./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-pe-co_file-50.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a046e57d 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-pe-co_file-50.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 1d54cda1e1849769fc331dfdba9fcfb2e9b4fcf52bd0d43d6f8a699ed6598582 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-mul-div-a046e57-m [2024-10-13 01:59:43,232 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-13 01:59:43,312 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-13 01:59:43,322 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-13 01:59:43,326 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-13 01:59:43,357 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-13 01:59:43,358 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-13 01:59:43,358 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-13 01:59:43,359 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-13 01:59:43,359 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-13 01:59:43,360 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-13 01:59:43,360 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-13 01:59:43,361 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-13 01:59:43,363 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-13 01:59:43,364 INFO L153 SettingsManager]: * Use SBE=true [2024-10-13 01:59:43,364 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-13 01:59:43,364 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-13 01:59:43,365 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-13 01:59:43,365 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-13 01:59:43,365 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-13 01:59:43,365 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-13 01:59:43,369 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-13 01:59:43,370 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-13 01:59:43,370 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-13 01:59:43,373 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-13 01:59:43,374 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-13 01:59:43,374 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-13 01:59:43,374 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-13 01:59:43,375 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-13 01:59:43,375 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-13 01:59:43,375 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-13 01:59:43,375 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-13 01:59:43,376 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-13 01:59:43,376 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-13 01:59:43,376 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-13 01:59:43,376 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-13 01:59:43,377 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-13 01:59:43,377 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-13 01:59:43,377 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-13 01:59:43,377 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-13 01:59:43,379 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-13 01:59:43,379 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-13 01:59:43,379 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1d54cda1e1849769fc331dfdba9fcfb2e9b4fcf52bd0d43d6f8a699ed6598582 [2024-10-13 01:59:43,655 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-13 01:59:43,680 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-13 01:59:43,685 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-13 01:59:43,686 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-13 01:59:43,687 INFO L274 PluginConnector]: CDTParser initialized [2024-10-13 01:59:43,688 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-co_file-50.i [2024-10-13 01:59:45,167 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-13 01:59:45,391 INFO L384 CDTParser]: Found 1 translation units. [2024-10-13 01:59:45,392 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-co_file-50.i [2024-10-13 01:59:45,402 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c707a5ca3/3d0e364daadc434f98767dd70f9ac8ac/FLAGd1bd4313d [2024-10-13 01:59:45,743 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c707a5ca3/3d0e364daadc434f98767dd70f9ac8ac [2024-10-13 01:59:45,745 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-13 01:59:45,746 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-13 01:59:45,747 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-13 01:59:45,747 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-13 01:59:45,752 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-13 01:59:45,752 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 01:59:45" (1/1) ... [2024-10-13 01:59:45,753 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3bcb2abf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:59:45, skipping insertion in model container [2024-10-13 01:59:45,753 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 01:59:45" (1/1) ... [2024-10-13 01:59:45,786 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-13 01:59:45,949 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-pe-co_file-50.i[919,932] [2024-10-13 01:59:46,030 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 01:59:46,045 INFO L200 MainTranslator]: Completed pre-run [2024-10-13 01:59:46,057 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-pe-co_file-50.i[919,932] [2024-10-13 01:59:46,113 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 01:59:46,137 INFO L204 MainTranslator]: Completed translation [2024-10-13 01:59:46,137 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:59:46 WrapperNode [2024-10-13 01:59:46,137 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-13 01:59:46,139 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-13 01:59:46,140 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-13 01:59:46,140 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-13 01:59:46,147 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:59:46" (1/1) ... [2024-10-13 01:59:46,160 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:59:46" (1/1) ... [2024-10-13 01:59:46,199 INFO L138 Inliner]: procedures = 26, calls = 48, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 244 [2024-10-13 01:59:46,199 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-13 01:59:46,200 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-13 01:59:46,200 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-13 01:59:46,201 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-13 01:59:46,211 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:59:46" (1/1) ... [2024-10-13 01:59:46,211 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:59:46" (1/1) ... [2024-10-13 01:59:46,215 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:59:46" (1/1) ... [2024-10-13 01:59:46,252 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]. [2024-10-13 01:59:46,252 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:59:46" (1/1) ... [2024-10-13 01:59:46,253 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:59:46" (1/1) ... [2024-10-13 01:59:46,274 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:59:46" (1/1) ... [2024-10-13 01:59:46,282 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:59:46" (1/1) ... [2024-10-13 01:59:46,293 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:59:46" (1/1) ... [2024-10-13 01:59:46,296 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:59:46" (1/1) ... [2024-10-13 01:59:46,309 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-13 01:59:46,310 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-13 01:59:46,311 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-13 01:59:46,311 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-13 01:59:46,312 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:59:46" (1/1) ... [2024-10-13 01:59:46,318 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-13 01:59:46,332 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 01:59:46,350 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) [2024-10-13 01:59:46,353 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 [2024-10-13 01:59:46,402 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-13 01:59:46,402 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-10-13 01:59:46,403 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-10-13 01:59:46,403 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-13 01:59:46,403 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-13 01:59:46,404 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-13 01:59:46,519 INFO L238 CfgBuilder]: Building ICFG [2024-10-13 01:59:46,521 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-13 01:59:47,022 INFO L? ?]: Removed 18 outVars from TransFormulas that were not future-live. [2024-10-13 01:59:47,022 INFO L287 CfgBuilder]: Performing block encoding [2024-10-13 01:59:47,057 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-13 01:59:47,058 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-13 01:59:47,058 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 01:59:47 BoogieIcfgContainer [2024-10-13 01:59:47,059 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-13 01:59:47,062 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-13 01:59:47,062 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-13 01:59:47,066 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-13 01:59:47,066 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 01:59:45" (1/3) ... [2024-10-13 01:59:47,067 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@674b4afe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 01:59:47, skipping insertion in model container [2024-10-13 01:59:47,067 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:59:46" (2/3) ... [2024-10-13 01:59:47,068 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@674b4afe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 01:59:47, skipping insertion in model container [2024-10-13 01:59:47,068 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 01:59:47" (3/3) ... [2024-10-13 01:59:47,070 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-pe-co_file-50.i [2024-10-13 01:59:47,087 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-13 01:59:47,087 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-13 01:59:47,159 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-13 01:59:47,165 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;@429a692d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-13 01:59:47,166 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-13 01:59:47,170 INFO L276 IsEmpty]: Start isEmpty. Operand has 102 states, 64 states have (on average 1.421875) internal successors, (91), 65 states have internal predecessors, (91), 35 states have call successors, (35), 1 states have call predecessors, (35), 1 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) [2024-10-13 01:59:47,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2024-10-13 01:59:47,186 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 01:59:47,187 INFO L215 NwaCegarLoop]: trace histogram [35, 35, 35, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 01:59:47,188 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 01:59:47,193 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 01:59:47,194 INFO L85 PathProgramCache]: Analyzing trace with hash 1950397987, now seen corresponding path program 1 times [2024-10-13 01:59:47,202 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 01:59:47,203 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [758952033] [2024-10-13 01:59:47,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 01:59:47,204 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 01:59:47,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:59:47,813 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 01:59:47,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:59:47,826 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-13 01:59:47,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:59:47,834 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-13 01:59:47,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:59:47,843 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-13 01:59:47,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:59:47,855 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-13 01:59:47,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:59:47,863 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-10-13 01:59:47,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:59:47,868 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-13 01:59:47,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:59:47,874 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-10-13 01:59:47,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:59:47,878 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-10-13 01:59:47,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:59:47,882 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-13 01:59:47,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:59:47,888 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-10-13 01:59:47,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:59:47,895 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-10-13 01:59:47,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:59:47,899 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-10-13 01:59:47,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:59:47,907 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-13 01:59:47,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:59:47,915 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-13 01:59:47,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:59:47,921 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-10-13 01:59:47,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:59:47,928 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-10-13 01:59:47,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:59:47,938 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-10-13 01:59:47,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:59:47,946 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-10-13 01:59:47,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:59:47,950 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-13 01:59:47,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:59:47,955 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-10-13 01:59:47,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:59:47,959 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-10-13 01:59:47,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:59:47,964 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2024-10-13 01:59:47,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:59:47,970 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2024-10-13 01:59:47,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:59:47,978 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-10-13 01:59:47,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:59:47,982 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-10-13 01:59:47,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:59:47,988 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-10-13 01:59:47,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:59:47,993 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2024-10-13 01:59:47,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:59:48,000 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2024-10-13 01:59:48,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:59:48,009 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2024-10-13 01:59:48,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:59:48,016 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2024-10-13 01:59:48,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:59:48,023 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2024-10-13 01:59:48,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:59:48,027 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2024-10-13 01:59:48,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:59:48,030 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2024-10-13 01:59:48,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:59:48,033 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2024-10-13 01:59:48,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:59:48,039 INFO L134 CoverageAnalysis]: Checked inductivity of 2380 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2380 trivial. 0 not checked. [2024-10-13 01:59:48,039 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 01:59:48,039 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [758952033] [2024-10-13 01:59:48,040 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [758952033] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 01:59:48,040 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 01:59:48,040 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-13 01:59:48,042 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1352855305] [2024-10-13 01:59:48,043 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 01:59:48,049 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 01:59:48,050 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 01:59:48,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 01:59:48,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 01:59:48,073 INFO L87 Difference]: Start difference. First operand has 102 states, 64 states have (on average 1.421875) internal successors, (91), 65 states have internal predecessors, (91), 35 states have call successors, (35), 1 states have call predecessors, (35), 1 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) Second operand has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 1 states have call successors, (35), 1 states have call predecessors, (35), 1 states have return successors, (35), 1 states have call predecessors, (35), 1 states have call successors, (35) [2024-10-13 01:59:48,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 01:59:48,194 INFO L93 Difference]: Finished difference Result 297 states and 545 transitions. [2024-10-13 01:59:48,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 01:59:48,197 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 1 states have call successors, (35), 1 states have call predecessors, (35), 1 states have return successors, (35), 1 states have call predecessors, (35), 1 states have call successors, (35) Word has length 222 [2024-10-13 01:59:48,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 01:59:48,209 INFO L225 Difference]: With dead ends: 297 [2024-10-13 01:59:48,210 INFO L226 Difference]: Without dead ends: 196 [2024-10-13 01:59:48,215 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 01:59:48,218 INFO L432 NwaCegarLoop]: 148 mSDtfsCounter, 141 mSDsluCounter, 144 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 292 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-13 01:59:48,219 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [141 Valid, 292 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-13 01:59:48,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196 states. [2024-10-13 01:59:48,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 109. [2024-10-13 01:59:48,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 72 states have (on average 1.3611111111111112) internal successors, (98), 72 states have internal predecessors, (98), 35 states have call successors, (35), 1 states have call predecessors, (35), 1 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) [2024-10-13 01:59:48,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 168 transitions. [2024-10-13 01:59:48,290 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 168 transitions. Word has length 222 [2024-10-13 01:59:48,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 01:59:48,295 INFO L471 AbstractCegarLoop]: Abstraction has 109 states and 168 transitions. [2024-10-13 01:59:48,296 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 1 states have call successors, (35), 1 states have call predecessors, (35), 1 states have return successors, (35), 1 states have call predecessors, (35), 1 states have call successors, (35) [2024-10-13 01:59:48,296 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 168 transitions. [2024-10-13 01:59:48,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2024-10-13 01:59:48,303 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 01:59:48,303 INFO L215 NwaCegarLoop]: trace histogram [35, 35, 35, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 01:59:48,303 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-13 01:59:48,304 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 01:59:48,306 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 01:59:48,307 INFO L85 PathProgramCache]: Analyzing trace with hash 1363591973, now seen corresponding path program 1 times [2024-10-13 01:59:48,307 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 01:59:48,308 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1708171878] [2024-10-13 01:59:48,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 01:59:48,308 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 01:59:48,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:59:48,569 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 01:59:48,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:59:48,577 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-13 01:59:48,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:59:48,582 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-13 01:59:48,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:59:48,585 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-13 01:59:48,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:59:48,590 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-13 01:59:48,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:59:48,594 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-10-13 01:59:48,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:59:48,598 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-13 01:59:48,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:59:48,603 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-10-13 01:59:48,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:59:48,605 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-10-13 01:59:48,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:59:48,611 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-13 01:59:48,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:59:48,615 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-10-13 01:59:48,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:59:48,621 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-10-13 01:59:48,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:59:48,624 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-10-13 01:59:48,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:59:48,627 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-13 01:59:48,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:59:48,632 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-13 01:59:48,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:59:48,635 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-10-13 01:59:48,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:59:48,639 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-10-13 01:59:48,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:59:48,642 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-10-13 01:59:48,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:59:48,645 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-10-13 01:59:48,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:59:48,650 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-13 01:59:48,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:59:48,653 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-10-13 01:59:48,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:59:48,658 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-10-13 01:59:48,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:59:48,661 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2024-10-13 01:59:48,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:59:48,665 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2024-10-13 01:59:48,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:59:48,668 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-10-13 01:59:48,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:59:48,671 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-10-13 01:59:48,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:59:48,674 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-10-13 01:59:48,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:59:48,677 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2024-10-13 01:59:48,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:59:48,681 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2024-10-13 01:59:48,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:59:48,685 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2024-10-13 01:59:48,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:59:48,689 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2024-10-13 01:59:48,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:59:48,693 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2024-10-13 01:59:48,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:59:48,695 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2024-10-13 01:59:48,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:59:48,698 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2024-10-13 01:59:48,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:59:48,702 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2024-10-13 01:59:48,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:59:48,707 INFO L134 CoverageAnalysis]: Checked inductivity of 2380 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2380 trivial. 0 not checked. [2024-10-13 01:59:48,708 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 01:59:48,708 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1708171878] [2024-10-13 01:59:48,709 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1708171878] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 01:59:48,709 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 01:59:48,709 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-13 01:59:48,709 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [973316861] [2024-10-13 01:59:48,709 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 01:59:48,712 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 01:59:48,712 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 01:59:48,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 01:59:48,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 01:59:48,714 INFO L87 Difference]: Start difference. First operand 109 states and 168 transitions. Second operand has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 1 states have call successors, (35), 1 states have call predecessors, (35), 1 states have return successors, (35), 1 states have call predecessors, (35), 1 states have call successors, (35) [2024-10-13 01:59:48,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 01:59:48,764 INFO L93 Difference]: Finished difference Result 218 states and 337 transitions. [2024-10-13 01:59:48,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 01:59:48,765 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 1 states have call successors, (35), 1 states have call predecessors, (35), 1 states have return successors, (35), 1 states have call predecessors, (35), 1 states have call successors, (35) Word has length 222 [2024-10-13 01:59:48,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 01:59:48,768 INFO L225 Difference]: With dead ends: 218 [2024-10-13 01:59:48,770 INFO L226 Difference]: Without dead ends: 110 [2024-10-13 01:59:48,772 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 01:59:48,773 INFO L432 NwaCegarLoop]: 149 mSDtfsCounter, 0 mSDsluCounter, 143 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 292 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-13 01:59:48,773 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 292 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-13 01:59:48,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2024-10-13 01:59:48,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 110. [2024-10-13 01:59:48,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110 states, 73 states have (on average 1.356164383561644) internal successors, (99), 73 states have internal predecessors, (99), 35 states have call successors, (35), 1 states have call predecessors, (35), 1 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) [2024-10-13 01:59:48,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 169 transitions. [2024-10-13 01:59:48,788 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 169 transitions. Word has length 222 [2024-10-13 01:59:48,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 01:59:48,789 INFO L471 AbstractCegarLoop]: Abstraction has 110 states and 169 transitions. [2024-10-13 01:59:48,790 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 1 states have call successors, (35), 1 states have call predecessors, (35), 1 states have return successors, (35), 1 states have call predecessors, (35), 1 states have call successors, (35) [2024-10-13 01:59:48,790 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 169 transitions. [2024-10-13 01:59:48,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2024-10-13 01:59:48,793 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 01:59:48,794 INFO L215 NwaCegarLoop]: trace histogram [35, 35, 35, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 01:59:48,794 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-13 01:59:48,794 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 01:59:48,795 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 01:59:48,795 INFO L85 PathProgramCache]: Analyzing trace with hash -688746566, now seen corresponding path program 1 times [2024-10-13 01:59:48,795 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 01:59:48,795 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1960466662] [2024-10-13 01:59:48,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 01:59:48,796 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 01:59:48,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:59:49,032 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 01:59:49,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:59:49,040 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-13 01:59:49,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:59:49,043 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-13 01:59:49,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:59:49,047 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-13 01:59:49,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:59:49,050 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-13 01:59:49,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:59:49,055 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-10-13 01:59:49,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:59:49,058 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-13 01:59:49,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:59:49,060 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-10-13 01:59:49,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:59:49,064 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-10-13 01:59:49,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:59:49,070 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-13 01:59:49,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:59:49,072 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-10-13 01:59:49,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:59:49,074 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-10-13 01:59:49,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:59:49,076 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-10-13 01:59:49,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:59:49,078 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-13 01:59:49,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:59:49,080 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-13 01:59:49,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:59:49,083 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-10-13 01:59:49,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:59:49,085 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-10-13 01:59:49,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:59:49,089 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-10-13 01:59:49,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:59:49,093 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-10-13 01:59:49,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:59:49,095 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-13 01:59:49,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:59:49,098 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-10-13 01:59:49,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:59:49,102 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-10-13 01:59:49,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:59:49,104 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2024-10-13 01:59:49,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:59:49,106 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2024-10-13 01:59:49,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:59:49,119 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-10-13 01:59:49,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:59:49,121 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-10-13 01:59:49,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:59:49,123 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-10-13 01:59:49,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:59:49,125 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2024-10-13 01:59:49,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:59:49,127 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2024-10-13 01:59:49,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:59:49,129 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2024-10-13 01:59:49,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:59:49,131 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2024-10-13 01:59:49,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:59:49,135 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2024-10-13 01:59:49,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:59:49,136 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2024-10-13 01:59:49,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:59:49,140 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2024-10-13 01:59:49,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:59:49,143 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2024-10-13 01:59:49,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:59:49,147 INFO L134 CoverageAnalysis]: Checked inductivity of 2380 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2380 trivial. 0 not checked. [2024-10-13 01:59:49,148 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 01:59:49,149 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1960466662] [2024-10-13 01:59:49,149 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1960466662] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 01:59:49,149 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 01:59:49,149 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-13 01:59:49,150 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1265320465] [2024-10-13 01:59:49,150 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 01:59:49,150 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-13 01:59:49,152 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 01:59:49,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-13 01:59:49,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-13 01:59:49,153 INFO L87 Difference]: Start difference. First operand 110 states and 169 transitions. Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 1 states have call successors, (35), 1 states have call predecessors, (35), 1 states have return successors, (35), 1 states have call predecessors, (35), 1 states have call successors, (35) [2024-10-13 01:59:49,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 01:59:49,450 INFO L93 Difference]: Finished difference Result 307 states and 472 transitions. [2024-10-13 01:59:49,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-13 01:59:49,451 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 1 states have call successors, (35), 1 states have call predecessors, (35), 1 states have return successors, (35), 1 states have call predecessors, (35), 1 states have call successors, (35) Word has length 223 [2024-10-13 01:59:49,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 01:59:49,453 INFO L225 Difference]: With dead ends: 307 [2024-10-13 01:59:49,453 INFO L226 Difference]: Without dead ends: 198 [2024-10-13 01:59:49,457 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-13 01:59:49,459 INFO L432 NwaCegarLoop]: 140 mSDtfsCounter, 145 mSDsluCounter, 201 mSDsCounter, 0 mSdLazyCounter, 116 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 341 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-13 01:59:49,462 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [145 Valid, 341 Invalid, 117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 116 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-13 01:59:49,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states. [2024-10-13 01:59:49,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 110. [2024-10-13 01:59:49,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110 states, 73 states have (on average 1.3424657534246576) internal successors, (98), 73 states have internal predecessors, (98), 35 states have call successors, (35), 1 states have call predecessors, (35), 1 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) [2024-10-13 01:59:49,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 168 transitions. [2024-10-13 01:59:49,487 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 168 transitions. Word has length 223 [2024-10-13 01:59:49,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 01:59:49,487 INFO L471 AbstractCegarLoop]: Abstraction has 110 states and 168 transitions. [2024-10-13 01:59:49,488 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 1 states have call successors, (35), 1 states have call predecessors, (35), 1 states have return successors, (35), 1 states have call predecessors, (35), 1 states have call successors, (35) [2024-10-13 01:59:49,488 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 168 transitions. [2024-10-13 01:59:49,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2024-10-13 01:59:49,493 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 01:59:49,494 INFO L215 NwaCegarLoop]: trace histogram [35, 35, 35, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 01:59:49,494 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-13 01:59:49,494 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 01:59:49,494 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 01:59:49,495 INFO L85 PathProgramCache]: Analyzing trace with hash 1612076024, now seen corresponding path program 1 times [2024-10-13 01:59:49,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 01:59:49,495 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2086873119] [2024-10-13 01:59:49,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 01:59:49,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 01:59:49,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:59:50,363 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 01:59:50,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:59:50,367 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-13 01:59:50,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:59:50,369 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-13 01:59:50,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:59:50,371 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-13 01:59:50,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:59:50,373 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-13 01:59:50,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:59:50,375 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-10-13 01:59:50,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:59:50,377 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-13 01:59:50,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:59:50,379 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-10-13 01:59:50,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:59:50,402 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-10-13 01:59:50,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:59:50,405 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-13 01:59:50,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:59:50,408 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-10-13 01:59:50,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:59:50,411 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-10-13 01:59:50,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:59:50,415 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-10-13 01:59:50,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:59:50,418 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-13 01:59:50,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:59:50,423 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-13 01:59:50,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:59:50,426 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-10-13 01:59:50,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:59:50,452 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-10-13 01:59:50,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:59:50,458 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-10-13 01:59:50,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:59:50,462 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-10-13 01:59:50,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:59:50,466 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-13 01:59:50,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:59:50,471 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-10-13 01:59:50,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:59:50,474 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-10-13 01:59:50,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:59:50,479 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2024-10-13 01:59:50,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:59:50,485 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2024-10-13 01:59:50,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:59:50,490 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-10-13 01:59:50,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:59:50,494 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-10-13 01:59:50,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:59:50,497 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-10-13 01:59:50,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:59:50,501 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2024-10-13 01:59:50,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:59:50,507 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2024-10-13 01:59:50,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:59:50,512 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2024-10-13 01:59:50,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:59:50,515 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2024-10-13 01:59:50,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:59:50,523 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2024-10-13 01:59:50,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:59:50,531 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2024-10-13 01:59:50,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:59:50,537 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2024-10-13 01:59:50,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:59:50,542 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2024-10-13 01:59:50,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:59:50,548 INFO L134 CoverageAnalysis]: Checked inductivity of 2380 backedges. 21 proven. 81 refuted. 0 times theorem prover too weak. 2278 trivial. 0 not checked. [2024-10-13 01:59:50,548 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 01:59:50,549 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2086873119] [2024-10-13 01:59:50,549 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2086873119] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 01:59:50,549 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [721916878] [2024-10-13 01:59:50,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 01:59:50,549 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 01:59:50,550 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 01:59:50,552 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) [2024-10-13 01:59:50,553 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-13 01:59:50,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:59:50,730 INFO L255 TraceCheckSpWp]: Trace formula consists of 502 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-10-13 01:59:50,747 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 01:59:51,519 INFO L134 CoverageAnalysis]: Checked inductivity of 2380 backedges. 1305 proven. 93 refuted. 0 times theorem prover too weak. 982 trivial. 0 not checked. [2024-10-13 01:59:51,519 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 01:59:52,507 INFO L134 CoverageAnalysis]: Checked inductivity of 2380 backedges. 105 proven. 96 refuted. 0 times theorem prover too weak. 2179 trivial. 0 not checked. [2024-10-13 01:59:52,508 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [721916878] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-13 01:59:52,508 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-13 01:59:52,508 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 10, 12] total 23 [2024-10-13 01:59:52,509 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1142339197] [2024-10-13 01:59:52,509 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-13 01:59:52,512 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-10-13 01:59:52,513 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 01:59:52,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-10-13 01:59:52,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=421, Unknown=0, NotChecked=0, Total=506 [2024-10-13 01:59:52,514 INFO L87 Difference]: Start difference. First operand 110 states and 168 transitions. Second operand has 23 states, 22 states have (on average 5.181818181818182) internal successors, (114), 23 states have internal predecessors, (114), 7 states have call successors, (80), 3 states have call predecessors, (80), 7 states have return successors, (81), 6 states have call predecessors, (81), 7 states have call successors, (81) [2024-10-13 01:59:55,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 01:59:55,532 INFO L93 Difference]: Finished difference Result 406 states and 584 transitions. [2024-10-13 01:59:55,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2024-10-13 01:59:55,533 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 22 states have (on average 5.181818181818182) internal successors, (114), 23 states have internal predecessors, (114), 7 states have call successors, (80), 3 states have call predecessors, (80), 7 states have return successors, (81), 6 states have call predecessors, (81), 7 states have call successors, (81) Word has length 223 [2024-10-13 01:59:55,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 01:59:55,536 INFO L225 Difference]: With dead ends: 406 [2024-10-13 01:59:55,536 INFO L226 Difference]: Without dead ends: 297 [2024-10-13 01:59:55,538 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 574 GetRequests, 505 SyntacticMatches, 0 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1319 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=1104, Invalid=3866, Unknown=0, NotChecked=0, Total=4970 [2024-10-13 01:59:55,539 INFO L432 NwaCegarLoop]: 162 mSDtfsCounter, 972 mSDsluCounter, 812 mSDsCounter, 0 mSdLazyCounter, 1296 mSolverCounterSat, 552 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 972 SdHoareTripleChecker+Valid, 974 SdHoareTripleChecker+Invalid, 1848 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 552 IncrementalHoareTripleChecker+Valid, 1296 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-10-13 01:59:55,540 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [972 Valid, 974 Invalid, 1848 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [552 Valid, 1296 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-10-13 01:59:55,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 297 states. [2024-10-13 01:59:55,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 297 to 265. [2024-10-13 01:59:55,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 265 states, 167 states have (on average 1.2395209580838322) internal successors, (207), 169 states have internal predecessors, (207), 86 states have call successors, (86), 11 states have call predecessors, (86), 11 states have return successors, (86), 84 states have call predecessors, (86), 86 states have call successors, (86) [2024-10-13 01:59:55,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 265 states to 265 states and 379 transitions. [2024-10-13 01:59:55,595 INFO L78 Accepts]: Start accepts. Automaton has 265 states and 379 transitions. Word has length 223 [2024-10-13 01:59:55,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 01:59:55,596 INFO L471 AbstractCegarLoop]: Abstraction has 265 states and 379 transitions. [2024-10-13 01:59:55,597 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 22 states have (on average 5.181818181818182) internal successors, (114), 23 states have internal predecessors, (114), 7 states have call successors, (80), 3 states have call predecessors, (80), 7 states have return successors, (81), 6 states have call predecessors, (81), 7 states have call successors, (81) [2024-10-13 01:59:55,597 INFO L276 IsEmpty]: Start isEmpty. Operand 265 states and 379 transitions. [2024-10-13 01:59:55,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2024-10-13 01:59:55,600 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 01:59:55,600 INFO L215 NwaCegarLoop]: trace histogram [35, 35, 35, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 01:59:55,620 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-13 01:59:55,801 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 [2024-10-13 01:59:55,801 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 01:59:55,802 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 01:59:55,802 INFO L85 PathProgramCache]: Analyzing trace with hash 1358873852, now seen corresponding path program 1 times [2024-10-13 01:59:55,802 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 01:59:55,802 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1747934014] [2024-10-13 01:59:55,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 01:59:55,803 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 01:59:55,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:59:55,949 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 01:59:55,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:59:55,951 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-13 01:59:55,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:59:55,953 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-13 01:59:55,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:59:55,955 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-13 01:59:55,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:59:55,958 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-13 01:59:55,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:59:55,959 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-10-13 01:59:55,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:59:55,964 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-13 01:59:55,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:59:55,968 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-10-13 01:59:55,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:59:55,970 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-10-13 01:59:55,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:59:55,972 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-13 01:59:55,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:59:55,974 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-10-13 01:59:55,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:59:55,976 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-10-13 01:59:55,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:59:55,978 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-10-13 01:59:55,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:59:55,979 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-13 01:59:55,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:59:55,994 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-13 01:59:55,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:59:55,996 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-10-13 01:59:55,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:59:55,997 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-10-13 01:59:55,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:59:55,999 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-10-13 01:59:56,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:59:56,001 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-10-13 01:59:56,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:59:56,002 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-13 01:59:56,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:59:56,004 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-10-13 01:59:56,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:59:56,006 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-10-13 01:59:56,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:59:56,007 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2024-10-13 01:59:56,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:59:56,009 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2024-10-13 01:59:56,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:59:56,011 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-10-13 01:59:56,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:59:56,013 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-10-13 01:59:56,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:59:56,014 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-10-13 01:59:56,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:59:56,016 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2024-10-13 01:59:56,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:59:56,018 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2024-10-13 01:59:56,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:59:56,020 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2024-10-13 01:59:56,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:59:56,021 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2024-10-13 01:59:56,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:59:56,023 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2024-10-13 01:59:56,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:59:56,024 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2024-10-13 01:59:56,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:59:56,026 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2024-10-13 01:59:56,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:59:56,028 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2024-10-13 01:59:56,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:59:56,030 INFO L134 CoverageAnalysis]: Checked inductivity of 2380 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2380 trivial. 0 not checked. [2024-10-13 01:59:56,030 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 01:59:56,031 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1747934014] [2024-10-13 01:59:56,031 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1747934014] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 01:59:56,031 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 01:59:56,031 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-13 01:59:56,031 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [404980459] [2024-10-13 01:59:56,031 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 01:59:56,032 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-13 01:59:56,032 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 01:59:56,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-13 01:59:56,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-13 01:59:56,033 INFO L87 Difference]: Start difference. First operand 265 states and 379 transitions. Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 1 states have call successors, (35), 1 states have call predecessors, (35), 1 states have return successors, (35), 1 states have call predecessors, (35), 1 states have call successors, (35) [2024-10-13 01:59:56,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 01:59:56,123 INFO L93 Difference]: Finished difference Result 693 states and 993 transitions. [2024-10-13 01:59:56,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-13 01:59:56,123 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 1 states have call successors, (35), 1 states have call predecessors, (35), 1 states have return successors, (35), 1 states have call predecessors, (35), 1 states have call successors, (35) Word has length 223 [2024-10-13 01:59:56,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 01:59:56,129 INFO L225 Difference]: With dead ends: 693 [2024-10-13 01:59:56,129 INFO L226 Difference]: Without dead ends: 462 [2024-10-13 01:59:56,130 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-13 01:59:56,131 INFO L432 NwaCegarLoop]: 253 mSDtfsCounter, 126 mSDsluCounter, 389 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 642 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-13 01:59:56,131 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [126 Valid, 642 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-13 01:59:56,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 462 states. [2024-10-13 01:59:56,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 462 to 291. [2024-10-13 01:59:56,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 291 states, 193 states have (on average 1.2797927461139897) internal successors, (247), 195 states have internal predecessors, (247), 86 states have call successors, (86), 11 states have call predecessors, (86), 11 states have return successors, (86), 84 states have call predecessors, (86), 86 states have call successors, (86) [2024-10-13 01:59:56,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 291 states to 291 states and 419 transitions. [2024-10-13 01:59:56,188 INFO L78 Accepts]: Start accepts. Automaton has 291 states and 419 transitions. Word has length 223 [2024-10-13 01:59:56,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 01:59:56,188 INFO L471 AbstractCegarLoop]: Abstraction has 291 states and 419 transitions. [2024-10-13 01:59:56,188 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 1 states have call successors, (35), 1 states have call predecessors, (35), 1 states have return successors, (35), 1 states have call predecessors, (35), 1 states have call successors, (35) [2024-10-13 01:59:56,189 INFO L276 IsEmpty]: Start isEmpty. Operand 291 states and 419 transitions. [2024-10-13 01:59:56,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2024-10-13 01:59:56,194 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 01:59:56,195 INFO L215 NwaCegarLoop]: trace histogram [35, 35, 35, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 01:59:56,195 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-13 01:59:56,195 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 01:59:56,195 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 01:59:56,195 INFO L85 PathProgramCache]: Analyzing trace with hash 347756602, now seen corresponding path program 1 times [2024-10-13 01:59:56,195 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 01:59:56,195 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1382078130] [2024-10-13 01:59:56,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 01:59:56,196 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 01:59:56,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:59:56,359 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 01:59:56,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:59:56,362 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-13 01:59:56,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:59:56,364 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-13 01:59:56,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:59:56,365 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-13 01:59:56,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:59:56,368 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-13 01:59:56,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:59:56,371 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-10-13 01:59:56,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:59:56,372 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-13 01:59:56,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:59:56,374 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-10-13 01:59:56,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:59:56,375 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-10-13 01:59:56,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:59:56,377 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-13 01:59:56,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:59:56,379 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-10-13 01:59:56,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:59:56,380 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-10-13 01:59:56,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:59:56,382 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-10-13 01:59:56,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:59:56,384 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-13 01:59:56,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:59:56,386 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-13 01:59:56,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:59:56,389 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-10-13 01:59:56,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:59:56,391 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-10-13 01:59:56,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:59:56,393 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-10-13 01:59:56,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:59:56,394 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-10-13 01:59:56,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:59:56,396 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-13 01:59:56,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:59:56,398 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-10-13 01:59:56,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:59:56,400 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-10-13 01:59:56,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:59:56,402 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2024-10-13 01:59:56,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:59:56,403 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2024-10-13 01:59:56,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:59:56,405 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-10-13 01:59:56,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:59:56,407 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-10-13 01:59:56,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:59:56,409 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-10-13 01:59:56,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:59:56,410 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2024-10-13 01:59:56,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:59:56,412 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2024-10-13 01:59:56,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:59:56,413 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2024-10-13 01:59:56,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:59:56,414 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2024-10-13 01:59:56,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:59:56,416 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2024-10-13 01:59:56,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:59:56,418 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2024-10-13 01:59:56,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:59:56,419 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2024-10-13 01:59:56,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:59:56,421 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2024-10-13 01:59:56,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:59:56,424 INFO L134 CoverageAnalysis]: Checked inductivity of 2380 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2380 trivial. 0 not checked. [2024-10-13 01:59:56,424 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 01:59:56,425 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1382078130] [2024-10-13 01:59:56,425 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1382078130] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 01:59:56,425 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 01:59:56,425 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-13 01:59:56,425 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1510054151] [2024-10-13 01:59:56,425 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 01:59:56,426 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-13 01:59:56,426 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 01:59:56,427 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-13 01:59:56,427 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-13 01:59:56,427 INFO L87 Difference]: Start difference. First operand 291 states and 419 transitions. Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 1 states have call successors, (35), 1 states have call predecessors, (35), 1 states have return successors, (35), 1 states have call predecessors, (35), 1 states have call successors, (35) [2024-10-13 01:59:56,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 01:59:56,616 INFO L93 Difference]: Finished difference Result 548 states and 790 transitions. [2024-10-13 01:59:56,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-13 01:59:56,617 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 1 states have call successors, (35), 1 states have call predecessors, (35), 1 states have return successors, (35), 1 states have call predecessors, (35), 1 states have call successors, (35) Word has length 223 [2024-10-13 01:59:56,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 01:59:56,619 INFO L225 Difference]: With dead ends: 548 [2024-10-13 01:59:56,620 INFO L226 Difference]: Without dead ends: 291 [2024-10-13 01:59:56,621 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-13 01:59:56,621 INFO L432 NwaCegarLoop]: 138 mSDtfsCounter, 145 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 202 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-13 01:59:56,622 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [145 Valid, 202 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-13 01:59:56,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 291 states. [2024-10-13 01:59:56,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 291 to 291. [2024-10-13 01:59:56,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 291 states, 193 states have (on average 1.2694300518134716) internal successors, (245), 195 states have internal predecessors, (245), 86 states have call successors, (86), 11 states have call predecessors, (86), 11 states have return successors, (86), 84 states have call predecessors, (86), 86 states have call successors, (86) [2024-10-13 01:59:56,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 291 states to 291 states and 417 transitions. [2024-10-13 01:59:56,666 INFO L78 Accepts]: Start accepts. Automaton has 291 states and 417 transitions. Word has length 223 [2024-10-13 01:59:56,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 01:59:56,667 INFO L471 AbstractCegarLoop]: Abstraction has 291 states and 417 transitions. [2024-10-13 01:59:56,667 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 1 states have call successors, (35), 1 states have call predecessors, (35), 1 states have return successors, (35), 1 states have call predecessors, (35), 1 states have call successors, (35) [2024-10-13 01:59:56,667 INFO L276 IsEmpty]: Start isEmpty. Operand 291 states and 417 transitions. [2024-10-13 01:59:56,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2024-10-13 01:59:56,669 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 01:59:56,670 INFO L215 NwaCegarLoop]: trace histogram [35, 35, 35, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 01:59:56,670 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-13 01:59:56,670 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 01:59:56,670 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 01:59:56,670 INFO L85 PathProgramCache]: Analyzing trace with hash -1646388104, now seen corresponding path program 1 times [2024-10-13 01:59:56,671 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 01:59:56,671 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1335200754] [2024-10-13 01:59:56,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 01:59:56,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 01:59:56,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:59:57,876 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 01:59:57,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:59:57,878 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-13 01:59:57,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:59:57,881 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-13 01:59:57,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:59:57,884 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-13 01:59:57,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:59:57,886 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-13 01:59:57,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:59:57,888 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-10-13 01:59:57,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:59:57,889 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-13 01:59:57,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:59:57,890 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-10-13 01:59:57,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:59:57,915 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-10-13 01:59:57,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:59:57,919 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-13 01:59:57,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:59:57,921 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-10-13 01:59:57,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:59:57,924 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-10-13 01:59:57,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:59:57,951 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-10-13 01:59:57,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:59:57,954 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-13 01:59:57,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:59:57,958 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-13 01:59:57,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:59:57,962 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-10-13 01:59:57,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:59:57,967 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-10-13 01:59:57,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:59:57,969 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-10-13 01:59:57,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:59:57,975 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-10-13 01:59:57,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:59:57,978 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-13 01:59:57,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:59:57,983 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-10-13 01:59:57,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:59:57,987 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-10-13 01:59:57,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:59:57,991 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2024-10-13 01:59:57,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:59:57,994 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2024-10-13 01:59:57,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:59:57,997 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-10-13 01:59:57,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:59:58,001 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-10-13 01:59:58,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:59:58,005 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-10-13 01:59:58,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:59:58,008 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2024-10-13 01:59:58,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:59:58,013 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2024-10-13 01:59:58,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:59:58,018 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2024-10-13 01:59:58,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:59:58,022 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2024-10-13 01:59:58,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:59:58,026 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2024-10-13 01:59:58,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:59:58,031 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2024-10-13 01:59:58,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:59:58,035 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2024-10-13 01:59:58,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:59:58,038 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2024-10-13 01:59:58,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:59:58,043 INFO L134 CoverageAnalysis]: Checked inductivity of 2380 backedges. 21 proven. 81 refuted. 0 times theorem prover too weak. 2278 trivial. 0 not checked. [2024-10-13 01:59:58,043 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 01:59:58,043 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1335200754] [2024-10-13 01:59:58,045 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1335200754] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 01:59:58,045 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [818927390] [2024-10-13 01:59:58,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 01:59:58,046 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 01:59:58,046 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 01:59:58,047 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) [2024-10-13 01:59:58,050 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-13 01:59:58,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:59:58,222 INFO L255 TraceCheckSpWp]: Trace formula consists of 501 conjuncts, 29 conjuncts are in the unsatisfiable core [2024-10-13 01:59:58,233 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 02:00:01,505 INFO L134 CoverageAnalysis]: Checked inductivity of 2380 backedges. 1511 proven. 237 refuted. 0 times theorem prover too weak. 632 trivial. 0 not checked. [2024-10-13 02:00:01,505 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 02:00:08,342 INFO L134 CoverageAnalysis]: Checked inductivity of 2380 backedges. 135 proven. 255 refuted. 0 times theorem prover too weak. 1990 trivial. 0 not checked. [2024-10-13 02:00:08,342 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [818927390] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-13 02:00:08,342 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-13 02:00:08,343 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 19, 19] total 40 [2024-10-13 02:00:08,343 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1976382488] [2024-10-13 02:00:08,343 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-13 02:00:08,344 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 40 states [2024-10-13 02:00:08,345 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 02:00:08,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2024-10-13 02:00:08,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=349, Invalid=1211, Unknown=0, NotChecked=0, Total=1560 [2024-10-13 02:00:08,347 INFO L87 Difference]: Start difference. First operand 291 states and 417 transitions. Second operand has 40 states, 38 states have (on average 3.8157894736842106) internal successors, (145), 38 states have internal predecessors, (145), 11 states have call successors, (90), 5 states have call predecessors, (90), 12 states have return successors, (91), 10 states have call predecessors, (91), 11 states have call successors, (91) [2024-10-13 02:00:29,772 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-10-13 02:00:42,082 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-10-13 02:00:58,711 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.08s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-10-13 02:01:03,477 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-10-13 02:01:08,195 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.70s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-10-13 02:01:12,310 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0]