./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-ci_file-28.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 61a67961 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-ci_file-28.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 d1cb787af494abcaff939caeb847017cf6182011ac4c5e249d82499aa017392f --- Real Ultimate output --- This is Ultimate 0.2.5-wip.fs.cvc5-61a6796-m [2024-10-14 09:02:37,115 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-14 09:02:37,186 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-14 09:02:37,193 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-14 09:02:37,194 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-14 09:02:37,224 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-14 09:02:37,225 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-14 09:02:37,226 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-14 09:02:37,226 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-14 09:02:37,227 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-14 09:02:37,228 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-14 09:02:37,228 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-14 09:02:37,229 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-14 09:02:37,229 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-14 09:02:37,229 INFO L153 SettingsManager]: * Use SBE=true [2024-10-14 09:02:37,230 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-14 09:02:37,230 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-14 09:02:37,230 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-14 09:02:37,231 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-14 09:02:37,232 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-14 09:02:37,232 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-14 09:02:37,234 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-14 09:02:37,234 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-14 09:02:37,234 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-14 09:02:37,235 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-14 09:02:37,235 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-14 09:02:37,235 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-14 09:02:37,235 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-14 09:02:37,236 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-14 09:02:37,236 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-14 09:02:37,236 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-14 09:02:37,236 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-14 09:02:37,237 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 09:02:37,237 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-14 09:02:37,238 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-14 09:02:37,238 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-14 09:02:37,239 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-14 09:02:37,239 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-14 09:02:37,239 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-14 09:02:37,240 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-14 09:02:37,240 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-14 09:02:37,240 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-14 09:02:37,241 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d1cb787af494abcaff939caeb847017cf6182011ac4c5e249d82499aa017392f [2024-10-14 09:02:37,544 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-14 09:02:37,564 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-14 09:02:37,567 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-14 09:02:37,568 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-14 09:02:37,568 INFO L274 PluginConnector]: CDTParser initialized [2024-10-14 09:02:37,569 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-ci_file-28.i [2024-10-14 09:02:39,106 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-14 09:02:39,318 INFO L384 CDTParser]: Found 1 translation units. [2024-10-14 09:02:39,318 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-ci_file-28.i [2024-10-14 09:02:39,339 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2e313190f/744b9d2c93de40a9b99a2584576229fe/FLAGed96a22b1 [2024-10-14 09:02:39,670 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2e313190f/744b9d2c93de40a9b99a2584576229fe [2024-10-14 09:02:39,672 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-14 09:02:39,674 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-14 09:02:39,675 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-14 09:02:39,675 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-14 09:02:39,681 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-14 09:02:39,682 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 09:02:39" (1/1) ... [2024-10-14 09:02:39,682 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@12c930b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:02:39, skipping insertion in model container [2024-10-14 09:02:39,683 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 09:02:39" (1/1) ... [2024-10-14 09:02:39,725 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-14 09:02:39,908 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-ci_file-28.i[919,932] [2024-10-14 09:02:40,029 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 09:02:40,046 INFO L200 MainTranslator]: Completed pre-run [2024-10-14 09:02:40,061 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-ci_file-28.i[919,932] [2024-10-14 09:02:40,101 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 09:02:40,121 INFO L204 MainTranslator]: Completed translation [2024-10-14 09:02:40,122 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:02:40 WrapperNode [2024-10-14 09:02:40,122 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-14 09:02:40,123 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-14 09:02:40,124 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-14 09:02:40,124 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-14 09:02:40,132 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:02:40" (1/1) ... [2024-10-14 09:02:40,148 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:02:40" (1/1) ... [2024-10-14 09:02:40,213 INFO L138 Inliner]: procedures = 26, calls = 39, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 232 [2024-10-14 09:02:40,214 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-14 09:02:40,215 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-14 09:02:40,215 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-14 09:02:40,215 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-14 09:02:40,226 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:02:40" (1/1) ... [2024-10-14 09:02:40,227 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:02:40" (1/1) ... [2024-10-14 09:02:40,255 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:02:40" (1/1) ... [2024-10-14 09:02:40,306 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-10-14 09:02:40,306 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:02:40" (1/1) ... [2024-10-14 09:02:40,306 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:02:40" (1/1) ... [2024-10-14 09:02:40,347 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:02:40" (1/1) ... [2024-10-14 09:02:40,357 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:02:40" (1/1) ... [2024-10-14 09:02:40,361 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:02:40" (1/1) ... [2024-10-14 09:02:40,365 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:02:40" (1/1) ... [2024-10-14 09:02:40,373 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-14 09:02:40,375 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-14 09:02:40,375 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-14 09:02:40,375 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-14 09:02:40,376 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:02:40" (1/1) ... [2024-10-14 09:02:40,381 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 09:02:40,394 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 09:02:40,423 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-14 09:02:40,427 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-14 09:02:40,478 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-14 09:02:40,479 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-10-14 09:02:40,480 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-10-14 09:02:40,480 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-14 09:02:40,480 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-14 09:02:40,480 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-14 09:02:40,583 INFO L238 CfgBuilder]: Building ICFG [2024-10-14 09:02:40,586 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-14 09:02:41,099 INFO L? ?]: Removed 22 outVars from TransFormulas that were not future-live. [2024-10-14 09:02:41,100 INFO L287 CfgBuilder]: Performing block encoding [2024-10-14 09:02:41,138 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-14 09:02:41,140 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-14 09:02:41,140 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 09:02:41 BoogieIcfgContainer [2024-10-14 09:02:41,140 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-14 09:02:41,142 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-14 09:02:41,143 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-14 09:02:41,146 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-14 09:02:41,147 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 09:02:39" (1/3) ... [2024-10-14 09:02:41,148 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34bf6815 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 09:02:41, skipping insertion in model container [2024-10-14 09:02:41,148 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:02:40" (2/3) ... [2024-10-14 09:02:41,149 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34bf6815 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 09:02:41, skipping insertion in model container [2024-10-14 09:02:41,149 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 09:02:41" (3/3) ... [2024-10-14 09:02:41,151 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-pe-ci_file-28.i [2024-10-14 09:02:41,177 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-14 09:02:41,177 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-14 09:02:41,253 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-14 09:02:41,262 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;@7373135a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-14 09:02:41,262 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-14 09:02:41,266 INFO L276 IsEmpty]: Start isEmpty. Operand has 93 states, 64 states have (on average 1.5) internal successors, (96), 65 states have internal predecessors, (96), 26 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2024-10-14 09:02:41,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2024-10-14 09:02:41,278 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 09:02:41,279 INFO L215 NwaCegarLoop]: trace histogram [26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 09:02:41,280 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 09:02:41,285 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 09:02:41,285 INFO L85 PathProgramCache]: Analyzing trace with hash 571657426, now seen corresponding path program 1 times [2024-10-14 09:02:41,294 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 09:02:41,295 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [644980687] [2024-10-14 09:02:41,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 09:02:41,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 09:02:41,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:02:41,592 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 09:02:41,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:02:41,606 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-14 09:02:41,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:02:41,615 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-14 09:02:41,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:02:41,628 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-14 09:02:41,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:02:41,638 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-14 09:02:41,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:02:41,650 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-14 09:02:41,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:02:41,660 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-14 09:02:41,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:02:41,665 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-14 09:02:41,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:02:41,670 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-14 09:02:41,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:02:41,674 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-14 09:02:41,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:02:41,679 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-14 09:02:41,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:02:41,687 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 09:02:41,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:02:41,716 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 09:02:41,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:02:41,720 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-14 09:02:41,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:02:41,735 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-14 09:02:41,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:02:41,742 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-14 09:02:41,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:02:41,749 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-14 09:02:41,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:02:41,755 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-14 09:02:41,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:02:41,760 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-14 09:02:41,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:02:41,764 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-14 09:02:41,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:02:41,768 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-10-14 09:02:41,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:02:41,772 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-10-14 09:02:41,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:02:41,776 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-10-14 09:02:41,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:02:41,781 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2024-10-14 09:02:41,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:02:41,784 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-10-14 09:02:41,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:02:41,788 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-10-14 09:02:41,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:02:41,795 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked. [2024-10-14 09:02:41,795 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 09:02:41,796 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [644980687] [2024-10-14 09:02:41,798 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [644980687] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 09:02:41,798 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 09:02:41,798 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 09:02:41,800 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [908531869] [2024-10-14 09:02:41,801 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 09:02:41,806 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-14 09:02:41,807 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 09:02:41,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-14 09:02:41,833 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-14 09:02:41,835 INFO L87 Difference]: Start difference. First operand has 93 states, 64 states have (on average 1.5) internal successors, (96), 65 states have internal predecessors, (96), 26 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) Second operand has 2 states, 2 states have (on average 22.5) internal successors, (45), 2 states have internal predecessors, (45), 2 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 2 states have call successors, (26) [2024-10-14 09:02:41,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 09:02:41,899 INFO L93 Difference]: Finished difference Result 183 states and 320 transitions. [2024-10-14 09:02:41,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-14 09:02:41,902 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 22.5) internal successors, (45), 2 states have internal predecessors, (45), 2 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 2 states have call successors, (26) Word has length 172 [2024-10-14 09:02:41,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 09:02:41,911 INFO L225 Difference]: With dead ends: 183 [2024-10-14 09:02:41,911 INFO L226 Difference]: Without dead ends: 91 [2024-10-14 09:02:41,916 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-14 09:02:41,919 INFO L432 NwaCegarLoop]: 139 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 139 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 09:02:41,920 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 139 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 09:02:41,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2024-10-14 09:02:41,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 91. [2024-10-14 09:02:41,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 63 states have (on average 1.4444444444444444) internal successors, (91), 63 states have internal predecessors, (91), 26 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2024-10-14 09:02:41,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 143 transitions. [2024-10-14 09:02:41,983 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 143 transitions. Word has length 172 [2024-10-14 09:02:41,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 09:02:41,984 INFO L471 AbstractCegarLoop]: Abstraction has 91 states and 143 transitions. [2024-10-14 09:02:41,985 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 22.5) internal successors, (45), 2 states have internal predecessors, (45), 2 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 2 states have call successors, (26) [2024-10-14 09:02:41,985 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 143 transitions. [2024-10-14 09:02:41,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2024-10-14 09:02:41,989 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 09:02:41,989 INFO L215 NwaCegarLoop]: trace histogram [26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 09:02:41,989 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-14 09:02:41,990 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 09:02:41,990 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 09:02:41,990 INFO L85 PathProgramCache]: Analyzing trace with hash 341326618, now seen corresponding path program 1 times [2024-10-14 09:02:41,991 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 09:02:41,991 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2110890617] [2024-10-14 09:02:41,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 09:02:41,991 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 09:02:42,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:02:42,380 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 09:02:42,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:02:42,384 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-14 09:02:42,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:02:42,389 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-14 09:02:42,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:02:42,394 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-14 09:02:42,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:02:42,402 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-14 09:02:42,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:02:42,405 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-14 09:02:42,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:02:42,412 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-14 09:02:42,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:02:42,417 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-14 09:02:42,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:02:42,423 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-14 09:02:42,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:02:42,426 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-14 09:02:42,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:02:42,429 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-14 09:02:42,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:02:42,436 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 09:02:42,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:02:42,440 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 09:02:42,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:02:42,443 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-14 09:02:42,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:02:42,451 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-14 09:02:42,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:02:42,459 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-14 09:02:42,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:02:42,466 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-14 09:02:42,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:02:42,470 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-14 09:02:42,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:02:42,474 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-14 09:02:42,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:02:42,478 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-14 09:02:42,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:02:42,481 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-10-14 09:02:42,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:02:42,487 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-10-14 09:02:42,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:02:42,492 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-10-14 09:02:42,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:02:42,497 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2024-10-14 09:02:42,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:02:42,502 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-10-14 09:02:42,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:02:42,508 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-10-14 09:02:42,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:02:42,514 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked. [2024-10-14 09:02:42,516 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 09:02:42,516 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2110890617] [2024-10-14 09:02:42,517 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2110890617] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 09:02:42,517 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 09:02:42,517 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 09:02:42,517 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [313595565] [2024-10-14 09:02:42,517 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 09:02:42,519 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 09:02:42,522 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 09:02:42,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 09:02:42,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 09:02:42,523 INFO L87 Difference]: Start difference. First operand 91 states and 143 transitions. Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2024-10-14 09:02:42,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 09:02:42,582 INFO L93 Difference]: Finished difference Result 182 states and 287 transitions. [2024-10-14 09:02:42,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 09:02:42,583 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) Word has length 172 [2024-10-14 09:02:42,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 09:02:42,590 INFO L225 Difference]: With dead ends: 182 [2024-10-14 09:02:42,590 INFO L226 Difference]: Without dead ends: 92 [2024-10-14 09:02:42,591 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 09:02:42,592 INFO L432 NwaCegarLoop]: 138 mSDtfsCounter, 0 mSDsluCounter, 133 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 271 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 09:02:42,592 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 271 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 09:02:42,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2024-10-14 09:02:42,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 92. [2024-10-14 09:02:42,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 64 states have (on average 1.4375) internal successors, (92), 64 states have internal predecessors, (92), 26 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2024-10-14 09:02:42,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 144 transitions. [2024-10-14 09:02:42,619 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 144 transitions. Word has length 172 [2024-10-14 09:02:42,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 09:02:42,623 INFO L471 AbstractCegarLoop]: Abstraction has 92 states and 144 transitions. [2024-10-14 09:02:42,623 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2024-10-14 09:02:42,623 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 144 transitions. [2024-10-14 09:02:42,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2024-10-14 09:02:42,628 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 09:02:42,628 INFO L215 NwaCegarLoop]: trace histogram [26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 09:02:42,629 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-14 09:02:42,629 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 09:02:42,629 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 09:02:42,629 INFO L85 PathProgramCache]: Analyzing trace with hash 1021384988, now seen corresponding path program 1 times [2024-10-14 09:02:42,630 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 09:02:42,630 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1450723926] [2024-10-14 09:02:42,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 09:02:42,630 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 09:02:42,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:02:43,059 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 09:02:43,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:02:43,070 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-14 09:02:43,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:02:43,078 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-14 09:02:43,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:02:43,089 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-14 09:02:43,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:02:43,098 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-14 09:02:43,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:02:43,105 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-14 09:02:43,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:02:43,110 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-14 09:02:43,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:02:43,115 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-14 09:02:43,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:02:43,126 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-14 09:02:43,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:02:43,132 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-14 09:02:43,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:02:43,139 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-14 09:02:43,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:02:43,144 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 09:02:43,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:02:43,150 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 09:02:43,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:02:43,156 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-14 09:02:43,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:02:43,163 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-14 09:02:43,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:02:43,169 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-14 09:02:43,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:02:43,176 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-14 09:02:43,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:02:43,182 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-14 09:02:43,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:02:43,187 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-14 09:02:43,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:02:43,193 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-14 09:02:43,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:02:43,203 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-10-14 09:02:43,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:02:43,209 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-10-14 09:02:43,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:02:43,222 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-10-14 09:02:43,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:02:43,229 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2024-10-14 09:02:43,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:02:43,245 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-10-14 09:02:43,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:02:43,253 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-10-14 09:02:43,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:02:43,260 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked. [2024-10-14 09:02:43,262 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 09:02:43,263 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1450723926] [2024-10-14 09:02:43,263 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1450723926] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 09:02:43,263 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 09:02:43,264 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 09:02:43,264 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [634293160] [2024-10-14 09:02:43,264 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 09:02:43,265 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 09:02:43,266 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 09:02:43,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 09:02:43,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-14 09:02:43,268 INFO L87 Difference]: Start difference. First operand 92 states and 144 transitions. Second operand has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2024-10-14 09:02:43,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 09:02:43,631 INFO L93 Difference]: Finished difference Result 313 states and 491 transitions. [2024-10-14 09:02:43,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 09:02:43,632 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) Word has length 172 [2024-10-14 09:02:43,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 09:02:43,637 INFO L225 Difference]: With dead ends: 313 [2024-10-14 09:02:43,637 INFO L226 Difference]: Without dead ends: 222 [2024-10-14 09:02:43,638 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-10-14 09:02:43,640 INFO L432 NwaCegarLoop]: 187 mSDtfsCounter, 159 mSDsluCounter, 402 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 80 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 589 SdHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 80 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-14 09:02:43,640 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [159 Valid, 589 Invalid, 177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [80 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-14 09:02:43,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 222 states. [2024-10-14 09:02:43,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 222 to 181. [2024-10-14 09:02:43,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 181 states, 126 states have (on average 1.4285714285714286) internal successors, (180), 126 states have internal predecessors, (180), 52 states have call successors, (52), 2 states have call predecessors, (52), 2 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) [2024-10-14 09:02:43,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 284 transitions. [2024-10-14 09:02:43,678 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 284 transitions. Word has length 172 [2024-10-14 09:02:43,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 09:02:43,682 INFO L471 AbstractCegarLoop]: Abstraction has 181 states and 284 transitions. [2024-10-14 09:02:43,682 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2024-10-14 09:02:43,682 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 284 transitions. [2024-10-14 09:02:43,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2024-10-14 09:02:43,689 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 09:02:43,690 INFO L215 NwaCegarLoop]: trace histogram [26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 09:02:43,690 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-14 09:02:43,690 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 09:02:43,690 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 09:02:43,691 INFO L85 PathProgramCache]: Analyzing trace with hash -1468143974, now seen corresponding path program 1 times [2024-10-14 09:02:43,691 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 09:02:43,691 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2132154598] [2024-10-14 09:02:43,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 09:02:43,691 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 09:02:43,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:03:31,856 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 09:03:31,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:03:31,862 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-14 09:03:31,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:03:31,867 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-14 09:03:31,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:03:31,871 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-14 09:03:31,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:03:31,875 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-14 09:03:31,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:03:31,879 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-14 09:03:31,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:03:31,882 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-14 09:03:31,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:03:31,885 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-14 09:03:31,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:03:31,890 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-14 09:03:31,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:03:31,899 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-14 09:03:31,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:03:31,911 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-14 09:03:31,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:03:31,921 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 09:03:31,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:03:31,930 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 09:03:31,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:03:31,945 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-14 09:03:31,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:03:31,961 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-14 09:03:31,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:03:31,971 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-14 09:03:31,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:03:31,981 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-14 09:03:31,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:03:31,992 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-14 09:03:31,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:03:32,004 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-14 09:03:32,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:03:32,013 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-14 09:03:32,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:03:32,023 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-10-14 09:03:32,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:03:32,034 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-10-14 09:03:32,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:03:32,048 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-10-14 09:03:32,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:03:32,058 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2024-10-14 09:03:32,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:03:32,068 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-10-14 09:03:32,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:03:32,080 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-10-14 09:03:32,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:03:32,093 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked. [2024-10-14 09:03:32,094 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 09:03:32,094 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2132154598] [2024-10-14 09:03:32,094 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2132154598] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 09:03:32,095 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 09:03:32,095 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-10-14 09:03:32,095 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1631455295] [2024-10-14 09:03:32,095 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 09:03:32,097 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-10-14 09:03:32,098 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 09:03:32,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-10-14 09:03:32,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2024-10-14 09:03:32,099 INFO L87 Difference]: Start difference. First operand 181 states and 284 transitions. Second operand has 14 states, 14 states have (on average 3.2142857142857144) internal successors, (45), 14 states have internal predecessors, (45), 2 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2024-10-14 09:03:36,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 09:03:36,842 INFO L93 Difference]: Finished difference Result 678 states and 1061 transitions. [2024-10-14 09:03:36,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-10-14 09:03:36,843 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 3.2142857142857144) internal successors, (45), 14 states have internal predecessors, (45), 2 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 172 [2024-10-14 09:03:36,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 09:03:36,849 INFO L225 Difference]: With dead ends: 678 [2024-10-14 09:03:36,849 INFO L226 Difference]: Without dead ends: 587 [2024-10-14 09:03:36,850 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=144, Invalid=408, Unknown=0, NotChecked=0, Total=552 [2024-10-14 09:03:36,854 INFO L432 NwaCegarLoop]: 94 mSDtfsCounter, 1214 mSDsluCounter, 570 mSDsCounter, 0 mSdLazyCounter, 1067 mSolverCounterSat, 129 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1214 SdHoareTripleChecker+Valid, 664 SdHoareTripleChecker+Invalid, 1196 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 129 IncrementalHoareTripleChecker+Valid, 1067 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2024-10-14 09:03:36,855 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1214 Valid, 664 Invalid, 1196 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [129 Valid, 1067 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2024-10-14 09:03:36,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 587 states. [2024-10-14 09:03:36,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 587 to 400. [2024-10-14 09:03:36,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 400 states, 291 states have (on average 1.4639175257731958) internal successors, (426), 291 states have internal predecessors, (426), 104 states have call successors, (104), 4 states have call predecessors, (104), 4 states have return successors, (104), 104 states have call predecessors, (104), 104 states have call successors, (104) [2024-10-14 09:03:36,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 400 states to 400 states and 634 transitions. [2024-10-14 09:03:36,935 INFO L78 Accepts]: Start accepts. Automaton has 400 states and 634 transitions. Word has length 172 [2024-10-14 09:03:36,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 09:03:36,938 INFO L471 AbstractCegarLoop]: Abstraction has 400 states and 634 transitions. [2024-10-14 09:03:36,938 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 3.2142857142857144) internal successors, (45), 14 states have internal predecessors, (45), 2 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2024-10-14 09:03:36,938 INFO L276 IsEmpty]: Start isEmpty. Operand 400 states and 634 transitions. [2024-10-14 09:03:36,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2024-10-14 09:03:36,941 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 09:03:36,941 INFO L215 NwaCegarLoop]: trace histogram [26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 09:03:36,941 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-14 09:03:36,942 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 09:03:36,942 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 09:03:36,942 INFO L85 PathProgramCache]: Analyzing trace with hash 1238475420, now seen corresponding path program 1 times [2024-10-14 09:03:36,942 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 09:03:36,943 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1250971238] [2024-10-14 09:03:36,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 09:03:36,943 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 09:03:36,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:03:37,063 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 09:03:37,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:03:37,068 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-14 09:03:37,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:03:37,071 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-14 09:03:37,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:03:37,073 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-14 09:03:37,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:03:37,075 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-14 09:03:37,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:03:37,078 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-14 09:03:37,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:03:37,080 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-14 09:03:37,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:03:37,083 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-14 09:03:37,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:03:37,085 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-14 09:03:37,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:03:37,087 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-14 09:03:37,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:03:37,093 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-14 09:03:37,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:03:37,095 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 09:03:37,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:03:37,100 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 09:03:37,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:03:37,103 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-14 09:03:37,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:03:37,106 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-14 09:03:37,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:03:37,111 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-14 09:03:37,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:03:37,113 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-14 09:03:37,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:03:37,115 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-14 09:03:37,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:03:37,118 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-14 09:03:37,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:03:37,123 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-14 09:03:37,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:03:37,128 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-10-14 09:03:37,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:03:37,132 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-10-14 09:03:37,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:03:37,136 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-10-14 09:03:37,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:03:37,139 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2024-10-14 09:03:37,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:03:37,142 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-10-14 09:03:37,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:03:37,145 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-10-14 09:03:37,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:03:37,148 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked. [2024-10-14 09:03:37,149 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 09:03:37,149 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1250971238] [2024-10-14 09:03:37,150 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1250971238] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 09:03:37,150 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 09:03:37,150 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 09:03:37,151 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [207978254] [2024-10-14 09:03:37,151 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 09:03:37,151 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 09:03:37,151 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 09:03:37,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 09:03:37,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-14 09:03:37,152 INFO L87 Difference]: Start difference. First operand 400 states and 634 transitions. Second operand has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2024-10-14 09:03:37,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 09:03:37,447 INFO L93 Difference]: Finished difference Result 1100 states and 1740 transitions. [2024-10-14 09:03:37,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 09:03:37,447 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) Word has length 172 [2024-10-14 09:03:37,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 09:03:37,456 INFO L225 Difference]: With dead ends: 1100 [2024-10-14 09:03:37,458 INFO L226 Difference]: Without dead ends: 701 [2024-10-14 09:03:37,460 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-10-14 09:03:37,461 INFO L432 NwaCegarLoop]: 177 mSDtfsCounter, 393 mSDsluCounter, 401 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 211 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 393 SdHoareTripleChecker+Valid, 578 SdHoareTripleChecker+Invalid, 249 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 211 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-14 09:03:37,465 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [393 Valid, 578 Invalid, 249 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [211 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-14 09:03:37,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 701 states. [2024-10-14 09:03:37,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 701 to 448. [2024-10-14 09:03:37,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 448 states, 339 states have (on average 1.4837758112094395) internal successors, (503), 339 states have internal predecessors, (503), 104 states have call successors, (104), 4 states have call predecessors, (104), 4 states have return successors, (104), 104 states have call predecessors, (104), 104 states have call successors, (104) [2024-10-14 09:03:37,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 448 states to 448 states and 711 transitions. [2024-10-14 09:03:37,525 INFO L78 Accepts]: Start accepts. Automaton has 448 states and 711 transitions. Word has length 172 [2024-10-14 09:03:37,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 09:03:37,526 INFO L471 AbstractCegarLoop]: Abstraction has 448 states and 711 transitions. [2024-10-14 09:03:37,526 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2024-10-14 09:03:37,526 INFO L276 IsEmpty]: Start isEmpty. Operand 448 states and 711 transitions. [2024-10-14 09:03:37,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2024-10-14 09:03:37,529 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 09:03:37,529 INFO L215 NwaCegarLoop]: trace histogram [26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 09:03:37,529 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-14 09:03:37,529 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 09:03:37,530 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 09:03:37,530 INFO L85 PathProgramCache]: Analyzing trace with hash -1045442148, now seen corresponding path program 1 times [2024-10-14 09:03:37,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 09:03:37,530 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1227800203] [2024-10-14 09:03:37,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 09:03:37,530 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 09:03:37,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat