./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../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 803cd42f 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 ../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-tmp.dk.eval-assert-order-craig-803cd42-m [2024-11-22 04:15:00,003 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-22 04:15:00,050 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-22 04:15:00,053 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-22 04:15:00,056 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-22 04:15:00,081 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-22 04:15:00,081 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-22 04:15:00,082 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-22 04:15:00,082 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-22 04:15:00,083 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-22 04:15:00,083 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-22 04:15:00,083 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-22 04:15:00,084 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-22 04:15:00,084 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-22 04:15:00,086 INFO L153 SettingsManager]: * Use SBE=true [2024-11-22 04:15:00,086 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-22 04:15:00,086 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-22 04:15:00,086 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-22 04:15:00,087 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-22 04:15:00,087 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-22 04:15:00,090 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-22 04:15:00,090 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-22 04:15:00,090 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-22 04:15:00,091 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-22 04:15:00,091 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-22 04:15:00,091 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-22 04:15:00,091 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-22 04:15:00,091 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-22 04:15:00,092 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-22 04:15:00,092 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 04:15:00,092 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-22 04:15:00,092 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-22 04:15:00,092 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-22 04:15:00,092 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-22 04:15:00,092 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-22 04:15:00,093 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-22 04:15:00,093 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-22 04:15:00,093 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-22 04:15:00,093 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-22 04:15:00,093 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 77ae88daffb8285870a38f38e30db5571fe2930110ef63da660dc306a4cb95e3 [2024-11-22 04:15:00,304 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-22 04:15:00,327 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-22 04:15:00,329 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-22 04:15:00,331 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-22 04:15:00,331 INFO L274 PluginConnector]: CDTParser initialized [2024-11-22 04:15:00,332 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardware-verification-array/btor2c-lazyMod.unsafe_arbitrated_fifos_n2d8w8.c [2024-11-22 04:15:01,700 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-22 04:15:01,928 INFO L384 CDTParser]: Found 1 translation units. [2024-11-22 04:15:01,929 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-array/btor2c-lazyMod.unsafe_arbitrated_fifos_n2d8w8.c [2024-11-22 04:15:01,944 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a16060f31/2b5770de0eb34fcbbc463dc86a667514/FLAGf44aee996 [2024-11-22 04:15:01,966 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a16060f31/2b5770de0eb34fcbbc463dc86a667514 [2024-11-22 04:15:01,968 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-22 04:15:01,970 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-22 04:15:01,972 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-22 04:15:01,973 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-22 04:15:01,977 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-22 04:15:01,977 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 04:15:01" (1/1) ... [2024-11-22 04:15:01,978 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f6fef0b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:15:01, skipping insertion in model container [2024-11-22 04:15:01,978 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 04:15:01" (1/1) ... [2024-11-22 04:15:02,043 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-22 04:15:02,311 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] [2024-11-22 04:15:02,518 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 04:15:02,527 INFO L200 MainTranslator]: Completed pre-run [2024-11-22 04:15:02,536 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] [2024-11-22 04:15:02,631 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 04:15:02,647 INFO L204 MainTranslator]: Completed translation [2024-11-22 04:15:02,647 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:15:02 WrapperNode [2024-11-22 04:15:02,648 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-22 04:15:02,649 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-22 04:15:02,649 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-22 04:15:02,649 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-22 04:15:02,655 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:15:02" (1/1) ... [2024-11-22 04:15:02,698 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:15:02" (1/1) ... [2024-11-22 04:15:02,883 INFO L138 Inliner]: procedures = 18, calls = 41, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 2371 [2024-11-22 04:15:02,884 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-22 04:15:02,884 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-22 04:15:02,885 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-22 04:15:02,885 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-22 04:15:02,894 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:15:02" (1/1) ... [2024-11-22 04:15:02,895 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:15:02" (1/1) ... [2024-11-22 04:15:02,933 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:15:02" (1/1) ... [2024-11-22 04:15:03,016 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]. [2024-11-22 04:15:03,016 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:15:02" (1/1) ... [2024-11-22 04:15:03,016 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:15:02" (1/1) ... [2024-11-22 04:15:03,074 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:15:02" (1/1) ... [2024-11-22 04:15:03,084 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:15:02" (1/1) ... [2024-11-22 04:15:03,102 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:15:02" (1/1) ... [2024-11-22 04:15:03,121 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:15:02" (1/1) ... [2024-11-22 04:15:03,293 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-22 04:15:03,293 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-22 04:15:03,293 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-22 04:15:03,294 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-22 04:15:03,294 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:15:02" (1/1) ... [2024-11-22 04:15:03,309 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 04:15:03,328 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 04:15:03,359 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) [2024-11-22 04:15:03,372 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 [2024-11-22 04:15:03,452 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-22 04:15:03,452 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-22 04:15:03,452 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-22 04:15:03,452 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-22 04:15:03,452 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-22 04:15:03,452 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-22 04:15:03,452 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-22 04:15:03,452 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-22 04:15:03,453 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-22 04:15:03,453 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-22 04:15:03,453 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-22 04:15:03,453 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-22 04:15:03,453 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-22 04:15:03,453 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-22 04:15:03,453 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-22 04:15:03,532 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-22 04:15:03,775 INFO L238 CfgBuilder]: Building ICFG [2024-11-22 04:15:03,777 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-22 04:15:05,637 INFO L? ?]: Removed 1277 outVars from TransFormulas that were not future-live. [2024-11-22 04:15:05,637 INFO L287 CfgBuilder]: Performing block encoding [2024-11-22 04:15:05,675 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-22 04:15:05,675 INFO L316 CfgBuilder]: Removed 7 assume(true) statements. [2024-11-22 04:15:05,675 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 04:15:05 BoogieIcfgContainer [2024-11-22 04:15:05,675 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-22 04:15:05,677 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-22 04:15:05,677 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-22 04:15:05,684 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-22 04:15:05,684 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 04:15:01" (1/3) ... [2024-11-22 04:15:05,684 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@181a5d89 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 04:15:05, skipping insertion in model container [2024-11-22 04:15:05,685 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:15:02" (2/3) ... [2024-11-22 04:15:05,685 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@181a5d89 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 04:15:05, skipping insertion in model container [2024-11-22 04:15:05,685 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 04:15:05" (3/3) ... [2024-11-22 04:15:05,686 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.unsafe_arbitrated_fifos_n2d8w8.c [2024-11-22 04:15:05,698 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-22 04:15:05,698 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-22 04:15:05,781 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 04:15:05,793 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;@37d34929, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 04:15:05,794 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-22 04:15:05,805 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) [2024-11-22 04:15:05,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2024-11-22 04:15:05,826 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:15:05,827 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] [2024-11-22 04:15:05,827 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:15:05,831 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:15:05,831 INFO L85 PathProgramCache]: Analyzing trace with hash 1553388401, now seen corresponding path program 1 times [2024-11-22 04:15:05,838 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:15:05,838 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [95438309] [2024-11-22 04:15:05,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:15:05,839 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:15:06,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:15:06,258 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-22 04:15:06,258 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:15:06,258 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [95438309] [2024-11-22 04:15:06,259 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [95438309] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:15:06,259 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:15:06,259 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 04:15:06,262 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [154937571] [2024-11-22 04:15:06,263 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:15:06,266 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-22 04:15:06,268 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:15:06,290 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-22 04:15:06,291 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-22 04:15:06,293 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) [2024-11-22 04:15:06,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:15:06,348 INFO L93 Difference]: Finished difference Result 1493 states and 2239 transitions. [2024-11-22 04:15:06,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-22 04:15:06,350 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 [2024-11-22 04:15:06,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:15:06,360 INFO L225 Difference]: With dead ends: 1493 [2024-11-22 04:15:06,361 INFO L226 Difference]: Without dead ends: 749 [2024-11-22 04:15:06,365 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-22 04:15:06,368 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 [2024-11-22 04:15:06,368 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] [2024-11-22 04:15:06,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 749 states. [2024-11-22 04:15:06,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 749 to 749. [2024-11-22 04:15:06,436 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) [2024-11-22 04:15:06,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 749 states to 749 states and 1113 transitions. [2024-11-22 04:15:06,441 INFO L78 Accepts]: Start accepts. Automaton has 749 states and 1113 transitions. Word has length 237 [2024-11-22 04:15:06,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:15:06,441 INFO L471 AbstractCegarLoop]: Abstraction has 749 states and 1113 transitions. [2024-11-22 04:15:06,442 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) [2024-11-22 04:15:06,442 INFO L276 IsEmpty]: Start isEmpty. Operand 749 states and 1113 transitions. [2024-11-22 04:15:06,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2024-11-22 04:15:06,452 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:15:06,453 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] [2024-11-22 04:15:06,453 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-22 04:15:06,453 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:15:06,455 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:15:06,455 INFO L85 PathProgramCache]: Analyzing trace with hash -884107756, now seen corresponding path program 1 times [2024-11-22 04:15:06,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:15:06,459 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1095992027] [2024-11-22 04:15:06,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:15:06,460 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:15:06,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:15:07,056 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-22 04:15:07,057 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:15:07,057 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1095992027] [2024-11-22 04:15:07,057 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1095992027] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:15:07,058 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:15:07,058 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 04:15:07,058 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [851839940] [2024-11-22 04:15:07,058 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:15:07,060 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 04:15:07,061 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:15:07,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 04:15:07,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 04:15:07,062 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) [2024-11-22 04:15:07,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:15:07,111 INFO L93 Difference]: Finished difference Result 1496 states and 2224 transitions. [2024-11-22 04:15:07,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 04:15:07,112 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 [2024-11-22 04:15:07,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:15:07,115 INFO L225 Difference]: With dead ends: 1496 [2024-11-22 04:15:07,115 INFO L226 Difference]: Without dead ends: 755 [2024-11-22 04:15:07,118 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 04:15:07,120 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 [2024-11-22 04:15:07,120 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] [2024-11-22 04:15:07,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 755 states. [2024-11-22 04:15:07,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 755 to 750. [2024-11-22 04:15:07,139 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) [2024-11-22 04:15:07,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 750 states to 750 states and 1114 transitions. [2024-11-22 04:15:07,141 INFO L78 Accepts]: Start accepts. Automaton has 750 states and 1114 transitions. Word has length 237 [2024-11-22 04:15:07,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:15:07,143 INFO L471 AbstractCegarLoop]: Abstraction has 750 states and 1114 transitions. [2024-11-22 04:15:07,143 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) [2024-11-22 04:15:07,143 INFO L276 IsEmpty]: Start isEmpty. Operand 750 states and 1114 transitions. [2024-11-22 04:15:07,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2024-11-22 04:15:07,145 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:15:07,146 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] [2024-11-22 04:15:07,146 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-22 04:15:07,146 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:15:07,146 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:15:07,147 INFO L85 PathProgramCache]: Analyzing trace with hash 1556809999, now seen corresponding path program 1 times [2024-11-22 04:15:07,147 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:15:07,147 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2064350825] [2024-11-22 04:15:07,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:15:07,147 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:15:07,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:15:07,761 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-22 04:15:07,764 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:15:07,765 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2064350825] [2024-11-22 04:15:07,765 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2064350825] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 04:15:07,765 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1366007818] [2024-11-22 04:15:07,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:15:07,765 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 04:15:07,766 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 04:15:07,772 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) [2024-11-22 04:15:07,780 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-22 04:15:08,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:15:08,204 INFO L255 TraceCheckSpWp]: Trace formula consists of 1081 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-22 04:15:08,217 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 04:15:08,269 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-22 04:15:08,272 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 04:15:08,327 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2024-11-22 04:15:08,329 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1366007818] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-22 04:15:08,329 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-22 04:15:08,329 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4, 4] total 6 [2024-11-22 04:15:08,330 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1540832790] [2024-11-22 04:15:08,330 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:15:08,331 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 04:15:08,332 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:15:08,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 04:15:08,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-22 04:15:08,333 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) [2024-11-22 04:15:08,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:15:08,359 INFO L93 Difference]: Finished difference Result 1469 states and 2184 transitions. [2024-11-22 04:15:08,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 04:15:08,360 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 [2024-11-22 04:15:08,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:15:08,363 INFO L225 Difference]: With dead ends: 1469 [2024-11-22 04:15:08,363 INFO L226 Difference]: Without dead ends: 751 [2024-11-22 04:15:08,364 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 484 GetRequests, 480 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-22 04:15:08,366 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 [2024-11-22 04:15:08,367 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] [2024-11-22 04:15:08,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 751 states. [2024-11-22 04:15:08,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 751 to 751. [2024-11-22 04:15:08,380 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) [2024-11-22 04:15:08,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 751 states to 751 states and 1115 transitions. [2024-11-22 04:15:08,384 INFO L78 Accepts]: Start accepts. Automaton has 751 states and 1115 transitions. Word has length 241 [2024-11-22 04:15:08,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:15:08,384 INFO L471 AbstractCegarLoop]: Abstraction has 751 states and 1115 transitions. [2024-11-22 04:15:08,385 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) [2024-11-22 04:15:08,385 INFO L276 IsEmpty]: Start isEmpty. Operand 751 states and 1115 transitions. [2024-11-22 04:15:08,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 246 [2024-11-22 04:15:08,388 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:15:08,388 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] [2024-11-22 04:15:08,397 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-22 04:15:08,592 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 [2024-11-22 04:15:08,593 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:15:08,594 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:15:08,594 INFO L85 PathProgramCache]: Analyzing trace with hash 973399818, now seen corresponding path program 1 times [2024-11-22 04:15:08,594 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:15:08,595 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [442412934] [2024-11-22 04:15:08,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:15:08,595 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:15:08,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:15:08,924 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2024-11-22 04:15:08,924 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:15:08,925 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [442412934] [2024-11-22 04:15:08,925 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [442412934] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 04:15:08,925 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1547699483] [2024-11-22 04:15:08,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:15:08,925 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 04:15:08,925 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 04:15:08,930 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) [2024-11-22 04:15:08,935 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-22 04:15:09,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:15:09,393 INFO L255 TraceCheckSpWp]: Trace formula consists of 1091 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-22 04:15:09,402 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 04:15:09,775 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2024-11-22 04:15:09,775 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 04:15:09,776 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1547699483] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:15:09,776 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 04:15:09,776 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2024-11-22 04:15:09,776 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1893785722] [2024-11-22 04:15:09,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:15:09,777 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 04:15:09,777 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:15:09,778 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 04:15:09,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-22 04:15:09,778 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) [2024-11-22 04:15:09,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:15:09,940 INFO L93 Difference]: Finished difference Result 1404 states and 2086 transitions. [2024-11-22 04:15:09,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 04:15:09,941 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 [2024-11-22 04:15:09,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:15:09,944 INFO L225 Difference]: With dead ends: 1404 [2024-11-22 04:15:09,944 INFO L226 Difference]: Without dead ends: 751 [2024-11-22 04:15:09,945 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 248 GetRequests, 244 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-22 04:15:09,945 INFO L432 NwaCegarLoop]: 1012 mSDtfsCounter, 980 mSDsluCounter, 1005 mSDsCounter, 0 mSdLazyCounter, 202 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 980 SdHoareTripleChecker+Valid, 2017 SdHoareTripleChecker+Invalid, 203 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 202 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 04:15:09,946 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [980 Valid, 2017 Invalid, 203 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 202 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 04:15:09,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 751 states. [2024-11-22 04:15:09,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 751 to 751. [2024-11-22 04:15:09,956 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) [2024-11-22 04:15:09,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 751 states to 751 states and 1113 transitions. [2024-11-22 04:15:09,959 INFO L78 Accepts]: Start accepts. Automaton has 751 states and 1113 transitions. Word has length 245 [2024-11-22 04:15:09,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:15:09,960 INFO L471 AbstractCegarLoop]: Abstraction has 751 states and 1113 transitions. [2024-11-22 04:15:09,961 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) [2024-11-22 04:15:09,961 INFO L276 IsEmpty]: Start isEmpty. Operand 751 states and 1113 transitions. [2024-11-22 04:15:09,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 248 [2024-11-22 04:15:09,963 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:15:09,963 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] [2024-11-22 04:15:09,973 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-22 04:15:10,163 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 [2024-11-22 04:15:10,164 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:15:10,165 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:15:10,165 INFO L85 PathProgramCache]: Analyzing trace with hash -1130408025, now seen corresponding path program 1 times [2024-11-22 04:15:10,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:15:10,165 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1352643547] [2024-11-22 04:15:10,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:15:10,168 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:15:10,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:15:10,526 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2024-11-22 04:15:10,526 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:15:10,527 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1352643547] [2024-11-22 04:15:10,527 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1352643547] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 04:15:10,527 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1837090515] [2024-11-22 04:15:10,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:15:10,527 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 04:15:10,527 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 04:15:10,529 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) [2024-11-22 04:15:10,531 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-22 04:15:10,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:15:10,886 INFO L255 TraceCheckSpWp]: Trace formula consists of 1095 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-22 04:15:10,891 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 04:15:11,167 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2024-11-22 04:15:11,168 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 04:15:11,168 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1837090515] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:15:11,168 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 04:15:11,168 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [4] total 8 [2024-11-22 04:15:11,168 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2125851958] [2024-11-22 04:15:11,168 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:15:11,169 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 04:15:11,169 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:15:11,170 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 04:15:11,170 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-22 04:15:11,170 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) [2024-11-22 04:15:11,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:15:11,389 INFO L93 Difference]: Finished difference Result 1404 states and 2082 transitions. [2024-11-22 04:15:11,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 04:15:11,390 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 [2024-11-22 04:15:11,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:15:11,393 INFO L225 Difference]: With dead ends: 1404 [2024-11-22 04:15:11,394 INFO L226 Difference]: Without dead ends: 751 [2024-11-22 04:15:11,395 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 252 GetRequests, 244 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2024-11-22 04:15:11,395 INFO L432 NwaCegarLoop]: 1012 mSDtfsCounter, 2034 mSDsluCounter, 2019 mSDsCounter, 0 mSdLazyCounter, 302 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2039 SdHoareTripleChecker+Valid, 3031 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 [2024-11-22 04:15:11,396 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2039 Valid, 3031 Invalid, 303 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 302 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-22 04:15:11,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 751 states. [2024-11-22 04:15:11,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 751 to 751. [2024-11-22 04:15:11,409 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) [2024-11-22 04:15:11,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 751 states to 751 states and 1112 transitions. [2024-11-22 04:15:11,412 INFO L78 Accepts]: Start accepts. Automaton has 751 states and 1112 transitions. Word has length 247 [2024-11-22 04:15:11,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:15:11,413 INFO L471 AbstractCegarLoop]: Abstraction has 751 states and 1112 transitions. [2024-11-22 04:15:11,413 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) [2024-11-22 04:15:11,413 INFO L276 IsEmpty]: Start isEmpty. Operand 751 states and 1112 transitions. [2024-11-22 04:15:11,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2024-11-22 04:15:11,415 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:15:11,416 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] [2024-11-22 04:15:11,429 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-22 04:15:11,619 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 [2024-11-22 04:15:11,620 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:15:11,621 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:15:11,621 INFO L85 PathProgramCache]: Analyzing trace with hash -554608893, now seen corresponding path program 1 times [2024-11-22 04:15:11,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:15:11,621 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [679331333] [2024-11-22 04:15:11,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:15:11,622 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:15:11,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:15:11,908 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2024-11-22 04:15:11,908 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:15:11,908 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [679331333] [2024-11-22 04:15:11,909 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [679331333] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 04:15:11,909 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1663126326] [2024-11-22 04:15:11,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:15:11,909 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 04:15:11,909 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 04:15:11,911 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) [2024-11-22 04:15:11,920 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-22 04:15:12,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:15:12,308 INFO L255 TraceCheckSpWp]: Trace formula consists of 1098 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-22 04:15:12,313 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 04:15:12,517 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2024-11-22 04:15:12,518 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 04:15:12,518 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1663126326] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:15:12,518 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 04:15:12,518 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [4] total 8 [2024-11-22 04:15:12,518 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1315486695] [2024-11-22 04:15:12,519 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:15:12,519 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 04:15:12,519 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:15:12,520 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 04:15:12,520 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-22 04:15:12,520 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) [2024-11-22 04:15:12,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:15:12,817 INFO L93 Difference]: Finished difference Result 1404 states and 2080 transitions. [2024-11-22 04:15:12,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 04:15:12,817 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 [2024-11-22 04:15:12,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:15:12,820 INFO L225 Difference]: With dead ends: 1404 [2024-11-22 04:15:12,820 INFO L226 Difference]: Without dead ends: 751 [2024-11-22 04:15:12,821 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 253 GetRequests, 245 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2024-11-22 04:15:12,822 INFO L432 NwaCegarLoop]: 1012 mSDtfsCounter, 1076 mSDsluCounter, 2028 mSDsCounter, 0 mSdLazyCounter, 299 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1081 SdHoareTripleChecker+Valid, 3040 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 [2024-11-22 04:15:12,822 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1081 Valid, 3040 Invalid, 300 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 299 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-22 04:15:12,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 751 states. [2024-11-22 04:15:12,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 751 to 751. [2024-11-22 04:15:12,834 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) [2024-11-22 04:15:12,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 751 states to 751 states and 1111 transitions. [2024-11-22 04:15:12,837 INFO L78 Accepts]: Start accepts. Automaton has 751 states and 1111 transitions. Word has length 248 [2024-11-22 04:15:12,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:15:12,838 INFO L471 AbstractCegarLoop]: Abstraction has 751 states and 1111 transitions. [2024-11-22 04:15:12,838 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) [2024-11-22 04:15:12,838 INFO L276 IsEmpty]: Start isEmpty. Operand 751 states and 1111 transitions. [2024-11-22 04:15:12,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 250 [2024-11-22 04:15:12,840 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:15:12,841 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] [2024-11-22 04:15:12,856 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-22 04:15:13,041 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 [2024-11-22 04:15:13,042 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:15:13,042 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:15:13,043 INFO L85 PathProgramCache]: Analyzing trace with hash -1598458684, now seen corresponding path program 1 times [2024-11-22 04:15:13,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:15:13,043 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [309762568] [2024-11-22 04:15:13,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:15:13,043 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:15:13,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:15:13,299 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2024-11-22 04:15:13,299 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:15:13,299 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [309762568] [2024-11-22 04:15:13,299 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [309762568] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 04:15:13,299 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1678946600] [2024-11-22 04:15:13,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:15:13,300 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 04:15:13,300 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 04:15:13,305 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) [2024-11-22 04:15:13,312 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-22 04:15:13,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:15:13,768 INFO L255 TraceCheckSpWp]: Trace formula consists of 1099 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-22 04:15:13,773 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 04:15:13,796 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2024-11-22 04:15:13,796 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 04:15:14,520 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2024-11-22 04:15:14,520 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1678946600] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 04:15:14,520 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 04:15:14,521 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 8] total 12 [2024-11-22 04:15:14,521 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1699282298] [2024-11-22 04:15:14,521 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 04:15:14,522 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-22 04:15:14,522 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:15:14,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-22 04:15:14,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2024-11-22 04:15:14,523 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) [2024-11-22 04:15:16,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:15:16,005 INFO L93 Difference]: Finished difference Result 2113 states and 3130 transitions. [2024-11-22 04:15:16,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 04:15:16,006 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 [2024-11-22 04:15:16,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:15:16,011 INFO L225 Difference]: With dead ends: 2113 [2024-11-22 04:15:16,011 INFO L226 Difference]: Without dead ends: 1371 [2024-11-22 04:15:16,013 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 501 GetRequests, 490 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2024-11-22 04:15:16,014 INFO L432 NwaCegarLoop]: 1332 mSDtfsCounter, 2059 mSDsluCounter, 6099 mSDsCounter, 0 mSdLazyCounter, 2517 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2064 SdHoareTripleChecker+Valid, 7431 SdHoareTripleChecker+Invalid, 2518 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2517 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-22 04:15:16,014 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2064 Valid, 7431 Invalid, 2518 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2517 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-22 04:15:16,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1371 states. [2024-11-22 04:15:16,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1371 to 970. [2024-11-22 04:15:16,038 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) [2024-11-22 04:15:16,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 970 states to 970 states and 1434 transitions. [2024-11-22 04:15:16,042 INFO L78 Accepts]: Start accepts. Automaton has 970 states and 1434 transitions. Word has length 249 [2024-11-22 04:15:16,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:15:16,042 INFO L471 AbstractCegarLoop]: Abstraction has 970 states and 1434 transitions. [2024-11-22 04:15:16,042 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) [2024-11-22 04:15:16,043 INFO L276 IsEmpty]: Start isEmpty. Operand 970 states and 1434 transitions. [2024-11-22 04:15:16,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2024-11-22 04:15:16,045 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:15:16,045 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] [2024-11-22 04:15:16,055 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-22 04:15:16,246 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 [2024-11-22 04:15:16,248 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:15:16,248 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:15:16,248 INFO L85 PathProgramCache]: Analyzing trace with hash 391476179, now seen corresponding path program 1 times [2024-11-22 04:15:16,248 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:15:16,248 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1449722454] [2024-11-22 04:15:16,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:15:16,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:15:16,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:15:16,588 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2024-11-22 04:15:16,588 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:15:16,589 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1449722454] [2024-11-22 04:15:16,589 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1449722454] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 04:15:16,589 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [452046425] [2024-11-22 04:15:16,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:15:16,589 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 04:15:16,589 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 04:15:16,591 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) [2024-11-22 04:15:16,597 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-22 04:15:16,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:15:16,984 INFO L255 TraceCheckSpWp]: Trace formula consists of 1112 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-22 04:15:16,989 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 04:15:17,011 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-22 04:15:17,014 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 04:15:17,067 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2024-11-22 04:15:17,067 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [452046425] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 04:15:17,067 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 04:15:17,069 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6, 4] total 9 [2024-11-22 04:15:17,069 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1342268750] [2024-11-22 04:15:17,069 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 04:15:17,069 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-22 04:15:17,070 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:15:17,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-22 04:15:17,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-22 04:15:17,070 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) [2024-11-22 04:15:17,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:15:17,145 INFO L93 Difference]: Finished difference Result 1972 states and 2918 transitions. [2024-11-22 04:15:17,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 04:15:17,146 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 [2024-11-22 04:15:17,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:15:17,149 INFO L225 Difference]: With dead ends: 1972 [2024-11-22 04:15:17,149 INFO L226 Difference]: Without dead ends: 1017 [2024-11-22 04:15:17,152 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 512 GetRequests, 504 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2024-11-22 04:15:17,153 INFO L432 NwaCegarLoop]: 1113 mSDtfsCounter, 63 mSDsluCounter, 5528 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 6641 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 04:15:17,153 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 6641 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 04:15:17,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1017 states. [2024-11-22 04:15:17,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1017 to 1012. [2024-11-22 04:15:17,172 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) [2024-11-22 04:15:17,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1012 states to 1012 states and 1490 transitions. [2024-11-22 04:15:17,175 INFO L78 Accepts]: Start accepts. Automaton has 1012 states and 1490 transitions. Word has length 254 [2024-11-22 04:15:17,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:15:17,175 INFO L471 AbstractCegarLoop]: Abstraction has 1012 states and 1490 transitions. [2024-11-22 04:15:17,176 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) [2024-11-22 04:15:17,176 INFO L276 IsEmpty]: Start isEmpty. Operand 1012 states and 1490 transitions. [2024-11-22 04:15:17,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 271 [2024-11-22 04:15:17,178 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:15:17,178 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] [2024-11-22 04:15:17,187 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-22 04:15:17,379 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 [2024-11-22 04:15:17,380 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:15:17,380 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:15:17,380 INFO L85 PathProgramCache]: Analyzing trace with hash -1044881239, now seen corresponding path program 2 times [2024-11-22 04:15:17,380 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:15:17,381 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1627169829] [2024-11-22 04:15:17,381 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-22 04:15:17,381 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:15:17,478 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-22 04:15:17,482 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 04:15:17,820 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2024-11-22 04:15:17,820 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:15:17,821 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1627169829] [2024-11-22 04:15:17,821 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1627169829] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:15:17,821 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:15:17,821 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 04:15:17,821 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [825658140] [2024-11-22 04:15:17,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:15:17,822 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 04:15:17,822 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:15:17,823 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 04:15:17,823 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 04:15:17,823 INFO L87 Difference]: Start difference. First operand 1012 states and 1490 transitions. Second operand has 4 states, 4 states have (on average 57.0) internal successors, (228), 4 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) [2024-11-22 04:15:17,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:15:17,847 INFO L93 Difference]: Finished difference Result 1016 states and 1494 transitions. [2024-11-22 04:15:17,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 04:15:17,848 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 57.0) internal successors, (228), 4 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 [2024-11-22 04:15:17,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:15:17,851 INFO L225 Difference]: With dead ends: 1016 [2024-11-22 04:15:17,851 INFO L226 Difference]: Without dead ends: 1014 [2024-11-22 04:15:17,851 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 04:15:17,853 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 [2024-11-22 04:15:17,853 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] [2024-11-22 04:15:17,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1014 states. [2024-11-22 04:15:17,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1014 to 1014. [2024-11-22 04:15:17,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1014 states, 1002 states have (on average 1.469061876247505) internal successors, (1472), 1002 states have internal predecessors, (1472), 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) [2024-11-22 04:15:17,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1014 states to 1014 states and 1492 transitions. [2024-11-22 04:15:17,871 INFO L78 Accepts]: Start accepts. Automaton has 1014 states and 1492 transitions. Word has length 270 [2024-11-22 04:15:17,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:15:17,871 INFO L471 AbstractCegarLoop]: Abstraction has 1014 states and 1492 transitions. [2024-11-22 04:15:17,871 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 57.0) internal successors, (228), 4 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) [2024-11-22 04:15:17,871 INFO L276 IsEmpty]: Start isEmpty. Operand 1014 states and 1492 transitions. [2024-11-22 04:15:17,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 272 [2024-11-22 04:15:17,874 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:15:17,875 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, 1] [2024-11-22 04:15:17,875 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-22 04:15:17,875 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:15:17,875 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:15:17,875 INFO L85 PathProgramCache]: Analyzing trace with hash 1970116471, now seen corresponding path program 1 times [2024-11-22 04:15:17,875 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:15:17,876 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [51251074] [2024-11-22 04:15:17,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:15:17,876 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:15:17,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:15:18,183 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2024-11-22 04:15:18,184 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:15:18,184 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [51251074] [2024-11-22 04:15:18,184 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [51251074] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 04:15:18,184 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [581221415] [2024-11-22 04:15:18,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:15:18,185 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 04:15:18,185 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 04:15:18,187 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) [2024-11-22 04:15:18,188 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-22 04:15:18,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:15:18,587 INFO L255 TraceCheckSpWp]: Trace formula consists of 1155 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-22 04:15:18,592 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 04:15:18,624 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2024-11-22 04:15:18,625 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 04:15:18,750 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 13 proven. 30 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-22 04:15:18,750 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [581221415] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 04:15:18,751 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 04:15:18,751 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 10] total 15 [2024-11-22 04:15:18,753 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [552804007] [2024-11-22 04:15:18,753 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 04:15:18,754 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-22 04:15:18,754 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:15:18,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-22 04:15:18,754 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=159, Unknown=0, NotChecked=0, Total=210 [2024-11-22 04:15:18,755 INFO L87 Difference]: Start difference. First operand 1014 states and 1492 transitions. Second operand has 15 states, 15 states have (on average 18.0) internal successors, (270), 15 states have internal predecessors, (270), 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) [2024-11-22 04:15:18,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:15:18,903 INFO L93 Difference]: Finished difference Result 2037 states and 3001 transitions. [2024-11-22 04:15:18,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-22 04:15:18,903 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 18.0) internal successors, (270), 15 states have internal predecessors, (270), 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 271 [2024-11-22 04:15:18,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:15:18,907 INFO L225 Difference]: With dead ends: 2037 [2024-11-22 04:15:18,907 INFO L226 Difference]: Without dead ends: 1044 [2024-11-22 04:15:18,908 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 549 GetRequests, 533 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=84, Invalid=222, Unknown=0, NotChecked=0, Total=306 [2024-11-22 04:15:18,909 INFO L432 NwaCegarLoop]: 1121 mSDtfsCounter, 107 mSDsluCounter, 8928 mSDsCounter, 0 mSdLazyCounter, 148 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 10049 SdHoareTripleChecker+Invalid, 150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 04:15:18,910 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [107 Valid, 10049 Invalid, 150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 148 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 04:15:18,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1044 states. [2024-11-22 04:15:18,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1044 to 1044. [2024-11-22 04:15:18,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1044 states, 1032 states have (on average 1.4651162790697674) internal successors, (1512), 1032 states have internal predecessors, (1512), 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) [2024-11-22 04:15:18,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1044 states to 1044 states and 1532 transitions. [2024-11-22 04:15:18,928 INFO L78 Accepts]: Start accepts. Automaton has 1044 states and 1532 transitions. Word has length 271 [2024-11-22 04:15:18,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:15:18,928 INFO L471 AbstractCegarLoop]: Abstraction has 1044 states and 1532 transitions. [2024-11-22 04:15:18,929 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 18.0) internal successors, (270), 15 states have internal predecessors, (270), 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) [2024-11-22 04:15:18,929 INFO L276 IsEmpty]: Start isEmpty. Operand 1044 states and 1532 transitions. [2024-11-22 04:15:18,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 292 [2024-11-22 04:15:18,931 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:15:18,931 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] [2024-11-22 04:15:18,941 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-22 04:15:19,135 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 04:15:19,136 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:15:19,138 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:15:19,138 INFO L85 PathProgramCache]: Analyzing trace with hash 947914142, now seen corresponding path program 2 times [2024-11-22 04:15:19,138 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:15:19,138 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [299166425] [2024-11-22 04:15:19,138 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-22 04:15:19,138 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:15:19,238 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-22 04:15:19,239 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 04:15:19,379 INFO L134 CoverageAnalysis]: Checked inductivity of 188 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 188 trivial. 0 not checked. [2024-11-22 04:15:19,379 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:15:19,379 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [299166425] [2024-11-22 04:15:19,379 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [299166425] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:15:19,379 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:15:19,379 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 04:15:19,380 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1912341465] [2024-11-22 04:15:19,380 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:15:19,380 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 04:15:19,380 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:15:19,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 04:15:19,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 04:15:19,381 INFO L87 Difference]: Start difference. First operand 1044 states and 1532 transitions. Second operand has 4 states, 4 states have (on average 57.25) internal successors, (229), 4 states have internal predecessors, (229), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-22 04:15:19,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:15:19,427 INFO L93 Difference]: Finished difference Result 1701 states and 2504 transitions. [2024-11-22 04:15:19,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 04:15:19,428 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 57.25) internal successors, (229), 4 states have internal predecessors, (229), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 291 [2024-11-22 04:15:19,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:15:19,431 INFO L225 Difference]: With dead ends: 1701 [2024-11-22 04:15:19,431 INFO L226 Difference]: Without dead ends: 1046 [2024-11-22 04:15:19,436 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 04:15:19,436 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 [2024-11-22 04:15:19,436 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] [2024-11-22 04:15:19,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1046 states. [2024-11-22 04:15:19,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1046 to 1046. [2024-11-22 04:15:19,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1046 states, 1034 states have (on average 1.4642166344294003) internal successors, (1514), 1034 states have internal predecessors, (1514), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-22 04:15:19,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1046 states to 1046 states and 1534 transitions. [2024-11-22 04:15:19,474 INFO L78 Accepts]: Start accepts. Automaton has 1046 states and 1534 transitions. Word has length 291 [2024-11-22 04:15:19,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:15:19,477 INFO L471 AbstractCegarLoop]: Abstraction has 1046 states and 1534 transitions. [2024-11-22 04:15:19,477 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 57.25) internal successors, (229), 4 states have internal predecessors, (229), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-22 04:15:19,477 INFO L276 IsEmpty]: Start isEmpty. Operand 1046 states and 1534 transitions. [2024-11-22 04:15:19,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 293 [2024-11-22 04:15:19,480 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:15:19,480 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] [2024-11-22 04:15:19,480 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-22 04:15:19,480 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:15:19,484 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:15:19,484 INFO L85 PathProgramCache]: Analyzing trace with hash -1777397253, now seen corresponding path program 1 times [2024-11-22 04:15:19,485 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:15:19,485 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1240187715] [2024-11-22 04:15:19,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:15:19,485 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:15:19,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:15:19,853 INFO L134 CoverageAnalysis]: Checked inductivity of 188 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 160 trivial. 0 not checked. [2024-11-22 04:15:19,854 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:15:19,854 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1240187715] [2024-11-22 04:15:19,854 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1240187715] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 04:15:19,854 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [422068465] [2024-11-22 04:15:19,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:15:19,854 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 04:15:19,854 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 04:15:19,856 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) [2024-11-22 04:15:19,859 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-22 04:15:20,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:15:20,286 INFO L255 TraceCheckSpWp]: Trace formula consists of 1208 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-22 04:15:20,290 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 04:15:20,370 INFO L134 CoverageAnalysis]: Checked inductivity of 188 backedges. 0 proven. 124 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2024-11-22 04:15:20,370 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 04:15:20,472 INFO L134 CoverageAnalysis]: Checked inductivity of 188 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 160 trivial. 0 not checked. [2024-11-22 04:15:20,472 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [422068465] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 04:15:20,472 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 04:15:20,473 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 12, 7] total 18 [2024-11-22 04:15:20,473 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1424225842] [2024-11-22 04:15:20,473 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 04:15:20,474 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-22 04:15:20,474 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:15:20,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-22 04:15:20,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=240, Unknown=0, NotChecked=0, Total=306 [2024-11-22 04:15:20,475 INFO L87 Difference]: Start difference. First operand 1046 states and 1534 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) [2024-11-22 04:15:20,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:15:20,742 INFO L93 Difference]: Finished difference Result 2021 states and 2978 transitions. [2024-11-22 04:15:20,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-22 04:15:20,742 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 [2024-11-22 04:15:20,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:15:20,746 INFO L225 Difference]: With dead ends: 2021 [2024-11-22 04:15:20,746 INFO L226 Difference]: Without dead ends: 1094 [2024-11-22 04:15:20,747 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 591 GetRequests, 573 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=88, Invalid=292, Unknown=0, NotChecked=0, Total=380 [2024-11-22 04:15:20,748 INFO L432 NwaCegarLoop]: 1143 mSDtfsCounter, 114 mSDsluCounter, 12469 mSDsCounter, 0 mSdLazyCounter, 356 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 13612 SdHoareTripleChecker+Invalid, 357 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 356 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 04:15:20,748 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [114 Valid, 13612 Invalid, 357 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 356 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 04:15:20,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1094 states. [2024-11-22 04:15:20,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1094 to 1094. [2024-11-22 04:15:20,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1094 states, 1082 states have (on average 1.4584103512014788) internal successors, (1578), 1082 states have internal predecessors, (1578), 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) [2024-11-22 04:15:20,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1094 states to 1094 states and 1598 transitions. [2024-11-22 04:15:20,768 INFO L78 Accepts]: Start accepts. Automaton has 1094 states and 1598 transitions. Word has length 292 [2024-11-22 04:15:20,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:15:20,769 INFO L471 AbstractCegarLoop]: Abstraction has 1094 states and 1598 transitions. [2024-11-22 04:15:20,769 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) [2024-11-22 04:15:20,769 INFO L276 IsEmpty]: Start isEmpty. Operand 1094 states and 1598 transitions. [2024-11-22 04:15:20,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 309 [2024-11-22 04:15:20,772 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:15:20,772 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] [2024-11-22 04:15:20,781 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-11-22 04:15:20,972 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,SelfDestructingSolverStorable11 [2024-11-22 04:15:20,973 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:15:20,973 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:15:20,973 INFO L85 PathProgramCache]: Analyzing trace with hash -977299993, now seen corresponding path program 2 times [2024-11-22 04:15:20,974 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:15:20,974 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [757568403] [2024-11-22 04:15:20,974 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-22 04:15:20,974 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:15:21,159 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-22 04:15:21,160 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 04:15:21,621 INFO L134 CoverageAnalysis]: Checked inductivity of 280 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 280 trivial. 0 not checked. [2024-11-22 04:15:21,622 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:15:21,622 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [757568403] [2024-11-22 04:15:21,622 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [757568403] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:15:21,622 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:15:21,622 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 04:15:21,622 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [347935109] [2024-11-22 04:15:21,622 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:15:21,622 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 04:15:21,622 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:15:21,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 04:15:21,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 04:15:21,623 INFO L87 Difference]: Start difference. First operand 1094 states and 1598 transitions. Second operand has 5 states, 5 states have (on average 46.0) internal successors, (230), 5 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) [2024-11-22 04:15:21,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:15:21,688 INFO L93 Difference]: Finished difference Result 1907 states and 2801 transitions. [2024-11-22 04:15:21,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 04:15:21,689 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 46.0) internal successors, (230), 5 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 [2024-11-22 04:15:21,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:15:21,698 INFO L225 Difference]: With dead ends: 1907 [2024-11-22 04:15:21,698 INFO L226 Difference]: Without dead ends: 1250 [2024-11-22 04:15:21,699 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 04:15:21,703 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 [2024-11-22 04:15:21,703 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] [2024-11-22 04:15:21,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1250 states. [2024-11-22 04:15:21,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1250 to 1248. [2024-11-22 04:15:21,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1248 states, 1236 states have (on average 1.4611650485436893) internal successors, (1806), 1236 states have internal predecessors, (1806), 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) [2024-11-22 04:15:21,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1248 states to 1248 states and 1826 transitions. [2024-11-22 04:15:21,751 INFO L78 Accepts]: Start accepts. Automaton has 1248 states and 1826 transitions. Word has length 308 [2024-11-22 04:15:21,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:15:21,752 INFO L471 AbstractCegarLoop]: Abstraction has 1248 states and 1826 transitions. [2024-11-22 04:15:21,752 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 46.0) internal successors, (230), 5 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) [2024-11-22 04:15:21,752 INFO L276 IsEmpty]: Start isEmpty. Operand 1248 states and 1826 transitions. [2024-11-22 04:15:21,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 310 [2024-11-22 04:15:21,755 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:15:21,755 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] [2024-11-22 04:15:21,755 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-22 04:15:21,755 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:15:21,755 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:15:21,757 INFO L85 PathProgramCache]: Analyzing trace with hash 677359449, now seen corresponding path program 1 times [2024-11-22 04:15:21,757 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:15:21,757 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1498023029] [2024-11-22 04:15:21,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:15:21,757 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:15:22,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:15:22,835 INFO L134 CoverageAnalysis]: Checked inductivity of 280 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 280 trivial. 0 not checked. [2024-11-22 04:15:22,836 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:15:22,836 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1498023029] [2024-11-22 04:15:22,836 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1498023029] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:15:22,836 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:15:22,836 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-22 04:15:22,836 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1904059911] [2024-11-22 04:15:22,836 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:15:22,837 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-22 04:15:22,837 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:15:22,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-22 04:15:22,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-22 04:15:22,837 INFO L87 Difference]: Start difference. First operand 1248 states and 1826 transitions. Second operand has 7 states, 7 states have (on average 33.0) internal successors, (231), 7 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) [2024-11-22 04:15:23,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:15:23,509 INFO L93 Difference]: Finished difference Result 2195 states and 3226 transitions. [2024-11-22 04:15:23,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 04:15:23,509 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 33.0) internal successors, (231), 7 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 [2024-11-22 04:15:23,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:15:23,513 INFO L225 Difference]: With dead ends: 2195 [2024-11-22 04:15:23,513 INFO L226 Difference]: Without dead ends: 1256 [2024-11-22 04:15:23,514 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2024-11-22 04:15:23,514 INFO L432 NwaCegarLoop]: 802 mSDtfsCounter, 2098 mSDsluCounter, 2395 mSDsCounter, 0 mSdLazyCounter, 1240 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2103 SdHoareTripleChecker+Valid, 3197 SdHoareTripleChecker+Invalid, 1247 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1240 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-22 04:15:23,515 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2103 Valid, 3197 Invalid, 1247 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1240 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-22 04:15:23,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1256 states. [2024-11-22 04:15:23,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1256 to 1252. [2024-11-22 04:15:23,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1252 states, 1240 states have (on average 1.4580645161290322) internal successors, (1808), 1240 states have internal predecessors, (1808), 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) [2024-11-22 04:15:23,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1252 states to 1252 states and 1828 transitions. [2024-11-22 04:15:23,534 INFO L78 Accepts]: Start accepts. Automaton has 1252 states and 1828 transitions. Word has length 309 [2024-11-22 04:15:23,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:15:23,534 INFO L471 AbstractCegarLoop]: Abstraction has 1252 states and 1828 transitions. [2024-11-22 04:15:23,534 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 33.0) internal successors, (231), 7 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) [2024-11-22 04:15:23,534 INFO L276 IsEmpty]: Start isEmpty. Operand 1252 states and 1828 transitions. [2024-11-22 04:15:23,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 311 [2024-11-22 04:15:23,536 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:15:23,536 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] [2024-11-22 04:15:23,536 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-22 04:15:23,536 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:15:23,537 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:15:23,537 INFO L85 PathProgramCache]: Analyzing trace with hash -1771822164, now seen corresponding path program 1 times [2024-11-22 04:15:23,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:15:23,537 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1250797937] [2024-11-22 04:15:23,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:15:23,537 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:15:23,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:15:24,450 INFO L134 CoverageAnalysis]: Checked inductivity of 280 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 280 trivial. 0 not checked. [2024-11-22 04:15:24,450 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:15:24,451 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1250797937] [2024-11-22 04:15:24,451 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1250797937] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:15:24,451 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:15:24,451 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-22 04:15:24,451 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1732434763] [2024-11-22 04:15:24,451 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:15:24,452 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-22 04:15:24,452 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:15:24,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-22 04:15:24,453 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2024-11-22 04:15:24,453 INFO L87 Difference]: Start difference. First operand 1252 states and 1828 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) [2024-11-22 04:15:25,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:15:25,434 INFO L93 Difference]: Finished difference Result 2173 states and 3187 transitions. [2024-11-22 04:15:25,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-22 04:15:25,435 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 [2024-11-22 04:15:25,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:15:25,438 INFO L225 Difference]: With dead ends: 2173 [2024-11-22 04:15:25,438 INFO L226 Difference]: Without dead ends: 1284 [2024-11-22 04:15:25,440 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2024-11-22 04:15:25,440 INFO L432 NwaCegarLoop]: 806 mSDtfsCounter, 1044 mSDsluCounter, 5578 mSDsCounter, 0 mSdLazyCounter, 2461 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1047 SdHoareTripleChecker+Valid, 6384 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 [2024-11-22 04:15:25,440 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1047 Valid, 6384 Invalid, 2464 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 2461 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-22 04:15:25,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1284 states. [2024-11-22 04:15:25,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1284 to 1276. [2024-11-22 04:15:25,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1276 states, 1264 states have (on average 1.4588607594936709) internal successors, (1844), 1264 states have internal predecessors, (1844), 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) [2024-11-22 04:15:25,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1276 states to 1276 states and 1864 transitions. [2024-11-22 04:15:25,460 INFO L78 Accepts]: Start accepts. Automaton has 1276 states and 1864 transitions. Word has length 310 [2024-11-22 04:15:25,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:15:25,460 INFO L471 AbstractCegarLoop]: Abstraction has 1276 states and 1864 transitions. [2024-11-22 04:15:25,461 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) [2024-11-22 04:15:25,461 INFO L276 IsEmpty]: Start isEmpty. Operand 1276 states and 1864 transitions. [2024-11-22 04:15:25,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 312 [2024-11-22 04:15:25,463 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:15:25,463 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] [2024-11-22 04:15:25,463 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-22 04:15:25,463 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:15:25,463 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:15:25,464 INFO L85 PathProgramCache]: Analyzing trace with hash -1230701088, now seen corresponding path program 1 times [2024-11-22 04:15:25,464 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:15:25,464 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [794564847] [2024-11-22 04:15:25,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:15:25,464 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:15:25,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:15:26,381 INFO L134 CoverageAnalysis]: Checked inductivity of 280 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 280 trivial. 0 not checked. [2024-11-22 04:15:26,381 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:15:26,381 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [794564847] [2024-11-22 04:15:26,382 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [794564847] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:15:26,382 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:15:26,382 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-22 04:15:26,382 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1424072729] [2024-11-22 04:15:26,382 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:15:26,382 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-22 04:15:26,382 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:15:26,383 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-22 04:15:26,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-22 04:15:26,383 INFO L87 Difference]: Start difference. First operand 1276 states and 1864 transitions. Second operand has 7 states, 7 states have (on average 33.285714285714285) internal successors, (233), 7 states have internal predecessors, (233), 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) [2024-11-22 04:15:26,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:15:26,515 INFO L93 Difference]: Finished difference Result 2589 states and 3805 transitions. [2024-11-22 04:15:26,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 04:15:26,516 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 33.285714285714285) internal successors, (233), 7 states have internal predecessors, (233), 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 311 [2024-11-22 04:15:26,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:15:26,520 INFO L225 Difference]: With dead ends: 2589 [2024-11-22 04:15:26,521 INFO L226 Difference]: Without dead ends: 1764 [2024-11-22 04:15:26,522 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-11-22 04:15:26,522 INFO L432 NwaCegarLoop]: 1091 mSDtfsCounter, 1801 mSDsluCounter, 4352 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1806 SdHoareTripleChecker+Valid, 5443 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 [2024-11-22 04:15:26,523 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1806 Valid, 5443 Invalid, 111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 04:15:26,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1764 states. [2024-11-22 04:15:26,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1764 to 1764. [2024-11-22 04:15:26,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1764 states, 1747 states have (on average 1.4630795649685175) internal successors, (2556), 1747 states have internal predecessors, (2556), 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) [2024-11-22 04:15:26,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1764 states to 1764 states and 2586 transitions. [2024-11-22 04:15:26,551 INFO L78 Accepts]: Start accepts. Automaton has 1764 states and 2586 transitions. Word has length 311 [2024-11-22 04:15:26,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:15:26,552 INFO L471 AbstractCegarLoop]: Abstraction has 1764 states and 2586 transitions. [2024-11-22 04:15:26,552 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 33.285714285714285) internal successors, (233), 7 states have internal predecessors, (233), 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) [2024-11-22 04:15:26,552 INFO L276 IsEmpty]: Start isEmpty. Operand 1764 states and 2586 transitions. [2024-11-22 04:15:26,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 672 [2024-11-22 04:15:26,557 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:15:26,557 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, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 04:15:26,557 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-22 04:15:26,558 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:15:26,558 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:15:26,558 INFO L85 PathProgramCache]: Analyzing trace with hash -1814557334, now seen corresponding path program 1 times [2024-11-22 04:15:26,558 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:15:26,558 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [636296524] [2024-11-22 04:15:26,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:15:26,559 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:15:26,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:15:27,392 INFO L134 CoverageAnalysis]: Checked inductivity of 597 backedges. 177 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-22 04:15:27,392 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:15:27,392 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [636296524] [2024-11-22 04:15:27,392 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [636296524] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:15:27,392 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:15:27,392 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 04:15:27,392 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [543855120] [2024-11-22 04:15:27,392 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:15:27,394 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 04:15:27,394 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:15:27,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 04:15:27,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 04:15:27,395 INFO L87 Difference]: Start difference. First operand 1764 states and 2586 transitions. Second operand has 3 states, 3 states have (on average 189.33333333333334) internal successors, (568), 3 states have internal predecessors, (568), 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) [2024-11-22 04:15:27,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:15:27,425 INFO L93 Difference]: Finished difference Result 2591 states and 3807 transitions. [2024-11-22 04:15:27,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 04:15:27,426 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 189.33333333333334) internal successors, (568), 3 states have internal predecessors, (568), 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 671 [2024-11-22 04:15:27,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:15:27,430 INFO L225 Difference]: With dead ends: 2591 [2024-11-22 04:15:27,430 INFO L226 Difference]: Without dead ends: 1766 [2024-11-22 04:15:27,432 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 04:15:27,432 INFO L432 NwaCegarLoop]: 1106 mSDtfsCounter, 1 mSDsluCounter, 1102 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 2208 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 [2024-11-22 04:15:27,432 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 2208 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 04:15:27,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1766 states. [2024-11-22 04:15:27,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1766 to 1765. [2024-11-22 04:15:27,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1765 states, 1748 states have (on average 1.4628146453089246) internal successors, (2557), 1748 states have internal predecessors, (2557), 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) [2024-11-22 04:15:27,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1765 states to 1765 states and 2587 transitions. [2024-11-22 04:15:27,461 INFO L78 Accepts]: Start accepts. Automaton has 1765 states and 2587 transitions. Word has length 671 [2024-11-22 04:15:27,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:15:27,462 INFO L471 AbstractCegarLoop]: Abstraction has 1765 states and 2587 transitions. [2024-11-22 04:15:27,466 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 189.33333333333334) internal successors, (568), 3 states have internal predecessors, (568), 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) [2024-11-22 04:15:27,466 INFO L276 IsEmpty]: Start isEmpty. Operand 1765 states and 2587 transitions. [2024-11-22 04:15:27,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 674 [2024-11-22 04:15:27,473 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:15:27,473 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, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 04:15:27,473 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-22 04:15:27,473 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:15:27,473 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:15:27,474 INFO L85 PathProgramCache]: Analyzing trace with hash -2044744212, now seen corresponding path program 1 times [2024-11-22 04:15:27,474 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:15:27,474 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [521860435] [2024-11-22 04:15:27,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:15:27,474 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:15:27,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:15:28,609 INFO L134 CoverageAnalysis]: Checked inductivity of 598 backedges. 177 proven. 1 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-22 04:15:28,609 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:15:28,609 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [521860435] [2024-11-22 04:15:28,609 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [521860435] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 04:15:28,609 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1991907963] [2024-11-22 04:15:28,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:15:28,610 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 04:15:28,610 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 04:15:28,612 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) [2024-11-22 04:15:28,616 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-22 04:15:29,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:15:29,572 INFO L255 TraceCheckSpWp]: Trace formula consists of 3313 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-22 04:15:29,587 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 04:15:30,280 INFO L134 CoverageAnalysis]: Checked inductivity of 598 backedges. 277 proven. 0 refuted. 0 times theorem prover too weak. 321 trivial. 0 not checked. [2024-11-22 04:15:30,280 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 04:15:30,280 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1991907963] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:15:30,280 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 04:15:30,280 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2024-11-22 04:15:30,280 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [445617952] [2024-11-22 04:15:30,280 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:15:30,281 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 04:15:30,281 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:15:30,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 04:15:30,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-22 04:15:30,282 INFO L87 Difference]: Start difference. First operand 1765 states and 2587 transitions. Second operand has 4 states, 4 states have (on average 143.25) internal successors, (573), 4 states have internal predecessors, (573), 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) [2024-11-22 04:15:30,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:15:30,656 INFO L93 Difference]: Finished difference Result 2590 states and 3805 transitions. [2024-11-22 04:15:30,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 04:15:30,657 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 143.25) internal successors, (573), 4 states have internal predecessors, (573), 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 673 [2024-11-22 04:15:30,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:15:30,662 INFO L225 Difference]: With dead ends: 2590 [2024-11-22 04:15:30,662 INFO L226 Difference]: Without dead ends: 1764 [2024-11-22 04:15:30,663 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 677 GetRequests, 672 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-22 04:15:30,663 INFO L432 NwaCegarLoop]: 807 mSDtfsCounter, 834 mSDsluCounter, 809 mSDsCounter, 0 mSdLazyCounter, 601 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 834 SdHoareTripleChecker+Valid, 1616 SdHoareTripleChecker+Invalid, 602 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 601 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-22 04:15:30,663 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [834 Valid, 1616 Invalid, 602 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 601 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-22 04:15:30,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1764 states. [2024-11-22 04:15:30,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1764 to 1764. [2024-11-22 04:15:30,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1764 states, 1747 states have (on average 1.4619347452776188) internal successors, (2554), 1747 states have internal predecessors, (2554), 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) [2024-11-22 04:15:30,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1764 states to 1764 states and 2584 transitions. [2024-11-22 04:15:30,692 INFO L78 Accepts]: Start accepts. Automaton has 1764 states and 2584 transitions. Word has length 673 [2024-11-22 04:15:30,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:15:30,692 INFO L471 AbstractCegarLoop]: Abstraction has 1764 states and 2584 transitions. [2024-11-22 04:15:30,693 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 143.25) internal successors, (573), 4 states have internal predecessors, (573), 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) [2024-11-22 04:15:30,693 INFO L276 IsEmpty]: Start isEmpty. Operand 1764 states and 2584 transitions. [2024-11-22 04:15:30,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 675 [2024-11-22 04:15:30,699 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:15:30,699 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, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 04:15:30,715 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-11-22 04:15:30,903 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-11-22 04:15:30,904 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:15:30,904 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:15:30,905 INFO L85 PathProgramCache]: Analyzing trace with hash -1520505131, now seen corresponding path program 1 times [2024-11-22 04:15:30,905 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:15:30,905 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1312820909] [2024-11-22 04:15:30,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:15:30,905 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:15:31,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:15:31,789 INFO L134 CoverageAnalysis]: Checked inductivity of 598 backedges. 177 proven. 1 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-22 04:15:31,789 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:15:31,789 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1312820909] [2024-11-22 04:15:31,790 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1312820909] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 04:15:31,790 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [254758768] [2024-11-22 04:15:31,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:15:31,790 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 04:15:31,790 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 04:15:31,792 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) [2024-11-22 04:15:31,795 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-22 04:15:32,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:15:32,682 INFO L255 TraceCheckSpWp]: Trace formula consists of 3316 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-22 04:15:32,692 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 04:15:33,365 INFO L134 CoverageAnalysis]: Checked inductivity of 598 backedges. 277 proven. 0 refuted. 0 times theorem prover too weak. 321 trivial. 0 not checked. [2024-11-22 04:15:33,365 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 04:15:33,365 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [254758768] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:15:33,365 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 04:15:33,365 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2024-11-22 04:15:33,365 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1618623735] [2024-11-22 04:15:33,366 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:15:33,366 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 04:15:33,366 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:15:33,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 04:15:33,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-22 04:15:33,369 INFO L87 Difference]: Start difference. First operand 1764 states and 2584 transitions. Second operand has 4 states, 4 states have (on average 143.5) internal successors, (574), 4 states have internal predecessors, (574), 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) [2024-11-22 04:15:33,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:15:33,729 INFO L93 Difference]: Finished difference Result 2588 states and 3799 transitions. [2024-11-22 04:15:33,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 04:15:33,730 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 143.5) internal successors, (574), 4 states have internal predecessors, (574), 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 674 [2024-11-22 04:15:33,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:15:33,734 INFO L225 Difference]: With dead ends: 2588 [2024-11-22 04:15:33,734 INFO L226 Difference]: Without dead ends: 1763 [2024-11-22 04:15:33,735 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 678 GetRequests, 673 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-22 04:15:33,736 INFO L432 NwaCegarLoop]: 807 mSDtfsCounter, 826 mSDsluCounter, 809 mSDsCounter, 0 mSdLazyCounter, 595 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 826 SdHoareTripleChecker+Valid, 1616 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 [2024-11-22 04:15:33,736 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [826 Valid, 1616 Invalid, 596 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 595 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-22 04:15:33,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1763 states. [2024-11-22 04:15:33,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1763 to 1763. [2024-11-22 04:15:33,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1763 states, 1746 states have (on average 1.461053837342497) internal successors, (2551), 1746 states have internal predecessors, (2551), 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) [2024-11-22 04:15:33,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1763 states to 1763 states and 2581 transitions. [2024-11-22 04:15:33,758 INFO L78 Accepts]: Start accepts. Automaton has 1763 states and 2581 transitions. Word has length 674 [2024-11-22 04:15:33,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:15:33,759 INFO L471 AbstractCegarLoop]: Abstraction has 1763 states and 2581 transitions. [2024-11-22 04:15:33,759 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 143.5) internal successors, (574), 4 states have internal predecessors, (574), 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) [2024-11-22 04:15:33,759 INFO L276 IsEmpty]: Start isEmpty. Operand 1763 states and 2581 transitions. [2024-11-22 04:15:33,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 676 [2024-11-22 04:15:33,763 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:15:33,764 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, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 04:15:33,783 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-11-22 04:15:33,964 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 04:15:33,965 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:15:33,966 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:15:33,966 INFO L85 PathProgramCache]: Analyzing trace with hash -1828079682, now seen corresponding path program 1 times [2024-11-22 04:15:33,966 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:15:33,966 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1990753843] [2024-11-22 04:15:33,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:15:33,966 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:15:34,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:15:34,695 INFO L134 CoverageAnalysis]: Checked inductivity of 598 backedges. 177 proven. 1 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-22 04:15:34,695 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:15:34,695 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1990753843] [2024-11-22 04:15:34,695 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1990753843] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 04:15:34,695 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [421989047] [2024-11-22 04:15:34,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:15:34,695 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 04:15:34,695 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 04:15:34,697 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) [2024-11-22 04:15:34,700 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-22 04:15:35,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:15:35,608 INFO L255 TraceCheckSpWp]: Trace formula consists of 3319 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-22 04:15:35,616 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 04:15:36,279 INFO L134 CoverageAnalysis]: Checked inductivity of 598 backedges. 277 proven. 0 refuted. 0 times theorem prover too weak. 321 trivial. 0 not checked. [2024-11-22 04:15:36,279 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 04:15:36,279 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [421989047] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:15:36,279 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 04:15:36,279 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2024-11-22 04:15:36,280 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [824312625] [2024-11-22 04:15:36,280 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:15:36,280 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 04:15:36,280 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:15:36,281 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 04:15:36,281 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-22 04:15:36,281 INFO L87 Difference]: Start difference. First operand 1763 states and 2581 transitions. Second operand has 4 states, 4 states have (on average 143.75) internal successors, (575), 4 states have internal predecessors, (575), 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) [2024-11-22 04:15:36,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:15:36,629 INFO L93 Difference]: Finished difference Result 2586 states and 3793 transitions. [2024-11-22 04:15:36,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 04:15:36,630 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 143.75) internal successors, (575), 4 states have internal predecessors, (575), 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 675 [2024-11-22 04:15:36,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:15:36,634 INFO L225 Difference]: With dead ends: 2586 [2024-11-22 04:15:36,634 INFO L226 Difference]: Without dead ends: 1762 [2024-11-22 04:15:36,635 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 679 GetRequests, 674 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-22 04:15:36,635 INFO L432 NwaCegarLoop]: 807 mSDtfsCounter, 812 mSDsluCounter, 809 mSDsCounter, 0 mSdLazyCounter, 589 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 812 SdHoareTripleChecker+Valid, 1616 SdHoareTripleChecker+Invalid, 590 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 589 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-22 04:15:36,635 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [812 Valid, 1616 Invalid, 590 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 589 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-22 04:15:36,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1762 states. [2024-11-22 04:15:36,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1762 to 1762. [2024-11-22 04:15:36,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1762 states, 1745 states have (on average 1.4601719197707737) internal successors, (2548), 1745 states have internal predecessors, (2548), 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) [2024-11-22 04:15:36,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1762 states to 1762 states and 2578 transitions. [2024-11-22 04:15:36,660 INFO L78 Accepts]: Start accepts. Automaton has 1762 states and 2578 transitions. Word has length 675 [2024-11-22 04:15:36,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:15:36,661 INFO L471 AbstractCegarLoop]: Abstraction has 1762 states and 2578 transitions. [2024-11-22 04:15:36,661 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 143.75) internal successors, (575), 4 states have internal predecessors, (575), 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) [2024-11-22 04:15:36,661 INFO L276 IsEmpty]: Start isEmpty. Operand 1762 states and 2578 transitions. [2024-11-22 04:15:36,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 677 [2024-11-22 04:15:36,666 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:15:36,666 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, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 04:15:36,679 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2024-11-22 04:15:36,866 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 04:15:36,867 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:15:36,867 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:15:36,868 INFO L85 PathProgramCache]: Analyzing trace with hash -2105992905, now seen corresponding path program 1 times [2024-11-22 04:15:36,868 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:15:36,869 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [68703759] [2024-11-22 04:15:36,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:15:36,869 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:15:37,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:15:37,633 INFO L134 CoverageAnalysis]: Checked inductivity of 598 backedges. 177 proven. 1 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-22 04:15:37,634 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:15:37,634 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [68703759] [2024-11-22 04:15:37,634 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [68703759] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 04:15:37,634 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [423831844] [2024-11-22 04:15:37,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:15:37,634 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 04:15:37,634 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 04:15:37,636 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) [2024-11-22 04:15:37,641 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-22 04:15:38,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:15:38,571 INFO L255 TraceCheckSpWp]: Trace formula consists of 3322 conjuncts, 27 conjuncts are in the unsatisfiable core [2024-11-22 04:15:38,579 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 04:15:39,298 INFO L134 CoverageAnalysis]: Checked inductivity of 598 backedges. 277 proven. 120 refuted. 0 times theorem prover too weak. 201 trivial. 0 not checked. [2024-11-22 04:15:39,298 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 04:15:39,903 INFO L134 CoverageAnalysis]: Checked inductivity of 598 backedges. 177 proven. 0 refuted. 0 times theorem prover too weak. 421 trivial. 0 not checked. [2024-11-22 04:15:39,903 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [423831844] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-22 04:15:39,903 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-22 04:15:39,904 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4, 14] total 19 [2024-11-22 04:15:39,904 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1883567607] [2024-11-22 04:15:39,904 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:15:39,905 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 04:15:39,905 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:15:39,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 04:15:39,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=282, Unknown=0, NotChecked=0, Total=342 [2024-11-22 04:15:39,906 INFO L87 Difference]: Start difference. First operand 1762 states and 2578 transitions. Second operand has 5 states, 5 states have (on average 114.6) internal successors, (573), 5 states have internal predecessors, (573), 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) [2024-11-22 04:15:40,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:15:40,142 INFO L93 Difference]: Finished difference Result 2585 states and 3788 transitions. [2024-11-22 04:15:40,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 04:15:40,142 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 114.6) internal successors, (573), 5 states have internal predecessors, (573), 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 676 [2024-11-22 04:15:40,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:15:40,147 INFO L225 Difference]: With dead ends: 2585 [2024-11-22 04:15:40,147 INFO L226 Difference]: Without dead ends: 1762 [2024-11-22 04:15:40,148 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1355 GetRequests, 1337 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=65, Invalid=315, Unknown=0, NotChecked=0, Total=380 [2024-11-22 04:15:40,149 INFO L432 NwaCegarLoop]: 1002 mSDtfsCounter, 1817 mSDsluCounter, 1004 mSDsCounter, 0 mSdLazyCounter, 196 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1822 SdHoareTripleChecker+Valid, 2006 SdHoareTripleChecker+Invalid, 203 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 196 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-22 04:15:40,149 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1822 Valid, 2006 Invalid, 203 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 196 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-22 04:15:40,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1762 states. [2024-11-22 04:15:40,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1762 to 1762. [2024-11-22 04:15:40,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1762 states, 1745 states have (on average 1.4595988538681948) internal successors, (2547), 1745 states have internal predecessors, (2547), 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) [2024-11-22 04:15:40,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1762 states to 1762 states and 2577 transitions. [2024-11-22 04:15:40,189 INFO L78 Accepts]: Start accepts. Automaton has 1762 states and 2577 transitions. Word has length 676 [2024-11-22 04:15:40,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:15:40,190 INFO L471 AbstractCegarLoop]: Abstraction has 1762 states and 2577 transitions. [2024-11-22 04:15:40,190 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 114.6) internal successors, (573), 5 states have internal predecessors, (573), 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) [2024-11-22 04:15:40,190 INFO L276 IsEmpty]: Start isEmpty. Operand 1762 states and 2577 transitions. [2024-11-22 04:15:40,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 678 [2024-11-22 04:15:40,197 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:15:40,199 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, 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] [2024-11-22 04:15:40,213 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-11-22 04:15:40,399 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2024-11-22 04:15:40,400 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:15:40,400 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:15:40,400 INFO L85 PathProgramCache]: Analyzing trace with hash -389062218, now seen corresponding path program 1 times [2024-11-22 04:15:40,401 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:15:40,402 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2135523938] [2024-11-22 04:15:40,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:15:40,402 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:15:40,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:15:41,391 INFO L134 CoverageAnalysis]: Checked inductivity of 598 backedges. 177 proven. 1 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-22 04:15:41,391 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:15:41,391 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2135523938] [2024-11-22 04:15:41,392 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2135523938] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 04:15:41,392 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [970470303] [2024-11-22 04:15:41,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:15:41,392 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 04:15:41,392 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 04:15:41,394 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) [2024-11-22 04:15:41,395 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-22 04:15:42,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:15:42,482 INFO L255 TraceCheckSpWp]: Trace formula consists of 3325 conjuncts, 27 conjuncts are in the unsatisfiable core [2024-11-22 04:15:42,493 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 04:15:43,255 INFO L134 CoverageAnalysis]: Checked inductivity of 598 backedges. 277 proven. 120 refuted. 0 times theorem prover too weak. 201 trivial. 0 not checked. [2024-11-22 04:15:43,255 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 04:15:43,931 INFO L134 CoverageAnalysis]: Checked inductivity of 598 backedges. 177 proven. 0 refuted. 0 times theorem prover too weak. 421 trivial. 0 not checked. [2024-11-22 04:15:43,932 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [970470303] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-22 04:15:43,932 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-22 04:15:43,932 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4, 14] total 19 [2024-11-22 04:15:43,932 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [497829181] [2024-11-22 04:15:43,932 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:15:43,933 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 04:15:43,933 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:15:43,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 04:15:43,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=282, Unknown=0, NotChecked=0, Total=342 [2024-11-22 04:15:43,935 INFO L87 Difference]: Start difference. First operand 1762 states and 2577 transitions. Second operand has 5 states, 5 states have (on average 114.8) internal successors, (574), 5 states have internal predecessors, (574), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-22 04:15:44,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:15:44,090 INFO L93 Difference]: Finished difference Result 2585 states and 3786 transitions. [2024-11-22 04:15:44,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 04:15:44,092 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 114.8) internal successors, (574), 5 states have internal predecessors, (574), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 677 [2024-11-22 04:15:44,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:15:44,099 INFO L225 Difference]: With dead ends: 2585 [2024-11-22 04:15:44,100 INFO L226 Difference]: Without dead ends: 1762 [2024-11-22 04:15:44,101 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1357 GetRequests, 1339 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=65, Invalid=315, Unknown=0, NotChecked=0, Total=380 [2024-11-22 04:15:44,104 INFO L432 NwaCegarLoop]: 1002 mSDtfsCounter, 898 mSDsluCounter, 1013 mSDsCounter, 0 mSdLazyCounter, 194 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 903 SdHoareTripleChecker+Valid, 2015 SdHoareTripleChecker+Invalid, 195 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 194 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 04:15:44,105 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [903 Valid, 2015 Invalid, 195 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 194 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 04:15:44,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1762 states. [2024-11-22 04:15:44,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1762 to 1762. [2024-11-22 04:15:44,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1762 states, 1745 states have (on average 1.459025787965616) internal successors, (2546), 1745 states have internal predecessors, (2546), 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) [2024-11-22 04:15:44,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1762 states to 1762 states and 2576 transitions. [2024-11-22 04:15:44,131 INFO L78 Accepts]: Start accepts. Automaton has 1762 states and 2576 transitions. Word has length 677 [2024-11-22 04:15:44,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:15:44,132 INFO L471 AbstractCegarLoop]: Abstraction has 1762 states and 2576 transitions. [2024-11-22 04:15:44,132 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 114.8) internal successors, (574), 5 states have internal predecessors, (574), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-22 04:15:44,132 INFO L276 IsEmpty]: Start isEmpty. Operand 1762 states and 2576 transitions. [2024-11-22 04:15:44,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 679 [2024-11-22 04:15:44,136 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:15:44,137 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, 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] [2024-11-22 04:15:44,152 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-11-22 04:15:44,341 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,SelfDestructingSolverStorable21 [2024-11-22 04:15:44,343 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:15:44,344 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:15:44,344 INFO L85 PathProgramCache]: Analyzing trace with hash -1094485964, now seen corresponding path program 1 times [2024-11-22 04:15:44,344 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:15:44,344 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2037447755] [2024-11-22 04:15:44,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:15:44,345 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:15:44,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:15:45,022 INFO L134 CoverageAnalysis]: Checked inductivity of 598 backedges. 177 proven. 1 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-22 04:15:45,022 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:15:45,022 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2037447755] [2024-11-22 04:15:45,023 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2037447755] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 04:15:45,023 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1008137593] [2024-11-22 04:15:45,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:15:45,023 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 04:15:45,023 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 04:15:45,025 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) [2024-11-22 04:15:45,028 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-22 04:15:46,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:15:46,039 INFO L255 TraceCheckSpWp]: Trace formula consists of 3328 conjuncts, 27 conjuncts are in the unsatisfiable core [2024-11-22 04:15:46,047 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 04:15:46,787 INFO L134 CoverageAnalysis]: Checked inductivity of 598 backedges. 277 proven. 120 refuted. 0 times theorem prover too weak. 201 trivial. 0 not checked. [2024-11-22 04:15:46,787 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 04:15:47,534 INFO L134 CoverageAnalysis]: Checked inductivity of 598 backedges. 177 proven. 0 refuted. 0 times theorem prover too weak. 421 trivial. 0 not checked. [2024-11-22 04:15:47,534 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1008137593] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-22 04:15:47,534 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-22 04:15:47,534 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4, 14] total 19 [2024-11-22 04:15:47,534 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1416299212] [2024-11-22 04:15:47,534 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:15:47,535 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 04:15:47,536 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:15:47,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 04:15:47,537 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=282, Unknown=0, NotChecked=0, Total=342 [2024-11-22 04:15:47,537 INFO L87 Difference]: Start difference. First operand 1762 states and 2576 transitions. Second operand has 5 states, 5 states have (on average 115.0) internal successors, (575), 5 states have internal predecessors, (575), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-22 04:15:47,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:15:47,692 INFO L93 Difference]: Finished difference Result 2585 states and 3784 transitions. [2024-11-22 04:15:47,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 04:15:47,692 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 115.0) internal successors, (575), 5 states have internal predecessors, (575), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 678 [2024-11-22 04:15:47,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:15:47,697 INFO L225 Difference]: With dead ends: 2585 [2024-11-22 04:15:47,700 INFO L226 Difference]: Without dead ends: 1762 [2024-11-22 04:15:47,701 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1359 GetRequests, 1341 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=65, Invalid=315, Unknown=0, NotChecked=0, Total=380 [2024-11-22 04:15:47,702 INFO L432 NwaCegarLoop]: 1002 mSDtfsCounter, 892 mSDsluCounter, 1013 mSDsCounter, 0 mSdLazyCounter, 192 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 897 SdHoareTripleChecker+Valid, 2015 SdHoareTripleChecker+Invalid, 193 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 192 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 04:15:47,702 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [897 Valid, 2015 Invalid, 193 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 192 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 04:15:47,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1762 states. [2024-11-22 04:15:47,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1762 to 1762. [2024-11-22 04:15:47,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1762 states, 1745 states have (on average 1.4584527220630372) internal successors, (2545), 1745 states have internal predecessors, (2545), 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) [2024-11-22 04:15:47,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1762 states to 1762 states and 2575 transitions. [2024-11-22 04:15:47,729 INFO L78 Accepts]: Start accepts. Automaton has 1762 states and 2575 transitions. Word has length 678 [2024-11-22 04:15:47,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:15:47,730 INFO L471 AbstractCegarLoop]: Abstraction has 1762 states and 2575 transitions. [2024-11-22 04:15:47,730 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 115.0) internal successors, (575), 5 states have internal predecessors, (575), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-22 04:15:47,730 INFO L276 IsEmpty]: Start isEmpty. Operand 1762 states and 2575 transitions. [2024-11-22 04:15:47,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 680 [2024-11-22 04:15:47,734 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:15:47,734 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, 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] [2024-11-22 04:15:47,749 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-11-22 04:15:47,938 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 04:15:47,939 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:15:47,939 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:15:47,940 INFO L85 PathProgramCache]: Analyzing trace with hash 384017832, now seen corresponding path program 1 times [2024-11-22 04:15:47,940 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:15:47,940 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [440033205] [2024-11-22 04:15:47,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:15:47,940 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:15:48,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:15:48,584 INFO L134 CoverageAnalysis]: Checked inductivity of 598 backedges. 177 proven. 1 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-22 04:15:48,585 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:15:48,585 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [440033205] [2024-11-22 04:15:48,585 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [440033205] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 04:15:48,585 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [790643239] [2024-11-22 04:15:48,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:15:48,585 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 04:15:48,586 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 04:15:48,588 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 04:15:48,590 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-11-22 04:15:49,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:15:49,643 INFO L255 TraceCheckSpWp]: Trace formula consists of 3331 conjuncts, 27 conjuncts are in the unsatisfiable core [2024-11-22 04:15:49,651 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 04:15:50,407 INFO L134 CoverageAnalysis]: Checked inductivity of 598 backedges. 277 proven. 120 refuted. 0 times theorem prover too weak. 201 trivial. 0 not checked. [2024-11-22 04:15:50,407 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 04:15:51,161 INFO L134 CoverageAnalysis]: Checked inductivity of 598 backedges. 177 proven. 0 refuted. 0 times theorem prover too weak. 421 trivial. 0 not checked. [2024-11-22 04:15:51,161 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [790643239] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-22 04:15:51,161 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-22 04:15:51,161 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4, 14] total 19 [2024-11-22 04:15:51,162 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1162713706] [2024-11-22 04:15:51,162 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:15:51,162 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 04:15:51,162 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:15:51,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 04:15:51,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=282, Unknown=0, NotChecked=0, Total=342 [2024-11-22 04:15:51,163 INFO L87 Difference]: Start difference. First operand 1762 states and 2575 transitions. Second operand has 5 states, 5 states have (on average 115.2) internal successors, (576), 5 states have internal predecessors, (576), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-22 04:15:51,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:15:51,323 INFO L93 Difference]: Finished difference Result 2585 states and 3782 transitions. [2024-11-22 04:15:51,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 04:15:51,323 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 115.2) internal successors, (576), 5 states have internal predecessors, (576), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 679 [2024-11-22 04:15:51,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:15:51,326 INFO L225 Difference]: With dead ends: 2585 [2024-11-22 04:15:51,327 INFO L226 Difference]: Without dead ends: 1762 [2024-11-22 04:15:51,328 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1361 GetRequests, 1343 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=65, Invalid=315, Unknown=0, NotChecked=0, Total=380 [2024-11-22 04:15:51,328 INFO L432 NwaCegarLoop]: 1002 mSDtfsCounter, 1757 mSDsluCounter, 1004 mSDsCounter, 0 mSdLazyCounter, 190 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1762 SdHoareTripleChecker+Valid, 2006 SdHoareTripleChecker+Invalid, 197 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 190 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 04:15:51,328 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1762 Valid, 2006 Invalid, 197 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 190 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 04:15:51,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1762 states. [2024-11-22 04:15:51,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1762 to 1762. [2024-11-22 04:15:51,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1762 states, 1745 states have (on average 1.4578796561604586) internal successors, (2544), 1745 states have internal predecessors, (2544), 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) [2024-11-22 04:15:51,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1762 states to 1762 states and 2574 transitions. [2024-11-22 04:15:51,349 INFO L78 Accepts]: Start accepts. Automaton has 1762 states and 2574 transitions. Word has length 679 [2024-11-22 04:15:51,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:15:51,351 INFO L471 AbstractCegarLoop]: Abstraction has 1762 states and 2574 transitions. [2024-11-22 04:15:51,351 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 115.2) internal successors, (576), 5 states have internal predecessors, (576), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-22 04:15:51,351 INFO L276 IsEmpty]: Start isEmpty. Operand 1762 states and 2574 transitions. [2024-11-22 04:15:51,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 681 [2024-11-22 04:15:51,356 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:15:51,356 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, 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] [2024-11-22 04:15:51,374 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2024-11-22 04:15:51,557 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 04:15:51,558 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:15:51,558 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:15:51,558 INFO L85 PathProgramCache]: Analyzing trace with hash -841450351, now seen corresponding path program 1 times [2024-11-22 04:15:51,558 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:15:51,558 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [152488763] [2024-11-22 04:15:51,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:15:51,559 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:15:51,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:15:52,218 INFO L134 CoverageAnalysis]: Checked inductivity of 598 backedges. 177 proven. 1 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-22 04:15:52,218 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:15:52,218 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [152488763] [2024-11-22 04:15:52,218 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [152488763] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 04:15:52,218 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1111730705] [2024-11-22 04:15:52,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:15:52,218 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 04:15:52,219 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 04:15:52,221 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 04:15:52,223 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-11-22 04:15:53,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:15:53,327 INFO L255 TraceCheckSpWp]: Trace formula consists of 3334 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-22 04:15:53,335 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 04:15:53,351 INFO L134 CoverageAnalysis]: Checked inductivity of 598 backedges. 277 proven. 8 refuted. 0 times theorem prover too weak. 313 trivial. 0 not checked. [2024-11-22 04:15:53,352 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 04:15:53,391 INFO L134 CoverageAnalysis]: Checked inductivity of 598 backedges. 177 proven. 0 refuted. 0 times theorem prover too weak. 421 trivial. 0 not checked. [2024-11-22 04:15:53,391 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1111730705] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-22 04:15:53,391 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-22 04:15:53,392 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4, 4] total 7 [2024-11-22 04:15:53,392 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1420125288] [2024-11-22 04:15:53,392 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:15:53,392 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 04:15:53,392 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:15:53,393 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 04:15:53,393 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-22 04:15:53,393 INFO L87 Difference]: Start difference. First operand 1762 states and 2574 transitions. Second operand has 3 states, 3 states have (on average 192.33333333333334) internal successors, (577), 3 states have internal predecessors, (577), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-22 04:15:53,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:15:53,415 INFO L93 Difference]: Finished difference Result 2586 states and 3782 transitions. [2024-11-22 04:15:53,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 04:15:53,416 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 192.33333333333334) internal successors, (577), 3 states have internal predecessors, (577), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 680 [2024-11-22 04:15:53,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:15:53,419 INFO L225 Difference]: With dead ends: 2586 [2024-11-22 04:15:53,419 INFO L226 Difference]: Without dead ends: 1763 [2024-11-22 04:15:53,420 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1362 GetRequests, 1357 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-22 04:15:53,420 INFO L432 NwaCegarLoop]: 1093 mSDtfsCounter, 1 mSDsluCounter, 1089 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 2182 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 04:15:53,421 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 2182 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 04:15:53,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1763 states. [2024-11-22 04:15:53,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1763 to 1763. [2024-11-22 04:15:53,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1763 states, 1746 states have (on average 1.4576174112256586) internal successors, (2545), 1746 states have internal predecessors, (2545), 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) [2024-11-22 04:15:53,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1763 states to 1763 states and 2575 transitions. [2024-11-22 04:15:53,446 INFO L78 Accepts]: Start accepts. Automaton has 1763 states and 2575 transitions. Word has length 680 [2024-11-22 04:15:53,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:15:53,446 INFO L471 AbstractCegarLoop]: Abstraction has 1763 states and 2575 transitions. [2024-11-22 04:15:53,447 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 192.33333333333334) internal successors, (577), 3 states have internal predecessors, (577), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-22 04:15:53,447 INFO L276 IsEmpty]: Start isEmpty. Operand 1763 states and 2575 transitions. [2024-11-22 04:15:53,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 683 [2024-11-22 04:15:53,453 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:15:53,453 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, 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] [2024-11-22 04:15:53,470 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2024-11-22 04:15:53,653 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2024-11-22 04:15:53,654 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:15:53,654 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:15:53,655 INFO L85 PathProgramCache]: Analyzing trace with hash -626485933, now seen corresponding path program 1 times [2024-11-22 04:15:53,655 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:15:53,655 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1531713497] [2024-11-22 04:15:53,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:15:53,655 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:15:53,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:15:54,383 INFO L134 CoverageAnalysis]: Checked inductivity of 599 backedges. 177 proven. 1 refuted. 0 times theorem prover too weak. 421 trivial. 0 not checked. [2024-11-22 04:15:54,384 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:15:54,384 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1531713497] [2024-11-22 04:15:54,384 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1531713497] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 04:15:54,384 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [594185676] [2024-11-22 04:15:54,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:15:54,384 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 04:15:54,385 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 04:15:54,387 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 04:15:54,387 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-11-22 04:15:55,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:15:55,525 INFO L255 TraceCheckSpWp]: Trace formula consists of 3343 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-22 04:15:55,532 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 04:15:55,551 INFO L134 CoverageAnalysis]: Checked inductivity of 599 backedges. 277 proven. 8 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2024-11-22 04:15:55,551 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 04:15:55,587 INFO L134 CoverageAnalysis]: Checked inductivity of 599 backedges. 177 proven. 0 refuted. 0 times theorem prover too weak. 422 trivial. 0 not checked. [2024-11-22 04:15:55,587 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [594185676] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-22 04:15:55,587 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-22 04:15:55,588 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4, 4] total 7 [2024-11-22 04:15:55,588 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [568758401] [2024-11-22 04:15:55,588 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:15:55,590 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 04:15:55,590 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:15:55,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 04:15:55,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-22 04:15:55,591 INFO L87 Difference]: Start difference. First operand 1763 states and 2575 transitions. Second operand has 3 states, 3 states have (on average 193.0) internal successors, (579), 3 states have internal predecessors, (579), 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) [2024-11-22 04:15:55,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:15:55,613 INFO L93 Difference]: Finished difference Result 2588 states and 3784 transitions. [2024-11-22 04:15:55,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 04:15:55,614 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 193.0) internal successors, (579), 3 states have internal predecessors, (579), 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 682 [2024-11-22 04:15:55,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:15:55,617 INFO L225 Difference]: With dead ends: 2588 [2024-11-22 04:15:55,617 INFO L226 Difference]: Without dead ends: 1764 [2024-11-22 04:15:55,618 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1366 GetRequests, 1361 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-22 04:15:55,618 INFO L432 NwaCegarLoop]: 1093 mSDtfsCounter, 1 mSDsluCounter, 1089 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 2182 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 04:15:55,619 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 2182 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 04:15:55,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1764 states. [2024-11-22 04:15:55,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1764 to 1764. [2024-11-22 04:15:55,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1764 states, 1747 states have (on average 1.457355466514024) internal successors, (2546), 1747 states have internal predecessors, (2546), 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) [2024-11-22 04:15:55,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1764 states to 1764 states and 2576 transitions. [2024-11-22 04:15:55,639 INFO L78 Accepts]: Start accepts. Automaton has 1764 states and 2576 transitions. Word has length 682 [2024-11-22 04:15:55,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:15:55,640 INFO L471 AbstractCegarLoop]: Abstraction has 1764 states and 2576 transitions. [2024-11-22 04:15:55,640 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 193.0) internal successors, (579), 3 states have internal predecessors, (579), 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) [2024-11-22 04:15:55,640 INFO L276 IsEmpty]: Start isEmpty. Operand 1764 states and 2576 transitions. [2024-11-22 04:15:55,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 685 [2024-11-22 04:15:55,644 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:15:55,644 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, 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] [2024-11-22 04:15:55,664 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2024-11-22 04:15:55,845 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2024-11-22 04:15:55,846 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:15:55,846 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:15:55,846 INFO L85 PathProgramCache]: Analyzing trace with hash 1194082453, now seen corresponding path program 1 times [2024-11-22 04:15:55,846 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:15:55,846 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1951956033] [2024-11-22 04:15:55,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:15:55,847 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:15:56,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:15:56,478 INFO L134 CoverageAnalysis]: Checked inductivity of 600 backedges. 177 proven. 1 refuted. 0 times theorem prover too weak. 422 trivial. 0 not checked. [2024-11-22 04:15:56,478 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:15:56,478 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1951956033] [2024-11-22 04:15:56,478 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1951956033] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 04:15:56,478 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1864950577] [2024-11-22 04:15:56,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:15:56,479 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 04:15:56,479 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 04:15:56,481 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 04:15:56,482 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2024-11-22 04:15:57,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:15:57,707 INFO L255 TraceCheckSpWp]: Trace formula consists of 3352 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-22 04:15:57,715 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 04:15:57,739 INFO L134 CoverageAnalysis]: Checked inductivity of 600 backedges. 277 proven. 8 refuted. 0 times theorem prover too weak. 315 trivial. 0 not checked. [2024-11-22 04:15:57,740 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 04:15:57,867 INFO L134 CoverageAnalysis]: Checked inductivity of 600 backedges. 177 proven. 0 refuted. 0 times theorem prover too weak. 423 trivial. 0 not checked. [2024-11-22 04:15:57,868 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1864950577] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-22 04:15:57,868 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-22 04:15:57,868 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4, 4] total 7 [2024-11-22 04:15:57,869 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [615471817] [2024-11-22 04:15:57,869 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:15:57,870 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 04:15:57,870 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:15:57,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 04:15:57,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-22 04:15:57,871 INFO L87 Difference]: Start difference. First operand 1764 states and 2576 transitions. Second operand has 3 states, 3 states have (on average 193.66666666666666) internal successors, (581), 3 states have internal predecessors, (581), 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) [2024-11-22 04:15:57,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:15:57,913 INFO L93 Difference]: Finished difference Result 2590 states and 3786 transitions. [2024-11-22 04:15:57,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 04:15:57,914 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 193.66666666666666) internal successors, (581), 3 states have internal predecessors, (581), 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 684 [2024-11-22 04:15:57,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:15:57,918 INFO L225 Difference]: With dead ends: 2590 [2024-11-22 04:15:57,919 INFO L226 Difference]: Without dead ends: 1765 [2024-11-22 04:15:57,920 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1370 GetRequests, 1365 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-22 04:15:57,921 INFO L432 NwaCegarLoop]: 1093 mSDtfsCounter, 1 mSDsluCounter, 1089 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 2182 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 04:15:57,921 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 2182 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 04:15:57,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1765 states. [2024-11-22 04:15:57,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1765 to 1765. [2024-11-22 04:15:57,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1765 states, 1748 states have (on average 1.4570938215102975) internal successors, (2547), 1748 states have internal predecessors, (2547), 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) [2024-11-22 04:15:57,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1765 states to 1765 states and 2577 transitions. [2024-11-22 04:15:57,963 INFO L78 Accepts]: Start accepts. Automaton has 1765 states and 2577 transitions. Word has length 684 [2024-11-22 04:15:57,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:15:57,964 INFO L471 AbstractCegarLoop]: Abstraction has 1765 states and 2577 transitions. [2024-11-22 04:15:57,964 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 193.66666666666666) internal successors, (581), 3 states have internal predecessors, (581), 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) [2024-11-22 04:15:57,965 INFO L276 IsEmpty]: Start isEmpty. Operand 1765 states and 2577 transitions. [2024-11-22 04:15:57,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 687 [2024-11-22 04:15:57,974 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:15:57,974 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, 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] [2024-11-22 04:15:57,998 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2024-11-22 04:15:58,175 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2024-11-22 04:15:58,175 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:15:58,176 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:15:58,176 INFO L85 PathProgramCache]: Analyzing trace with hash 858127255, now seen corresponding path program 1 times [2024-11-22 04:15:58,176 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:15:58,176 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [356300051] [2024-11-22 04:15:58,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:15:58,177 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:15:58,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:15:59,122 INFO L134 CoverageAnalysis]: Checked inductivity of 601 backedges. 177 proven. 1 refuted. 0 times theorem prover too weak. 423 trivial. 0 not checked. [2024-11-22 04:15:59,122 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:15:59,122 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [356300051] [2024-11-22 04:15:59,122 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [356300051] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 04:15:59,122 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1222034884] [2024-11-22 04:15:59,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:15:59,123 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 04:15:59,123 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 04:15:59,124 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 04:15:59,126 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2024-11-22 04:16:00,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:16:00,424 INFO L255 TraceCheckSpWp]: Trace formula consists of 3361 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-22 04:16:00,432 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 04:16:00,461 INFO L134 CoverageAnalysis]: Checked inductivity of 601 backedges. 277 proven. 37 refuted. 0 times theorem prover too weak. 287 trivial. 0 not checked. [2024-11-22 04:16:00,461 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 04:16:00,512 INFO L134 CoverageAnalysis]: Checked inductivity of 601 backedges. 177 proven. 1 refuted. 0 times theorem prover too weak. 423 trivial. 0 not checked. [2024-11-22 04:16:00,512 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1222034884] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 04:16:00,512 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 04:16:00,512 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 6, 4] total 9 [2024-11-22 04:16:00,512 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [384862438] [2024-11-22 04:16:00,513 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 04:16:00,513 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-22 04:16:00,514 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:16:00,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-22 04:16:00,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2024-11-22 04:16:00,515 INFO L87 Difference]: Start difference. First operand 1765 states and 2577 transitions. Second operand has 9 states, 9 states have (on average 66.44444444444444) internal successors, (598), 9 states have internal predecessors, (598), 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) [2024-11-22 04:16:00,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:16:00,582 INFO L93 Difference]: Finished difference Result 2597 states and 3795 transitions. [2024-11-22 04:16:00,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-22 04:16:00,583 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 66.44444444444444) internal successors, (598), 9 states have internal predecessors, (598), 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 686 [2024-11-22 04:16:00,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:16:00,586 INFO L225 Difference]: With dead ends: 2597 [2024-11-22 04:16:00,587 INFO L226 Difference]: Without dead ends: 1771 [2024-11-22 04:16:00,588 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1375 GetRequests, 1367 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-22 04:16:00,588 INFO L432 NwaCegarLoop]: 1095 mSDtfsCounter, 15 mSDsluCounter, 4356 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 5451 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 04:16:00,588 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 5451 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 04:16:00,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1771 states. [2024-11-22 04:16:00,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1771 to 1771. [2024-11-22 04:16:00,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1771 states, 1754 states have (on average 1.4555302166476625) internal successors, (2553), 1754 states have internal predecessors, (2553), 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) [2024-11-22 04:16:00,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1771 states to 1771 states and 2583 transitions. [2024-11-22 04:16:00,611 INFO L78 Accepts]: Start accepts. Automaton has 1771 states and 2583 transitions. Word has length 686 [2024-11-22 04:16:00,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:16:00,612 INFO L471 AbstractCegarLoop]: Abstraction has 1771 states and 2583 transitions. [2024-11-22 04:16:00,612 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 66.44444444444444) internal successors, (598), 9 states have internal predecessors, (598), 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) [2024-11-22 04:16:00,612 INFO L276 IsEmpty]: Start isEmpty. Operand 1771 states and 2583 transitions. [2024-11-22 04:16:00,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 693 [2024-11-22 04:16:00,617 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:16:00,617 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 8, 8, 8, 8, 8, 8, 8, 8, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-22 04:16:00,635 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2024-11-22 04:16:00,818 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27,20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 04:16:00,818 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:16:00,819 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:16:00,819 INFO L85 PathProgramCache]: Analyzing trace with hash 1296135889, now seen corresponding path program 2 times [2024-11-22 04:16:00,819 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:16:00,820 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2016040545] [2024-11-22 04:16:00,820 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-22 04:16:00,820 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:16:00,966 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-22 04:16:00,966 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 04:16:01,205 INFO L134 CoverageAnalysis]: Checked inductivity of 616 backedges. 87 proven. 0 refuted. 0 times theorem prover too weak. 529 trivial. 0 not checked. [2024-11-22 04:16:01,205 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:16:01,205 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2016040545] [2024-11-22 04:16:01,205 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2016040545] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:16:01,205 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:16:01,205 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-22 04:16:01,205 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2115432307] [2024-11-22 04:16:01,205 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:16:01,206 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-22 04:16:01,206 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:16:01,207 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-22 04:16:01,207 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-22 04:16:01,207 INFO L87 Difference]: Start difference. First operand 1771 states and 2583 transitions. Second operand has 7 states, 7 states have (on average 71.28571428571429) internal successors, (499), 7 states have internal predecessors, (499), 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) [2024-11-22 04:16:01,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:16:01,271 INFO L93 Difference]: Finished difference Result 2611 states and 3809 transitions. [2024-11-22 04:16:01,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-22 04:16:01,272 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 71.28571428571429) internal successors, (499), 7 states have internal predecessors, (499), 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 692 [2024-11-22 04:16:01,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:16:01,275 INFO L225 Difference]: With dead ends: 2611 [2024-11-22 04:16:01,275 INFO L226 Difference]: Without dead ends: 1779 [2024-11-22 04:16:01,276 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-22 04:16:01,276 INFO L432 NwaCegarLoop]: 1088 mSDtfsCounter, 149 mSDsluCounter, 5423 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 6511 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 [2024-11-22 04:16:01,276 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [149 Valid, 6511 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 04:16:01,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1779 states. [2024-11-22 04:16:01,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1779 to 1772. [2024-11-22 04:16:01,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1772 states, 1755 states have (on average 1.4558404558404558) internal successors, (2555), 1755 states have internal predecessors, (2555), 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) [2024-11-22 04:16:01,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1772 states to 1772 states and 2585 transitions. [2024-11-22 04:16:01,297 INFO L78 Accepts]: Start accepts. Automaton has 1772 states and 2585 transitions. Word has length 692 [2024-11-22 04:16:01,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:16:01,298 INFO L471 AbstractCegarLoop]: Abstraction has 1772 states and 2585 transitions. [2024-11-22 04:16:01,298 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 71.28571428571429) internal successors, (499), 7 states have internal predecessors, (499), 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) [2024-11-22 04:16:01,298 INFO L276 IsEmpty]: Start isEmpty. Operand 1772 states and 2585 transitions. [2024-11-22 04:16:01,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 693 [2024-11-22 04:16:01,302 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:16:01,302 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 8, 8, 8, 8, 8, 8, 8, 8, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-22 04:16:01,302 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-11-22 04:16:01,302 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:16:01,302 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:16:01,303 INFO L85 PathProgramCache]: Analyzing trace with hash -1919450564, now seen corresponding path program 1 times [2024-11-22 04:16:01,303 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:16:01,303 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1087069520] [2024-11-22 04:16:01,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:16:01,303 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:16:01,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:16:02,232 INFO L134 CoverageAnalysis]: Checked inductivity of 615 backedges. 176 proven. 16 refuted. 0 times theorem prover too weak. 423 trivial. 0 not checked. [2024-11-22 04:16:02,233 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:16:02,233 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1087069520] [2024-11-22 04:16:02,233 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1087069520] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 04:16:02,233 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2098384005] [2024-11-22 04:16:02,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:16:02,233 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 04:16:02,233 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 04:16:02,237 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 04:16:02,238 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2024-11-22 04:16:03,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:16:03,555 INFO L255 TraceCheckSpWp]: Trace formula consists of 3388 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-22 04:16:03,564 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 04:16:03,754 INFO L134 CoverageAnalysis]: Checked inductivity of 615 backedges. 112 proven. 27 refuted. 0 times theorem prover too weak. 476 trivial. 0 not checked. [2024-11-22 04:16:03,754 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 04:16:03,846 INFO L134 CoverageAnalysis]: Checked inductivity of 615 backedges. 112 proven. 0 refuted. 0 times theorem prover too weak. 503 trivial. 0 not checked. [2024-11-22 04:16:03,847 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2098384005] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-22 04:16:03,847 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-22 04:16:03,848 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7, 8] total 16 [2024-11-22 04:16:03,848 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [678642764] [2024-11-22 04:16:03,848 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:16:03,848 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 04:16:03,849 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:16:03,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 04:16:03,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2024-11-22 04:16:03,850 INFO L87 Difference]: Start difference. First operand 1772 states and 2585 transitions. Second operand has 5 states, 5 states have (on average 105.0) internal successors, (525), 5 states have internal predecessors, (525), 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) [2024-11-22 04:16:03,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:16:03,887 INFO L93 Difference]: Finished difference Result 2883 states and 4209 transitions. [2024-11-22 04:16:03,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 04:16:03,888 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 105.0) internal successors, (525), 5 states have internal predecessors, (525), 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 692 [2024-11-22 04:16:03,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:16:03,891 INFO L225 Difference]: With dead ends: 2883 [2024-11-22 04:16:03,891 INFO L226 Difference]: Without dead ends: 1890 [2024-11-22 04:16:03,892 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1389 GetRequests, 1375 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2024-11-22 04:16:03,893 INFO L432 NwaCegarLoop]: 1092 mSDtfsCounter, 40 mSDsluCounter, 3264 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 4356 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 04:16:03,893 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 4356 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 04:16:03,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1890 states. [2024-11-22 04:16:03,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1890 to 1890. [2024-11-22 04:16:03,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1890 states, 1873 states have (on average 1.4538174052322477) internal successors, (2723), 1873 states have internal predecessors, (2723), 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) [2024-11-22 04:16:03,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1890 states to 1890 states and 2753 transitions. [2024-11-22 04:16:03,919 INFO L78 Accepts]: Start accepts. Automaton has 1890 states and 2753 transitions. Word has length 692 [2024-11-22 04:16:03,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:16:03,919 INFO L471 AbstractCegarLoop]: Abstraction has 1890 states and 2753 transitions. [2024-11-22 04:16:03,920 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 105.0) internal successors, (525), 5 states have internal predecessors, (525), 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) [2024-11-22 04:16:03,920 INFO L276 IsEmpty]: Start isEmpty. Operand 1890 states and 2753 transitions. [2024-11-22 04:16:03,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 694 [2024-11-22 04:16:03,924 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:16:03,924 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 8, 8, 8, 8, 8, 8, 8, 8, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-22 04:16:03,943 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2024-11-22 04:16:04,124 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 04:16:04,125 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:16:04,125 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:16:04,125 INFO L85 PathProgramCache]: Analyzing trace with hash 1844854540, now seen corresponding path program 1 times [2024-11-22 04:16:04,126 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:16:04,126 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2081494692] [2024-11-22 04:16:04,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:16:04,126 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:16:04,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:16:04,965 INFO L134 CoverageAnalysis]: Checked inductivity of 616 backedges. 177 proven. 16 refuted. 0 times theorem prover too weak. 423 trivial. 0 not checked. [2024-11-22 04:16:04,965 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:16:04,965 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2081494692] [2024-11-22 04:16:04,965 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2081494692] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 04:16:04,965 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1215659926] [2024-11-22 04:16:04,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:16:04,966 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 04:16:04,966 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 04:16:04,968 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 04:16:04,969 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2024-11-22 04:16:06,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:16:06,388 INFO L255 TraceCheckSpWp]: Trace formula consists of 3389 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-22 04:16:06,395 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 04:16:06,459 INFO L134 CoverageAnalysis]: Checked inductivity of 616 backedges. 277 proven. 112 refuted. 0 times theorem prover too weak. 227 trivial. 0 not checked. [2024-11-22 04:16:06,460 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 04:16:06,561 INFO L134 CoverageAnalysis]: Checked inductivity of 616 backedges. 177 proven. 16 refuted. 0 times theorem prover too weak. 423 trivial. 0 not checked. [2024-11-22 04:16:06,561 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1215659926] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 04:16:06,561 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 04:16:06,561 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 12, 7] total 18 [2024-11-22 04:16:06,562 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2079521469] [2024-11-22 04:16:06,562 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 04:16:06,562 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-22 04:16:06,563 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:16:06,563 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-22 04:16:06,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=240, Unknown=0, NotChecked=0, Total=306 [2024-11-22 04:16:06,564 INFO L87 Difference]: Start difference. First operand 1890 states and 2753 transitions. Second operand has 18 states, 18 states have (on average 34.611111111111114) internal successors, (623), 18 states have internal predecessors, (623), 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) [2024-11-22 04:16:06,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:16:06,825 INFO L93 Difference]: Finished difference Result 2779 states and 4050 transitions. [2024-11-22 04:16:06,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-22 04:16:06,825 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 34.611111111111114) internal successors, (623), 18 states have internal predecessors, (623), 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 693 [2024-11-22 04:16:06,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:16:06,832 INFO L225 Difference]: With dead ends: 2779 [2024-11-22 04:16:06,833 INFO L226 Difference]: Without dead ends: 1898 [2024-11-22 04:16:06,834 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1393 GetRequests, 1375 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=88, Invalid=292, Unknown=0, NotChecked=0, Total=380 [2024-11-22 04:16:06,834 INFO L432 NwaCegarLoop]: 1110 mSDtfsCounter, 29 mSDsluCounter, 12146 mSDsCounter, 0 mSdLazyCounter, 308 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 13256 SdHoareTripleChecker+Invalid, 309 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 308 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 04:16:06,838 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 13256 Invalid, 309 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 308 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 04:16:06,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1898 states. [2024-11-22 04:16:06,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1898 to 1898. [2024-11-22 04:16:06,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1898 states, 1881 states have (on average 1.4518872939925571) internal successors, (2731), 1881 states have internal predecessors, (2731), 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) [2024-11-22 04:16:06,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1898 states to 1898 states and 2761 transitions. [2024-11-22 04:16:06,888 INFO L78 Accepts]: Start accepts. Automaton has 1898 states and 2761 transitions. Word has length 693 [2024-11-22 04:16:06,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:16:06,892 INFO L471 AbstractCegarLoop]: Abstraction has 1898 states and 2761 transitions. [2024-11-22 04:16:06,892 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 34.611111111111114) internal successors, (623), 18 states have internal predecessors, (623), 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) [2024-11-22 04:16:06,892 INFO L276 IsEmpty]: Start isEmpty. Operand 1898 states and 2761 transitions. [2024-11-22 04:16:06,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 702 [2024-11-22 04:16:06,900 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:16:06,901 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 8, 8, 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, 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] [2024-11-22 04:16:06,942 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0 [2024-11-22 04:16:07,101 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 04:16:07,102 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:16:07,102 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:16:07,102 INFO L85 PathProgramCache]: Analyzing trace with hash -1002948588, now seen corresponding path program 2 times [2024-11-22 04:16:07,102 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:16:07,102 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [383404298] [2024-11-22 04:16:07,102 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-22 04:16:07,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:16:07,359 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-22 04:16:07,359 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 04:16:07,596 INFO L134 CoverageAnalysis]: Checked inductivity of 664 backedges. 168 proven. 4 refuted. 0 times theorem prover too weak. 492 trivial. 0 not checked. [2024-11-22 04:16:07,596 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:16:07,596 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [383404298] [2024-11-22 04:16:07,596 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [383404298] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 04:16:07,596 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [549225451] [2024-11-22 04:16:07,596 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-22 04:16:07,598 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 04:16:07,598 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 04:16:07,600 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 04:16:07,604 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2024-11-22 04:16:08,755 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-22 04:16:08,755 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 04:16:08,762 INFO L255 TraceCheckSpWp]: Trace formula consists of 823 conjuncts, 39 conjuncts are in the unsatisfiable core [2024-11-22 04:16:08,770 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 04:16:09,723 INFO L134 CoverageAnalysis]: Checked inductivity of 664 backedges. 268 proven. 4 refuted. 0 times theorem prover too weak. 392 trivial. 0 not checked. [2024-11-22 04:16:09,723 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 04:16:11,058 INFO L134 CoverageAnalysis]: Checked inductivity of 664 backedges. 165 proven. 7 refuted. 0 times theorem prover too weak. 492 trivial. 0 not checked. [2024-11-22 04:16:11,058 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [549225451] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 04:16:11,058 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 04:16:11,058 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 9] total 16 [2024-11-22 04:16:11,058 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1907532241] [2024-11-22 04:16:11,058 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 04:16:11,059 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-22 04:16:11,059 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:16:11,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-22 04:16:11,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2024-11-22 04:16:11,061 INFO L87 Difference]: Start difference. First operand 1898 states and 2761 transitions. Second operand has 16 states, 16 states have (on average 62.625) internal successors, (1002), 16 states have internal predecessors, (1002), 3 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2024-11-22 04:16:12,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:16:12,159 INFO L93 Difference]: Finished difference Result 3469 states and 5061 transitions. [2024-11-22 04:16:12,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-22 04:16:12,159 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 62.625) internal successors, (1002), 16 states have internal predecessors, (1002), 3 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) Word has length 701 [2024-11-22 04:16:12,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:16:12,163 INFO L225 Difference]: With dead ends: 3469 [2024-11-22 04:16:12,163 INFO L226 Difference]: Without dead ends: 1904 [2024-11-22 04:16:12,165 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1412 GetRequests, 1393 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=78, Invalid=342, Unknown=0, NotChecked=0, Total=420 [2024-11-22 04:16:12,169 INFO L432 NwaCegarLoop]: 795 mSDtfsCounter, 1366 mSDsluCounter, 5537 mSDsCounter, 0 mSdLazyCounter, 2439 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1366 SdHoareTripleChecker+Valid, 6332 SdHoareTripleChecker+Invalid, 2441 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 2439 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-22 04:16:12,170 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1366 Valid, 6332 Invalid, 2441 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 2439 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-22 04:16:12,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1904 states. [2024-11-22 04:16:12,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1904 to 1901. [2024-11-22 04:16:12,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1901 states, 1884 states have (on average 1.451167728237792) internal successors, (2734), 1884 states have internal predecessors, (2734), 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) [2024-11-22 04:16:12,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1901 states to 1901 states and 2764 transitions. [2024-11-22 04:16:12,222 INFO L78 Accepts]: Start accepts. Automaton has 1901 states and 2764 transitions. Word has length 701 [2024-11-22 04:16:12,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:16:12,226 INFO L471 AbstractCegarLoop]: Abstraction has 1901 states and 2764 transitions. [2024-11-22 04:16:12,227 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 62.625) internal successors, (1002), 16 states have internal predecessors, (1002), 3 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2024-11-22 04:16:12,227 INFO L276 IsEmpty]: Start isEmpty. Operand 1901 states and 2764 transitions. [2024-11-22 04:16:12,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 704 [2024-11-22 04:16:12,239 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:16:12,240 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 8, 8, 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, 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] [2024-11-22 04:16:12,269 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2024-11-22 04:16:12,440 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 04:16:12,441 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:16:12,441 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:16:12,441 INFO L85 PathProgramCache]: Analyzing trace with hash 716530726, now seen corresponding path program 1 times [2024-11-22 04:16:12,444 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:16:12,444 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [874576032] [2024-11-22 04:16:12,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:16:12,444 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:16:12,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:16:13,716 INFO L134 CoverageAnalysis]: Checked inductivity of 665 backedges. 178 proven. 0 refuted. 0 times theorem prover too weak. 487 trivial. 0 not checked. [2024-11-22 04:16:13,716 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:16:13,717 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [874576032] [2024-11-22 04:16:13,717 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [874576032] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:16:13,717 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:16:13,717 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 04:16:13,717 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1567260003] [2024-11-22 04:16:13,717 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:16:13,718 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 04:16:13,718 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:16:13,719 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 04:16:13,719 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 04:16:13,719 INFO L87 Difference]: Start difference. First operand 1901 states and 2764 transitions. Second operand has 6 states, 6 states have (on average 97.66666666666667) internal successors, (586), 6 states have internal predecessors, (586), 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) [2024-11-22 04:16:14,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:16:14,642 INFO L93 Difference]: Finished difference Result 3663 states and 5324 transitions. [2024-11-22 04:16:14,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 04:16:14,642 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 97.66666666666667) internal successors, (586), 6 states have internal predecessors, (586), 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 703 [2024-11-22 04:16:14,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:16:14,647 INFO L225 Difference]: With dead ends: 3663 [2024-11-22 04:16:14,647 INFO L226 Difference]: Without dead ends: 2773 [2024-11-22 04:16:14,648 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-22 04:16:14,651 INFO L432 NwaCegarLoop]: 1054 mSDtfsCounter, 628 mSDsluCounter, 3504 mSDsCounter, 0 mSdLazyCounter, 1709 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 628 SdHoareTripleChecker+Valid, 4558 SdHoareTripleChecker+Invalid, 1709 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1709 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-22 04:16:14,652 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [628 Valid, 4558 Invalid, 1709 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1709 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-22 04:16:14,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2773 states. [2024-11-22 04:16:14,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2773 to 2627. [2024-11-22 04:16:14,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2627 states, 2605 states have (on average 1.4510556621881) internal successors, (3780), 2605 states have internal predecessors, (3780), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-22 04:16:14,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2627 states to 2627 states and 3820 transitions. [2024-11-22 04:16:14,694 INFO L78 Accepts]: Start accepts. Automaton has 2627 states and 3820 transitions. Word has length 703 [2024-11-22 04:16:14,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:16:14,694 INFO L471 AbstractCegarLoop]: Abstraction has 2627 states and 3820 transitions. [2024-11-22 04:16:14,694 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 97.66666666666667) internal successors, (586), 6 states have internal predecessors, (586), 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) [2024-11-22 04:16:14,694 INFO L276 IsEmpty]: Start isEmpty. Operand 2627 states and 3820 transitions. [2024-11-22 04:16:14,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 704 [2024-11-22 04:16:14,699 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:16:14,700 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 8, 8, 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, 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] [2024-11-22 04:16:14,700 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-11-22 04:16:14,700 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:16:14,700 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:16:14,701 INFO L85 PathProgramCache]: Analyzing trace with hash -305074780, now seen corresponding path program 1 times [2024-11-22 04:16:14,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:16:14,701 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [578449382] [2024-11-22 04:16:14,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:16:14,701 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:16:14,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:16:15,413 INFO L134 CoverageAnalysis]: Checked inductivity of 665 backedges. 178 proven. 1 refuted. 0 times theorem prover too weak. 486 trivial. 0 not checked. [2024-11-22 04:16:15,413 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:16:15,413 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [578449382] [2024-11-22 04:16:15,413 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [578449382] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 04:16:15,413 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1713045381] [2024-11-22 04:16:15,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:16:15,413 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 04:16:15,414 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 04:16:15,416 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 04:16:15,420 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2024-11-22 04:16:16,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:16:16,995 INFO L255 TraceCheckSpWp]: Trace formula consists of 3427 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-22 04:16:17,003 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 04:16:17,037 INFO L134 CoverageAnalysis]: Checked inductivity of 665 backedges. 278 proven. 37 refuted. 0 times theorem prover too weak. 350 trivial. 0 not checked. [2024-11-22 04:16:17,037 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 04:16:17,095 INFO L134 CoverageAnalysis]: Checked inductivity of 665 backedges. 178 proven. 1 refuted. 0 times theorem prover too weak. 486 trivial. 0 not checked. [2024-11-22 04:16:17,095 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1713045381] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 04:16:17,096 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 04:16:17,096 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 6, 4] total 9 [2024-11-22 04:16:17,096 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1628255329] [2024-11-22 04:16:17,096 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 04:16:17,097 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-22 04:16:17,097 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:16:17,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-22 04:16:17,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2024-11-22 04:16:17,099 INFO L87 Difference]: Start difference. First operand 2627 states and 3820 transitions. Second operand has 9 states, 9 states have (on average 66.77777777777777) internal successors, (601), 9 states have internal predecessors, (601), 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) [2024-11-22 04:16:17,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:16:17,170 INFO L93 Difference]: Finished difference Result 3523 states and 5123 transitions. [2024-11-22 04:16:17,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-22 04:16:17,171 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 66.77777777777777) internal successors, (601), 9 states have internal predecessors, (601), 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 703 [2024-11-22 04:16:17,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:16:17,176 INFO L225 Difference]: With dead ends: 3523 [2024-11-22 04:16:17,176 INFO L226 Difference]: Without dead ends: 2633 [2024-11-22 04:16:17,177 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1409 GetRequests, 1401 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-22 04:16:17,177 INFO L432 NwaCegarLoop]: 1095 mSDtfsCounter, 15 mSDsluCounter, 5447 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 6542 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 04:16:17,178 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 6542 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 04:16:17,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2633 states. [2024-11-22 04:16:17,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2633 to 2633. [2024-11-22 04:16:17,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2633 states, 2611 states have (on average 1.4500191497510533) internal successors, (3786), 2611 states have internal predecessors, (3786), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-22 04:16:17,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2633 states to 2633 states and 3826 transitions. [2024-11-22 04:16:17,209 INFO L78 Accepts]: Start accepts. Automaton has 2633 states and 3826 transitions. Word has length 703 [2024-11-22 04:16:17,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:16:17,209 INFO L471 AbstractCegarLoop]: Abstraction has 2633 states and 3826 transitions. [2024-11-22 04:16:17,209 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 66.77777777777777) internal successors, (601), 9 states have internal predecessors, (601), 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) [2024-11-22 04:16:17,210 INFO L276 IsEmpty]: Start isEmpty. Operand 2633 states and 3826 transitions. [2024-11-22 04:16:17,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 710 [2024-11-22 04:16:17,214 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:16:17,214 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-22 04:16:17,233 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Ended with exit code 0 [2024-11-22 04:16:17,415 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33,24 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 04:16:17,415 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:16:17,416 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:16:17,416 INFO L85 PathProgramCache]: Analyzing trace with hash -882182038, now seen corresponding path program 2 times [2024-11-22 04:16:17,416 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:16:17,416 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1263952976] [2024-11-22 04:16:17,416 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-22 04:16:17,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:16:17,578 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-22 04:16:17,579 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 04:16:18,231 INFO L134 CoverageAnalysis]: Checked inductivity of 680 backedges. 87 proven. 0 refuted. 0 times theorem prover too weak. 593 trivial. 0 not checked. [2024-11-22 04:16:18,231 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:16:18,231 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1263952976] [2024-11-22 04:16:18,231 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1263952976] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:16:18,231 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:16:18,231 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-22 04:16:18,231 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [529828660] [2024-11-22 04:16:18,231 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:16:18,232 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-22 04:16:18,232 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:16:18,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-22 04:16:18,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2024-11-22 04:16:18,233 INFO L87 Difference]: Start difference. First operand 2633 states and 3826 transitions. Second operand has 11 states, 11 states have (on average 45.63636363636363) internal successors, (502), 11 states have internal predecessors, (502), 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) [2024-11-22 04:16:19,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:16:19,256 INFO L93 Difference]: Finished difference Result 3546 states and 5149 transitions. [2024-11-22 04:16:19,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-22 04:16:19,257 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 45.63636363636363) internal successors, (502), 11 states have internal predecessors, (502), 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 709 [2024-11-22 04:16:19,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:16:19,261 INFO L225 Difference]: With dead ends: 3546 [2024-11-22 04:16:19,261 INFO L226 Difference]: Without dead ends: 2650 [2024-11-22 04:16:19,262 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2024-11-22 04:16:19,263 INFO L432 NwaCegarLoop]: 802 mSDtfsCounter, 978 mSDsluCounter, 5507 mSDsCounter, 0 mSdLazyCounter, 2404 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 978 SdHoareTripleChecker+Valid, 6309 SdHoareTripleChecker+Invalid, 2406 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 2404 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-22 04:16:19,263 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [978 Valid, 6309 Invalid, 2406 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 2404 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-22 04:16:19,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2650 states. [2024-11-22 04:16:19,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2650 to 2640. [2024-11-22 04:16:19,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2640 states, 2618 states have (on average 1.449579831932773) internal successors, (3795), 2618 states have internal predecessors, (3795), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-22 04:16:19,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2640 states to 2640 states and 3835 transitions. [2024-11-22 04:16:19,294 INFO L78 Accepts]: Start accepts. Automaton has 2640 states and 3835 transitions. Word has length 709 [2024-11-22 04:16:19,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:16:19,295 INFO L471 AbstractCegarLoop]: Abstraction has 2640 states and 3835 transitions. [2024-11-22 04:16:19,295 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 45.63636363636363) internal successors, (502), 11 states have internal predecessors, (502), 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) [2024-11-22 04:16:19,295 INFO L276 IsEmpty]: Start isEmpty. Operand 2640 states and 3835 transitions. [2024-11-22 04:16:19,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 710 [2024-11-22 04:16:19,299 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:16:19,300 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-22 04:16:19,300 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2024-11-22 04:16:19,300 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:16:19,300 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:16:19,300 INFO L85 PathProgramCache]: Analyzing trace with hash -492284545, now seen corresponding path program 1 times [2024-11-22 04:16:19,300 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:16:19,300 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [430636724] [2024-11-22 04:16:19,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:16:19,301 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:16:19,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:16:20,154 INFO L134 CoverageAnalysis]: Checked inductivity of 679 backedges. 177 proven. 16 refuted. 0 times theorem prover too weak. 486 trivial. 0 not checked. [2024-11-22 04:16:20,155 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:16:20,155 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [430636724] [2024-11-22 04:16:20,155 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [430636724] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 04:16:20,155 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [653947424] [2024-11-22 04:16:20,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:16:20,155 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 04:16:20,155 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 04:16:20,157 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 04:16:20,158 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process