./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-100_file-52.i --full-output --architecture 32bit -------------------------------------------------------------------------------- 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/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-100_file-52.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 18819524c4696c98829402bf6bc4e99abd24bef1d74fc8ec0e3ebc5e4b11aa39 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-803cd42-m [2024-11-22 07:02:32,667 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-22 07:02:32,759 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-22 07:02:32,764 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-22 07:02:32,764 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-22 07:02:32,783 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-22 07:02:32,783 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-22 07:02:32,784 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-22 07:02:32,784 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-22 07:02:32,784 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-22 07:02:32,785 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-22 07:02:32,785 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-22 07:02:32,785 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-22 07:02:32,786 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-22 07:02:32,786 INFO L153 SettingsManager]: * Use SBE=true [2024-11-22 07:02:32,786 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-22 07:02:32,786 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-22 07:02:32,787 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-22 07:02:32,787 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-22 07:02:32,787 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-22 07:02:32,787 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-22 07:02:32,788 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-22 07:02:32,788 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-22 07:02:32,788 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-22 07:02:32,789 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-22 07:02:32,789 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-22 07:02:32,789 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-22 07:02:32,789 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-22 07:02:32,790 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-22 07:02:32,790 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-22 07:02:32,790 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-22 07:02:32,790 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-22 07:02:32,790 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 07:02:32,791 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-22 07:02:32,791 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-22 07:02:32,791 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-22 07:02:32,791 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-22 07:02:32,791 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-22 07:02:32,792 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-22 07:02:32,792 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-22 07:02:32,792 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-22 07:02:32,794 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-22 07:02:32,794 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 18819524c4696c98829402bf6bc4e99abd24bef1d74fc8ec0e3ebc5e4b11aa39 [2024-11-22 07:02:33,014 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-22 07:02:33,039 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-22 07:02:33,043 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-22 07:02:33,044 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-22 07:02:33,044 INFO L274 PluginConnector]: CDTParser initialized [2024-11-22 07:02:33,045 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-100_file-52.i [2024-11-22 07:02:34,371 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-22 07:02:34,551 INFO L384 CDTParser]: Found 1 translation units. [2024-11-22 07:02:34,551 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-100_file-52.i [2024-11-22 07:02:34,569 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6d47c85ba/fea4dfc727a54c8bb9cf0f6d52db1981/FLAGef91f5339 [2024-11-22 07:02:34,937 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6d47c85ba/fea4dfc727a54c8bb9cf0f6d52db1981 [2024-11-22 07:02:34,939 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-22 07:02:34,940 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-22 07:02:34,941 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-22 07:02:34,941 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-22 07:02:34,945 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-22 07:02:34,945 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 07:02:34" (1/1) ... [2024-11-22 07:02:34,946 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6aabe622 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 07:02:34, skipping insertion in model container [2024-11-22 07:02:34,946 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 07:02:34" (1/1) ... [2024-11-22 07:02:34,972 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-22 07:02:35,145 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_fillercode_fillercodesize_ps-cn-100_file-52.i[916,929] [2024-11-22 07:02:35,274 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 07:02:35,284 INFO L200 MainTranslator]: Completed pre-run [2024-11-22 07:02:35,293 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_fillercode_fillercodesize_ps-cn-100_file-52.i[916,929] [2024-11-22 07:02:35,326 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 07:02:35,344 INFO L204 MainTranslator]: Completed translation [2024-11-22 07:02:35,344 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 07:02:35 WrapperNode [2024-11-22 07:02:35,344 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-22 07:02:35,345 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-22 07:02:35,346 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-22 07:02:35,346 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-22 07:02:35,351 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 07:02:35" (1/1) ... [2024-11-22 07:02:35,362 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 07:02:35" (1/1) ... [2024-11-22 07:02:35,392 INFO L138 Inliner]: procedures = 26, calls = 59, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 314 [2024-11-22 07:02:35,392 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-22 07:02:35,393 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-22 07:02:35,393 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-22 07:02:35,393 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-22 07:02:35,404 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 07:02:35" (1/1) ... [2024-11-22 07:02:35,405 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 07:02:35" (1/1) ... [2024-11-22 07:02:35,408 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 07:02:35" (1/1) ... [2024-11-22 07:02:35,426 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]. [2024-11-22 07:02:35,427 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 07:02:35" (1/1) ... [2024-11-22 07:02:35,427 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 07:02:35" (1/1) ... [2024-11-22 07:02:35,435 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 07:02:35" (1/1) ... [2024-11-22 07:02:35,438 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 07:02:35" (1/1) ... [2024-11-22 07:02:35,440 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 07:02:35" (1/1) ... [2024-11-22 07:02:35,442 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 07:02:35" (1/1) ... [2024-11-22 07:02:35,446 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-22 07:02:35,447 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-22 07:02:35,447 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-22 07:02:35,447 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-22 07:02:35,448 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 07:02:35" (1/1) ... [2024-11-22 07:02:35,452 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 07:02:35,469 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 07:02:35,490 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 07:02:35,493 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 07:02:35,530 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-22 07:02:35,530 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-22 07:02:35,531 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-22 07:02:35,531 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-22 07:02:35,531 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-22 07:02:35,532 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-22 07:02:35,615 INFO L238 CfgBuilder]: Building ICFG [2024-11-22 07:02:35,619 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-22 07:02:35,981 INFO L? ?]: Removed 22 outVars from TransFormulas that were not future-live. [2024-11-22 07:02:35,981 INFO L287 CfgBuilder]: Performing block encoding [2024-11-22 07:02:35,998 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-22 07:02:35,998 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-22 07:02:35,999 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 07:02:35 BoogieIcfgContainer [2024-11-22 07:02:35,999 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-22 07:02:36,001 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-22 07:02:36,001 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-22 07:02:36,003 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-22 07:02:36,004 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 07:02:34" (1/3) ... [2024-11-22 07:02:36,005 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7aa7f6db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 07:02:36, skipping insertion in model container [2024-11-22 07:02:36,005 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 07:02:35" (2/3) ... [2024-11-22 07:02:36,005 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7aa7f6db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 07:02:36, skipping insertion in model container [2024-11-22 07:02:36,006 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 07:02:35" (3/3) ... [2024-11-22 07:02:36,007 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodesize_ps-cn-100_file-52.i [2024-11-22 07:02:36,020 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-22 07:02:36,020 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-22 07:02:36,081 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 07:02:36,088 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;@2f1b5f19, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 07:02:36,089 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-22 07:02:36,097 INFO L276 IsEmpty]: Start isEmpty. Operand has 135 states, 86 states have (on average 1.4651162790697674) internal successors, (126), 87 states have internal predecessors, (126), 46 states have call successors, (46), 1 states have call predecessors, (46), 1 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2024-11-22 07:02:36,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 287 [2024-11-22 07:02:36,117 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 07:02:36,118 INFO L215 NwaCegarLoop]: trace histogram [46, 46, 46, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:02:36,118 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 07:02:36,122 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 07:02:36,123 INFO L85 PathProgramCache]: Analyzing trace with hash 1123143720, now seen corresponding path program 1 times [2024-11-22 07:02:36,130 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 07:02:36,130 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2111998259] [2024-11-22 07:02:36,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 07:02:36,131 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 07:02:36,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 07:02:36,546 INFO L134 CoverageAnalysis]: Checked inductivity of 4140 backedges. 0 proven. 90 refuted. 0 times theorem prover too weak. 4050 trivial. 0 not checked. [2024-11-22 07:02:36,549 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 07:02:36,549 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2111998259] [2024-11-22 07:02:36,550 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2111998259] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 07:02:36,550 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1552412263] [2024-11-22 07:02:36,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 07:02:36,550 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 07:02:36,550 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 07:02:36,554 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 07:02:36,555 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 07:02:36,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 07:02:36,716 INFO L255 TraceCheckSpWp]: Trace formula consists of 644 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-22 07:02:36,736 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 07:02:36,774 INFO L134 CoverageAnalysis]: Checked inductivity of 4140 backedges. 90 proven. 0 refuted. 0 times theorem prover too weak. 4050 trivial. 0 not checked. [2024-11-22 07:02:36,774 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 07:02:36,775 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1552412263] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 07:02:36,775 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 07:02:36,775 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-22 07:02:36,777 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1258357418] [2024-11-22 07:02:36,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 07:02:36,782 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-22 07:02:36,782 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 07:02:36,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-22 07:02:36,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-22 07:02:36,802 INFO L87 Difference]: Start difference. First operand has 135 states, 86 states have (on average 1.4651162790697674) internal successors, (126), 87 states have internal predecessors, (126), 46 states have call successors, (46), 1 states have call predecessors, (46), 1 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) Second operand has 2 states, 2 states have (on average 30.5) internal successors, (61), 2 states have internal predecessors, (61), 2 states have call successors, (46), 2 states have call predecessors, (46), 1 states have return successors, (46), 1 states have call predecessors, (46), 2 states have call successors, (46) [2024-11-22 07:02:36,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 07:02:36,833 INFO L93 Difference]: Finished difference Result 259 states and 469 transitions. [2024-11-22 07:02:36,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-22 07:02:36,835 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 30.5) internal successors, (61), 2 states have internal predecessors, (61), 2 states have call successors, (46), 2 states have call predecessors, (46), 1 states have return successors, (46), 1 states have call predecessors, (46), 2 states have call successors, (46) Word has length 286 [2024-11-22 07:02:36,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 07:02:36,846 INFO L225 Difference]: With dead ends: 259 [2024-11-22 07:02:36,846 INFO L226 Difference]: Without dead ends: 127 [2024-11-22 07:02:36,849 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 287 GetRequests, 287 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 07:02:36,852 INFO L432 NwaCegarLoop]: 202 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, 202 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 07:02:36,853 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 202 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 07:02:36,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2024-11-22 07:02:36,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 127. [2024-11-22 07:02:36,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 127 states, 79 states have (on average 1.3924050632911393) internal successors, (110), 79 states have internal predecessors, (110), 46 states have call successors, (46), 1 states have call predecessors, (46), 1 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2024-11-22 07:02:36,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 202 transitions. [2024-11-22 07:02:36,897 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 202 transitions. Word has length 286 [2024-11-22 07:02:36,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 07:02:36,897 INFO L471 AbstractCegarLoop]: Abstraction has 127 states and 202 transitions. [2024-11-22 07:02:36,898 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 30.5) internal successors, (61), 2 states have internal predecessors, (61), 2 states have call successors, (46), 2 states have call predecessors, (46), 1 states have return successors, (46), 1 states have call predecessors, (46), 2 states have call successors, (46) [2024-11-22 07:02:36,898 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 202 transitions. [2024-11-22 07:02:36,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 287 [2024-11-22 07:02:36,902 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 07:02:36,902 INFO L215 NwaCegarLoop]: trace histogram [46, 46, 46, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:02:36,911 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 07:02:37,103 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-22 07:02:37,104 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 07:02:37,104 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 07:02:37,104 INFO L85 PathProgramCache]: Analyzing trace with hash -362434516, now seen corresponding path program 1 times [2024-11-22 07:02:37,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 07:02:37,105 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1584827021] [2024-11-22 07:02:37,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 07:02:37,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 07:02:37,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 07:02:37,534 INFO L134 CoverageAnalysis]: Checked inductivity of 4140 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4140 trivial. 0 not checked. [2024-11-22 07:02:37,535 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 07:02:37,535 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1584827021] [2024-11-22 07:02:37,535 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1584827021] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 07:02:37,535 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 07:02:37,535 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 07:02:37,536 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1487035430] [2024-11-22 07:02:37,536 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 07:02:37,537 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 07:02:37,537 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 07:02:37,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 07:02:37,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 07:02:37,538 INFO L87 Difference]: Start difference. First operand 127 states and 202 transitions. Second operand has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 1 states have call successors, (46), 1 states have call predecessors, (46), 1 states have return successors, (46), 1 states have call predecessors, (46), 1 states have call successors, (46) [2024-11-22 07:02:37,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 07:02:37,618 INFO L93 Difference]: Finished difference Result 326 states and 520 transitions. [2024-11-22 07:02:37,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 07:02:37,619 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 1 states have call successors, (46), 1 states have call predecessors, (46), 1 states have return successors, (46), 1 states have call predecessors, (46), 1 states have call successors, (46) Word has length 286 [2024-11-22 07:02:37,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 07:02:37,622 INFO L225 Difference]: With dead ends: 326 [2024-11-22 07:02:37,623 INFO L226 Difference]: Without dead ends: 202 [2024-11-22 07:02:37,624 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 [2024-11-22 07:02:37,625 INFO L432 NwaCegarLoop]: 247 mSDtfsCounter, 116 mSDsluCounter, 190 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 437 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 07:02:37,625 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [116 Valid, 437 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 07:02:37,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states. [2024-11-22 07:02:37,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 199. [2024-11-22 07:02:37,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 199 states, 132 states have (on average 1.4393939393939394) internal successors, (190), 133 states have internal predecessors, (190), 64 states have call successors, (64), 2 states have call predecessors, (64), 2 states have return successors, (64), 63 states have call predecessors, (64), 64 states have call successors, (64) [2024-11-22 07:02:37,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 318 transitions. [2024-11-22 07:02:37,660 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 318 transitions. Word has length 286 [2024-11-22 07:02:37,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 07:02:37,661 INFO L471 AbstractCegarLoop]: Abstraction has 199 states and 318 transitions. [2024-11-22 07:02:37,663 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 1 states have call successors, (46), 1 states have call predecessors, (46), 1 states have return successors, (46), 1 states have call predecessors, (46), 1 states have call successors, (46) [2024-11-22 07:02:37,663 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 318 transitions. [2024-11-22 07:02:37,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 288 [2024-11-22 07:02:37,670 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 07:02:37,670 INFO L215 NwaCegarLoop]: trace histogram [46, 46, 46, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:02:37,670 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-22 07:02:37,670 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 07:02:37,671 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 07:02:37,671 INFO L85 PathProgramCache]: Analyzing trace with hash 443168504, now seen corresponding path program 1 times [2024-11-22 07:02:37,671 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 07:02:37,671 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [758927889] [2024-11-22 07:02:37,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 07:02:37,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 07:02:37,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 07:02:45,939 INFO L134 CoverageAnalysis]: Checked inductivity of 4140 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4140 trivial. 0 not checked. [2024-11-22 07:02:45,940 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 07:02:45,940 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [758927889] [2024-11-22 07:02:45,940 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [758927889] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 07:02:45,940 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 07:02:45,940 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-22 07:02:45,940 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1486681125] [2024-11-22 07:02:45,941 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 07:02:45,944 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-22 07:02:45,944 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 07:02:45,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-22 07:02:45,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2024-11-22 07:02:45,945 INFO L87 Difference]: Start difference. First operand 199 states and 318 transitions. Second operand has 14 states, 14 states have (on average 4.285714285714286) internal successors, (60), 14 states have internal predecessors, (60), 1 states have call successors, (46), 1 states have call predecessors, (46), 1 states have return successors, (46), 1 states have call predecessors, (46), 1 states have call successors, (46) [2024-11-22 07:02:47,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 07:02:47,212 INFO L93 Difference]: Finished difference Result 718 states and 1126 transitions. [2024-11-22 07:02:47,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 07:02:47,214 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.285714285714286) internal successors, (60), 14 states have internal predecessors, (60), 1 states have call successors, (46), 1 states have call predecessors, (46), 1 states have return successors, (46), 1 states have call predecessors, (46), 1 states have call successors, (46) Word has length 287 [2024-11-22 07:02:47,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 07:02:47,220 INFO L225 Difference]: With dead ends: 718 [2024-11-22 07:02:47,220 INFO L226 Difference]: Without dead ends: 522 [2024-11-22 07:02:47,221 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=79, Invalid=301, Unknown=0, NotChecked=0, Total=380 [2024-11-22 07:02:47,222 INFO L432 NwaCegarLoop]: 181 mSDtfsCounter, 347 mSDsluCounter, 1312 mSDsCounter, 0 mSdLazyCounter, 743 mSolverCounterSat, 174 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 347 SdHoareTripleChecker+Valid, 1493 SdHoareTripleChecker+Invalid, 917 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 174 IncrementalHoareTripleChecker+Valid, 743 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-22 07:02:47,222 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [347 Valid, 1493 Invalid, 917 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [174 Valid, 743 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-22 07:02:47,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 522 states. [2024-11-22 07:02:47,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 522 to 449. [2024-11-22 07:02:47,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 449 states, 302 states have (on average 1.4105960264900663) internal successors, (426), 306 states have internal predecessors, (426), 140 states have call successors, (140), 6 states have call predecessors, (140), 6 states have return successors, (140), 136 states have call predecessors, (140), 140 states have call successors, (140) [2024-11-22 07:02:47,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 449 states to 449 states and 706 transitions. [2024-11-22 07:02:47,279 INFO L78 Accepts]: Start accepts. Automaton has 449 states and 706 transitions. Word has length 287 [2024-11-22 07:02:47,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 07:02:47,282 INFO L471 AbstractCegarLoop]: Abstraction has 449 states and 706 transitions. [2024-11-22 07:02:47,282 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.285714285714286) internal successors, (60), 14 states have internal predecessors, (60), 1 states have call successors, (46), 1 states have call predecessors, (46), 1 states have return successors, (46), 1 states have call predecessors, (46), 1 states have call successors, (46) [2024-11-22 07:02:47,282 INFO L276 IsEmpty]: Start isEmpty. Operand 449 states and 706 transitions. [2024-11-22 07:02:47,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 288 [2024-11-22 07:02:47,286 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 07:02:47,286 INFO L215 NwaCegarLoop]: trace histogram [46, 46, 46, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:02:47,286 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-22 07:02:47,287 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 07:02:47,287 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 07:02:47,288 INFO L85 PathProgramCache]: Analyzing trace with hash 701333942, now seen corresponding path program 1 times [2024-11-22 07:02:47,288 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 07:02:47,288 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1703264983] [2024-11-22 07:02:47,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 07:02:47,288 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 07:02:47,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 07:02:47,712 INFO L134 CoverageAnalysis]: Checked inductivity of 4140 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4140 trivial. 0 not checked. [2024-11-22 07:02:47,712 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 07:02:47,713 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1703264983] [2024-11-22 07:02:47,713 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1703264983] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 07:02:47,713 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 07:02:47,713 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 07:02:47,713 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [384954478] [2024-11-22 07:02:47,713 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 07:02:47,714 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 07:02:47,715 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 07:02:47,716 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 07:02:47,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-22 07:02:47,717 INFO L87 Difference]: Start difference. First operand 449 states and 706 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 1 states have call successors, (46), 1 states have call predecessors, (46), 1 states have return successors, (46), 1 states have call predecessors, (46), 1 states have call successors, (46) [2024-11-22 07:02:47,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 07:02:47,824 INFO L93 Difference]: Finished difference Result 1023 states and 1576 transitions. [2024-11-22 07:02:47,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 07:02:47,824 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 1 states have call successors, (46), 1 states have call predecessors, (46), 1 states have return successors, (46), 1 states have call predecessors, (46), 1 states have call successors, (46) Word has length 287 [2024-11-22 07:02:47,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 07:02:47,831 INFO L225 Difference]: With dead ends: 1023 [2024-11-22 07:02:47,831 INFO L226 Difference]: Without dead ends: 577 [2024-11-22 07:02:47,833 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-22 07:02:47,833 INFO L432 NwaCegarLoop]: 199 mSDtfsCounter, 96 mSDsluCounter, 208 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 407 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 07:02:47,835 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [96 Valid, 407 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 07:02:47,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 577 states. [2024-11-22 07:02:47,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 577 to 441. [2024-11-22 07:02:47,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 441 states, 304 states have (on average 1.4013157894736843) internal successors, (426), 306 states have internal predecessors, (426), 128 states have call successors, (128), 8 states have call predecessors, (128), 8 states have return successors, (128), 126 states have call predecessors, (128), 128 states have call successors, (128) [2024-11-22 07:02:47,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 441 states to 441 states and 682 transitions. [2024-11-22 07:02:47,874 INFO L78 Accepts]: Start accepts. Automaton has 441 states and 682 transitions. Word has length 287 [2024-11-22 07:02:47,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 07:02:47,875 INFO L471 AbstractCegarLoop]: Abstraction has 441 states and 682 transitions. [2024-11-22 07:02:47,875 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 1 states have call successors, (46), 1 states have call predecessors, (46), 1 states have return successors, (46), 1 states have call predecessors, (46), 1 states have call successors, (46) [2024-11-22 07:02:47,875 INFO L276 IsEmpty]: Start isEmpty. Operand 441 states and 682 transitions. [2024-11-22 07:02:47,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 288 [2024-11-22 07:02:47,877 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 07:02:47,877 INFO L215 NwaCegarLoop]: trace histogram [46, 46, 46, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:02:47,877 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-22 07:02:47,878 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 07:02:47,878 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 07:02:47,878 INFO L85 PathProgramCache]: Analyzing trace with hash 1757730808, now seen corresponding path program 1 times [2024-11-22 07:02:47,878 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 07:02:47,880 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1789830905] [2024-11-22 07:02:47,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 07:02:47,880 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 07:02:47,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 07:02:55,094 INFO L134 CoverageAnalysis]: Checked inductivity of 4140 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4140 trivial. 0 not checked. [2024-11-22 07:02:55,094 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 07:02:55,095 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1789830905] [2024-11-22 07:02:55,095 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1789830905] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 07:02:55,095 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 07:02:55,095 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-11-22 07:02:55,095 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1244930299] [2024-11-22 07:02:55,095 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 07:02:55,095 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-22 07:02:55,095 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 07:02:55,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-22 07:02:55,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=196, Unknown=0, NotChecked=0, Total=240 [2024-11-22 07:02:55,097 INFO L87 Difference]: Start difference. First operand 441 states and 682 transitions. Second operand has 16 states, 16 states have (on average 3.75) internal successors, (60), 16 states have internal predecessors, (60), 2 states have call successors, (46), 1 states have call predecessors, (46), 1 states have return successors, (46), 2 states have call predecessors, (46), 2 states have call successors, (46) [2024-11-22 07:02:58,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 07:02:58,534 INFO L93 Difference]: Finished difference Result 578 states and 863 transitions. [2024-11-22 07:02:58,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-11-22 07:02:58,535 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 3.75) internal successors, (60), 16 states have internal predecessors, (60), 2 states have call successors, (46), 1 states have call predecessors, (46), 1 states have return successors, (46), 2 states have call predecessors, (46), 2 states have call successors, (46) Word has length 287 [2024-11-22 07:02:58,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 07:02:58,539 INFO L225 Difference]: With dead ends: 578 [2024-11-22 07:02:58,539 INFO L226 Difference]: Without dead ends: 576 [2024-11-22 07:02:58,540 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 240 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=419, Invalid=1063, Unknown=0, NotChecked=0, Total=1482 [2024-11-22 07:02:58,541 INFO L432 NwaCegarLoop]: 176 mSDtfsCounter, 361 mSDsluCounter, 1409 mSDsCounter, 0 mSdLazyCounter, 1017 mSolverCounterSat, 198 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 361 SdHoareTripleChecker+Valid, 1585 SdHoareTripleChecker+Invalid, 1215 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 198 IncrementalHoareTripleChecker+Valid, 1017 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-22 07:02:58,541 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [361 Valid, 1585 Invalid, 1215 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [198 Valid, 1017 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-22 07:02:58,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 576 states. [2024-11-22 07:02:58,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 576 to 449. [2024-11-22 07:02:58,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 449 states, 312 states have (on average 1.391025641025641) internal successors, (434), 314 states have internal predecessors, (434), 128 states have call successors, (128), 8 states have call predecessors, (128), 8 states have return successors, (128), 126 states have call predecessors, (128), 128 states have call successors, (128) [2024-11-22 07:02:58,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 449 states to 449 states and 690 transitions. [2024-11-22 07:02:58,569 INFO L78 Accepts]: Start accepts. Automaton has 449 states and 690 transitions. Word has length 287 [2024-11-22 07:02:58,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 07:02:58,570 INFO L471 AbstractCegarLoop]: Abstraction has 449 states and 690 transitions. [2024-11-22 07:02:58,570 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 3.75) internal successors, (60), 16 states have internal predecessors, (60), 2 states have call successors, (46), 1 states have call predecessors, (46), 1 states have return successors, (46), 2 states have call predecessors, (46), 2 states have call successors, (46) [2024-11-22 07:02:58,570 INFO L276 IsEmpty]: Start isEmpty. Operand 449 states and 690 transitions. [2024-11-22 07:02:58,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 288 [2024-11-22 07:02:58,574 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 07:02:58,574 INFO L215 NwaCegarLoop]: trace histogram [46, 46, 46, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:02:58,575 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-22 07:02:58,575 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 07:02:58,576 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 07:02:58,576 INFO L85 PathProgramCache]: Analyzing trace with hash -836695174, now seen corresponding path program 1 times [2024-11-22 07:02:58,576 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 07:02:58,577 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1262862807] [2024-11-22 07:02:58,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 07:02:58,577 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 07:02:58,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 07:02:58,690 INFO L134 CoverageAnalysis]: Checked inductivity of 4140 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4140 trivial. 0 not checked. [2024-11-22 07:02:58,691 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 07:02:58,691 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1262862807] [2024-11-22 07:02:58,693 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1262862807] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 07:02:58,693 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 07:02:58,693 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 07:02:58,693 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1897550137] [2024-11-22 07:02:58,693 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 07:02:58,694 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 07:02:58,694 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 07:02:58,695 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 07:02:58,695 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 07:02:58,696 INFO L87 Difference]: Start difference. First operand 449 states and 690 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 1 states have call successors, (46), 1 states have call predecessors, (46), 1 states have return successors, (46), 1 states have call predecessors, (46), 1 states have call successors, (46) [2024-11-22 07:02:58,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 07:02:58,883 INFO L93 Difference]: Finished difference Result 669 states and 1031 transitions. [2024-11-22 07:02:58,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 07:02:58,884 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 1 states have call successors, (46), 1 states have call predecessors, (46), 1 states have return successors, (46), 1 states have call predecessors, (46), 1 states have call successors, (46) Word has length 287 [2024-11-22 07:02:58,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 07:02:58,887 INFO L225 Difference]: With dead ends: 669 [2024-11-22 07:02:58,887 INFO L226 Difference]: Without dead ends: 449 [2024-11-22 07:02:58,888 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-22 07:02:58,889 INFO L432 NwaCegarLoop]: 193 mSDtfsCounter, 175 mSDsluCounter, 98 mSDsCounter, 0 mSdLazyCounter, 110 mSolverCounterSat, 140 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 175 SdHoareTripleChecker+Valid, 291 SdHoareTripleChecker+Invalid, 250 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 140 IncrementalHoareTripleChecker+Valid, 110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-22 07:02:58,890 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [175 Valid, 291 Invalid, 250 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [140 Valid, 110 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-22 07:02:58,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 449 states. [2024-11-22 07:02:58,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 449 to 449. [2024-11-22 07:02:58,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 449 states, 312 states have (on average 1.3782051282051282) internal successors, (430), 314 states have internal predecessors, (430), 128 states have call successors, (128), 8 states have call predecessors, (128), 8 states have return successors, (128), 126 states have call predecessors, (128), 128 states have call successors, (128) [2024-11-22 07:02:58,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 449 states to 449 states and 686 transitions. [2024-11-22 07:02:58,921 INFO L78 Accepts]: Start accepts. Automaton has 449 states and 686 transitions. Word has length 287 [2024-11-22 07:02:58,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 07:02:58,923 INFO L471 AbstractCegarLoop]: Abstraction has 449 states and 686 transitions. [2024-11-22 07:02:58,923 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 1 states have call successors, (46), 1 states have call predecessors, (46), 1 states have return successors, (46), 1 states have call predecessors, (46), 1 states have call successors, (46) [2024-11-22 07:02:58,923 INFO L276 IsEmpty]: Start isEmpty. Operand 449 states and 686 transitions. [2024-11-22 07:02:58,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 289 [2024-11-22 07:02:58,926 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 07:02:58,927 INFO L215 NwaCegarLoop]: trace histogram [46, 46, 46, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:02:58,927 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-22 07:02:58,927 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 07:02:58,927 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 07:02:58,927 INFO L85 PathProgramCache]: Analyzing trace with hash 1925097222, now seen corresponding path program 1 times [2024-11-22 07:02:58,927 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 07:02:58,927 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [794991126] [2024-11-22 07:02:58,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 07:02:58,928 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 07:02:59,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 07:03:01,080 INFO L134 CoverageAnalysis]: Checked inductivity of 4140 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4140 trivial. 0 not checked. [2024-11-22 07:03:01,080 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 07:03:01,080 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [794991126] [2024-11-22 07:03:01,080 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [794991126] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 07:03:01,080 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 07:03:01,081 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-22 07:03:01,081 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [791687070] [2024-11-22 07:03:01,081 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 07:03:01,081 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-22 07:03:01,081 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 07:03:01,081 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-22 07:03:01,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2024-11-22 07:03:01,082 INFO L87 Difference]: Start difference. First operand 449 states and 686 transitions. Second operand has 11 states, 11 states have (on average 5.545454545454546) internal successors, (61), 11 states have internal predecessors, (61), 4 states have call successors, (46), 1 states have call predecessors, (46), 1 states have return successors, (46), 3 states have call predecessors, (46), 4 states have call successors, (46) [2024-11-22 07:03:01,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 07:03:01,689 INFO L93 Difference]: Finished difference Result 1109 states and 1692 transitions. [2024-11-22 07:03:01,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 07:03:01,690 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.545454545454546) internal successors, (61), 11 states have internal predecessors, (61), 4 states have call successors, (46), 1 states have call predecessors, (46), 1 states have return successors, (46), 3 states have call predecessors, (46), 4 states have call successors, (46) Word has length 288 [2024-11-22 07:03:01,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 07:03:01,694 INFO L225 Difference]: With dead ends: 1109 [2024-11-22 07:03:01,694 INFO L226 Difference]: Without dead ends: 663 [2024-11-22 07:03:01,696 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=58, Invalid=152, Unknown=0, NotChecked=0, Total=210 [2024-11-22 07:03:01,696 INFO L432 NwaCegarLoop]: 186 mSDtfsCounter, 372 mSDsluCounter, 900 mSDsCounter, 0 mSdLazyCounter, 320 mSolverCounterSat, 321 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 372 SdHoareTripleChecker+Valid, 1086 SdHoareTripleChecker+Invalid, 641 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 321 IncrementalHoareTripleChecker+Valid, 320 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-22 07:03:01,696 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [372 Valid, 1086 Invalid, 641 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [321 Valid, 320 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-22 07:03:01,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 663 states. [2024-11-22 07:03:01,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 663 to 583. [2024-11-22 07:03:01,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 583 states, 398 states have (on average 1.3869346733668342) internal successors, (552), 400 states have internal predecessors, (552), 174 states have call successors, (174), 10 states have call predecessors, (174), 10 states have return successors, (174), 172 states have call predecessors, (174), 174 states have call successors, (174) [2024-11-22 07:03:01,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 583 states to 583 states and 900 transitions. [2024-11-22 07:03:01,735 INFO L78 Accepts]: Start accepts. Automaton has 583 states and 900 transitions. Word has length 288 [2024-11-22 07:03:01,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 07:03:01,736 INFO L471 AbstractCegarLoop]: Abstraction has 583 states and 900 transitions. [2024-11-22 07:03:01,737 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.545454545454546) internal successors, (61), 11 states have internal predecessors, (61), 4 states have call successors, (46), 1 states have call predecessors, (46), 1 states have return successors, (46), 3 states have call predecessors, (46), 4 states have call successors, (46) [2024-11-22 07:03:01,737 INFO L276 IsEmpty]: Start isEmpty. Operand 583 states and 900 transitions. [2024-11-22 07:03:01,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 289 [2024-11-22 07:03:01,739 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 07:03:01,739 INFO L215 NwaCegarLoop]: trace histogram [46, 46, 46, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:03:01,739 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-22 07:03:01,740 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 07:03:01,740 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 07:03:01,740 INFO L85 PathProgramCache]: Analyzing trace with hash 313661700, now seen corresponding path program 1 times [2024-11-22 07:03:01,740 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 07:03:01,740 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [635392548] [2024-11-22 07:03:01,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 07:03:01,740 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 07:03:01,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 07:03:06,958 INFO L134 CoverageAnalysis]: Checked inductivity of 4140 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4140 trivial. 0 not checked. [2024-11-22 07:03:06,958 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 07:03:06,959 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [635392548] [2024-11-22 07:03:06,959 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [635392548] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 07:03:06,959 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 07:03:06,959 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-22 07:03:06,959 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2070976313] [2024-11-22 07:03:06,959 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 07:03:06,959 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-22 07:03:06,959 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 07:03:06,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-22 07:03:06,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2024-11-22 07:03:06,960 INFO L87 Difference]: Start difference. First operand 583 states and 900 transitions. Second operand has 14 states, 14 states have (on average 4.357142857142857) internal successors, (61), 14 states have internal predecessors, (61), 1 states have call successors, (46), 1 states have call predecessors, (46), 1 states have return successors, (46), 1 states have call predecessors, (46), 1 states have call successors, (46) [2024-11-22 07:03:09,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 07:03:09,262 INFO L93 Difference]: Finished difference Result 1127 states and 1709 transitions. [2024-11-22 07:03:09,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-11-22 07:03:09,263 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.357142857142857) internal successors, (61), 14 states have internal predecessors, (61), 1 states have call successors, (46), 1 states have call predecessors, (46), 1 states have return successors, (46), 1 states have call predecessors, (46), 1 states have call successors, (46) Word has length 288 [2024-11-22 07:03:09,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 07:03:09,268 INFO L225 Difference]: With dead ends: 1127 [2024-11-22 07:03:09,268 INFO L226 Difference]: Without dead ends: 681 [2024-11-22 07:03:09,270 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 355 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=407, Invalid=1315, Unknown=0, NotChecked=0, Total=1722 [2024-11-22 07:03:09,272 INFO L432 NwaCegarLoop]: 179 mSDtfsCounter, 375 mSDsluCounter, 1140 mSDsCounter, 0 mSdLazyCounter, 913 mSolverCounterSat, 153 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 375 SdHoareTripleChecker+Valid, 1319 SdHoareTripleChecker+Invalid, 1066 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 153 IncrementalHoareTripleChecker+Valid, 913 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-22 07:03:09,272 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [375 Valid, 1319 Invalid, 1066 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [153 Valid, 913 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-22 07:03:09,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 681 states. [2024-11-22 07:03:09,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 681 to 617. [2024-11-22 07:03:09,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 617 states, 432 states have (on average 1.3796296296296295) internal successors, (596), 434 states have internal predecessors, (596), 174 states have call successors, (174), 10 states have call predecessors, (174), 10 states have return successors, (174), 172 states have call predecessors, (174), 174 states have call successors, (174) [2024-11-22 07:03:09,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 617 states to 617 states and 944 transitions. [2024-11-22 07:03:09,313 INFO L78 Accepts]: Start accepts. Automaton has 617 states and 944 transitions. Word has length 288 [2024-11-22 07:03:09,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 07:03:09,314 INFO L471 AbstractCegarLoop]: Abstraction has 617 states and 944 transitions. [2024-11-22 07:03:09,314 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.357142857142857) internal successors, (61), 14 states have internal predecessors, (61), 1 states have call successors, (46), 1 states have call predecessors, (46), 1 states have return successors, (46), 1 states have call predecessors, (46), 1 states have call successors, (46) [2024-11-22 07:03:09,314 INFO L276 IsEmpty]: Start isEmpty. Operand 617 states and 944 transitions. [2024-11-22 07:03:09,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 289 [2024-11-22 07:03:09,315 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 07:03:09,315 INFO L215 NwaCegarLoop]: trace histogram [46, 46, 46, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:03:09,315 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-22 07:03:09,316 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 07:03:09,316 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 07:03:09,316 INFO L85 PathProgramCache]: Analyzing trace with hash 2110777594, now seen corresponding path program 1 times [2024-11-22 07:03:09,316 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 07:03:09,316 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [397275513] [2024-11-22 07:03:09,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 07:03:09,317 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 07:03:09,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 07:03:15,196 INFO L134 CoverageAnalysis]: Checked inductivity of 4140 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4140 trivial. 0 not checked. [2024-11-22 07:03:15,196 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 07:03:15,196 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [397275513] [2024-11-22 07:03:15,196 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [397275513] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 07:03:15,196 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 07:03:15,196 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2024-11-22 07:03:15,197 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1688290711] [2024-11-22 07:03:15,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 07:03:15,197 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-22 07:03:15,197 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 07:03:15,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-22 07:03:15,199 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=255, Unknown=0, NotChecked=0, Total=306 [2024-11-22 07:03:15,199 INFO L87 Difference]: Start difference. First operand 617 states and 944 transitions. Second operand has 18 states, 18 states have (on average 3.388888888888889) internal successors, (61), 18 states have internal predecessors, (61), 4 states have call successors, (46), 1 states have call predecessors, (46), 1 states have return successors, (46), 3 states have call predecessors, (46), 4 states have call successors, (46) [2024-11-22 07:03:17,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 07:03:17,747 INFO L93 Difference]: Finished difference Result 987 states and 1481 transitions. [2024-11-22 07:03:17,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-22 07:03:17,748 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 3.388888888888889) internal successors, (61), 18 states have internal predecessors, (61), 4 states have call successors, (46), 1 states have call predecessors, (46), 1 states have return successors, (46), 3 states have call predecessors, (46), 4 states have call successors, (46) Word has length 288 [2024-11-22 07:03:17,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 07:03:17,752 INFO L225 Difference]: With dead ends: 987 [2024-11-22 07:03:17,752 INFO L226 Difference]: Without dead ends: 747 [2024-11-22 07:03:17,753 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 173 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=287, Invalid=903, Unknown=0, NotChecked=0, Total=1190 [2024-11-22 07:03:17,754 INFO L432 NwaCegarLoop]: 182 mSDtfsCounter, 290 mSDsluCounter, 1374 mSDsCounter, 0 mSdLazyCounter, 917 mSolverCounterSat, 199 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 290 SdHoareTripleChecker+Valid, 1556 SdHoareTripleChecker+Invalid, 1116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 199 IncrementalHoareTripleChecker+Valid, 917 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-22 07:03:17,754 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [290 Valid, 1556 Invalid, 1116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [199 Valid, 917 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-22 07:03:17,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 747 states. [2024-11-22 07:03:17,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 747 to 633. [2024-11-22 07:03:17,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 633 states, 448 states have (on average 1.3839285714285714) internal successors, (620), 450 states have internal predecessors, (620), 174 states have call successors, (174), 10 states have call predecessors, (174), 10 states have return successors, (174), 172 states have call predecessors, (174), 174 states have call successors, (174) [2024-11-22 07:03:17,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 633 states to 633 states and 968 transitions. [2024-11-22 07:03:17,793 INFO L78 Accepts]: Start accepts. Automaton has 633 states and 968 transitions. Word has length 288 [2024-11-22 07:03:17,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 07:03:17,793 INFO L471 AbstractCegarLoop]: Abstraction has 633 states and 968 transitions. [2024-11-22 07:03:17,794 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 3.388888888888889) internal successors, (61), 18 states have internal predecessors, (61), 4 states have call successors, (46), 1 states have call predecessors, (46), 1 states have return successors, (46), 3 states have call predecessors, (46), 4 states have call successors, (46) [2024-11-22 07:03:17,794 INFO L276 IsEmpty]: Start isEmpty. Operand 633 states and 968 transitions. [2024-11-22 07:03:17,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 573 [2024-11-22 07:03:17,797 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 07:03:17,797 INFO L215 NwaCegarLoop]: trace histogram [92, 92, 92, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-22 07:03:17,801 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-22 07:03:17,801 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 07:03:17,802 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 07:03:17,802 INFO L85 PathProgramCache]: Analyzing trace with hash 204367374, now seen corresponding path program 1 times [2024-11-22 07:03:17,802 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 07:03:17,802 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1954625877] [2024-11-22 07:03:17,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 07:03:17,802 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 07:03:17,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 07:03:20,629 INFO L134 CoverageAnalysis]: Checked inductivity of 16842 backedges. 94 proven. 4 refuted. 0 times theorem prover too weak. 16744 trivial. 0 not checked. [2024-11-22 07:03:20,629 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 07:03:20,629 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1954625877] [2024-11-22 07:03:20,630 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1954625877] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 07:03:20,630 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [202876143] [2024-11-22 07:03:20,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 07:03:20,630 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 07:03:20,630 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 07:03:20,632 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 07:03:20,633 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 07:03:20,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 07:03:20,806 INFO L255 TraceCheckSpWp]: Trace formula consists of 1171 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-22 07:03:20,815 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 07:03:20,864 INFO L134 CoverageAnalysis]: Checked inductivity of 16842 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 16831 trivial. 0 not checked. [2024-11-22 07:03:20,866 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 07:03:20,866 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [202876143] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 07:03:20,867 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 07:03:20,867 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 9 [2024-11-22 07:03:20,867 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1493036622] [2024-11-22 07:03:20,867 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 07:03:20,867 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 07:03:20,868 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 07:03:20,868 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 07:03:20,868 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-22 07:03:20,868 INFO L87 Difference]: Start difference. First operand 633 states and 968 transitions. Second operand has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 1 states have call successors, (46), 1 states have call predecessors, (46), 1 states have return successors, (46), 1 states have call predecessors, (46), 1 states have call successors, (46) [2024-11-22 07:03:20,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 07:03:20,910 INFO L93 Difference]: Finished difference Result 1077 states and 1647 transitions. [2024-11-22 07:03:20,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 07:03:20,911 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 1 states have call successors, (46), 1 states have call predecessors, (46), 1 states have return successors, (46), 1 states have call predecessors, (46), 1 states have call successors, (46) Word has length 572 [2024-11-22 07:03:20,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 07:03:20,914 INFO L225 Difference]: With dead ends: 1077 [2024-11-22 07:03:20,915 INFO L226 Difference]: Without dead ends: 597 [2024-11-22 07:03:20,918 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 589 GetRequests, 582 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-22 07:03:20,918 INFO L432 NwaCegarLoop]: 197 mSDtfsCounter, 0 mSDsluCounter, 192 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 389 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 07:03:20,919 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 389 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 07:03:20,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 597 states. [2024-11-22 07:03:20,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 597 to 597. [2024-11-22 07:03:20,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 597 states, 412 states have (on average 1.3786407766990292) internal successors, (568), 414 states have internal predecessors, (568), 174 states have call successors, (174), 10 states have call predecessors, (174), 10 states have return successors, (174), 172 states have call predecessors, (174), 174 states have call successors, (174) [2024-11-22 07:03:20,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 597 states to 597 states and 916 transitions. [2024-11-22 07:03:20,953 INFO L78 Accepts]: Start accepts. Automaton has 597 states and 916 transitions. Word has length 572 [2024-11-22 07:03:20,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 07:03:20,954 INFO L471 AbstractCegarLoop]: Abstraction has 597 states and 916 transitions. [2024-11-22 07:03:20,954 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 1 states have call successors, (46), 1 states have call predecessors, (46), 1 states have return successors, (46), 1 states have call predecessors, (46), 1 states have call successors, (46) [2024-11-22 07:03:20,954 INFO L276 IsEmpty]: Start isEmpty. Operand 597 states and 916 transitions. [2024-11-22 07:03:20,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 573 [2024-11-22 07:03:20,958 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 07:03:20,958 INFO L215 NwaCegarLoop]: trace histogram [92, 92, 92, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-22 07:03:20,966 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 07:03:21,158 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,SelfDestructingSolverStorable9 [2024-11-22 07:03:21,159 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 07:03:21,160 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 07:03:21,160 INFO L85 PathProgramCache]: Analyzing trace with hash 390047746, now seen corresponding path program 1 times [2024-11-22 07:03:21,160 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 07:03:21,160 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1618267087] [2024-11-22 07:03:21,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 07:03:21,160 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 07:03:21,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 07:03:27,497 INFO L134 CoverageAnalysis]: Checked inductivity of 16843 backedges. 97 proven. 2 refuted. 0 times theorem prover too weak. 16744 trivial. 0 not checked. [2024-11-22 07:03:27,497 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 07:03:27,497 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1618267087] [2024-11-22 07:03:27,497 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1618267087] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 07:03:27,498 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [150379947] [2024-11-22 07:03:27,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 07:03:27,498 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 07:03:27,498 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 07:03:27,499 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 07:03:27,500 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 07:03:27,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 07:03:27,705 INFO L255 TraceCheckSpWp]: Trace formula consists of 1173 conjuncts, 47 conjuncts are in the unsatisfiable core [2024-11-22 07:03:27,721 INFO L278 TraceCheckSpWp]: Computing forward predicates...