./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-cn_file-36.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 61a67961 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-cn_file-36.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 2e3d524f819c0bc1287e1839ff836746879f5ba2074defa7e5e3ec44f7e326d0 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.fs.cvc5-61a6796-m [2024-10-14 09:47:21,374 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-14 09:47:21,439 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-14 09:47:21,444 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-14 09:47:21,444 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-14 09:47:21,471 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-14 09:47:21,471 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-14 09:47:21,471 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-14 09:47:21,472 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-14 09:47:21,472 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-14 09:47:21,482 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-14 09:47:21,483 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-14 09:47:21,484 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-14 09:47:21,484 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-14 09:47:21,484 INFO L153 SettingsManager]: * Use SBE=true [2024-10-14 09:47:21,484 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-14 09:47:21,485 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-14 09:47:21,485 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-14 09:47:21,485 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-14 09:47:21,486 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-14 09:47:21,486 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-14 09:47:21,493 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-14 09:47:21,494 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-14 09:47:21,494 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-14 09:47:21,494 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-14 09:47:21,494 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-14 09:47:21,495 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-14 09:47:21,495 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-14 09:47:21,495 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-14 09:47:21,495 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-14 09:47:21,495 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-14 09:47:21,496 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-14 09:47:21,496 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 09:47:21,496 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-14 09:47:21,496 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-14 09:47:21,496 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-14 09:47:21,497 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-14 09:47:21,497 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-14 09:47:21,497 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-14 09:47:21,497 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-14 09:47:21,497 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-14 09:47:21,498 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-14 09:47:21,498 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2e3d524f819c0bc1287e1839ff836746879f5ba2074defa7e5e3ec44f7e326d0 [2024-10-14 09:47:21,682 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-14 09:47:21,711 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-14 09:47:21,719 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-14 09:47:21,719 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-14 09:47:21,720 INFO L274 PluginConnector]: CDTParser initialized [2024-10-14 09:47:21,720 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-cn_file-36.i [2024-10-14 09:47:23,296 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-14 09:47:23,595 INFO L384 CDTParser]: Found 1 translation units. [2024-10-14 09:47:23,596 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-cn_file-36.i [2024-10-14 09:47:23,619 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1ce4ddf4a/50be823da2b74f62967b44c6f7d27391/FLAGbd6b43edb [2024-10-14 09:47:23,633 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1ce4ddf4a/50be823da2b74f62967b44c6f7d27391 [2024-10-14 09:47:23,636 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-14 09:47:23,637 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-14 09:47:23,638 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-14 09:47:23,638 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-14 09:47:23,643 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-14 09:47:23,644 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 09:47:23" (1/1) ... [2024-10-14 09:47:23,645 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@19199302 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:47:23, skipping insertion in model container [2024-10-14 09:47:23,646 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 09:47:23" (1/1) ... [2024-10-14 09:47:23,685 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-14 09:47:23,822 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-cn_file-36.i[919,932] [2024-10-14 09:47:23,926 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 09:47:23,951 INFO L200 MainTranslator]: Completed pre-run [2024-10-14 09:47:23,973 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-cn_file-36.i[919,932] [2024-10-14 09:47:24,032 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 09:47:24,062 INFO L204 MainTranslator]: Completed translation [2024-10-14 09:47:24,063 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:47:24 WrapperNode [2024-10-14 09:47:24,063 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-14 09:47:24,065 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-14 09:47:24,066 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-14 09:47:24,066 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-14 09:47:24,074 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:47:24" (1/1) ... [2024-10-14 09:47:24,087 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:47:24" (1/1) ... [2024-10-14 09:47:24,134 INFO L138 Inliner]: procedures = 26, calls = 59, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 282 [2024-10-14 09:47:24,135 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-14 09:47:24,136 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-14 09:47:24,136 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-14 09:47:24,136 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-14 09:47:24,147 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:47:24" (1/1) ... [2024-10-14 09:47:24,147 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:47:24" (1/1) ... [2024-10-14 09:47:24,151 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:47:24" (1/1) ... [2024-10-14 09:47:24,170 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]. [2024-10-14 09:47:24,171 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:47:24" (1/1) ... [2024-10-14 09:47:24,171 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:47:24" (1/1) ... [2024-10-14 09:47:24,197 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:47:24" (1/1) ... [2024-10-14 09:47:24,204 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:47:24" (1/1) ... [2024-10-14 09:47:24,210 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:47:24" (1/1) ... [2024-10-14 09:47:24,217 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:47:24" (1/1) ... [2024-10-14 09:47:24,228 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-14 09:47:24,229 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-14 09:47:24,229 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-14 09:47:24,229 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-14 09:47:24,230 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:47:24" (1/1) ... [2024-10-14 09:47:24,236 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 09:47:24,246 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 09:47:24,265 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-14 09:47:24,269 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-14 09:47:24,311 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-14 09:47:24,311 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-10-14 09:47:24,312 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-10-14 09:47:24,312 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-14 09:47:24,312 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-14 09:47:24,313 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-14 09:47:24,409 INFO L238 CfgBuilder]: Building ICFG [2024-10-14 09:47:24,411 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-14 09:47:24,870 INFO L? ?]: Removed 10 outVars from TransFormulas that were not future-live. [2024-10-14 09:47:24,870 INFO L287 CfgBuilder]: Performing block encoding [2024-10-14 09:47:24,914 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-14 09:47:24,914 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-14 09:47:24,915 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 09:47:24 BoogieIcfgContainer [2024-10-14 09:47:24,915 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-14 09:47:24,917 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-14 09:47:24,917 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-14 09:47:24,920 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-14 09:47:24,920 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 09:47:23" (1/3) ... [2024-10-14 09:47:24,921 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53e0f4df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 09:47:24, skipping insertion in model container [2024-10-14 09:47:24,921 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:47:24" (2/3) ... [2024-10-14 09:47:24,921 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53e0f4df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 09:47:24, skipping insertion in model container [2024-10-14 09:47:24,922 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 09:47:24" (3/3) ... [2024-10-14 09:47:24,923 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-pr-cn_file-36.i [2024-10-14 09:47:24,939 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-14 09:47:24,940 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-14 09:47:25,007 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-14 09:47:25,012 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;@4dd916be, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-14 09:47:25,012 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-14 09:47:25,018 INFO L276 IsEmpty]: Start isEmpty. Operand has 119 states, 70 states have (on average 1.4142857142857144) internal successors, (99), 71 states have internal predecessors, (99), 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) [2024-10-14 09:47:25,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 285 [2024-10-14 09:47:25,035 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 09:47:25,036 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] [2024-10-14 09:47:25,037 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 09:47:25,041 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 09:47:25,041 INFO L85 PathProgramCache]: Analyzing trace with hash 2013299576, now seen corresponding path program 1 times [2024-10-14 09:47:25,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 09:47:25,049 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [981354862] [2024-10-14 09:47:25,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 09:47:25,050 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 09:47:25,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:47:25,316 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 09:47:25,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:47:25,322 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-14 09:47:25,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:47:25,325 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-14 09:47:25,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:47:25,331 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-14 09:47:25,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:47:25,338 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-14 09:47:25,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:47:25,346 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-10-14 09:47:25,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:47:25,351 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-14 09:47:25,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:47:25,355 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-10-14 09:47:25,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:47:25,359 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-10-14 09:47:25,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:47:25,362 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-10-14 09:47:25,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:47:25,366 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-14 09:47:25,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:47:25,369 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-10-14 09:47:25,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:47:25,372 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-10-14 09:47:25,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:47:25,375 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-10-14 09:47:25,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:47:25,378 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-10-14 09:47:25,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:47:25,385 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-10-14 09:47:25,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:47:25,392 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-10-14 09:47:25,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:47:25,398 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-14 09:47:25,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:47:25,404 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-14 09:47:25,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:47:25,406 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-10-14 09:47:25,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:47:25,408 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-10-14 09:47:25,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:47:25,411 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-10-14 09:47:25,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:47:25,413 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-10-14 09:47:25,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:47:25,415 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-10-14 09:47:25,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:47:25,418 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-10-14 09:47:25,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:47:25,419 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-10-14 09:47:25,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:47:25,422 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-10-14 09:47:25,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:47:25,424 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2024-10-14 09:47:25,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:47:25,426 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2024-10-14 09:47:25,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:47:25,428 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2024-10-14 09:47:25,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:47:25,430 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2024-10-14 09:47:25,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:47:25,432 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2024-10-14 09:47:25,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:47:25,434 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2024-10-14 09:47:25,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:47:25,436 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2024-10-14 09:47:25,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:47:25,438 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2024-10-14 09:47:25,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:47:25,444 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2024-10-14 09:47:25,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:47:25,448 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2024-10-14 09:47:25,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:47:25,450 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2024-10-14 09:47:25,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:47:25,452 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2024-10-14 09:47:25,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:47:25,458 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2024-10-14 09:47:25,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:47:25,460 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2024-10-14 09:47:25,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:47:25,464 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2024-10-14 09:47:25,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:47:25,467 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2024-10-14 09:47:25,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:47:25,470 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2024-10-14 09:47:25,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:47:25,473 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2024-10-14 09:47:25,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:47:25,475 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2024-10-14 09:47:25,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:47:25,480 INFO L134 CoverageAnalysis]: Checked inductivity of 4140 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4140 trivial. 0 not checked. [2024-10-14 09:47:25,480 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 09:47:25,481 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [981354862] [2024-10-14 09:47:25,481 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [981354862] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 09:47:25,481 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 09:47:25,481 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 09:47:25,483 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [266983148] [2024-10-14 09:47:25,483 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 09:47:25,487 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-14 09:47:25,487 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 09:47:25,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-14 09:47:25,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-14 09:47:25,514 INFO L87 Difference]: Start difference. First operand has 119 states, 70 states have (on average 1.4142857142857144) internal successors, (99), 71 states have internal predecessors, (99), 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 28.5) internal successors, (57), 2 states have internal predecessors, (57), 2 states have call successors, (46), 1 states have call predecessors, (46), 1 states have return successors, (46), 1 states have call predecessors, (46), 2 states have call successors, (46) [2024-10-14 09:47:25,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 09:47:25,554 INFO L93 Difference]: Finished difference Result 235 states and 426 transitions. [2024-10-14 09:47:25,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-14 09:47:25,556 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 28.5) internal successors, (57), 2 states have internal predecessors, (57), 2 states have call successors, (46), 1 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 284 [2024-10-14 09:47:25,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 09:47:25,563 INFO L225 Difference]: With dead ends: 235 [2024-10-14 09:47:25,565 INFO L226 Difference]: Without dead ends: 117 [2024-10-14 09:47:25,569 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 140 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-14 09:47:25,572 INFO L432 NwaCegarLoop]: 182 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 182 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 09:47:25,572 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 182 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 09:47:25,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2024-10-14 09:47:25,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 117. [2024-10-14 09:47:25,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117 states, 69 states have (on average 1.3478260869565217) internal successors, (93), 69 states have internal predecessors, (93), 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) [2024-10-14 09:47:25,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 185 transitions. [2024-10-14 09:47:25,660 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 185 transitions. Word has length 284 [2024-10-14 09:47:25,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 09:47:25,660 INFO L471 AbstractCegarLoop]: Abstraction has 117 states and 185 transitions. [2024-10-14 09:47:25,661 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 28.5) internal successors, (57), 2 states have internal predecessors, (57), 2 states have call successors, (46), 1 states have call predecessors, (46), 1 states have return successors, (46), 1 states have call predecessors, (46), 2 states have call successors, (46) [2024-10-14 09:47:25,664 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 185 transitions. [2024-10-14 09:47:25,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 285 [2024-10-14 09:47:25,670 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 09:47:25,670 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] [2024-10-14 09:47:25,670 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-14 09:47:25,671 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 09:47:25,671 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 09:47:25,671 INFO L85 PathProgramCache]: Analyzing trace with hash -144872752, now seen corresponding path program 1 times [2024-10-14 09:47:25,671 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 09:47:25,671 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [776844827] [2024-10-14 09:47:25,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 09:47:25,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 09:47:25,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:47:25,911 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 09:47:25,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:47:25,915 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-14 09:47:25,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:47:25,918 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-14 09:47:25,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:47:25,922 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-14 09:47:25,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:47:25,927 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-14 09:47:25,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:47:25,931 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-10-14 09:47:25,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:47:25,936 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-14 09:47:25,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:47:25,938 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-10-14 09:47:25,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:47:25,942 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-10-14 09:47:25,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:47:25,948 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-10-14 09:47:25,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:47:25,950 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-14 09:47:25,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:47:25,955 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-10-14 09:47:25,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:47:25,957 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-10-14 09:47:25,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:47:25,961 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-10-14 09:47:25,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:47:25,968 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-10-14 09:47:25,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:47:25,972 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-10-14 09:47:25,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:47:25,983 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-10-14 09:47:25,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:47:25,985 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-14 09:47:25,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:47:25,992 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-14 09:47:25,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:47:25,994 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-10-14 09:47:25,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:47:25,996 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-10-14 09:47:25,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:47:25,998 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-10-14 09:47:26,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:47:26,002 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-10-14 09:47:26,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:47:26,004 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-10-14 09:47:26,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:47:26,006 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-10-14 09:47:26,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:47:26,011 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-10-14 09:47:26,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:47:26,013 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-10-14 09:47:26,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:47:26,018 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2024-10-14 09:47:26,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:47:26,022 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2024-10-14 09:47:26,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:47:26,024 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2024-10-14 09:47:26,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:47:26,030 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2024-10-14 09:47:26,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:47:26,035 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2024-10-14 09:47:26,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:47:26,039 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2024-10-14 09:47:26,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:47:26,041 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2024-10-14 09:47:26,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:47:26,044 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2024-10-14 09:47:26,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:47:26,047 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2024-10-14 09:47:26,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:47:26,050 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2024-10-14 09:47:26,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:47:26,054 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2024-10-14 09:47:26,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:47:26,060 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2024-10-14 09:47:26,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:47:26,066 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2024-10-14 09:47:26,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:47:26,073 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2024-10-14 09:47:26,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:47:26,077 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2024-10-14 09:47:26,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:47:26,080 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2024-10-14 09:47:26,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:47:26,083 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2024-10-14 09:47:26,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:47:26,086 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2024-10-14 09:47:26,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:47:26,089 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2024-10-14 09:47:26,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:47:26,093 INFO L134 CoverageAnalysis]: Checked inductivity of 4140 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4140 trivial. 0 not checked. [2024-10-14 09:47:26,093 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 09:47:26,093 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [776844827] [2024-10-14 09:47:26,094 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [776844827] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 09:47:26,094 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 09:47:26,094 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 09:47:26,094 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [497144218] [2024-10-14 09:47:26,095 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 09:47:26,097 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 09:47:26,099 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 09:47:26,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 09:47:26,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 09:47:26,100 INFO L87 Difference]: Start difference. First operand 117 states and 185 transitions. Second operand has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 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) [2024-10-14 09:47:26,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 09:47:26,166 INFO L93 Difference]: Finished difference Result 268 states and 425 transitions. [2024-10-14 09:47:26,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 09:47:26,167 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 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 284 [2024-10-14 09:47:26,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 09:47:26,176 INFO L225 Difference]: With dead ends: 268 [2024-10-14 09:47:26,176 INFO L226 Difference]: Without dead ends: 152 [2024-10-14 09:47:26,177 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 09:47:26,178 INFO L432 NwaCegarLoop]: 177 mSDtfsCounter, 51 mSDsluCounter, 171 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 348 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 09:47:26,178 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 348 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 09:47:26,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2024-10-14 09:47:26,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 138. [2024-10-14 09:47:26,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 138 states, 90 states have (on average 1.4) internal successors, (126), 90 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) [2024-10-14 09:47:26,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 218 transitions. [2024-10-14 09:47:26,199 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 218 transitions. Word has length 284 [2024-10-14 09:47:26,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 09:47:26,200 INFO L471 AbstractCegarLoop]: Abstraction has 138 states and 218 transitions. [2024-10-14 09:47:26,200 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 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) [2024-10-14 09:47:26,200 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 218 transitions. [2024-10-14 09:47:26,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 285 [2024-10-14 09:47:26,203 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 09:47:26,203 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] [2024-10-14 09:47:26,203 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-14 09:47:26,204 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 09:47:26,204 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 09:47:26,204 INFO L85 PathProgramCache]: Analyzing trace with hash 277829074, now seen corresponding path program 1 times [2024-10-14 09:47:26,204 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 09:47:26,204 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [325902673] [2024-10-14 09:47:26,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 09:47:26,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 09:47:26,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:47:26,676 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 09:47:26,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:47:26,680 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-14 09:47:26,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:47:26,683 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-14 09:47:26,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:47:26,687 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-14 09:47:26,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:47:26,694 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-14 09:47:26,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:47:26,697 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-10-14 09:47:26,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:47:26,704 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-14 09:47:26,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:47:26,707 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-10-14 09:47:26,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:47:26,713 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-10-14 09:47:26,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:47:26,716 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-10-14 09:47:26,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:47:26,721 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-14 09:47:26,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:47:26,725 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-10-14 09:47:26,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:47:26,730 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-10-14 09:47:26,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:47:26,734 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-10-14 09:47:26,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:47:26,737 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-10-14 09:47:26,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:47:26,740 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-10-14 09:47:26,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:47:26,743 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-10-14 09:47:26,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:47:26,746 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-14 09:47:26,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:47:26,749 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-14 09:47:26,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:47:26,753 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-10-14 09:47:26,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:47:26,756 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-10-14 09:47:26,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:47:26,759 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-10-14 09:47:26,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:47:26,763 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-10-14 09:47:26,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:47:26,765 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-10-14 09:47:26,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:47:26,787 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-10-14 09:47:26,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:47:26,791 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-10-14 09:47:26,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:47:26,796 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-10-14 09:47:26,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:47:26,799 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2024-10-14 09:47:26,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:47:26,803 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2024-10-14 09:47:26,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:47:26,806 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2024-10-14 09:47:26,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:47:26,809 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2024-10-14 09:47:26,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:47:26,814 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2024-10-14 09:47:26,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:47:26,819 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2024-10-14 09:47:26,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:47:26,824 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2024-10-14 09:47:26,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:47:26,829 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2024-10-14 09:47:26,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:47:26,833 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2024-10-14 09:47:26,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:47:26,837 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2024-10-14 09:47:26,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:47:26,841 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2024-10-14 09:47:26,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:47:26,845 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2024-10-14 09:47:26,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:47:26,849 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2024-10-14 09:47:26,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:47:26,852 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2024-10-14 09:47:26,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:47:26,855 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2024-10-14 09:47:26,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:47:26,857 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2024-10-14 09:47:26,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:47:26,861 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2024-10-14 09:47:26,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:47:26,865 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2024-10-14 09:47:26,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:47:26,868 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2024-10-14 09:47:26,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:47:26,872 INFO L134 CoverageAnalysis]: Checked inductivity of 4140 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4140 trivial. 0 not checked. [2024-10-14 09:47:26,872 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 09:47:26,872 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [325902673] [2024-10-14 09:47:26,872 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [325902673] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 09:47:26,872 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 09:47:26,873 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-14 09:47:26,873 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [781991557] [2024-10-14 09:47:26,873 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 09:47:26,877 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 09:47:26,877 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 09:47:26,878 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 09:47:26,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-10-14 09:47:26,881 INFO L87 Difference]: Start difference. First operand 138 states and 218 transitions. Second operand has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 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) [2024-10-14 09:47:27,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 09:47:27,448 INFO L93 Difference]: Finished difference Result 471 states and 741 transitions. [2024-10-14 09:47:27,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 09:47:27,449 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 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 284 [2024-10-14 09:47:27,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 09:47:27,453 INFO L225 Difference]: With dead ends: 471 [2024-10-14 09:47:27,453 INFO L226 Difference]: Without dead ends: 334 [2024-10-14 09:47:27,454 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-10-14 09:47:27,455 INFO L432 NwaCegarLoop]: 261 mSDtfsCounter, 246 mSDsluCounter, 490 mSDsCounter, 0 mSdLazyCounter, 279 mSolverCounterSat, 146 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 246 SdHoareTripleChecker+Valid, 751 SdHoareTripleChecker+Invalid, 425 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 146 IncrementalHoareTripleChecker+Valid, 279 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-14 09:47:27,457 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [246 Valid, 751 Invalid, 425 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [146 Valid, 279 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-14 09:47:27,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 334 states. [2024-10-14 09:47:27,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 334 to 318. [2024-10-14 09:47:27,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 318 states, 197 states have (on average 1.3451776649746192) internal successors, (265), 198 states have internal predecessors, (265), 116 states have call successors, (116), 4 states have call predecessors, (116), 4 states have return successors, (116), 115 states have call predecessors, (116), 116 states have call successors, (116) [2024-10-14 09:47:27,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 318 states to 318 states and 497 transitions. [2024-10-14 09:47:27,506 INFO L78 Accepts]: Start accepts. Automaton has 318 states and 497 transitions. Word has length 284 [2024-10-14 09:47:27,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 09:47:27,507 INFO L471 AbstractCegarLoop]: Abstraction has 318 states and 497 transitions. [2024-10-14 09:47:27,507 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 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) [2024-10-14 09:47:27,507 INFO L276 IsEmpty]: Start isEmpty. Operand 318 states and 497 transitions. [2024-10-14 09:47:27,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 286 [2024-10-14 09:47:27,510 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 09:47:27,511 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] [2024-10-14 09:47:27,511 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-14 09:47:27,511 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 09:47:27,511 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 09:47:27,512 INFO L85 PathProgramCache]: Analyzing trace with hash 1632284653, now seen corresponding path program 1 times [2024-10-14 09:47:27,512 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 09:47:27,512 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2026803802] [2024-10-14 09:47:27,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 09:47:27,512 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 09:47:27,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:47:28,287 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 09:47:28,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:47:28,290 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-14 09:47:28,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:47:28,292 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-14 09:47:28,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:47:28,293 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-14 09:47:28,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:47:28,294 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-14 09:47:28,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:47:28,295 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-10-14 09:47:28,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:47:28,297 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-14 09:47:28,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:47:28,298 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-10-14 09:47:28,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:47:28,299 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-10-14 09:47:28,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:47:28,300 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-10-14 09:47:28,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:47:28,302 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-14 09:47:28,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:47:28,303 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-10-14 09:47:28,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:47:28,304 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-10-14 09:47:28,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:47:28,306 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-10-14 09:47:28,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:47:28,308 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-10-14 09:47:28,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:47:28,309 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-10-14 09:47:28,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:47:28,310 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-10-14 09:47:28,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:47:28,311 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-14 09:47:28,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:47:28,313 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-14 09:47:28,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:47:28,314 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-10-14 09:47:28,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:47:28,315 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-10-14 09:47:28,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:47:28,316 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-10-14 09:47:28,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:47:28,318 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-10-14 09:47:28,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:47:28,319 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-10-14 09:47:28,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:47:28,320 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-10-14 09:47:28,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:47:28,321 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-10-14 09:47:28,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:47:28,322 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-10-14 09:47:28,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:47:28,324 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2024-10-14 09:47:28,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:47:28,325 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2024-10-14 09:47:28,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:47:28,326 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2024-10-14 09:47:28,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:47:28,327 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2024-10-14 09:47:28,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:47:28,329 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2024-10-14 09:47:28,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:47:28,330 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2024-10-14 09:47:28,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:47:28,331 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2024-10-14 09:47:28,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:47:28,332 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2024-10-14 09:47:28,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:47:28,334 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2024-10-14 09:47:28,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:47:28,335 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2024-10-14 09:47:28,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:47:28,336 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2024-10-14 09:47:28,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:47:28,337 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2024-10-14 09:47:28,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:47:28,339 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2024-10-14 09:47:28,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:47:28,340 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2024-10-14 09:47:28,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:47:28,341 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2024-10-14 09:47:28,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:47:28,357 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2024-10-14 09:47:28,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:47:28,370 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2024-10-14 09:47:28,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:47:28,374 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2024-10-14 09:47:28,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:47:28,377 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2024-10-14 09:47:28,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:47:28,382 INFO L134 CoverageAnalysis]: Checked inductivity of 4140 backedges. 246 proven. 18 refuted. 0 times theorem prover too weak. 3876 trivial. 0 not checked. [2024-10-14 09:47:28,382 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 09:47:28,383 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2026803802] [2024-10-14 09:47:28,383 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2026803802] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 09:47:28,383 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1206655480] [2024-10-14 09:47:28,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 09:47:28,383 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 09:47:28,383 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 09:47:28,385 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 09:47:28,386 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-14 09:47:28,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:47:28,535 INFO L255 TraceCheckSpWp]: Trace formula consists of 622 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-10-14 09:47:28,553 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 09:47:29,020 INFO L134 CoverageAnalysis]: Checked inductivity of 4140 backedges. 788 proven. 144 refuted. 0 times theorem prover too weak. 3208 trivial. 0 not checked. [2024-10-14 09:47:29,020 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 09:47:29,568 INFO L134 CoverageAnalysis]: Checked inductivity of 4140 backedges. 369 proven. 27 refuted. 0 times theorem prover too weak. 3744 trivial. 0 not checked. [2024-10-14 09:47:29,569 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1206655480] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 09:47:29,569 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-14 09:47:29,569 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 12, 12] total 22 [2024-10-14 09:47:29,569 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1098531390] [2024-10-14 09:47:29,572 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-14 09:47:29,573 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-10-14 09:47:29,573 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 09:47:29,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-10-14 09:47:29,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=145, Invalid=317, Unknown=0, NotChecked=0, Total=462 [2024-10-14 09:47:29,574 INFO L87 Difference]: Start difference. First operand 318 states and 497 transitions. Second operand has 22 states, 21 states have (on average 4.809523809523809) internal successors, (101), 20 states have internal predecessors, (101), 6 states have call successors, (51), 4 states have call predecessors, (51), 8 states have return successors, (54), 6 states have call predecessors, (54), 6 states have call successors, (54) [2024-10-14 09:47:30,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 09:47:30,303 INFO L93 Difference]: Finished difference Result 543 states and 825 transitions. [2024-10-14 09:47:30,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-10-14 09:47:30,304 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 4.809523809523809) internal successors, (101), 20 states have internal predecessors, (101), 6 states have call successors, (51), 4 states have call predecessors, (51), 8 states have return successors, (54), 6 states have call predecessors, (54), 6 states have call successors, (54) Word has length 285 [2024-10-14 09:47:30,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 09:47:30,307 INFO L225 Difference]: With dead ends: 543 [2024-10-14 09:47:30,307 INFO L226 Difference]: Without dead ends: 356 [2024-10-14 09:47:30,308 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 675 GetRequests, 645 SyntacticMatches, 2 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 256 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=276, Invalid=594, Unknown=0, NotChecked=0, Total=870 [2024-10-14 09:47:30,309 INFO L432 NwaCegarLoop]: 126 mSDtfsCounter, 321 mSDsluCounter, 554 mSDsCounter, 0 mSdLazyCounter, 826 mSolverCounterSat, 260 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 360 SdHoareTripleChecker+Valid, 680 SdHoareTripleChecker+Invalid, 1086 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 260 IncrementalHoareTripleChecker+Valid, 826 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-14 09:47:30,309 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [360 Valid, 680 Invalid, 1086 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [260 Valid, 826 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-14 09:47:30,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 356 states. [2024-10-14 09:47:30,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 356 to 344. [2024-10-14 09:47:30,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 344 states, 217 states have (on average 1.3133640552995391) internal successors, (285), 218 states have internal predecessors, (285), 116 states have call successors, (116), 10 states have call predecessors, (116), 10 states have return successors, (116), 115 states have call predecessors, (116), 116 states have call successors, (116) [2024-10-14 09:47:30,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 344 states to 344 states and 517 transitions. [2024-10-14 09:47:30,351 INFO L78 Accepts]: Start accepts. Automaton has 344 states and 517 transitions. Word has length 285 [2024-10-14 09:47:30,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 09:47:30,354 INFO L471 AbstractCegarLoop]: Abstraction has 344 states and 517 transitions. [2024-10-14 09:47:30,354 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 4.809523809523809) internal successors, (101), 20 states have internal predecessors, (101), 6 states have call successors, (51), 4 states have call predecessors, (51), 8 states have return successors, (54), 6 states have call predecessors, (54), 6 states have call successors, (54) [2024-10-14 09:47:30,354 INFO L276 IsEmpty]: Start isEmpty. Operand 344 states and 517 transitions. [2024-10-14 09:47:30,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 287 [2024-10-14 09:47:30,357 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 09:47:30,357 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] [2024-10-14 09:47:30,372 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-10-14 09:47:30,561 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 09:47:30,562 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 09:47:30,563 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 09:47:30,563 INFO L85 PathProgramCache]: Analyzing trace with hash -329252117, now seen corresponding path program 1 times [2024-10-14 09:47:30,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 09:47:30,566 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1020401830] [2024-10-14 09:47:30,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 09:47:30,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 09:47:30,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-14 09:47:30,674 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [861704607] [2024-10-14 09:47:30,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 09:47:30,675 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 09:47:30,675 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 09:47:30,676 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 09:47:30,677 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process