./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount250_file-7.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3061b6dc Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount250_file-7.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 130cb710857a69d51693f7c988d1089df72445a1bc96f77f0c94bfd1e5cc2bd5 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-18 23:46:23,952 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-18 23:46:24,049 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-18 23:46:24,054 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-18 23:46:24,055 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-18 23:46:24,077 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-18 23:46:24,078 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-18 23:46:24,078 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-18 23:46:24,079 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-18 23:46:24,079 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-18 23:46:24,080 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-18 23:46:24,080 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-18 23:46:24,081 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-18 23:46:24,082 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-18 23:46:24,082 INFO L153 SettingsManager]: * Use SBE=true [2024-11-18 23:46:24,082 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-18 23:46:24,083 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-18 23:46:24,083 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-18 23:46:24,083 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-18 23:46:24,084 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-18 23:46:24,087 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-18 23:46:24,091 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-18 23:46:24,091 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-18 23:46:24,091 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-18 23:46:24,092 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-18 23:46:24,093 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-18 23:46:24,093 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-18 23:46:24,093 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-18 23:46:24,093 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-18 23:46:24,094 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-18 23:46:24,094 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-18 23:46:24,095 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-18 23:46:24,095 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 23:46:24,095 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-18 23:46:24,096 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-18 23:46:24,096 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-18 23:46:24,096 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-18 23:46:24,096 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-18 23:46:24,097 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-18 23:46:24,097 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-18 23:46:24,097 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-18 23:46:24,098 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-18 23:46:24,098 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 130cb710857a69d51693f7c988d1089df72445a1bc96f77f0c94bfd1e5cc2bd5 [2024-11-18 23:46:24,367 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-18 23:46:24,392 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-18 23:46:24,395 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-18 23:46:24,396 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-18 23:46:24,397 INFO L274 PluginConnector]: CDTParser initialized [2024-11-18 23:46:24,398 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount250_file-7.i [2024-11-18 23:46:25,825 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-18 23:46:26,061 INFO L384 CDTParser]: Found 1 translation units. [2024-11-18 23:46:26,062 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount250_file-7.i [2024-11-18 23:46:26,075 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5130a516e/66c7cd2647574ad492382f052b5d20e3/FLAG3817a47ec [2024-11-18 23:46:26,397 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5130a516e/66c7cd2647574ad492382f052b5d20e3 [2024-11-18 23:46:26,399 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-18 23:46:26,400 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-18 23:46:26,402 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-18 23:46:26,403 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-18 23:46:26,408 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-18 23:46:26,408 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 11:46:26" (1/1) ... [2024-11-18 23:46:26,409 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7260d90c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:46:26, skipping insertion in model container [2024-11-18 23:46:26,409 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 11:46:26" (1/1) ... [2024-11-18 23:46:26,461 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-18 23:46:26,652 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/hardness-nfm22/hardness_operatoramount_amount250_file-7.i[915,928] [2024-11-18 23:46:26,824 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 23:46:26,838 INFO L200 MainTranslator]: Completed pre-run [2024-11-18 23:46:26,848 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/hardness-nfm22/hardness_operatoramount_amount250_file-7.i[915,928] [2024-11-18 23:46:26,944 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 23:46:26,975 INFO L204 MainTranslator]: Completed translation [2024-11-18 23:46:26,976 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:46:26 WrapperNode [2024-11-18 23:46:26,976 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-18 23:46:26,977 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-18 23:46:26,977 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-18 23:46:26,978 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-18 23:46:26,984 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:46:26" (1/1) ... [2024-11-18 23:46:27,001 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:46:26" (1/1) ... [2024-11-18 23:46:27,065 INFO L138 Inliner]: procedures = 26, calls = 71, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 510 [2024-11-18 23:46:27,066 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-18 23:46:27,067 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-18 23:46:27,070 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-18 23:46:27,070 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-18 23:46:27,083 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:46:26" (1/1) ... [2024-11-18 23:46:27,083 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:46:26" (1/1) ... [2024-11-18 23:46:27,091 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:46:26" (1/1) ... [2024-11-18 23:46:27,120 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-18 23:46:27,120 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:46:26" (1/1) ... [2024-11-18 23:46:27,120 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:46:26" (1/1) ... [2024-11-18 23:46:27,151 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:46:26" (1/1) ... [2024-11-18 23:46:27,158 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:46:26" (1/1) ... [2024-11-18 23:46:27,163 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:46:26" (1/1) ... [2024-11-18 23:46:27,168 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:46:26" (1/1) ... [2024-11-18 23:46:27,180 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-18 23:46:27,182 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-18 23:46:27,182 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-18 23:46:27,183 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-18 23:46:27,184 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:46:26" (1/1) ... [2024-11-18 23:46:27,190 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 23:46:27,202 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 23:46:27,222 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-18 23:46:27,233 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-18 23:46:27,282 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-18 23:46:27,283 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-18 23:46:27,283 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-18 23:46:27,283 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-18 23:46:27,283 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-18 23:46:27,283 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-18 23:46:27,413 INFO L238 CfgBuilder]: Building ICFG [2024-11-18 23:46:27,416 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-18 23:46:28,314 INFO L? ?]: Removed 58 outVars from TransFormulas that were not future-live. [2024-11-18 23:46:28,314 INFO L287 CfgBuilder]: Performing block encoding [2024-11-18 23:46:28,336 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-18 23:46:28,337 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-18 23:46:28,337 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 11:46:28 BoogieIcfgContainer [2024-11-18 23:46:28,337 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-18 23:46:28,339 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-18 23:46:28,339 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-18 23:46:28,342 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-18 23:46:28,342 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 11:46:26" (1/3) ... [2024-11-18 23:46:28,344 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@414fd7fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 11:46:28, skipping insertion in model container [2024-11-18 23:46:28,344 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:46:26" (2/3) ... [2024-11-18 23:46:28,345 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@414fd7fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 11:46:28, skipping insertion in model container [2024-11-18 23:46:28,345 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 11:46:28" (3/3) ... [2024-11-18 23:46:28,347 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount250_file-7.i [2024-11-18 23:46:28,364 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-18 23:46:28,364 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-18 23:46:28,442 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-18 23:46:28,449 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;@ab2c36b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-18 23:46:28,450 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-18 23:46:28,456 INFO L276 IsEmpty]: Start isEmpty. Operand has 208 states, 147 states have (on average 1.5034013605442176) internal successors, (221), 148 states have internal predecessors, (221), 58 states have call successors, (58), 1 states have call predecessors, (58), 1 states have return successors, (58), 58 states have call predecessors, (58), 58 states have call successors, (58) [2024-11-18 23:46:28,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 368 [2024-11-18 23:46:28,484 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 23:46:28,485 INFO L215 NwaCegarLoop]: trace histogram [58, 58, 58, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 23:46:28,486 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 23:46:28,491 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 23:46:28,492 INFO L85 PathProgramCache]: Analyzing trace with hash -1192454832, now seen corresponding path program 1 times [2024-11-18 23:46:28,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 23:46:28,501 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1128708703] [2024-11-18 23:46:28,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 23:46:28,502 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 23:46:28,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 23:46:29,488 INFO L134 CoverageAnalysis]: Checked inductivity of 6612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6612 trivial. 0 not checked. [2024-11-18 23:46:29,489 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 23:46:29,490 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1128708703] [2024-11-18 23:46:29,491 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1128708703] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 23:46:29,491 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 23:46:29,491 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 23:46:29,493 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1646235980] [2024-11-18 23:46:29,495 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 23:46:29,503 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 23:46:29,504 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 23:46:29,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 23:46:29,533 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 23:46:29,537 INFO L87 Difference]: Start difference. First operand has 208 states, 147 states have (on average 1.5034013605442176) internal successors, (221), 148 states have internal predecessors, (221), 58 states have call successors, (58), 1 states have call predecessors, (58), 1 states have return successors, (58), 58 states have call predecessors, (58), 58 states have call successors, (58) Second operand has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 1 states have call successors, (58), 1 states have call predecessors, (58), 1 states have return successors, (58), 1 states have call predecessors, (58), 1 states have call successors, (58) [2024-11-18 23:46:29,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 23:46:29,837 INFO L93 Difference]: Finished difference Result 511 states and 895 transitions. [2024-11-18 23:46:29,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 23:46:29,842 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 1 states have call successors, (58), 1 states have call predecessors, (58), 1 states have return successors, (58), 1 states have call predecessors, (58), 1 states have call successors, (58) Word has length 367 [2024-11-18 23:46:29,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 23:46:29,858 INFO L225 Difference]: With dead ends: 511 [2024-11-18 23:46:29,860 INFO L226 Difference]: Without dead ends: 306 [2024-11-18 23:46:29,868 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-18 23:46:29,875 INFO L432 NwaCegarLoop]: 297 mSDtfsCounter, 162 mSDsluCounter, 570 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 162 SdHoareTripleChecker+Valid, 867 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-18 23:46:29,876 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [162 Valid, 867 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-18 23:46:29,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 306 states. [2024-11-18 23:46:29,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 306 to 303. [2024-11-18 23:46:29,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 303 states, 240 states have (on average 1.5166666666666666) internal successors, (364), 241 states have internal predecessors, (364), 60 states have call successors, (60), 2 states have call predecessors, (60), 2 states have return successors, (60), 59 states have call predecessors, (60), 60 states have call successors, (60) [2024-11-18 23:46:29,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 303 states to 303 states and 484 transitions. [2024-11-18 23:46:29,976 INFO L78 Accepts]: Start accepts. Automaton has 303 states and 484 transitions. Word has length 367 [2024-11-18 23:46:29,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 23:46:29,979 INFO L471 AbstractCegarLoop]: Abstraction has 303 states and 484 transitions. [2024-11-18 23:46:29,979 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 1 states have call successors, (58), 1 states have call predecessors, (58), 1 states have return successors, (58), 1 states have call predecessors, (58), 1 states have call successors, (58) [2024-11-18 23:46:29,979 INFO L276 IsEmpty]: Start isEmpty. Operand 303 states and 484 transitions. [2024-11-18 23:46:29,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 368 [2024-11-18 23:46:29,992 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 23:46:29,992 INFO L215 NwaCegarLoop]: trace histogram [58, 58, 58, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 23:46:29,992 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-18 23:46:29,993 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 23:46:29,994 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 23:46:29,994 INFO L85 PathProgramCache]: Analyzing trace with hash 1051528466, now seen corresponding path program 1 times [2024-11-18 23:46:29,995 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 23:46:29,995 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [37151689] [2024-11-18 23:46:29,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 23:46:29,995 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 23:46:30,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 23:46:30,285 INFO L134 CoverageAnalysis]: Checked inductivity of 6612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6612 trivial. 0 not checked. [2024-11-18 23:46:30,285 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 23:46:30,286 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [37151689] [2024-11-18 23:46:30,286 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [37151689] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 23:46:30,286 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 23:46:30,289 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 23:46:30,289 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1119743101] [2024-11-18 23:46:30,289 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 23:46:30,291 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 23:46:30,291 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 23:46:30,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 23:46:30,296 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 23:46:30,297 INFO L87 Difference]: Start difference. First operand 303 states and 484 transitions. Second operand has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 1 states have call successors, (58), 1 states have call predecessors, (58), 1 states have return successors, (58), 1 states have call predecessors, (58), 1 states have call successors, (58) [2024-11-18 23:46:30,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 23:46:30,402 INFO L93 Difference]: Finished difference Result 899 states and 1438 transitions. [2024-11-18 23:46:30,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 23:46:30,402 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 1 states have call successors, (58), 1 states have call predecessors, (58), 1 states have return successors, (58), 1 states have call predecessors, (58), 1 states have call successors, (58) Word has length 367 [2024-11-18 23:46:30,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 23:46:30,412 INFO L225 Difference]: With dead ends: 899 [2024-11-18 23:46:30,413 INFO L226 Difference]: Without dead ends: 599 [2024-11-18 23:46:30,417 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 23:46:30,418 INFO L432 NwaCegarLoop]: 505 mSDtfsCounter, 309 mSDsluCounter, 305 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 309 SdHoareTripleChecker+Valid, 810 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 23:46:30,418 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [309 Valid, 810 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 23:46:30,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 599 states. [2024-11-18 23:46:30,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 599 to 597. [2024-11-18 23:46:30,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 597 states, 472 states have (on average 1.5) internal successors, (708), 474 states have internal predecessors, (708), 120 states have call successors, (120), 4 states have call predecessors, (120), 4 states have return successors, (120), 118 states have call predecessors, (120), 120 states have call successors, (120) [2024-11-18 23:46:30,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 597 states to 597 states and 948 transitions. [2024-11-18 23:46:30,507 INFO L78 Accepts]: Start accepts. Automaton has 597 states and 948 transitions. Word has length 367 [2024-11-18 23:46:30,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 23:46:30,509 INFO L471 AbstractCegarLoop]: Abstraction has 597 states and 948 transitions. [2024-11-18 23:46:30,510 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 1 states have call successors, (58), 1 states have call predecessors, (58), 1 states have return successors, (58), 1 states have call predecessors, (58), 1 states have call successors, (58) [2024-11-18 23:46:30,510 INFO L276 IsEmpty]: Start isEmpty. Operand 597 states and 948 transitions. [2024-11-18 23:46:30,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 368 [2024-11-18 23:46:30,518 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 23:46:30,518 INFO L215 NwaCegarLoop]: trace histogram [58, 58, 58, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 23:46:30,518 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-18 23:46:30,519 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 23:46:30,520 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 23:46:30,520 INFO L85 PathProgramCache]: Analyzing trace with hash 56600528, now seen corresponding path program 1 times [2024-11-18 23:46:30,520 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 23:46:30,520 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1873435975] [2024-11-18 23:46:30,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 23:46:30,521 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 23:46:30,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 23:46:30,736 INFO L134 CoverageAnalysis]: Checked inductivity of 6612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6612 trivial. 0 not checked. [2024-11-18 23:46:30,738 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 23:46:30,738 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1873435975] [2024-11-18 23:46:30,738 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1873435975] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 23:46:30,738 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 23:46:30,739 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 23:46:30,739 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1419569100] [2024-11-18 23:46:30,739 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 23:46:30,741 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 23:46:30,741 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 23:46:30,742 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 23:46:30,742 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 23:46:30,742 INFO L87 Difference]: Start difference. First operand 597 states and 948 transitions. Second operand has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 1 states have call successors, (58), 1 states have call predecessors, (58), 1 states have return successors, (58), 1 states have call predecessors, (58), 1 states have call successors, (58) [2024-11-18 23:46:30,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 23:46:30,828 INFO L93 Difference]: Finished difference Result 1675 states and 2652 transitions. [2024-11-18 23:46:30,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 23:46:30,829 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 1 states have call successors, (58), 1 states have call predecessors, (58), 1 states have return successors, (58), 1 states have call predecessors, (58), 1 states have call successors, (58) Word has length 367 [2024-11-18 23:46:30,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 23:46:30,837 INFO L225 Difference]: With dead ends: 1675 [2024-11-18 23:46:30,837 INFO L226 Difference]: Without dead ends: 1081 [2024-11-18 23:46:30,839 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 23:46:30,840 INFO L432 NwaCegarLoop]: 375 mSDtfsCounter, 284 mSDsluCounter, 305 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 284 SdHoareTripleChecker+Valid, 680 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 23:46:30,841 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [284 Valid, 680 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 23:46:30,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1081 states. [2024-11-18 23:46:30,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1081 to 659. [2024-11-18 23:46:30,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 659 states, 534 states have (on average 1.5280898876404494) internal successors, (816), 536 states have internal predecessors, (816), 120 states have call successors, (120), 4 states have call predecessors, (120), 4 states have return successors, (120), 118 states have call predecessors, (120), 120 states have call successors, (120) [2024-11-18 23:46:30,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 659 states to 659 states and 1056 transitions. [2024-11-18 23:46:30,918 INFO L78 Accepts]: Start accepts. Automaton has 659 states and 1056 transitions. Word has length 367 [2024-11-18 23:46:30,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 23:46:30,919 INFO L471 AbstractCegarLoop]: Abstraction has 659 states and 1056 transitions. [2024-11-18 23:46:30,920 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 1 states have call successors, (58), 1 states have call predecessors, (58), 1 states have return successors, (58), 1 states have call predecessors, (58), 1 states have call successors, (58) [2024-11-18 23:46:30,920 INFO L276 IsEmpty]: Start isEmpty. Operand 659 states and 1056 transitions. [2024-11-18 23:46:30,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 368 [2024-11-18 23:46:30,925 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 23:46:30,926 INFO L215 NwaCegarLoop]: trace histogram [58, 58, 58, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 23:46:30,926 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-18 23:46:30,926 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 23:46:30,927 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 23:46:30,927 INFO L85 PathProgramCache]: Analyzing trace with hash -77412978, now seen corresponding path program 1 times [2024-11-18 23:46:30,928 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 23:46:30,928 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [872633760] [2024-11-18 23:46:30,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 23:46:30,929 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 23:46:31,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 23:46:31,729 INFO L134 CoverageAnalysis]: Checked inductivity of 6612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6612 trivial. 0 not checked. [2024-11-18 23:46:31,729 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 23:46:31,729 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [872633760] [2024-11-18 23:46:31,729 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [872633760] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 23:46:31,729 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 23:46:31,730 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 23:46:31,730 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1986250920] [2024-11-18 23:46:31,730 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 23:46:31,732 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 23:46:31,733 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 23:46:31,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 23:46:31,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-18 23:46:31,734 INFO L87 Difference]: Start difference. First operand 659 states and 1056 transitions. Second operand has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 1 states have call successors, (58), 1 states have call predecessors, (58), 1 states have return successors, (58), 1 states have call predecessors, (58), 1 states have call successors, (58) [2024-11-18 23:46:31,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 23:46:31,963 INFO L93 Difference]: Finished difference Result 1838 states and 2906 transitions. [2024-11-18 23:46:31,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 23:46:31,964 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 1 states have call successors, (58), 1 states have call predecessors, (58), 1 states have return successors, (58), 1 states have call predecessors, (58), 1 states have call successors, (58) Word has length 367 [2024-11-18 23:46:31,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 23:46:31,971 INFO L225 Difference]: With dead ends: 1838 [2024-11-18 23:46:31,972 INFO L226 Difference]: Without dead ends: 1182 [2024-11-18 23:46:31,976 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-18 23:46:31,977 INFO L432 NwaCegarLoop]: 403 mSDtfsCounter, 330 mSDsluCounter, 613 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 330 SdHoareTripleChecker+Valid, 1016 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-18 23:46:31,979 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [330 Valid, 1016 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-18 23:46:31,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1182 states. [2024-11-18 23:46:32,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1182 to 922. [2024-11-18 23:46:32,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 922 states, 760 states have (on average 1.5302631578947368) internal successors, (1163), 765 states have internal predecessors, (1163), 154 states have call successors, (154), 7 states have call predecessors, (154), 7 states have return successors, (154), 149 states have call predecessors, (154), 154 states have call successors, (154) [2024-11-18 23:46:32,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 922 states to 922 states and 1471 transitions. [2024-11-18 23:46:32,093 INFO L78 Accepts]: Start accepts. Automaton has 922 states and 1471 transitions. Word has length 367 [2024-11-18 23:46:32,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 23:46:32,094 INFO L471 AbstractCegarLoop]: Abstraction has 922 states and 1471 transitions. [2024-11-18 23:46:32,094 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 1 states have call successors, (58), 1 states have call predecessors, (58), 1 states have return successors, (58), 1 states have call predecessors, (58), 1 states have call successors, (58) [2024-11-18 23:46:32,095 INFO L276 IsEmpty]: Start isEmpty. Operand 922 states and 1471 transitions. [2024-11-18 23:46:32,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 368 [2024-11-18 23:46:32,102 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 23:46:32,102 INFO L215 NwaCegarLoop]: trace histogram [58, 58, 58, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 23:46:32,103 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-18 23:46:32,103 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 23:46:32,104 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 23:46:32,104 INFO L85 PathProgramCache]: Analyzing trace with hash -1882851312, now seen corresponding path program 1 times [2024-11-18 23:46:32,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 23:46:32,104 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1639788899] [2024-11-18 23:46:32,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 23:46:32,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 23:46:32,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 23:46:32,522 INFO L134 CoverageAnalysis]: Checked inductivity of 6612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6612 trivial. 0 not checked. [2024-11-18 23:46:32,523 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 23:46:32,523 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1639788899] [2024-11-18 23:46:32,523 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1639788899] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 23:46:32,523 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 23:46:32,523 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 23:46:32,523 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1118866446] [2024-11-18 23:46:32,523 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 23:46:32,524 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 23:46:32,524 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 23:46:32,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 23:46:32,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 23:46:32,525 INFO L87 Difference]: Start difference. First operand 922 states and 1471 transitions. Second operand has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 1 states have call successors, (58), 1 states have call predecessors, (58), 1 states have return successors, (58), 1 states have call predecessors, (58), 1 states have call successors, (58) [2024-11-18 23:46:32,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 23:46:32,642 INFO L93 Difference]: Finished difference Result 2744 states and 4389 transitions. [2024-11-18 23:46:32,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 23:46:32,643 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 1 states have call successors, (58), 1 states have call predecessors, (58), 1 states have return successors, (58), 1 states have call predecessors, (58), 1 states have call successors, (58) Word has length 367 [2024-11-18 23:46:32,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 23:46:32,654 INFO L225 Difference]: With dead ends: 2744 [2024-11-18 23:46:32,655 INFO L226 Difference]: Without dead ends: 1833 [2024-11-18 23:46:32,658 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 23:46:32,659 INFO L432 NwaCegarLoop]: 370 mSDtfsCounter, 205 mSDsluCounter, 311 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 205 SdHoareTripleChecker+Valid, 681 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 23:46:32,660 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [205 Valid, 681 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 23:46:32,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1833 states. [2024-11-18 23:46:32,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1833 to 1831. [2024-11-18 23:46:32,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1831 states, 1511 states have (on average 1.5215089344804764) internal successors, (2299), 1520 states have internal predecessors, (2299), 306 states have call successors, (306), 13 states have call predecessors, (306), 13 states have return successors, (306), 297 states have call predecessors, (306), 306 states have call successors, (306) [2024-11-18 23:46:32,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1831 states to 1831 states and 2911 transitions. [2024-11-18 23:46:32,789 INFO L78 Accepts]: Start accepts. Automaton has 1831 states and 2911 transitions. Word has length 367 [2024-11-18 23:46:32,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 23:46:32,790 INFO L471 AbstractCegarLoop]: Abstraction has 1831 states and 2911 transitions. [2024-11-18 23:46:32,791 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 1 states have call successors, (58), 1 states have call predecessors, (58), 1 states have return successors, (58), 1 states have call predecessors, (58), 1 states have call successors, (58) [2024-11-18 23:46:32,791 INFO L276 IsEmpty]: Start isEmpty. Operand 1831 states and 2911 transitions. [2024-11-18 23:46:32,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 368 [2024-11-18 23:46:32,798 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 23:46:32,798 INFO L215 NwaCegarLoop]: trace histogram [58, 58, 58, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 23:46:32,798 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-18 23:46:32,799 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 23:46:32,799 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 23:46:32,799 INFO L85 PathProgramCache]: Analyzing trace with hash -2101706030, now seen corresponding path program 1 times [2024-11-18 23:46:32,799 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 23:46:32,800 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2110021937] [2024-11-18 23:46:32,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 23:46:32,800 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 23:46:32,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 23:46:33,878 INFO L134 CoverageAnalysis]: Checked inductivity of 6612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6612 trivial. 0 not checked. [2024-11-18 23:46:33,878 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 23:46:33,878 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2110021937] [2024-11-18 23:46:33,879 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2110021937] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 23:46:33,879 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 23:46:33,879 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 23:46:33,879 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [526755773] [2024-11-18 23:46:33,879 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 23:46:33,881 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 23:46:33,881 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 23:46:33,882 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 23:46:33,882 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-18 23:46:33,882 INFO L87 Difference]: Start difference. First operand 1831 states and 2911 transitions. Second operand has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 1 states have call successors, (58), 1 states have call predecessors, (58), 1 states have return successors, (58), 1 states have call predecessors, (58), 1 states have call successors, (58) [2024-11-18 23:46:34,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 23:46:34,396 INFO L93 Difference]: Finished difference Result 4761 states and 7535 transitions. [2024-11-18 23:46:34,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 23:46:34,397 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 1 states have call successors, (58), 1 states have call predecessors, (58), 1 states have return successors, (58), 1 states have call predecessors, (58), 1 states have call successors, (58) Word has length 367 [2024-11-18 23:46:34,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 23:46:34,413 INFO L225 Difference]: With dead ends: 4761 [2024-11-18 23:46:34,414 INFO L226 Difference]: Without dead ends: 2941 [2024-11-18 23:46:34,421 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-18 23:46:34,422 INFO L432 NwaCegarLoop]: 446 mSDtfsCounter, 562 mSDsluCounter, 724 mSDsCounter, 0 mSdLazyCounter, 152 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 562 SdHoareTripleChecker+Valid, 1170 SdHoareTripleChecker+Invalid, 158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-18 23:46:34,422 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [562 Valid, 1170 Invalid, 158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 152 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-18 23:46:34,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2941 states. [2024-11-18 23:46:34,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2941 to 2027. [2024-11-18 23:46:34,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2027 states, 1707 states have (on average 1.5424721734036322) internal successors, (2633), 1716 states have internal predecessors, (2633), 306 states have call successors, (306), 13 states have call predecessors, (306), 13 states have return successors, (306), 297 states have call predecessors, (306), 306 states have call successors, (306) [2024-11-18 23:46:34,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2027 states to 2027 states and 3245 transitions. [2024-11-18 23:46:34,606 INFO L78 Accepts]: Start accepts. Automaton has 2027 states and 3245 transitions. Word has length 367 [2024-11-18 23:46:34,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 23:46:34,607 INFO L471 AbstractCegarLoop]: Abstraction has 2027 states and 3245 transitions. [2024-11-18 23:46:34,607 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 1 states have call successors, (58), 1 states have call predecessors, (58), 1 states have return successors, (58), 1 states have call predecessors, (58), 1 states have call successors, (58) [2024-11-18 23:46:34,608 INFO L276 IsEmpty]: Start isEmpty. Operand 2027 states and 3245 transitions. [2024-11-18 23:46:34,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 368 [2024-11-18 23:46:34,614 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 23:46:34,615 INFO L215 NwaCegarLoop]: trace histogram [58, 58, 58, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 23:46:34,615 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-18 23:46:34,616 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 23:46:34,616 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 23:46:34,617 INFO L85 PathProgramCache]: Analyzing trace with hash 950463448, now seen corresponding path program 1 times [2024-11-18 23:46:34,617 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 23:46:34,617 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [266299276] [2024-11-18 23:46:34,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 23:46:34,617 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 23:46:34,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 23:46:35,070 INFO L134 CoverageAnalysis]: Checked inductivity of 6612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6612 trivial. 0 not checked. [2024-11-18 23:46:35,070 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 23:46:35,071 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [266299276] [2024-11-18 23:46:35,071 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [266299276] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 23:46:35,071 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 23:46:35,072 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 23:46:35,072 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [830099315] [2024-11-18 23:46:35,072 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 23:46:35,073 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 23:46:35,073 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 23:46:35,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 23:46:35,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 23:46:35,074 INFO L87 Difference]: Start difference. First operand 2027 states and 3245 transitions. Second operand has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 1 states have call successors, (58), 1 states have call predecessors, (58), 1 states have return successors, (58), 1 states have call predecessors, (58), 1 states have call successors, (58) [2024-11-18 23:46:35,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 23:46:35,254 INFO L93 Difference]: Finished difference Result 4135 states and 6636 transitions. [2024-11-18 23:46:35,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 23:46:35,254 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 1 states have call successors, (58), 1 states have call predecessors, (58), 1 states have return successors, (58), 1 states have call predecessors, (58), 1 states have call successors, (58) Word has length 367 [2024-11-18 23:46:35,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 23:46:35,265 INFO L225 Difference]: With dead ends: 4135 [2024-11-18 23:46:35,266 INFO L226 Difference]: Without dead ends: 2119 [2024-11-18 23:46:35,270 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 23:46:35,271 INFO L432 NwaCegarLoop]: 309 mSDtfsCounter, 59 mSDsluCounter, 279 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 588 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 23:46:35,271 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 588 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 23:46:35,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2119 states. [2024-11-18 23:46:35,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2119 to 2027. [2024-11-18 23:46:35,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2027 states, 1707 states have (on average 1.536613942589338) internal successors, (2623), 1716 states have internal predecessors, (2623), 306 states have call successors, (306), 13 states have call predecessors, (306), 13 states have return successors, (306), 297 states have call predecessors, (306), 306 states have call successors, (306) [2024-11-18 23:46:35,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2027 states to 2027 states and 3235 transitions. [2024-11-18 23:46:35,418 INFO L78 Accepts]: Start accepts. Automaton has 2027 states and 3235 transitions. Word has length 367 [2024-11-18 23:46:35,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 23:46:35,418 INFO L471 AbstractCegarLoop]: Abstraction has 2027 states and 3235 transitions. [2024-11-18 23:46:35,419 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 1 states have call successors, (58), 1 states have call predecessors, (58), 1 states have return successors, (58), 1 states have call predecessors, (58), 1 states have call successors, (58) [2024-11-18 23:46:35,419 INFO L276 IsEmpty]: Start isEmpty. Operand 2027 states and 3235 transitions. [2024-11-18 23:46:35,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 368 [2024-11-18 23:46:35,425 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 23:46:35,425 INFO L215 NwaCegarLoop]: trace histogram [58, 58, 58, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 23:46:35,425 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-18 23:46:35,425 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 23:46:35,426 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 23:46:35,426 INFO L85 PathProgramCache]: Analyzing trace with hash 816449942, now seen corresponding path program 1 times [2024-11-18 23:46:35,426 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 23:46:35,426 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2142405272] [2024-11-18 23:46:35,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 23:46:35,427 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 23:46:35,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat