./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.unsafe_arbitrated_fifos_n2d8w8.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version fca748b1 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.unsafe_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 77ae88daffb8285870a38f38e30db5571fe2930110ef63da660dc306a4cb95e3 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dd.update-z3-fca748b-m [2024-11-20 00:19:01,959 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-20 00:19:02,021 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-20 00:19:02,028 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-20 00:19:02,030 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-20 00:19:02,062 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-20 00:19:02,064 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-20 00:19:02,065 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-20 00:19:02,066 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-20 00:19:02,067 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-20 00:19:02,068 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-20 00:19:02,068 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-20 00:19:02,069 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-20 00:19:02,069 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-20 00:19:02,071 INFO L153 SettingsManager]: * Use SBE=true [2024-11-20 00:19:02,071 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-20 00:19:02,072 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-20 00:19:02,072 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-20 00:19:02,072 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-20 00:19:02,072 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-20 00:19:02,073 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-20 00:19:02,073 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-20 00:19:02,073 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-20 00:19:02,074 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-20 00:19:02,074 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-20 00:19:02,074 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-20 00:19:02,074 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-20 00:19:02,075 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-20 00:19:02,075 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-20 00:19:02,078 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 00:19:02,078 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-20 00:19:02,079 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-20 00:19:02,079 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-20 00:19:02,079 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-20 00:19:02,080 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-20 00:19:02,080 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-20 00:19:02,080 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-20 00:19:02,080 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-20 00:19:02,080 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-20 00:19:02,080 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 77ae88daffb8285870a38f38e30db5571fe2930110ef63da660dc306a4cb95e3 [2024-11-20 00:19:02,327 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-20 00:19:02,350 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-20 00:19:02,353 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-20 00:19:02,354 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-20 00:19:02,355 INFO L274 PluginConnector]: CDTParser initialized [2024-11-20 00:19:02,356 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-array/btor2c-lazyMod.unsafe_arbitrated_fifos_n2d8w8.c [2024-11-20 00:19:03,780 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-20 00:19:04,048 INFO L384 CDTParser]: Found 1 translation units. [2024-11-20 00:19:04,050 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-array/btor2c-lazyMod.unsafe_arbitrated_fifos_n2d8w8.c [2024-11-20 00:19:04,068 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fd121292e/f02d2151f9e9432a946587f9f261af2b/FLAG4d252e649 [2024-11-20 00:19:04,081 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fd121292e/f02d2151f9e9432a946587f9f261af2b [2024-11-20 00:19:04,083 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-20 00:19:04,085 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-20 00:19:04,086 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-20 00:19:04,086 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-20 00:19:04,093 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-20 00:19:04,094 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:19:04" (1/1) ... [2024-11-20 00:19:04,097 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f76545a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:19:04, skipping insertion in model container [2024-11-20 00:19:04,097 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:19:04" (1/1) ... [2024-11-20 00:19:04,138 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-20 00:19:04,392 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-array/btor2c-lazyMod.unsafe_arbitrated_fifos_n2d8w8.c[1270,1283] [2024-11-20 00:19:04,668 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 00:19:04,680 INFO L200 MainTranslator]: Completed pre-run [2024-11-20 00:19:04,689 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-array/btor2c-lazyMod.unsafe_arbitrated_fifos_n2d8w8.c[1270,1283] [2024-11-20 00:19:04,817 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 00:19:04,844 INFO L204 MainTranslator]: Completed translation [2024-11-20 00:19:04,845 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:19:04 WrapperNode [2024-11-20 00:19:04,845 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-20 00:19:04,846 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-20 00:19:04,846 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-20 00:19:04,846 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-20 00:19:04,853 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:19:04" (1/1) ... [2024-11-20 00:19:04,897 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:19:04" (1/1) ... [2024-11-20 00:19:05,140 INFO L138 Inliner]: procedures = 18, calls = 41, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 2371 [2024-11-20 00:19:05,141 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-20 00:19:05,141 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-20 00:19:05,142 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-20 00:19:05,142 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-20 00:19:05,153 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:19:04" (1/1) ... [2024-11-20 00:19:05,153 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:19:04" (1/1) ... [2024-11-20 00:19:05,189 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:19:04" (1/1) ... [2024-11-20 00:19:05,359 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]. [2024-11-20 00:19:05,359 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:19:04" (1/1) ... [2024-11-20 00:19:05,359 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:19:04" (1/1) ... [2024-11-20 00:19:05,449 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:19:04" (1/1) ... [2024-11-20 00:19:05,474 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:19:04" (1/1) ... [2024-11-20 00:19:05,499 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:19:04" (1/1) ... [2024-11-20 00:19:05,519 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:19:04" (1/1) ... [2024-11-20 00:19:05,556 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-20 00:19:05,558 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-20 00:19:05,559 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-20 00:19:05,559 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-20 00:19:05,560 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:19:04" (1/1) ... [2024-11-20 00:19:05,566 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 00:19:05,576 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 00:19:05,593 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-20 00:19:05,602 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-20 00:19:05,650 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-20 00:19:05,651 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-20 00:19:05,651 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-20 00:19:05,651 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-20 00:19:05,651 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-20 00:19:05,651 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-20 00:19:05,651 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-20 00:19:05,651 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-20 00:19:05,651 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-20 00:19:05,651 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-20 00:19:05,651 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-20 00:19:05,651 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-20 00:19:05,651 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-20 00:19:05,652 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-20 00:19:05,652 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-20 00:19:05,652 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-20 00:19:05,993 INFO L238 CfgBuilder]: Building ICFG [2024-11-20 00:19:05,996 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-20 00:19:08,278 INFO L? ?]: Removed 1277 outVars from TransFormulas that were not future-live. [2024-11-20 00:19:08,279 INFO L287 CfgBuilder]: Performing block encoding [2024-11-20 00:19:08,313 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-20 00:19:08,317 INFO L316 CfgBuilder]: Removed 7 assume(true) statements. [2024-11-20 00:19:08,318 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:19:08 BoogieIcfgContainer [2024-11-20 00:19:08,318 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-20 00:19:08,320 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-20 00:19:08,321 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-20 00:19:08,325 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-20 00:19:08,325 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 12:19:04" (1/3) ... [2024-11-20 00:19:08,326 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c78528d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 12:19:08, skipping insertion in model container [2024-11-20 00:19:08,326 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:19:04" (2/3) ... [2024-11-20 00:19:08,327 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c78528d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 12:19:08, skipping insertion in model container [2024-11-20 00:19:08,327 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:19:08" (3/3) ... [2024-11-20 00:19:08,329 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.unsafe_arbitrated_fifos_n2d8w8.c [2024-11-20 00:19:08,345 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-20 00:19:08,345 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-20 00:19:08,476 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-20 00:19:08,482 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;@67327ac4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-20 00:19:08,483 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-20 00:19:08,490 INFO L276 IsEmpty]: Start isEmpty. Operand has 752 states, 744 states have (on average 1.4973118279569892) internal successors, (1114), 745 states have internal predecessors, (1114), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-20 00:19:08,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2024-11-20 00:19:08,518 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 00:19:08,519 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] [2024-11-20 00:19:08,520 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 00:19:08,525 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 00:19:08,526 INFO L85 PathProgramCache]: Analyzing trace with hash 1553388401, now seen corresponding path program 1 times [2024-11-20 00:19:08,534 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 00:19:08,534 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [249056953] [2024-11-20 00:19:08,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:19:08,535 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 00:19:08,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:19:09,074 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-20 00:19:09,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:19:09,088 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-20 00:19:09,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:19:09,093 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-20 00:19:09,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:19:09,097 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-20 00:19:09,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:19:09,104 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-11-20 00:19:09,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:19:09,108 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-20 00:19:09,109 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 00:19:09,109 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [249056953] [2024-11-20 00:19:09,110 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [249056953] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 00:19:09,110 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 00:19:09,110 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 00:19:09,112 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1841451538] [2024-11-20 00:19:09,113 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 00:19:09,118 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-20 00:19:09,119 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 00:19:09,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-20 00:19:09,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-20 00:19:09,150 INFO L87 Difference]: Start difference. First operand has 752 states, 744 states have (on average 1.4973118279569892) internal successors, (1114), 745 states have internal predecessors, (1114), 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 107.5) internal successors, (215), 2 states have internal predecessors, (215), 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) [2024-11-20 00:19:09,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 00:19:09,244 INFO L93 Difference]: Finished difference Result 1493 states and 2239 transitions. [2024-11-20 00:19:09,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-20 00:19:09,246 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 107.5) internal successors, (215), 2 states have internal predecessors, (215), 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 237 [2024-11-20 00:19:09,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 00:19:09,262 INFO L225 Difference]: With dead ends: 1493 [2024-11-20 00:19:09,262 INFO L226 Difference]: Without dead ends: 749 [2024-11-20 00:19:09,268 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 [2024-11-20 00:19:09,270 INFO L432 NwaCegarLoop]: 1113 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1113 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-20 00:19:09,271 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1113 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 00:19:09,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 749 states. [2024-11-20 00:19:09,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 749 to 749. [2024-11-20 00:19:09,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 749 states, 742 states have (on average 1.486522911051213) internal successors, (1103), 742 states have internal predecessors, (1103), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-20 00:19:09,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 749 states to 749 states and 1113 transitions. [2024-11-20 00:19:09,371 INFO L78 Accepts]: Start accepts. Automaton has 749 states and 1113 transitions. Word has length 237 [2024-11-20 00:19:09,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 00:19:09,372 INFO L471 AbstractCegarLoop]: Abstraction has 749 states and 1113 transitions. [2024-11-20 00:19:09,372 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 107.5) internal successors, (215), 2 states have internal predecessors, (215), 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) [2024-11-20 00:19:09,372 INFO L276 IsEmpty]: Start isEmpty. Operand 749 states and 1113 transitions. [2024-11-20 00:19:09,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2024-11-20 00:19:09,380 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 00:19:09,381 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] [2024-11-20 00:19:09,382 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-20 00:19:09,382 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 00:19:09,382 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 00:19:09,382 INFO L85 PathProgramCache]: Analyzing trace with hash -884107756, now seen corresponding path program 1 times [2024-11-20 00:19:09,383 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 00:19:09,383 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [660906725] [2024-11-20 00:19:09,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:19:09,383 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 00:19:09,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:19:10,129 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-20 00:19:10,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:19:10,134 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-20 00:19:10,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:19:10,137 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-20 00:19:10,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:19:10,142 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-20 00:19:10,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:19:10,145 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-11-20 00:19:10,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:19:10,149 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-20 00:19:10,149 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 00:19:10,150 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [660906725] [2024-11-20 00:19:10,150 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [660906725] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 00:19:10,150 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 00:19:10,150 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-20 00:19:10,150 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [697131064] [2024-11-20 00:19:10,151 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 00:19:10,152 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 00:19:10,153 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 00:19:10,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 00:19:10,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 00:19:10,155 INFO L87 Difference]: Start difference. First operand 749 states and 1113 transitions. Second operand has 3 states, 3 states have (on average 71.66666666666667) internal successors, (215), 3 states have internal predecessors, (215), 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) [2024-11-20 00:19:10,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 00:19:10,199 INFO L93 Difference]: Finished difference Result 1496 states and 2224 transitions. [2024-11-20 00:19:10,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 00:19:10,200 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 71.66666666666667) internal successors, (215), 3 states have internal predecessors, (215), 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 237 [2024-11-20 00:19:10,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 00:19:10,206 INFO L225 Difference]: With dead ends: 1496 [2024-11-20 00:19:10,206 INFO L226 Difference]: Without dead ends: 755 [2024-11-20 00:19:10,209 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 00:19:10,212 INFO L432 NwaCegarLoop]: 1110 mSDtfsCounter, 7 mSDsluCounter, 1107 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 2217 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-20 00:19:10,212 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 2217 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 00:19:10,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 755 states. [2024-11-20 00:19:10,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 755 to 750. [2024-11-20 00:19:10,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 750 states, 743 states have (on average 1.4858681022880216) internal successors, (1104), 743 states have internal predecessors, (1104), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-20 00:19:10,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 750 states to 750 states and 1114 transitions. [2024-11-20 00:19:10,249 INFO L78 Accepts]: Start accepts. Automaton has 750 states and 1114 transitions. Word has length 237 [2024-11-20 00:19:10,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 00:19:10,249 INFO L471 AbstractCegarLoop]: Abstraction has 750 states and 1114 transitions. [2024-11-20 00:19:10,249 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 71.66666666666667) internal successors, (215), 3 states have internal predecessors, (215), 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) [2024-11-20 00:19:10,251 INFO L276 IsEmpty]: Start isEmpty. Operand 750 states and 1114 transitions. [2024-11-20 00:19:10,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2024-11-20 00:19:10,256 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 00:19:10,256 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] [2024-11-20 00:19:10,257 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-20 00:19:10,258 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 00:19:10,261 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 00:19:10,261 INFO L85 PathProgramCache]: Analyzing trace with hash 1556809999, now seen corresponding path program 1 times [2024-11-20 00:19:10,261 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 00:19:10,261 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [909484972] [2024-11-20 00:19:10,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:19:10,262 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 00:19:10,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:19:10,897 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 00:19:10,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:19:10,904 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 00:19:10,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:19:10,907 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-20 00:19:10,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:19:10,913 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-11-20 00:19:10,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:19:10,919 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-11-20 00:19:10,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:19:10,922 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-20 00:19:10,922 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 00:19:10,923 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [909484972] [2024-11-20 00:19:10,924 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [909484972] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 00:19:10,924 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1754209236] [2024-11-20 00:19:10,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:19:10,925 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 00:19:10,925 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 00:19:10,927 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 00:19:10,929 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-20 00:19:11,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:19:11,456 INFO L255 TraceCheckSpWp]: Trace formula consists of 1081 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-20 00:19:11,468 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 00:19:11,516 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-20 00:19:11,520 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-20 00:19:11,584 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2024-11-20 00:19:11,585 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1754209236] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-20 00:19:11,588 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-20 00:19:11,588 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4, 4] total 6 [2024-11-20 00:19:11,588 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [183167512] [2024-11-20 00:19:11,588 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 00:19:11,589 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 00:19:11,589 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 00:19:11,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 00:19:11,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-20 00:19:11,590 INFO L87 Difference]: Start difference. First operand 750 states and 1114 transitions. Second operand has 3 states, 3 states have (on average 73.0) internal successors, (219), 3 states have internal predecessors, (219), 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) [2024-11-20 00:19:11,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 00:19:11,621 INFO L93 Difference]: Finished difference Result 1469 states and 2184 transitions. [2024-11-20 00:19:11,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 00:19:11,621 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 73.0) internal successors, (219), 3 states have internal predecessors, (219), 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 241 [2024-11-20 00:19:11,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 00:19:11,625 INFO L225 Difference]: With dead ends: 1469 [2024-11-20 00:19:11,625 INFO L226 Difference]: Without dead ends: 751 [2024-11-20 00:19:11,626 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 494 GetRequests, 490 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-20 00:19:11,628 INFO L432 NwaCegarLoop]: 1110 mSDtfsCounter, 7 mSDsluCounter, 1101 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 2211 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-20 00:19:11,628 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 2211 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 00:19:11,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 751 states. [2024-11-20 00:19:11,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 751 to 751. [2024-11-20 00:19:11,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 751 states, 744 states have (on average 1.4852150537634408) internal successors, (1105), 744 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) [2024-11-20 00:19:11,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 751 states to 751 states and 1115 transitions. [2024-11-20 00:19:11,644 INFO L78 Accepts]: Start accepts. Automaton has 751 states and 1115 transitions. Word has length 241 [2024-11-20 00:19:11,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 00:19:11,644 INFO L471 AbstractCegarLoop]: Abstraction has 751 states and 1115 transitions. [2024-11-20 00:19:11,644 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 73.0) internal successors, (219), 3 states have internal predecessors, (219), 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) [2024-11-20 00:19:11,645 INFO L276 IsEmpty]: Start isEmpty. Operand 751 states and 1115 transitions. [2024-11-20 00:19:11,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 246 [2024-11-20 00:19:11,648 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 00:19:11,648 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] [2024-11-20 00:19:11,661 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-20 00:19:11,848 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 [2024-11-20 00:19:11,849 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 00:19:11,850 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 00:19:11,850 INFO L85 PathProgramCache]: Analyzing trace with hash 973399818, now seen corresponding path program 1 times [2024-11-20 00:19:11,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 00:19:11,850 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1413039628] [2024-11-20 00:19:11,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:19:11,850 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 00:19:11,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:19:12,295 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-11-20 00:19:12,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:19:12,297 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-20 00:19:12,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:19:12,301 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-11-20 00:19:12,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:19:12,305 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-11-20 00:19:12,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:19:12,307 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2024-11-20 00:19:12,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:19:12,309 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2024-11-20 00:19:12,309 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 00:19:12,309 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1413039628] [2024-11-20 00:19:12,309 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1413039628] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 00:19:12,309 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [395637432] [2024-11-20 00:19:12,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:19:12,311 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 00:19:12,311 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 00:19:12,314 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 00:19:12,316 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-20 00:19:12,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:19:12,860 INFO L255 TraceCheckSpWp]: Trace formula consists of 1091 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-20 00:19:12,873 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 00:19:13,360 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2024-11-20 00:19:13,361 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-20 00:19:13,361 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [395637432] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 00:19:13,361 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-20 00:19:13,362 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2024-11-20 00:19:13,362 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [303911856] [2024-11-20 00:19:13,362 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 00:19:13,363 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 00:19:13,363 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 00:19:13,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 00:19:13,364 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-20 00:19:13,365 INFO L87 Difference]: Start difference. First operand 751 states and 1115 transitions. Second operand has 4 states, 4 states have (on average 55.75) internal successors, (223), 4 states have internal predecessors, (223), 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) [2024-11-20 00:19:13,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 00:19:13,611 INFO L93 Difference]: Finished difference Result 1404 states and 2086 transitions. [2024-11-20 00:19:13,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 00:19:13,614 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 55.75) internal successors, (223), 4 states have internal predecessors, (223), 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 245 [2024-11-20 00:19:13,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 00:19:13,618 INFO L225 Difference]: With dead ends: 1404 [2024-11-20 00:19:13,619 INFO L226 Difference]: Without dead ends: 751 [2024-11-20 00:19:13,620 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 258 GetRequests, 254 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-20 00:19:13,622 INFO L432 NwaCegarLoop]: 1012 mSDtfsCounter, 978 mSDsluCounter, 1014 mSDsCounter, 0 mSdLazyCounter, 202 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 978 SdHoareTripleChecker+Valid, 2026 SdHoareTripleChecker+Invalid, 203 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 202 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-20 00:19:13,623 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [978 Valid, 2026 Invalid, 203 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 202 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-20 00:19:13,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 751 states. [2024-11-20 00:19:13,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 751 to 751. [2024-11-20 00:19:13,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 751 states, 744 states have (on average 1.48252688172043) internal successors, (1103), 744 states have internal predecessors, (1103), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-20 00:19:13,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 751 states to 751 states and 1113 transitions. [2024-11-20 00:19:13,645 INFO L78 Accepts]: Start accepts. Automaton has 751 states and 1113 transitions. Word has length 245 [2024-11-20 00:19:13,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 00:19:13,649 INFO L471 AbstractCegarLoop]: Abstraction has 751 states and 1113 transitions. [2024-11-20 00:19:13,650 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 55.75) internal successors, (223), 4 states have internal predecessors, (223), 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) [2024-11-20 00:19:13,651 INFO L276 IsEmpty]: Start isEmpty. Operand 751 states and 1113 transitions. [2024-11-20 00:19:13,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 248 [2024-11-20 00:19:13,655 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 00:19:13,655 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, 1] [2024-11-20 00:19:13,668 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-20 00:19:13,856 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 [2024-11-20 00:19:13,856 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 00:19:13,857 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 00:19:13,857 INFO L85 PathProgramCache]: Analyzing trace with hash -1130408025, now seen corresponding path program 1 times [2024-11-20 00:19:13,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 00:19:13,858 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [325284413] [2024-11-20 00:19:13,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:19:13,858 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 00:19:14,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:19:14,306 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-11-20 00:19:14,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:19:14,308 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-20 00:19:14,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:19:14,310 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-11-20 00:19:14,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:19:14,312 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-11-20 00:19:14,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:19:14,313 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2024-11-20 00:19:14,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:19:14,316 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2024-11-20 00:19:14,316 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 00:19:14,316 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [325284413] [2024-11-20 00:19:14,316 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [325284413] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 00:19:14,317 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [410449170] [2024-11-20 00:19:14,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:19:14,317 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 00:19:14,317 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 00:19:14,320 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 00:19:14,322 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-20 00:19:14,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:19:14,784 INFO L255 TraceCheckSpWp]: Trace formula consists of 1095 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-20 00:19:14,791 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 00:19:15,086 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2024-11-20 00:19:15,086 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-20 00:19:15,087 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [410449170] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 00:19:15,087 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-20 00:19:15,087 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [4] total 8 [2024-11-20 00:19:15,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1622319668] [2024-11-20 00:19:15,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 00:19:15,088 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 00:19:15,088 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 00:19:15,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 00:19:15,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-20 00:19:15,089 INFO L87 Difference]: Start difference. First operand 751 states and 1113 transitions. Second operand has 6 states, 6 states have (on average 37.5) internal successors, (225), 6 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) [2024-11-20 00:19:15,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 00:19:15,378 INFO L93 Difference]: Finished difference Result 1404 states and 2082 transitions. [2024-11-20 00:19:15,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 00:19:15,379 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 37.5) internal successors, (225), 6 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 247 [2024-11-20 00:19:15,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 00:19:15,383 INFO L225 Difference]: With dead ends: 1404 [2024-11-20 00:19:15,383 INFO L226 Difference]: Without dead ends: 751 [2024-11-20 00:19:15,384 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 262 GetRequests, 254 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2024-11-20 00:19:15,385 INFO L432 NwaCegarLoop]: 1012 mSDtfsCounter, 2034 mSDsluCounter, 2010 mSDsCounter, 0 mSdLazyCounter, 302 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2039 SdHoareTripleChecker+Valid, 3022 SdHoareTripleChecker+Invalid, 303 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 302 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-20 00:19:15,386 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2039 Valid, 3022 Invalid, 303 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 302 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-20 00:19:15,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 751 states. [2024-11-20 00:19:15,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 751 to 751. [2024-11-20 00:19:15,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 751 states, 744 states have (on average 1.4811827956989247) internal successors, (1102), 744 states have internal predecessors, (1102), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-20 00:19:15,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 751 states to 751 states and 1112 transitions. [2024-11-20 00:19:15,402 INFO L78 Accepts]: Start accepts. Automaton has 751 states and 1112 transitions. Word has length 247 [2024-11-20 00:19:15,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 00:19:15,403 INFO L471 AbstractCegarLoop]: Abstraction has 751 states and 1112 transitions. [2024-11-20 00:19:15,403 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 37.5) internal successors, (225), 6 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) [2024-11-20 00:19:15,403 INFO L276 IsEmpty]: Start isEmpty. Operand 751 states and 1112 transitions. [2024-11-20 00:19:15,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2024-11-20 00:19:15,407 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 00:19:15,407 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, 1, 1] [2024-11-20 00:19:15,418 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-20 00:19:15,607 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 [2024-11-20 00:19:15,608 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 00:19:15,608 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 00:19:15,609 INFO L85 PathProgramCache]: Analyzing trace with hash -554608893, now seen corresponding path program 1 times [2024-11-20 00:19:15,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 00:19:15,609 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [286351398] [2024-11-20 00:19:15,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:19:15,609 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 00:19:15,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:19:15,974 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-11-20 00:19:15,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:19:15,976 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-20 00:19:15,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:19:15,978 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-11-20 00:19:15,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:19:15,980 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-11-20 00:19:15,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:19:15,981 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2024-11-20 00:19:15,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:19:15,983 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2024-11-20 00:19:15,983 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 00:19:15,983 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [286351398] [2024-11-20 00:19:15,984 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [286351398] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 00:19:15,984 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [394448718] [2024-11-20 00:19:15,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:19:15,984 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 00:19:15,984 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 00:19:15,987 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 00:19:15,988 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-20 00:19:16,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:19:16,465 INFO L255 TraceCheckSpWp]: Trace formula consists of 1098 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-20 00:19:16,470 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 00:19:16,743 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2024-11-20 00:19:16,744 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-20 00:19:16,744 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [394448718] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 00:19:16,744 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-20 00:19:16,744 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [4] total 8 [2024-11-20 00:19:16,745 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1840276318] [2024-11-20 00:19:16,745 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 00:19:16,746 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 00:19:16,746 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 00:19:16,746 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 00:19:16,747 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-20 00:19:16,747 INFO L87 Difference]: Start difference. First operand 751 states and 1112 transitions. Second operand has 6 states, 6 states have (on average 37.666666666666664) internal successors, (226), 6 states have internal predecessors, (226), 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) [2024-11-20 00:19:17,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 00:19:17,010 INFO L93 Difference]: Finished difference Result 1404 states and 2080 transitions. [2024-11-20 00:19:17,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 00:19:17,010 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 37.666666666666664) internal successors, (226), 6 states have internal predecessors, (226), 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 248 [2024-11-20 00:19:17,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 00:19:17,014 INFO L225 Difference]: With dead ends: 1404 [2024-11-20 00:19:17,015 INFO L226 Difference]: Without dead ends: 751 [2024-11-20 00:19:17,016 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 263 GetRequests, 255 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2024-11-20 00:19:17,017 INFO L432 NwaCegarLoop]: 1012 mSDtfsCounter, 2031 mSDsluCounter, 2010 mSDsCounter, 0 mSdLazyCounter, 299 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2036 SdHoareTripleChecker+Valid, 3022 SdHoareTripleChecker+Invalid, 300 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 299 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-20 00:19:17,017 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2036 Valid, 3022 Invalid, 300 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 299 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-20 00:19:17,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 751 states. [2024-11-20 00:19:17,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 751 to 751. [2024-11-20 00:19:17,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 751 states, 744 states have (on average 1.4798387096774193) internal successors, (1101), 744 states have internal predecessors, (1101), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-20 00:19:17,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 751 states to 751 states and 1111 transitions. [2024-11-20 00:19:17,035 INFO L78 Accepts]: Start accepts. Automaton has 751 states and 1111 transitions. Word has length 248 [2024-11-20 00:19:17,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 00:19:17,035 INFO L471 AbstractCegarLoop]: Abstraction has 751 states and 1111 transitions. [2024-11-20 00:19:17,036 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 37.666666666666664) internal successors, (226), 6 states have internal predecessors, (226), 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) [2024-11-20 00:19:17,036 INFO L276 IsEmpty]: Start isEmpty. Operand 751 states and 1111 transitions. [2024-11-20 00:19:17,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 250 [2024-11-20 00:19:17,038 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 00:19:17,039 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, 1, 1, 1] [2024-11-20 00:19:17,052 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-20 00:19:17,239 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 [2024-11-20 00:19:17,240 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 00:19:17,240 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 00:19:17,240 INFO L85 PathProgramCache]: Analyzing trace with hash -1598458684, now seen corresponding path program 1 times [2024-11-20 00:19:17,240 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 00:19:17,241 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [477639788] [2024-11-20 00:19:17,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:19:17,241 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 00:19:17,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:19:17,573 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-11-20 00:19:17,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:19:17,576 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-20 00:19:17,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:19:17,577 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-11-20 00:19:17,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:19:17,579 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-11-20 00:19:17,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:19:17,580 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2024-11-20 00:19:17,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:19:17,582 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2024-11-20 00:19:17,582 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 00:19:17,582 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [477639788] [2024-11-20 00:19:17,582 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [477639788] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 00:19:17,582 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2099089498] [2024-11-20 00:19:17,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:19:17,583 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 00:19:17,583 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 00:19:17,585 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 00:19:17,586 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-20 00:19:18,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:19:18,112 INFO L255 TraceCheckSpWp]: Trace formula consists of 1099 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-20 00:19:18,117 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 00:19:18,155 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2024-11-20 00:19:18,156 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-20 00:19:18,902 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2024-11-20 00:19:18,902 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2099089498] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-20 00:19:18,902 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-20 00:19:18,903 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 8] total 12 [2024-11-20 00:19:18,903 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1601106415] [2024-11-20 00:19:18,903 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-20 00:19:18,904 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-20 00:19:18,904 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 00:19:18,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-20 00:19:18,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2024-11-20 00:19:18,905 INFO L87 Difference]: Start difference. First operand 751 states and 1111 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) [2024-11-20 00:19:20,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 00:19:20,803 INFO L93 Difference]: Finished difference Result 2113 states and 3130 transitions. [2024-11-20 00:19:20,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-20 00:19:20,804 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 249 [2024-11-20 00:19:20,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 00:19:20,808 INFO L225 Difference]: With dead ends: 2113 [2024-11-20 00:19:20,808 INFO L226 Difference]: Without dead ends: 1371 [2024-11-20 00:19:20,810 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 511 GetRequests, 500 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2024-11-20 00:19:20,810 INFO L432 NwaCegarLoop]: 1352 mSDtfsCounter, 3240 mSDsluCounter, 7461 mSDsCounter, 0 mSdLazyCounter, 3110 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3245 SdHoareTripleChecker+Valid, 8813 SdHoareTripleChecker+Invalid, 3116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 3110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-20 00:19:20,810 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3245 Valid, 8813 Invalid, 3116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 3110 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-20 00:19:20,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1371 states. [2024-11-20 00:19:20,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1371 to 970. [2024-11-20 00:19:20,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 970 states, 958 states have (on average 1.475991649269311) internal successors, (1414), 958 states have internal predecessors, (1414), 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) [2024-11-20 00:19:20,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 970 states to 970 states and 1434 transitions. [2024-11-20 00:19:20,836 INFO L78 Accepts]: Start accepts. Automaton has 970 states and 1434 transitions. Word has length 249 [2024-11-20 00:19:20,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 00:19:20,836 INFO L471 AbstractCegarLoop]: Abstraction has 970 states and 1434 transitions. [2024-11-20 00:19:20,836 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) [2024-11-20 00:19:20,836 INFO L276 IsEmpty]: Start isEmpty. Operand 970 states and 1434 transitions. [2024-11-20 00:19:20,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2024-11-20 00:19:20,839 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 00:19:20,839 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 00:19:20,851 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-20 00:19:21,040 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 [2024-11-20 00:19:21,041 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 00:19:21,041 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 00:19:21,041 INFO L85 PathProgramCache]: Analyzing trace with hash 391476179, now seen corresponding path program 1 times [2024-11-20 00:19:21,042 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 00:19:21,042 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1847332227] [2024-11-20 00:19:21,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:19:21,042 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 00:19:21,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:19:21,382 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-20 00:19:21,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:19:21,385 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-11-20 00:19:21,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:19:21,386 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-11-20 00:19:21,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:19:21,387 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-11-20 00:19:21,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:19:21,389 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-20 00:19:21,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:19:21,391 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2024-11-20 00:19:21,392 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 00:19:21,392 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1847332227] [2024-11-20 00:19:21,392 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1847332227] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 00:19:21,392 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [997351327] [2024-11-20 00:19:21,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:19:21,392 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 00:19:21,393 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 00:19:21,395 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 00:19:21,397 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-20 00:19:21,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:19:21,882 INFO L255 TraceCheckSpWp]: Trace formula consists of 1112 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-20 00:19:21,887 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 00:19:21,916 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-20 00:19:21,916 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-20 00:19:21,965 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2024-11-20 00:19:21,965 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [997351327] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-20 00:19:21,965 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-20 00:19:21,966 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6, 4] total 9 [2024-11-20 00:19:21,966 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [350350256] [2024-11-20 00:19:21,966 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-20 00:19:21,967 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-20 00:19:21,967 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 00:19:21,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-20 00:19:21,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-20 00:19:21,968 INFO L87 Difference]: Start difference. First operand 970 states and 1434 transitions. Second operand has 9 states, 9 states have (on average 29.22222222222222) internal successors, (263), 9 states have internal predecessors, (263), 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) [2024-11-20 00:19:22,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 00:19:22,062 INFO L93 Difference]: Finished difference Result 1972 states and 2918 transitions. [2024-11-20 00:19:22,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-20 00:19:22,063 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 29.22222222222222) internal successors, (263), 9 states have internal predecessors, (263), 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 254 [2024-11-20 00:19:22,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 00:19:22,067 INFO L225 Difference]: With dead ends: 1972 [2024-11-20 00:19:22,067 INFO L226 Difference]: Without dead ends: 1017 [2024-11-20 00:19:22,069 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 522 GetRequests, 514 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2024-11-20 00:19:22,069 INFO L432 NwaCegarLoop]: 1113 mSDtfsCounter, 52 mSDsluCounter, 5526 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 6639 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-20 00:19:22,070 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 6639 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-20 00:19:22,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1017 states. [2024-11-20 00:19:22,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1017 to 1012. [2024-11-20 00:19:22,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1012 states, 1000 states have (on average 1.47) internal successors, (1470), 1000 states have internal predecessors, (1470), 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) [2024-11-20 00:19:22,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1012 states to 1012 states and 1490 transitions. [2024-11-20 00:19:22,094 INFO L78 Accepts]: Start accepts. Automaton has 1012 states and 1490 transitions. Word has length 254 [2024-11-20 00:19:22,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 00:19:22,094 INFO L471 AbstractCegarLoop]: Abstraction has 1012 states and 1490 transitions. [2024-11-20 00:19:22,095 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 29.22222222222222) internal successors, (263), 9 states have internal predecessors, (263), 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) [2024-11-20 00:19:22,095 INFO L276 IsEmpty]: Start isEmpty. Operand 1012 states and 1490 transitions. [2024-11-20 00:19:22,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 271 [2024-11-20 00:19:22,098 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 00:19:22,099 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 3, 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] [2024-11-20 00:19:22,111 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-20 00:19:22,299 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 [2024-11-20 00:19:22,300 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 00:19:22,300 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 00:19:22,300 INFO L85 PathProgramCache]: Analyzing trace with hash -1044881239, now seen corresponding path program 2 times [2024-11-20 00:19:22,300 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 00:19:22,300 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [805705014] [2024-11-20 00:19:22,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:19:22,301 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 00:19:22,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:19:22,802 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-20 00:19:22,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:19:22,804 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-20 00:19:22,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:19:22,807 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-11-20 00:19:22,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:19:22,809 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2024-11-20 00:19:22,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:19:22,811 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-11-20 00:19:22,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:19:22,813 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2024-11-20 00:19:22,813 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 00:19:22,814 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [805705014] [2024-11-20 00:19:22,814 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [805705014] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 00:19:22,814 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1121300401] [2024-11-20 00:19:22,815 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-20 00:19:22,815 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 00:19:22,815 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 00:19:22,818 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 00:19:22,819 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-20 00:19:23,304 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-20 00:19:23,305 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-20 00:19:23,309 INFO L255 TraceCheckSpWp]: Trace formula consists of 810 conjuncts, 52 conjuncts are in the unsatisfiable core [2024-11-20 00:19:23,315 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 00:19:23,810 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2024-11-20 00:19:23,810 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-20 00:19:23,810 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1121300401] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 00:19:23,810 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-20 00:19:23,811 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [6] total 11 [2024-11-20 00:19:23,813 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [64841867] [2024-11-20 00:19:23,813 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 00:19:23,814 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-20 00:19:23,814 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 00:19:23,815 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-20 00:19:23,815 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2024-11-20 00:19:23,815 INFO L87 Difference]: Start difference. First operand 1012 states and 1490 transitions. Second operand has 7 states, 7 states have (on average 32.57142857142857) internal successors, (228), 7 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) [2024-11-20 00:19:25,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 00:19:25,008 INFO L93 Difference]: Finished difference Result 2296 states and 3391 transitions. [2024-11-20 00:19:25,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-20 00:19:25,009 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 32.57142857142857) internal successors, (228), 7 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 270 [2024-11-20 00:19:25,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 00:19:25,016 INFO L225 Difference]: With dead ends: 2296 [2024-11-20 00:19:25,017 INFO L226 Difference]: Without dead ends: 1643 [2024-11-20 00:19:25,018 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 285 GetRequests, 276 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2024-11-20 00:19:25,020 INFO L432 NwaCegarLoop]: 1421 mSDtfsCounter, 1916 mSDsluCounter, 4252 mSDsCounter, 0 mSdLazyCounter, 2124 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1921 SdHoareTripleChecker+Valid, 5673 SdHoareTripleChecker+Invalid, 2125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-20 00:19:25,020 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1921 Valid, 5673 Invalid, 2125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2124 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-20 00:19:25,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1643 states. [2024-11-20 00:19:25,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1643 to 1242. [2024-11-20 00:19:25,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1242 states, 1225 states have (on average 1.4669387755102041) internal successors, (1797), 1225 states have internal predecessors, (1797), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-20 00:19:25,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1242 states to 1242 states and 1827 transitions. [2024-11-20 00:19:25,062 INFO L78 Accepts]: Start accepts. Automaton has 1242 states and 1827 transitions. Word has length 270 [2024-11-20 00:19:25,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 00:19:25,062 INFO L471 AbstractCegarLoop]: Abstraction has 1242 states and 1827 transitions. [2024-11-20 00:19:25,062 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 32.57142857142857) internal successors, (228), 7 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) [2024-11-20 00:19:25,063 INFO L276 IsEmpty]: Start isEmpty. Operand 1242 states and 1827 transitions. [2024-11-20 00:19:25,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 271 [2024-11-20 00:19:25,069 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 00:19:25,069 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 3, 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] [2024-11-20 00:19:25,081 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-11-20 00:19:25,270 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 [2024-11-20 00:19:25,271 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 00:19:25,271 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 00:19:25,271 INFO L85 PathProgramCache]: Analyzing trace with hash -618258351, now seen corresponding path program 1 times [2024-11-20 00:19:25,271 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 00:19:25,272 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [710169656] [2024-11-20 00:19:25,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:19:25,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 00:19:25,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:19:25,696 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 00:19:25,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:19:25,698 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-20 00:19:25,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:19:25,699 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-11-20 00:19:25,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:19:25,701 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-11-20 00:19:25,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:19:25,702 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-11-20 00:19:25,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:19:25,704 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2024-11-20 00:19:25,704 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 00:19:25,704 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [710169656] [2024-11-20 00:19:25,704 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [710169656] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 00:19:25,705 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1954530356] [2024-11-20 00:19:25,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:19:25,705 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 00:19:25,705 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 00:19:25,708 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 00:19:25,709 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-20 00:19:26,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:19:26,204 INFO L255 TraceCheckSpWp]: Trace formula consists of 1152 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-20 00:19:26,208 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 00:19:26,240 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2024-11-20 00:19:26,240 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-20 00:19:26,414 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 13 proven. 30 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-20 00:19:26,414 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1954530356] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-20 00:19:26,414 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-20 00:19:26,415 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 10] total 15 [2024-11-20 00:19:26,415 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1731228759] [2024-11-20 00:19:26,415 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-20 00:19:26,416 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-20 00:19:26,416 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 00:19:26,417 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-20 00:19:26,417 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=159, Unknown=0, NotChecked=0, Total=210 [2024-11-20 00:19:26,417 INFO L87 Difference]: Start difference. First operand 1242 states and 1827 transitions. Second operand has 15 states, 15 states have (on average 17.933333333333334) internal successors, (269), 15 states have internal predecessors, (269), 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) [2024-11-20 00:19:26,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 00:19:26,627 INFO L93 Difference]: Finished difference Result 2493 states and 3671 transitions. [2024-11-20 00:19:26,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-20 00:19:26,628 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 17.933333333333334) internal successors, (269), 15 states have internal predecessors, (269), 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 270 [2024-11-20 00:19:26,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 00:19:26,633 INFO L225 Difference]: With dead ends: 2493 [2024-11-20 00:19:26,633 INFO L226 Difference]: Without dead ends: 1272 [2024-11-20 00:19:26,635 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 557 GetRequests, 541 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=84, Invalid=222, Unknown=0, NotChecked=0, Total=306 [2024-11-20 00:19:26,636 INFO L432 NwaCegarLoop]: 1121 mSDtfsCounter, 102 mSDsluCounter, 8928 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 10049 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-20 00:19:26,636 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [102 Valid, 10049 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 146 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-20 00:19:26,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1272 states. [2024-11-20 00:19:26,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1272 to 1272. [2024-11-20 00:19:26,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1272 states, 1255 states have (on average 1.4637450199203188) internal successors, (1837), 1255 states have internal predecessors, (1837), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-20 00:19:26,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1272 states to 1272 states and 1867 transitions. [2024-11-20 00:19:26,668 INFO L78 Accepts]: Start accepts. Automaton has 1272 states and 1867 transitions. Word has length 270 [2024-11-20 00:19:26,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 00:19:26,668 INFO L471 AbstractCegarLoop]: Abstraction has 1272 states and 1867 transitions. [2024-11-20 00:19:26,668 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 17.933333333333334) internal successors, (269), 15 states have internal predecessors, (269), 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) [2024-11-20 00:19:26,669 INFO L276 IsEmpty]: Start isEmpty. Operand 1272 states and 1867 transitions. [2024-11-20 00:19:26,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 291 [2024-11-20 00:19:26,671 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 00:19:26,671 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 5, 5, 5, 4, 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] [2024-11-20 00:19:26,683 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-11-20 00:19:26,872 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 [2024-11-20 00:19:26,872 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 00:19:26,873 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 00:19:26,873 INFO L85 PathProgramCache]: Analyzing trace with hash 1149882698, now seen corresponding path program 2 times [2024-11-20 00:19:26,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 00:19:26,873 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [288062168] [2024-11-20 00:19:26,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:19:26,873 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 00:19:26,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:19:27,342 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-20 00:19:27,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:19:27,345 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-11-20 00:19:27,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:19:27,346 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-11-20 00:19:27,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:19:27,348 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2024-11-20 00:19:27,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:19:27,349 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2024-11-20 00:19:27,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:19:27,351 INFO L134 CoverageAnalysis]: Checked inductivity of 188 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 160 trivial. 0 not checked. [2024-11-20 00:19:27,351 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 00:19:27,352 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [288062168] [2024-11-20 00:19:27,352 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [288062168] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 00:19:27,352 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1532990041] [2024-11-20 00:19:27,352 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-20 00:19:27,352 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 00:19:27,353 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 00:19:27,355 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 00:19:27,356 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-20 00:19:27,868 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-20 00:19:27,868 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-20 00:19:27,879 INFO L255 TraceCheckSpWp]: Trace formula consists of 810 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-20 00:19:27,885 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 00:19:28,208 INFO L134 CoverageAnalysis]: Checked inductivity of 188 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 188 trivial. 0 not checked. [2024-11-20 00:19:28,208 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-20 00:19:28,208 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1532990041] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 00:19:28,208 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-20 00:19:28,209 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 12 [2024-11-20 00:19:28,209 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1954164185] [2024-11-20 00:19:28,209 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 00:19:28,210 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-20 00:19:28,210 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 00:19:28,211 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-20 00:19:28,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2024-11-20 00:19:28,211 INFO L87 Difference]: Start difference. First operand 1272 states and 1867 transitions. Second operand has 7 states, 7 states have (on average 32.57142857142857) internal successors, (228), 7 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) [2024-11-20 00:19:29,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 00:19:29,113 INFO L93 Difference]: Finished difference Result 2299 states and 3388 transitions. [2024-11-20 00:19:29,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-20 00:19:29,113 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 32.57142857142857) internal successors, (228), 7 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 290 [2024-11-20 00:19:29,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 00:19:29,118 INFO L225 Difference]: With dead ends: 2299 [2024-11-20 00:19:29,118 INFO L226 Difference]: Without dead ends: 1391 [2024-11-20 00:19:29,120 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 309 GetRequests, 296 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=169, Unknown=0, NotChecked=0, Total=210 [2024-11-20 00:19:29,120 INFO L432 NwaCegarLoop]: 803 mSDtfsCounter, 1343 mSDsluCounter, 3187 mSDsCounter, 0 mSdLazyCounter, 1554 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1353 SdHoareTripleChecker+Valid, 3990 SdHoareTripleChecker+Invalid, 1561 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1554 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-20 00:19:29,120 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1353 Valid, 3990 Invalid, 1561 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1554 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-20 00:19:29,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1391 states. [2024-11-20 00:19:29,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1391 to 1292. [2024-11-20 00:19:29,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1292 states, 1275 states have (on average 1.4588235294117646) internal successors, (1860), 1275 states have internal predecessors, (1860), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-20 00:19:29,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1292 states to 1292 states and 1890 transitions. [2024-11-20 00:19:29,149 INFO L78 Accepts]: Start accepts. Automaton has 1292 states and 1890 transitions. Word has length 290 [2024-11-20 00:19:29,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 00:19:29,149 INFO L471 AbstractCegarLoop]: Abstraction has 1292 states and 1890 transitions. [2024-11-20 00:19:29,150 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 32.57142857142857) internal successors, (228), 7 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) [2024-11-20 00:19:29,150 INFO L276 IsEmpty]: Start isEmpty. Operand 1292 states and 1890 transitions. [2024-11-20 00:19:29,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 293 [2024-11-20 00:19:29,152 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 00:19:29,152 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 5, 5, 5, 4, 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] [2024-11-20 00:19:29,164 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-20 00:19:29,353 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 00:19:29,354 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 00:19:29,354 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 00:19:29,354 INFO L85 PathProgramCache]: Analyzing trace with hash -1469270483, now seen corresponding path program 1 times [2024-11-20 00:19:29,354 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 00:19:29,355 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [646296876] [2024-11-20 00:19:29,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:19:29,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 00:19:29,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:19:29,886 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-20 00:19:29,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:19:29,888 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-11-20 00:19:29,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:19:29,891 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-11-20 00:19:29,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:19:29,894 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2024-11-20 00:19:29,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:19:29,895 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2024-11-20 00:19:29,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:19:29,897 INFO L134 CoverageAnalysis]: Checked inductivity of 188 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 160 trivial. 0 not checked. [2024-11-20 00:19:29,897 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 00:19:29,897 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [646296876] [2024-11-20 00:19:29,897 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [646296876] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 00:19:29,897 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1813270701] [2024-11-20 00:19:29,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:19:29,898 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 00:19:29,898 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 00:19:29,900 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 00:19:29,902 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-20 00:19:30,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:19:30,452 INFO L255 TraceCheckSpWp]: Trace formula consists of 1206 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-20 00:19:30,458 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 00:19:30,546 INFO L134 CoverageAnalysis]: Checked inductivity of 188 backedges. 0 proven. 124 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2024-11-20 00:19:30,546 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-20 00:19:30,674 INFO L134 CoverageAnalysis]: Checked inductivity of 188 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 160 trivial. 0 not checked. [2024-11-20 00:19:30,675 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1813270701] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-20 00:19:30,675 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-20 00:19:30,675 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 12, 7] total 18 [2024-11-20 00:19:30,675 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [98571408] [2024-11-20 00:19:30,675 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-20 00:19:30,676 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-20 00:19:30,676 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 00:19:30,677 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-20 00:19:30,677 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=240, Unknown=0, NotChecked=0, Total=306 [2024-11-20 00:19:30,677 INFO L87 Difference]: Start difference. First operand 1292 states and 1890 transitions. Second operand has 18 states, 18 states have (on average 15.722222222222221) internal successors, (283), 18 states have internal predecessors, (283), 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) [2024-11-20 00:19:30,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 00:19:30,926 INFO L93 Difference]: Finished difference Result 2511 states and 3691 transitions. [2024-11-20 00:19:30,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-20 00:19:30,926 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 15.722222222222221) internal successors, (283), 18 states have internal predecessors, (283), 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 292 [2024-11-20 00:19:30,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 00:19:30,930 INFO L225 Difference]: With dead ends: 2511 [2024-11-20 00:19:30,930 INFO L226 Difference]: Without dead ends: 1364 [2024-11-20 00:19:30,932 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 601 GetRequests, 583 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=88, Invalid=292, Unknown=0, NotChecked=0, Total=380 [2024-11-20 00:19:30,933 INFO L432 NwaCegarLoop]: 1143 mSDtfsCounter, 141 mSDsluCounter, 11355 mSDsCounter, 0 mSdLazyCounter, 338 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 12498 SdHoareTripleChecker+Invalid, 339 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 338 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-20 00:19:30,933 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [141 Valid, 12498 Invalid, 339 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 338 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-20 00:19:30,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1364 states. [2024-11-20 00:19:30,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1364 to 1364. [2024-11-20 00:19:30,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1364 states, 1347 states have (on average 1.4521158129175946) internal successors, (1956), 1347 states have internal predecessors, (1956), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-20 00:19:30,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1364 states to 1364 states and 1986 transitions. [2024-11-20 00:19:30,969 INFO L78 Accepts]: Start accepts. Automaton has 1364 states and 1986 transitions. Word has length 292 [2024-11-20 00:19:30,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 00:19:30,969 INFO L471 AbstractCegarLoop]: Abstraction has 1364 states and 1986 transitions. [2024-11-20 00:19:30,969 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 15.722222222222221) internal successors, (283), 18 states have internal predecessors, (283), 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) [2024-11-20 00:19:30,970 INFO L276 IsEmpty]: Start isEmpty. Operand 1364 states and 1986 transitions. [2024-11-20 00:19:30,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 309 [2024-11-20 00:19:30,972 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 00:19:30,973 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 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] [2024-11-20 00:19:30,984 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-11-20 00:19:31,173 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,SelfDestructingSolverStorable11 [2024-11-20 00:19:31,174 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 00:19:31,174 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 00:19:31,174 INFO L85 PathProgramCache]: Analyzing trace with hash -165507135, now seen corresponding path program 2 times [2024-11-20 00:19:31,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 00:19:31,174 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1596281732] [2024-11-20 00:19:31,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:19:31,174 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 00:19:31,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:19:31,815 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-11-20 00:19:31,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:19:31,817 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-11-20 00:19:31,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:19:31,819 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2024-11-20 00:19:31,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:19:31,821 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2024-11-20 00:19:31,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:19:31,822 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2024-11-20 00:19:31,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:19:31,824 INFO L134 CoverageAnalysis]: Checked inductivity of 280 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 280 trivial. 0 not checked. [2024-11-20 00:19:31,824 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 00:19:31,824 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1596281732] [2024-11-20 00:19:31,824 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1596281732] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 00:19:31,824 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 00:19:31,825 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-20 00:19:31,825 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [710092017] [2024-11-20 00:19:31,825 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 00:19:31,825 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 00:19:31,825 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 00:19:31,826 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 00:19:31,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 00:19:31,827 INFO L87 Difference]: Start difference. First operand 1364 states and 1986 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) [2024-11-20 00:19:31,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 00:19:31,860 INFO L93 Difference]: Finished difference Result 1368 states and 1990 transitions. [2024-11-20 00:19:31,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 00:19:31,861 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 308 [2024-11-20 00:19:31,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 00:19:31,866 INFO L225 Difference]: With dead ends: 1368 [2024-11-20 00:19:31,866 INFO L226 Difference]: Without dead ends: 1366 [2024-11-20 00:19:31,866 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 [2024-11-20 00:19:31,867 INFO L432 NwaCegarLoop]: 1107 mSDtfsCounter, 0 mSDsluCounter, 2208 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3315 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-20 00:19:31,867 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3315 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 00:19:31,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1366 states. [2024-11-20 00:19:31,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1366 to 1366. [2024-11-20 00:19:31,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1366 states, 1349 states have (on average 1.4514455151964418) internal successors, (1958), 1349 states have internal predecessors, (1958), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-20 00:19:31,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1366 states to 1366 states and 1988 transitions. [2024-11-20 00:19:31,897 INFO L78 Accepts]: Start accepts. Automaton has 1366 states and 1988 transitions. Word has length 308 [2024-11-20 00:19:31,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 00:19:31,897 INFO L471 AbstractCegarLoop]: Abstraction has 1366 states and 1988 transitions. [2024-11-20 00:19:31,898 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) [2024-11-20 00:19:31,898 INFO L276 IsEmpty]: Start isEmpty. Operand 1366 states and 1988 transitions. [2024-11-20 00:19:31,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 310 [2024-11-20 00:19:31,900 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 00:19:31,901 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 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] [2024-11-20 00:19:31,901 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-20 00:19:31,901 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 00:19:31,901 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 00:19:31,902 INFO L85 PathProgramCache]: Analyzing trace with hash -834057377, now seen corresponding path program 1 times [2024-11-20 00:19:31,902 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 00:19:31,902 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1303973718] [2024-11-20 00:19:31,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:19:31,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 00:19:32,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:19:32,363 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-11-20 00:19:32,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:19:32,367 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-11-20 00:19:32,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:19:32,369 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2024-11-20 00:19:32,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:19:32,370 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2024-11-20 00:19:32,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:19:32,371 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2024-11-20 00:19:32,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:19:32,377 INFO L134 CoverageAnalysis]: Checked inductivity of 280 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 280 trivial. 0 not checked. [2024-11-20 00:19:32,377 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 00:19:32,377 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1303973718] [2024-11-20 00:19:32,377 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1303973718] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 00:19:32,377 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 00:19:32,377 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-20 00:19:32,377 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1215917269] [2024-11-20 00:19:32,377 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 00:19:32,378 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 00:19:32,378 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 00:19:32,378 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 00:19:32,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 00:19:32,379 INFO L87 Difference]: Start difference. First operand 1366 states and 1988 transitions. Second operand has 4 states, 4 states have (on average 57.75) internal successors, (231), 4 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) [2024-11-20 00:19:32,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 00:19:32,425 INFO L93 Difference]: Finished difference Result 2023 states and 2960 transitions. [2024-11-20 00:19:32,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 00:19:32,426 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 57.75) internal successors, (231), 4 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 309 [2024-11-20 00:19:32,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 00:19:32,431 INFO L225 Difference]: With dead ends: 2023 [2024-11-20 00:19:32,431 INFO L226 Difference]: Without dead ends: 1368 [2024-11-20 00:19:32,432 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 [2024-11-20 00:19:32,432 INFO L432 NwaCegarLoop]: 1107 mSDtfsCounter, 0 mSDsluCounter, 2204 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3311 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-20 00:19:32,433 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3311 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 00:19:32,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1368 states. [2024-11-20 00:19:32,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1368 to 1368. [2024-11-20 00:19:32,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1368 states, 1351 states have (on average 1.450777202072539) internal successors, (1960), 1351 states have internal predecessors, (1960), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-20 00:19:32,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1368 states to 1368 states and 1990 transitions. [2024-11-20 00:19:32,465 INFO L78 Accepts]: Start accepts. Automaton has 1368 states and 1990 transitions. Word has length 309 [2024-11-20 00:19:32,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 00:19:32,465 INFO L471 AbstractCegarLoop]: Abstraction has 1368 states and 1990 transitions. [2024-11-20 00:19:32,465 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 57.75) internal successors, (231), 4 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) [2024-11-20 00:19:32,466 INFO L276 IsEmpty]: Start isEmpty. Operand 1368 states and 1990 transitions. [2024-11-20 00:19:32,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 311 [2024-11-20 00:19:32,468 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 00:19:32,468 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 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] [2024-11-20 00:19:32,468 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-20 00:19:32,469 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 00:19:32,469 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 00:19:32,469 INFO L85 PathProgramCache]: Analyzing trace with hash -1183939494, now seen corresponding path program 1 times [2024-11-20 00:19:32,469 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 00:19:32,469 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1707337724] [2024-11-20 00:19:32,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:19:32,470 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 00:19:32,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:19:33,942 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-11-20 00:19:33,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:19:33,946 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-11-20 00:19:33,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:19:33,949 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2024-11-20 00:19:33,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:19:33,952 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2024-11-20 00:19:33,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:19:33,953 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2024-11-20 00:19:33,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:19:33,955 INFO L134 CoverageAnalysis]: Checked inductivity of 280 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 280 trivial. 0 not checked. [2024-11-20 00:19:33,955 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 00:19:33,955 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1707337724] [2024-11-20 00:19:33,955 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1707337724] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 00:19:33,956 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 00:19:33,956 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-20 00:19:33,956 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [947016001] [2024-11-20 00:19:33,956 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 00:19:33,956 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-20 00:19:33,957 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 00:19:33,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-20 00:19:33,958 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2024-11-20 00:19:33,958 INFO L87 Difference]: Start difference. First operand 1368 states and 1990 transitions. Second operand has 10 states, 10 states have (on average 23.2) internal successors, (232), 10 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) [2024-11-20 00:19:35,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 00:19:35,256 INFO L93 Difference]: Finished difference Result 2164 states and 3163 transitions. [2024-11-20 00:19:35,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-20 00:19:35,256 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 23.2) internal successors, (232), 10 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 310 [2024-11-20 00:19:35,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 00:19:35,263 INFO L225 Difference]: With dead ends: 2164 [2024-11-20 00:19:35,263 INFO L226 Difference]: Without dead ends: 1416 [2024-11-20 00:19:35,265 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2024-11-20 00:19:35,266 INFO L432 NwaCegarLoop]: 807 mSDtfsCounter, 1077 mSDsluCounter, 5582 mSDsCounter, 0 mSdLazyCounter, 2464 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1079 SdHoareTripleChecker+Valid, 6389 SdHoareTripleChecker+Invalid, 2467 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2464 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-20 00:19:35,266 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1079 Valid, 6389 Invalid, 2467 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 2464 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-20 00:19:35,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1416 states. [2024-11-20 00:19:35,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1416 to 1404. [2024-11-20 00:19:35,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1404 states, 1387 states have (on average 1.452054794520548) internal successors, (2014), 1387 states have internal predecessors, (2014), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-20 00:19:35,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1404 states to 1404 states and 2044 transitions. [2024-11-20 00:19:35,306 INFO L78 Accepts]: Start accepts. Automaton has 1404 states and 2044 transitions. Word has length 310 [2024-11-20 00:19:35,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 00:19:35,307 INFO L471 AbstractCegarLoop]: Abstraction has 1404 states and 2044 transitions. [2024-11-20 00:19:35,307 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 23.2) internal successors, (232), 10 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) [2024-11-20 00:19:35,307 INFO L276 IsEmpty]: Start isEmpty. Operand 1404 states and 2044 transitions. [2024-11-20 00:19:35,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 312 [2024-11-20 00:19:35,310 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 00:19:35,311 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 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] [2024-11-20 00:19:35,311 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-20 00:19:35,311 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 00:19:35,311 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 00:19:35,311 INFO L85 PathProgramCache]: Analyzing trace with hash 1862701153, now seen corresponding path program 1 times [2024-11-20 00:19:35,311 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 00:19:35,312 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1482446802] [2024-11-20 00:19:35,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:19:35,312 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 00:19:35,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:19:36,839 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-11-20 00:19:36,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:19:36,842 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-11-20 00:19:36,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:19:36,844 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2024-11-20 00:19:36,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:19:36,845 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2024-11-20 00:19:36,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:19:36,846 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2024-11-20 00:19:36,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:19:36,848 INFO L134 CoverageAnalysis]: Checked inductivity of 280 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 280 trivial. 0 not checked. [2024-11-20 00:19:36,848 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 00:19:36,848 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1482446802] [2024-11-20 00:19:36,849 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1482446802] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 00:19:36,849 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 00:19:36,849 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-20 00:19:36,849 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1393454636] [2024-11-20 00:19:36,849 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 00:19:36,850 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-20 00:19:36,850 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 00:19:36,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-20 00:19:36,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2024-11-20 00:19:36,851 INFO L87 Difference]: Start difference. First operand 1404 states and 2044 transitions. Second operand has 10 states, 10 states have (on average 23.3) internal successors, (233), 10 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) [2024-11-20 00:19:37,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 00:19:37,846 INFO L93 Difference]: Finished difference Result 2296 states and 3361 transitions. [2024-11-20 00:19:37,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-20 00:19:37,847 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 23.3) internal successors, (233), 10 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 311 [2024-11-20 00:19:37,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 00:19:37,851 INFO L225 Difference]: With dead ends: 2296 [2024-11-20 00:19:37,851 INFO L226 Difference]: Without dead ends: 1452 [2024-11-20 00:19:37,852 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2024-11-20 00:19:37,853 INFO L432 NwaCegarLoop]: 807 mSDtfsCounter, 1090 mSDsluCounter, 5603 mSDsCounter, 0 mSdLazyCounter, 2461 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1093 SdHoareTripleChecker+Valid, 6410 SdHoareTripleChecker+Invalid, 2464 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2461 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-20 00:19:37,853 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1093 Valid, 6410 Invalid, 2464 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 2461 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-20 00:19:37,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1452 states. [2024-11-20 00:19:37,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1452 to 1440. [2024-11-20 00:19:37,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1440 states, 1423 states have (on average 1.4532677442023894) internal successors, (2068), 1423 states have internal predecessors, (2068), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-20 00:19:37,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1440 states to 1440 states and 2098 transitions. [2024-11-20 00:19:37,883 INFO L78 Accepts]: Start accepts. Automaton has 1440 states and 2098 transitions. Word has length 311 [2024-11-20 00:19:37,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 00:19:37,883 INFO L471 AbstractCegarLoop]: Abstraction has 1440 states and 2098 transitions. [2024-11-20 00:19:37,884 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 23.3) internal successors, (233), 10 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) [2024-11-20 00:19:37,884 INFO L276 IsEmpty]: Start isEmpty. Operand 1440 states and 2098 transitions. [2024-11-20 00:19:37,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 313 [2024-11-20 00:19:37,887 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 00:19:37,887 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 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] [2024-11-20 00:19:37,887 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-20 00:19:37,887 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 00:19:37,888 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 00:19:37,888 INFO L85 PathProgramCache]: Analyzing trace with hash -512930195, now seen corresponding path program 1 times [2024-11-20 00:19:37,888 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 00:19:37,888 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1779528978] [2024-11-20 00:19:37,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:19:37,888 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 00:19:38,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:19:38,923 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-11-20 00:19:38,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:19:38,925 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-11-20 00:19:38,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:19:38,927 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2024-11-20 00:19:38,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:19:38,928 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2024-11-20 00:19:38,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:19:38,929 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2024-11-20 00:19:38,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:19:38,931 INFO L134 CoverageAnalysis]: Checked inductivity of 280 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 280 trivial. 0 not checked. [2024-11-20 00:19:38,931 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 00:19:38,932 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1779528978] [2024-11-20 00:19:38,932 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1779528978] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 00:19:38,932 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 00:19:38,932 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 00:19:38,932 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1396598277] [2024-11-20 00:19:38,932 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 00:19:38,933 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 00:19:38,933 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 00:19:38,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 00:19:38,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-20 00:19:38,938 INFO L87 Difference]: Start difference. First operand 1440 states and 2098 transitions. Second operand has 5 states, 5 states have (on average 46.8) internal successors, (234), 5 states have internal predecessors, (234), 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) [2024-11-20 00:19:38,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 00:19:38,997 INFO L93 Difference]: Finished difference Result 2277 states and 3337 transitions. [2024-11-20 00:19:38,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 00:19:38,998 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 46.8) internal successors, (234), 5 states have internal predecessors, (234), 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 312 [2024-11-20 00:19:38,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 00:19:39,003 INFO L225 Difference]: With dead ends: 2277 [2024-11-20 00:19:39,004 INFO L226 Difference]: Without dead ends: 1596 [2024-11-20 00:19:39,005 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-20 00:19:39,005 INFO L432 NwaCegarLoop]: 1103 mSDtfsCounter, 150 mSDsluCounter, 3300 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 4403 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-20 00:19:39,006 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [150 Valid, 4403 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 00:19:39,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1596 states. [2024-11-20 00:19:39,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1596 to 1594. [2024-11-20 00:19:39,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1594 states, 1577 states have (on average 1.4559289790741916) internal successors, (2296), 1577 states have internal predecessors, (2296), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-20 00:19:39,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1594 states to 1594 states and 2326 transitions. [2024-11-20 00:19:39,043 INFO L78 Accepts]: Start accepts. Automaton has 1594 states and 2326 transitions. Word has length 312 [2024-11-20 00:19:39,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 00:19:39,043 INFO L471 AbstractCegarLoop]: Abstraction has 1594 states and 2326 transitions. [2024-11-20 00:19:39,044 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 46.8) internal successors, (234), 5 states have internal predecessors, (234), 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) [2024-11-20 00:19:39,044 INFO L276 IsEmpty]: Start isEmpty. Operand 1594 states and 2326 transitions. [2024-11-20 00:19:39,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 314 [2024-11-20 00:19:39,047 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 00:19:39,047 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 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] [2024-11-20 00:19:39,047 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-20 00:19:39,047 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 00:19:39,048 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 00:19:39,049 INFO L85 PathProgramCache]: Analyzing trace with hash -2107045997, now seen corresponding path program 1 times [2024-11-20 00:19:39,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 00:19:39,049 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [834512126] [2024-11-20 00:19:39,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:19:39,050 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 00:19:39,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:19:40,286 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-11-20 00:19:40,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:19:40,290 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-11-20 00:19:40,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:19:40,292 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2024-11-20 00:19:40,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:19:40,293 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2024-11-20 00:19:40,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:19:40,295 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2024-11-20 00:19:40,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:19:40,296 INFO L134 CoverageAnalysis]: Checked inductivity of 280 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 280 trivial. 0 not checked. [2024-11-20 00:19:40,296 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 00:19:40,297 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [834512126] [2024-11-20 00:19:40,297 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [834512126] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 00:19:40,297 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 00:19:40,297 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-20 00:19:40,297 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1487290258] [2024-11-20 00:19:40,297 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 00:19:40,298 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-20 00:19:40,298 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 00:19:40,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-20 00:19:40,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-20 00:19:40,299 INFO L87 Difference]: Start difference. First operand 1594 states and 2326 transitions. Second operand has 7 states, 7 states have (on average 33.57142857142857) internal successors, (235), 7 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) [2024-11-20 00:19:40,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 00:19:40,469 INFO L93 Difference]: Finished difference Result 2672 states and 3921 transitions. [2024-11-20 00:19:40,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-20 00:19:40,471 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 33.57142857142857) internal successors, (235), 7 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 313 [2024-11-20 00:19:40,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 00:19:40,481 INFO L225 Difference]: With dead ends: 2672 [2024-11-20 00:19:40,483 INFO L226 Difference]: Without dead ends: 1636 [2024-11-20 00:19:40,485 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-11-20 00:19:40,486 INFO L432 NwaCegarLoop]: 1089 mSDtfsCounter, 1026 mSDsluCounter, 4277 mSDsCounter, 0 mSdLazyCounter, 160 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1029 SdHoareTripleChecker+Valid, 5366 SdHoareTripleChecker+Invalid, 161 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 160 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-20 00:19:40,486 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1029 Valid, 5366 Invalid, 161 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 160 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-20 00:19:40,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1636 states. [2024-11-20 00:19:40,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1636 to 1621. [2024-11-20 00:19:40,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1621 states, 1604 states have (on average 1.451995012468828) internal successors, (2329), 1604 states have internal predecessors, (2329), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-20 00:19:40,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1621 states to 1621 states and 2359 transitions. [2024-11-20 00:19:40,552 INFO L78 Accepts]: Start accepts. Automaton has 1621 states and 2359 transitions. Word has length 313 [2024-11-20 00:19:40,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 00:19:40,554 INFO L471 AbstractCegarLoop]: Abstraction has 1621 states and 2359 transitions. [2024-11-20 00:19:40,555 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 33.57142857142857) internal successors, (235), 7 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) [2024-11-20 00:19:40,555 INFO L276 IsEmpty]: Start isEmpty. Operand 1621 states and 2359 transitions. [2024-11-20 00:19:40,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 315 [2024-11-20 00:19:40,558 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 00:19:40,558 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 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] [2024-11-20 00:19:40,558 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-20 00:19:40,563 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 00:19:40,563 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 00:19:40,564 INFO L85 PathProgramCache]: Analyzing trace with hash -776765452, now seen corresponding path program 1 times [2024-11-20 00:19:40,564 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 00:19:40,564 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2145233880] [2024-11-20 00:19:40,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:19:40,564 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 00:19:40,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:19:41,383 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-11-20 00:19:41,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:19:41,388 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-11-20 00:19:41,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:19:41,390 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2024-11-20 00:19:41,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:19:41,394 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2024-11-20 00:19:41,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:19:41,396 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2024-11-20 00:19:41,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:19:41,399 INFO L134 CoverageAnalysis]: Checked inductivity of 280 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 280 trivial. 0 not checked. [2024-11-20 00:19:41,400 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 00:19:41,401 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2145233880] [2024-11-20 00:19:41,401 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2145233880] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 00:19:41,401 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 00:19:41,402 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-20 00:19:41,402 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1048323937] [2024-11-20 00:19:41,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 00:19:41,402 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 00:19:41,403 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 00:19:41,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 00:19:41,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-20 00:19:41,405 INFO L87 Difference]: Start difference. First operand 1621 states and 2359 transitions. Second operand has 6 states, 6 states have (on average 39.333333333333336) internal successors, (236), 6 states have internal predecessors, (236), 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) [2024-11-20 00:19:42,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 00:19:42,388 INFO L93 Difference]: Finished difference Result 3019 states and 4425 transitions. [2024-11-20 00:19:42,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-20 00:19:42,388 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), 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 314 [2024-11-20 00:19:42,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 00:19:42,395 INFO L225 Difference]: With dead ends: 3019 [2024-11-20 00:19:42,396 INFO L226 Difference]: Without dead ends: 2175 [2024-11-20 00:19:42,397 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-20 00:19:42,398 INFO L432 NwaCegarLoop]: 1366 mSDtfsCounter, 1967 mSDsluCounter, 3497 mSDsCounter, 0 mSdLazyCounter, 1715 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1972 SdHoareTripleChecker+Valid, 4863 SdHoareTripleChecker+Invalid, 1715 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1715 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-20 00:19:42,398 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1972 Valid, 4863 Invalid, 1715 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1715 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-20 00:19:42,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2175 states. [2024-11-20 00:19:42,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2175 to 1619. [2024-11-20 00:19:42,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1619 states, 1602 states have (on average 1.4525593008739077) internal successors, (2327), 1602 states have internal predecessors, (2327), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-20 00:19:42,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1619 states to 1619 states and 2357 transitions. [2024-11-20 00:19:42,431 INFO L78 Accepts]: Start accepts. Automaton has 1619 states and 2357 transitions. Word has length 314 [2024-11-20 00:19:42,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 00:19:42,431 INFO L471 AbstractCegarLoop]: Abstraction has 1619 states and 2357 transitions. [2024-11-20 00:19:42,431 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), 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) [2024-11-20 00:19:42,431 INFO L276 IsEmpty]: Start isEmpty. Operand 1619 states and 2357 transitions. [2024-11-20 00:19:42,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 316 [2024-11-20 00:19:42,434 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 00:19:42,434 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 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] [2024-11-20 00:19:42,434 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-20 00:19:42,435 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 00:19:42,435 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 00:19:42,435 INFO L85 PathProgramCache]: Analyzing trace with hash 62725309, now seen corresponding path program 1 times [2024-11-20 00:19:42,435 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 00:19:42,436 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1586056578] [2024-11-20 00:19:42,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:19:42,436 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 00:19:42,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:19:42,876 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-11-20 00:19:42,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:19:42,878 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-11-20 00:19:42,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:19:42,879 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2024-11-20 00:19:42,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:19:42,917 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2024-11-20 00:19:42,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:19:42,918 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2024-11-20 00:19:42,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:19:42,922 INFO L134 CoverageAnalysis]: Checked inductivity of 280 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 280 trivial. 0 not checked. [2024-11-20 00:19:42,922 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 00:19:42,922 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1586056578] [2024-11-20 00:19:42,922 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1586056578] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 00:19:42,923 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 00:19:42,923 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 00:19:42,923 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1487535074] [2024-11-20 00:19:42,923 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 00:19:42,924 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 00:19:42,924 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 00:19:42,925 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 00:19:42,925 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-20 00:19:42,925 INFO L87 Difference]: Start difference. First operand 1619 states and 2357 transitions. Second operand has 5 states, 5 states have (on average 47.4) internal successors, (237), 5 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) [2024-11-20 00:19:42,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 00:19:42,994 INFO L93 Difference]: Finished difference Result 2981 states and 4360 transitions. [2024-11-20 00:19:42,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 00:19:42,995 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 47.4) internal successors, (237), 5 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 315 [2024-11-20 00:19:42,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 00:19:43,006 INFO L225 Difference]: With dead ends: 2981 [2024-11-20 00:19:43,006 INFO L226 Difference]: Without dead ends: 2132 [2024-11-20 00:19:43,008 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-20 00:19:43,010 INFO L432 NwaCegarLoop]: 1106 mSDtfsCounter, 496 mSDsluCounter, 3299 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 496 SdHoareTripleChecker+Valid, 4405 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-20 00:19:43,010 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [496 Valid, 4405 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 00:19:43,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2132 states. [2024-11-20 00:19:43,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2132 to 1631. [2024-11-20 00:19:43,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1631 states, 1614 states have (on average 1.449194547707559) internal successors, (2339), 1614 states have internal predecessors, (2339), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-20 00:19:43,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1631 states to 1631 states and 2369 transitions. [2024-11-20 00:19:43,049 INFO L78 Accepts]: Start accepts. Automaton has 1631 states and 2369 transitions. Word has length 315 [2024-11-20 00:19:43,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 00:19:43,049 INFO L471 AbstractCegarLoop]: Abstraction has 1631 states and 2369 transitions. [2024-11-20 00:19:43,050 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 47.4) internal successors, (237), 5 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) [2024-11-20 00:19:43,050 INFO L276 IsEmpty]: Start isEmpty. Operand 1631 states and 2369 transitions. [2024-11-20 00:19:43,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 316 [2024-11-20 00:19:43,053 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 00:19:43,053 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 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] [2024-11-20 00:19:43,053 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-20 00:19:43,053 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 00:19:43,054 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 00:19:43,054 INFO L85 PathProgramCache]: Analyzing trace with hash -33523487, now seen corresponding path program 1 times [2024-11-20 00:19:43,054 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 00:19:43,054 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1239763377] [2024-11-20 00:19:43,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:19:43,054 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 00:19:43,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:19:44,281 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-11-20 00:19:44,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:19:44,285 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2024-11-20 00:19:44,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:19:44,287 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2024-11-20 00:19:44,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:19:44,291 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2024-11-20 00:19:44,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:19:44,293 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2024-11-20 00:19:44,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:19:44,297 INFO L134 CoverageAnalysis]: Checked inductivity of 280 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 280 trivial. 0 not checked. [2024-11-20 00:19:44,298 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 00:19:44,298 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1239763377] [2024-11-20 00:19:44,298 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1239763377] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 00:19:44,298 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 00:19:44,298 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-20 00:19:44,298 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1046304627] [2024-11-20 00:19:44,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 00:19:44,299 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-20 00:19:44,299 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 00:19:44,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-20 00:19:44,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-11-20 00:19:44,300 INFO L87 Difference]: Start difference. First operand 1631 states and 2369 transitions. Second operand has 8 states, 8 states have (on average 29.625) internal successors, (237), 8 states have internal predecessors, (237), 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) [2024-11-20 00:19:45,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 00:19:45,763 INFO L93 Difference]: Finished difference Result 4803 states and 7029 transitions. [2024-11-20 00:19:45,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-20 00:19:45,763 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 29.625) internal successors, (237), 8 states have internal predecessors, (237), 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 315 [2024-11-20 00:19:45,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 00:19:45,771 INFO L225 Difference]: With dead ends: 4803 [2024-11-20 00:19:45,771 INFO L226 Difference]: Without dead ends: 3906 [2024-11-20 00:19:45,772 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2024-11-20 00:19:45,773 INFO L432 NwaCegarLoop]: 1435 mSDtfsCounter, 2784 mSDsluCounter, 5810 mSDsCounter, 0 mSdLazyCounter, 2595 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2792 SdHoareTripleChecker+Valid, 7245 SdHoareTripleChecker+Invalid, 2596 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2595 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-20 00:19:45,773 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2792 Valid, 7245 Invalid, 2596 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2595 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-20 00:19:45,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3906 states. [2024-11-20 00:19:45,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3906 to 2201. [2024-11-20 00:19:45,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2201 states, 2169 states have (on average 1.454587367450438) internal successors, (3155), 2169 states have internal predecessors, (3155), 30 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2024-11-20 00:19:45,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2201 states to 2201 states and 3215 transitions. [2024-11-20 00:19:45,824 INFO L78 Accepts]: Start accepts. Automaton has 2201 states and 3215 transitions. Word has length 315 [2024-11-20 00:19:45,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 00:19:45,824 INFO L471 AbstractCegarLoop]: Abstraction has 2201 states and 3215 transitions. [2024-11-20 00:19:45,824 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 29.625) internal successors, (237), 8 states have internal predecessors, (237), 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) [2024-11-20 00:19:45,825 INFO L276 IsEmpty]: Start isEmpty. Operand 2201 states and 3215 transitions. [2024-11-20 00:19:45,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 316 [2024-11-20 00:19:45,829 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 00:19:45,829 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 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] [2024-11-20 00:19:45,829 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-20 00:19:45,829 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 00:19:45,830 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 00:19:45,830 INFO L85 PathProgramCache]: Analyzing trace with hash -509204369, now seen corresponding path program 1 times [2024-11-20 00:19:45,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 00:19:45,830 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1199714450] [2024-11-20 00:19:45,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:19:45,831 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 00:19:46,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:19:46,624 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-11-20 00:19:46,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:19:46,629 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2024-11-20 00:19:46,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:19:46,634 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2024-11-20 00:19:46,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:19:46,639 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2024-11-20 00:19:46,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:19:46,642 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2024-11-20 00:19:46,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:19:46,645 INFO L134 CoverageAnalysis]: Checked inductivity of 280 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 280 trivial. 0 not checked. [2024-11-20 00:19:46,646 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 00:19:46,646 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1199714450] [2024-11-20 00:19:46,646 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1199714450] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 00:19:46,647 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 00:19:46,647 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-20 00:19:46,647 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [664778192] [2024-11-20 00:19:46,647 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 00:19:46,648 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 00:19:46,648 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 00:19:46,649 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 00:19:46,649 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-20 00:19:46,649 INFO L87 Difference]: Start difference. First operand 2201 states and 3215 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) [2024-11-20 00:19:47,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 00:19:47,496 INFO L93 Difference]: Finished difference Result 3773 states and 5531 transitions. [2024-11-20 00:19:47,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-20 00:19:47,499 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 315 [2024-11-20 00:19:47,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 00:19:47,509 INFO L225 Difference]: With dead ends: 3773 [2024-11-20 00:19:47,509 INFO L226 Difference]: Without dead ends: 2923 [2024-11-20 00:19:47,512 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-20 00:19:47,512 INFO L432 NwaCegarLoop]: 809 mSDtfsCounter, 1747 mSDsluCounter, 2352 mSDsCounter, 0 mSdLazyCounter, 1165 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1752 SdHoareTripleChecker+Valid, 3161 SdHoareTripleChecker+Invalid, 1168 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-20 00:19:47,512 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1752 Valid, 3161 Invalid, 1168 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1165 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-20 00:19:47,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2923 states. [2024-11-20 00:19:47,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2923 to 1405. [2024-11-20 00:19:47,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1405 states, 1388 states have (on average 1.457492795389049) internal successors, (2023), 1388 states have internal predecessors, (2023), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-20 00:19:47,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1405 states to 1405 states and 2053 transitions. [2024-11-20 00:19:47,560 INFO L78 Accepts]: Start accepts. Automaton has 1405 states and 2053 transitions. Word has length 315 [2024-11-20 00:19:47,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 00:19:47,560 INFO L471 AbstractCegarLoop]: Abstraction has 1405 states and 2053 transitions. [2024-11-20 00:19:47,561 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) [2024-11-20 00:19:47,561 INFO L276 IsEmpty]: Start isEmpty. Operand 1405 states and 2053 transitions. [2024-11-20 00:19:47,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 316 [2024-11-20 00:19:47,564 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 00:19:47,564 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 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] [2024-11-20 00:19:47,565 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-20 00:19:47,565 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 00:19:47,565 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 00:19:47,565 INFO L85 PathProgramCache]: Analyzing trace with hash -830195345, now seen corresponding path program 1 times [2024-11-20 00:19:47,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 00:19:47,566 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1460569667] [2024-11-20 00:19:47,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:19:47,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 00:19:47,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:19:48,079 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-11-20 00:19:48,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:19:48,081 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-11-20 00:19:48,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:19:48,083 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2024-11-20 00:19:48,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:19:48,084 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2024-11-20 00:19:48,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:19:48,085 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2024-11-20 00:19:48,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:19:48,087 INFO L134 CoverageAnalysis]: Checked inductivity of 280 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 280 trivial. 0 not checked. [2024-11-20 00:19:48,088 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 00:19:48,088 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1460569667] [2024-11-20 00:19:48,088 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1460569667] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 00:19:48,088 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 00:19:48,088 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-20 00:19:48,089 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1702204656] [2024-11-20 00:19:48,089 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 00:19:48,089 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 00:19:48,089 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 00:19:48,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 00:19:48,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 00:19:48,090 INFO L87 Difference]: Start difference. First operand 1405 states and 2053 transitions. Second operand has 4 states, 4 states have (on average 59.25) internal successors, (237), 4 states have internal predecessors, (237), 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) [2024-11-20 00:19:48,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 00:19:48,149 INFO L93 Difference]: Finished difference Result 2426 states and 3552 transitions. [2024-11-20 00:19:48,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 00:19:48,149 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 59.25) internal successors, (237), 4 states have internal predecessors, (237), 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 315 [2024-11-20 00:19:48,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 00:19:48,153 INFO L225 Difference]: With dead ends: 2426 [2024-11-20 00:19:48,153 INFO L226 Difference]: Without dead ends: 1405 [2024-11-20 00:19:48,154 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-20 00:19:48,155 INFO L432 NwaCegarLoop]: 1093 mSDtfsCounter, 1012 mSDsluCounter, 1100 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1015 SdHoareTripleChecker+Valid, 2193 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-20 00:19:48,155 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1015 Valid, 2193 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 00:19:48,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1405 states. [2024-11-20 00:19:48,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1405 to 1394. [2024-11-20 00:19:48,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1394 states, 1377 states have (on average 1.4553376906318083) internal successors, (2004), 1377 states have internal predecessors, (2004), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-20 00:19:48,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1394 states to 1394 states and 2034 transitions. [2024-11-20 00:19:48,183 INFO L78 Accepts]: Start accepts. Automaton has 1394 states and 2034 transitions. Word has length 315 [2024-11-20 00:19:48,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 00:19:48,184 INFO L471 AbstractCegarLoop]: Abstraction has 1394 states and 2034 transitions. [2024-11-20 00:19:48,184 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 59.25) internal successors, (237), 4 states have internal predecessors, (237), 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) [2024-11-20 00:19:48,184 INFO L276 IsEmpty]: Start isEmpty. Operand 1394 states and 2034 transitions. [2024-11-20 00:19:48,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 316 [2024-11-20 00:19:48,187 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 00:19:48,187 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 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] [2024-11-20 00:19:48,188 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-20 00:19:48,188 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 00:19:48,188 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 00:19:48,188 INFO L85 PathProgramCache]: Analyzing trace with hash 1848378707, now seen corresponding path program 1 times [2024-11-20 00:19:48,188 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 00:19:48,189 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [790409610] [2024-11-20 00:19:48,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:19:48,189 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 00:19:48,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:19:48,873 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-11-20 00:19:48,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:19:48,876 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-11-20 00:19:48,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:19:48,877 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2024-11-20 00:19:48,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:19:48,880 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2024-11-20 00:19:48,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:19:48,881 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2024-11-20 00:19:48,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:19:48,886 INFO L134 CoverageAnalysis]: Checked inductivity of 280 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 280 trivial. 0 not checked. [2024-11-20 00:19:48,886 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 00:19:48,886 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [790409610] [2024-11-20 00:19:48,887 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [790409610] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 00:19:48,887 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 00:19:48,887 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-20 00:19:48,887 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1429881098] [2024-11-20 00:19:48,887 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 00:19:48,888 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-20 00:19:48,888 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 00:19:48,888 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-20 00:19:48,888 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-20 00:19:48,889 INFO L87 Difference]: Start difference. First operand 1394 states and 2034 transitions. Second operand has 7 states, 7 states have (on average 33.857142857142854) internal successors, (237), 7 states have internal predecessors, (237), 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) [2024-11-20 00:19:49,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 00:19:49,569 INFO L93 Difference]: Finished difference Result 2314 states and 3383 transitions. [2024-11-20 00:19:49,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-20 00:19:49,570 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 33.857142857142854) internal successors, (237), 7 states have internal predecessors, (237), 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 315 [2024-11-20 00:19:49,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 00:19:49,572 INFO L225 Difference]: With dead ends: 2314 [2024-11-20 00:19:49,572 INFO L226 Difference]: Without dead ends: 1406 [2024-11-20 00:19:49,573 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2024-11-20 00:19:49,574 INFO L432 NwaCegarLoop]: 801 mSDtfsCounter, 2047 mSDsluCounter, 2392 mSDsCounter, 0 mSdLazyCounter, 1240 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2048 SdHoareTripleChecker+Valid, 3193 SdHoareTripleChecker+Invalid, 1243 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1240 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-20 00:19:49,574 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2048 Valid, 3193 Invalid, 1243 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1240 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-20 00:19:49,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1406 states. [2024-11-20 00:19:49,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1406 to 1400. [2024-11-20 00:19:49,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1400 states, 1383 states have (on average 1.4511930585683297) internal successors, (2007), 1383 states have internal predecessors, (2007), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-20 00:19:49,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1400 states to 1400 states and 2037 transitions. [2024-11-20 00:19:49,601 INFO L78 Accepts]: Start accepts. Automaton has 1400 states and 2037 transitions. Word has length 315 [2024-11-20 00:19:49,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 00:19:49,602 INFO L471 AbstractCegarLoop]: Abstraction has 1400 states and 2037 transitions. [2024-11-20 00:19:49,602 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 33.857142857142854) internal successors, (237), 7 states have internal predecessors, (237), 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) [2024-11-20 00:19:49,602 INFO L276 IsEmpty]: Start isEmpty. Operand 1400 states and 2037 transitions. [2024-11-20 00:19:49,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 317 [2024-11-20 00:19:49,604 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 00:19:49,605 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 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] [2024-11-20 00:19:49,605 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-20 00:19:49,605 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 00:19:49,605 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 00:19:49,605 INFO L85 PathProgramCache]: Analyzing trace with hash -137891540, now seen corresponding path program 1 times [2024-11-20 00:19:49,606 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 00:19:49,606 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2077894817] [2024-11-20 00:19:49,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:19:49,606 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 00:19:49,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:19:50,289 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-11-20 00:19:50,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:19:50,292 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-11-20 00:19:50,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:19:50,294 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2024-11-20 00:19:50,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:19:50,295 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2024-11-20 00:19:50,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:19:50,297 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2024-11-20 00:19:50,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:19:50,299 INFO L134 CoverageAnalysis]: Checked inductivity of 280 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 280 trivial. 0 not checked. [2024-11-20 00:19:50,299 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 00:19:50,299 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2077894817] [2024-11-20 00:19:50,299 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2077894817] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 00:19:50,299 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 00:19:50,299 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-20 00:19:50,300 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1710952934] [2024-11-20 00:19:50,300 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 00:19:50,300 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 00:19:50,300 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 00:19:50,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 00:19:50,301 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-20 00:19:50,301 INFO L87 Difference]: Start difference. First operand 1400 states and 2037 transitions. Second operand has 6 states, 6 states have (on average 39.666666666666664) internal successors, (238), 6 states have internal predecessors, (238), 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) [2024-11-20 00:19:51,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 00:19:51,057 INFO L93 Difference]: Finished difference Result 2308 states and 3366 transitions. [2024-11-20 00:19:51,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-20 00:19:51,058 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 39.666666666666664) internal successors, (238), 6 states have internal predecessors, (238), 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 316 [2024-11-20 00:19:51,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 00:19:51,060 INFO L225 Difference]: With dead ends: 2308 [2024-11-20 00:19:51,060 INFO L226 Difference]: Without dead ends: 1406 [2024-11-20 00:19:51,061 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-20 00:19:51,062 INFO L432 NwaCegarLoop]: 801 mSDtfsCounter, 994 mSDsluCounter, 2392 mSDsCounter, 0 mSdLazyCounter, 1240 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 995 SdHoareTripleChecker+Valid, 3193 SdHoareTripleChecker+Invalid, 1240 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1240 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-20 00:19:51,062 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [995 Valid, 3193 Invalid, 1240 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1240 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-20 00:19:51,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1406 states. [2024-11-20 00:19:51,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1406 to 1403. [2024-11-20 00:19:51,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1403 states, 1386 states have (on average 1.4502164502164503) internal successors, (2010), 1386 states have internal predecessors, (2010), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-20 00:19:51,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1403 states to 1403 states and 2040 transitions. [2024-11-20 00:19:51,090 INFO L78 Accepts]: Start accepts. Automaton has 1403 states and 2040 transitions. Word has length 316 [2024-11-20 00:19:51,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 00:19:51,091 INFO L471 AbstractCegarLoop]: Abstraction has 1403 states and 2040 transitions. [2024-11-20 00:19:51,091 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 39.666666666666664) internal successors, (238), 6 states have internal predecessors, (238), 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) [2024-11-20 00:19:51,091 INFO L276 IsEmpty]: Start isEmpty. Operand 1403 states and 2040 transitions. [2024-11-20 00:19:51,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 318 [2024-11-20 00:19:51,093 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 00:19:51,093 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 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] [2024-11-20 00:19:51,094 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-20 00:19:51,094 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 00:19:51,094 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 00:19:51,094 INFO L85 PathProgramCache]: Analyzing trace with hash 1290162294, now seen corresponding path program 1 times [2024-11-20 00:19:51,094 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 00:19:51,095 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [176906800] [2024-11-20 00:19:51,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:19:51,095 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 00:19:51,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:19:51,817 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-11-20 00:19:51,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:19:51,819 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-11-20 00:19:51,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:19:51,820 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2024-11-20 00:19:51,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:19:51,821 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2024-11-20 00:19:51,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:19:51,822 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2024-11-20 00:19:51,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:19:51,823 INFO L134 CoverageAnalysis]: Checked inductivity of 280 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 280 trivial. 0 not checked. [2024-11-20 00:19:51,823 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 00:19:51,824 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [176906800] [2024-11-20 00:19:51,824 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [176906800] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 00:19:51,824 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 00:19:51,824 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-20 00:19:51,824 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1753774429] [2024-11-20 00:19:51,824 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 00:19:51,825 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-20 00:19:51,825 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 00:19:51,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-20 00:19:51,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-20 00:19:51,826 INFO L87 Difference]: Start difference. First operand 1403 states and 2040 transitions. Second operand has 7 states, 7 states have (on average 34.142857142857146) internal successors, (239), 7 states have internal predecessors, (239), 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) [2024-11-20 00:19:51,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 00:19:51,890 INFO L93 Difference]: Finished difference Result 2255 states and 3292 transitions. [2024-11-20 00:19:51,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-20 00:19:51,891 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 34.142857142857146) internal successors, (239), 7 states have internal predecessors, (239), 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 317 [2024-11-20 00:19:51,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 00:19:51,893 INFO L225 Difference]: With dead ends: 2255 [2024-11-20 00:19:51,893 INFO L226 Difference]: Without dead ends: 1407 [2024-11-20 00:19:51,894 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-20 00:19:51,894 INFO L432 NwaCegarLoop]: 1100 mSDtfsCounter, 149 mSDsluCounter, 5483 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 6583 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-20 00:19:51,895 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [149 Valid, 6583 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 00:19:51,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1407 states. [2024-11-20 00:19:51,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1407 to 1406. [2024-11-20 00:19:51,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1406 states, 1389 states have (on average 1.4499640028797696) internal successors, (2014), 1389 states have internal predecessors, (2014), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-20 00:19:51,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1406 states to 1406 states and 2044 transitions. [2024-11-20 00:19:51,919 INFO L78 Accepts]: Start accepts. Automaton has 1406 states and 2044 transitions. Word has length 317 [2024-11-20 00:19:51,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 00:19:51,920 INFO L471 AbstractCegarLoop]: Abstraction has 1406 states and 2044 transitions. [2024-11-20 00:19:51,920 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 34.142857142857146) internal successors, (239), 7 states have internal predecessors, (239), 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) [2024-11-20 00:19:51,920 INFO L276 IsEmpty]: Start isEmpty. Operand 1406 states and 2044 transitions. [2024-11-20 00:19:51,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 318 [2024-11-20 00:19:51,922 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 00:19:51,923 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 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] [2024-11-20 00:19:51,923 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-20 00:19:51,923 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 00:19:51,923 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 00:19:51,924 INFO L85 PathProgramCache]: Analyzing trace with hash -1925424159, now seen corresponding path program 1 times [2024-11-20 00:19:51,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 00:19:51,924 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [688594034] [2024-11-20 00:19:51,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:19:51,924 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 00:19:52,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:19:52,390 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-11-20 00:19:52,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:19:52,392 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-11-20 00:19:52,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:19:52,393 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2024-11-20 00:19:52,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:19:52,394 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2024-11-20 00:19:52,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:19:52,396 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2024-11-20 00:19:52,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:19:52,397 INFO L134 CoverageAnalysis]: Checked inductivity of 280 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 280 trivial. 0 not checked. [2024-11-20 00:19:52,397 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 00:19:52,398 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [688594034] [2024-11-20 00:19:52,398 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [688594034] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 00:19:52,398 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 00:19:52,398 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-20 00:19:52,398 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [942613338] [2024-11-20 00:19:52,398 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 00:19:52,399 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 00:19:52,399 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 00:19:52,399 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 00:19:52,400 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-20 00:19:52,400 INFO L87 Difference]: Start difference. First operand 1406 states and 2044 transitions. Second operand has 6 states, 6 states have (on average 39.833333333333336) internal successors, (239), 6 states have internal predecessors, (239), 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) [2024-11-20 00:19:52,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 00:19:52,453 INFO L93 Difference]: Finished difference Result 2344 states and 3412 transitions. [2024-11-20 00:19:52,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 00:19:52,453 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 39.833333333333336) internal successors, (239), 6 states have internal predecessors, (239), 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 317 [2024-11-20 00:19:52,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 00:19:52,456 INFO L225 Difference]: With dead ends: 2344 [2024-11-20 00:19:52,456 INFO L226 Difference]: Without dead ends: 1493 [2024-11-20 00:19:52,458 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-20 00:19:52,458 INFO L432 NwaCegarLoop]: 1104 mSDtfsCounter, 38 mSDsluCounter, 3300 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 4404 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-20 00:19:52,458 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 4404 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 00:19:52,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1493 states. [2024-11-20 00:19:52,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1493 to 1493. [2024-11-20 00:19:52,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1493 states, 1476 states have (on average 1.4437669376693767) internal successors, (2131), 1476 states have internal predecessors, (2131), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-20 00:19:52,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1493 states to 1493 states and 2161 transitions. [2024-11-20 00:19:52,487 INFO L78 Accepts]: Start accepts. Automaton has 1493 states and 2161 transitions. Word has length 317 [2024-11-20 00:19:52,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 00:19:52,488 INFO L471 AbstractCegarLoop]: Abstraction has 1493 states and 2161 transitions. [2024-11-20 00:19:52,488 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 39.833333333333336) internal successors, (239), 6 states have internal predecessors, (239), 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) [2024-11-20 00:19:52,488 INFO L276 IsEmpty]: Start isEmpty. Operand 1493 states and 2161 transitions. [2024-11-20 00:19:52,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 319 [2024-11-20 00:19:52,491 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 00:19:52,491 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 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, 1] [2024-11-20 00:19:52,492 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-20 00:19:52,492 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 00:19:52,492 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 00:19:52,492 INFO L85 PathProgramCache]: Analyzing trace with hash 1659673095, now seen corresponding path program 1 times [2024-11-20 00:19:52,492 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 00:19:52,493 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [342146877] [2024-11-20 00:19:52,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:19:52,493 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 00:19:52,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:19:53,533 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-11-20 00:19:53,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:19:53,537 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-11-20 00:19:53,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:19:53,540 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2024-11-20 00:19:53,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:19:53,542 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2024-11-20 00:19:53,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:19:53,547 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2024-11-20 00:19:53,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:19:53,551 INFO L134 CoverageAnalysis]: Checked inductivity of 280 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 280 trivial. 0 not checked. [2024-11-20 00:19:53,552 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 00:19:53,552 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [342146877] [2024-11-20 00:19:53,552 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [342146877] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 00:19:53,552 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 00:19:53,552 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-20 00:19:53,553 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [281869857] [2024-11-20 00:19:53,553 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 00:19:53,553 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-20 00:19:53,554 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 00:19:53,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-20 00:19:53,554 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-20 00:19:53,555 INFO L87 Difference]: Start difference. First operand 1493 states and 2161 transitions. Second operand has 7 states, 7 states have (on average 34.285714285714285) internal successors, (240), 7 states have internal predecessors, (240), 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) [2024-11-20 00:19:53,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 00:19:53,725 INFO L93 Difference]: Finished difference Result 2751 states and 4008 transitions. [2024-11-20 00:19:53,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-20 00:19:53,726 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 34.285714285714285) internal successors, (240), 7 states have internal predecessors, (240), 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 318 [2024-11-20 00:19:53,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 00:19:53,730 INFO L225 Difference]: With dead ends: 2751 [2024-11-20 00:19:53,730 INFO L226 Difference]: Without dead ends: 1848 [2024-11-20 00:19:53,731 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-11-20 00:19:53,732 INFO L432 NwaCegarLoop]: 1090 mSDtfsCounter, 1785 mSDsluCounter, 4348 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1790 SdHoareTripleChecker+Valid, 5438 SdHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-20 00:19:53,732 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1790 Valid, 5438 Invalid, 111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-20 00:19:53,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1848 states. [2024-11-20 00:19:53,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1848 to 1843. [2024-11-20 00:19:53,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1843 states, 1826 states have (on average 1.450711938663746) internal successors, (2649), 1826 states have internal predecessors, (2649), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-20 00:19:53,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1843 states to 1843 states and 2679 transitions. [2024-11-20 00:19:53,776 INFO L78 Accepts]: Start accepts. Automaton has 1843 states and 2679 transitions. Word has length 318 [2024-11-20 00:19:53,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 00:19:53,777 INFO L471 AbstractCegarLoop]: Abstraction has 1843 states and 2679 transitions. [2024-11-20 00:19:53,777 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 34.285714285714285) internal successors, (240), 7 states have internal predecessors, (240), 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) [2024-11-20 00:19:53,777 INFO L276 IsEmpty]: Start isEmpty. Operand 1843 states and 2679 transitions. [2024-11-20 00:19:53,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 682 [2024-11-20 00:19:53,786 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 00:19:53,787 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 8, 8, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 00:19:53,787 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-11-20 00:19:53,787 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 00:19:53,788 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 00:19:53,788 INFO L85 PathProgramCache]: Analyzing trace with hash -225499511, now seen corresponding path program 1 times [2024-11-20 00:19:53,788 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 00:19:53,788 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [685276817] [2024-11-20 00:19:53,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:19:53,789 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 00:19:54,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:19:54,676 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-11-20 00:19:54,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:19:54,678 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-11-20 00:19:54,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:19:54,679 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2024-11-20 00:19:54,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:19:54,680 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2024-11-20 00:19:54,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:19:54,681 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2024-11-20 00:19:54,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:19:54,683 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 486 [2024-11-20 00:19:54,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:19:54,684 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 498 [2024-11-20 00:19:54,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:19:54,685 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 522 [2024-11-20 00:19:54,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:19:54,686 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 543 [2024-11-20 00:19:54,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:19:54,687 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 555 [2024-11-20 00:19:54,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:19:54,689 INFO L134 CoverageAnalysis]: Checked inductivity of 598 backedges. 178 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-20 00:19:54,689 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 00:19:54,690 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [685276817] [2024-11-20 00:19:54,690 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [685276817] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 00:19:54,690 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 00:19:54,690 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-20 00:19:54,690 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1766826260] [2024-11-20 00:19:54,690 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 00:19:54,691 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 00:19:54,691 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 00:19:54,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 00:19:54,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 00:19:54,692 INFO L87 Difference]: Start difference. First operand 1843 states and 2679 transitions. Second operand has 3 states, 3 states have (on average 192.66666666666666) internal successors, (578), 3 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) [2024-11-20 00:19:54,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 00:19:54,725 INFO L93 Difference]: Finished difference Result 2748 states and 4004 transitions. [2024-11-20 00:19:54,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 00:19:54,726 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 192.66666666666666) internal successors, (578), 3 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 681 [2024-11-20 00:19:54,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 00:19:54,730 INFO L225 Difference]: With dead ends: 2748 [2024-11-20 00:19:54,730 INFO L226 Difference]: Without dead ends: 1845 [2024-11-20 00:19:54,732 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 [2024-11-20 00:19:54,736 INFO L432 NwaCegarLoop]: 1105 mSDtfsCounter, 1 mSDsluCounter, 1101 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 2206 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 [2024-11-20 00:19:54,737 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 2206 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 00:19:54,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1845 states. [2024-11-20 00:19:54,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1845 to 1844. [2024-11-20 00:19:54,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1844 states, 1827 states have (on average 1.4504652435686918) internal successors, (2650), 1827 states have internal predecessors, (2650), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-20 00:19:54,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1844 states to 1844 states and 2680 transitions. [2024-11-20 00:19:54,771 INFO L78 Accepts]: Start accepts. Automaton has 1844 states and 2680 transitions. Word has length 681 [2024-11-20 00:19:54,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 00:19:54,772 INFO L471 AbstractCegarLoop]: Abstraction has 1844 states and 2680 transitions. [2024-11-20 00:19:54,773 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 192.66666666666666) internal successors, (578), 3 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) [2024-11-20 00:19:54,773 INFO L276 IsEmpty]: Start isEmpty. Operand 1844 states and 2680 transitions. [2024-11-20 00:19:54,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 684 [2024-11-20 00:19:54,778 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 00:19:54,779 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 8, 8, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 00:19:54,779 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-11-20 00:19:54,779 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 00:19:54,779 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 00:19:54,780 INFO L85 PathProgramCache]: Analyzing trace with hash 337553547, now seen corresponding path program 1 times [2024-11-20 00:19:54,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 00:19:54,780 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1660482257] [2024-11-20 00:19:54,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:19:54,780 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 00:19:55,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:19:55,609 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-11-20 00:19:55,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:19:55,611 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-11-20 00:19:55,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:19:55,612 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2024-11-20 00:19:55,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:19:55,613 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2024-11-20 00:19:55,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:19:55,614 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2024-11-20 00:19:55,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:19:55,615 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 488 [2024-11-20 00:19:55,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:19:55,616 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 500 [2024-11-20 00:19:55,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:19:55,617 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 524 [2024-11-20 00:19:55,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:19:55,618 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 545 [2024-11-20 00:19:55,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:19:55,619 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 557 [2024-11-20 00:19:55,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:19:55,621 INFO L134 CoverageAnalysis]: Checked inductivity of 599 backedges. 178 proven. 1 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-20 00:19:55,621 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 00:19:55,622 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1660482257] [2024-11-20 00:19:55,622 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1660482257] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 00:19:55,622 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [644063094] [2024-11-20 00:19:55,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:19:55,622 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 00:19:55,623 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 00:19:55,625 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 00:19:55,626 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-20 00:19:56,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:19:56,733 INFO L255 TraceCheckSpWp]: Trace formula consists of 3331 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-20 00:19:56,745 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 00:19:57,576 INFO L134 CoverageAnalysis]: Checked inductivity of 599 backedges. 278 proven. 0 refuted. 0 times theorem prover too weak. 321 trivial. 0 not checked. [2024-11-20 00:19:57,576 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-20 00:19:57,577 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [644063094] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 00:19:57,577 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-20 00:19:57,577 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2024-11-20 00:19:57,577 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [931516987] [2024-11-20 00:19:57,577 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 00:19:57,578 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 00:19:57,578 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 00:19:57,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 00:19:57,579 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-20 00:19:57,579 INFO L87 Difference]: Start difference. First operand 1844 states and 2680 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) [2024-11-20 00:19:58,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 00:19:58,036 INFO L93 Difference]: Finished difference Result 2747 states and 4002 transitions. [2024-11-20 00:19:58,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 00:19:58,036 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 683 [2024-11-20 00:19:58,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 00:19:58,040 INFO L225 Difference]: With dead ends: 2747 [2024-11-20 00:19:58,041 INFO L226 Difference]: Without dead ends: 1843 [2024-11-20 00:19:58,042 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 707 GetRequests, 702 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-20 00:19:58,043 INFO L432 NwaCegarLoop]: 806 mSDtfsCounter, 827 mSDsluCounter, 808 mSDsCounter, 0 mSdLazyCounter, 601 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 827 SdHoareTripleChecker+Valid, 1614 SdHoareTripleChecker+Invalid, 602 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 601 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-20 00:19:58,043 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [827 Valid, 1614 Invalid, 602 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 601 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-20 00:19:58,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1843 states. [2024-11-20 00:19:58,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1843 to 1843. [2024-11-20 00:19:58,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1843 states, 1826 states have (on average 1.4496166484118291) internal successors, (2647), 1826 states have internal predecessors, (2647), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-20 00:19:58,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1843 states to 1843 states and 2677 transitions. [2024-11-20 00:19:58,075 INFO L78 Accepts]: Start accepts. Automaton has 1843 states and 2677 transitions. Word has length 683 [2024-11-20 00:19:58,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 00:19:58,076 INFO L471 AbstractCegarLoop]: Abstraction has 1843 states and 2677 transitions. [2024-11-20 00:19:58,077 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) [2024-11-20 00:19:58,077 INFO L276 IsEmpty]: Start isEmpty. Operand 1843 states and 2677 transitions. [2024-11-20 00:19:58,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 685 [2024-11-20 00:19:58,082 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 00:19:58,083 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 8, 8, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 00:19:58,100 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-11-20 00:19:58,283 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 00:19:58,284 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 00:19:58,284 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 00:19:58,285 INFO L85 PathProgramCache]: Analyzing trace with hash 1364670344, now seen corresponding path program 1 times [2024-11-20 00:19:58,285 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 00:19:58,285 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1939234975] [2024-11-20 00:19:58,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:19:58,285 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 00:19:58,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:19:59,099 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-11-20 00:19:59,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:19:59,101 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-11-20 00:19:59,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:19:59,102 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2024-11-20 00:19:59,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:19:59,103 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2024-11-20 00:19:59,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:19:59,104 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2024-11-20 00:19:59,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:19:59,105 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 489 [2024-11-20 00:19:59,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:19:59,106 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 501 [2024-11-20 00:19:59,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:19:59,107 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 525 [2024-11-20 00:19:59,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:19:59,108 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 546 [2024-11-20 00:19:59,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:19:59,109 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 558 [2024-11-20 00:19:59,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:19:59,111 INFO L134 CoverageAnalysis]: Checked inductivity of 599 backedges. 178 proven. 1 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-20 00:19:59,111 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 00:19:59,111 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1939234975] [2024-11-20 00:19:59,111 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1939234975] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 00:19:59,111 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1025175659] [2024-11-20 00:19:59,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:19:59,112 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 00:19:59,112 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 00:19:59,114 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 00:19:59,116 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-20 00:20:00,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:20:00,171 INFO L255 TraceCheckSpWp]: Trace formula consists of 3334 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-20 00:20:00,180 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 00:20:00,915 INFO L134 CoverageAnalysis]: Checked inductivity of 599 backedges. 278 proven. 0 refuted. 0 times theorem prover too weak. 321 trivial. 0 not checked. [2024-11-20 00:20:00,916 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-20 00:20:00,916 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1025175659] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 00:20:00,916 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-20 00:20:00,916 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2024-11-20 00:20:00,916 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1751075690] [2024-11-20 00:20:00,916 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 00:20:00,917 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 00:20:00,917 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 00:20:00,918 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 00:20:00,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-20 00:20:00,919 INFO L87 Difference]: Start difference. First operand 1843 states and 2677 transitions. Second operand has 4 states, 4 states have (on average 146.0) internal successors, (584), 4 states have internal predecessors, (584), 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) [2024-11-20 00:20:01,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 00:20:01,279 INFO L93 Difference]: Finished difference Result 2745 states and 3996 transitions. [2024-11-20 00:20:01,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 00:20:01,280 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 146.0) internal successors, (584), 4 states have internal predecessors, (584), 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 684 [2024-11-20 00:20:01,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 00:20:01,283 INFO L225 Difference]: With dead ends: 2745 [2024-11-20 00:20:01,284 INFO L226 Difference]: Without dead ends: 1842 [2024-11-20 00:20:01,285 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 708 GetRequests, 703 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-20 00:20:01,285 INFO L432 NwaCegarLoop]: 806 mSDtfsCounter, 819 mSDsluCounter, 808 mSDsCounter, 0 mSdLazyCounter, 595 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 819 SdHoareTripleChecker+Valid, 1614 SdHoareTripleChecker+Invalid, 596 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 595 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-20 00:20:01,286 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [819 Valid, 1614 Invalid, 596 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 595 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-20 00:20:01,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1842 states. [2024-11-20 00:20:01,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1842 to 1842. [2024-11-20 00:20:01,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1842 states, 1825 states have (on average 1.4487671232876713) internal successors, (2644), 1825 states have internal predecessors, (2644), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-20 00:20:01,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1842 states to 1842 states and 2674 transitions. [2024-11-20 00:20:01,319 INFO L78 Accepts]: Start accepts. Automaton has 1842 states and 2674 transitions. Word has length 684 [2024-11-20 00:20:01,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 00:20:01,319 INFO L471 AbstractCegarLoop]: Abstraction has 1842 states and 2674 transitions. [2024-11-20 00:20:01,320 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 146.0) internal successors, (584), 4 states have internal predecessors, (584), 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) [2024-11-20 00:20:01,320 INFO L276 IsEmpty]: Start isEmpty. Operand 1842 states and 2674 transitions. [2024-11-20 00:20:01,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 686 [2024-11-20 00:20:01,326 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 00:20:01,326 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 8, 8, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 00:20:01,345 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-11-20 00:20:01,527 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 00:20:01,528 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 00:20:01,528 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 00:20:01,528 INFO L85 PathProgramCache]: Analyzing trace with hash 2133380061, now seen corresponding path program 1 times [2024-11-20 00:20:01,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 00:20:01,529 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [529435546] [2024-11-20 00:20:01,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:20:01,529 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 00:20:01,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:20:02,474 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-11-20 00:20:02,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:20:02,476 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-11-20 00:20:02,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:20:02,477 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2024-11-20 00:20:02,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:20:02,478 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2024-11-20 00:20:02,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:20:02,479 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2024-11-20 00:20:02,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:20:02,480 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 490 [2024-11-20 00:20:02,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:20:02,481 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 502 [2024-11-20 00:20:02,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:20:02,482 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 526 [2024-11-20 00:20:02,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:20:02,483 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 547 [2024-11-20 00:20:02,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:20:02,485 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 559 [2024-11-20 00:20:02,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:20:02,487 INFO L134 CoverageAnalysis]: Checked inductivity of 599 backedges. 178 proven. 1 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-20 00:20:02,487 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 00:20:02,487 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [529435546] [2024-11-20 00:20:02,487 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [529435546] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 00:20:02,487 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1145527997] [2024-11-20 00:20:02,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:20:02,487 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 00:20:02,488 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 00:20:02,489 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 00:20:02,490 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-20 00:20:03,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:20:03,591 INFO L255 TraceCheckSpWp]: Trace formula consists of 3337 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-20 00:20:03,604 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 00:20:04,366 INFO L134 CoverageAnalysis]: Checked inductivity of 599 backedges. 278 proven. 0 refuted. 0 times theorem prover too weak. 321 trivial. 0 not checked. [2024-11-20 00:20:04,367 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-20 00:20:04,367 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1145527997] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 00:20:04,367 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-20 00:20:04,367 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2024-11-20 00:20:04,368 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [990828375] [2024-11-20 00:20:04,368 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 00:20:04,369 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 00:20:04,369 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 00:20:04,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 00:20:04,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-20 00:20:04,370 INFO L87 Difference]: Start difference. First operand 1842 states and 2674 transitions. Second operand has 4 states, 4 states have (on average 146.25) internal successors, (585), 4 states have internal predecessors, (585), 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) [2024-11-20 00:20:04,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 00:20:04,765 INFO L93 Difference]: Finished difference Result 2743 states and 3990 transitions. [2024-11-20 00:20:04,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 00:20:04,766 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 146.25) internal successors, (585), 4 states have internal predecessors, (585), 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 685 [2024-11-20 00:20:04,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 00:20:04,770 INFO L225 Difference]: With dead ends: 2743 [2024-11-20 00:20:04,770 INFO L226 Difference]: Without dead ends: 1841 [2024-11-20 00:20:04,771 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 709 GetRequests, 704 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-20 00:20:04,772 INFO L432 NwaCegarLoop]: 806 mSDtfsCounter, 805 mSDsluCounter, 808 mSDsCounter, 0 mSdLazyCounter, 589 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 805 SdHoareTripleChecker+Valid, 1614 SdHoareTripleChecker+Invalid, 590 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 589 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-20 00:20:04,772 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [805 Valid, 1614 Invalid, 590 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 589 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-20 00:20:04,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1841 states. [2024-11-20 00:20:04,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1841 to 1841. [2024-11-20 00:20:04,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1841 states, 1824 states have (on average 1.4479166666666667) internal successors, (2641), 1824 states have internal predecessors, (2641), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-20 00:20:04,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1841 states to 1841 states and 2671 transitions. [2024-11-20 00:20:04,804 INFO L78 Accepts]: Start accepts. Automaton has 1841 states and 2671 transitions. Word has length 685 [2024-11-20 00:20:04,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 00:20:04,805 INFO L471 AbstractCegarLoop]: Abstraction has 1841 states and 2671 transitions. [2024-11-20 00:20:04,805 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 146.25) internal successors, (585), 4 states have internal predecessors, (585), 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) [2024-11-20 00:20:04,806 INFO L276 IsEmpty]: Start isEmpty. Operand 1841 states and 2671 transitions. [2024-11-20 00:20:04,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 687 [2024-11-20 00:20:04,811 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 00:20:04,812 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 8, 8, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 00:20:04,831 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2024-11-20 00:20:05,012 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,SelfDestructingSolverStorable31 [2024-11-20 00:20:05,013 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 00:20:05,014 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 00:20:05,015 INFO L85 PathProgramCache]: Analyzing trace with hash 631135850, now seen corresponding path program 1 times [2024-11-20 00:20:05,015 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 00:20:05,015 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1899101201] [2024-11-20 00:20:05,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:20:05,015 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 00:20:05,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:20:05,939 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-11-20 00:20:05,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:20:05,941 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-11-20 00:20:05,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:20:05,942 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2024-11-20 00:20:05,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:20:05,944 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2024-11-20 00:20:05,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:20:05,945 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2024-11-20 00:20:05,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:20:05,948 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 491 [2024-11-20 00:20:05,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:20:05,949 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 503 [2024-11-20 00:20:05,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:20:05,950 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 527 [2024-11-20 00:20:05,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:20:05,950 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 548 [2024-11-20 00:20:05,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:20:05,951 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 560 [2024-11-20 00:20:05,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:20:05,954 INFO L134 CoverageAnalysis]: Checked inductivity of 599 backedges. 178 proven. 1 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-20 00:20:05,954 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 00:20:05,955 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1899101201] [2024-11-20 00:20:05,955 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1899101201] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 00:20:05,955 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1236392915] [2024-11-20 00:20:05,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:20:05,956 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 00:20:05,956 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 00:20:05,958 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 00:20:05,960 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process