity of 224 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 224 trivial. 0 not checked. [2024-10-14 05:22:54,982 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 05:22:54,982 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1965489960] [2024-10-14 05:22:54,982 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1965489960] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 05:22:54,983 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 05:22:54,983 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-14 05:22:54,983 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1286343190] [2024-10-14 05:22:54,983 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 05:22:54,983 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 05:22:54,984 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 05:22:54,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 05:22:54,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-10-14 05:22:54,985 INFO L87 Difference]: Start difference. First operand 1081 states and 1593 transitions. Second operand has 6 states, 6 states have (on average 38.5) internal successors, (231), 6 states have internal predecessors, (231), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-10-14 05:22:55,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 05:22:55,883 INFO L93 Difference]: Finished difference Result 2277 states and 3365 transitions. [2024-10-14 05:22:55,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 05:22:55,884 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 38.5) internal successors, (231), 6 states have internal predecessors, (231), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 295 [2024-10-14 05:22:55,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 05:22:55,890 INFO L225 Difference]: With dead ends: 2277 [2024-10-14 05:22:55,890 INFO L226 Difference]: Without dead ends: 1624 [2024-10-14 05:22:55,892 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-10-14 05:22:55,892 INFO L432 NwaCegarLoop]: 795 mSDtfsCounter, 1747 mSDsluCounter, 2323 mSDsCounter, 0 mSdLazyCounter, 1189 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1752 SdHoareTripleChecker+Valid, 3118 SdHoareTripleChecker+Invalid, 1192 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1189 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-10-14 05:22:55,892 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1752 Valid, 3118 Invalid, 1192 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1189 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-10-14 05:22:55,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1624 states. [2024-10-14 05:22:55,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1624 to 975. [2024-10-14 05:22:55,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 975 states, 963 states have (on average 1.4724818276220146) internal successors, (1418), 963 states have internal predecessors, (1418), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-10-14 05:22:55,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 975 states to 975 states and 1438 transitions. [2024-10-14 05:22:55,927 INFO L78 Accepts]: Start accepts. Automaton has 975 states and 1438 transitions. Word has length 295 [2024-10-14 05:22:55,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 05:22:55,928 INFO L471 AbstractCegarLoop]: Abstraction has 975 states and 1438 transitions. [2024-10-14 05:22:55,928 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 38.5) internal successors, (231), 6 states have internal predecessors, (231), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-10-14 05:22:55,928 INFO L276 IsEmpty]: Start isEmpty. Operand 975 states and 1438 transitions. [2024-10-14 05:22:55,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2024-10-14 05:22:55,930 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 05:22:55,930 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 05:22:55,930 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-14 05:22:55,930 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 05:22:55,931 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 05:22:55,931 INFO L85 PathProgramCache]: Analyzing trace with hash -1522777034, now seen corresponding path program 1 times [2024-10-14 05:22:55,931 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 05:22:55,931 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [60325517] [2024-10-14 05:22:55,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 05:22:55,932 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 05:22:56,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:22:57,670 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-10-14 05:22:57,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:22:57,673 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-10-14 05:22:57,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:22:57,675 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-10-14 05:22:57,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:22:57,677 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2024-10-14 05:22:57,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:22:57,678 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2024-10-14 05:22:57,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:22:57,680 INFO L134 CoverageAnalysis]: Checked inductivity of 224 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 224 trivial. 0 not checked. [2024-10-14 05:22:57,680 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 05:22:57,680 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [60325517] [2024-10-14 05:22:57,680 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [60325517] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 05:22:57,680 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 05:22:57,681 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-14 05:22:57,681 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [369595999] [2024-10-14 05:22:57,681 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 05:22:57,681 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-14 05:22:57,682 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 05:22:57,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-14 05:22:57,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-10-14 05:22:57,683 INFO L87 Difference]: Start difference. First operand 975 states and 1438 transitions. Second operand has 8 states, 8 states have (on average 29.0) internal successors, (232), 8 states have internal predecessors, (232), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-14 05:22:57,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 05:22:57,871 INFO L93 Difference]: Finished difference Result 1741 states and 2571 transitions. [2024-10-14 05:22:57,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-14 05:22:57,872 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 29.0) internal successors, (232), 8 states have internal predecessors, (232), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 296 [2024-10-14 05:22:57,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 05:22:57,876 INFO L225 Difference]: With dead ends: 1741 [2024-10-14 05:22:57,877 INFO L226 Difference]: Without dead ends: 999 [2024-10-14 05:22:57,878 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-10-14 05:22:57,879 INFO L432 NwaCegarLoop]: 1074 mSDtfsCounter, 1024 mSDsluCounter, 5351 mSDsCounter, 0 mSdLazyCounter, 194 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1027 SdHoareTripleChecker+Valid, 6425 SdHoareTripleChecker+Invalid, 195 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 194 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 05:22:57,879 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1027 Valid, 6425 Invalid, 195 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 194 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 05:22:57,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 999 states. [2024-10-14 05:22:57,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 999 to 993. [2024-10-14 05:22:57,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 993 states, 981 states have (on average 1.471967380224261) internal successors, (1444), 981 states have internal predecessors, (1444), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-10-14 05:22:57,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 993 states to 993 states and 1464 transitions. [2024-10-14 05:22:57,901 INFO L78 Accepts]: Start accepts. Automaton has 993 states and 1464 transitions. Word has length 296 [2024-10-14 05:22:57,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 05:22:57,902 INFO L471 AbstractCegarLoop]: Abstraction has 993 states and 1464 transitions. [2024-10-14 05:22:57,902 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 29.0) internal successors, (232), 8 states have internal predecessors, (232), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-14 05:22:57,902 INFO L276 IsEmpty]: Start isEmpty. Operand 993 states and 1464 transitions. [2024-10-14 05:22:57,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 298 [2024-10-14 05:22:57,904 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 05:22:57,904 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 05:22:57,904 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-14 05:22:57,905 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 05:22:57,905 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 05:22:57,905 INFO L85 PathProgramCache]: Analyzing trace with hash -169604803, now seen corresponding path program 1 times [2024-10-14 05:22:57,905 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 05:22:57,905 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [498648435] [2024-10-14 05:22:57,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 05:22:57,906 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 05:22:58,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:22:58,415 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-10-14 05:22:58,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:22:58,418 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-10-14 05:22:58,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:22:58,419 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-10-14 05:22:58,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:22:58,422 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2024-10-14 05:22:58,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:22:58,424 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2024-10-14 05:22:58,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:22:58,427 INFO L134 CoverageAnalysis]: Checked inductivity of 224 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 224 trivial. 0 not checked. [2024-10-14 05:22:58,427 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 05:22:58,427 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [498648435] [2024-10-14 05:22:58,427 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [498648435] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 05:22:58,427 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 05:22:58,427 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-14 05:22:58,428 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1104546284] [2024-10-14 05:22:58,428 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 05:22:58,429 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 05:22:58,429 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 05:22:58,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 05:22:58,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-14 05:22:58,430 INFO L87 Difference]: Start difference. First operand 993 states and 1464 transitions. Second operand has 6 states, 6 states have (on average 38.833333333333336) internal successors, (233), 6 states have internal predecessors, (233), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-14 05:22:59,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 05:22:59,041 INFO L93 Difference]: Finished difference Result 2363 states and 3491 transitions. [2024-10-14 05:22:59,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-14 05:22:59,042 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 38.833333333333336) internal successors, (233), 6 states have internal predecessors, (233), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 297 [2024-10-14 05:22:59,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 05:22:59,046 INFO L225 Difference]: With dead ends: 2363 [2024-10-14 05:22:59,046 INFO L226 Difference]: Without dead ends: 1001 [2024-10-14 05:22:59,048 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-10-14 05:22:59,048 INFO L432 NwaCegarLoop]: 1765 mSDtfsCounter, 724 mSDsluCounter, 6087 mSDsCounter, 0 mSdLazyCounter, 580 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 726 SdHoareTripleChecker+Valid, 7852 SdHoareTripleChecker+Invalid, 626 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 580 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-14 05:22:59,051 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [726 Valid, 7852 Invalid, 626 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 580 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-14 05:22:59,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1001 states. [2024-10-14 05:22:59,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1001 to 997. [2024-10-14 05:22:59,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 997 states, 985 states have (on average 1.4700507614213199) internal successors, (1448), 985 states have internal predecessors, (1448), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-10-14 05:22:59,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 997 states to 997 states and 1468 transitions. [2024-10-14 05:22:59,074 INFO L78 Accepts]: Start accepts. Automaton has 997 states and 1468 transitions. Word has length 297 [2024-10-14 05:22:59,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 05:22:59,074 INFO L471 AbstractCegarLoop]: Abstraction has 997 states and 1468 transitions. [2024-10-14 05:22:59,074 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 38.833333333333336) internal successors, (233), 6 states have internal predecessors, (233), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-14 05:22:59,074 INFO L276 IsEmpty]: Start isEmpty. Operand 997 states and 1468 transitions. [2024-10-14 05:22:59,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 298 [2024-10-14 05:22:59,076 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 05:22:59,076 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 05:22:59,077 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-14 05:22:59,077 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 05:22:59,077 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 05:22:59,077 INFO L85 PathProgramCache]: Analyzing trace with hash -780200302, now seen corresponding path program 1 times [2024-10-14 05:22:59,077 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 05:22:59,077 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [241874429] [2024-10-14 05:22:59,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 05:22:59,078 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 05:22:59,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:22:59,709 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-10-14 05:22:59,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:22:59,711 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-10-14 05:22:59,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:22:59,712 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-10-14 05:22:59,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:22:59,713 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2024-10-14 05:22:59,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:22:59,714 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2024-10-14 05:22:59,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:22:59,717 INFO L134 CoverageAnalysis]: Checked inductivity of 224 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 224 trivial. 0 not checked. [2024-10-14 05:22:59,717 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 05:22:59,717 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [241874429] [2024-10-14 05:22:59,718 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [241874429] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 05:22:59,718 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 05:22:59,718 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 05:22:59,720 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [116564707] [2024-10-14 05:22:59,720 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 05:22:59,721 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 05:22:59,722 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 05:22:59,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 05:22:59,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-14 05:22:59,723 INFO L87 Difference]: Start difference. First operand 997 states and 1468 transitions. Second operand has 5 states, 5 states have (on average 46.6) internal successors, (233), 5 states have internal predecessors, (233), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-14 05:22:59,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 05:22:59,783 INFO L93 Difference]: Finished difference Result 1770 states and 2609 transitions. [2024-10-14 05:22:59,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 05:22:59,784 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 46.6) internal successors, (233), 5 states have internal predecessors, (233), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 297 [2024-10-14 05:22:59,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 05:22:59,788 INFO L225 Difference]: With dead ends: 1770 [2024-10-14 05:22:59,788 INFO L226 Difference]: Without dead ends: 1001 [2024-10-14 05:22:59,789 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-14 05:22:59,790 INFO L432 NwaCegarLoop]: 1093 mSDtfsCounter, 0 mSDsluCounter, 2178 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3271 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 05:22:59,790 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3271 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 05:22:59,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1001 states. [2024-10-14 05:22:59,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1001 to 1001. [2024-10-14 05:22:59,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1001 states, 989 states have (on average 1.468149646107179) internal successors, (1452), 989 states have internal predecessors, (1452), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-10-14 05:22:59,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1001 states to 1001 states and 1472 transitions. [2024-10-14 05:22:59,815 INFO L78 Accepts]: Start accepts. Automaton has 1001 states and 1472 transitions. Word has length 297 [2024-10-14 05:22:59,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 05:22:59,815 INFO L471 AbstractCegarLoop]: Abstraction has 1001 states and 1472 transitions. [2024-10-14 05:22:59,816 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 46.6) internal successors, (233), 5 states have internal predecessors, (233), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-14 05:22:59,816 INFO L276 IsEmpty]: Start isEmpty. Operand 1001 states and 1472 transitions. [2024-10-14 05:22:59,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 299 [2024-10-14 05:22:59,817 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 05:22:59,818 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 05:22:59,818 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-10-14 05:22:59,818 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 05:22:59,818 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 05:22:59,819 INFO L85 PathProgramCache]: Analyzing trace with hash 2133002831, now seen corresponding path program 1 times [2024-10-14 05:22:59,819 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 05:22:59,819 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [285260264] [2024-10-14 05:22:59,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 05:22:59,819 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 05:23:00,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:23:01,160 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-10-14 05:23:01,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:23:01,163 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-10-14 05:23:01,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:23:01,165 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-10-14 05:23:01,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:23:01,166 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2024-10-14 05:23:01,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:23:01,167 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2024-10-14 05:23:01,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:23:01,170 INFO L134 CoverageAnalysis]: Checked inductivity of 224 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 224 trivial. 0 not checked. [2024-10-14 05:23:01,170 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 05:23:01,170 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [285260264] [2024-10-14 05:23:01,170 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [285260264] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 05:23:01,170 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 05:23:01,170 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 05:23:01,170 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [485299105] [2024-10-14 05:23:01,171 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 05:23:01,171 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 05:23:01,171 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 05:23:01,172 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 05:23:01,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-10-14 05:23:01,173 INFO L87 Difference]: Start difference. First operand 1001 states and 1472 transitions. Second operand has 7 states, 7 states have (on average 33.42857142857143) internal successors, (234), 7 states have internal predecessors, (234), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-14 05:23:01,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 05:23:01,317 INFO L93 Difference]: Finished difference Result 1790 states and 2634 transitions. [2024-10-14 05:23:01,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-14 05:23:01,318 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 33.42857142857143) internal successors, (234), 7 states have internal predecessors, (234), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 298 [2024-10-14 05:23:01,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 05:23:01,322 INFO L225 Difference]: With dead ends: 1790 [2024-10-14 05:23:01,322 INFO L226 Difference]: Without dead ends: 1027 [2024-10-14 05:23:01,323 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-10-14 05:23:01,324 INFO L432 NwaCegarLoop]: 1075 mSDtfsCounter, 1018 mSDsluCounter, 4269 mSDsCounter, 0 mSdLazyCounter, 157 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1021 SdHoareTripleChecker+Valid, 5344 SdHoareTripleChecker+Invalid, 158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 157 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 05:23:01,324 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1021 Valid, 5344 Invalid, 158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 157 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 05:23:01,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1027 states. [2024-10-14 05:23:01,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1027 to 1007. [2024-10-14 05:23:01,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1007 states, 995 states have (on average 1.4673366834170853) internal successors, (1460), 995 states have internal predecessors, (1460), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-10-14 05:23:01,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1007 states to 1007 states and 1480 transitions. [2024-10-14 05:23:01,347 INFO L78 Accepts]: Start accepts. Automaton has 1007 states and 1480 transitions. Word has length 298 [2024-10-14 05:23:01,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 05:23:01,348 INFO L471 AbstractCegarLoop]: Abstraction has 1007 states and 1480 transitions. [2024-10-14 05:23:01,348 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 33.42857142857143) internal successors, (234), 7 states have internal predecessors, (234), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-14 05:23:01,348 INFO L276 IsEmpty]: Start isEmpty. Operand 1007 states and 1480 transitions. [2024-10-14 05:23:01,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 299 [2024-10-14 05:23:01,350 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 05:23:01,350 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 05:23:01,350 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-10-14 05:23:01,350 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 05:23:01,351 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 05:23:01,351 INFO L85 PathProgramCache]: Analyzing trace with hash 230514639, now seen corresponding path program 1 times [2024-10-14 05:23:01,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 05:23:01,351 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1098510561] [2024-10-14 05:23:01,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 05:23:01,352 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 05:23:01,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:23:02,157 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-10-14 05:23:02,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:23:02,164 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-10-14 05:23:02,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:23:02,167 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-10-14 05:23:02,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:23:02,169 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2024-10-14 05:23:02,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:23:02,170 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2024-10-14 05:23:02,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:23:02,172 INFO L134 CoverageAnalysis]: Checked inductivity of 224 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 224 trivial. 0 not checked. [2024-10-14 05:23:02,172 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 05:23:02,173 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1098510561] [2024-10-14 05:23:02,173 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1098510561] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 05:23:02,173 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 05:23:02,173 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-14 05:23:02,173 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1814487144] [2024-10-14 05:23:02,173 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 05:23:02,174 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 05:23:02,174 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 05:23:02,175 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 05:23:02,176 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 05:23:02,176 INFO L87 Difference]: Start difference. First operand 1007 states and 1480 transitions. Second operand has 4 states, 4 states have (on average 58.5) internal successors, (234), 4 states have internal predecessors, (234), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-14 05:23:02,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 05:23:02,252 INFO L93 Difference]: Finished difference Result 1761 states and 2593 transitions. [2024-10-14 05:23:02,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 05:23:02,253 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 58.5) internal successors, (234), 4 states have internal predecessors, (234), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 298 [2024-10-14 05:23:02,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 05:23:02,256 INFO L225 Difference]: With dead ends: 1761 [2024-10-14 05:23:02,257 INFO L226 Difference]: Without dead ends: 1003 [2024-10-14 05:23:02,258 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-14 05:23:02,259 INFO L432 NwaCegarLoop]: 1079 mSDtfsCounter, 1006 mSDsluCounter, 1086 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1009 SdHoareTripleChecker+Valid, 2165 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 05:23:02,259 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1009 Valid, 2165 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 05:23:02,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1003 states. [2024-10-14 05:23:02,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1003 to 1003. [2024-10-14 05:23:02,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1003 states, 991 states have (on average 1.467204843592331) internal successors, (1454), 991 states have internal predecessors, (1454), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-10-14 05:23:02,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1003 states to 1003 states and 1474 transitions. [2024-10-14 05:23:02,293 INFO L78 Accepts]: Start accepts. Automaton has 1003 states and 1474 transitions. Word has length 298 [2024-10-14 05:23:02,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 05:23:02,297 INFO L471 AbstractCegarLoop]: Abstraction has 1003 states and 1474 transitions. [2024-10-14 05:23:02,297 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 58.5) internal successors, (234), 4 states have internal predecessors, (234), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-14 05:23:02,297 INFO L276 IsEmpty]: Start isEmpty. Operand 1003 states and 1474 transitions. [2024-10-14 05:23:02,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 299 [2024-10-14 05:23:02,300 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 05:23:02,300 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 05:23:02,300 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-10-14 05:23:02,300 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 05:23:02,301 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 05:23:02,301 INFO L85 PathProgramCache]: Analyzing trace with hash 1945031859, now seen corresponding path program 1 times [2024-10-14 05:23:02,301 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 05:23:02,301 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1367120905] [2024-10-14 05:23:02,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 05:23:02,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 05:23:02,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:23:03,198 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-10-14 05:23:03,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:23:03,201 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-10-14 05:23:03,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:23:03,203 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-10-14 05:23:03,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:23:03,205 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2024-10-14 05:23:03,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:23:03,206 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2024-10-14 05:23:03,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:23:03,208 INFO L134 CoverageAnalysis]: Checked inductivity of 224 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 224 trivial. 0 not checked. [2024-10-14 05:23:03,208 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 05:23:03,209 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1367120905] [2024-10-14 05:23:03,209 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1367120905] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 05:23:03,209 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 05:23:03,209 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 05:23:03,209 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [775011553] [2024-10-14 05:23:03,209 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 05:23:03,210 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 05:23:03,210 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 05:23:03,211 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 05:23:03,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-14 05:23:03,211 INFO L87 Difference]: Start difference. First operand 1003 states and 1474 transitions. Second operand has 7 states, 7 states have (on average 33.42857142857143) internal successors, (234), 7 states have internal predecessors, (234), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-14 05:23:03,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 05:23:03,922 INFO L93 Difference]: Finished difference Result 2310 states and 3401 transitions. [2024-10-14 05:23:03,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-14 05:23:03,923 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 33.42857142857143) internal successors, (234), 7 states have internal predecessors, (234), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 298 [2024-10-14 05:23:03,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 05:23:03,927 INFO L225 Difference]: With dead ends: 2310 [2024-10-14 05:23:03,927 INFO L226 Difference]: Without dead ends: 1011 [2024-10-14 05:23:03,929 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182 [2024-10-14 05:23:03,930 INFO L432 NwaCegarLoop]: 1775 mSDtfsCounter, 1732 mSDsluCounter, 6124 mSDsCounter, 0 mSdLazyCounter, 681 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1733 SdHoareTripleChecker+Valid, 7899 SdHoareTripleChecker+Invalid, 732 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 681 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-14 05:23:03,930 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1733 Valid, 7899 Invalid, 732 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 681 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-14 05:23:03,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1011 states. [2024-10-14 05:23:03,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1011 to 1007. [2024-10-14 05:23:03,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1007 states, 995 states have (on average 1.463316582914573) internal successors, (1456), 995 states have internal predecessors, (1456), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-10-14 05:23:03,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1007 states to 1007 states and 1476 transitions. [2024-10-14 05:23:03,952 INFO L78 Accepts]: Start accepts. Automaton has 1007 states and 1476 transitions. Word has length 298 [2024-10-14 05:23:03,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 05:23:03,953 INFO L471 AbstractCegarLoop]: Abstraction has 1007 states and 1476 transitions. [2024-10-14 05:23:03,953 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 33.42857142857143) internal successors, (234), 7 states have internal predecessors, (234), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-14 05:23:03,953 INFO L276 IsEmpty]: Start isEmpty. Operand 1007 states and 1476 transitions. [2024-10-14 05:23:03,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 300 [2024-10-14 05:23:03,955 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 05:23:03,955 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 05:23:03,955 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-10-14 05:23:03,956 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 05:23:03,956 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 05:23:03,956 INFO L85 PathProgramCache]: Analyzing trace with hash 1100833378, now seen corresponding path program 1 times [2024-10-14 05:23:03,956 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 05:23:03,956 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [914586848] [2024-10-14 05:23:03,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 05:23:03,957 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 05:23:04,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:23:05,228 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-10-14 05:23:05,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:23:05,231 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-10-14 05:23:05,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:23:05,232 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-10-14 05:23:05,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:23:05,234 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2024-10-14 05:23:05,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:23:05,236 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2024-10-14 05:23:05,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:23:05,238 INFO L134 CoverageAnalysis]: Checked inductivity of 224 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 224 trivial. 0 not checked. [2024-10-14 05:23:05,238 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 05:23:05,238 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [914586848] [2024-10-14 05:23:05,238 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [914586848] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 05:23:05,238 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 05:23:05,238 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-14 05:23:05,238 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2032506973] [2024-10-14 05:23:05,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 05:23:05,239 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-14 05:23:05,239 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 05:23:05,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-14 05:23:05,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-10-14 05:23:05,241 INFO L87 Difference]: Start difference. First operand 1007 states and 1476 transitions. Second operand has 8 states, 8 states have (on average 29.375) internal successors, (235), 8 states have internal predecessors, (235), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-14 05:23:05,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 05:23:05,432 INFO L93 Difference]: Finished difference Result 1753 states and 2572 transitions. [2024-10-14 05:23:05,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-14 05:23:05,435 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 29.375) internal successors, (235), 8 states have internal predecessors, (235), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 299 [2024-10-14 05:23:05,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 05:23:05,443 INFO L225 Difference]: With dead ends: 1753 [2024-10-14 05:23:05,443 INFO L226 Difference]: Without dead ends: 1031 [2024-10-14 05:23:05,444 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-10-14 05:23:05,444 INFO L432 NwaCegarLoop]: 1072 mSDtfsCounter, 1003 mSDsluCounter, 5333 mSDsCounter, 0 mSdLazyCounter, 194 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1005 SdHoareTripleChecker+Valid, 6405 SdHoareTripleChecker+Invalid, 195 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 194 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 05:23:05,444 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1005 Valid, 6405 Invalid, 195 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 194 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 05:23:05,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1031 states. [2024-10-14 05:23:05,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1031 to 1025. [2024-10-14 05:23:05,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1025 states, 1013 states have (on average 1.4629812438302072) internal successors, (1482), 1013 states have internal predecessors, (1482), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-10-14 05:23:05,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1025 states to 1025 states and 1502 transitions. [2024-10-14 05:23:05,467 INFO L78 Accepts]: Start accepts. Automaton has 1025 states and 1502 transitions. Word has length 299 [2024-10-14 05:23:05,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 05:23:05,468 INFO L471 AbstractCegarLoop]: Abstraction has 1025 states and 1502 transitions. [2024-10-14 05:23:05,468 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 29.375) internal successors, (235), 8 states have internal predecessors, (235), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-14 05:23:05,468 INFO L276 IsEmpty]: Start isEmpty. Operand 1025 states and 1502 transitions. [2024-10-14 05:23:05,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 301 [2024-10-14 05:23:05,470 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 05:23:05,470 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 05:23:05,470 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-10-14 05:23:05,471 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 05:23:05,471 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 05:23:05,471 INFO L85 PathProgramCache]: Analyzing trace with hash -892907450, now seen corresponding path program 1 times [2024-10-14 05:23:05,471 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 05:23:05,471 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2070201106] [2024-10-14 05:23:05,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 05:23:05,472 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 05:23:05,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:23:05,898 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-10-14 05:23:05,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:23:05,900 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-10-14 05:23:05,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:23:05,901 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-10-14 05:23:05,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:23:05,902 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2024-10-14 05:23:05,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:23:05,904 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2024-10-14 05:23:05,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:23:05,906 INFO L134 CoverageAnalysis]: Checked inductivity of 224 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 224 trivial. 0 not checked. [2024-10-14 05:23:05,906 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 05:23:05,906 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2070201106] [2024-10-14 05:23:05,906 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2070201106] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 05:23:05,907 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 05:23:05,907 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-14 05:23:05,907 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2055708023] [2024-10-14 05:23:05,907 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 05:23:05,907 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 05:23:05,908 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 05:23:05,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 05:23:05,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-14 05:23:05,909 INFO L87 Difference]: Start difference. First operand 1025 states and 1502 transitions. Second operand has 6 states, 6 states have (on average 39.333333333333336) internal successors, (236), 6 states have internal predecessors, (236), 3 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2024-10-14 05:23:06,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 05:23:06,409 INFO L93 Difference]: Finished difference Result 2360 states and 3464 transitions. [2024-10-14 05:23:06,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-14 05:23:06,410 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 39.333333333333336) internal successors, (236), 6 states have internal predecessors, (236), 3 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) Word has length 300 [2024-10-14 05:23:06,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 05:23:06,414 INFO L225 Difference]: With dead ends: 2360 [2024-10-14 05:23:06,414 INFO L226 Difference]: Without dead ends: 1033 [2024-10-14 05:23:06,416 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-10-14 05:23:06,417 INFO L432 NwaCegarLoop]: 1801 mSDtfsCounter, 761 mSDsluCounter, 6193 mSDsCounter, 0 mSdLazyCounter, 580 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 765 SdHoareTripleChecker+Valid, 7994 SdHoareTripleChecker+Invalid, 626 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 580 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-14 05:23:06,417 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [765 Valid, 7994 Invalid, 626 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 580 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-14 05:23:06,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1033 states. [2024-10-14 05:23:06,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1033 to 1029. [2024-10-14 05:23:06,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1029 states, 1017 states have (on average 1.4611602753195674) internal successors, (1486), 1017 states have internal predecessors, (1486), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-10-14 05:23:06,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1029 states to 1029 states and 1506 transitions. [2024-10-14 05:23:06,440 INFO L78 Accepts]: Start accepts. Automaton has 1029 states and 1506 transitions. Word has length 300 [2024-10-14 05:23:06,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 05:23:06,440 INFO L471 AbstractCegarLoop]: Abstraction has 1029 states and 1506 transitions. [2024-10-14 05:23:06,440 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 39.333333333333336) internal successors, (236), 6 states have internal predecessors, (236), 3 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2024-10-14 05:23:06,441 INFO L276 IsEmpty]: Start isEmpty. Operand 1029 states and 1506 transitions. [2024-10-14 05:23:06,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 301 [2024-10-14 05:23:06,442 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 05:23:06,443 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 05:23:06,443 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-10-14 05:23:06,443 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 05:23:06,443 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 05:23:06,443 INFO L85 PathProgramCache]: Analyzing trace with hash 573660817, now seen corresponding path program 1 times [2024-10-14 05:23:06,444 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 05:23:06,444 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [976442547] [2024-10-14 05:23:06,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 05:23:06,444 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 05:23:06,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:23:07,540 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-10-14 05:23:07,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:23:07,542 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-10-14 05:23:07,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:23:07,545 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-10-14 05:23:07,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:23:07,546 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2024-10-14 05:23:07,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:23:07,547 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2024-10-14 05:23:07,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:23:07,548 INFO L134 CoverageAnalysis]: Checked inductivity of 224 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 224 trivial. 0 not checked. [2024-10-14 05:23:07,549 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 05:23:07,549 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [976442547] [2024-10-14 05:23:07,549 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [976442547] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 05:23:07,549 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 05:23:07,549 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 05:23:07,550 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1411624637] [2024-10-14 05:23:07,550 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 05:23:07,550 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 05:23:07,551 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 05:23:07,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 05:23:07,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-10-14 05:23:07,552 INFO L87 Difference]: Start difference. First operand 1029 states and 1506 transitions. Second operand has 7 states, 7 states have (on average 33.714285714285715) internal successors, (236), 7 states have internal predecessors, (236), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-14 05:23:07,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 05:23:07,706 INFO L93 Difference]: Finished difference Result 1796 states and 2629 transitions. [2024-10-14 05:23:07,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-14 05:23:07,707 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 33.714285714285715) internal successors, (236), 7 states have internal predecessors, (236), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 300 [2024-10-14 05:23:07,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 05:23:07,710 INFO L225 Difference]: With dead ends: 1796 [2024-10-14 05:23:07,710 INFO L226 Difference]: Without dead ends: 1055 [2024-10-14 05:23:07,712 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-10-14 05:23:07,712 INFO L432 NwaCegarLoop]: 1073 mSDtfsCounter, 996 mSDsluCounter, 4253 mSDsCounter, 0 mSdLazyCounter, 157 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 998 SdHoareTripleChecker+Valid, 5326 SdHoareTripleChecker+Invalid, 158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 157 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 05:23:07,713 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [998 Valid, 5326 Invalid, 158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 157 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 05:23:07,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1055 states. [2024-10-14 05:23:07,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1055 to 1035. [2024-10-14 05:23:07,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1035 states, 1023 states have (on average 1.4604105571847508) internal successors, (1494), 1023 states have internal predecessors, (1494), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-10-14 05:23:07,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1035 states to 1035 states and 1514 transitions. [2024-10-14 05:23:07,733 INFO L78 Accepts]: Start accepts. Automaton has 1035 states and 1514 transitions. Word has length 300 [2024-10-14 05:23:07,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 05:23:07,734 INFO L471 AbstractCegarLoop]: Abstraction has 1035 states and 1514 transitions. [2024-10-14 05:23:07,734 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 33.714285714285715) internal successors, (236), 7 states have internal predecessors, (236), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-14 05:23:07,734 INFO L276 IsEmpty]: Start isEmpty. Operand 1035 states and 1514 transitions. [2024-10-14 05:23:07,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 302 [2024-10-14 05:23:07,736 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 05:23:07,738 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 05:23:07,738 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-10-14 05:23:07,738 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 05:23:07,739 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 05:23:07,739 INFO L85 PathProgramCache]: Analyzing trace with hash 1830108133, now seen corresponding path program 1 times [2024-10-14 05:23:07,739 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 05:23:07,739 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [851873200] [2024-10-14 05:23:07,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 05:23:07,739 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 05:23:07,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:23:09,020 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-10-14 05:23:09,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:23:09,026 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-10-14 05:23:09,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:23:09,029 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-10-14 05:23:09,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:23:09,033 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2024-10-14 05:23:09,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:23:09,036 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2024-10-14 05:23:09,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:23:09,041 INFO L134 CoverageAnalysis]: Checked inductivity of 224 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 224 trivial. 0 not checked. [2024-10-14 05:23:09,042 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 05:23:09,042 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [851873200] [2024-10-14 05:23:09,042 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [851873200] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 05:23:09,042 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 05:23:09,042 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-14 05:23:09,043 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1268611252] [2024-10-14 05:23:09,043 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 05:23:09,043 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 05:23:09,043 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 05:23:09,044 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 05:23:09,044 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-14 05:23:09,045 INFO L87 Difference]: Start difference. First operand 1035 states and 1514 transitions. Second operand has 6 states, 6 states have (on average 39.5) internal successors, (237), 6 states have internal predecessors, (237), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-10-14 05:23:09,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 05:23:09,208 INFO L93 Difference]: Finished difference Result 1889 states and 2773 transitions. [2024-10-14 05:23:09,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 05:23:09,209 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 39.5) internal successors, (237), 6 states have internal predecessors, (237), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 301 [2024-10-14 05:23:09,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 05:23:09,214 INFO L225 Difference]: With dead ends: 1889 [2024-10-14 05:23:09,214 INFO L226 Difference]: Without dead ends: 1206 [2024-10-14 05:23:09,216 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-10-14 05:23:09,216 INFO L432 NwaCegarLoop]: 1076 mSDtfsCounter, 1635 mSDsluCounter, 3224 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1640 SdHoareTripleChecker+Valid, 4300 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 05:23:09,217 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1640 Valid, 4300 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 05:23:09,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1206 states. [2024-10-14 05:23:09,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1206 to 1206. [2024-10-14 05:23:09,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1206 states, 1194 states have (on average 1.463149078726968) internal successors, (1747), 1194 states have internal predecessors, (1747), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-10-14 05:23:09,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1206 states to 1206 states and 1767 transitions. [2024-10-14 05:23:09,244 INFO L78 Accepts]: Start accepts. Automaton has 1206 states and 1767 transitions. Word has length 301 [2024-10-14 05:23:09,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 05:23:09,245 INFO L471 AbstractCegarLoop]: Abstraction has 1206 states and 1767 transitions. [2024-10-14 05:23:09,245 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 39.5) internal successors, (237), 6 states have internal predecessors, (237), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-10-14 05:23:09,245 INFO L276 IsEmpty]: Start isEmpty. Operand 1206 states and 1767 transitions. [2024-10-14 05:23:09,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 664 [2024-10-14 05:23:09,250 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 05:23:09,252 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 8, 8, 8, 8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 05:23:09,252 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-10-14 05:23:09,252 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 05:23:09,253 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 05:23:09,253 INFO L85 PathProgramCache]: Analyzing trace with hash -329435553, now seen corresponding path program 1 times [2024-10-14 05:23:09,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 05:23:09,254 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1590240602] [2024-10-14 05:23:09,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 05:23:09,254 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 05:23:09,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:23:10,135 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-10-14 05:23:10,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:23:10,137 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-10-14 05:23:10,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:23:10,138 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-10-14 05:23:10,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:23:10,139 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2024-10-14 05:23:10,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:23:10,140 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2024-10-14 05:23:10,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:23:10,142 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 466 [2024-10-14 05:23:10,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:23:10,143 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 478 [2024-10-14 05:23:10,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:23:10,144 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 506 [2024-10-14 05:23:10,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:23:10,145 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 532 [2024-10-14 05:23:10,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:23:10,146 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 543 [2024-10-14 05:23:10,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:23:10,148 INFO L134 CoverageAnalysis]: Checked inductivity of 547 backedges. 183 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-10-14 05:23:10,148 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 05:23:10,148 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1590240602] [2024-10-14 05:23:10,148 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1590240602] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 05:23:10,148 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 05:23:10,148 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 05:23:10,148 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1836677705] [2024-10-14 05:23:10,149 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 05:23:10,149 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 05:23:10,150 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 05:23:10,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 05:23:10,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 05:23:10,151 INFO L87 Difference]: Start difference. First operand 1206 states and 1767 transitions. Second operand has 3 states, 3 states have (on average 191.33333333333334) internal successors, (574), 3 states have internal predecessors, (574), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-10-14 05:23:10,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 05:23:10,187 INFO L93 Difference]: Finished difference Result 1890 states and 2774 transitions. [2024-10-14 05:23:10,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 05:23:10,187 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 191.33333333333334) internal successors, (574), 3 states have internal predecessors, (574), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 663 [2024-10-14 05:23:10,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 05:23:10,192 INFO L225 Difference]: With dead ends: 1890 [2024-10-14 05:23:10,192 INFO L226 Difference]: Without dead ends: 1207 [2024-10-14 05:23:10,193 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 05:23:10,194 INFO L432 NwaCegarLoop]: 1093 mSDtfsCounter, 0 mSDsluCounter, 1090 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2183 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 05:23:10,194 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2183 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 05:23:10,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1207 states. [2024-10-14 05:23:10,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1207 to 1207. [2024-10-14 05:23:10,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1207 states, 1195 states have (on average 1.4627615062761505) internal successors, (1748), 1195 states have internal predecessors, (1748), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-10-14 05:23:10,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1207 states to 1207 states and 1768 transitions. [2024-10-14 05:23:10,216 INFO L78 Accepts]: Start accepts. Automaton has 1207 states and 1768 transitions. Word has length 663 [2024-10-14 05:23:10,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 05:23:10,216 INFO L471 AbstractCegarLoop]: Abstraction has 1207 states and 1768 transitions. [2024-10-14 05:23:10,217 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 191.33333333333334) internal successors, (574), 3 states have internal predecessors, (574), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-10-14 05:23:10,217 INFO L276 IsEmpty]: Start isEmpty. Operand 1207 states and 1768 transitions. [2024-10-14 05:23:10,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 665 [2024-10-14 05:23:10,222 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 05:23:10,222 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 8, 8, 8, 8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 05:23:10,222 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-10-14 05:23:10,222 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 05:23:10,223 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 05:23:10,223 INFO L85 PathProgramCache]: Analyzing trace with hash 2022801677, now seen corresponding path program 1 times [2024-10-14 05:23:10,223 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 05:23:10,223 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [248603445] [2024-10-14 05:23:10,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 05:23:10,224 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 05:23:10,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:23:11,079 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-10-14 05:23:11,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:23:11,081 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-10-14 05:23:11,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:23:11,082 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-10-14 05:23:11,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:23:11,084 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2024-10-14 05:23:11,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:23:11,085 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2024-10-14 05:23:11,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:23:11,086 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 467 [2024-10-14 05:23:11,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:23:11,089 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 479 [2024-10-14 05:23:11,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:23:11,092 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 507 [2024-10-14 05:23:11,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:23:11,093 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 533 [2024-10-14 05:23:11,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:23:11,096 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 544 [2024-10-14 05:23:11,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:23:11,098 INFO L134 CoverageAnalysis]: Checked inductivity of 548 backedges. 183 proven. 1 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-10-14 05:23:11,098 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 05:23:11,099 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [248603445] [2024-10-14 05:23:11,099 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [248603445] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 05:23:11,099 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [887136024] [2024-10-14 05:23:11,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 05:23:11,099 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 05:23:11,099 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 05:23:11,101 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) [2024-10-14 05:23:11,103 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-10-14 05:23:12,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:23:12,158 INFO L255 TraceCheckSpWp]: Trace formula consists of 3332 conjuncts, 27 conjuncts are in the unsatisfiable core [2024-10-14 05:23:12,172 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 05:23:13,038 INFO L134 CoverageAnalysis]: Checked inductivity of 548 backedges. 283 proven. 92 refuted. 0 times theorem prover too weak. 173 trivial. 0 not checked. [2024-10-14 05:23:13,038 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 05:23:13,679 INFO L134 CoverageAnalysis]: Checked inductivity of 548 backedges. 183 proven. 0 refuted. 0 times theorem prover too weak. 365 trivial. 0 not checked. [2024-10-14 05:23:13,680 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [887136024] provided 1 perfect and 1 imperfect interpolant sequences [2024-10-14 05:23:13,680 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-10-14 05:23:13,680 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4, 14] total 19 [2024-10-14 05:23:13,681 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [241161408] [2024-10-14 05:23:13,681 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 05:23:13,681 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 05:23:13,682 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 05:23:13,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 05:23:13,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=282, Unknown=0, NotChecked=0, Total=342 [2024-10-14 05:23:13,683 INFO L87 Difference]: Start difference. First operand 1207 states and 1768 transitions. Second operand has 5 states, 5 states have (on average 115.0) internal successors, (575), 5 states have internal predecessors, (575), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-10-14 05:23:13,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 05:23:13,937 INFO L93 Difference]: Finished difference Result 1891 states and 2774 transitions. [2024-10-14 05:23:13,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 05:23:13,938 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 115.0) internal successors, (575), 5 states have internal predecessors, (575), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 664 [2024-10-14 05:23:13,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 05:23:13,944 INFO L225 Difference]: With dead ends: 1891 [2024-10-14 05:23:13,944 INFO L226 Difference]: Without dead ends: 1207 [2024-10-14 05:23:13,946 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1351 GetRequests, 1333 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=65, Invalid=315, Unknown=0, NotChecked=0, Total=380 [2024-10-14 05:23:13,946 INFO L432 NwaCegarLoop]: 996 mSDtfsCounter, 1839 mSDsluCounter, 998 mSDsCounter, 0 mSdLazyCounter, 209 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1844 SdHoareTripleChecker+Valid, 1994 SdHoareTripleChecker+Invalid, 216 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 209 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-14 05:23:13,946 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1844 Valid, 1994 Invalid, 216 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 209 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-14 05:23:13,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1207 states. [2024-10-14 05:23:13,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1207 to 1207. [2024-10-14 05:23:13,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1207 states, 1195 states have (on average 1.4619246861924686) internal successors, (1747), 1195 states have internal predecessors, (1747), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-10-14 05:23:13,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1207 states to 1207 states and 1767 transitions. [2024-10-14 05:23:13,971 INFO L78 Accepts]: Start accepts. Automaton has 1207 states and 1767 transitions. Word has length 664 [2024-10-14 05:23:13,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 05:23:13,972 INFO L471 AbstractCegarLoop]: Abstraction has 1207 states and 1767 transitions. [2024-10-14 05:23:13,972 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 115.0) internal successors, (575), 5 states have internal predecessors, (575), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-10-14 05:23:13,972 INFO L276 IsEmpty]: Start isEmpty. Operand 1207 states and 1767 transitions. [2024-10-14 05:23:13,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 666 [2024-10-14 05:23:13,977 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 05:23:13,978 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 8, 8, 8, 8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 05:23:14,006 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-10-14 05:23:14,178 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,SelfDestructingSolverStorable24 [2024-10-14 05:23:14,179 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 05:23:14,179 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 05:23:14,179 INFO L85 PathProgramCache]: Analyzing trace with hash -99790495, now seen corresponding path program 1 times [2024-10-14 05:23:14,179 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 05:23:14,180 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [418260687] [2024-10-14 05:23:14,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 05:23:14,180 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 05:23:14,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:23:14,975 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-10-14 05:23:14,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:23:14,976 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-10-14 05:23:14,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:23:14,977 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-10-14 05:23:14,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:23:14,979 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2024-10-14 05:23:14,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:23:14,980 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2024-10-14 05:23:14,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:23:14,981 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 468 [2024-10-14 05:23:14,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:23:14,982 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 480 [2024-10-14 05:23:14,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:23:14,983 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 508 [2024-10-14 05:23:14,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:23:14,984 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 534 [2024-10-14 05:23:14,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:23:14,985 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 545 [2024-10-14 05:23:14,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:23:14,987 INFO L134 CoverageAnalysis]: Checked inductivity of 548 backedges. 183 proven. 1 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-10-14 05:23:14,987 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 05:23:14,987 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [418260687] [2024-10-14 05:23:14,987 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [418260687] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 05:23:14,988 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1763619219] [2024-10-14 05:23:14,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 05:23:14,988 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 05:23:14,988 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 05:23:14,990 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) [2024-10-14 05:23:14,996 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-10-14 05:23:15,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:23:15,986 INFO L255 TraceCheckSpWp]: Trace formula consists of 3335 conjuncts, 27 conjuncts are in the unsatisfiable core [2024-10-14 05:23:15,997 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 05:23:16,794 INFO L134 CoverageAnalysis]: Checked inductivity of 548 backedges. 283 proven. 92 refuted. 0 times theorem prover too weak. 173 trivial. 0 not checked. [2024-10-14 05:23:16,795 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 05:23:17,518 INFO L134 CoverageAnalysis]: Checked inductivity of 548 backedges. 183 proven. 0 refuted. 0 times theorem prover too weak. 365 trivial. 0 not checked. [2024-10-14 05:23:17,518 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1763619219] provided 1 perfect and 1 imperfect interpolant sequences [2024-10-14 05:23:17,519 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-10-14 05:23:17,519 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4, 14] total 19 [2024-10-14 05:23:17,519 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1592622241] [2024-10-14 05:23:17,519 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 05:23:17,520 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 05:23:17,520 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 05:23:17,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 05:23:17,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=282, Unknown=0, NotChecked=0, Total=342 [2024-10-14 05:23:17,521 INFO L87 Difference]: Start difference. First operand 1207 states and 1767 transitions. Second operand has 5 states, 5 states have (on average 115.2) internal successors, (576), 5 states have internal predecessors, (576), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-10-14 05:23:17,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 05:23:17,683 INFO L93 Difference]: Finished difference Result 1891 states and 2772 transitions. [2024-10-14 05:23:17,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 05:23:17,684 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 115.2) internal successors, (576), 5 states have internal predecessors, (576), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 665 [2024-10-14 05:23:17,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 05:23:17,688 INFO L225 Difference]: With dead ends: 1891 [2024-10-14 05:23:17,688 INFO L226 Difference]: Without dead ends: 1207 [2024-10-14 05:23:17,689 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1353 GetRequests, 1335 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=65, Invalid=315, Unknown=0, NotChecked=0, Total=380 [2024-10-14 05:23:17,690 INFO L432 NwaCegarLoop]: 996 mSDtfsCounter, 1815 mSDsluCounter, 998 mSDsCounter, 0 mSdLazyCounter, 207 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1820 SdHoareTripleChecker+Valid, 1994 SdHoareTripleChecker+Invalid, 214 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 207 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 05:23:17,690 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1820 Valid, 1994 Invalid, 214 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 207 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 05:23:17,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1207 states. [2024-10-14 05:23:17,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1207 to 1207. [2024-10-14 05:23:17,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1207 states, 1195 states have (on average 1.4610878661087867) internal successors, (1746), 1195 states have internal predecessors, (1746), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-10-14 05:23:17,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1207 states to 1207 states and 1766 transitions. [2024-10-14 05:23:17,716 INFO L78 Accepts]: Start accepts. Automaton has 1207 states and 1766 transitions. Word has length 665 [2024-10-14 05:23:17,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 05:23:17,717 INFO L471 AbstractCegarLoop]: Abstraction has 1207 states and 1766 transitions. [2024-10-14 05:23:17,718 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 115.2) internal successors, (576), 5 states have internal predecessors, (576), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-10-14 05:23:17,718 INFO L276 IsEmpty]: Start isEmpty. Operand 1207 states and 1766 transitions. [2024-10-14 05:23:17,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 667 [2024-10-14 05:23:17,723 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 05:23:17,723 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 8, 8, 8, 8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 05:23:17,751 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-10-14 05:23:17,924 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,SelfDestructingSolverStorable25 [2024-10-14 05:23:17,924 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 05:23:17,925 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 05:23:17,925 INFO L85 PathProgramCache]: Analyzing trace with hash -874118102, now seen corresponding path program 1 times [2024-10-14 05:23:17,925 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 05:23:17,925 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [919426092] [2024-10-14 05:23:17,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 05:23:17,925 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 05:23:18,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:23:18,782 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-10-14 05:23:18,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:23:18,783 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-10-14 05:23:18,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:23:18,784 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-10-14 05:23:18,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:23:18,785 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2024-10-14 05:23:18,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:23:18,786 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2024-10-14 05:23:18,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:23:18,787 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 469 [2024-10-14 05:23:18,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:23:18,788 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 481 [2024-10-14 05:23:18,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:23:18,790 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 509 [2024-10-14 05:23:18,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:23:18,791 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2024-10-14 05:23:18,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:23:18,792 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 546 [2024-10-14 05:23:18,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:23:18,794 INFO L134 CoverageAnalysis]: Checked inductivity of 548 backedges. 183 proven. 1 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-10-14 05:23:18,794 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 05:23:18,794 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [919426092] [2024-10-14 05:23:18,794 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [919426092] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 05:23:18,794 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1361710819] [2024-10-14 05:23:18,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 05:23:18,795 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 05:23:18,795 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 05:23:18,797 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) [2024-10-14 05:23:18,799 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-10-14 05:23:19,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:23:19,857 INFO L255 TraceCheckSpWp]: Trace formula consists of 3338 conjuncts, 27 conjuncts are in the unsatisfiable core [2024-10-14 05:23:19,869 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 05:23:20,826 INFO L134 CoverageAnalysis]: Checked inductivity of 548 backedges. 283 proven. 92 refuted. 0 times theorem prover too weak. 173 trivial. 0 not checked. [2024-10-14 05:23:20,826 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 05:23:21,528 INFO L134 CoverageAnalysis]: Checked inductivity of 548 backedges. 183 proven. 0 refuted. 0 times theorem prover too weak. 365 trivial. 0 not checked. [2024-10-14 05:23:21,528 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1361710819] provided 1 perfect and 1 imperfect interpolant sequences [2024-10-14 05:23:21,528 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-10-14 05:23:21,529 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4, 14] total 19 [2024-10-14 05:23:21,529 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1752060668] [2024-10-14 05:23:21,529 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 05:23:21,530 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 05:23:21,530 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 05:23:21,531 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 05:23:21,532 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=282, Unknown=0, NotChecked=0, Total=342 [2024-10-14 05:23:21,532 INFO L87 Difference]: Start difference. First operand 1207 states and 1766 transitions. Second operand has 5 states, 5 states have (on average 115.4) internal successors, (577), 5 states have internal predecessors, (577), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-10-14 05:23:21,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 05:23:21,725 INFO L93 Difference]: Finished difference Result 1891 states and 2770 transitions. [2024-10-14 05:23:21,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 05:23:21,726 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 115.4) internal successors, (577), 5 states have internal predecessors, (577), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 666 [2024-10-14 05:23:21,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 05:23:21,731 INFO L225 Difference]: With dead ends: 1891 [2024-10-14 05:23:21,731 INFO L226 Difference]: Without dead ends: 1207 [2024-10-14 05:23:21,733 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1355 GetRequests, 1337 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=65, Invalid=315, Unknown=0, NotChecked=0, Total=380 [2024-10-14 05:23:21,733 INFO L432 NwaCegarLoop]: 996 mSDtfsCounter, 1803 mSDsluCounter, 998 mSDsCounter, 0 mSdLazyCounter, 205 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1808 SdHoareTripleChecker+Valid, 1994 SdHoareTripleChecker+Invalid, 212 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 205 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-14 05:23:21,734 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1808 Valid, 1994 Invalid, 212 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 205 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-14 05:23:21,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1207 states. [2024-10-14 05:23:21,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1207 to 1207. [2024-10-14 05:23:21,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1207 states, 1195 states have (on average 1.4602510460251046) internal successors, (1745), 1195 states have internal predecessors, (1745), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-10-14 05:23:21,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1207 states to 1207 states and 1765 transitions. [2024-10-14 05:23:21,762 INFO L78 Accepts]: Start accepts. Automaton has 1207 states and 1765 transitions. Word has length 666 [2024-10-14 05:23:21,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 05:23:21,763 INFO L471 AbstractCegarLoop]: Abstraction has 1207 states and 1765 transitions. [2024-10-14 05:23:21,764 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 115.4) internal successors, (577), 5 states have internal predecessors, (577), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-10-14 05:23:21,764 INFO L276 IsEmpty]: Start isEmpty. Operand 1207 states and 1765 transitions. [2024-10-14 05:23:21,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 668 [2024-10-14 05:23:21,769 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 05:23:21,770 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 8, 8, 8, 8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 05:23:21,799 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-10-14 05:23:21,971 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,SelfDestructingSolverStorable26 [2024-10-14 05:23:21,971 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 05:23:21,972 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 05:23:21,972 INFO L85 PathProgramCache]: Analyzing trace with hash -644106829, now seen corresponding path program 1 times [2024-10-14 05:23:21,972 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 05:23:21,972 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [275080111] [2024-10-14 05:23:21,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 05:23:21,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 05:23:22,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:23:22,690 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-10-14 05:23:22,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:23:22,692 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-10-14 05:23:22,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:23:22,693 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-10-14 05:23:22,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:23:22,694 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2024-10-14 05:23:22,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:23:22,695 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2024-10-14 05:23:22,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:23:22,696 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 470 [2024-10-14 05:23:22,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:23:22,697 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 482 [2024-10-14 05:23:22,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:23:22,698 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 510 [2024-10-14 05:23:22,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:23:22,700 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 536 [2024-10-14 05:23:22,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:23:22,701 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 547 [2024-10-14 05:23:22,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:23:22,703 INFO L134 CoverageAnalysis]: Checked inductivity of 548 backedges. 183 proven. 1 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-10-14 05:23:22,703 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 05:23:22,703 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [275080111] [2024-10-14 05:23:22,703 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [275080111] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 05:23:22,703 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [20580399] [2024-10-14 05:23:22,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 05:23:22,704 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 05:23:22,704 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 05:23:22,706 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) [2024-10-14 05:23:22,708 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-10-14 05:23:23,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:23:23,810 INFO L255 TraceCheckSpWp]: Trace formula consists of 3341 conjuncts, 27 conjuncts are in the unsatisfiable core [2024-10-14 05:23:23,820 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 05:23:24,656 INFO L134 CoverageAnalysis]: Checked inductivity of 548 backedges. 283 proven. 92 refuted. 0 times theorem prover too weak. 173 trivial. 0 not checked. [2024-10-14 05:23:24,657 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 05:23:25,396 INFO L134 CoverageAnalysis]: Checked inductivity of 548 backedges. 183 proven. 0 refuted. 0 times theorem prover too weak. 365 trivial. 0 not checked. [2024-10-14 05:23:25,397 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [20580399] provided 1 perfect and 1 imperfect interpolant sequences [2024-10-14 05:23:25,397 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-10-14 05:23:25,398 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4, 14] total 19 [2024-10-14 05:23:25,398 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1933622143] [2024-10-14 05:23:25,398 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 05:23:25,399 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 05:23:25,399 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 05:23:25,400 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 05:23:25,400 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=282, Unknown=0, NotChecked=0, Total=342 [2024-10-14 05:23:25,401 INFO L87 Difference]: Start difference. First operand 1207 states and 1765 transitions. Second operand has 5 states, 5 states have (on average 115.6) internal successors, (578), 5 states have internal predecessors, (578), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-10-14 05:23:25,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 05:23:25,566 INFO L93 Difference]: Finished difference Result 1891 states and 2768 transitions. [2024-10-14 05:23:25,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 05:23:25,567 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 115.6) internal successors, (578), 5 states have internal predecessors, (578), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 667 [2024-10-14 05:23:25,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 05:23:25,569 INFO L225 Difference]: With dead ends: 1891 [2024-10-14 05:23:25,569 INFO L226 Difference]: Without dead ends: 1207 [2024-10-14 05:23:25,571 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1357 GetRequests, 1339 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=65, Invalid=315, Unknown=0, NotChecked=0, Total=380 [2024-10-14 05:23:25,571 INFO L432 NwaCegarLoop]: 996 mSDtfsCounter, 891 mSDsluCounter, 1006 mSDsCounter, 0 mSdLazyCounter, 203 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 896 SdHoareTripleChecker+Valid, 2002 SdHoareTripleChecker+Invalid, 204 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 203 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 05:23:25,572 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [896 Valid, 2002 Invalid, 204 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 203 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 05:23:25,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1207 states. [2024-10-14 05:23:25,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1207 to 1207. [2024-10-14 05:23:25,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1207 states, 1195 states have (on average 1.4594142259414227) internal successors, (1744), 1195 states have internal predecessors, (1744), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-10-14 05:23:25,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1207 states to 1207 states and 1764 transitions. [2024-10-14 05:23:25,595 INFO L78 Accepts]: Start accepts. Automaton has 1207 states and 1764 transitions. Word has length 667 [2024-10-14 05:23:25,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 05:23:25,596 INFO L471 AbstractCegarLoop]: Abstraction has 1207 states and 1764 transitions. [2024-10-14 05:23:25,596 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 115.6) internal successors, (578), 5 states have internal predecessors, (578), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-10-14 05:23:25,597 INFO L276 IsEmpty]: Start isEmpty. Operand 1207 states and 1764 transitions. [2024-10-14 05:23:25,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 669 [2024-10-14 05:23:25,601 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 05:23:25,602 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 8, 8, 8, 8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 05:23:25,629 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-10-14 05:23:25,803 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2024-10-14 05:23:25,804 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 05:23:25,804 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 05:23:25,804 INFO L85 PathProgramCache]: Analyzing trace with hash 673404071, now seen corresponding path program 1 times [2024-10-14 05:23:25,805 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 05:23:25,805 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [976959305] [2024-10-14 05:23:25,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 05:23:25,805 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 05:23:26,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:23:26,676 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-10-14 05:23:26,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:23:26,677 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-10-14 05:23:26,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:23:26,678 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-10-14 05:23:26,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:23:26,679 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2024-10-14 05:23:26,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:23:26,679 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2024-10-14 05:23:26,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:23:26,680 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 471 [2024-10-14 05:23:26,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:23:26,681 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 483 [2024-10-14 05:23:26,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:23:26,681 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 511 [2024-10-14 05:23:26,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:23:26,682 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 537 [2024-10-14 05:23:26,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:23:26,683 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 548 [2024-10-14 05:23:26,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:23:26,684 INFO L134 CoverageAnalysis]: Checked inductivity of 548 backedges. 183 proven. 1 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-10-14 05:23:26,684 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 05:23:26,684 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [976959305] [2024-10-14 05:23:26,685 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [976959305] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 05:23:26,685 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1857814354] [2024-10-14 05:23:26,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 05:23:26,685 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 05:23:26,685 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 05:23:26,686 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) [2024-10-14 05:23:26,687 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-10-14 05:23:27,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:23:27,850 INFO L255 TraceCheckSpWp]: Trace formula consists of 3344 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-14 05:23:27,862 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 05:23:28,587 INFO L134 CoverageAnalysis]: Checked inductivity of 548 backedges. 283 proven. 0 refuted. 0 times theorem prover too weak. 265 trivial. 0 not checked. [2024-10-14 05:23:28,587 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 05:23:28,587 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1857814354] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 05:23:28,587 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-14 05:23:28,588 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2024-10-14 05:23:28,588 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [144313227] [2024-10-14 05:23:28,588 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 05:23:28,588 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 05:23:28,588 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 05:23:28,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 05:23:28,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-14 05:23:28,589 INFO L87 Difference]: Start difference. First operand 1207 states and 1764 transitions. Second operand has 4 states, 4 states have (on average 145.5) internal successors, (582), 4 states have internal predecessors, (582), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-10-14 05:23:28,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 05:23:28,946 INFO L93 Difference]: Finished difference Result 1890 states and 2765 transitions. [2024-10-14 05:23:28,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 05:23:28,947 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 145.5) internal successors, (582), 4 states have internal predecessors, (582), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 668 [2024-10-14 05:23:28,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 05:23:28,950 INFO L225 Difference]: With dead ends: 1890 [2024-10-14 05:23:28,950 INFO L226 Difference]: Without dead ends: 1206 [2024-10-14 05:23:28,951 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 692 GetRequests, 687 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-10-14 05:23:28,952 INFO L432 NwaCegarLoop]: 788 mSDtfsCounter, 821 mSDsluCounter, 790 mSDsCounter, 0 mSdLazyCounter, 614 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 821 SdHoareTripleChecker+Valid, 1578 SdHoareTripleChecker+Invalid, 615 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 614 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-14 05:23:28,952 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [821 Valid, 1578 Invalid, 615 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 614 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-14 05:23:28,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1206 states. [2024-10-14 05:23:28,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1206 to 1206. [2024-10-14 05:23:28,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1206 states, 1194 states have (on average 1.4581239530988275) internal successors, (1741), 1194 states have internal predecessors, (1741), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-10-14 05:23:28,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1206 states to 1206 states and 1761 transitions. [2024-10-14 05:23:28,975 INFO L78 Accepts]: Start accepts. Automaton has 1206 states and 1761 transitions. Word has length 668 [2024-10-14 05:23:28,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 05:23:28,975 INFO L471 AbstractCegarLoop]: Abstraction has 1206 states and 1761 transitions. [2024-10-14 05:23:28,976 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 145.5) internal successors, (582), 4 states have internal predecessors, (582), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-10-14 05:23:28,976 INFO L276 IsEmpty]: Start isEmpty. Operand 1206 states and 1761 transitions. [2024-10-14 05:23:28,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 670 [2024-10-14 05:23:28,980 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 05:23:28,981 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 8, 8, 8, 8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 05:23:29,008 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2024-10-14 05:23:29,181 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,SelfDestructingSolverStorable28 [2024-10-14 05:23:29,182 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 05:23:29,182 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 05:23:29,182 INFO L85 PathProgramCache]: Analyzing trace with hash 1785066031, now seen corresponding path program 1 times [2024-10-14 05:23:29,182 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 05:23:29,183 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [695271435] [2024-10-14 05:23:29,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 05:23:29,183 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 05:23:29,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:23:29,931 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-10-14 05:23:29,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:23:29,932 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-10-14 05:23:29,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:23:29,933 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-10-14 05:23:29,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:23:29,934 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2024-10-14 05:23:29,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:23:29,935 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2024-10-14 05:23:29,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:23:29,936 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 472 [2024-10-14 05:23:29,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:23:29,937 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 484 [2024-10-14 05:23:29,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:23:29,938 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 512 [2024-10-14 05:23:29,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:23:29,939 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 538 [2024-10-14 05:23:29,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:23:29,940 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 549 [2024-10-14 05:23:29,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:23:29,944 INFO L134 CoverageAnalysis]: Checked inductivity of 548 backedges. 183 proven. 1 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-10-14 05:23:29,944 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 05:23:29,944 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [695271435] [2024-10-14 05:23:29,944 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [695271435] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 05:23:29,946 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1991897517] [2024-10-14 05:23:29,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 05:23:29,947 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 05:23:29,947 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 05:23:29,949 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) [2024-10-14 05:23:29,951 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-10-14 05:23:31,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:23:31,212 INFO L255 TraceCheckSpWp]: Trace formula consists of 3347 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-14 05:23:31,221 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 05:23:31,972 INFO L134 CoverageAnalysis]: Checked inductivity of 548 backedges. 283 proven. 0 refuted. 0 times theorem prover too weak. 265 trivial. 0 not checked. [2024-10-14 05:23:31,972 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 05:23:31,973 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1991897517] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 05:23:31,973 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-14 05:23:31,973 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2024-10-14 05:23:31,973 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [250285751] [2024-10-14 05:23:31,973 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 05:23:31,974 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 05:23:31,974 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 05:23:31,975 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 05:23:31,975 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-14 05:23:31,976 INFO L87 Difference]: Start difference. First operand 1206 states and 1761 transitions. Second operand has 4 states, 4 states have (on average 145.75) internal successors, (583), 4 states have internal predecessors, (583), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-10-14 05:23:32,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 05:23:32,453 INFO L93 Difference]: Finished difference Result 1888 states and 2759 transitions. [2024-10-14 05:23:32,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 05:23:32,453 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 145.75) internal successors, (583), 4 states have internal predecessors, (583), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 669 [2024-10-14 05:23:32,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 05:23:32,456 INFO L225 Difference]: With dead ends: 1888 [2024-10-14 05:23:32,456 INFO L226 Difference]: Without dead ends: 1205 [2024-10-14 05:23:32,458 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 693 GetRequests, 688 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-10-14 05:23:32,458 INFO L432 NwaCegarLoop]: 788 mSDtfsCounter, 813 mSDsluCounter, 790 mSDsCounter, 0 mSdLazyCounter, 608 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 813 SdHoareTripleChecker+Valid, 1578 SdHoareTripleChecker+Invalid, 609 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 608 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-14 05:23:32,459 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [813 Valid, 1578 Invalid, 609 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 608 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-14 05:23:32,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1205 states. [2024-10-14 05:23:32,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1205 to 1205. [2024-10-14 05:23:32,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1205 states, 1193 states have (on average 1.4568315171835708) internal successors, (1738), 1193 states have internal predecessors, (1738), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-10-14 05:23:32,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1205 states to 1205 states and 1758 transitions. [2024-10-14 05:23:32,483 INFO L78 Accepts]: Start accepts. Automaton has 1205 states and 1758 transitions. Word has length 669 [2024-10-14 05:23:32,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 05:23:32,484 INFO L471 AbstractCegarLoop]: Abstraction has 1205 states and 1758 transitions. [2024-10-14 05:23:32,484 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 145.75) internal successors, (583), 4 states have internal predecessors, (583), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-10-14 05:23:32,484 INFO L276 IsEmpty]: Start isEmpty. Operand 1205 states and 1758 transitions. [2024-10-14 05:23:32,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 671 [2024-10-14 05:23:32,489 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 05:23:32,489 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 8, 8, 8, 8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 05:23:32,517 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2024-10-14 05:23:32,690 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 05:23:32,691 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 05:23:32,691 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 05:23:32,691 INFO L85 PathProgramCache]: Analyzing trace with hash 845291609, now seen corresponding path program 1 times [2024-10-14 05:23:32,691 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 05:23:32,691 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1611542866] [2024-10-14 05:23:32,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 05:23:32,691 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 05:23:32,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:23:33,501 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-10-14 05:23:33,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:23:33,502 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-10-14 05:23:33,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:23:33,503 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-10-14 05:23:33,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:23:33,504 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2024-10-14 05:23:33,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:23:33,505 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2024-10-14 05:23:33,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:23:33,506 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 473 [2024-10-14 05:23:33,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:23:33,507 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 485 [2024-10-14 05:23:33,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:23:33,508 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 513 [2024-10-14 05:23:33,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:23:33,509 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 539 [2024-10-14 05:23:33,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:23:33,510 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 550 [2024-10-14 05:23:33,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:23:33,511 INFO L134 CoverageAnalysis]: Checked inductivity of 548 backedges. 183 proven. 1 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-10-14 05:23:33,512 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 05:23:33,512 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1611542866] [2024-10-14 05:23:33,512 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1611542866] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 05:23:33,512 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [58082393] [2024-10-14 05:23:33,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 05:23:33,512 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 05:23:33,512 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 05:23:33,514 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) [2024-10-14 05:23:33,515 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process